Carrier 38YDB024 SERIES300 User Manual HEAT PUMP Manuals And Guides L0411018

CARRIER Air conditioner/heat pump(outside unit) Manual L0411018 CARRIER Air conditioner/heat pump(outside unit) Owner's Manual, CARRIER Air conditioner/heat pump(outside unit) installation guides

User Manual: Carrier 38YDB024 SERIES300 38YDB024 SERIES300 CARRIER HEAT PUMP - Manuals and Guides View the owners manual for your CARRIER HEAT PUMP #38YDB024SERIES300. Home:Heating & Cooling Parts:Carrier Parts:Carrier HEAT PUMP Manual

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38YDB
WeatherMaker TMTwo-Speed Split System
Heat Pump with Puron® Refrigerant

HEATING & COOUNG

Visit www.carfier.cmn

Installation and Start-Up Instructions
NOTE:
Read
installation.
This symbol

the

entire

instruction

indicates

a change

SAFETY
Improper
or

installation,

use

can

conditions

which

damage.

Consult

distributor
installer
when

or agency

modifying

packaged

codes.

Have

extinguisher

Electrical

When

you

agency,

information.

glasses,

protective

cloth

for brazing

Read

these

clothing,
operations.

instructions

thor-

included

in literature

codes

and National

A98516

requirements.

on the unit

the signal words

your

instructions

This is the safety-alert

this symbol

The qualified

kits or accessories

local building

for special

other

installing.

or cautions

be alert to the potential

Understand

when

safety

available.

(NEC)

see

service

or property

to the individual

quenching

all warnings

safety

manuals,

injury,

or assistance.

Refer

to the unit. Consult

Code

Recognize

installer,

Wear

Use

and follow

and attached

personal

the kits or accessories

gloves.

the

maintenance,

shock,

must use _actory-authorized

all safety
fire

death,

service,

electrical

for information

and work
oughly

cause

this product.

with

fire,

a qnalified

or branch

starting

since the last issue.

alteration,

explosion,
may

before

CONSIDERATIONS

adjustment,

cause

manual

and

for personal

DANGER,

symbol

z_ •

in instructions

Fig. 1--Model
2. Ensure

injury.

WARNING,

that vapor

capacity

CAUTION,

3. Run

severe

4. When passing

injury

WARNING
signifies
or death. CAUTION
would

result

damage.

hazards which could
is used to identify

in minor

NOTE

in enhanced

or death.

personal

injury

result in personal
unsafe practices
or product

is used

to highlight

suggestions

installation,

reliability,

or operation.

injury
which

which

5. Avoid
joists,

will result

installing,

trical disconnect
may

or servicing

switch

be in the OFF

than

with

a suitable

switch

cause personal

must

1 disconnect

injury

warning

label.

Refrigerant
R-22

main

position.

Lock

Electrical

7. When

elec-

direct tubing

rated

for R-410A.

acceptable.

systems

Check

Some

R-22

with your

INSTALLATION
NOTE:

In some

gas pulsations
i. Locate

There

8. Isolate

out and tag
shock

Manufacturer

sound

equipment

than

hanger

that

improper

installation

may not be

may disturb

tubing
comes

decks, etc. where unit

customer.

Catatog No. 533-80088

use hanger

avoiding

caulk.

(See Fig. 2.)

pipes, duct work, floor

and brick.

from joists
in direct

straps

and studs with a

contact

with tubing.

Printed in USA

the

and

insulation

by using

metal

sleeves

of insulation.

insulation

system
same

or factory

on control
instruction.

box

is pliable

cover

refrigerant
size

and completely

sur-

Maxinmm

Check

For proper

charging

liquid-line

for operation

connected

tubing.

using

or in the

charge

when

accessory
charge

size is 3/8

ft of

unit opera-

information

Charge

with

located

section

of this

in. O.D.

for all

applications.

IMPORTANT:

Only

pump

(bi-flow)

liquid

line filter

driers

from your local

distributor.

Form

are 1 in. wide

(See Fig. 2.)

tube.

refrigerant

or change at any time, specifications

which

insulation.

from

to shape

tubing

tion, check

residential

straps

of tubing

unit contains
unit

IMPORTANT:
to

of equipment.

patios,

vapor

field-supplied

in the living area has been traced

reserves the right to discontinue,
PC 101

pressures

indoor

distributor.

unit away from windows,

operation

at higher
that service

service

the wall, seal opening

with water

and walls,

refrigerant

bent to conform

can

RECOMMENDATIONS

cases noise

from

operate

possible

silicon-based

contact

to shape

9. Ensure

Be certain

tubes through

floors,

necessary,

conform

or death.

systems.

refrigerant

6. Do not suspend

Outdoor

standard

as directly

or other pliable

wall studs,

rounds

Puron_;

and bends.

rigid wire or strap which

system,

switch.

are appropriate

(See Fig. 2.)

modifying,

be more

tubes

tunas

with RTV

¥!I K'JI-IFtIII _[_
Before

refrigerant

unnecessary

and property

tube diameters

of unit.

and NOTE. These words are used with the safety-alert
symbol.
DANGER
identifies the most serious hazards which will result in
personal

and liqnid

38YDB

or designs

38YDB-5Sl

install

the

without notice
Pg 1

factory-supplied
&ier.

Obtain

Puron,_,P_ heat
replacement

filter

and without incurring obligations.
2-03

Replaces:

38YDB-4Sl

3/8-1N

NOTE: Avoid contact between tubing and structure

DIA TIEDOWN

KNOCKOUTS

IN BASEPAN
(2) PLACES

OUTDOOR

WALL_

INDOOR WALL7

CAULK
(---__F

[!_/_

LIQUID TUBE

ON_!A

VAPOR TUBE

SULATI
THROUGH THE WALL

_...,_JOIST

HANGER STRAP--- x
(AROUNDVAPOR
'_

-i]

VIEW

FROM

3/16"

TOP

_--INSULATION

A97548
MINIMUM
MOUNTING PAD
DIMENSIONS

UNIT SIZE

TUBE_,

TIEDOWN

KNOCKOUT

LOCATIONS

VAPOR TUBE

1"M,N.
-----I

LIQUID

024

Support Feet
19 X 24

Snow Stand
26 X 32

A
2-!3/16

B
6-15/16

036-060

26 X 32

3! X 35

9-3/4

TUBE

Fig. 3--Mounting

Unit to Pad

SUSPENSION
A94028

Fig. 2--Connecting

Tubing Installation

Step 4_Operating

l--Check

UNPACK
Move
unit.

Equipment

Ambient

and Job Site

UNIT

to final location.

Remove

INSPECT

EQUIPMENT

File claim

with shipping

is damaged

carton,

company

taking

care not to dmnage

prior to installation

if shipment

or incomplete.

Step 2--Install

on a Solid,

Level

Mounting

Step

5--Elevate

02"local codes

down

should

bolts

provided

require

used

fastened

base pan size and knockout

On rooftop
unit above
structure.

applications,

mount

a load-bearing
Arrange

and minimize

of vibration

rooftop

POE

pattern

in Fig. 3

hole location.

on level platform
members

may

ice

in base

pan

may

cause

or frame.

to adequately

Place

unit

per local

above

climate

estimated

and code requirements

snowfall

level

and

ensure

to provide
adequate

drainage
installed.

of the unit. Fig. 4 shows unit with accessory
support feet
Use accessory
snow stand in areas where prolonged

freezing

temperatures

tion Instructions

are encountered.

packaged

Refer

to separate

Installa-

with accessories.

set fi'om

support

to building.

clearance

unit

Consult

local

applications.

Do not allow POE lubricant
material.

knockouts

wall and isolate unit and tubing

supporting

transmission

governing

to pact, tie

through

in unit base pan. Refer to unit mounting

to detemfine

and

Pad

the unit be attached

and

Unit

Accumulation
of water
equipment
damage.
Elevate

It" conditions

codes

locate unit at least 6 in. above roof

The minimum outdoor operating ambient in cooling mode is 55°F,
and the maxinmm outdoor operating ambient in cooling mode is
125°F.

INSTALLATION
Step

On rooftop applications,
surface.

to come into contact

deteriorate

certain

types

with roofing
of

synthetic

roofing.
NOTE:

Unit must

Step 3--Clearance

be level to within

±2 ° (±3/8

in.ift).

Requirements

When

installing,

allow

wiring,

refrigerant

piping,

sufficient

space

service

end of unit and 48 in. above unit. For proper airflow,

and service.

fbr

Allow

airflow
30-in.

clearance,
clearance

a 6-in.

clearance on 1 side of unit and 12 in. on all remaining
sides nmst
be maintained.
Maintain
a distance
of 24 in. between
units.
A98533

Position
directly

so water,
on unit.

snow,

or ice from

roof

or eaves

cannot

Pall

Fig. 4_Accessory

Support Feet

8. Install vapor elbow (See Fig. 6B) with equalizer adapter to
suction tube of line set and suction connection
to indoor coil.

SENSING
BULB
EQUALIZER

Adapter

has

equalizer

robe.

9. Connect
vapor

equalizer

10. Attach

TXV

11. Proceed

Fig. 5--TXV

Installed

proper

unit

operation

with

designed

to operate

install with
devices.

balance

port
with

evaporator

and

reliability,

hard

shutoff

unit

balance

port hard shut-off

(_an coil)

two-speed

units.

efficiency

obtain

units

Puron(P_ two-speed

coils having

must

R-22

Remove

unit includes

includes

FURNACE

factory

a factory

supplied

TXV

not

robe metering

shutoff

TXVs

TXV.

IMPORTANT:

The

Install

the

inlet

filter

TXV

should

with

from indoor
be mounted

and in a vertical,

tube vertically

bi-flow,

&ier must

be installed

units.

to the

position.

Avoid

A _actory-supplied

bulb

in the liquid

IMPORTANT:

to atmospheric

2. Remove

indoor

at piston

back-up

wrench
piston

retainer,

TXV

body

pressure

inlet.

for

not to damage

5. Reinstall
6. Replace

piston

retainer

in piston

sealing

(Replace

to prevent

attach

to TXV

avoid damage

adapter
(See

to tubing

or valve.

"IN'," to liquid line. Avoid
valve.

nut

Use backup

tube

coil and

wrench

heat which could damage

elbow
of line

SOLENOID
For

reliigerant

greater
and.or

through
panel

wrench,

in item 3).

supplied

suction

"IN,"

damage

male

(See

insulation

tape

of sensing

connection

opening

fitting panel

in place.

to liquid

line.

equalizer

connection

flare

bulb strap

connector

adapter

to indoor
for

wrench

to prevent

to
coil.

attaching

tube of TXV to 1/4-in. equalizer
Use backup

Avoid

valve.

(See Fig. 6B) with
set and vapor

in same location

positioning

and install

marked
could

fitting on
damage

fitting.
with remainder
APPLICATIONS,
VALVE
piping

of unit

installation.

INSTALL

LIQUID-LINE

(LSV)
arrangements

than 50 ft or when
outdoor

Puron(P_

inlet tube through

_aetory-supplied

robe. (See Fig. 6B.)
eqnalizer

approved

tube inside cabinet

with

a 1/4-in.

in fitting door prior

and backup

(removed

has

line adapter.

copper

See Fig. 7 for correct

tube

barrier

valve.

equalizer

LONG-LINE

tube

opening

fi'om using

bulb

protective
pan.

Use wrench

clamp

of TXV,

vapor

15. Proceed

Sweat inlet of TXV, marked

excessive

a 5/16-in.

tubing.

panel.

heat which

line

equalizer

and wrap

(See Fig. 6D) to inlet of indoor
Fig. 6A) outlet.

using

Use

3/8-in.

Adapter

vapor
shield

around

in fitting

inlet

14. Connect

r.,l [_

Insulate

excessive

damage.

7. Sweat swivel

fi'om cabinet.

cabinet.

to drain

equalizer

to tubing

equalizer

vapor
wrench

the

was removed

(large hole)

retainer

closed.

TXV bulb to vapor

13. Install

To prevent damage to the unit, use a brazing
TXV with wet cloth.

coil has not been
than 15 minutes.

robe off flush with vapor

line connection

panel

(See Fig. 6E).
bulb.

body.

indoor coil inlet tube. Use back-up

TXV.

on flare connections

tube inside

damage

TXV support

12. Sweat
piston.

clamp

wrench

(Fig. 6A) with

damage

Fig. 6C).

Use

surl_ace of O-ring.
4. Remove and discard _actory-installed
if O-ring is damaged.)

a backup

small hole in service

11. Route

careful

fbr more

support

stub-tube

fitting

8. Install

line.

damage.

being

and ensure

pressure

fi'om vapor

Route

9. Reinstall

i. Ensure coil has not been exposed
more than 15 minutes.

3. Remove

FV4ANB006,

supplied

Port Puron(r_" TXV

cut equalizer

suction

to replacing

10. Attach

robe

with

with factory

refrigerant

to prevent

as original

inlet

a bi-flow
for Puron(P_

to mbing.

equalizer

to avoid

TXV in Place of Piston

coil

fbr 38YDB037

panel and fitting door

TXV using
damage

7. Braze

coil as follows:

to prevent

with

designed

hard

coil and install
as

upright

down.

equipped

or Non-Balance

and save TXV

necessary

TXV kit to indoor

Installing

TXV

5. Using wire cutters,
inside cabinet.

for Puron(P_ two-speed

piston

installation.

fiactory

be replaced

3. Remove
driver.

TXV through

coil as possible

approved

equipped

designed

AccuRater_

field accessory

mounting

_actory

line using

bulb with factory-

is not required.

rating

coil access

is required.

existing

indoor

come

specifically

No changeout
Remove

coils

TXV kit. No other

kit.

(:OILS

furnace

of suction

TXV specifically

2. Remove

6. Remove
Puron'_

comes

any existing

prevent
size unit

of unit

to atmospheric

4. Remove

The 38YDB037

fitting

specifically
unit.

capillary

attaching

bulb.

Changeout

TXV must

Replacing

TXV

for

tape (See Fig. 6E). See Fig. 7 for correct

of sensing
with remainder

exposed
installed

section

(See Fig. 6C.) Insulate

Indoor

i.
For

connector

COILS

fancoil

Step 6--Check Indoor Expansion Device

bulb to horizontal

insulation

positioning

A91277

flare

tube of TXV to 1/4-in. equalizer

bulb strap provided.

FAN

male

line adapter.

supplied

THERMOSTATIC
EXPANSION
VALVE

a 1/4-in.

unit is greater

elevation

with

equivalent

difference

than ± 20 ft, follow

between

lengths
indoor

all requirements

SENSING

80ICLOCK

BULB

4 O'CLOCK
A00399

Fig. 7--Positioning

Table 1--Refrigerant Connections and
Recommended Liquid and Vapor Tube Diameters
(In.)

BULB
INSULATION
TAPE

UNIT
SIZE
A01418

Fig. 6--TXV
of the Long-Line
and Service

Guideline

Puron,_.R)Refrigerant.
line, install

LSV

Kit Contents

section

Manual_ir

in the Application

Conditioners

If required

and Heat

by Long-Line

kit P.N KHALS0401LLS

for Puron(R_ Heat

Pump.

LSV

should

coil as close as possible

feet).

13 for wiring

(See Fig.

Instructions

included

IMPORTANT:
Step 7--Make

Piping

Guidedesigned

between

filter

to outdoor

unit (within

the Installation

diagram.)

with accessory

Flow arrow

Using

Application
specifically

be installed

drier and indoor

Guideline

Pumps

toward

outdoor

LIQUID
Connection
Diameter

VAPOR

Tube
Diameter

Connection
Diameter

VAPOR

Tube
Diameter

(LONG-LINE)

Connection
Diameter

Tube
Diameter

024

3/8

5/8

3/4

036

3/8

3/4

7/8

037,048

3/8

7/8

060

3/8

7/8

1-1/8

7/8

1-1/8

Notes:
1. Tube diameters are for lengths up to 50 equivalent ft and/or 20 ft vertical
differential
2. Do not increase or decrease tubing sizes.
3. If required by local codes, Pressure Guard TM kit is available See Product
Data Digest for part numbers.

kit.

nmst point

of Sensing Bulb

If refrigerant tubes or indoor coil are exposed to atmosphere, they
must be evacuated to 500 microns to eliminate contamination and
moisture in the system.
OUTDOOR !EXIT CONNECTED
INDOOR UNIT

unit.

Connections

TO FACTORY-APPROVED

These outdoor units are carefully evaluated and listed with specific
indoor coils for proper system perfomlanee.
Relieve
repair

pressure

and recover

or final unit disposal

Use

all

service

including

ports

solenoid

all refrigerant

before

to avoid personal

and

open

all

IMPORTANT: Do not apply to indoor coils that are not factory
approved combinations.
IMPORTANT: For 036
size
units
matched
with
the

system

injury or death.

flow-control

devices,

valves.

FV.40FKiFK005 or the FVi40FKiFK006, or lbr the 38YDB048
used with the FVi40FKiFK006, a piston change is required. Refer
to the KHAPX0201CPA Installation Instructions for details.

r:l ['_lliiIoIll

INSTALL ADAPTER
Do not

leave

minimum
extremely

system

open

to atmosphere

required
for installation.
susceptible
to moisture

ends of tubing

sealed

during

any longer

than

POE oil in compressor
is
absorption.
Always keep

2. Check to be sure outdoor piston is properly installed in liquid
line service valve.

installation.

3. Locate plastic bag taped to unit containing adapter tube.

¥:I [,.1._luijl[ol'd
If ANY refrigerant tubing is buried, provide a 6 in. vertical
rise at service valve. Rel_dgerant tubing lengths up to 36 in.
may be buried without further special consideration. Do NOT
bury lines for lengths over 36 in.
Outdoor
tubing

units may be connected
package

size and condition.
for equivalent
50

Tubing

lengths

ft, substantial

the

Service

Manual

and

Refrigerant

Refer

to Table

1 for field

requirements.

losses

in the Application

to minimize

of correct

and Heat
diameters.

REFRIGERANT

TUBING AND FILTER DRIER

occur.

Guideline
Pumps

Refer

5. Remove adapter tube from bag and connect threaded nut to
liqnid service valve. Tighten nut finger tight and then with
wrench an additional i/2 tum (15 ft-lb). DO NOT OVERTIGHTEN!

beyond

will

Using

and
Pu-

losses.

tubing

4. Remove Teflon washer fi'om bag and install on open end of
liquid service valve.

1 are adequate

requirements

performance

Conditioners

using accessory

grade tubing

listed in Table

up to 50 It. For tubing

capacity
Air

section

refi'igerant

diameters

recommendations

ron_

accessory

to indoor

or field-supplied

TUBE

i. Remove plastic retainer holding outdoor piston in liquid line
service valve.

to Table

2 for

Connect vapor tubing to fittings on outdoor unit vapor service
valve. Connect liqnid tubing to filter &ier. (See Table 1 and Fig.
9.) Connect other end of filter drier to adapter tube on liquid line
smwice valve.

Table

2--Accessory

REQUIRED FOR LONG-LINE
APPLICATIONS*
(OVER 50 FT)
No

ACCESSORY
Coastal Filter
Support
Liquid-Line

Hard Shutoff

Solenoid

TXV

Recommended

Yesl
KHALS0401LLS

Valve for Heating

* For tubing line sets between 50 and 175 ft horizontal or 20 ft vertical differential refer to Application
Using Puron® Refrigerant. Crankcase heater and start assist are standard on two-speed units.
1 Required for all applications.

SWEAT CONNECTION

YeslNo

Guideline and Service Manual--Air

install unit in system
permissible

V.,l[qAliiIg_
To prevent

damage

to unit

or service

valves,

observe

the

following:
• Use a brazing

shield.

• Wrap
material.

valves

Braze

service

sweat

materials.
800°F).
LEAK

Consult

use

with

wet cloth

or use

using

industry

accepted

soft

solder

(materials

a heat

sink

methods

which

melt

below

local code requirements.

Use

NOTE:

Install

in indoor,

outdoor,

REFRIGERANT

and refrigerant

TUBING

deep

pulling

indoor

Never

open

first breaking

Deep Vacuum
The

coil

AND INDOOR

nmst

thermistor

system

under

(;OIL

evacuated

vacuum

requires

TUBING

unit

IMPORTANT:
rubbing

secure

size

within

440-14

per
sight

of NEC.

box.

power

Size wires

to unit

wiring

per NEC

in Product

hole

but not

Data Digest.

cabinet

must

should

occur.

metal

conduit

The

have

as uninten'upted

personal
ground

when

injury

may consist

installed

or unbroken

if an electrical

fault

of electrical

in accordance

wire

with

existing

can result in an

500
Connect

water.

pump

capable

GROUND
ground

AND POWER

wire

Connect

to ground

power

wiring

WIRES

connection

in control

to leads provided

box

as shown

for

in Fig.

this vacuum

gage or

depth. The

way of assuring

(See Fig.

CONNECT

CONTROL

Route

control

a system

10.)

24v

connect

Check

to be certain

factory

Use No. 18 AWG
thermostat

against

each

other

making

tubing

shipment.

or any

sheet

tubes are

metah

Pay

sure wire ties on feeder

tubes are

compressor

Be sure field wiring
and electrical codes,
on unit rating plate.
improper

voltage.

protection

device.
Operation

All

injury
terminal

Connections

or death,

wiring

local power

See unit rating

plate

company

of unit

on improper

control

insulated
than

wires,

wiring

(35°C

minimum)

100 ft fi'om unit,

use No. 16 AWG

voltage

drop.

be NEC

Class

grommet

and

box. (See Fig. 12.)
wire. If

as measured

color-coded

wire

1 and nmst

be separated

from

leads.

unit requires

WIRING

a minimum

of 27-va,

24v control

power.

CHECK
Check

ensure

temlinations

ensure

wires

factory

are not in contact

9--Install

wiring

are secured

Electrical

and

properly.

wire
Check

with tubing,

connections

wire

routing

sheet metal,

etc.

Accessories

GENERAL

for con'ection

for recommended

circuit

Refer

to the individual

sories when
available
Step

line voltage

constitutes

See unit rating plate.

Do not

The

on these

The liquid

units.
Airflow

SELECTION

58CVAi58CVX

provide

instructions

installing.

10--Make

----> AIRFLOW

abuse and could affect unit reliability.

must

The outdoor

Step

power to unit

box cover removed.

complies with local and national fire, safety,
and voltage to system is within limits shown
Contact

voltage

power

IMPORTANT:

do not supply

color-coded,

is located
excessive

incoming

FINAL

To avoid personal

through
in control

on both indoor
Ensure

and tight.
Electrical

wires

to leads provided

along the control

unit has not shifted during

WIRING

CHECK

Step 8--Make

NOTE:

through

electrical codes. Failure to follow this warning
electric shock, fire, or death.

to atmosphere

and a vacuum

measuring

is the most positive

to feeder tubes,

with

adequate

disconnect

and

WIRES

disconnect

control

switch

box cover to gain access

wire size shown

to minimize

to avoid

attention

POWER

wires from

ground

safety.
11.

a vacuum

of 500 microns

of accurately

method

is free of air and liquid

not

Locate

from unit, per Section

AND

than nlininmm

disconnect

cun'ent.

panel and control

and into unit

The

it open with nitrogen.

method

capable

deep vacuum

and outdoor

or below

Method

vacuum

a mininmm

FINAL

Extend

CONNECT

IMPORTANT:
without

and

above

robing.

To avoid compressor damage, never use the system compressor as a vacuum pump.
tubes

and Heat Pumps

may fluctuate

between

circuit

accessible

access

M [qAli_o]3

Refrigerant
microns.

only

branch

GROUND

smaller

Leak test all joints

wire

unit starting

Remove
wiring.

voltage

copper

ROUTE

provided

CHECKING

EVACUATE

NOTE:
unit.

from and readily

and

where

Conditioners

limits.

NEC to handle

connections

Do not

REQUIRED FOR
SEACOAST APPLICATIONS
(WITHIN 2 MILES)
Yes

Feet

Puron® Balance-Port
Puron®

Usage

high-

and

packaged

with

line solenoid

See Fig.

kits or acces-

valve accessory

13 for wiring

diagrmn.

Selections
FOR 58CVA

Non-Condensing
low-speed

blower

58CVX
Variable
operation

FURNACES
Speed
to

Furnaces
match

the

Table 3--Required
LIQUID

PRESSURE

SERVICE

REQUIRED

SUBCOOLING

VALVE

(PSIG)

SWEAT/FLARE
ADAPTER

Liquid-Line Temperature (°F)
TEMPERATURE

(°F )
5

174

181

188

195

202

209

216

223

230

237

244

251

258

265

272

279

286

293

300

307

314

321

328

335

342

100

349

102

356

103

363

105

100

370

106

101

377

107

102

384

109

104

391

110

105

100

398

112

107

102

405

113

108

103

412

114

109

104

419

115

110

105

100

426

117

112

107

102

433

118

113

108

103

440

119

114

109

104

447

120

115

110

105

454

122

117

112

107

461

123

118

113

108

468

124

119

114

109

475

125

120

115

110

482

126

121

116

111

2000

489

127

122

117

112

1500

496

129

124

119

114

1000

503

130

125

120

115

500

510

131

126

121

116

517

132

127

122

117

524

133

128

123

118

531

134

129

124

119

538

135

130

125

120

545

136

131

126

121

552

137

132

127

122

559

138

133

128

123

566

139

134

129

124

573

140

135

130

125

580

141

136

131

126

587

142

137

132

127

594

143

138

133

128

SEAL

601

144

139

134

129

608

145

140

135

130

PISTON

BOD'_

LIQUID SERVICE

VALVE

A01214

Fig. 8--Liquid

Service Valve with Sweat Adapter
Tube
LiQUID-LiNE
FILTER-DRIER

SERVICE
VALVE

A01215

Fig. 9--Filter

Drier with Sweat Adapter
Liquid Tube

Tube and

500O
4500
4000
LEAKIN
SYSTEM

3500
z 3000
O
2500
O

VACUUM
TIGHT
TOO WET
TIGHT
DRY SYSTEM
0

MINUTES
A95424

Fig. 10--Deep
capacities

of the compressor

recommended
labeled SW1,
Installation,

mines

at high and low speeds.

To select the

airflow and for adjustments
to the manual switches
AiC and CF on the control board refer to the furnace
Start-Up,

58CVAi58CVX
technician

Vacuum Graph

utilizes

to select

the airflow

and

the proper
during

Operating

a control
high

center
airflows.

speed

Instructions.

that allows
The

compressor

The

the installing
switch

deter-

operation.

Air-

flow for high and low speed can be calculated at either 350 CFM
per ton or 400 CFM

per ton based

on the positions

of SW1-5.

Table 4_LED

Control

AIRFLOW

Function Light Code

The

FK4,

FV4,

FOR FK4, FV4, OR 40FK

and 40FK

provide

high-

FAN

COILS

and low-speed

blower

CODE

DEFINITION

Constant flash

No demand

No pause
1 flash
w/pause

Stand by
Low-speed operation

2 flashes
w/pause

High-speed

technician
to select proper
airflows.
The ORANGE
TYPE
JUMPER
wire
should
be
set to
HP

SYSTEM
EFF
or

is used to

3 flashes

SELECTION

operation

Outdoor coil thermistor failure

w/pause
3 flashes

to match

speeds.

To select

40FK

Outdoor ambient thermistor failure

w/pause
4 flashes

operation

EASY

COMFORT.

cooling.

slight

Fancoil

pause
4 flashes

Thermistor

out of range1-

5 flashes
pause
1 flash

Low pressure switch trip

5 flashes
w/pause
2 flashes

High pressure switch trip

Compressor Vc/V . trip

Installation

high-

to the

blower

the

ADJUST

size in tons

jumper

airflow

for setting

factory

is used

tonnage.

(See

airflow.)

This

required

offdelay

utilizes
installing

JUMPER

nominal

selected

blower

combinations

allows

SIZE
unit

CFM

Instructions

and low-speed

For other

ACiHP

adjustments

and low

refer to the FK4, FV4, or
that

the outdoor

fan coil has an adjustable

board

The BLUE

to match

at high

The FK4, FV4, and 40FK

control

The BLACK

make

airflow,

Instructions.

SELECT

airflow

of compressor

recommended

Installation

select

the capacities

set at 90 sec. for

operation.

of equipment

consult

the

Product

Data

Digest.

6 flashes
w/pause
Constant light
No pause
No flash

Board failure

Step

1 l--Start-Up

To prevent

compressor

damage

or personal

injury,

observe

the lbllowing:

• Do not overcharge

*Function light signal order of importance in case of multiple signal request;
is most important
1-Check both thermistors to determine which is faulty

system

with refrigerant.

• Do not operate

unit in a vacuum

• Do not disable

low-pressure

or at negative

¥:I [qAli_0]
DISCONNECT
PER N. E. C. AND/OR
LOCAL CODES

To prevent
clothing,
CONTACTOR

personal

injury

and gloves

pressure.

switch.

wear

when

"/1
safety

handling

glasses,

refrigerant

protective
and observe

the following:
Back

FIELD POWER
WIRING

_Fk__

seating

service

valves.

Fully

before

removing

repair

or final unit

valves

back

seat

are not equipped

(counter

with

clockwise)

Schrader

valve

system

gage port cap.

O
FIELD GROUND

-<29

WIRING

GROUND
LUG
A91306

Fig. 11--Line

Follow
i.

Power Connections

these steps to properly

The outdoor
operates

Table 5--Defrost

heater

Dip Switch Settings

TIME

DIP SWITCH #1

DIP SWITCH #2

down

60
90

down
down

up
down

120

AIRFLOW

SELECTION

The 58MVP

Condensing

and low-speed

blower

FOR

58MVP

Furnaces

to match

when

NOT!=:

Starting

provide

high-

of com-

and possible

4. Close

a control

5. Set room

proper

airflows.

that

allows

For adjustments

AiC and CF and recommended
Installation
airflow
low-speed
switches.

the

Instructions

is determined
airflow

lbr

installing

to the manual
switch

setting

determined

positions,

required

by the position
is

technician

switches

labeled

refer to Furnace

airflow.

of the AiC
the

to select

position

High-speed

Replace

point

liquid

and vapor

valve

stem(s)

energize
NOTI=:

desired

Carrier

and

minute

from operating

disconnects

staging

valves.
and

is opened

caps

to refrig-

with wrench.

to energize

at desired

seated

caps finger tight and tighten

system.

temperature.

ambient

and

electronic

thermostats

Be sure the set

is set

low

are equipped

timer. This timer prevents
at high capacity

for 15 minutes

between

room
adjust

tube service

fi'ont

enough

speed.

capacity
capacity,

Replace

indoor

of 12 hr of
in compressor

to the compressor.

stem caps after system

thermostat

is below

only, set
disconnect

a mininmm

1/12 turn (20 ft-lb torque)

electrical

switches,
the

with

heater

may result

which

crankcase

and close power

without

damage

heater

Energize

To energize

start-up,

erant flow (back seated).

pressor at high and low speeds. To select recommended
airflow,
refer to the 58MVP Installation
Instructions.
The 58MVP utilizes
center

to initial

seat (open)

additional

unit.

the compressor

chattering

installed.

starting

is OFF.

to OFF position

heat prior

is shipped

with a crankcase

the compressor

crankcase

3. Unit

start up the system:

is equipped

24 hr before

2. Fully back

the capacities

unit

indoor thermostat
to unit.

FURNACES

Variable-Speed
operation

disposah

temperature

unless

a 15system

until unit has been operating

in low

there

is at least

and thermostat

the set point

with

the dual capacity

at least

a 5°F difference

set point. To force high

5° below

room

ambient

for

Table 6--Factory
FAILED COMPONENT

Defaults

FUNCTION

DEFAULT
Defrost is initiated based on coil

Defrost Initiation
Ambient

temperature

Thermistor

No delay function

Defrost Initiation and Termination

Defrost occurs at each time interval, but
terminate after 5 minutes

Outdoor Coil Thermistor

cooling or 5 ° above room ambient for heating.

NOTE:

6. Set room thermostat to COOL or HEAT and fan control to
AUTO or ON as desired. Wait for appropriate time delay(s).
Operate unit for 15 minutes. Check refrigerant charge.
NOTE: Ifunithas not operated within the past 12 hr or following
a unit power-up, upon the next thermostat high- or low-speed
demand, unit operates for a minimum of 5 minutes in high-speed.
Step 12--Check

and time.

One minute fan off delay in cooling
greater than or equal to 100°F

In heating

pressures

and operating
outdoor
indoor

check

If accessory

conditions

fan to cycle,

in correct
NOTE:

refrigerant
When

charge

pressure

cause vapor

pressure
charge

If in doubt,

only

switch
switch

and thereby

in cooling

remove

when

is applied
or lower

charge

and weigh

charge.

charging

must be weighed

ozift of 3/8-in.

refrigerant
vapor

check refrigerant

dry bulb temperature.

charge

Charge

mode,

are stable.

liquid

necessary

during

in accordance

line above

heating

season,

with unit rating

or below

plate ±0.6

15 ft respectively.

EXAMPLE:
Service

valve

valves.

is connected
fully back
when
UNIT

gage

ports

To prevent

are not

personal

equipped

injury,

to the valve gage ports before
seated

handling

position.

with

Wear

moving

safety

glasses

valves

off

is shown

on unit rating plate.

device

manifold
charge

To check
Procedure.

Charge

in cooling

charge

refrigerant

mode,

in heating

into

refer

type metering
suction

refer to Cooling

mode,

COOLING

With unit operating,

Puron¢_ units with liquid using a commercial

check

charge

shown

on charging

in both heating
tables

side of access

line.

Only

to Heating

Procedure.
Check

Chart

and cooling

located

by following

on unit

procedure

pink charging

label on

panel.

to the compressor.

COOLING
i.

ONLY

Operate

PROCEDURE

unit

a minimum

15 minutes

before

checking

charge.
2. Measure
lating

liquid

service

an accurate

3. Measure

valve pressure

line

temperature

thermistor
type or electronic
outdoor coil.
4. Refer

to charging

5. Refer

to Table

temperature

label

line pressure,

HEATING
To check
Heating

attaching

thermometer

the point
measured

subcooling

where

system
Pump

CHARGE
operation

Charging

whether

operating

pressure

If pressure

refrigerant

charge

refrigerant

charge.

subcooling

if liquid

at a specific

If low capacity

demand,

heating

relationship

and air temperature
and temperature

entering

thermostat.

returns

charge

or until

second

stage

cooling

stage and second
shut off.
NOTE:

Ifunit

a unit

power-up,

demand,

unit operates

NOTE:

Outdoor

motor

system

utilizes

between

system

indoor and outdoor
on chart,

Do not use chart

system
to adjust

within

first

high-

will

or following
or low-speed

on high speed.

to operate

for

ambient

one

is greater

unit is operating
in low-capacity
coolpressure will be higher than a standard
capacity

operation.

This normal

opera-

operating

with typically

larger

high
of the
by

capacity
indoor
third

heating

indoor

thermostat.

stage and second
shut off.
NOTE:

Ifunit

a unit

power-up,

is energized
thermostat.

stage

After

back

second

are satisfied,

has not operated

unit operates

(Y1 and Y2) by the second
Auxiliary

(Wl).

stage heating

upon

With

(Y1), the outdoor fan and low capacity
If low capacity cannot satisfy heating

stage

satisfied, the unit returus to low capacity operation
is satisfied or until second stage is required again.

demand,

both first

the compressor

of 5 minutes
continue

stage

When

the past 12hr,

thermostat

will

a 3-stage

demand,

to the

cooling

OPERATION

This chart

stage is satisfied,

again.

are satisfied,

or high-speed

refer

With

satisfy

until

shuts off, when outdoor

temperature

unit.

second

is required

for a mininmm

fan

cannot

operation

the next

minute after compressor
than 10O°F.

single-speed

After

has not operated
upon

thermostat.

fan and low capacity

(Y1 and Y2 or just Y2) by the

low-capacity

if temperature

cycle,

do not match

may not be correct.

satisfied

controlled

exists

is energized

stage of indoor

unit

stage

on outdoor

are energized.
high capacity

call for first stage heating
compressor
are energized.

line

indoor

compressor

This product

liquid

cooling

(Y1), the outdoor

HEATING

PROCEDURE
during

a 2-stage

tion is due to the reduced
indoor and outdoor coils.

smwice valve pressure.

temperature

Instructions

a correct

line near

temperatures.

required

utilizes

NOTE:
When two-speed
ing, system vapor (suction)

an accurate

subcooling

liqnid

add refrigerant

CHECK

and insu-

to liquid

than indicated
or reclaim refrigerant
Allow a tolerance
of ± 3°F.

indicates
units.

for required

3. Find

intersects

6. To obtain required
higher
lower.

by attaching

Puron,_,R3gage to smwice port.

liquid

line set:

Functions and Sequence of Operation

call for first stage cooling

the

NOTE:
Unit is to be charged ill high capacity only. Charging in
low capacity
may cause compressor
chattering
and possible
damage

for a 25-ft

6 oz of additional

OPERATION

This product

second

Adjust

required

The outdoor unit control system has special functions. The
following is an overview of the two-speed control functions:

charge

hose.

charge

i0 ft X 0.6 ozift

Step 13--System

and gloves

refi'igerant.

charge

additional

25 ft - 15 ft

CHARGE

Factory

back

To calculate

Schrader

make sure gage manifold

the next

within

for a mininmm

heat

of heat

until first stage
When both first

the compressor

the past 12hr,

thermostat

high-

of 5 minutes

will

or following
or low-speed

on high speed.

PROGRAMMABLE
THERMOSTAT
MODEL 2S

40FK/FV4
FK4
FAN COIL

1_
24 VAC

HOT

FAN

[_-

COOL/HEAT
STAGE 1

[_-

....

HEAT

COOL/HEAT
STAG E 2
HEAT STAGE

SINGLE-STAGE
FURNACE

TWO-SPEED
HEAT PUMP

RVS COOLING

-- -E>__,___z___%_._E:l

COOL/HEAT
STAGE 1
RVS COOLING

THERMIDISTAT
CONTROL
MODEL RH

TWO-SPEED
HEAT PUMP

]

STAGE

..... 43......

.... D.

--q_

COOL/HEAT
STAGE 2

.....£]-.
....r_

--q_
--q_

24 VAC HOT

24 VAC COMM

FAN

..... _ ...... -_qZ]

N-

-- -El-.

--q-El

..... 4:_::.--_

Fig. 12--Typical

24V Circuit
10

Connections

(Cont'd)

LEGEND
24 VOLT FACTORY WIRING
24 VOLT FIELD WIRING
FIELD SPLICE CONNECTION

24-V COIL (HN61 KK324)
RELAY
SPDT, PILOT DUTY
OR EQUIVALENT
R_

Hb./O

HUMIDISTAT, OPENS ON
HUMiDiTY RiSE (HL38MG026)

AFS

AIRFLOW SELECTOR

RELAY COIL

A03038

WIRING

DIAGRAM

i. Wiring

must

2. Underlined
3. Refer

NOTES:

conform

or local

letter on thermostat

to indoor

must

Model

control

codes.

terminal

unit Installation

4. Non-Programmable
5. Furnace

to NEC

indicates

Instructions

2S01

B, when used

its own second-stage

its usage.

For example:

for any additional
in heat pump

operation

features
installations

via furnace

control

OW2

means

and wiring
(iumper

O is energized

in cooling

mode.

information.
R19 NOT cut), uses OW2

algorithms.

Refer

to furnace

to control

Installation

reversing

Instructions

valve.

for proper

setup.
dehumidify

7. Heat pump

MUST

8. Outdoor

function

have

on FK4 or FV4 remove

a high-pressure

air temperature

sensor

nmst

9. Thermidistat

Dip Switch

No.

10. Thermidistat

Dip Switch

No. 2 should

11. Thermidistat

Configuration

Option

Fuel Dip Switch

13. The DE jumper

located

No.

in all dual fuel applications.

be set in ON position

for heat pump

be set in the ON position
10 "Dual

Fuel Selection"

terminal

must

installations.

for dual capacity
must

D (no. 4) must be set in the ON position
next to the DHUM

board.

for dual fuel applications.

be attached

1 should

at tan coil control

be turned

be removed

to enable

FK4/FV4
FAN COIL

compressor

TWO-SPEED
HEAT PUMP

24 VAC HOT

.{_

24 VAC COM

E]-

input.

J1 JUMPER

operation.

the DEHUM

12F

FAN

compressor

ON in all dual fuel applications.

for dual capacity

"-." ,'=-,
i

12. Dual

switch

J1 jumper

LLS

6. To activate

HEATSTAGE3

-,q-D

COOL/HEAT
STAGE2
F_'

I
I
_@

EY IJ JUMPER-q--N

RVS COOLtNG

COOL/HEAT
STAGE1

N/A

[]

.....

"E]_@

OUTDOOR

[--D

SENSOR
"7
CONNECTIONL __D
A03039

Fig. 13--Typical

Solenoid Valve Wiring

Table 7--Two-Speed Compressor
(Winding Resistance at 70°F + 20 °)
03

1:_

WINDING

024

036/037

048

060

Start (S-C)

2.280

1.850

1.459

0.740

Run (R-C)

0.770

0.745

0.552

0.356

will continue
off when

to operate

the outdoor

After termination
Low Pressure
_ Switch Connector
High Pressure
Switch Connector
*-Thermistor
Connection

DEFROST

NNNNNNNN_
o_:_

.....

to either

set dip switches

The

Reserved for
Future Use

Defrost
control
A01192

F[_'CTION

A system

control

unit

control

indication
codes

signals

Fig.

during

for several

and definitions.

light is located

14.) The
system

Table

operations.

called

energizes

4 also provides

provides

See Table
the order

control

board

FACTORY

one

code

(the most

will

be displayed

recent,

on the

4 for

with the highest

outdoor

unit

Table

6 for default

ONE MINUTE
compressor

there

is a 1-minute

the

motor

rotates

eccentric

CHANGE

TIME

speeds

time

fan motor

When

delay

remains

fi'om high to low or low to high,
before

compressor

operates

clockwise.

Both

the rotating

the

direction

becomes

idle and the upper
capacity

(rotates

stage

The

operation,

and upper

pistons

and both compress

operates

in single

The two-speed

control

FAN

The two-speed
operating.

l-minute

thermistor

The cycle

forced

occurs

of outdoor

W2,

and

is a 20-see

de-

delay in

DEFROST
defrost

temlinals

of 5 sec and then removing

(See Fig. 14)

it, a del}ost cycle

only if outdoor

ambient

coil temperature.

can

is less than

The cycle temlinates

COMPRESSOR

FAILURE

MOTOR

control
The

compressor

piston

The

compresses

the "start"

energizes

or compressor

speed

senses

compressor

voltage

and

the crankcase

fan

outdoor

for compressor

period

reaches

for

15 minutes

(provided

to Y2 requests

lower
wind-

overload

should

open.

during

the

fan motor

fan

running.

3 consecutive

times

is locked

a reset occurs.

no 208/230

•

failed

•

failure

•

improper

overload

volt power

compressor

will be locked

trip (refer

supply

After

attempts

appears

during

out

a Y1

and control

If 3 consecutive

can be caused

board

compressor

a code of 6 flashes

operation

until

operation

•

trips

then both

out. The compres-

by:
to Table

to outdoor

7 for con'ect

unit

contactor(s)

of start relay

to pick-up

properly

wiring
SWITCH

outdoor

pressure

de-energizes

outdoor

this time,

(6 flashes)

compressor
internal
winding resistance)

switches.

run winding.
control

of Y1 and Y2 or all Y2 requests,

•

The

and if a pressure
Outdoor

failure

PRESSURE

with

low capacity

in a combination

sor voltage

control

If Vc trip occurs

low and high capacity

heater during

energized

time delay

During

then

occur

of the compressor

there is a call for Y1 or Y2), control

responds

the

(6 FLASHES)

is less than 90v when

operation,

request,

fan any time compressor

remains

change

(Vc)

are

refrigerant.
"run"

the voltage

board.

OPERATION

energizes

outdoor

The control

control

OPERATION

board

VOLTAGE

the

oft" cycle.

OUTDOOR

across

heat

there

80°F (±5 °) or defrost

calling

refrig-

stage operation

counter-clockwise).

operation

HEATER

switch

restarts.

reversed.

CRANKCASE

lower

crankshaft,

reverses

unit's

coil

in high or low capacity,

auxiliary

termination,

FORCED

a jumper

contactor

in second

piston

single

O and

energized.

start compressor.

motor

are

when

when coil thermistor
reaches
a maxinmm
of 10 minutes.

minutes

When the compressor

ings

compressor

running.

erant.

During

DELAY

OPERATION

with

and

and ffmetion.

changes

COMPRESSOR

of
to

is time

has been accumulated

occurs

unit operates

fan being

for a mininmm

been provided
in the event of fi_ilure
and, or outdoor
coil thermistor.
Refer

function
terminated.

time (intelwal)

valve
fan. Upon

be initiated.

SPEED

When
outdoor

defrost,

outdoor

By placing

priority).

DEFAULTS

defaults
have
air thermistor

(See Fig.

Settings.

for defrost

Termination

reversing

50°F, regardless
Factory
outdoor

but can

To select defi'ost time,

or temperature

defrost

operation.

lbr. During

energizes

of signal

outdoor

Dip Switch

logic

time

FIELD-INITIATED

Only

on local

80°F (±5 °) or defrost period reaches a maximum
of 10
Defi'ost will occur at the compressor
capacity that is being

light

importance.
NOTE:

unit

on the outdoor

STATUS

dependent

set at 90 minutes

only occurs at outdoor temperatures
less than 50°F. The
initiates del}ost when outdoor coil thermistor is 30°F (±2 °)

reaches
minutes.

function

(See

control

initiated,

or less, and selected

Board

LIGHTS

STATUS

board.

coming
outdoor

on the left side of the unit board

5 for Defi'ost

dual capacity

temperature

STATUS

fan delays

DEFROST

HK38EA00_

Fig. 14--Control

selected,

It is factory

30, 60, or 120 minutes.

located

14). See Table

] O.D.F. Connection
]Crankcase Heater
Connection

cycle, the outdoor

can be field

requirements.

be changed

shuts

than 100°F.

SELECTION

interval

geographical
To Run
Capacitor

°°'c=ff
_' __c:5 _

ofa defi'ost

TIME

The defi'ost

_fS_

Thermosta_
Low Voltage
Connector

after the compressor

is greater

on for 20 sec. This allows refrigerant
system to recover
coil heat and minimize
the "steam cloud" effect.

Defrost Time
Selectors

for one minute
ambient

unit

PROTECTION
is

If the control
switch,

equipped
senses

it will respond

with

high-

the opening
as fbllows:

and

low-pressure

of the high

or low

THERMISTOR

CURVE

Defi'ost

interval

Electric

heat operation

Field

selection
during

The two-speed

control

inputs through
board.

the screw connections

Dual Capacity

Compressor

The

dual

capacity

received

Compressor
The

Internal

compressor

TEMPERATURE(DEG.

100

120

A91431

i. De-energize
2. Keep

the compressor

the outdoor

hi or low speed

fan operating

discharge
suction

control

4. After

appropriate

board

either

is reset,

delay,

light

appropriate

compressor

15-minute
Y2.

of£ If the open

delay,

then resume

after
switch

15 minute

(C-H)

closes

operation

anytime

controls

fault

after the

Low- and high-compressor
Outdoor

_an motor

Crankcase

heater

Compressor
Pressure

code

turned

on call for Y1 and.or

the following

contactor

operation

on during

operation

The electronic
and the

thermistor

Thermistors

and coil temperature.

versus

Refer

temperature.
or coil thermistor

at electronic

control.

should

The crankcase

AIR THERMISTOR

If outdoor

faults.

Step

14--Final

defrost

temperature.

fail, a

heater

all off cycles.

base

range

sense

decreases.

PLACEMENT

tape. A small piece of TXV bulb insulation

pan,

air thermistor

unit

may

have

tape may

is not properly

nuisance

placed

thermistor

out of

Checks

IMPORTANT:

monitoring

Before

leaving

all wiring

job, be sure to do the following:

Ensure

that

adding

panels

and

tubing

service

valve stem caps to 1i12-tum

covers.

is secure

Securely

in unit

_asten

before

all panels

and

Covers.

2. Tighten
3. Leave

User's

and periodic
Control Box
Side of Unit

Manual

For continuing
ment

from Top of Base Pan

failure,

owner.

AND

equipment.

Frequency

geographic

areas,

system

outlined

Checklist

and place

tight.

operation

in manual.
in customer

MAINTENANCE

high performance
periodic

Explain

past finger

requirements

Installation

CARE

THERMISTOR
PLACED
UNDERNEATHBASEPAN
(ATTACHED
TO BASE PAN
WITH ADHESIVE)

with

maintenance

4. Fill out Dealer
file.

A00430

Fig. 16--View

attached

outdoor air thermistor
underneath
unit base pan lip on
box side of unit as shown in Fig. 16. Attach to base pan

underneath

operation

which

ambient

OUTDOOR

IMPORTANT:

delays

Time/temperature

525 psi. The

overload

of the low speed (C-L)

the resistance

values

ambient

appears

with adhesive
be used.

functions:

protection

switch

exceeds

coils are 24 volts.

devices

increases,

If the outdoor

outdoor

Mount
control
board

(IPR)

contactors.

Fig. 15 for resistance

Control
control

pressures

contactor

are electronic

IMPORTANT:

The two-speed

relief

shell when differen-

by an internal

the operation

are used to sense outdoor

COMPONENTS

Two-Speed

pressure

THERMISTORS

the temperature

contactor,

delay,

that

winding

(see

low or high.

fan is turned

Time

on the status

if Y1 or Y2 inputs are on and the LPS

energize

5. If LPS or HPS has not closed

MAJOR

code

windings

7 for con'ect

Contactors

controls

Thermistors

a 15 minute

or HPS

en'or

and discharge

Control

TEMPERATURE
3. Display the
Table 4).

system

windings.

high speed

for 15 minutes.

control

motor

to Table

by an internal

is also protected

Low and high capacity

contactor.

contains

gas into compressor

compressor

Compressor

Values Versus Temperature

low-voltage

Relief

tial between
motor

Fig. 15--Resistance

mode

on the left side of the control

Refer

is protected

which relieves

24vac

compressor

provide 3500 RPM operation.
resistance.

defrost

Connections

and to minimize

maintenance

must

of maintenance

such as coastal

possible

be performed

may vary depending

applications.

equipon this
upon

DUAL CAPACITY
CONNECTION
DIAGRAM

CCH

Ill

lllll

I
TO INDOOR UNIT

A03030

Fig. 17--Wiring
DL_L CAPACITY
CONNECTION DIAGRAM

Diagram--024,

036, 048

u .......

208/230-1- 60
pOWER SUPPLY

HPS

COMM

STATUS

ODF
L2
CCH

_Ij

1
TO INDOORUNIT

A03032

Fig. 18--Wiring

Diagram--037

DUAL CAPACITY
CONNECTION DIAGRAM

L5
/_

L/ ....

0 ........
Yt

•

c
R

•

]
I_l

7!=_L

'i
[,,

B C

VH
ODF

CCH

_i]

r
TO ENDOORUNIT

A03031

Fig. 19--Wiring

Diagram--060

2003 CARRIER

Manufacturer
Book_ 1_ 4
Tab 15al 5a

Corp. • 7310 W. Morris St • Indianapolis,

reserves the right to discontinue,
PC 101

Catalog

No. 533-80088

IN 46231

38ydb5si

or change at any time, specifications
Printed in USA

Form

or designs

38YDB-5SI

without notice and without
Pg 16

2-03

incurring

obligations.

Replaces:

38YDB-4SI

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Carrier 38YDB024 SERIES300 User Manual HEAT PUMP Manuals And Guides L0411018

CARRIER Air conditioner/heat pump(outside unit) Manual L0411018 CARRIER Air conditioner/heat pump(outside unit) Owner's Manual, CARRIER Air conditioner/heat pump(outside unit) installation guides

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