Sanyo De Users Manual

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SANYO Electric Co.,Ltd

SANYO Electric Trading Co.,Ltd.

Type DE (Direct-fired Chiller/Heaters)

Type NE (Steam-fired Chillers)

Type LE (Hot water-fired Chillers)

SANYO Electric Air Conditioning Co.,Ltd.

International Business Division

Overseas Sales & Marketing Dept.

1 Otsuki-Cho, Ashikaga-City,

Tochigi 326-8534, Japan

Telephone : +81-284-44-3222

Facsimile : +81-284-44-3138

http://kuchosys.sanyo.co.jp/eng/

SANYO Electric Trading Co.,Ltd.

1-10 Ueno 1-chome,Taito-ku, Tokyo 110-8534 Japan

Telephone : +81-3-3837-6266

Facsimile : +81-3-3837-6389

Making the World a More Comfortable Place

SANYO’s absorption technology is in evidence in

many aspects of our daily lives, from where we do

business to the places we choose to relax.

Before operating the unit

*To use the unit properly before operating, be sure to carefully read the operation manual.

*Installation should conform to regulations and laws such as Building Standard Act, Fire Laws, Air Pollution

Prevention Laws and Labor Safety and Sanitary Law, and to any other applicable regulations and laws.

On the installation

*Read the installation manual carefully before carried-in and installing the unit.

*Carried-in and works of installation, foundation, wiring, piping, interlocks and thermal insulation are involved.

Please contact your agency with any questions relating to these issues. In case such works are inadequate, it may

cause overturn, electric shock, water and fuel leakage, scalding, fire and so forth.

*Please consult your agency when the work of flue, exhaust and in-take air duct, and chimneys are required. In

case such works are inadequate, it may cause scalding, fire and oxygen deficiency.

*Waterproof work of the foundation for installing the unit and drainage ditch are required in order to prevent

wetting surrounding equipment.

*Adequate space surrounding the unit is needed for maintenance work. Such space is indispensable for safe work

and avoiding injuries.

For maintenance

*Periodical maintenance, in addition to daily inspection, is required. If it is improper in maintenance, it may cause

fire, electric shock and scalding.

*Please consult the service agency to obtain professional guidance.

Avoiding hazardous places

*Keep the units away from inflammable dangerous substance such as gasoline and thinner and erosive gas which

may result in a fire.

For the safety sake

File No. : JQ116A

Date : October 13, 1997

ISO 9001

JISZ 9901

QS Accreditation

R004

File No. : JE011A

Date : November 23, 1998

ISO 14001

JISQ 14001

EMS Accreditation

RE011

SAE-2002

CONTENTS

Introduction 2

Absorption cycle 11

Direct-fired chiller / heaters 15

Steam-fired chillers 43

Hot water-fired chillers 63

Utility 81

SUPER ABSORPTION

The biggest cause of environmental deterioration, such as global warming, are CO2 emissions

due to energy consumption, and countermeasures are being undertaken on a worldwide

scale.

Every effort is being made to improve the environmental situation, from an institutional level

to an individual level. Today companies are required to live in harmony with environment.

SANYO has been a leader in the field of large type absorption chillers, making use of

absorption technologies accumulated over the years, and contributes to the development

of various types of energy saving systems and improving energy systems in air conditioning

businesses.

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Keeping the nature beautiful for the future generations....

That is the common wish of the human race.

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

SANYO absorption chillers highlightsIntroducing the SANYO absorption chillers:

Nomenclature

TSA -- DE -- 11

Unit Type

DE=Double effect, direct-fired

NE=Double effect, steam-fired

LE=Single effect, hot water-fired

Capacity Code

SANYO, as a leading company in this field more then 20 years in domes-

tic market in Japan, now brings the high efficiency of double-effect steam

chillers and double-effect direct-fired chiller/heaters to the world market.

The SANYO absorption chillers and chiller/heaters give building owners

a better solution for many new and retrofit applications. Installation of a

direct-fired chiller/heater eliminates the need for the boiler required with

conventional installations. This reduces the initial cost of the system, mak-

ing a SANYO chillers/heaters competitive with conventional chiller/boiler

system.

The SANYO absorption chillers and chiller/heaters offer a number of other

advantages:

• Excellent for peak shaving during high electrical demand periods.

• Replaces existing inefficient single-stage absorption chillers without an

expensive electrical service upgrade.

• Has the ability to tie into district steam systems with an efficient double-

effect chiller.

• Allows diversification of critical cooling requirements. Critical cooling

loads are met with minimal electrical power input with gas or steam

fired chillers.

• Allows for smaller emergency generators to be utilized since the elec-

trical load associated with an absorption chiller is minimal when com-

pared to an electrical driven chiller.

• Ozone safe, CFC free. Cooling requirements are met without chlorine

based refrigerants.

• Reduces contribution to global warming. Minimizes global impact by

greatly reducing electricity consumption and eliminating the use of

greenhouse gases.

• Low noise and vibration. The absorption chiller does not utilize a large

motor-compressor, and this leads to quiet, trouble-free operation.

• Small footprint. The high efficiency associated with the double-effect

chiller has reduced the space required for installation.

SANYO is the industry leader in supplying compact units.

• CE marking is applicable if requested.

With the ever-changing requirements of building owners and continual

changes in building designs, SANYO introduces to the world market the

next generation of high efficiency gas and steam fired, double-effect ab-

sorption chillers.

In many parts of the world, the cost of electricity and penalties adminis-

tered through demand limits, inverted rates, time-of-day rates, ratchet

clauses, etc., have forced the need for alternative chiller systems to be

developed.

Electrical peak power shaving

By using a combination of electric driven and absorption chillers for air

conditioning loads, a central plant can take advantage of lower base elec-

tricity rates during times of high electricity demand. The absorption unit is

used to shave peak power demands during summer operation, while

operating the electric chiller below the assigned demand limit, avoiding

costly demand charges and saving money all year-round.

With the aging of the world power plants and environmental and financial

concerns blocking construction of new ones, many areas are faced with

extremely high demand charges and escalating electricity costs. In these

areas, the entire cooling load can be handled by SANYO absorption units,

allowing the allotted electricity to be used elsewhere in the building where

there are no practical alternatives.

Heating and cooling operation

With the SANYO DE direct-fired double-effect chiller/heaters, the unit

can be used for heating during winter months without additional cost of

extra controls. In many applications, the chiller/heaters can replace a

traditional electric chiller and boiler design combination, with the advan-

tage of reducing machine room floor space and giving up to 40% sav-

ings on the system start up cost in many cases.

Double effect absorption cycle

Both the steam and direct-fired SANYO chillers utilize a double-effect

absorption cycle resulting in unit COP's of 1.0 for the direct-fired chiller/

heaters and 1.2 for the steam-fired chillers. This high efficiency design

has reduced the input energy of the original single stage-absorption chill-

ers by up to 30%. SANYO's state-of-the-art double effect design has also

allowed the unit to be reduced in size as compared to previous genera-

tion units, making SANYO the industry leader in efficiency and space

utilization.

Many applications

The SANYO offers the broadest range of equipment and operating con-

ditions in the entire industry: 23 discrete unit sizes from 100 tons to 1500

tons incorporating either direct-fired or steam-fired generators. With natural

gas as one of the heat sources for direct-fired types, the customer can be

assured of a fuel that is clean burning and environmentally friendly.

The SANYO steam-fired, double-effect chiller satisfies the building owner's

need for high efficiency replacement/retrofit units plus an optimal solu-

tion to new high pressure steam chilling systems. A SANYO double-ef-

fect steam chillers is the perfect complement to a district steam heating

system, offering single source heating and cooling.

The SANYO hot water-fired chillers is applicable not only combined in

Co-generation system but utilized the waste heat as a driving heat source

in the various applications.

No CFCs

In addition to the extensive list of design benefits above, the SANYO

units are completely ozone safe/no CFC's or HCFC's.

All cooling is achieved utilizing a refrigerant with a proven track record,

ample supplies and environmentally safe: namely, water!

Additionally, since an absorption cycle is accomplished without a large

motor-compressor drive arrangement, the customer can be assured of

quiet, trouble-free, ultra-low vibration operation.

Direct-fired chiller/heaters

Hot water-fired chillers

Steam-fired chillers

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Component identification Chiller features

Expert function by self-diagnosis

♦♦

♦ Prediction information

Graph 1. Fouling of heat transfer tubes in cooling water system

0020

40 60 80 100

Maintenance zone

Notice zone

Normal zone

Maintenance

judgement line

Normal line

Cooling load factor(%)

Fouling indicator

Graph 2. Tendency of absorbent concentration

0020

40 60 80 100

Abnormal stop zone

Maintenance zone

at cooling water 31°C

Normal line at

cooling water 31°C

Normal line at

cooling water 27°C

Maintenance zone

at cooling water 27°C

Cooling load factor(%)

Concentration indicator

Graph 3. Vacuum condition monitoring

1.0

0.6

020 60 80 100

Storage ratio(%)

Storage

tank

Pressure

sensor

Pd cell

Purge nozzle

Diluted solution

Pressure rising indicator

of storage tank

Maintenance zone

Notice

zone

Normal zone

Expert function is provided to monitor operating conditions, predict chiller

information and maintain stable operation.

Condenser

Absorber

Evaporator

Absorber

Purge pump

Gas train

Generator

sight glass

High temperature generatorControl panel

Low temperature generator

Burner

Refrigerant pump

Absorbent pump

Chilled water outlet

Condenser Palladium cell heaterChilled water inlet

Cooling water outlet

Cooling water inlet

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

SANYO control system

Display and control board

■ Display(normal)

Table 1. Indication lamp Sample 1.

Sample 2.

Exhaust gas temp 236°C

CH W temp 12.3 7.1°C

Notice : Low level vacuum

Caution : Foul tube of COW

Name Lamp color

Running(Operation) indication lamp Red

Stop indication lamp Green

Alarm indication lamp Orange

Bunner combustion indication lamp Red

Cooling / Heating indication lamp Orange

Remote / Local select button with lamp Red

Mode select button with lamp Red

Data display LCD

symbol

Table 2. Typical operation data

High temperature generator

Exhaust gas

Chilled water

Cooling water

Hot water

Chiller / heater

Combustion

No.1 Absorbent pump

Refrigerant pump

Low level vacuum (Notice / Caution)

High concentration (Notice / Caution)

Foul tube of cooling water (Notice / Caution)

High cooling water temperature (Notice / Caution)

Foul chamber (Notice / Caution) (only for oil-fired types)

Chilled water

Hot water

Chiller / heater

Burner

Temperature

Operation hours

Message

Set point

ON-OFF

Table 3. Typical alarm data

Operation alarm

Others

Generator solution level

Thermal relay of No.1 Absorbent pump

Thermal relay of No.2 Absorbent pump

Thermal relay of burner blower

Thermal relay of oil pump

Thermal relay of refrigerant pump

Interlock of chilled water pump

Interlock of hot water pump

Interlock of cooling water pump

Interlock of system

Generator pressure

Chilled water flow rate

Hot water flow rate

Generator temperature

High concentration

Purge tank pressure sensor

Solution temp sensor

Condensed refrigerant temp sensor

Generator temp sensor

Chilled water sensor

Hot water sensor

Cooling water sensor

Refrigerant temp sensor

Power failure

The SANYO control system surpasses other proportional only control

systems available today. The digital PID(proportional, integral, and dif-

ferential) control maximizes unit performance by maintaining a ±0.5°C

deviation in leaving chilled water temperature from setpoint. Proportional

controls typically can only maintain a ±1°C deviation from setpoint. The

controller's innovative design also incorporates the ability to start and

stop the system chilled/hot and cooling water pumps. During shutdown

these pumps are sequenced to insure a complete dilution cycle.

The leaving chilled water temperature is measured every five seconds

and fuel input is changed according to the gradient of the leaving chilled

water temperature curve. System temperatures, setpoints, and opera-

tional records are displayed along with indicator lights for the chiller, pumps

and burner.

The SANYO control system offers its users self-diagnostics by constantly

monitoring the chiller's status and will automatically shut the chiller down

should a fault occur. The cause of shutdown will be retained in memory

and can be displayed for immediate operator review. The controller's

memory will also retain and display the cause of the last three system

fault conditions. This method of retaining fault conditions is extremely

useful for maintaining an accurate record of unit performance and fault

history.

MODE

SETTING

STOP RUN

CHILLER

BUZZER STOP

STOP LOCAL

REMOTE

OPERATION

ALARM

BURNER

HEATING

COOLING

REF PUMP

#1 ABS PUMP

#2 ABS PUMP

PURGE PUMP

BURNER BLOWER

H Generator temp 149.9°C

Display and control board

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Optimum dilution cycle period can be shortened substantially according to microprocessor monitoring

This results in the appropriate dilution cycle operating hours.

Graph 6. Dilution cycle (DE)

Purge system

The high performance purge system maintains the required operating

pressure, preserves the chiller performance characteristics, minimizes

chiller maintenance as one purge time operation per season in case there

are four(4) seasons.

10 15 20

100

120

140

25 30 35 40

7°C

Temperature (°C)

Setting

Variable(5-30minutes)15minutes

ex.

Steam consumption

Cooling water inlet temperature

Chilled water inlet temperature

Chilled water outlet temperature

Steam control valve

opening ratio

Steam Consumption ratio (%)

Steam control opening ratio (%)

30minutes

Time(minutes)

Steam valve opening control

Operation

signal

OFF

Chiller /

heater

OFF

Cooling water

pump

OFF

Chilled / hot

water pump

OFF

1 min T 1 1 min T 2

Stop signal Chiller stop

T1: Count the time until generator temperature goes down to 120°C

(About 4 to 20 minutes)

T2: Decide the time by generator temperature.

(About 5 to 10 minutes)

Note :

1) Dilution time in cooling operation is minimum 6 minutes

to maximum 15 minutes.

2) Dilution time in heating operation is 5 minutes.

Unit proper and hot water pump stop in 5 minutes after stop signal is lit.

3) Stop the air conditioning system after complete stop of chiller.

Graph 7. Start up chart (NE)

Open angle of steam control valve at starting is controlled

by means of the three steps, resulting that the excessive

amount of steam and also the consumed time to reach the

desired level became less than the previous model.

Of course, by means of adjusting the open speed of steam

control valve at the second step and the third, it is possible

to set up to the most suitable condition met to the site aux-

iliary equipment.

OFF

00 5 10 15 20 25 30 35 40

Time(minutes)

Continuous operation of E model absorbent pump

Load factor 80% Load factor 40%

Conventional

Load change

Chilled water inlet temperature

Chilled water outlet temperature

E model

Absorbent

pump

Conventional pump

ON-OFF(3 times)

Temperature

(°C)

Temperature

setting 7°C

100

020 40 60 80 100

Cooling load factor(%)

Non-inverter

control

E model

Fuel consumption ratio(%)

Load factor(%)

100

Temperature(°C)

1. Chilled water outlet temperature 7°C constant

2. Cooling water inlet temperature

Speedy digital PID control

The introduction of new digital PID control to the E-model stabilizes the

chilled/hot water temperature with high accuracy than the previous C

model. It quickly responds to the load fluctuation and supplies stable

Control of high temperature generator by solution level control

With the new control system, solution flow rate is precisely controlled so

that the solution level of the high temperature generator is maintained at

a certain level.

Frequency of maneuvering has been substantially reduced with the syner-

Saving energy with the inverter

Balancing the load and flow rate with the absorbent pump’s inverter con-

trol enables efficient and energy saving operation. As a result, it saves

the

input energy and electric power consumption, running cost by 5%

compared to none-inverter control.

chilled/hot water temperature. It is suitable for air-conditioning intelligent

buildings which require sophisticated control.

getic

effect of absorbent pump inverter control. This enables the supply

of a more

stable temperature for chilled/hot water compared to conven-

tional

models.

Graph 4. Operating result by speedy PID control (gas-fired)

Graph 5. Running cost curve Table 4. Test condition

10 11

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

160

150

140

100

5101520253035

Time(minutes)

Steam consumption

control for 10 minutes

Steam consumption ratio

Steam consumption ratio(%)

Temperature of high temp. generator(°C)

Temperature of

high temperature generator

100

0★--13 ★+2★★--4

(Variable from 20°C to 33°C)

Maximum input(%)

Cooling water inlet temperature(°C)

High temperature generator safety control

When the temperature of the high temperature generator is higher

than a

certain temperature level, the steam consumption is controlled to

sustain safe

operation.

Expansion of safety operating zone

This ensures quick response to rapid changes and maintains stable

operation.

Safety operating zone is between 19°C and 34°C of cooling water

temperature. (In case cooling inlet water temperature is 32°C)

Crystallization protection

Microprocessor observes the absorbent concentration. Steam supply is

stopped and the unit is recovered to the normal operation when the con-

centration is over certain limit, to prevent the crystallization of absorbent.

Space saving by compact design

With the high performance heat transfer tubes, weight and size is re-

duced by 10% of the previous C model.

The absorption cycle

The absorption cooling cycle, like the compression refrigeration cycle, uti-

lizes the latent heat of evaporation of a refrigerant to remove heat from the

entering chilled water. The compression refrigeration system uses a chlorine

based refrigerant and a compressor to transport the refrigerant vapor to be

condensed in the condenser. The absorption system, however, uses water

as the refrigerant and an absorbent to absorb the vaporized refrigerant. Heat

is then applied to the solution to release the refrigerant vapor from the absor-

bent. The refrigerant vapor is then condensed in the condenser.

The basic absorption cycle (see Figure 1) involves generator, condenser,

evaporator and absorber with refrigerant (liquid) and lithium bromide as the

working solutions. The generator utilizes a heat source (burner, steam or hot

water) to vaporize the diluted lithium bromide solution. The water vapor that

is released travels to the condenser where it is condensed back into a liquid,

transferring the heat to the cooling tower water. Once condensed, the liquid

refrigerant is distributed over the evaporator tubes, removing the heat from

the chilled water and vaporizing the liquid refrigerant. The concentrated lithium

bromide solution from the generator passes into the absorber, absorbs the

refrigerant vapor solution from the evaporator and dilutes itself. The diluted

lithium bromide solution is then pumped back to the generator where the

cycle is started again.

Condenser

Liquid

refrigerant

Cooling

water Concentrated

solution

Chilled water Cooling water

Evaporator

Absorbent pump

Heat source

Generator

Absorber

Refrigerant vapor

Figure 1. Simplified absorption cycle

The generator section is divided into a high temperature generator and a low

temperature generator. The refrigerant vapor produced by the high tempera-

ture generator is used to heat the LiBr solution in the low temperature gen-

erator in which the pressure (hence the boiling point) is lower. Thus the heat

of condensation is effectively utilized.

As mentioned in the single effect type, the refrigerant vapor produced by the

low temperature generator is sent to the condenser to become liquid refriger-

ant. On the other hand, the refrigerant vapor produced by the high tempera-

ture generator turns to water as it releases heat to the intermediate LiBr

solution. This happens inside the heat transfer tubes in the low temperature

generator. The refrigerant vapor produced by both low and high temperature

generators turns to refrigerant liquid and mixes in the condenser before re-

turning to the evaporator.

Figure 2. Double effect absorption cycle

Cooling

water

Heat source

Liquid

refrigerant

Chilled water

Condenser

Refrigerant vapor Refrigerant vapor

Hight temperature

generator

Evaporator

Absorbent pump

Absorber

Diluted solution

Cooling water

Concentrated

solution

Intermediate

solution

Low temperature

generator

Figure 3. Detail of generator

Refrigerant vapor to condenser

Refrigerant vapor

Heat source

Diluted solution

Concentrated solution

Condensed

refrigerant Intermediate solution

Low temperature generator High temperature generator

Graph 8. Safety control chart

Graph 9. Safety operating chart

Double effect type

Together with the cooling water safety control and absorbent crystallization

pro-

tection control, the safety operating zone is broadened.

12 13

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Absorption cooling cycle

The SANYO super absorption machine applies the same basic absorption

principles but enhances the cycle by adding additional heat exchangers and

a second generator to recover all the available energy of the system and

maximize the unit's COP (see Figure 2).

D. High temperature generator section

The diluted solution from the heat exchangers is heated by the burner or

steam upon entering the high temperature generator and separates into re-

frigerant vapor and intermediate solution (see Figure 6).

Line D' to E of Graph 10 shows the heating and concentration process in the

high temperature generator. The diluted solution at point D' is heated at a

Figure 6. High temperature generator

Burner

High temperature generator

Refrigerant vapor

Exhaust gas

Diluted solutionIntermediate solution

A. Evaporator section

Liquid refrigerant entering the evaporator is dispersed uniformly on the chilled

water evaporator tubes (see Figure 4).

The low pressure of the evaporator causes the refrigerant to be boiled, thus

Chilled water outlet

Chilled water inlet

Absorber

Refrigerant pump

Absorbent pump Cooling water inlet

Liquid refrigerant

Concentrated solution

Diluted solution

Evaporator

Figure 4. Lower shell

The absorption cycle operates in a vacuum. This permits the liquid refriger-

ant to boil at a lower temperature, transferring the latent heat of evaporation

from the entering chilled water to cooling the chilled water.

Below is a component description of the absorption cycle with reference to

the D¨uhring diagram shown in Graph 10 at page 16.

B. Absorber section

Concentrated solution entering the absorber is dispersed uniformly on the

cooling water tubes (see Figure 4). The concentrated solution in the absorber

section absorbs the refrigerant vapor from the evaporator section of the ves-

sel.

Cooling water flowing through the absorber section heat transfer tubes ex-

tracts the heat generated by this absorption process. The concentrated solu-

tion, after absorbing the refrigerant vapor from the evaporator, becomes a

diluted solution.

Concentrated

solution Intermediate

solution

Low temperature

heat exchanger High temperature

heat exchanger

Diluted solution

Figure 5. Heat exchangers

C. Low and high temperature heat exchangers

The diluted solution, after leaving the absorber section, passes through the

low temperature heat exchanger (see Figure 5) where it is heated by the

concentrated solution. The diluted solution then passes through the high tem-

perature heat exchanger where it is further heated by intermediate solution.

The intermediate and concentrated solutions are cooled by the diluted solu-

vaporizing the refrigerant and causing the latent heat of the vaporized refrig-

erant to cool the chilled water.

Line A to B of Graph 10 describes the process in the absorber. The concen-

tration of the lithium bromide solution entering the absorber section is 63.5%

(all concentration levels and temperatures are approximate). The lithium bro-

mide solution then absorbs the refrigerant vapor from the evaporator section

and is cooled from 50°C to 37°C by the cooling water. This causes the bro-

mide solution to become diluted and it then leaves the absorber at a concen-

tration of 57.7% (point B, Graph 10).

tion. This cooling process of the concentrated solution allows for greater ab-

sorbing power due to its lower temperature.

Line B to C to D' of Graph 10 shows the temperature rise of the diluted

solution in the low and high temperature heat exchangers.

E. Low temperature generator section

The refrigerant vapor from the high temperature generator passes through

the heat transfer tubes of the low temperature generator (see Figure 7). The

intermediate solution from the high temperature heat exchanger passes to

the low temperature generator where it is heated by the refrigerant vapor.

The heated intermediate solution releases additional refrigerant vapor and

becomes concentrated to its final level. The condensed refrigerant in the

heat transfer tubes and the refrigerant vapor of the low temperature genera-

tor section then flows to the condenser.

Line F' to F to G of Graph 10 shows the concentrating process in the low

constant concentration to point D, where the refrigerant vapor is released

and the solution becomes concentrated to 60.8% (point E, Graph 10).

Following the intermediate solution, Line E to F' of Graph 10 shows heat

transfer from the intermediate solution to the diluted solution in the high tem-

perature heat exchanger (see Figure 5).

temperature generator. The intermediate solution enters the low tempera-

ture generator and is heated by the refrigerant vapor from the high tempera-

ture generator. Additional refrigerant vapor is released and the intermediate

solution becomes concentrated into its final concentration level of 63.7%

(point G, Graph 10).

Following the concentrated solution, Line G to A' of Graph 10 shows the

process of temperature reduction in the low temperature heat exchanger by

heat transfer to the diluted solution (Figure 5). Line A' to A shows the tem-

perature reduction of the concentrated solution entering the absorber.

14 15

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

F. Condenser section

The refrigerant vapor from the low temperature generator is condensed on

the cooling water heat transfer tubes of the condenser (see Figure 7). The

cooling water from the absorber flows through the condenser and removes

the heat of condensation from the refrigerant vapor from the low temperature

Figure 7. Upper shell

Low temperature generator

Refrigerant vapor

Intermediate solution

Concentrated solution

Cooling waterLiquid refrigerant

Condenser

Schematic cooling cycle

Figure 8. Direct-fired chiller / heaters



Exhaust Gas



High Temperature Generator



Burner



Heat Exchanger 



Cooling Water



Chilled Water



Evaporator



Absorber

Cooling Water



Condenser



Low Temperature Generator



Fuel



Heat sink 1.8 Waste heat 0.2

Refrigeration capacity 1.0 Heat 1.0

Cooling water Chilled water Heat

Vap. refrigerant

Dil. solutionInt. solutionConc. solution Liq. refrigerant

Direct-fired chiller / heaters

G. Refrigerant path and flow

In the high temperature generator, the heat source separates the refrigerant

from the lithium bromide solution.

The lithium bromide solution follows line D to E of Graph 10.

Line D to H of Graph 10 follows the refrigerant path and illustrates the change

of refrigerant vapor to liquid as it passes through the low temperature gen-

erator. The refrigerant then flows to the condenser (line H to I) where addi-

tional heat is removed. In the low temperature generator additional refriger-

ant is released from the lithium bromide solution (line F to G); this released

refrigerant travels to the condenser (line F to I) where it is condensed into a

generator section and is rejected to the cooling tower.

The condensed (liquid) refrigerant then flows to the evaporator where the

cycle starts again.

liquid. Point I represents the combination of liquid refrigerant from both the

low temperature generator and the condenser. The liquid refrigerant flows

into the evaporator where it mixes with evaporator refrigerant and is pumped

to the evaporator's dispersion trays (line I to J). The refrigerant is dispersed

on the evaporator heat transfer tubes and vaporizes; the vapor is absorbed

by the concentrated solution in the absorber causing the bromide solution to

become diluted (line J to B). The diluted solution flows to the low temperature

heat exchanger (line B to C) where the cycle is repeated.

16 17

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Heating cycle

In the absorption heating cycle (Figure 10), the unit is essentially acting as a

boiler. Diluted solution is heated in the high temperature generator releasing

refrigerant vapor from the absorbent.

The refrigerant vapor flows to the absorber/evaporator and condenses on

the heat transfer tubes of the evaporator. The water through the evaporator

Graph 10. D¨uhring diagram

Condenser

Cooling Water outlet

High Temperature

Generator

Absorber

Cooling Water

A Valve

Chilled Water

Refrigerant Pump

Absorbent Pump Cooling Water Inlet

Purge Unit Heat Exchanger

Evaporator

Burner

Low Temperature Generator Exhaust Gas

Chilled Water

Open

Concentrated Solution

Intermediate Solution

Diluted Solution

Liquid Refrigerant

Refrigerant Vapor

Valve

heat transfer tubes removes the sensible heat of the condensed refrigerant

and transfers the heat to the hot water loop. The condensed refrigerant is

mixed with the intermediate solution creating diluted solution. The diluted

solution is pumped back to the high temperature generator where the cycle

is started again.

Figure 10. Heating cycle

Condenser

High Temperature

Generator

Absorber

A Valve

Hot Water

Refrigerant Pump

Absorbent Pump

Purge Unit

Evaporator

Burner

Low Temperature Generator Exhaust Gas

Open

Intermediate Solution

Diluted Solution

Liquid Refrigerant Hot Water

Refrigerant Vapor

Valve

Heat Exchanger

100 760

700

500

400

300

200

160

100

Temperature of refrigerant (°C)

Pressure (Torr)

Temperature of absorbent (°C)

0010 20 30 40

40%

45%

50%

55%

60%

65%

68%

60 70 80 90 100 110 120 130 140 150 160 170

BA'

Line of Constant Concentrations

Cooling cycle

Figure 9. Cooling cycle

18 19

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Double effect direct-fired absorption chiller / heaters

This is a high efficient-double effect absorption chiller / heaters using combustion heat of gas or oil as the driving

heat source.

It is able to take chilled water of 7°C while hot water of 55°C is in heating mode.

Flow rate

Pressure drop

Connection (JIS)



Holding water volume

Flow rate

Pressure drop

Connection (JIS)



Holding water volume

Flow rate

Pressure drop

Connection (JIS)



Holding water volume

Kind of fuel

Overall dimenstions

Weights

Shipping method

Supply pressure

Cooling consumption

Heating consumption



Fuel connection (JIS)

Flue connection



Length (L)

Width (W)

Height (H)

Tube removal

Electric power

Electric data

Operating weight

Max. shipping weight



Total shipping

weight



No.1 ABS pump

No.2 ABS pump

REF pump



Purge pump



Burner motor



PD cell heater

Control circuit

Total electric current

Apparent power



DE-11 DE-12 DE-13 DE-14 DE-21 DE-22 DE-23 DE-24 DE-31 DE-32



◆ DE Model Specification

100 120 150 180 210 240 280 320 360 400

352 422 527 633 738 844 985 1,125 1,266 1,407

253.0 303.6 379.5 455.4 531.3 607.2 708.4 809.6 910.8 1,012

294 353 441 530 618 706 824 941 1,059 1,177

12 → 7℃（Fouling factor=0.088m

℃/kW（0.0001m

h℃/kcal）・Max.working pressure 784kPa（8 kgf/cm

G））

32 → 37.5℃（Fouling factor=0.088m

℃/kW（0.0001m

h℃/kcal）・Max.working pressure 784kPa（8 kgf/cm

G））

50.8 → 55.0℃（Fouling factor=0.088m

℃/kW（0.0001m

h℃/kcal）・Max.working pressure 784kPa（8 kgf/cm

G））

Natural gas

1 section

3 phase 380V 50Hz

300

0.4

1.1

3,000

1-1/2

29.4

60.5 72.6 90.7 109 127 145 169 194 218 242

4 5 6

5 6 8

0.12 0.13 0.15 0.17 0.22 0.24 0.28 0.30 0.34 0.36

60.5 72.6 90.7 109 127 145 169 194 218 242

6.5 6.6 8.0 8.3 7.5 7.9 5.1 5.5 5.8 6.1

64 65 78 81 74 77 50 54 57 60

300 360 450 540 630 719 840 960 1,080 1,199

349 419 523 628 733 836 977 1,116 1,256 1,394

300 360 450 540 630 719 840 960 1,080 1,199

6.5 6.6 8.0 8.3 7.5 7.9 5.1 5.5 5.8 6.1

64 65 78 81 74 77 50 54 57 60

0.31 0.34 0.38 0.42 0.53 0.58 0.63 0.69 0.89 0.95

38 43 64 75 55 61 107 119 85 92

4,900 5,200 6,300 6,800 8,000 8,500 9,800 10,400 12,800 13,500

4,500 4,800 5,800 6,200 7,300 7,700 8,900 9,400 11,600 12,200

9.3 12.2 13.6 13.7 16.5 18.7

7.2 9.6 10.8 13.1 14.9

1.3 2.5 3.4

3.9 6.8 9.1

0.2 0.4

0.76 1.4 2.6

2.1 3.5 5.7

38 76

1.3 1.8

2,960 3,080 3,700 3,950 4,860 4,950 4,930

1,810 1,980 2,070 2,090 2,280

1,960 2,160 2,390

2,400 3,400 4,500

280×210 310×310 360×310 

0.12 0.13 0.15 0.17 0.22 0.24 0.28 0.30 0.34 0.36

3.9 4.4 6.5 7.7 5.6 6.2 10.9 12.1 8.7 9.4

100 120 150 180 210 240 280 320 360 400



（USRT）



（Mcal/h）



（mH

O）

kPa

inch



（mH

O）

kPa

inch



（mH

O）

kPa

inch

liter



（mmH

O）



kPa

（Mcal/h）

kW

（Mcal/h）

kW

inch

mm



mm



kgf



A

kVA



kW

A

kW

A

kW

A

kW

A

kW

A

W

Refrigeration

capacity

Heating capacity

Unit

Hot water system

Cooling water system

Chilled water system

Model（TSA-DE-＊＊）

＊＊＊



DE-41 DE-42 DE-51 DE-52 DE-53 DE-61 DE-62 DE-63 DE-71 DE-72 DE-73 DE-81 DE-82

450 500 560 630 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500

1,582 1,758 1,969 2,215 2,461 2,813 3,165 3,516 3,868 4,220 4,571 4,923 5,274

1,138.5 1,265 1,416.8 1,593.9 1,771 2,024 2,277 2,530 2,783 3,036 3,289 3,542 3,795

1,324 1,471 1,647 1,853 2,059 2,353 2,648 2,942 3,236 3,530 3,824 4,119 4,413

272 302 339 381 423 484 544 605 665 726 786 847 907

5.2 5.5 4.6 6.2 8.1 5.7 7.6 9.9 6.2 7.8 9.6 7.8 9.5

0.46 0.48 0.65 0.71 0.77 0.99 1.06 1.13 1.41 1.51 1.61 1.83 1.94

272 302 339 381 423 484 544 605 665 726 786 847 907

5.2 5.5 4.6 6.2 8.1 5.7 7.6 9.9 6.2 7.8 9.6 7.8 9.5

0.46 0.48 0.65 0.71 0.77 0.99 1.06 1.13 1.41 1.51 1.61 1.83 1.94

51 54 45 61 79 56 74 97 61 76 94 76 93

450 500 560 630 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500

10.3 11.2 7.1 9.4 12.1 8.5 11.2 14.4 9.4 11.8 14.5 12.2 14.7

1.11 1.19 1.87 2.01 2.14 2.79 2.97 3.15 3.67 3.90 4.11 4.51 4.76

1,350 1,496 1,683 1,892 2,101 2,398 2,695 3,003 3,300 3,597 3,905 4,202 4,499

1,570 1,740 1,957 2,200 2,443 2,788 3,134 3,492 3,837 4,183 4,541 4,886 5,231

1-1/2 2 2-1/2 3

410×310 350×500 400×620 400×900 

1 section 2 sections

1,350 1,496 1,683 1,892 2,101 2,398 2,695 3,003 3,300 3,597 3,905 4,202 4,499

15,800 16,600 22,200 24,000 25,700 31,900 34,400 37,100 45,100 48,500 51,500 56,100 59,100

14,200 14,900 19,500 21,100 22,700 15,500 16,500 17,700 21,500 23,000 24,300 26,000 27,500

18.7 30.9 36.4 41.7 45.7 54.4 58.9 64.9

3.4 3.7 5.5 7.5

9.1 13.4 15.0 19.0 24.0

1.8 3.0 3.7

0.4 0.75

1.1 1.9

2.6 4.0 6.5 9.0 12.0

5.7 8.0 13.5 18.0 24.0

76 152

5.4 9.1 12.0

14.9 24.9 29.4 33.8 37.1 44.2 47.9 52.9

14,200 14,900 19,500 21,100 22,700 28,100 30,400 32,800 40,000 43,000 45,800 49,700 52,300

4,940 5,260 5,810 6,300 6,040 6,480 7,010 6,430 6,960 7,460 6,960 7,460

4,500 4,600 5,200 5,700 5,200 5,700 6,200 5,700 6,200 6,700 6,200 6,700

2,490 2,990 3,240 4,100 4,450

2,600 2,900 3,330 3,450 3,650

101 110 70 92 119 83 110 141 92 116 142 120 144

8 10 12 14

51 54 45 61 79 56 74 97 61 76 94 76 93

12 → 7℃（Fouling factor=0.088m

℃/kW（0.0001m

h℃/kcal）・Max.working pressure 784kPa（8 kgf/cm

G））

32 → 37.5℃（Fouling factor=0.088m

℃/kW（0.0001m

h℃/kcal）・Max.working pressure 784kPa（8 kgf/cm

G））

50.8 → 55.0℃（Fouling factor=0.088m

℃/kW（0.0001m

h℃/kcal）・Max.working pressure 784kPa（8 kgf/cm

G））

Natural gas

3,000

3 phase 380V 50Hz

300

0.4

1.8

29.4

10 12 14 16



＊＊＊

Specifications subject to change without notic

20 21

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

1.Absorption chiller / heaters

(1) Lower shell

•Evaporator and refrigerant dispersion tray

•Absorber and absorbent dispersion tray

•Eliminators

(2) Heat exchangers

•High temperature (H.T.) heat exchanger

•Low temperature (L.T.) heat exchanger

(3) Upper shell

•Low temperature (L.T.) generator

•Condenser

•Eliminators

(4) High temperature (H.T.) generator

(5) Burner and gas train

•Dual fuel burner as option

(6) Pumps

•Absorbent pump (s) with isolating valves

•Refrigerant pump with isolating valves

•Purge pump

(7) Control panel

•CE marking (if requested according to the regulation).

(8) Locally mounted controls and instruments

•Temperature sensor

•H.T. generator solution level electrodes

•H.T. generator pressure gauge

(9) Purge device

•Purge tank

•Ejector and liquid trap

•Piping and various manual valves

•Palladium cell with heater

(10) Interconnecting piping and wiring

(11) Initial charge

•Absorbent (lithium bromide)

•Refrigerant

•Inhibitor

(12) Painting

•Main unit: Rust preventive painted

•Control panel: Finish painted

(13) Accessories

•Operation manual : One set

•Washer (for fixing foundation bolts) : One set

•Manometer : One piece

•Gasket and sealant for rupture disk : One set

(if requested according to the regulation).

Scope of supply (DE)

2.Factory test

Tests below are carried out in the SANYO factory.

•Check of external dimensions

•Leak test (vacuum side and gas train)

•Hydraulic test of water headers

•Electric insulation resistance test

•Dielectric breakdown test

•Function test of electric circuit and safety devices

•Performance test only for one section shipping unit.

＊One unit is tested when several units of the same model are

ordered for one project.

3.Scope of supply of the purchaser

(1) Unloading, transportation, and insurance depend on the

individual sales contractor between your company and

SANYO groups.

(2) Foundations with foundation bolts.

(3) External chilled/hot water, cooling water, fuel gas and flue

piping work including various safety valves, isolating valves,

etc.

(4) Rupture disk, flange of rupture disk, bolts, nuts, piping work

and tank, etc, if necessary.

(5) External wiring and piping for the chillers including

necessary parts.

(6) Insulation for the chillers including necessary parts.

(7) Mating flanges, gaskets, bolts and nuts

•Gas inlet nozzle flange of gas train.

•Exhaust gas outlet nozzle flange.

•Inlet / outlet nozzle flanges of chilled/hot water. (evaporator)

•Inlet / outlet nozzle flanges of cooling water.

(absorber / condenser)

(8) Finish painting of the chillers.

(9) Cooling water inlet temperature control device.

(10) Various temp. / press. gauges for gas and water lines.

(11)

Cooling tower (s), chilled water pump (s), hot water pump (s)

and cooling water pump (s) and its auxiliary accessaries.

(12) Electric power supply (specified value).

(13) Supply of chilled water, cooling water, hot water and gas at

rated conditions.

(14) Necessary tools, workers and materials for installation and

site test operation.

(15)

After-sales service and periodical maintenance of the chillers.

(16) Any other item not specifically mentioned in the scope of

supply.

Scope of order (DE)

Item

Chilled water

Hot water

Max. working pressure

Hydraulic test pressure

Fouling factor

Material of tube

Water quality

Structure of water header

Manufacturing standard of water header

Temperature

Flow rate

Max. working pressure

Hydraulic test pressure

Fouling factor

Material of tube

Water quality

Structure of water header

Manufacturing standard of water header

Kind of gas

Supply gas pressure

Phase

Voltage

Frequency

Shipment

Safety functions

Capacity control

Parts

Painting

Indication lamps

Display

External terminals

(no-voltage normal open contact)

Structure

Parts

Electrical wiring and piping

Place

Ambient temperature

Ambient humidity

Atmosphere

Option

Outlet : 5°C~12°C

Temperature difference: 3°C~10°C

Changes depending on chilled water temperature

difference (min. flow rate : 50%)

Max. outlet temperature: 60°C

Additional heater : Max 80°C

Flow rate should correspond to chilled water flow rate

DE-11~42 : Max. 2 rank up

DE-51~81 : Max. 1 rank up

981∼1961kPa (10kg/cm2G~20kg/cm2G)

Max. working press.✕1.5 times (0.196m2°C/kW)

Max. 0.176m2°C/kW (0.0002m2h°C/kcal)

No option

Inlet : 20.0°C~33.0°C

Within the water flow range of each model

981∼1961kPa (10kg/cm2G~20kg/cm2G)

Max. working press.✕1.5 times

Max. 0.196m2°C/kW (0.0002m2h°C/kcal)

No option

LPG, Kerosine, Diesel oil

Contact SANYO's representative

Multi-shipment

Cooling water flow switch

No option

Standard

Inlet : 12.0°C

Outlet : 7.0°C

0.605m3/h•RT

Inlet : 50.8°C

Outlet : 55.0°C

0.605m3/h•RT

784kPa (8kg/cm2G)

Max. working press.+196kPa (2kg/cm2)

0.088m2°C/kW (0.0001m2h°C/kcal)

Copper tube

Refer to JRA-GL02E-1994

Removal type

SANYO standard

Inlet : 32.0°C

Outlet : 37.5°C

1.0m3/h•RT

784kPa (8kg/cm2G)

Max. working press.+196kPa (2kg/cm2)

0.088m2°C/kW (0.0001m2h°C/kcal)

Copper tube

Refer to JRA-GL02E-1994

Removal type

SANYO standard

Natural gas

29.4kPa(3,000mmH2O)

3 phase 380V 50Hz

(Voltage regulation : within ± 10%)

(Frequency regulation : within ± 5%)

One-section : DE-11 thru DE-53

Two-sections : DE-61 thru DE-82

Refrigerant temperature supervision

Chilled water freeze protection

Chilled water flow switch

Hot water temperature supervision

Cooling water temperature supervision

H.T. generator temperature supervision

H.T. generator press. supervision

H.T. generator level. supervision

Exhaust gas temperature supervision

Crystallization protection

Motor protection

Digital PID control by chilled water outlet temperature

Inverter control of No.1 absorbent pump

Selected by SANYO

Munsell 5Y-7/1

Operation : red

Stop : green

Equipment alarm : orange

LCD

Indoor type

Selected by SANYO

Wire : 600V grade polyvinyl chloride-insulated wires

Pipe : plicatube (flexible metal conduits)

Indoor

5°C~40°C

Relative humidity : Max.90% (45°C)

Be sure the following are not present:

•Corrosive gas

•Explosive gas

•Poisonous gas

Installation condition

Control panel Control Electricity Fuel Cooling water Chilled/hot water

Temperature

Flow rate

Temperature

Flow rate

Rank up

Operation indication

Stop indication

Alarm indication

Ventilation fan operation

Answer back indication

Combustion indication

Cooling mode indication

Heating mode indication

22 23

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Model A B L

DE-11 215 865 2960

DE-12 15 665 3080

Figure 11. DE-11 Thru DE-12

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1810(W) L

2400

(Tube removal space either side)

1960

(H)

1940

1900

1921

777

Rupture Disk

4 inch

1904

975

300

200

882

780

863

882

800

229

205

325

755

480 R500

1809

1265

923

595

COW outlet

5 inch

COW inlet

5 inch

CHW outlet

4 inch

CHW out / in COW in / out

CHW inlet

4 inch

230

1715

1865

1975

365

200

180

1896

2311

Flue connection 280✕210

Fuel connection

1-1/2 inch

Wire connection ø33 hole Chamber drain PT1

Model A B

DE-13 350 1000

DE-14 150 800

Figure 12. DE-13 Thru DE-14

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1980(W) 3700(L)

3400

(Tube removal space either side)

1960

(H)

1940

1900 1904

934

300

200

882

910

1030

1921

882

800

112

300

350

600

900

R500

1809

1265

923

595

Rupture Disk

4 inch

COW outlet

5 inch

COW inlet

5 inch

CHW outlet

4 inch

CHW out COW in COW out CHW in

CHW inlet

4 inch

328

230

2100

2251

2361

365

200

180

2916

3096

3116

Flue connection 280✕210

Fuel connection

1-1/2 inch

Wire connection

ø33 hole Chamber drain PT1

24 25

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Model A B

DE-21 350 1000

DE-22 150 800

Figure 13. DE-21 Thru DE-22

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

2070(W) 3950(L)

3400

(Tube removal space either side)

2160

(H)

2140

1900

2089

905

1064

200

1065

810

940

2106

1921

1065

1000

306

185

330

510

835

R500

1980

1346

1006

603

Rupture Disk

4 inch

COW outlet

6 inch

COW inlet

6 inch

CHW outlet

5 inch

CHW in/out COW in COW out CHW in

CHW inlet

5 inch

438

230

2350

2501

2652

390

212

195

2916

3111

3128

Flue connection 310✕310

Fuel connection

1-1/2 inch

Wire connection

ø33 hole Chamber drain PT1

Model A B L

DE-23 750 1400 4860

DE-24 550 1200 4950

Figure 14. DE-23 Thru DE-24

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

2090(W)

4500

(Tube removal space either side)

2160

(H)

2140

1900

2088

903

1050

300

200

1065

880

960

2106

1065

1000

306

205

330

530

855

R500

1980

1333

1019

603

Rupture Disk

4 inch

COW outlet

8 inch

COW inlet

8 inch

CHW outlet

6 inch

CHW in/out COW in COW out

CHW inlet

6 inch

438

230

2350

3400

3561

411

221

195

3936

4131

Flue connection 310✕310

Fuel connection

1-1/2 inch

Wire connection

ø33 hole Chamber drain PT1

26 27

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Model A B

DE-31 750 1400

DE-32 550 1200

Figure 15. DE-31 Thru DE-32

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

2280(W) 4930(L)

4500

(Tube removal space either side)

2390

(H)

2370

1900

2323

978

1100

200

300

1156

950

1042

2340

1156

1100

358

200

320

550

900

R500

2198

1476

1066

611

Rupture Disk

4 inch

COW outlet

8 inch

COW inlet

8 inch

CHW outlet

6 inch

CHW in/out COW in COW out

CHW inlet

6 inch

488

255

3150

3325

3486

494

250

245

3886

4131

Flue connection 360✕310

Fuel connection

1-1/2 inch

Wire connection

ø33 hole Chamber drain PT1

Model A B

DE-41 380 1030

DE-42 180 830

Figure 16. DE-41 Thru DE-42

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

2490(W) 4940(L)

4500

(Tube removal space either side)

2600

(H)

2580

1900

2513

1032

1236

200

300

1221

1065

1184

2531

1221

1150

307

245

385

645

1045

R500

2383

1613

1142

577

Rupture Disk

4 inch

COW outlet

10 inch

COW inlet

10 inch

CHW outlet

8 inch

CHW in/out COW in COW out

CHW inlet

8 inch

478

255

3080

3255

3416

492

276

244

3886

4130

Flue connection 410✕310

Fuel connection

1-1/2 inch

Wire connection

ø33 hole Chamber drain PT1

28 29

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Model A B C D E F G K L

DE-51 3836 3966 4206 3130 3305 3511 4482 4600 5260

DE-52 4378 4508 4748 3330 3505 3711 5024 5200 5810

DE-53 4876 5006 5246 3530 3705 3911 5522 5700 6300

Figure 17. DE-51 Thru DE-53

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 52 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

2990(W)

(Tube removal space either side)

2900

(H)

1900

1378

2855

2825

1463

200

300

1700

1198

1600

634

120

390

570

1170

1020

R600

2630

1760

1170

650

Rupture Disk

6 inch

COW outlet

12 inch

COW inlet

12 inch

CHW outlet

8 inch

CHW in/out COW out COW in

CHW inlet

8 inch

480

1130

290

640

265

240

130

AB C

Flue connection 350✕500

Fuel connection

1-1/2 inch

Wire connection

ø54 hole Chamber drain 1-1/2 inch

Model A B C D E F G K L M

DE-61 4328 4468 4758 5076 3798 4023 4252 5200 6040 2

DE-62 4826 4966 5256 5574 4098 4323 4552 5700 6480 2

DE-63 5350 5490 5780 6099 4398 4623 4852 6200 7010 2-1/2

Figure 18. DE-61 Thru DE-63

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 52 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

3240(W) L

(Tube removal space either side)

3330

(H)

1900

1634

3286

3260

1635

200

300

1870

1255

1870

1800

736

120

420

620

1220

1120

R600

3050

2025

1315

753

Rupture Disk

6 inch

COW outlet

14 inch

COW inlet

14 inch

CHW outlet

10 inch

CHW in/out

COW out COW in

CHW inlet

10 inch

748

1398

310

765

310

292

140

AB C D

Flue connection 400✕620

Fuel connection

M inch

Wire connection

ø52 hole Chamber drain

1-1/2 inch

30 31

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Model A B C D E F K L M

DE-71 4426 4566 5096 3170 3395 3620 5700 6430 2-1/2

DE-72 4950 5090 5620 3470 3695 3920 6200 6960 3

DE-73 5450 5590 6120 3770 3995 4220 6700 7460 3

Figure 19. DE-71 Thru DE-73

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 52 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

4100(W)

(Tube removal space either side)

3450

(H)

1564

3360

2005

200

2410

1100

1528

2410

2200

920

220

820

1520

1420

3135

3395

1335

735

300

Rupture Disk

6 inch

COW outlet

16 inch

CHW outlet

12 inch

1960

1900

CHW outlet

12 inch

CHW in/out COW in COW out

COW inlet

16 inch

580

786

990

710

140

3720

AB C

Flue connection

400✕900

Fuel connection

inch

Wire connection ø52 hole

Wire

connection

ø52 hole

Chamber drain

1-1/2 inch

R600

Model A B C D E F K L

DE-81 4950 5090 5620 3770 3995 4220 6200 6960

DE-82 5450 5590 6120 3970 4195 4420 6700 7460

Figure 20. DE-81 Thru DE-82

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 52 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

4450(W)

(Tube removal space either side)

3650

(H)

1647

3560

2185

200

2600

1200

1688

2600

2400

1006

200

900

1700

1600

3330

3587

1430

757

300

Rupture Disk

6 inch

COW outlet

16 inch

CHW outlet

14 inch

2040

1900

CHW outlet

14 inch

CHW in/out COW in COW out

COW inlet

16 inch

580

786

990

710

140

3720

AB C

Flue connection

400✕900

Fuel connection

3 inch

Wire connection ø52 hole

Wire

connection

ø52 hole

Chamber drain

1-1/2 inch

R600

32 33

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Foundation dimensional data (DE)

NOTES :

1. Shaded area indicates the base of absorption chiller/heaters.

2. A reasonably level concrete foundation must be provided on which

to mount the chiller.

3. Provide a floor drainage ditch around foundation of the chiller.

4. If foundation anchoring is required, supply anchor bolts and nuts. Fix

anchor bolts on the foundation prior to chiller installation and as per

detail of weld (Figure 21). Washers are supplied with the chiller.

Figure 21. Details of weld

5. For direct-fired (DE) chiller/heaters, provide support for the burner

and gas train.

6. Unit must be level before startup. See leveling information in ” Instal

lation and Application Data ” section of this catalog.

Washer

Base

Nut

Weld

A=150mm and more

Figure 22. DE-11 Thru DE-12

Figure 23. DE-13 Thru DE-63

AA AA

CC BB

AA AA

Figure 24. DE-71 Thru DE-82

Model

No.

Weight (kg) Dimensions (mm)

4,900 1,600 900 800 865 850 1,896 -- 800 1,100 150 175 350

5,200 1,700 1,000 800 665 1,050 1,896 -- 800 1,100 150 175 350

6,000 2,100 1,200 900 1,000 1,100 2,916 -- 800 1,100 150 175 350

6,800 2,300 1,300 900 800 1,300 2,916 -- 800 1,100 150 175 350

8,000 2,700 1,400 1,200 1,000 1,350 2,916 -- 1,000 1,300 150 175 350

8,500 2,800 1,600 1,300 800 1,550 2,916 -- 1,000 1,300 150 175 350

9,800 3,300 1,700 1,500 1,400 1,850 3,936 -- 1,000 1,300 150 175 350

10,400 3,500 1,900 1,500 1,200 2,050 3,936 -- 1,000 1,300 150 175 350

12,800 4,400 2,200 1,800 1,400 1,750 3,886 -- 1,100 1,400 150 200 400

13,500 4,500 2,400 2,100 1,200 1,950 3,886 -- 1,100 1,400 150 200 400

15,800 5,400 2,700 2,300 1,030 2,050 3,886 -- 1,150 1,450 150 200 400

16,600 5,500 3,000 2,600 830 2,250 3,886 -- 1,150 1,450 150 200 400

22,200 8,000 3,300 2,900 1,130 2,000 3,966 130 1,600 1,960 180 190 510

24,000 8,600 3,600 3,200 1,130 2,200 4,508 130 1,600 1,960 180 190 510

25,700 9,200 3,900 3,400 1,130 2,400 5,006 130 1,600 1,960 180 190 510

31,90011,300 4,900 4,400 1,398 2,400 4,468 140 1,800 2,160 180 310 560

34,40012,100 5,400 4,800 1,398 2,700 4,966 140 1,800 2,160 180 210 560

37,10013,000 5,800 5,300 1,398 3,000 5,490 140 1,800 2,160 180 210 560

45,10015,900 6,900 6,400 70 3,100 4,566 140 2,200 2,560 180 210 560

48,50017,000 7,600 6,900 70 3,400 5,091 140 2,200 2,560 180 210 560

51,50018,000 8,100 7,400 70 3,700 5,594 140 2,200 2,560 180 210 560

56,10019,500 8,900 8,200 70 3,700 5,091 140 2,400 2,760 180 210 560

59,10020,600 9,300 8,600 70 3,900 5,591 140 2,400 2,760 180 210 560

DE-11

DE-12

DE-13

DE-14

DE-21

DE-22

DE-23

DE-24

DE-31

DE-32

DE-41

DE-42

DE-51

DE-52

DE-53

DE-61

DE-62

DE-63

DE-71

DE-72

DE-73

DE-81

DE-82

Oper.

AA BB CC A B C D E F G H I K L M N P Q R S T U

150 550 850 175 350 150 650 150 900 1,855

150 600 900 175 350 150 700 150 900 --

300 600 900 175 350 150 700 150 900 --

185 650 950 175 350 150 750 150 1,100 --

205 650 950 175 350 150 750 150 1,100 --

200 700 1,000 200 400 200 800 200 1,200 --

245 800 1,100 200 400 200 900 200 1,250 --

120 900 1,260 230 460 200 1,000 250 1,700 --

120 1,000 1,360 280 560 300 1,100 300 1,900 --

220 1,200 1,560 280 560 300 1,300 300 2,300 --

200 1,400 1,760 280 560 300 1,500 300 2,500 --

Name Lamp color

Running(Operation) indication lamp Red

Stop indication lamp Green

Alarm indication lamp Orange

Bunner combustion indication lamp Red

Cooling / Heating indication lamp Orange

Remote / Local select button with lamp Red

Mode select button with lamp Red

Data display LCD

symbol

Control panel (DE)

MODE

SETTING

STOP RUN

CHILLER

BUZZER STOP

STOP LOCAL

REMOTE

OPERATION

ALARM

BURNER

HEATING

COOLING

REF PUMP

#1 ABS PUMP

#2 ABS PUMP

PURGE PUMP

BURNER BLOWER

H Generator temp 149.9°C

DE--11 thru DE--42 DE--51 thru DE--82

1600

500

300 30

120

300 30

70120

600

Power supply ø52

Remote control ø27

Power supply ø33

Remote control ø27

Table 5. Dimensional data

Table 6. Indication lamp

Figure 25. Control panel

34 35

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Field wiring (DE)

Figure 26. Typical electrical field connection diagram - Direct-fired (DE)

Chilled/hot water

pump interlock

To power source

3 Ph,50/60Hz

400V, 415V, 440V

171

For message signal

(52CH)

138

Cooling water

pump interlock (52CO)

The unit can be operated by the following five type signal.

(1)Non-voltage normal open contact(A) for start & stop (DC24V 10mA).

:Wiring the terminal 330 and 333.

(2)Non-voltage normal open contact(A) for start (DC24V 10mA).

:Wiring the terminal 330 and 333.

Non-voltage normal open contact(A) for stop (DC24V 10mA).

:Wiring the terminal 331 and 333.

(3)Non-voltage normal open contact(A) for start (DC24V 10mA).

:Wiring the terminal 330 and 333.

Non-voltage normal close contact(B) for stop (DC24V 10mA).

:Wiring the terminal 331 and 333.

(4)Continuous signal of DC/AC 24V for start & stop.

:Wiring the terminal 330 and 332.(Those terminals are non-polarity.)

(5)Pulse signal of DC/AC 24V for start.

:Wiring the terminal 330 and 332.(Those terminals are non-polarity.)

Signal of DC/AC 24V for stop.

:Wiring the terminal 331 and 332.(Those terminals are non-polarity.)

Remote signal

330

DC/AC 24VDC/AC 24V

Terminal strips in the control panel

(4)(1) (5)

136

135

Ventilation fan

interlock (52F)

For emergency stop signal

(Those terminals are

connected by jumper)

Remove the jumper

before using

those terminals

333

332

171 171

330

(2)

331

333

332

331

333

(3)

330

332

330

332

331

171

COM

Terminal strips in the control panel

Max. voltage and

Max. current

:AC 250V,0.1A

Stop

indication

Operation

indication

Answer back

indication

Chilled/hot

water pump

CH 51

Cooling tower

fan

Ventilation

fan

Cooling water

pump

Note

1.Be sure to insert 23CO at the cooling water inlet side.

2.Be sure to wire the 52CH(interlock) between terminals 171 and 136.

3.Be sure to wire the 52CO(interlock) between terminals 171 and 135.

4.Be sure to wire the 52F(interlock) between terminals 171 and 138.

5.Be sure to wire the chilled/hot water pump control relay between terminals 302 and 303.

6.Be sure to wire the cooling water pump control relay between terminals 304 and 305.

7.Be sure to wire the ventilation fan between terminals 306 and 307.

Heating mode

indication

L :Indication lamp

51CH:Chilled/hot water pump overcurrent relay

51CO:Cooling water pump overcurrent relay

51CT :Cooling tower fan overcurrent relay

23CO:Cooling tower fan thermostat

Symbols

Start/Stop sequence of auxiliary equipments

Start

Start signal Machine operates

Chilled/hot water pump

operates and

ventilation fan operates

Stop air conditioners

Cooling water pump

operates and then

cooling tower fan

operates

Stop

Stop signal Diluted operation starts Chiller stops entirely

Cooling water pump

stops and cooling

tower fan stops

Operate air conditioners

L L

Combustion

indication

Chilled/hot water pump stops

and ventilation fan stops

300

301

302

303

304

305

306

307

308

309

314

315

316

317

320

321

322

323

324

325

326

327

335

334

Remote signal

indication

Cooling mode

indication

Alarm

indication

Buzzer signal

indication

36 37

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

Sequence of cooling operation (DE)

Figure 27 illustrates the typical operating sequence of a SANYO DE di-

rect-fired absorption chiller / heaters. The NE steam-fired unit does not

include the time delays associated with the burner blower, gas valve and

ignition functions.

With a chilled water setpoint of 6.7°C and with the chiller/heaters en-

abled, the start signal will be energized as the leaving chilled water tem-

perature rises to 7.7°C, 1.0°C above setpoint.

The burner initially completes a 36-seconds pre-purge operation that in-

cludes gas valve and supply air damper modulation to full open to insure

complete purging of the combustion chamber.

The No. 1 absorbent pump flow rate is changed during all stages of op-

eration to insure quicker start-up and optimum performance at part load.

As the cooling load is satisfied with the chiller/heaters at minimum load,

the unit will cycle off as the leaving chilled water temperature drops to

5.5°C, 1.5°C below setpoint.

When the microprocessor issues a stop signal, the generator heat source

will shut off and the dilution cycle will start. The dilution cycle will last

between 6 and 15 minutes depending on generator temperature. The

dilution cycle will consist of stopping of the refrigerant pump, absorbent

pump(s), and the cooling water pump in turn. The unit is capable of re-

starting during the dilution cycle.

Figure 27. Typical combustion time chart (cooling operation)

Figure 28 illustrates the typical operating sequence of a SANYO DE di-

rect-fired absorption chiller/heaters in heating mode.

With a hot water setpoint of 55°C, the start signal will be energized as the

leaving heating water temperature drops to 54°C, 1.0°C below setpoint.

The burner initially completes a 36-second pre-purge operation that in-

cludes gas valve and supply air damper modulation to full open to insure

complete purging of the combustion chamber. The No. 1 absorbent pump

flow rate is varied during all stages of operation to insure quicker start-up

and optimum performance at part load. On chiller/heaters with two ab-

sorbent pumps, the No. 2 pump remains off at all times during the heat-

ing mode.

As the heating load is satisfied with the chiller/heaters at minimum load,

the unit will cycle off as the leaving heating water temperature rises to

57°C, 2°C above setpoint.

When the microprocessor receives a stop signal, the generator heat

source will shut off and the dilution cycle will begin. The dilution cycle will

last approximately 5 minutes depending on generator temperature. The

dilution cycle consists of timed stopping of the No. 1 absorbent pump.

The chiller/heaters is capable of restarting during the dilution cycle.

Figure 28. Typical combustion time chart (heating operation)

Sequence of heating operation (DE)

Burner

Blower

OFF

Gas control

valve

Open

Sol. valve

Ignition gas

OFF

No. 2 ABSO

pump

OFF

Ignition ON

OFF

Refrigerant

pump

OFF

Dilution cycle

Approx. 6 -- 15 min.

Approx. 5 min.

Pre-purge

36 sec.

Post-purge

12 sec.

Control

area

Chiller stop

Stop signalStart signal

sec.

Sol. valve

Main gas

OFF

No. 1 ABSO

pump

OFF

Burner

Blower

OFF

Gas control

valve

Open

Sol. valve

Ignition gas

OFF

Ignition ON

OFF

Dilution cycle

Approx. 5 min.

Pre-purge

36 sec.

Post-purge

12 sec.

Control

area

Chiller stop

Stop signalStart signal

sec.

Sol. valve

Main gas

OFF

No. 1 ABSO

pump

OFF

38 39

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

The flue and stack must be heat-insulated and provided with a damper

and a condensate drain.

The flue should never be connected to an incinerator stack.

Locate the top end of the smoke stack at a sufficiently large distance

away from the cooling tower.

Figure 29. Typical flue and stack installation

Flue & stack connection

If the same stack is used for discharging exhaust from two systems, the

back flow of exhaust should be prevented from going into the one which

is out of operation.

Provide a draft regulator if fluctuations in static pressure are expected

inside the flue.

As illustrated, the steel stack should be lined on the interior surface as a

protection from corrosion due to exhaust gas.

Typical steel stack

Municipal codes in many areas may regulate large capacity chillers con-

suming oil or gas as fuel.

Such regulations should be strictly abided by.

Compliance with local regulation

NOTES :

Please design the draft pressure at flue flange of the chiller/heaters with

negative pressure 0 thru -29.4Pa (0 thru -3mmH2O).

Field supply

Condensate drain

Internal lining

Stack

Fire-proof mortar

Flue(Insulated)Draft regulator

Damper

Figure 30. Flue flange

BCDE F G H

N P Q

4-R 10

øT hole

NOTE :

1. Field supply

2. Steel material

Model

No.

Dimensions (mm)

15 110 110 110 --- --- --- ---

15 120 120 --- --- --- --- ---

20 100.5 100.5 100.5 --- --- --- ---

15 115 115 115 --- --- --- ---

15 139.5 139.5 139.5 --- --- --- ---

15 113 113 113 113 113 --- ---

15 119 120 120 120 120 120 120

DE-11

DE-12

DE-13

DE-14

DE-21

DE-22

DE-23

DE-24

DE-31

DE-32

DE-41

DE-42

DE-51

DE-52

DE-53

DE-61

DE-62

DE-63

DE-71

DE-72

DE-73

DE-81

DE-82

ABCDEFGHKLMNPQRST

345 360 38 130 130 --- 275 290 15

375 390 38 120 120 --- 375 390 15

422 442 38 117 118 --- 372 392 15

475 490 38 120 120 --- 375 390 15

573 588 38 137 137 -- 426 441 15

693 708 38 114.5 114.5 114.5 473 488 15

973 988 38 113 113 112 464 479 19

Table 7. Dimensional data

Flue flange dimensional data

40 41

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

The DE direct-fired chiller/heaters are equipped with a nozzle mix burner.

The burners are capable of firing with natural gas.

The burner is factory wired and tested prior to shipment. Manual modula-

tion from low fire to high fire during startup and routine maintenance pro-

cedures is provided by an operation switch in the chiller control panel.

Burner description

The burner maximizes flame retention at all capacity ranges of modula-

tion, thus ensuring long life and efficient operation.

The following drawing illustrates some of the common components found

in a typical gas train and unit installation. Individual jobs may vary de-

pending on chiller size and specific application.

Gas train

Figure 31. Typical burner and gas train

11 13 914

54 76

GAS

1 2 3

Air

Parts name.

Ball valve

Pressure gauge with push button valve

Gas filter

Low pressure governor

Gas pressure switch

Double solenoid valve (DMV)

Gas butterfly valve

Valve proving system (VPS)

Solenoid valve for ignition gas

Blower

Air pressure switch1

Air damper

Burner

symbol

Model No.

Gas burner

Natural gas

Model

Kerosene / light oil

Model

Natural gas & kerosene

Model

Natural gas & heavy oil

Model

Heavy oil

Model

Oil burner Dual fuel (combination) gas / oil burner

G1 ZMD --- --- RGL3 ZMD ---

G3 ZMD RL3 ZMD --- RGL3 ZMD ---

G5 ZMD RL3 ZMD --- RGL5 ZMD ---

G5 ZMD RL5 ZMD --- RGL5 ZMD ---

G7 ZMD RL5 ZMD RMS 7 ZMD RGL7 ZMD RGMS7 ZMD

G7 ZMD RL7 ZMD RMS 7 ZMD RGL7 ZMD RGMS7 ZMD

G8 ZMD RL7 ZMD RMS 8 ZMD RGL8 ZMD RGMS8 ZMD

G8 ZMD RL8 ZMD RMS 8 ZMD RGL8 ZMD RGMS8 ZMD

G9 ZMD RL8 ZMD RMS 9 ZMD RGL9 ZMD RGMS9 ZMD

G9 ZMD RL8 / 2 ZMD RMS 9 ZMD RGL9 ZMD RGMS9 ZMD

G9 ZMD RL8 / 2 ZMD RMS 10 ZMD RGL9 ZMD RGMS10 ZMD

G10 ZMD RL9 ZMD RMS 10 ZMD RGL10 ZMD RGMS10 ZMD

G10 ZMD RL10 ZMD RMS 11 ZMD RGL10 ZMD RGMS11 ZMD

G11 ZMD RL10 ZMD RMS 11 ZMD RGL11 ZMD RGMS11 ZMD

G11 ZMD RL11 ZMD RMS 50 / 2 ZMD RGL11 ZMD RGMS50 / 2 ZMD

DE-11

DE-12

DE-13

DE-14

DE-21

DE-22

DE-23

DE-24

DE-31

DE-32

DE-41

DE-42

DE-51

DE-52

DE-53

DE-61

DE-62

DE-63

DE-71

DE-72

DE-73

DE-81

DE-82

Table 9. Gas train

Table 8. Burner model

42 43

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

1. Equipment and parts outside the area surrounded by the broken line

are not supplied by SANYO.

2. Refer to the “Dimensions” for pipe connections and diameters.

3. Determine the locations of the chilled/hot water pumps, cooling

water pump and expansion tank in due consideration of the pump’s

hydrostatic head.

The chiller/heaters should not, as standard condition, be subject to a

pressure larger than 784kPa (8 kg/cm2G) at any water headers.

4. Concerning the temperature control of cooling water, refer to the

section of “control method of cooling water temperature”.

5. The chilled/hot and cooling water pumps should preferably be

provided exclusively for each chiller/heaters.

6. During heating operation, cooling water must be discharged.

7. Provide a thermometer and pressure gauge at the outlet and inlet of

the chilled/hot and cooling water pipe connections.

8. Provide an air vent valve in each of the chilled/hot and cooling water

lines at a point higher than each header.

9. Lay pipes from the cover of the evaporator, absorber and smoke

chamber to the drain ditch.

General remarks on piping work

10.Provide expansion tank in the chilled/hot water line.

11.Provide a bleeder in the cooling water line for control of water quality.

12.There should be a sufficiently large clearance for easy access to the

evaporator, absorber and condenser, to facilitate inspection and

cleaning work.

13.Provide heat insulation to the flue, which should be equipped with a

damper and condensate drain.

14.Do not connect the flue to the smoke stack of an incinerator.

15.When one flue is used for two or more chiller/heaters, a device

has to be provided to prevent the flow of exhaust gas into the one

which is out of operation.

16.The exhaust discharge end of the flue should be kept a sufficiently

large distance away from the cooling tower.

17.Provide a draft regulator if the static pressure inside the flue is

subject to fluctuations.

18.Fix the rupture disk on the chiller/heaters according to the manual of

rupture disk, if necessary.

19.All external water piping with JIS 10k welding flanges are to be

provided by the customer.

Typical piping diagram (DE)

Figure 32. Typical piping diagram

P T

Air conditioner Expansion tank

Chiller / hot

water pump

(secondary)

Chilled / hot

water pump

(primary)

By-pass valve

Supply

header Return

header

Cooling water pump To drain ditch

Fuel

Air vent

Flue Water supply

T: Thermometer

COOLING

TOWER

HC C

Tank

above

P: Pressure gauge F: Flow meter : Water pump : Strainer : Valve : Valve : Thermostat

In order to prevent freezing up of chilled water when the chiller/heaters

get a stop signal, continue the operation of the primary and secondary

chilled/hot water pumps and air conditioner during dilution cycle

operation of the chiller/heaters.

(about 15 minutes).

Cooling cycle schematic

Figure 33. Steam-fired chillers



Condenser



Low Temperature

Generator



Low Temperature

Heat Exchanger



Cooling Water



Chilled Water



Absorber



Evaporator



Cooling Water



High Temperature

Generator



Steam



SteamTrap



Steam Drain



High Temperature

Heat Exchanger



Heat Reclaimer



Refrigeration capacity 1.2

Heat 1.0

Chilled water

Steam

Liq. refrigerant Vap. refrigerant Cooling water

Heat sink 2.2

Dil. solution

Int. solution

Conc. solution

Steam-fired chillers

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Double effect steam-fired absorption chillers

Chilled water of 7°C is produced by high efficient double effect operation using steam of 784kPa or hot water of

190~200°C as its driving heat source. It is able to improve the balance of electricity and steam by means of effec-

tive use of turbine back pressure steam and surplus steam.

NE-11Unit

Model（TSA-NE-＊＊） NE-12 NE-13 NE-14 NE-21 NE-22 NE-23 NE-24 NE-31 NE-32



◆ NE Model Specification

Refrigeration

capacity

Chilled water system



Cooling water system



Kind of steam

Supply pressure

Steam consumption

Steam connection (JIS)

Drain connection (JIS)

Control valve conn. (JIS)

Overall dimentions

Length (L)

Width (W)

Height (H)

Tube removal

Weights

Operation weight

Max shipping weight

Total Shipping weight

Shipping method

Electric Power

Total electric current

Apparent power

Electric data



Flow rate

Pressure drop

Connection (JIS)

Holding water volume

Flow rate

Pressure drop

Connection (JIS)

Holding water volume

No.1 ABS pump

No.2 ABS pump

REF pump

Purge pump

PD cell heater

Control circuit

（USRT）

kW



m3/h

（mH2O）

kPa

inch

liter



m3/h

（mH2O）

kPa

inch

m3



（kg/cm

G）

kPa

kg/h

inch



mm



kgf



A

kVA



kW

A

kW

A

kW

A

kW

A

W

100 120 150 180 210 240 280 320 360 400

352 422 527 633 738 844 985 1,125 1,266 1,407

60.5 72.6 90.7 109 127 145 169 194 218 242

6.5 6.6 8.0 8.3 7.5 7.9 5.1 5.5 5.8 6.1

64 65 78 81 74 77 50 54 57 60

100 120 150 180 210 240 280 320 360 400

3.9 4.4 6.5 7.7 5.6 6.2 10.9 12.1 8.7 9.4

38 43 64 75 55 61 107 119 85 92

440 528 660 792 924 1,060 1,230 1,410 1,580 1,760

2 2-1/2 3

1 1-1/2

1-1/2 2

2,785 3,735 3,865 4,885 4,930

2,400 3,400 4,500

1,440 1,635 1,755

2,200 2,250 2,390

5 6 8

0.31 0.34 0.38 0.42 0.53 0.58 0.63 0.69 0.89 0.95

4,200 4,400 5,500 5,700 6,800 7,100 8,400 8,800 10,800 11,200

3,800 4,000 5,000 5,100 6,100 6,300 7,500 7,800 9,600 9,900

7.2 10.1 12.9

5.5 7.9 10.2

1.3 2.5 3.4

3.9 6.8 9.1

0.2 0.4

1.3 1.8

4 5 6

0.12 0.13 0.15 0.17 0.22 0.24 0.28 0.30 0.34 0.36

12 → 7℃（Fouling factor = 0.088m2℃ / kW（0.0001m2h℃ / kcal）・Max. working pressure 784kPa（8 kgf / cm2G））

32 → 37.5℃（Fouling factor = 0.088m2℃ / kW（0.0001m2h℃ / kcal）・Max. working pressure 784kPa（8 kgf / cm2G））



Saturated Steam

8.0

784

3 phase 380V 50Hz

1 section

0.4

1.1

300

＊＊＊

NE-52NE-51NE-42NE-41 NE-53 NE-61 NE-62 NE-63 NE-71 NE-72 NE-73 NE-81 NE-82

450 500 560 630 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500

1,582 1,758 1,969 2,215 2,461 2,813 3,165 3,516 3,868 4,220 4,571 4,923 5,274

272 302 339 381 423 484 544 605 665 726 786 847 907

5.2 5.5 4.6 6.2 8.1 5.7 7.6 9.9 6.2 7.8 9.6 7.8 9.5

51 54 45 61 79 56 74 97 61 76 94 76 93

0.46 0.48 0.65 0.71 0.77 0.99 1.06 1.13 1.41 1.51 1.61 1.83 1.94

10 12 14 16

1.11 1.19 1.87 2.01 2.14 2.79 2.97 3.15 3.67 3.90 4.11 4.51 4.76

1,980 2,200 2,470 2,780 3,080 3,520 3,960 4,400 4,840 5,280 5,720 6,160 6,600

13,200 13,600 18,800 20,400 21,900 26,600 28,500 30,500 36,200 38,200 40,500 43,600 46,100

11,600 11,900 16,300 17,700 19,000 22,800 24,500 26,200 24,600 25,800 27,300 29,100 30,700

12.9 22.6 28.0 32.0 40.7

10.2 18.2 22.6 25.9 33.0

9.1 13.4 15.0 19.0 24.0

3.4 3.7 5.5 7.5

0.4 0.75

1.1 1.9

38 76

1.8 3.0 3.7

5.4 9.1 12.0

4,940 5,185 5,725 6,225 5,840 6,335 6,865 6,430 6,960 7,460 6,960 7,460

4,500 4,600 5,100 5,600 5,200 5,700 6,200 6,000 6,500 7,000 6,500 7,000

3 4 5 6

1-1/2 2 2-1/2 3

2 2-1/2 3 4

1,975 2,300 2,500 3,000 3,200

2,600 2,900 3,330 3,450 3,650

Saturated Steam

8.0

784

1 section

0.4

1.8

300

3 phase 380V 50Hz

450 500 560 630 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500

10.3 11.2 7.1 9.4 12.1 8.5 11.2 14.4 9.4 11.8 14.5 12.2 14.7

101 110 70 92 119 83 110 141 92 116 142 120 144

8 10 12 14

12 → 7℃（Fouling factor = 0.088m

℃ / kW（0.0001m

h℃ / kcal）・Max. working pressure 784kPa（8 kgf / cm

G））

32 → 37.5℃（Fouling factor = 0.088m

℃ / kW（0.0001m

h℃ / kcal）・Max. working pressure 784kPa（8 kgf / cm

G））

＊＊＊

Specifications subject to change without notic

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

The heating cycle

Item

Temperature

Flow rate

Max. working pressure

Hydraulic test pressure

Fouling factor

Material of tubes

Water quality

Structure of water header

Manufacturing standard of water header

Temperature

Flow rate

Max. working pressure

Hydraulic test pressure

Fouling factor

Material of tubes

Water quality

Structure of water header

Manufacturing standard of water header

Supply pressure

Steam consumption rate

Max. working pressure

Hydraulic test pressure

Material of tubes and steam quality

Structure of water header

Manufacturing standard of water header

Electricity

Shipment

Safety functions

Capacity control

Parts

Painting

Indication lamps

Display

External terminals

(no-voltage normal open contact)

Structure

Parts

Electrical wiring and piping

Place

Ambient temperature

Ambient humidity

Atmosphere

Option

Outlet : 5°C~12°C

Temperature difference : 3°C~10°C

Changes depending on chilled water temperature

difference (min. flow rate : 50%)

981~1,961kPa (10kg/cm2G~20kg/cm2G)

Max. working press.✕1.5 times

No option

Inlet : 20.0°C~33.0°C

Within the water flow range of each model

981~1,961kPa (10kg/cm2G~20kg/cm2G)

Max. working press.✕1.5 times

Max. 0.196m2 °C/kW (0.0002m2h°C/kcal)

No option

392kPa~784kPa Max. allowable super-heat :10°C

(4kg/cm2G~8kg/cm2G)

Changes depending on the specifications

No option

TUV•ASME

Contact SANYO's representative

Multi-shipment

Cooling water flow switch

No option

Standard

Inlet : 12.0°C

Outlet : 7.0°C

0.605m3/h•RT

784kPa (8kg/cm2G)

Max. working press.+196kPa (2kg/cm2)

0.088m2 °C/kW (0.0001m2h°C/kcal)

Material : copper tube

Refer to JRA-GL02E-1994

Removal type

SANYO standard

Inlet : 32.0°C

Outlet : 37.5°C

1.0m3/h•RT

784kPa (8kg/cm2G)

Max. working press.+196kPa (2kg/cm2)

0.088m2 °C/kW (0.0001m2h°C/kcal)

Material : copper tube

Refer to JRA-GL02E-1994

Removal type

SANYO standard

784kPa (8kg/cm2G) Saturated steam

4.4kg/h•RT

981kPa (10kg/cm2G)

1,471kPa (15kg/cm2G)

Material : 9/1 copper nickel

Quality : refer to JIS B-8223

Removal type

Japanese pressure vessel code

3 phase 380V 50Hz

(Voltage regulation : within ± 10%)

(Frequency regulation : within ± 5%)

One-section

•Refrigerant temperature supervision

•Chilled water freezing protection

•Chilled water flow switch

•Cooling water temperature supervision

•H.T. generator temperature supervision

•H.T. generator pressure supervision

•H.T. generator solution level supervision

•Crystalization protection

•Motor protection

•Digital PID control by chilled water outlet temperature

•Inverter control of No.1 absorbent pump

Selected by SANYO

Munsell 5Y-7/1

•Operation : red

•Stop : green

•Equipment alarm : orange

•LCD

•Operation indication

•Stop indication

•Alarm indication

•Answer back indication

Indoor type

Selected by SANYO

Wiring : 600V grade polyvinyl chloride-insulated wire

Pipe : plicatube (flexible metal conduit)

Indoor

5°C~40°C

Relative humidity : Max. 90% (45°C)

Be sure the following are not present:

•Corrosive gas

•Explosive gas

•Poisonous gas

Installation condition

Control panel Control Steam Cooling water Chilled water

Scope of order (NE)Scope of supply (NE)

1.Absorption chiller

(1) Lower shell

•Evaporator and refrigerant dispersion tray

•Absorber and absorbent dispersion tray

•Eliminators

(2) Heat exchangers

•High temperature (H.T.) heat exchanger

•Low temperature (L.T.) heat exchanger

(3) Upper shell

•Low temperature (L.T.) generator

•Condenser

•Eliminators

(4) High temperature (H.T.) generator

(5) Heat reclaimer

(6) Pumps

•Absorbent pump(s) with isolating valves

•Refrigerant pump with isolating valves

•Purge pump

(7) Control panel

•CE marking (if requested according to the regulation).

(8) Steam control valve

•Control valve (electric type)

•Shutoff valve

(9) Locally mounted controls and electric parts

•Temperature sensor

•H.T. generator solution level electrodes

•H.T. generator pressure gauge

(10) Purge unit

•Storage tank

•Ejector and liquid trap

•Piping and various manual valves

•Palladium cell with heater

(11) Interconnecting piping and wiring

(12) Initial charge

•Absorbent (lithium bromide)

•Refrigerant

•Inhibitor

(13) Painting

•Main unit: rust preventive painted

•Control panel: finish painted

(14) Accessories

•Operation manual : One set

•Washer (for fixing foundation bolts) : One set

•Manometer : One piece

•Gasket and sealant for rupture disk : One set

(if requested according to the regulation).

2.Factory test

Tests below are carried out in the SANYO factory.

•Check of external dimensions

•Leak test (vacuum side)

•Hydraulic pressure test for water and steam headers

•Electric insulation resistance test

•Dielectric breakdown test

•Function test only for electric circuit and safety devices

•Performance test (one unit is tested for performance when

several units of the same model are ordered for one project)

3.Scope of supply of the purchaser

(1) Unloading, transportation, and insurance depend on the indi-

vidual sales contractor between your company and SANYO

group.

(2) Foundations with foundation bolts.

(3) External chilled/water, cooling water, steam and drain

piping work including various safety valves. isolating valves,

etc.

(4) Rupture disk, flange of rupture disk, bolts, nuts, piping work

and tank, etc, if necessary.

(5) External wiring and piping for the chillers including

necessary parts.

(6) Insulation for the chillers including necessary parts.

(7) Mating flanges, gaskets, bolts and nuts

•Steam inlet nozzle flange for H.T. generator steam header.

•Steam drain outlet nozzle flange.

•Inlet/outlet nozzle flanges for chilled water. (evaporator)

•Inlet/outlet nozzle flanges for cooling water. (absorber/condenser)

(8) Finish painting of the chillers.

(9) Cooling water inlet temperature control device.

(10) Furnishing air-piping* and electric wiring/piping of steam

control valve including necessary parts.

(11) Various temp./press. gauges for steam and water lines.

(12) Steam drain tank.

(13) Cooling tower(s), chilled water pump(s) and cooling water

pump(s) and its auxilialy accessaries.

(14) Electric power supply (specified value).

(15) Supply of chilled water, cooling water, steam and air* at rated

conditions.

(16) Necessary tools, workers and materials for installation and

site test operation.

(17)

After-sales service and periodical maintenance of the chillers.

(18) Any other item not specifically mentioned in the scope of

supply.

Note: *For electric-pneumatic valve only.

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Figure 34. NE-11 Thru NE-12

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1440(W)

2785(L)

2400

(Tube removal space either side)

2200

(H)

1810

1921

877

341

329

Rupture Disk

4 inch

1904

796

350

995

116

207

982

900

195

R700

1809

1974

1263

923

595

COW outlet

5 inch

COW inlet

5 inch

CHW outlet

4 inch

CHW in / out COW in / out

CHW inlet

4 inch

Steam inlet

2 inch

232

865

2084

364

200

180

1896

2253

2311

Wire connection ø33 hole

Figure 35. NE-13 Thru NE-14

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1440(W) 3735(L)

3400

(Tube removal space either side)

2200

(H)

1921

1810

877

341

1904

1196

350

995

207

300

982

900

195

R700

1809

1975

1263

923

595

COW outlet

5 inch

COW inlet

5 inch

CHW outlet

4 inch

COW out CHW in

CHW out COW in

CHW inlet

4 inch

Rupture Disk

4 inch

Drain outlet

4 inch

Steam inlet

2 inch

323

328

765

3104

364

200

180

2916

3096

3116

3264

Wire connection ø33 hole

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Figure 36. NE-21 Thru NE-22

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1635(W) 3865(L)

3400

(Tube removal space either side)

2250

(H)

2106

1840

1003

364

2089

1319

350

1168

205

350

1165

1100

175

406

R700

1964

2159

1346

1006

603

COW outlet

6 inch

COW inlet

6 inch

CHW outlet

5 inch

COW out CHW in

CHW out COW in

CHW inlet

5 inch

Rupture Disk

4 inch

Drain outlet

1 inch

Steam inlet

2-1/2 inch

343

438

765

3104

390

212

195

2916

3111

3128

3289

Wire connection ø33 hole

Figure 37. NE-23 Thru NE-24

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1635(W) 4885(L)

4500

(Tube removal space either side)

2250

(H)

2106

1840

1003

364

2089

1319

350

1168

205

350

1165

1100

175

406

R700

1980

2159

1333

1019

605

COW outlet

8 inch

COW inlet

8 inch

CHW outlet

6 inch

COW outCHW in / out COW in

CHW inlet

6 inch

Rupture Disk

4 inch

Drain outlet

1 inch

Steam inlet

2-1/2 inch

345

438

1215

4124

411

221

195

3936

4131

4309

Wire connection ø33 hole

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Figure 38. NE-31 Thru NE-32

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1755(W) 4930(L)

4500

(Tube removal space either side)

2390

(H)

2340

1910

1078

396

2323

1440

350

1256

218

396

1256

1200

205

458

R700

2198

2390

1476

1066

611

COW outlet

8 inch

COW inlet

8 inch

CHW outlet

6 inch

COW outCHW in / out COW in

CHW inlet

6 inch

Rupture Disk

4 inch

Drain outlet

1-1/2 inch

Steam inlet

3 inch

370

488

1190

3766

492

250

245

3886

4131

4336

Wire connection ø33 hole

Figure 39. NE-41 Thru NE-42

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1975(W) 4940(L)

4500

(Tube removal space either side)

2600

(H)

2531

2060

1132

538

2513

1480

350

1321

1250

220

411

335

1321

1250

220

407

R700

2383

2600

1613

1142

577

COW outlet

8 inch

COW inlet

8 inch

CHW outlet

6 inch

COW outCHW in / out COW in

CHW inlet

6 inch

Rupture Disk

4 inch

Drain outlet

1-1/2 inch

Steam inlet

3 inch

407

478

1190

3766

492

276

244

3886

4130

4354

Wire connection ø33 hole

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Model A B C D E L

NE-51 3836 3966 4206 4482 4600 5185

NE-52 4378 4508 4748 5024 5100 5725

NE-53 4876 5006 5246 5522 5600 6225

Figure 40. NE-51 Thru NE-53

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

2300(W)

(Tube removal space either side)

2900

(H)

2360

1665

1515

410

684

2855

2825

350

1321

1250

220

411

1750

1700

320

R700

2635

1760

1170

651

COW outlet

12 inch

COW inlet

12 inch

CHW outlet

8 inch

COW out CHW in / out COW in

CHW inlet

8 inch

Drain outlet

2 inch

Steam inlet

4 inch

421

1971

2930

560

265

240

130

Wire connection ø33 hole

Rupture Disk

6 inch

AB C D

Model A B C D E L

NE-61 4326 4466 4756 5076 5200 5840

NE-62 4826 4966 5256 5574 5700 6335

NE-63 5351 5491 5781 6099 6200 6865

Figure 41. NE-61 Thru NE-63

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 41 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

2500(W) L

(Tube removal space either side)

3330

(H)

2670

1785

1635

500

736

3286

3260

450

1870

1800

250

406

1870

1800

400

R700

3050

2025

1315

753

COW outlet

14 inch

COW inlet

14 inch

CHW outlet

10 inch

COW out CHW in / out COW in

CHW inlet

10 inch

Drain outlet

2-1/2 inch

Steam inlet

5 inch

463

2054

3260

622

310

295

140

Wire connection ø41 hole

Rupture Disk

6 inch

AB C D

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Model A B C D L

NE-71 4426 4566 5096 6000 6430

NE-72 4951 5091 5621 6500 6960

NE-73 5451 5591 6121 7000 7460

Figure 42. NE-71 Thru NE-73

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 41 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

3000(W)

(Tube removal space either side)

3450

(H)

2730

1892

2005

440

3370

2410

2200

189

1100

547

2180

1100

920

3395

R700

3050

1960

1335

735

450

COW outlet

16 inch

COW inlet

16 inch

CHW outlet

12 inch

CHW in / out COW out COW in

CHW inlet

12 inch

Drain outlet

3 inch

Steam inlet

6 inch

663

4044

990

786

710

140

3710

Wire connection ø41 hole

Rupture Disk

6 inch

AB C

Model A B C D L

NE-81 4951 5091 5621 6500 6960

NE-82 5451 5591 6121 7000 7460

Figure 43. NE-81 Thru NE-82

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 41 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

3200(W)

(Tube removal space either side)

3650

(H)

2900

1982

2185

425

3560

2610

2400

146

1200

555

2370

2600

1200

1006

3587

R700

3330

2040

1430

757

450

COW outlet

16 inch

COW inlet

16 inch

CHW outlet

14 inch

CHW in / out COW out COW out

CHW inlet

14 inch

Drain outlet

3 inch

Steam inlet

6 inch

690

4044

990

785

710

140

3710

Wire connection ø41 hole

Rupture Disk

6 inch

AB C

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Name Lamp color

Running(Operation) indication lamp Red

Stop indication lamp Green

Alarm indication lamp Orange

Remote / Local select button with lamp Red

Mode select button with lamp Red

Data display LED

symbol

Control panel (NE)Foundation dimensional data (NE)

Table 10. Dimensional data

Figure 45. NE-51 Thru NE-82

Model

No.

Weight (kg) Dimensions (mm)

4,200 2,100 2,100 1,896 —175 350 900 150 1,200 150 1,000

4,400 2,200 2,200 1,896 —175 350 900 150 1,200 150 1,000

5,500 2,700 2,750 2,916 —175 350 900 150 1,200 150 1,000

5,700 2,850 2,850 2,916 —175 350 900 150 1,200 150 1,000

6,800 3,400 3,400 2,916 —175 350 1,100 150 1,400 150 1,200

7,100 3,550 3,550 2,916 —175 350 1,100 150 1,400 150 1,200

8,400 4,200 4,200 3,939 —175 350 1,100 150 1,400 150 1,200

8,800 4,400 4,400 3,939 —175 350 1,100 150 1,400 150 1,200

10,800 5,400 5,400 3,886 —200 400 1,200 150 1,500 200 1,300

11,200 5,600 5,600 3,886 —200 400 1,200 150 1,500 200 1,300

13,200 6,600 6,600 3,886 —200 400 1,250 150 1,550 200 1,350

13,600 6,800 6,800 3,886 —200 400 1,250 150 1,550 200 1,350

18,800 9,400 9,400 3,966 130 190 510 1,700 180 2,060 250 1,800

20,400 10,200 10,200 4,508 130 190 510 1,700 180 2,060 250 1,800

21,900 10,950 10,950 5,006 130 190 510 1,700 180 2,060 250 1,800

26,600 13,300 13,300 4,466 140 210 560 1,800 180 2,160 300 1,900

28,500 14,250 14,250 4,966 140 210 560 1,800 180 2,160 300 1,900

30,500 15,250 15,250 5,491 140 210 560 1,800 180 2,160 300 1,900

36,200 18,100 18,100 4,566 140 210 560 2,200 180 2,560 300 2,300

38,200 19,100 19,100 5,091 140 210 560 2,200 180 2,560 300 2,300

40,500 20,250 20,250 5,591 140 210 560 2,200 180 2,560 300 2,300

43,600 21,800 21,800 5,091 140 210 560 2,400 180 2,760 300 2,500

46,100 23,050 23,050 5,591 140 210 560 2,400 180 2,760 300 2,500

NE-11

NE-12

NE-13

NE-14

NE-21

NE-22

NE-23

NE-24

NE-31

NE-32

NE-41

NE-42

NE-51

NE-52

NE-53

NE-61

NE-62

NE-63

NE-71

NE-72

NE-73

NE-81

NE-82

Oper.

AA BB A B C D E F G J K

150

E F

AA BB

150

AA BB

MODE

SETTING

STOP RUN

CHILLER

BUZZER STOP

STOP LOCAL

REMOTE

OPERATION

ALARM

REF PUMP

#1 ABS PUMP

#2 ABS PUMP

PURGE PUMP

H Generator temp 149.9°C

70100

7070

1200

700300

Remote control ø27

Steam shutoff valve ø21

Power supply

NE-11 thru NE-53 : ø33

NE-61 thru NE-82 : ø41

Steam control valve

NE-11 thru NE-53 : ø21

NE-61 thru NE-82 : ø27

Figure 44. NE-11 Thru NE-42

Figure 46. Control panel

NOTES :

1. The base of machine has ø50 hole for anchor bolt.

2. Anchor bolt should be fixed by shown detail drawing.

Washer should be welded with base.(Refer to Figure 21 page32)

3. There should be a drain ditch around the foundation.

4. The floor surface should be made as water proof for ease of

maintenance work.

5. Surface of foundation should be made flat.

6. Anchor bolts and nuts are supplied by customer.

Table 11. Indication lamp

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Field wiring (NE)

Figure 47. Typical electrical field connection diagram - Steam-fired (NE)

Chilled water

pump interlock

To power source

3 Ph,50/60Hz

380V, 400V, 415V, 440V

(52CH)

171

Cooling water

pump interlock

(52CO)

136

135

For emergency stop signal

(Those terminals are

connected by jumper)

Remove the jumper

before using

those terminals

The unit can be operated by the following five type signal.

(1)Non-voltage normal open contact(A) for start & stop (DC24V 10mA).

:Wiring the terminal 330 and 333.

(2)Non-voltage normal open contact(A) for start (DC24V 10mA).

:Wiring the terminal 330 and 333.

Non-voltage normal open contact(A) for stop (DC24V 10mA).

:Wiring the terminal 331 and 333.

(3)Non-voltage normal open contact(A) for start (DC24V 10mA).

:Wiring the terminal 330 and 333.

Non-voltage normal close contact(B) for stop (DC24V 10mA).

:Wiring the terminal 331 and 333.

(4)Continuous signal of DC/AC 24V for start & stop.

:Wiring the terminal 330 and 332.(Those terminals are non-polarity.)

(5)Pulse signal of DC/AC 24V for start.

:Wiring the terminal 330 and 332.(Those terminals are non-polarity.)

Signal of DC/AC 24V for stop.

:Wiring the terminal 331 and 332.(Those terminals are non-polarity.)

Remote signal

330

DC/AC 24VDC/AC 24V

Terminal strips in the control panel

(4)(1) (5)

333

332

171 171

330

(2)

331

333

332

331

333

(3)

330

332

330

332

331

171

COM

For message signal

Terminal strips in the control panel

Max. voltage and

Max. current

:AC 250V,0.1A

Stop

indication

Operation

indication

Answer back

indication

Chilled

water pump

CH 51

Cooling tower

fan

Cooling water

pump

Note

1.Be sure to insert 23CO at the cooling water inlet side.

2.Be sure to wire the 52CH(interlock) between terminals 171 and 136.

3.Be sure to wire the 52CO(interlock) between terminals 171 and 135.

4.Be sure to wire the chilled water pump control relay between terminals 302 and 303

5.Be sure to wire the cooling water pump control relay between terminals 304 and 305.

L :Indication lamp

51CH:Chilled water pump overcurrent relay

51CO:Cooling water pump overcurrent relay

51CT :Cooling tower fan overcurrent relay

23CO:Cooling tower fan thermostat

Symbols

Start/Stop sequence of auxiliary equipments

Start

Start signal

Machine operates

Chilled water pump operates

Stop air conditioners

Cooling water pump

operates and then

cooling tower fan

operates

Stop

Stop signal

Diluted operation start Chiller stops entirely

Cooling water pump

stops and cooling

tower fan stops

Operate air conditioners

Chilled water pump stops

300

301

302

303

304

305

306

307

308

309

320

321

322

323

324

325

326

327

Remote signal

indication

Alarm

indication

Buzzer signal

indication

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

1. Work outside the area surrounded by this line shall be under-

taken at the expense of the owner.

2. Refer to the Dimensions diagrams and specification tables for pipe

connections and diameters.

3. Standard supply steam press. Is 784 kPa (8 kg/cm2G). A reducing

valve and safety valve which blows at 981kPa (10 kg/cm2G) should

be located near the machine as in above diagram if the supply pres

sure is higher than 784kPa (8 kg/cm2G). A pipe should be extended

from this safety valve to release excess steam outdoors.

4. Even if a reducing valve is not required, a strainer, pressure gauge

and drain trap should be provided for each machine near the steam

inlet.

5. The back pressure in the steam drain line should be limited to less

than 49Pa (5 mH2O).

6. Determine the locations of the chilled water pumps and cooling water

pumps in due consideration of the pump’s hydrostatic head.

As standard condition, the machine should not be subject to a

pressure larger than 784kPa (8 kg/cm2G) at any water headers.

7. Concerning the temperature control of cooling water, refer to the

section of “control method of cooling water temperature”.

8. Provide a thermometer and pressure gauge at the outlet and inlet of

cooling water and chilled water.

General remarks on piping-laying work

9. Provide an air vent valve in each of the chilled and cooling water lines

at a point higher than the header for chilled water and cooling water.

10.Lay pipes from the cover of the evaporator and absorber to the drain

ditch.

11.Provide a bleeder in the cooling water line for control of water quality.

12.All external water piping with JIS 10k welding flanges are to be

provided by the customer.

13.Be sure to provide a shut-off valve to prevent the steam flow into the

chiller during shut-down.

In case two or more chillers are installed, provide an automatic

shut-off valve.

14.Be sure to design the location of cooling tower to prevent

contamination of cooling water by exhaust gas from flues.

15.Fix the rupture disk on the chiller according to the manual of rupture

disk, if necessary.

16.The chilled and cooling water pumps should preferably be provided

exclusively for each chillers.

17.Provide expansion tank in the chilled water line.

18.There should be a sufficiently large clearance for easy access to the

evaporator, absorber and condenser, to facilitate inspection and

cleaning work.

HC C

By-pass

valve

Supply

header Return

heater

Air conditioner

Chilled water

pump

(primary)

Chilled water pump

(secondary)

Steam

control valve

To boiler

Cooling

water pump

Cooling water

thermostat

Water

supply

Safety valve

Bleeder

valve

Bypass

valve

To drain ditch

Reducing valve

Main steam piping

Check valve

Tank

about

1m3

Steam

shutoff

valve

In order to prevent freezing up of chilled water during

diluting operation of chiller, continue the operation of

the chilled water pumps and air conditioner until the

diluting operation is completed.

T: Thermometer P: Pressure gauge F: Flow meter : Water pump : Strainer : Valve : Valve : Thermostat

Typical piping diagram-laying (NE)

Figure 48. Typical piping diagram

Cooling cycle schematic

Figure 49. Hot water-fired chillers

Condenser



Generator



Absorber

Heat Exchanger



Cooling Water



Chilled Water



Evaporator

Cooling Water

Hot Water

Heat 1.0

Liq. refrigerant Vap. refrigerant Cooling water Chilled water Hot water

Refrigeration capacity 0.7

Heat sink 1.7

Dil. solutionConc. solution

Hot water-fired chillers

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Hot water-fired absorption chillers

Chilled water of 8°C can be produced using waste hot water of 80°C to 95°C from gas engine etc. It is a chiller

driven by waste hot water which temperature is low. Waste hot water and unused energy can be effectively used

and it is suitable for combined heat and power system.

LE-01Unit

Model（TSA-LE-＊＊） LE-02 LE-03 LE-11 LE-12 LE-13 LE-14

◆ LE Model Specification

Refrigeration

Capacity

Chilled water system



Cooling water system



Hot water system



3 way valve pressure drop



Overall dimentions

Length (L)

Width (W)

Height (H)

Tube removal

Weights

Operating LE/NE

Shipping weight

Shipping method

Electric Power

Total electric current

Apparent power

Electric data



Flow rate

Pressure drop

Connection (JIS)

Holding water volume

Flow rate

Pressure drop

Connection (JIS)

Holding water volume

Flow rate

Pressure drop

Connection (JIS)

Holding water volume

Connection (JIS)

ABS pump

REF pump

Purge pump

PD cell heater

Control circuit

（USRT）



kW



/h

（mH

O）

kPa

inch



/h

（mH

O）

kPa

inch

3



kgf/s

（mH

O）

kPa

inch

3

（mH

O）

kpa

inch



mm



kgf



A

kVA



kW

A

kW

A

kW

A

W

30 40 50 75 90 110 135

105 141 176 264 316 387 475

18.1 24.2 30.2 45.4 54.4 66.5 81.6

7.2 9.2 7.3 7.0 7.6 4.5 4.9

36.5 48.6 60.8 91.1 109 134 164

5.2 5.8 10.1 8.9 9.5 5.2 6.4

51 57 99 87 93 51 63

3 5

2-1/2 4

0.06 0.07 0.08 0.11 0.13 0.15 0.17

0.14 0.17 0.20 0.34 0.37 0.43 0.47

71 90 72 69 74 44 48

2-1/2 2-1/2 3 4

13 → 8℃（Fouling factor = 0.088m

℃ / kW（0.0001m

h℃ / kcal）・Max. working pressure 784kPa（8 kgf / cm

G））

31 → 37℃（Fouling factor = 0.088m

℃ / kW（0.0001m

h℃ / kcal）・Max. working pressure 784kPa（8 kgf / cm

G））

88 → 83℃（Fouling factor = 0.088m

℃ / kW（0.0001m

h℃ / kcal）・Max. working pressure 784kPa（8 kgf / cm

G））

1 section

3 phase 380V 50Hz

7.0

5.4

1.1

3.7

0.2

1.3

0.4

1.1

300

Note 1） Electric type 3way valve for LE-01 ∼ LE-24

Electric pneumatic type 3way valve for LE-31 ∼ LE-53（Required operation air : 392kPa（4.0kg / cm

G））

7.11 9.47 11.8 17.8 21.3 26.0 31.9

4.6 5.6 1.9 1.5 1.7 4.0 4.6

45 55 19 15 17 39 45

0.04 0.05 0.06 0.09 0.10 0.12 0.13

3.9 3.3 5.2 5.8 8.3 3.7 5.5

38 32 51 57 81 36 54

2,300 2,400 2,800 3,900 4,100 5,100 5,400

2,000 2,100 2,500 3,400 3,500 4,400 4,600

2,210 2,710 3,720

1,110 1,295

1,980 2,225 

1,900 2,400 3,400

2 2-1/2 3 4

LE-31LE-24LE-23LE-22LE-21 LE-32 LE-41 LE-42 LE-51 LE-52 LE-53

155 180 210 240 270 300 335 375 420 470 525

545 633 738 844 949 1,055 1,178 1,319 1,477 1,653 1,846

188 219 255 292 328 365 407 456 510 571 638

5.4 6.1 11.1 12.1 9.1 9.5 10.0 11.0 7.0 9.3 12.1

53 60 109 119 89 93 98 108 69 91 119

36.7 42.5 49.7 56.7 63.9 71.1 79.2 88.9 99.4 111 124

4.1 4.4 2.0 2.2 1.8 2.0 1.6 1.7 1.8 2.3 3.0

40 43 20 22 18 20 16 17 18 23 29

0.17 0.18 0.20 0.22 0.27 0.29 0.34 0.36 0.44 0.48 0.51

3.3 4.4 6.0 7.9 6.0 7.4 9.2 11.6 4.6 5.8 7.2

36 43 59 77 59 73 90 114 45 47 71

6,500 6,900 8,000 8,500 10,300 10,800 12,500 13,000 17,700 19,200 20,600

5,500 5,800 6,800 7,100 8,700 9,100 10,400 10,800 14,600 15,900 17,100

9.7 10.2 12.5

7.6 8.0 9.9

2.2 3.0

6.4 8.7

0.2 0.4

1.3 1.8

0.4

1.1

2,395 2,645 2,905 3,230

3,820 4,850 4,980 5,060 5,200 5,740 6,240

3,400 4,500 4,600 5,200 5,700

1,445 1,515 1,615 1,950

5 6 8

0.60 0.65 0.71 0.79 0.99 1.06 1.25 1.35 2.02 2.18 2.31

6 8 10 12

0.22 0.24 0.27 0.30 0.33 0.35 0.45 0.48 0.65 0.71 0.76

5 6 8

93.7 109 127 145 163 181 203 227 254 284 318

4.3 4.7 9.2 9.6 9.5 10.0 9.8 9.7 7.8 3.7 4.9

42 46 90 94 93 98 96 95 76 36 48

13 → 8℃（Fouling factor = 0.088m

℃ / kW（0.0001m

h℃ / kcal）・Max. working pressure 784kPa（8 kgf / cm

G））

31 → 37℃（Fouling factor = 0.088m

℃ / kW（0.0001m

h℃ / kcal）・Max. working pressure 784kPa（8 kgf / cm

G））

88 → 83℃（Fouling factor = 0.088m

℃ / kW（0.0001m

h℃ / kcal）・Max. working pressure 784kPa（8 kgf / cm

G））

3 phase 380V 50Hz

1 section

300

Specifications subject to change without notic

0 102030405060708090100

100

Temperature of absorbent (°C)

Temperature of refrigerant (°C)

Pressure(torr)

40%

50%

55%

70%

45%

60%

65%

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

The heating cycle

Item

Temperature

Flow rate

Max. working pressure

Hydraulic test pressure

Fouling factor

Material of tube

Water quality

Structure of water header

Manufacturing standard of water header

Temperature

Flow rate

Max. working pressure

Hydraulic test pressure

Fouling factor

Material of tubes

Water quality

Structure of water header

Manufacturing standard of water header

Temperature

Flow rate

Max. working pressure

Hydraulic test pressure

Material of tubes

Water quality

Structure of water header

Manufacturing standard of water header

Electricity

Shipment

Safety functions

Capacity control

Parts

Painting

Indication lamps

Display

External terminals

(no-voltage normal open contact)

Structure

Parts

Electrical wiring and piping

Place

Ambient temperature

Ambient humidity

Atmosphere

Option

Outlet : 6°C~12°C

Temperature difference : 3°C~10°C

Changes depending on chilled water temperature

difference (min. flow rate : 50%)

981~1,961kPa (10 ~ 20kg/cm2G)

Max. working press.✕1.5 times

0.196m2 °C/kW (0.0002m2h°C/kcal)

No option

Inlet : 20.0°C~33.0°C

Within the water flow range of each model

981~1,961kPa (10 ~ 20kg/cm2G)

Max. working press.✕1.5 times

0.196m2 °C/kW (0.0002m2h°C/kcal)

No option

Intel : 80°C~95°C

Within the water flow range of each model

No option

Contact SANYO's representative

Multi-shipment

Cooling water flow switch

No option

Standard

Inlet : 13.0°C

Outlet :8.0°C

0.605m3/h•RT

784kPa (8kg/cm2G)

Max. working press. +196kPa (2kg / cm2)

0.088m2 °C/kW (0.0001m2h°C/kcal)

Copper tube

Refer to JRA-GL02E-1994

Removal type

SANYO standard

Inlet : 31°C

Outlet : 37°C

1.215m3/h•RT

784kPa (8kg/cm2G)

Max. working press. +196kPa (2kg / cm2)

0.088m2 °C/kW (0.0001m2h°C/kcal)

Copper tube

Refer to JRA-GL02E-1994

Removal type

SANYO standard

Inlet : 88°C

Outlet : 83°C

1.215m3/h•RT

784kPa (8kg/cm2G)

1,471kPa (15kg/cm2G)

Material : Copper

Refer to JRA-GL02E-1994

Removal type

Japanese pressure vessel code

3 phase 380V 50Hz

(Voltage regulation : within ± 10%)

(Frequency regulation : within ± 5%)

One-section

•Refrigerant temperature supervision

•Chilled water freeze protection

•Chilled water floe switch

•Cooling water temperature supervision

•Generator temperature supervision

•Crystallization protection

•Motor protection

•Digital PID control by chilled water outlet temperature

•Inverter control of No.1 absorbent pump

Selected by SANYO

Munsell 5Y-7/1

•Operation : red

•Stop : green

•Equipment alarm : orange

•LCD

•Operation indication

•Stop indication

•Alarm indication

•Answer back indication

Indoor type

Selected by SANYO

Wiring : 600V grade polyvinyl chloride-insulated wire

Pipe : plicatube (flexible metal conduit)

Indoor

5°C~40°C

Relative humidity : Max. 90% (45°C)

Be sure the following are not present:

•Corrosive gas

•Explosive gas

•Poisonous gas

Installation condition

Control panel Control Hot water Cooling water Chilled water

Scope of order (LE)Scope of supply (LE)

1.Absorption chiller

(1)Lower shell

•Evaporator and refrigerant dispersion tray

•Absorber and absorbent dispersion tray

•Eliminators

(2)Heat exchangers

(3)Upper shell

•Generator

•Condenser

•Eliminators

(4)Pumps

•Absorbent pump(s) with isolating valves

•Refrigerant pump with isolating valves

•Purge pump

(5)Control panel

•CE marking (if requested according to the regulation).

(6)Hot water control valve

(7)Locally mounted controls and electric parts

•Temperature sensor

(8)Purge unit

•Purge tank

•Ejector and liquid trap

•Piping and various manual valves

•Palladium cell with heater

(9)Interconnecting piping and wiring

(10) Initial charge

•Absorbent (lithium bromide)

•Refrigerant

•Inhibitor

(11) Painting

•Main unit: Rust preventive paint

•Control panel: Finish paint

(14) Accessories

•Operation manual : One set

•Washer (for fixing foundation bolts) : One set

•Manometer : One piece

•Gasket and sealant for rupture disk : One set

(if requested according to the regulation).

2.Factory test

Tests below are carried out in the SANYO factory.

•Check of external dimensions

•Leak test (vacuum side)

•Hydraulic test for water headers

•Electric insulation resistance test

•Dielectric breakdown test

•Function test only for electric circuit and safety devices

•Performance test of one section shipping unit.

(one unit is tested when several units of the same model are

ordered for one project)

3.Scope of supply of the purchaser

(1)Unloading, transportation, and insurance depend on the

individual sales contractor between your company and SANYO

group.

(2)Foundations with foundation bolts.

(3)External chilled water, cooling water, and hot water piping

work including various safety valves. isolating valves, etc.

(4)Rupture disk, flange of rupture disk, bolts, nuts, piping work

and tank, etc, if necessary.

(5)External wiring and piping for the chillers including

necessary parts.

(6)Insulation for the chillers including necessary parts.

(7)Mating flanges, gaskets, bolts and nuts

•Inlet/outlet nozzle flanges for chilled water. (evaporator)

•Inlet/outlet nozzle flanges for cooling water. (absorber/condenser).

•Inlet/outlet nozzle flanges for hot water. (generator)

(8)Finish painting of the chiller.

(9)Cooling water inlet temperature control device.

(10) Furnishing electric wiring/piping of hot water control valve

including necessary parts.

(11) Various temp./press. gauges for water lines.

(12) Cooling tower(s), chilled water pump(s) , cooling water

pump(s) and hot water pump(s) and it’s auxiliary accessaries.

(13) Electric power supply (specified value).

(14) Supply of chilled water, cooling water and hot water at rated

conditions.

(15) Necessary tools, workers and materials for installation and

site test operation.

(16)

After-sales service and periodical maintenance of the chillers.

(17) Any other item not specifically mentioned in the scope of

supply.

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Model A B C D L K

LE-01 1426 1566 1591 1687 2210 1900

LE-02 1426 1566 1591 1687 2210 1900

LE-03 1926 2066 2091 2187 2710 2400

Figure 50. LE-01 Thru LE-03

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1110(W)

(Tube removal space either side)

1980

(H)

750

136

1840

715

300

860

160

800

630

R500

1958

1880

1770

1480

1150

860

510

HTW outlet

2-1/2 inch

HTW outlet

COW outlet

3 inch

COW inlet

3 inch

HTW inlet

2-1/2 inch

CHW outlet

2-1/2 inch

CHW inlet

2-1/2 inch

HTW outlet

CHW inlet / outlet

COW inlet / outlet

HTW inlet

165

900

230

Wire connection ø33 hole

Rupture Disk

4 inch

BCD

Figure 51. LE-11 Thru LE-12

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1295(W) 2710(L)

2400

(Tube removal space either side)

2225

(H)

780

2085

785

300

910

882

200

800

640

145

R500

2203

2125

1995

1611

1275

911

595

HTW outlet

4 inch

HTW outlet

COW outlet

5 inch

COW inlet

5 inch

HTW inlet

4 inch

CHW outlet

3 inch

CHW inlet

3 inch

HTW outlet

CHW outlet

COW inlet / outlet HTW inlet

CTW inlet

200

2076

2096

2249

735

1896

415

Wire connection ø33 hole

Rupture Disk

4 inch

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Figure 52. LE-13 Thru LE-14

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1295(W) 3720(L)

2225

(H)

780

2085

785

300

910

882

200

800

640

145

R500

2203

2125

1995

1611

1275

911

595

HTW outlet

4 inch

HTW outlet

COW outlet

5 inch

COW inlet

5 inch

HTW inlet

4 inch

CHW outlet

3 inch

CHW inlet

3 inch

CHW outlet CHW inlet

COW outlet

HTW outlet

HTW inlet

COW inlet

200

180

353

3096

3116

735

2916

415

Wire connection ø33 hole

Rupture Disk

4 inch

3400

(Tube removal space either side)

Model A B C D L K

LE-21 735 2916 3109 3128 3820 3400

LE-22 735 2916 3109 3128 3820 3400

LE-23 1185 3936 4129 4148 4850 4500

LE-24 1185 3936 4129 4148 4850 4500

Figure 53. LE-21 Thru LE-24

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1455(W) L

2395

(H)

926

2255

835

300

1090

1065

251

1000

740

125

R500

2373

2295

2135

1724

1346

1006

605

HTW outlet

5 inch

HTW outlet

COW outlet

6 inch

COW inlet

6 inch

HTW inlet

5 inch

CHW outlet

5 inch

CHW inlet

5 inch

HTW outlet

CHW outlet

COW outlet

COW inlet

HTW inlet

195

212

403

415

Wire connection ø33 hole

Rupture Disk

4 inch

(Tube removal space either side)

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Figure 54. LE-31 Thru LE-32

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1515(W) 4980(L)

2645(H)

976

2500

815

300

1170

1156

250

1100

790

105

R500

2623

2545

2365

1918

1476

1066

611

HTW outlet

6 inch

HTW outlet

COW outlet

8 inch

COW inlet

8 inch

HTW inlet

6 inch

CHW outlet

6 inch

CHW inlet

6 inch

HTW outlet

CHW outlet COW outlet

COW inlet

HTW inlet

CHW inlet

244

4130

4136

250

479

390

1160

3886

Wire connection ø33 hole

Rupture Disk

4 inch

4500

(Tube removal space either side)

Figure 55. LE-41 Thru LE-42

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1615(W) 5060(L)

2905

(H)

1036

2750

840

300

1255

1221

274

1150

815

120

R500

2883

2805

2595

2090

1613

1142

577

HTW outlet

8 inch

HTW outlet

COW outlet

10 inch

COW inlet

10 inch

HTW inlet

8 inch

CHW outlet

8 inch

CHW inlet

8 inch

HTW outlet

CHW outlet COW outlet

COW inlet HTW inlet

CHW inlet

244

4130

4162

276

530

390

1160

3886

Wire connection ø33 hole

Rupture Disk

4 inch

4500

(Tube removal space either side)

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Figure 56. LE-51

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1950(W) 5200(L)

3230

(H)

1340

173

3075

905

300

1701

450

1600

1040

R500

3208

3130

2897

2304

1760

1170

651

HTW outlet

8 inch

HTW outlet

COW outlet

12 inch

COW inlet

12 inch

HTW inlet

8 inch

CHW outlet

8 inch

CHW inlet

8 inch

HTW outlet CHW outlet

COW outlet

COW inlet

HTW inlet

CHW inlet

4206

4211

240

550

0130

430

1150

3886

3966

Wire connection ø33 hole

Rupture Disk

4 inch

4600

(Tube removal space either side)

Model A B C L K

LE-52 4378 4508 4753 5740 5200

LE-53 4876 5006 5251 6240 5700

Figure 57. LE-52 Thru LE-53

NOTES

1. Dimensions (L), (W), (H) are for the unit with rupture disk.

The dimensions are changed if additional parts are added.

2. indicates the position of anchor bolts.

3. All external water piping with welded JIS 10K flanges are to be provided by

the customer.

4. indicates the position of the power supply connection on control panel.

(diameter 33 mm)

5. Service space:

Longitudinal distance –1000 mm

Top –200 mm

Others –500 mm

6. Regarding fuel connection diameter and position, refer to specifications.

1950(W)

3230

(H)

1340

173

3075

905

300

1701

450

1600

1040

R500

3208

3130

2897

2304

1760

1170

651

HTW outlet

8 inch

HTW outlet

COW outlet

12 inch

COW inlet

12 inch

HTW inlet

8 inch

CHW outlet

8 inch

CHW inlet

8 inch

HTW outlet CHW inlet / outlet

COW inlet

COW outlet

HTW inlet

240

550

1150

130

430

Wire connection ø33 hole

Rupture Disk

4 inch

(Tube removal space either side)

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Generator temp 69.9°C

MODE

STOP RUN

CHILLER

BUZZER STOP

STOP LOCAL

REMOTE

OPERATION

ALARM

REF PUMP

ABS PUMP

PURGE PUMP

SETTING

Name Lamp color

Running(Operation) indication lamp Red

Stop indication lamp Green

Alarm indication lamp Orange

Remote / Local select button with lamp Red

Mode select button with lamp Red

Data display LCD

symbol



Control panel (LE)

Hot water control valve

ø21 (LE-01 thru LE-12)

ø27 (LE-13 thru LE-24)

ø21 (LE-31 thru LE-53)

Power supply ø33

Remote control ø27

500

300 30

1400

Table 13. Indication lamp

Foundation dimensional data (LE)

Figure 58. LE-01 Thru 53

150

E F

AA BB

Model

No.

Weight (kg) Dimensions (mm)

2,300 1,150 1,150 1,426 —113 226 800 100 1,000 125 900

2,400 1,200 1,200 1,426 —113 226 800 100 1,000 125 900

2,800 1,400 1,400 1,926 —113 226 800 100 1,000 125 900

3,900 1,950 1,950 1,896 —125 250 800 100 1,000 150 900

4,100 2,050 2,050 1,896 —125 250 800 100 1,000 150 900

5,100 2,550 2,550 2,916 —125 250 800 100 1,000 150 900

5,400 2,700 2,700 2,916 —125 250 800 100 1,000 150 900

6,500 3,250 3,250 2,916 —125 250 1,000 100 1,200 150 1,100

6,900 3,450 3,450 2,916 —125 250 1,000 100 1,200 150 1,100

8,000 4,000 4,000 3,936 —125 250 1,000 100 1,200 150 1,100

8,500 4,250 4,250 3,936 —125 250 1,000 100 1,200 150 1,100

10,300 5,150 5,150 3,886 —150 300 1,100 100 1,300 200 1,200

10,800 5,400 5,400 3,886 —150 300 1,100 100 1,300 200 1,200

12,500 6,250 6,250 3,886 —150 300 1,150 100 1,350 200 1,250

13,000 6,500 6,500 3,886 —150 300 1,150 100 1,350 200 1,250

17,700 8,850 8,850 3,966 130 110 350 1,600 100 1,800 250 1,700

19,200 9,600 9,600 4,508 130 110 350 1,600 100 1,800 250 1,700

20,600 10,300 10,300 5,006 130 110 350 1,600 100 1,800 250 1,700

LE-01

LE-02

LE-03

LE-11

LE-12

LE-13

LE-14

LE-21

LE-22

LE-23

LE-24

LE-31

LE-32

LE-41

LE-42

LE-51

LE-52

LE-53

Oper.

AA BB A B C D E F G J K

Table 12. Dimensional data

Figure 59. Control panel

NOTES :

1. The base of machine has ø50 hole for anchor bolt.

2. Anchor bolt should be fixed by shown detail drawing.

Washer should be welded with base.(Refer to Figure 21 page32)

3. There should be a drain ditch around the foundation.

4. The floor surface should be made as water proof for ease of

maintenance work.

5. Surface of foundation should be made flat.

6. Anchor bolts and nuts are supplied by customer.

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Field wiring (LE)

Figure 60. Typical electrical field connection diagram - Hot water-fired (LE)

The unit can be operated by the following five type signal.

(1)Non-voltage normal open contact(A) for start & stop (DC24V 10mA).

:Wiring the terminal 330 and 333.

(2)Non-voltage normal open contact(A) for start (DC24V 10mA).

:Wiring the terminal 330 and 333.

Non-voltage normal open contact(A) for stop (DC24V 10mA).

:Wiring the terminal 331 and 333.

(3)Non-voltage normal open contact(A) for start (DC24V 10mA).

:Wiring the terminal 330 and 333.

Non-voltage normal close contact(B) for stop (DC24V 10mA).

:Wiring the terminal 331 and 333.

(4)Continuous signal of DC/AC 24V for start & stop.

:Wiring the terminal 330 and 332.(Those terminals are non-polarity.)

(5)Pulse signal of DC/AC 24V for start.

:Wiring the terminal 330 and 332.(Those terminals are non-polarity.)

Signal of DC/AC 24V for stop.

:Wiring the terminal 331 and 332.(Those terminals are non-polarity.)

Remote signal

Terminal strips in the control panel

Chilled water

pump interlock

To power source

3 Ph, 50/60Hz

380V, 400V, 415V, 440V

(52CH)

171

Cooling water

pump interlock (52CO)

330

DC/AC 24VDC/AC 24V

(4)(1)

136

135

For emergency stop signal

(Those terminals are

connected by jumper)

Remove the jumper

before using

those terminals

333

332

171 171

330

(2)

331

333

332

331

333

(3)

330

332

330

332

331

171

COM

For message signal

Note

1.Be sure to insert 23CO at the cooling water inlet side.

2.Be sure to wire the 52CH(interlock) between terminals 171 and 136.

3.Be sure to wire the 52CO(interlock) between terminals 171 and 135.

4.Be sure to wire the chilled water pump control relay between terminals 302 and 303.

5.Be sure to wire the cooling water pump control relay between terminals 304 and 305.

6.Be sure to wire the hot water pump control relay between terminals 345 and 346.

L :Indication lamp

51CH:Chilled water pump overcurrent relay

51CO:Cooling water pump overcurrent relay

51CT :Cooling tower fan overcurrent relay

51H :Hot water pump overcurrent relay

23CO:Cooling tower fan thermostat

Symbols

Terminal strips in the control panel

Max. voltage and

Max. current

:AC 250V,0.1A

Stop

indication

Operation

indication

Answer back

indication

CT 52

Chilled

water pump

CH 51

Cooling tower

fan

Cooling water

pump

Start/Stop sequence of auxiliary equipments

Start

Start signal Machine operates

Chilled water pump operates

Cooling water pump

operates and then

cooling tower fan

operates

Stop

Stop signal Diluted operation start Chiller stops entirely

Cooling water pump

stops and cooling

tower fan stops

Chilled water pump stops

300

301

302

303

304

305

306

307

308

309

320

321

322

323

324

325

326

327

345

346

Remote signal

indication

Alarm

indication

Buzzer signal

indication

Hot water

pump

Operate air conditioners

Stop air conditioners

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

1. Work outside the area surrounded by this line shall be under-

taken at the expense of the owner.

2. Refer to the Dimensions diagrams and specification tables for pipe

connections and diameters.

3. Determine the locations of the chilled, cooling and hot water pump in

due consideration of the pump’s hydrostatic head.

As standard condition, the machine should not be subject to a

pressure larger than 8 kg/cm2G. at any water headers.

4. Concerning the temperature control of cooling water, refer to the

section of ”control method of cooling water temperature”.

5. Provide a thermometer and a pressure gauge at the outlet and inlet

of cooling water temperature.

General remarks on piping work

6. Provide an air vent valve in each of the chilled, cooling and hot water

lines at a point higher than the header for chilled, cooling and hot

waters.

7. Lay pipes from the cover of the evaporator, absorber and generator

to drain ditch.

8. Provide a bleeder in the cooling water line for control of water quality.

9. All external water piping are to be provided with JIS 10k welding flanges

by the customer.

10.Be sure to design the location of cooling tower to prevent

contamination of cooling water by exhaust gas from flues.

Supply

Header Return

Header

Secondary

Chilled

Water pump Bypass valve

Primary

Chilled water pump

Air

Conditioner

Hot water

Pump

Hot water

3 way valve

Cooling water pump

Cooling

tower

Make up

water

To drain

Air vent

In order to prevent freezing up of chilled water when the chilled water

gets a stop signal, continue the operation of the primary chilled water

pump and secondary chilled water pump and air conditioner during

dilution cycle operation of the chillers.

: Thermometer

: Pressure gauge

: Flow meter : Water pump : Strainer : Valve : Valve : Thermostat

Tank

above

Utility

1.Unit selection tables

2.Pressure drop curves

3.Installation and application data

4.Management of cooling water quality

5.Installation examples

Typical piping diagram-laying (LE)

Figure 61. Typical piping diagram

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Capacity ratings (DE and NE)

Chilled water temperature Cooling water inlet temperature (°C)

Outlet temp.

5.0

6.0

7.0

8.0

Inlet temp. 28 29 30 31 32 33

8.0

9.0

10.0

11.0

12.0

8.0

9.0

10.0

11.0

12.0

8.0

9.0

10.0

11.0

12.0

8.0

9.0

10.0

11.0

12.0

0.826 0.803 0.780 0.753 0.716 0.634

0.883 0.859 0.834 0.805 0.766 0.678

0.922 0.898 0.871 0.841 0.800 0.708

0.940 0.915 0.888 0.857 0.815 0.721

0.957 0.932 0.904 0.873 0.830 0.735

0.929 0.904 0.877 0.847 0.806 0.713

0.993 0.966 0.938 0.905 0.861 0.762

1.038 1.010 0.980 0.946 0.900 0.797

1.050 1.029 0.999 0.964 0.917 0.812

1.050 1.048 1.017 0.982 0.934 0.827

1.032 1.004 0.975 0.941 0.895 0.792

1.050 1.050 1.042 1.006 0.957 0.847

1.050 1.050 1.050 1.050 1.000 0.885

1.050 1.050 1.050 1.050 1.019 0.902

1.050 1.050 1.050 1.050 1.038 0.919

1.050 1.046 1.016 0.980 0.933 0.825

1.050 1.050 1.050 1.048 0.997 0.883

1.050 1.050 1.050 1.050 1.042 0.922

1.050 1.050 1.050 1.050 1.050 0.940

1.050 1.050 1.050 1.050 1.050 0.957

COW inlet CHW outlet

6.0

7.0

8.0

6.0

7.0

8.0

6.0

7.0

8.0

6.0

7.0

8.0

6.0

7.0

8.0

28.0

29.0

30.0

31.0

32.0

COW inlet CHW outlet

6.0

7.0

8.0

6.0

7.0

8.0

6.0

7.0

8.0

6.0

7.0

8.0

6.0

7.0

8.0

28.0

29.0

30.0

31.0

32.0

CHW ∆T = 4 deg CHW ∆T = 5 deg

Hot water outlet (°C) Hot water outlet (°C)

CHW ∆T = 6 deg

80.0 81.0 82.0 83.0 84.0 85.0

Hot water outlet (°C)

1.084 1.131 1.177 1.223 1.268 1.300

1.151 1.197 1.243 1.288 1.300 1.300

1.217 1.263 1.300 1.300 1.300 1.300

0.970 1.017 1.065 1.111 1.158 1.204

1.037 1.084 1.131 1.177 1.223 1.268

1.104 1.151 1.197 1.242 1.288 1.300

0.853 0.902 0.950 0.998 1.046 1.092

0.921 0.970 1.017 1.064 1.111 1.158

0.989 1.037 1.084 1.131 1.177 1.223

0.733 0.784 0.834 0.883 0.932 0.980

0.803 0.853 0.902 0.950 0.998 1.045

0.872 0.921 0.970 1.017 1.064 1.111

***

0.661 0.714 0.765 0.815 0.865

0.680 0.733 0.784 0.834 0.883 0.932

0.752 0.803 0.853 0.902 0.950 0.998

80.0 81.0 82.0 83.0 84.0 85.0

1.046 1.092 1.137 1.183 1.228 1.272

1.111 1.156 1.202 1.247 1.291 1.300

1.176 1.221 1.266 1.300 1.300 1.300

0.934 0.980 1.027 1.073 1.119 1.164

0.999 1.046 1.092 1.137 1.182 1.227

1.065 1.111 1.156 1.201 1.246 1.291

0.820 0.868 0.915 0.962 1.008 1.055

0.886 0.934 0.980 1.027 1.073 1.118

0.953 0.999 1.046 1.091 1.137 1.182

0.703 0.753 0.802 0.850 0.897 0.944

0.771 0.820 0.868 0.915 0.962 1.008

0.838 0.886 0.934 0.980 1.027 1.073

0.583 0.635 0.685 0.735 0.784 0.832

0.653 0.703 0.753 0.802 0.850 0.897

0.722 0.771 0.820 0.868 0.915 0.962

80.0 81.0 82.0 83.0 84.0 85.0

1.066 1.112 1.158 1.204 1.249 1.294

1.132 1.178 1.223 1.268 1.300 1.300

1.198 1.243 1.288 1.300 1.300 1.300

0.953 1.000 1.047 1.093 1.139 1.185

1.019 1.066 1.112 1.158 1.204 1.249

1.085 1.132 1.177 1.223 1.268 1.300

0.837 0.886 0.934 0.981 1.028 1.074

0.905 0.953 1.000 1.047 1.093 1.139

0.972 1.019 1.066 1.112 1.158 1.203

0.719 0.769 0.819 0.867 0.915 0.963

0.788 0.837 0.886 0.934 0.981 1.028

0.856 0.905 0.953 1.000 1.047 1.093

0.597 0.649 0.701 0.751 0.801 0.849

0.668 0.719 0.770 0.819 0.867 0.915

0.738 0.788 0.838 0.886 0.934 0.981

100

45678

Supply steam pressure(Kg / cm2G)

Selection condition

1) Chilled water 12°C 7°C

2) Cooling water 32°C 37.5°C

Cooling capacity

(%)

XXXX Note :

1) Cooling water temperature difference : 5.5°C constant

2) The table is used only for the purpose of presuming the capacity factor.

3) In DE model, the proper flow rate of hot water is required in case of heating mode.

It requires proper consumption of hot water for required cooling capacity.

4) Please contact your SANYO representative, if your request is not indicated in the table.

Table 14. Capacity factor (DE and NE)

Capacity ratings (LE)

Table 15. Capacity factor (LE)

Note :

1) Cooling water temperrature difference : 6°C constant

Hot water temperature difference : 5°C constant

2) The table is used only for the purpose of presumpting

the capacity factor.

3) It requires proper consumption of hot water for required

cooling capacity.

4) Please contact your SANYO representative, if your

request is not indicated in the table.

5) ” *** ” mark means out of operation condition.

Graph 12. Partial load characteristics

0 102030405060708090100

110

100

Load (%)

COP (%)

w/ inverter

w/o inverter

Adoption of the controlling circulation amount of the solution

In order to have a stable and effective operation under the wide range of

hot water temperature given, absorbent pump driven by an inverter con-

trols the optimal operation. This control is that hot water is effectively

utilized to regenerate the refrigerant instead of heating up the solution

not attributed to the cooling capacity at the partial load.

Features;

1. To shorten the start-up period in time.

2. To prevent the excessive heat rejection to the cooling water system.

Even if the heating amount of heat source becomes less, the unit can

operate without fail by means of the procedure that the input is almost

rejected to cooling water.

3.To improve COP at the partial load due to less input.

Graph 11. Cooling capacity and steam pressure

(steam-fired chillers)

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Pressure drop (kPa)

Flow rate (m

/h)

Graph 13.

Chilled water pressure drop curve (DE and NE)

900800700

600

500

400300 2000

200

1009080

100

7060504030 200

1000

11 12 13 14 21 22

23 24 31 32

41 42

Graph 14.

Cooling water pressure drop curve (DE and NE)

900800700

600500400300 2000

200

1009080

100

7060504030 200

1000

31 32

41 42 53

61 71

73 81

300

Pressure drop (kPa)

Flow rate (m

/h)

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800700

60050040030010090807060504030 2002010

13 14

32 41 42

Graph 15.

Chilled water pressure drop curve (LE)

200

100

Pressure drop (kPa)

Flow rate (m

/h)

800700

60050040030010090807060504030 20020 900 1000

32 41

Graph 16.

Cooling water pressure drop curve (LE)

200

100

Pressure drop (kPa)

Flow rate (m

/h)

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1. In order to prevent freeze-up of chilled water during unit shutdown,

the chilled water pump(s) and air handler must be run for 15 minutes

after the burner is shut off. This will allow time for the automatic dilu-

tion cycle to be completed.

2. The standard unit must not be subjected to water pressures in excess

of 981 kPa (10 kg/cm2G).

3. An expansion tank should be provided in the chilled/hot water line.

4. Thermometers and pressure gauges should be field-installed at the

inlet and outlet of the chilled/hot water line, and the cooling water

line.

5. During heating operation, the cooling water circuit should not be in

operation and should be blown down.

6. All external piping connections are provided with JIS 10K flanges un-

less noted.

7. A drain line must be installed from the smoke chamber drain to a floor

drain.

8. See Figure 32 (DE), Figure 48 (NE), Figure 61 (LE) for typical sys-

tem piping arrangement.

Field piping instruction

908070

60504030 200

109876543 20 100

01 02 03

13 21

14 22 23

41 42 51

Graph 17.

Hot water pressure drop curve (LE)

100

Pressure drop (kPa)

Flow rate (m

/h)

Installation and application data

Location and space requirements

The unit is designed for indoor application and must be located in a space

where the surrounding temperature of equipment is between 5°C and

45°C, and at no more than 90% relative humidity. Clearance must be

provided on either end to facilitate tube cleaning, or removal and clear-

ance on all other sides of the unit for general unit maintenance. See the

dimensional data tables for clearance requirements.

Water piping should be arranged so that the circulating pumps discharge

directly into the vessels. The water piping should be insulated to reduce

heat gain and to prevent condensation. Air vents should be located at all

high points in the water piping system, and drains should be located at all

low points to facilitate complete system drainage. To reduce vibration

and noise transmission, vibration absorbers should be provided. Shutoff

valves should be provided to allow unit isolation during maintenance.

Chilled water flow switch is provided on the unit and is preset to open at

approximately 50% of specified flow rate.

Water piping

AEvaporator side

Absorber side

Strict leveling tolerances must be adhered to for trouble-free operation.

SANYO units are furnished with four leveling reference points, one on

each corner of the lower shell or tube sheet. Each reference point is

designated by three punch marks. A convenient method to check level-

ing tolerances is to fill a clear vinyl hose with water and measure the

difference in the water level at the two points. The tolerance that must be

maintained from end-to-end and side-to side is 1mm (1/25'') of difference

for each 1m length between points. It is not necessary to check levels

diagonally. When the unit does not meet this requirement, the unit must

be shimmed in order to meet leveling tolerances.

Leveling requirements

Figure 62. Leveling the chiller

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100mm thick insulation for hot surface

75mm thick insulation for hot surface

Don't insulate the motor,

refrigerant pump and sight glass.

Don't insulate sight glass.

Evaporator cover and chamber cover are

removable in construction

*2 Chamber cover *2 Chamber cover

50mm thick insulation

for hot surface

50mm thick insulation for hot surface

30mm thick insulation for cold surface

Model 100mm 75mm 30mm 50mm 30mm

DE-11 5.8 2.2 2.9 4.0 0.4

DE-12 6.2 2.2 3.0 4.0 0.4

DE-13 7.8 3.2 4.2 5.5 0.4

DE-14 8.0 3.2 4.3 5.5 0.4

DE-21 10.1 3.8 4.9 6.1 0.5

DE-22 10.4 3.8 5.0 6.1 0.5

DE-23 11.8 4.8 5.5 7.6 0.5

DE-24 12.5 4.8 5.6 7.6 0.5

DE-31 14.5 5.5 6.2 8.5 0.7

DE-32 15.2 5.5 6.4 8.5 0.7

DE-41 17.5 5.7 6.8 9.9 0.7

DE-42 18.1 5.7 7.0 9.9 0.7

DE-51 19.6 5.4 7.6 13.8 1.1

DE-52 20.7 5.9 7.9 15.0 1.1

DE-53 21.7 6.2 8.2 16.1 1.1

DE-61 25.4 7.2 9.7 17.5 1.2

DE-62 27.2 7.7 10.1 18.7 1.2

DE-63 28.9 8.2 10.5 20.0 1.2

DE-71 35.4 10.4 12.1 10.9 1.4

DE-72 37.4 10.7 12.4 11.4 1.4

DE-73 39.4 11.0 12.7 11.8 1.4

DE-81 42.5 11.0 13.0 13.1 1.5

DE-82 44.0 11.3 13.5 13.6 1.5

Hot surface

insulation(m2)Cold surface

insulation(m2)

Insulation (DE)

Figure 63. Insulation of DE

Evaporator cover

Don't insulate the motor,

refrigerant pump and sight glass.

75mm thick insulation for hot surface

50mm thick insulation for hot surface

Evaporator cover and chamber cover are

removable in construction 30mm thick insulation for cold surface

30mm thick insulation for cold surface

Model 75mm 30mm 50mm 30mm

NE-11 5.2 3.5 4.0 0.4

NE-12 5.2 3.6 4.0 0.4

NE-13 7.3 4.8 5.5 0.4

NE-14 7.3 4.9 5.5 0.4

NE-21 8.3 5.7 6.1 0.5

NE-22 8.3 5.8 6.1 0.5

NE-23 10.5 6.3 7.6 0.5

NE-24 10.5 6.4 7.6 0.5

NE-31 11.6 7.1 8.5 0.7

NE-32 11.6 7.3 8.5 0.7

NE-41 13.0 7.7 9.9 0.7

NE-42 13.0 7.9 9.9 0.7

NE-51 13.8 8.9 13.8 1.1

NE-52 15.4 9.2 15.0 1.1

NE-53 17.0 9.5 16.1 1.1

NE-61 18.4 11.0 17.5 1.2

NE-62 20.2 11.4 18.7 1.2

NE-63 22.0 11.8 20.0 1.2

NE-71 20.9 13.7 10.9 1.4

NE-72 22.6 14.0 11.4 1.4

NE-73 24.6 14.3 11.8 1.4

NE-81 24.4 14.6 13.1 1.5

NE-82 26.4 15.1 13.6 1.5

Hot surface

insulation(m

)Cold surface

insulation(m

)

Figure 64. Insulation of NE

Insulation (NE)

Table 16. Insulation data Table 17. Insulation data

Notice :

1) Material : Glass wool or rock wool (non-combustible type)

2) The total area includes the area of pipes in the chiller/heaters.

3) The machine is coated with rust preventive paint before shipment,

but is not provided with finish paint.

Notice :

1) Material : Glass wool or rock wool (non-combustible type)

2) The total area includes the area of pipes in the chiller.

3) The machine is coated with rust preventive paint before shipment,

but is not provided with finish paint.

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Evaporator cover Evaporator cover

Generator cover Generator cover

Don't insulate the motor,

refrigerant pump and sight glass.

75mm thick insulation for hot surface

50mm thick insulation for hot surface

Evaporator cover and chamber cover are

removable in construction 30mm thick insulation for cold surface

30mm thick insulation for cold surface

Model 75mm 30mm 50mm 30mm

LE-01 2.3 1.4 3.3 0.2

LE-02 2.3 1.4 3.3 0.2

LE-03 2.7 1.6 3.9 0.3

LE-11 2.8 1.6 4.0 0.3

LE-12 2.8 1.8 4.0 0.3

LE-13 3.8 1.9 5.5 0.3

LE-14 3.8 2.2 5.5 0.3

LE-21 4.0 2.5 6.1 0.4

LE-22 4.0 2.5 6.1 0.4

LE-23 5.2 3.1 7.6 0.5

LE-24 5.2 3.3 7.6 0.5

LE-31 6.0 3.5 8.5 0.5

LE-32 6.0 3.6 8.5 0.5

LE-41 6.6 3.7 9.9 0.5

LE-42 6.6 3.9 9.9 0.5

LE-51 7.6 4.8 13.8 0.7

LE-52 8.4 5.1 15.0 0.7

LE-53 9.2 5.3 16.1 0.7

Hot surface

insulation(m

)Cold surface

insulation(m

)

Notice :

1) Material : Glass wool or rock wool (non-combustible type)

2) The total area includes the area of pipes in the chiller.

3) The machine is coated with rust preventive paint before shipment,

but is not provided with finish paint.

Figure 65. Insulation of LE

Insulation (LE)

In some instances local codes may dictate the use of a rupture disk to

prevent damage to the chiller in the event of overpressurization of the

high and low temperature generators. SANYO units are provided with a

flange for mounting a rupture disk.

At this flange connection, a rupture disk may be installed and connected

to a field-provided overflow tank per Figure 66.

It is the responsibility of the installing contractor to install the rupture disk

on the units and overflow tank (if required) prior to initial chiller startup.

Rupture disk mounting

Rupture disk mounting instructions are as follows:

1. Prior to installing or replacing the rupture disk, insure that a slight

positive pressure is maintained in the chiller with nitrogen gas.

2. Apply Teflon paste to both sides of gasket.

3. Align gasket as shown in Figure 68.

4. Assemble flanges and torque per specifications shown in the manual

of rupture disk.

5. Conduct leak test using nitrogen gas at 49 kPa (0.5 kg/cm2G) after

installation of rupture disk.

6. Periodic maintenance should include tightening the rupture disk with

a torque wrench.

4.5

3.2

4 inch

• Material : T/#9090-OR

disk

6 inch

disk

(mm)

174.8

149.4

127.6

222.3

209.6

182.6

C B

Pipe

Flange

High tension nut

High tension bolt

To tank

From chiller

Teflon paste

Safety head

: Scope of supply by SANYO

Rupture disk

Safety head

Teflon paste

Gasket

Cap screw

Above 35 QFT

Discharge piping

Rupture disk

Vent piping

Drain

Tank

Support

Figure 66. Piping of rupture disk

Figure 67. Fixing methed of rupture disk

Figure 68. Gasket

Table 18. Insulation data

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The cooling water of an open-type recycling cooling tower lowers tem-

perature of the cooling water using vaporized latent-heat, and is reused.

At this time, the water is evaporated and dissolved salts. Hardness mate-

rials sulfate ion, etc. in the water will increase. Namely, condensation

phenomena of such materials occurs in the water, and water quality will

Quality control of cooling water

gradually be degraded. As the water and air always come in contact with

each other in the cooling tower, sulfurous acid gas, dust, sand and etc. in

the atmosphere will mix into the water, further degrading the water qual-

ity. In the cooling water system, problems with water are caused by these

factors. Typical problems are corrosion, scales and slimes.

As with any system utilizing an open or closed loop water circuit, the use

of water treatment is a necessity to insure long life and efficient operation

of the entire system.

Impurities in the water such as scale, dirt, bacteria, etc. will adhere to

heat transfer surfaces causing a loss of efficiency, higher operating costs,

and a potential for mechanical damage.

Proper and continued water treatment by a reputable water treatment

company should be continued for the life of the equipment. Water treat-

Water treatment

ment specialists can also help determine the necessary time intervals for

tube inspections and/or tube brushing/cleaning.

Added attention must be given on retrofit jobs when the existing piping is

reused. Air infiltration into the piping will cause a rapid build-up of rust

and corrosion inside the piping. Scale and debris may break loose from

the inside walls of the piping during retrofit operations. The use of water

strainers and water treatment will be necessary to remove the larger par-

ticles from the system and keep the smaller particles in suspension.

Notes :

1) The nomenclature of items, definition of terms and units shall comply with the JIS K 0101.

2) The mark K indicates factors affecting the corrosive or scale-forming tendencies.

3) When temperature is high (above 40°C), corrosiveness generally increases.

Especially, when the iron/steel surface has no protective film and directly contacts water,

it is desirable to adequately take countermeasures against corrosion, such as the addition of a

corrosion inhibitor and deaeration treatment.

4) As for the cooling water system using a closed type cooling tower, the water quality standard for

the mid-range temperature water system shall be applied to the closed circuit recirculating/sprinkling

water and its make-up water, while the water quality standard for the recirculating cooling water

system shall be applied to the sprinkling water and its make-up water, respectively.

5) City water, industrial water and ground water shall be used as source water, and demineralized water

reclaimed water, softened water, etc. shall be excluded.

6) The 15 items listed above show typical factors of corrosion and scale problems.

Cooling water thermostat

for cooling tower fan

Constant flow

blow valve

Cooling tower

Blow

Water supply

Chemicals adding pump

Chemicals tank

To chiller

From chiller

Cooling

Water pump

Cooling water thermostat

for three-way control valve

Automatic three way control valve

Cooling water system

Reference items Standard items

Chilled water system Tendency

Recirculating type

Table 19. Water quality standard values for cooling water and chilled water

Table 20. Water quality standard values for mid-range temperature water

Recirculating

pH(25°C)

Electrical

conductivity 25°C

Chloride ion

Sulfate ion

Acid consumption

pH 4.8

Total hardness

Calcium hardness

Ionic silica

Iron

Copper

Sulfide ion

Ammonium ion

Residual chlorine

Free carbon

dioxide

Ryzner stability

index

(ms / m)

(mgCI- / I)

(mgSO

- / I)

(mgCaCO

/ I)

(mgCaCO

/ I)

(mgCaCO

/ I)

(mgSiO

/ I)

(mgFe / I)

(mgCu / I)

(mgS

- / I)

(mgNH

+ / I)

(mgCI / I)

(mgCO

/ )

(RSI)

6.5 to 8.2

80 or less

200 or less

100 or less

200 or less

150 or less

50 or less

1.0 or less

0.3 or less

No detected

1.0 or less

0.3 or less

4.0 or less

60 to 7.0

6.0 to 8.0

30 or less

50 or less

70 or less

50 or less

30 or less

0.3 or less

0.1 or less

No detected

0.1 or less

0.3 or less

4.0 or less

***

7.0 to 8.0

30 or less

50 or less

70 or less

50 or less

30 or less

1.0 or less

No detected

0.3 or less

0.25 or less

4.0 or less

***

7.0 to 8.0

30 or less

50 or less

70 or less

50 or less

30 or less

1.0 or less

No detected

0.1 or less

0.3 or less

4.0 or less

***

7.0 to 8.0

30 or less

50 or less

70 or less

50 or less

30 or less

1.0 or less

No detected

0.1 or less

4.0 or less

***

7.0 to 8.0

30 or less

50 or less

70 or less

50 or less

30 or less

0.3 or less

0.1 or less

No detected

0.1 or less

0.3 or less

4.0 or less

***

6.8 to 8.0

40 or less

50 or less

70 or less

50 or less

30 or less

1.0 or less

No detected

1.0 or less

0.3 or less

4.0 or less

***

6.8 to 8.0

40 or less

50 or less

70 or less

50 or less

30 or less

1.0 or less

No detected

1.0 or less

0.3 or less

4.0 or less

***

6.8 to 8.0

30 or less

50 or less

70 or less

50 or less

30 or less

0.3 or less

0.1 or less

No detected

0.1 or less

0.3 or less

4.0 or less

***

Make-up water

Once through

(One way) type Make-up water Corrosive Scale forming

below 20°C

Recirculating

Mid-range temperature (20-90°C) water system

Reference items Standard items

Tendency

Lower level (20 to 60°C) Higher level (60 to 90°C)

Recirculating

pH(25°C)

Electrical

conductivity 25°C

Chloride ion

Sulfate ion

Acid consumption

pH 4.8

Total hardness

Calcium hardness

Ionic silica

Iron

Copper

Sulfide ion

Ammonium ion

Residual chlorine

Free carbon

dioxide

Ryzner stability

index

(ms / m)

(mgCI- / I)

(mgSO

- / I)

(mgCaCO

/ I)

(mgCaCO

/ I)

(mgCaCO

/ I)

(mgSiO

/ I)

(mgFe / I)

(mgCu / I)

(mgS

- / I)

(mgNH

+ / I)

(mgCI / I)

(mgCO

/ )

(RSI)

Make-up waterRecirculating Make-up water Corrosive Scale forming

Figure 69. Temperature control of cooling water

Management of cooling water quality

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Examples of Installation

Osaka Dome City User : OSAKA GAS Co.,Ltd. Iwasaki Energy Center

TOKYO INTERNATIONAL FORUM User : Tokyo Heat Supply Co.,ltd

Kitakyusyu Media Dome

Kyoto Station Building

Cooling water blow system

A part of circulating water should be blown to prevent degrading of cooling water quality.

Since concentration ratio is considered about 3 to 4 blowing, water quantity is calculated as follows.

N : Concentration ratio generally N=3

M : Make-up water volume

3,024✕1.85 (exhaust factor)

E : Evaporation loss E= 575 (Latent heat of evaporation at 40°C)

W : Splashing loss generally W=0.2% of circulating water volume

B : Blow volume

E+W+B

M : E+W+B N= W+B

by the above,

B= • (E+W-NW) M= •E

N-1 N-1

Absorption

chiller

Over flow

Blow regulation valve

Solenoid valve

Pressure switch

Higher than

cooling water level

Sensor

Water treatment control panel

Make-up

water

Manual valve

Figure 70.

Figure 71.

Figure 72.

Figure 73.

Make-up

water

Make-up

water

Make-up

water

Absorption

chiller

Absorption

chiller

Absorption

chiller

Over Flow

Make-up water is over supplied

by manual valve for over-flow

in cooling tower.

Continuous Flow

Certain amount of circulating

water is blown by blow

regulation valve.

Pressure Switch+Solenoid Valve

Circulation pump is controlled

by pressure switch.

Conductivity Meter+Solenoid Valve

PH Meter+Solenoid Valve

Blow is controlled.

Sanyo De Users Manual

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