Carrier 38TKB018 SERIES330 User Manual CONDENSING UNIT Manuals And Guides L0211022

CARRIER Air conditioner/heat pump(outside unit) Manual L0211022 CARRIER Air conditioner/heat pump(outside unit) Owner's Manual, CARRIER Air conditioner/heat pump(outside unit) installation guides

User Manual: Carrier 38TKB018 SERIES330 38TKB018 SERIES330 CARRIER CONDENSING UNIT - Manuals and Guides View the owners manual for your CARRIER CONDENSING UNIT #38TKB018SERIES330. Home:Heating & Cooling Parts:Carrier Parts:Carrier CONDENSING UNIT Manual

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38TKB
Air Conditioning Unit

HEATING & COOLING

Vish

www

c_rier

corn

Installation and Start-Up Instructions
NOTE: Read the entire instruction manual before beginning the
installation.
This symbol

indicates

a change

since

last issue.

SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
nr use can cause explosion, fire. electrical shock, or other
conditions which may cause personal injury or property damage.
Consult a qualified installer, service agency, or your distributor or
branch for inlbrmation or assistance, The qualified installer or
agency must use factory-authorized kits or accessories when
modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing.
Follow all safety codes. Wear sal_ty glasses and work gloves. Use
quenching cloth for brazing operations. Have fire extinguisher
available. Read these instructions thoroughly and follow all
warning or cautions attached to the unit. Consult local building
codes and National Electrical Code (NEC) for special requirements.
Recognize
When

safety

you

manuals,

see

information.

This is the safety-alert

this symbol

the unit

be alert to the potential

and

for personal

symbol

A98519

____)

Fig. 1--Model

,_.

in instructions

injury.

5. When

passing

opening

Understand these signal words; DANGER. WARNING. and
CAUTION. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies hazards
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which would result in minor personal
injury or product and property damage.

NOTE:

In some cases,

gas pulsations

from

noise

improper

I. Locate

the unit away

2. Ensure

that vapor

the capacity
3. Run

from

turns

arc appropriate

aw_iding

and the unit to absorb

reserves

the dght

that

to discontinue,

Catalog No. 563-754

tubing

from joists

comes

in direct

tubing

or change at any time, specifications
Printed in U.S.A.

seal

caulk.

the
(See

insulation

use hanger

the hanger

unit

straps

with the

and completely

sur-

(See

the insulation

Fig. 3.)

by using

metal

of the insulation.

to factory-approved
charge

For proper

install

indoor

unit.

for operation

with

operation,
located

size is 3/8dn.

a liquid-line
part

filter
nmnher.

on control

O.D.

tbr all

drier.

Reler

Obtain

filter

or branch.

notice and without incurring
Pg 1

check

long line.

for appropriate

local distributor

unit

information

liquid-line

including

without

are I in. wide and

insulation.

unit of the same size when connected
tubing.

Always

or designs

Form 38TKB-SSI

floor

and studs with a
contact

which

refrigerant

using charging

Digesl

your

from

system

Maximum

Data

strops

to the shape

is connected

indoor

charge

is pliable

of the tubing

bent to conform

applications

from

dnctwork,

line.

unit contains

Product

which

to the shape

outdoor

residential

with water pipes,

refrigerant

the vapor

factory-approved

driers

PC 101

wall.

(See Fig. 3.)

IMPORTANT:

the structure

the

silicombased

and walls.

necessary,

refrigerant
box cover.

contact

or strap

IMPORTANT:
possible

through

floors,

15 fi of field-supplied

vibration.

Manufacturer

wire

tubing.

outdoor

and bends.

4. Leave some slack between

rigid

When

1.)
as

7, Do not suspend

sleeves

has been traced to

lineset

wall studs,

10. Isolate

of equipment.

line diameters

directly

direct

joists,

conform

windows.

and liquid

tubes

area

installation

of the unit. (See Table

refrigerant

unnecessary

in the living

6. Avoid

9. When

RECOMMENDATIONS

tubes

or other pliable

Fig. 3.)

rounds

Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There
may be more than 1 disconnect switch. Lock out and tag
switch with a suitable warning label. Electrical shock can
cause personal injury or death.

refrigerant

with RTV

8. Ensure

'i2LIitTIIX,-1
'

INSTALLATION

38TKB

11-98

obligations.

Replaces:

38TKB-3SI

Table 1--Refrigerant

Connections

and Recommended

LIQUID

UNIT
SIZE

Connection

Diameter

VAPOR
Diameter

Connection

Tube Diameter

Liquid and Vapor Tube Diameters (In.)

018, 024

3/8

5/8

030, 036

3/8

3/4

042, 048
060

3/8
3/8

7/8

Notes:

7/8

1-1/8

1 Tube diameters are for lengths up to 50 It For tube sets ever 50 ft. consu)t Residential
2 DO not apply capillary tube indoor coils to these units

INSTALLATION
Step 1--Check

INSPECT EQUIPMENT--File
claim with shipping company
prior to installation if shipment is damaged or incomplete. Locate
unit rating plate on unit service panel. (See Fig, 2.) It contains
information needed to properly install unit. Check rating plate to
be sure unit matches job specifications.
on a Solid, Level Mounting
should

be used

and fastened

1-1/8

Guideline.

Roof mounted units exposed to winds above 5 mph may require
wind baffles. Consuft Low-Ambient Guideline for wind baffle
construction.

Pad

NOTI=: Unit must be level to within -+2_ per compressor manufacturer specifications.

If conditions or local codes require the unit be attached to a pad,
bolts

7/8
1-1/8

On rooftop applications, mount on level platfonn Dr frame. Place
unit above a load-bearing wall and isolate unit and tubing set frDm
structure. Arrange supporting members to adequately support unit
and minimize transmission of vibration to building. Consult local
codes governing rooftop applications.

UNPACK UNIT-- Move to final location. Remove carton taking
care not to damage unit.

tie down

Long-Line Application

3/4

provided in unit base paR. Refer to unit mounting pattern shown in
Fig. 2 te determine base pan size and knockout hole location.

Equipment and Job Site

Step 2--Install

VAPOR (LONG LINE)
Tube Diameter

Connection Diameter
5/8
3/4
7/8
7/8

Tube Diameter

through

knockouts

AIR tN
AIR DISCHARGE

I,
1, -

i
_ i ,o_

--',

3f8" (9 53) DIA TIEDOWN
KNOCKOUTS
IN SASEPAN

(2) PLACES

AIR DISCHARGE

UNIT MOUNTING PATTERN
VIEW FROM TOP

AIR IN
"_

8 3G6"
(207.9)

•
,_1_

AIR DISCHARGE

1 9/1"_1_16".-_d_

2 1/2"
1637)

_-718"

FIELD POWER SUPPLY CONN
(2222) DIA HOLE WITH
I l/B" (28 57) DIA KNOCKOUT
(ALL SIZES) AND 1 3/B" (3492)
DIA KNOCKOUT
SIZES ONLY)

(036 THRU 06C

ACCESS

FIELD CONTROL
CONN

IIII

SUPPLY
PANEL

7f8" (22 22) DIA HOLE

.I
__

10 V2"
(2667)

_-_j

4 3116"
(106 3")_

LINE CONNECTION

144-6)

NOTES:
1

ALLOW

30" (762) CLEARANCE

TO sEevIcE

END OF

3
4
5

UNIT 48" (1219) ABOVE UNIT, 6" (152) ON ONE SIDE, 12" (306)
ON REMAINING SIDE, AND 24" (610) BE nNEEN
UNITS FOR PROPER AIRFLOW
2

MINIMUM
55F

OUTDOOR

OPERATING

(12 8_C), (UNLESS

AMBIENT

LOW AMBIENT

IN COOLING

CONTROL

MODE

IS USED) MAX

MAXIMUM OUTDOOR OPERATING
AMBIENT IN HEATING MODE
DIMENSIONS
IN PARENTHESIS
ARE IN MILLIMETERS
SERIES DESIGNATION
IS THE 13TH POSITION OF THE UNIT
MODEL NUMBER

IS 66 F {16.9o0)

IS
125"F (51 7°C)

A91055

MODEL 38TKB

In.

013, 024, 030, 036

22-1/2

27-1/2

2-13/16

6-15/16

042, 048, 060

34-15/16

9-3/4

Fig. 2--Unit

Reference Drawing
2

NOTE:
Avoid
contact
OUTDOOR

between tubing and structure

WALl:

INDOOR

WALL

.___)

CAULK_IQUID

_L.__INSULATION

TUBE

_7'_y

_'_

F,,_[,{_T_[,]:
To prevent

L.-- VAPOR TUBE

h) urm or

damage

service

valves

the

observe

1hi)owing:
THROUGH

THE WALL

• Use a brazing

shield.

• Wrap service
ma_eriah
Outdoor

INSULATION

package

capacity
TUBE_I

VAPORTUBE

moisture

Allow

space

30 in. clearance

unit. For proper

airflow,

Refer

to service

INDOOR

end of

a 6 in. clearance

UNIT

ant

UNIT--

charge

Outdoor

for operation

fall directly

REFRIGERANT

TUBING-

door

vapor

and

grade

tubing.

unit at feast

The minimum

outdoor

and the maximum
125°F.

Check

on unit.

6 in. above

roof

refrigerant

unit

Ambients

SWEAT

operating

tory and ready

outdoor

ambient

operating

in ¢ooling

ambient

mode is 55°F.

in cooling

mode

Indoor

Check

indoor

coil

shown

on unit rating

piston with piston

piston

AccuRater_

Piston,

to see if it matches

plate. If it does not match,

shipped

unit is correct

with this unit. The

for any approved

indoor

replace

for brazing.

bearing

now ready

piston

factory

unit

require-

your

local

they
and

tubing
valves.

Service

valves

when
tubing.

set can be brazed

to fittings
(See

to the service

Refrigerant

brazing
tubing

This check

should

1.) Use

from

the service

bearing

on out-

Table

are closed

wrapping

or non-silver

for leak testing.

refriger-

size

efficiency.

service

After

system

of same

or factory-accessory

Connect

liquid

CONNECTION

silver

correct

indoor

for maximum

sult local code requirements.

if Required

the required

charge

a wet cloth, the robing

either

Step 5--Replace

I for field tubing

TO FACTORY-APPROVED

by 15 fi of field-supplied

refrigerant

Step 4--Operating

outdoor

locate

the recomApplication

2 for accessory

unit contains
with

snow,

appfications,

Following
Long-Line

than 36 in.. consult

CONNECTED

connected

On rooftop
surface.

size

in the system,

sides must be main_aineO.
units. Position so water.

cannot

of correct

50 It. substantial

Refer to Table

to Table

greater

1 side of anit and 12 in. on all remaining
Maintain
a distance
of 24 m. between
roof or eaves

beyond

Split System

these losses.

length.

using accessory

tubing

losses can occur.

applications

OUTDOOR

wiring, ret_ig-

for airflow,

section

If refrigerant
tubes or indoor coil are exposed to atmosphere,
must be evacuated
to 500 microns to eliminate contamination

Installation

Requirements

allow sufficient

line

---). For buried-line
distributor.
A94028

Fig. 3--Piping

or ice from

sink

morns.

LIQUID TUBE

and service,

will reduce

equivalent

SUSPENSION

unit and 48 in. abouve

or use a heat

refrigerant

requiremcnts

in the Residential

Guideline

1" MIN _

For tubing

and performance

mendations

erant piping,

cloth

to indoor

or field-supplied

and condition.

installing,

wet

units may be connected

tubing

When

with

.,_r/'-JOIST

HANGER STRAP
(AROUNDVAPOR--_--

Step 3--Clearance

valves

fac-

valve with
valve using

material.

Con-

and indoor coil are
include

all field and

joints.

indoor coil

piston shipped

g_] ['_-t iJ[']21

with

coil cmnbination.

To avoid valve damage while brazing, service valves must be
wrapped in a heat-sinking material such as a wet cloth.
Step

Step 6--Make

Tubing Connections

Vt_lLrJ/'-._:UI17
[_]

7--Make

pressure

and recover

all refrigerant

before

syslem

wiring

complies

and electrical

codes,

and voltage

including

solenoid

is within

fire. safety.
limits

company

improper

rating

lbr recommended

voltage.

See unit

plate

shown

for correction

circuit

device
Operation

and could aft_ct

install

to system

local power

abuse

valves.

with local and national

on unit rating plate. Contact

NOTE:

repair or final unit disposal to avoid per_onal mjut 3' or dcznb.
Use all ,service
pots
and open all flow-control
devices.

Connections

Be sure field

protection
Relieve

Electrical

unit

unil

in system

fluctuate

above

NOTE=:
unit.

Use

where

or below

copper

on bnproper

unit reliability.

wire

voltage

permissible
only

line voltage

constitutes

See unit rating plate. Do not
or

phase

imbalance

may

limits,

between

disconnect

switch

and

-..)

Table 2--Accessory
ACCESSORY

Crankcase

Heater

Usage

REQUIRED FOR
LOW-AMBIENT
APPLICATIONS
(BELOW 55°F)
Yes

REQUIRED FOR
LONG-LINE
APPLICATIONS*
(OVER 50 FT)
Yes

REQUIRED FOR
SEA COAST
APPLICATIONS
(WITHIN 2 MILES)
No

Evaporator Freeze Thermostat
Winter Start Control

Yes

Yes1"

Accumulator

Compressor Start Assist
Capacitor and Relay

Yes

Low-Ambient Controller,
MotorMaster_ Control,
or
Low-Ambient Pressure Switch

Yes

Wind Baffle

See Low-Ambient

Coastal Filter

Instructions

No
Recommended

Support Feet
Solenoid Valve
or
Hard Shutoff TXV

Yes

Liquid-Line

Recommended

See Long-Line
Application
Guideline

No
Yes:[:

Ball Bearing Fan Motor

• For tubing line sets between .50 and 175 ft, refer to Residential Split System Long-Line Application Guideline.
t Only when low-pressure switch is used
:_ Required for Low-Ambient Controller (full modulation feaature) and MotorMaster Control only

CONNECT GROUND AND POWER WIRES -- Connect ground
wire to ground connection in control box for safety. Connect
power wiring to contactor as shown in Fig. 4.
CONNECT
NOTE: Install branch circuit of adequate size per NEC to handle
unit starting current. Locate disconnect within sight from and
readily accessible from unit per Section 440-14 of NEC.

r,.] w._,d
The unit cabinet must have an uninterrupted or unbroken
ground to minimize personal injury if an electrical fault
should occur. The ground may consist of electrical wire or
metal conduit when inslalJed in accordance with existing
electrical codes. Failure to follow this warning can result in an
electrical shock, fire, or death.
ROUTE GROUND AND POWER WIRES--Remove
access
panel and control box cover to gain access to unit wiring. Extend
wires from disconnect through power wiring hole provided and
into unit control box,
DISCONNECT
PER N. E. C. AND/OR
LOCAL CODES
CQNTACTOR
I
I
I

FIELDPQWER

]

C>°C}

WIRING

©oC>
FIELD GROUND
WIRING

GROUND
LUG
A91056

Fig. 4--Line

Power Connections

WIRING--Route

24-v control wires

and connect

leads to control

Use No, 18 AWG color-coded, insulated (35 ° C minimum) wire.
If thermostat is located more than 100 ft from unit as measured
along the control voltage wires, use No. 16 AWG color-coded
wires to avoid excessive voltage drop.
All wiring must be NEC Class I and must be separated from
incoming power leads.
Use furnace transformer, fan-coil transformer, or accessory Iransformer for control power. 24-v/40va minimum.
NOTE: Use of available 24-v accessories may exceed the minimum 40-va power requirement. Determine total transformer loading and increase the transformer capacity or split the load with an
accessory transformer as required.
Step 8_Compressor

Crankcase

Heater

When equipped with a crankcase heater, furnish power to heater a
minimum of 24 hrs before starting unit. To furnish pewer to heater
only, set dlcrmostat to OFF position and close eleclrical disconnect
to outdoor unit.
A crankcase heater is required if the refrigerant tubing is longer
Ihan 50 ft Rel_r to Residential Split System Long-Line Application Guideline.
Step 9--Install

Electrical Accessories,

Refer to the individual instructions
accessory when insla]ling.

Q
j

CONTROL

through control wiring grommet
wiring. (See Fig. 5.)

If Any

packaged

with the kit or

CARRIER
NON-PROGRAMMABLE
THERMOSTAT
MODEL AC

24 VAC HOT

_.-,

24 VAC COM

_-"

SINGLE-STAGE
FURNACE

CARRIER
NON-PROGRAMMABLE
THERMOSTAT
MODEL AC

AIR
CONDITIONER

24 VAC HOT

FA. FS, FC,
FD, FF
FAN COIL

AIR
CONDITIONER

_-r_q

HEAT STAGE

COOL STAGE

INDOOR

......

SEE
NOTE2
HEATSTAGE1
COOLSTAGE1

.... L_ I

FAN

CL_---

SEE
NOTE2

....

24 VAC COM

INDOOR

FAN

_--°

A9468

A97467

CARRIER
PROGRAMMABLE
THERMOSTAT
MODELAC

SINGLE-STAGE
FURNACE

CARRIER
PROGRAMMABLE
THERMOSTAT
MODEL AC

AIR
CONDITIONER

FA, FB, FC,
FD, FF, FX
FAN COIL

AIR
CONDITIONER

I -24 VAC

HOT

INDOOR

24 VAC HOT

--[_

INDOOR

--[w]

HEAT STAGE 1

FAN

HEAT STAGE

COOL STAGE 1

FAN

COOL STAGE 1

NOT USED

_'_

NOT USED

SEE
NOTE2
NOT USED

SEE
NOTE2

NOT USED

-El-

24 VAC COM
NOT USED

[_]1

NOT USED

r_J

24 VAC COM

NOT USED

{_11

NOT USED

J'_'_J

A97469
OPTIONAL
OUTDOOR

SENSOR
CONNECTION

S'_7

OTHER
NON-PROGRAMMABLE
AC THERMOSTAT

24 VAC

A97595

31
OUTDOOR
SENSOR
CONNECTIO

OPT,ONAL
_E_I

SINGLE-STAGE
FURNACE

COOL

INDOOR

I_-I

OTHER
NON-PROGRAMMABLE
AC THERMOSTAT

AIR
CONDITIONER

FA, FB, FC,
FO, FF, FX
FAN COIL

AIR
CONDITIONER

HOT

24VACHOT

HEAT

STAGE

PAN

_'_
n.

SEE
NOTE2

HEATSTAGE'
D _-

E}-.

-_1

-J

C /

SEE
NOTE2

OOOLSTAGE,
[B--R .....

'NDOORFAN
D a--@
A97367

Fig. 5---24-v Control Circuit Connections

A97593

CARRIER
NON-PROGRAMMABLE
THERMOSTAT
MODEL AC

FK4C. FV4A
FAN COfL

AIR
CONDITIONER
II¢/_J1JUMPER

24 MAC COM

CARRIER
PROGRAMMADLE
THERMOSTAT
MODEL AC

_ __

HEAT STAGE 1

_ _]_

FAN

AIR
CONDITIONER

SEE
NOTE2

COOL STAGE 1
INDOOR

FK4C, FV4A
AN COIL

24 VAC HOT

INDOOR

FAN

-IN"J_.___,_UMP_
-IN

HEAT STAGE 1

[]
[]

A97596

r-_ _'_JUMPER

COOL STAGE 1

NOT USED
OTHER
NON-PROGRAMMABLE
AC THERMOSTAT

NOT USED
FK4C, FV4A
FAN COIL

AIR
CONDITIONER
I

SEE
NOTE 2

4V OO
4g]-

J1 JUMPER

[]
[]

NOT USED
NOT USED
HEAT STAGE

2,VAC.OT
COOL STAGE
INDOOR

SEE
NOTE2

A97597

OUTDOOR

SSNSOR
OPTIONAL
CONNECTIO

FAN

I
-_GI

_
I011

IYll

A97592

NOTES:
1. CARRIER

WIRING

SOME
CYCLE

THERMOSTAT

MUST
UNITS

A LIQUID-LINE

HOUR
6.

CONFORM
ARE

LIMIT.

STAGE

ARE

ELECTRIC

DIAGRAMS

NEC

WITH

CONNECT

SOLENOID

SEE

EQUIPPED

PROTECTION.

5. THERMOSTATS

WIRING

THERMOSTAT
RESISTANCE

LOCAL

FIELD

ACCURATE

SWlTCH(ES),
WIRING

IS REQUIRED

CONFIGURED

ON
WITH

INSTALLATION
HEAT.

ONLY

FOR

MODEL

NUMBERS

BEGINNING

WITH

TSTAT

CODES.

PRESSURE

24-V

VALVE

FACTORY

ARE

TEMPERATURE

SOME

STRIPPED

5-M1NUTE

COMPRESSOR

LEADS,

UNITS,

5-MINUTE
INSTRUCTIONS

CONSULT

SWITCH,

FACTORY-PROVIDED

OUTDOOR

COMPRESSOR
FOR

CYCLE

PROTECTION

AND

4 CYCLES

PER

DETAILS.

THERMOSTAT

INSTALLATION

INSTRUCTIONS.

LEGEND
24-V FACTORY WIRING
24-V FIELD WIRING

FIELD SPLICE CONNECTION
CONTACTOR
A97368

Fig. 5---Typical 24-v Circuit Connections (Continued)

Step 10--Start-Up

and Check Charge

NOTE:

If superheat

favorable,
plate
To

prevent

compressor

damage

or personal

injury,

+ 0.6

system

• Do not operate

unit

• Do not disable

low-pressure

In scroll

compressor

• Dome

temperatures

• In 3 phase

observe

with rcl?-igerant.

in a vacumn

ozJfl

pressure.

switch

may he hot+

application,

incorrect

in elevated

I. Operate
phasing

noise

will cause

levels,

reverse

equalized

by reversing

pres-

unit

2. Measure

power

suction

mistor
valve.
prevent

personal

injury

and gloves

wear

safety

when handling

glasses,

protective

refiigemnt

• Back sealing

service

valves

are not equipped

Fully back seat (counter
gage

clockwise)

with Schrader

valve stem before

seating

service

or final
these

valves

are equipped

with

Schrader

to atmosphere.

Recover

during system

seat (open)
with

installed.

liquid and vapor
valve

Replace

stem(s)

tube service

front

seated

stem caps after

electrical

is below

disconnects

thermostat
indoor

at desired

ambient

5. Set room thermostat
mode.

as desired.

refrigerant

to energize

R-Y energizes

starting
When

circuit.

the indoor

Operate

and blower
unit

CHARGE

the thermostat

at ON or AUTO
Check

motor

relay

on power

makes

contactor,

starting

suction

pressure

minutes

before

checking

suction

by attaching

an accurate

gage

port.

temperature

type or electronic

has a lower

10. If outdoor

by attaching

thermometer

suction

reclaim

air
charge

Step 12--Final

system

IMPORTANT:

an accurate

ther-

to suction line at service

with thermometer.

line

refrigerant

temperature

until

charted

than charted
temperature

temperature

to new suction

pressure

at suction

line temperature

valve

indicated

Checks
Before leaving job, be sure to do the following:

1. Securely fasten all panels and covers.

circuits
outdoor

the indoor

to indoor and

R-Y and R-G.
fan motor

unit

blower

and

3. Leave User's Manual with owner. Explain system operation
and periodic maintenance requirements outlined in manual.
4. Fill out Dealer Installation
file.

its contacts

Compressor
with

CARE AND MAINTENANCE

open.

and motors

a time-delay

relay

de-energizing
stop
circuit,

90 sec_mds to increase

the

system

For continuing high performance and to minimize possible equipment failure, periodic maintenance must be performed on this
equipment.
Frequency

Charge
Factory

Adjust charge by flfllowing
located on unit.

charge
procedure

is shown
shown

Checklist and place in customer

relay.

on high speed.

will run an additional

charge

The fi)llowing procedure
+_ 21% of its rated CFM.

2. Tighten service valve stem caps to 1/12-turn past finger tight.

is equipped

Step 11'--Check

a minimum

valve service

temperature,
reached.

changes,
chart.

Be sure set point

unit for 15 minutes.

is satisfied,

If indoor

= 6 oz of additional

with

system.

and fan control

R-G energizes

contactor

UNIT

is opened

and tighten

temperature.

at COOL

blower

the thermostat

indoor blower
efficiency

and

charge.

On a call for cooling,
compressor

15 ft

temperature.

SEQUENCE
OF OPERATION
-- Turn
outdoor units. Transformer
is energized.

Circuit

9. If unit

valves.

(closed)

system

refrigerant
flow. Replace caps finger-tight
wrench an additional
1/12 turn.

4. Set room

below

8. If unit has a higher suction line temperature than charted
temperature, add refrigerant until charted temperature is
reached.

to start up the system:

2. Unit is shipped

3. Close

7. Refer to Table 4. Find superheat temperature located in item 6
and suction pressure. At this intersection, note suction line
temperature.

unit disposal.

steps

I. Fully back

caps

above

not

rating

6. Refer to Table 3. Find outdoor temperature and evaporator
entering air wet-bulb temperature. At this intersection, note
superheat.

port cap

Do not vent refrigerant

Fofiow

line

are

with unit

5. Measure indoor air (entering indoor coil) wet-bulb temperalure with a sling psychrometer.

¥.'_[@211ii['/21
repair

liquid

4. Measure outdoor air dry-bulb temperature

and observe

the following:

• Front
valves.

conditions

charge,

3. Measure

removing

3/g-in.

COOLING
ONLY PROCEDURE-valid when indoor airflow is within

applications:

resulting

valves.

25 t_ - 15 ft = I0 fl X 0.6 o_ft

or at negative

sures and reduced current draw. Correct
connection
LI and L2 on contactor.

clothing,

charging
in accordance

EXAMPLE:

• Do not overcharge

or subcooling

must be weighed

respectively.

the following:

rotation,

charge

on uniI raling plale.
on charging

tables

of maintenance

areas,
such as coastal
frequent mainlenance.

may

vary

applications,

depending
which

may

on geographic
require

Table 3--Superheat
EVAPORATOR

Charging

OUTDOOR
TEMP
(OF)

(°FWB)

....

......

.......

100

........

105

........

110

..........

115

..........

--Where

ENTERING AIR TEMPERATURE

a dash appears,

do not attempt to charge

system under these conditions

or refngerant slugging

may occur

Charge

must be weighed in.NOTE:

Superheat °F is at low-side service pod,

Table 4---Required Suction-Line Temperature
SUPERHEAT

SUCTION

PRESSURE

AT SERVICE

(°F)

61,5

64.2

67.1

70.0

73.0

PORT (PSIG)

i E..ivl I-

76.0

79.2

82.4

85.7

53
55

55
57

63
65

38tkb5si

PC 101

Catalog No. 563-754

Printed in U.S.A.

Form 38TKB-5SI

Pg 8

m98

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Replaces: 38TKB-3SI

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
Linearized                      : No
Page Count                      : 8
Page Layout                     : SinglePage
Page Mode                       : UseNone
Producer                        : Goby Monitor Application version 3, 2, 1, 4
Create Date                     : Fri Apr 20 12:51:05 2007
Author                          : 
Title                           : 
Subject                         :

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Carrier 38TKB018 SERIES330 User Manual CONDENSING UNIT Manuals And Guides L0211022

CARRIER Air conditioner/heat pump(outside unit) Manual L0211022 CARRIER Air conditioner/heat pump(outside unit) Owner's Manual, CARRIER Air conditioner/heat pump(outside unit) installation guides

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