Carrier 38TPA042 SERIES300 User Manual CONDENSING UNIT Manuals And Guides L0411015

CARRIER Air conditioner/heat pump(outside unit) Manual L0411015 CARRIER Air conditioner/heat pump(outside unit) Owner's Manual, CARRIER Air conditioner/heat pump(outside unit) installation guides

User Manual: Carrier 38TPA042 SERIES300 38TPA042 SERIES300 CARRIER CONDENSING UNIT - Manuals and Guides View the owners manual for your CARRIER CONDENSING UNIT #38TPA042SERIES300. Home:Heating & Cooling Parts:Carrier Parts:Carrier CONDENSING UNIT Manual

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38TPA, TZA, TXA, TSA
11, 12, 13, t4 SEER SpMit-System
Air Conditioners with Puron®

HEATUNG & COOUNG

%isitx__ _.carrier.com

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

the entire

instruction

--> indicates

a change

SAFETY
Improper
or

installation,

use

can

conditions
damage.
installer
when

Consult

a qualified

installer,

packaged

codes.

gloves.

Have

extinguisher

Electrical

When

safety

manuals,

safety

available.

see

informatiom

these

signal

your

The qualified

kits or accessories
instructions

glasses,

protective

cloth

fbr brazing

Read

these

clothing,
operations.

instructions

thor=

included

in literature

codes

and National

A98516

requirements.

This is the safety-alert

this symbol

on the unit

be alert to the potential

Understand

agency,

local building

tbr special

other

installing.

or cautions

to the unit. Consuh

you

when

or property

to the individual

quenching

all warnings

(?ode (NEC)

Recognize

Refkr

Wear

Use

and fbllow

and attached

service

or assistance.

the kits or accessories

all safety
fire

injury,

must use fi_ctory=authorized

and work

the

maintenance,

shock,

personal

for information

this product.

with

service,

electrical

death,

or agency

oughly

fire,

may cause

modifying

alteration,

explosion,

or branch

starting

since the last issue.

which

distributor

before

CONSIDERATIONS

adjustment,

cause

manual

instructions

and

for personal

words;

symbol

z_.

in instructions
injury.

DANGER,

Fig. 1--Models
3

WARNING,

Run

refrigerant

unnecessary

and

4. Leave

severe personal
injury or death. WARNING
which could result in personal inju V or death.

5. When passing

to identify
injury

unsaf_

practices

or product

suggestions

which

would

and property

damage.

will result

in enhanced

which

result

NOTE

hazards
is used

with RTV

is used to highlight
reliability,

some

6. Avoid

operation.

as directly

slack

between

refi'igerant

direct robing

joists,

contact

wall studs, floors,

Ensure

that

rounds

vapor

9. When

robing

R=22

systems.

personal

inju_',

components

avoid

danmge

not

on Puronta

use

In some

gas pulsations
1. Locate

2. Ensure
unit

R-22

cases noise

fi'om improper

sound

unit

sen-ice

When

standard

or possible

equipment

tubing

hanger

straps

patios,

decks, etc. where unit

customer.

that vapor and liquid robe diameters

for

capacity.

Manufacturer

reserves

the

right

to discontinue,

Catalog No 533-80105

change

at any

time,

Printed in U.S.A.

absorb

using

in the Check

specifications

distributor
or designs

Form 38T-13SI

snaps

and studs with a

contact

with tubing.

and completely

sur-

insulation

are 1 in. wide

by using

charge

metal

sleeves

unit

unit,
with

operation,
located

section

liquid-line

indoor

fbr operation

by 15 [_ of field-supplied

in_bnnation
Charge

check refrigon control

box

of this instructiom

size

is 3/8-im

OD for all

long line.

install the fhctoo,-supplied

the filter drier,

part number.

and

(See Fig. 2.)

to factory-approved

including

Always

which

of insulation.

connected

Maximum

If replacing

for appropriate

fi'om joists

refrigerant

charging

applications

IMPORTANT:

(See Fig. 2.)

pipes, duct work, floor

in direct

For proper

and/or

your

PC 101

tubing.

charge

ter drier.
are appropriate

system

cover

residential

caulk.

insulation.

from

to shape

erant

IMPORTANT:

of equipment

unit

the wall, seal opening

is pliable

unit is connected

factor?" accessory

installation

may disturb

of robing

unit contains

in the living area has been traced to

comes

insulation

ARI rated indoor unit when

and

with water

use hanger

to shape

outdoor

RECOMMENDATBONS

unit away from windows,

operation

to the

than

equipment.

mNSTALLATmON
NOTE:

pressures

avoiding

mbe.

bent to confbrm
at higher

and walls.

refrigerant

necessary,

confbnn
10. Isolate

operate

structure

silicon-based

rigid wire or strap which
(See Fig. 2.)

Puron_R: systems

possible

robes through

or other pliable

7. Do not suspend

Befbre installing, modil_-ing, 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.

and bends

vibration.

in minor personal

instalhion,

tubes

rams

CAUTION.
These words are used with the safety=alert
symbol.
DANGER
identifies the most serious hazards which will result in
signifies
CAUTION

38TPA, 38TZA, 38TXA, and 38TSA

Obtain

liquid-line

refer to Product
replacement

fil-

Data Digest

filter driers

from

or branch.
without

notice

Pg 1

and

without

1%03

insurring

obligations,

Replaces: 38%12SI

INSTALLATION

3/8-1N.

DIA TIEDOWN

KNOCKOUTS

IN BASEPAN
121 PLACES

NOTE: Avoid contact between tubing and structure

l
A

_SULATION___VAPOR

TUBE

THROUGH THE WALL
VIEW

HANGER STRAP-(AROUND VAPOR_

FROM

3/16"

TOP

_,/--JOIST

A97548

-,>__IN

Dimensions

SU LATION

TiEDOWN

UNIT BASE PAN DBMENSBONS
TUBE_,

VAPOR TUBE

(In.)

2-13/16

6-15116

30.0 X 35.0

9-3/4

Fig. 8--Clearance
NOTE:

LIQUID TUBE

Unit

compressor
Step

LOCATIONS

22.5 X 27.5

r' MIN
SUSPENSION

KNOCKOUT

must

Requirements

level

manufhcturer

within

÷2 °

(÷3/8

inift)

per

specifications.

a--Clearance

Requirements

A94028

Fig. 2--Connecting
Specifications
require
can

%1" this unit in residential

d_e outdoor

metering

device,

deviation,

Manual

Puron®

Refl'igerant

applications

indoor

unit,

refrigerant

drier listed in presale

Consult
Air

new construction

the

1--Check

sets,
The*e

Guideline

and

Heat

Pumps

unit

changes

required

Equipment

and

When

installing,

wiring,

refi'igerant

service

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

for specific

Position

so water,

directly

Step

and Job

Site

to final location

Remove

carton

taking

care not to damage

File claim

with shipping

is damaged

company

or incomplete

prior

Locate

to installation

unit rating

It contains

information

(hock

rating

to be sure unit matches

Step

2--Install

plate

or tocal codes

down

should

Level

require

used

plate

--> Step

unit above

applications,
a load-bearing
Arrange

and minimize

transmission

governing

Roof

mounted

units

wind

baffles.

Consult

Manual

rooftop

Residential
Using

Puron®

clearance,
clearance

airflow,

a 6oin.

roof

or eaves

locate

at least

cannot

fall

outdoor

operating

outdoor

indoor

Ring

unit

6 in.

above

roof

Ambient

5--Cheek

1. Check

ambient

operating

in cooling

ambient

AceuRater®

{38TXA024o048,

mode

in cooling

Piston

060034

fastened

replace
to pad, tie

through

knockouts

pattern

in Fig

members
of vibration

to adequately
to building.

and

is 55°F,
mode

Install

/ 38TZA

/ 38TPA=

the

to winds
Application

support
Consult

unit
local

SplitoSystem
Refrigerant

5 mph may require

Guideline

and

Air Conditioners
for wind

baffle

Service

correct

and Heat

construction.

piston

in piston
as shown

during

g--Install

TXV

ALL

thermostatic

operate

outdoor

Install

all operating

and

shipped
unit

locate
piston

with

is correct

neoprene
ring

be replaced
for Purona;.

SH[T

valve

outdoor
fbr any

piston

behind

ring

metering
that piston

conditions.

38TXA060035

A HARD

expansion

with Puron:_.

TXV must
designed

38TSA
WITH

proceed

the required

in Fig. 4. The piston ring ensures

stays seated

NOT[[:

with

is installed,
bag.

device,

if it matches
piston

coil combination.

---> Step

The

with

approved

INSTALLED
above

to see

coil piston

indoor

metering

unit rating plate. If it does not match,

shipped

Place

applications.

exposed

indoor

piston

or fi'ame.

coil piston

unit. The piston

2. After

hole location.

or* level plaffbrm

indoor

with a piston

piston shown or* outdoor

wall and isolate unit and robing set fiom

supporting

codes

unit

Pad

the unit be attached

and

mount

install

job specifications.

Mounting

base pan size and knockout

On rooftop

airflow
30oin.

or ice from

applications,

If'unit is to be installed
follows:

if shipment
on unit corner

to properly

in unit base pan. Refer to unit mounting

to detem_ine

structure.

needed

a Solid,

If conditions
bolts

for

Allow

=Standard)

panel

provided

snow,

4_Operating

Piston
EQUIPMENT

space

and service.

on unit.

)"he minimum

LNIT

sufficient

piping,

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

On rooftop
surface.

Using

allow

and the maximum
125°F.

INSPECT

Pumps

robing

literature

Application

Conditioners

to obtain

market

and for R-22 retrofit.

L NPACK
Move
unit,

unit,

and tilter

So*vice

Step

Tub{rig InstNtation

[NH'S
OFF

MIST

is specifically

designed

Do not use an Ro22 TXV. An existing
with a factou-approved

TXV

to
Ro22

specifically

NOTE: FK4 and FC4 _hn coils are equipped with an R=22 TXV
If an FK4 o1"an FC4 fire coil is used with a Puron;R; air conditioner,
the R=22 TXV must be replaced with a Puron® TXV or with the
accessory piston body kit and piston shipped with outdoor unit.

TXV, marked

"IN" to liquid

could

damage

valve.

Install

vapor

elbow

Connect
vapor

connection

connector

equalizer

excessive

adapter

to suction

to indoor

fbr attaching

heat which

tube of

coil. Adapter

equalizer

robe of TXV to li4-in

has a

tube

equalizer

fitting

line adapter.

Attach

TXV

clamps

provided

tape

Avoid

with equalizer

line set and suction
1/4-in. male

line

bulb to horizontal
Insulate

See Fig. 5 for correct

Proceed

with remainder

section

of suction

line using

bulb with field=supplied
positioning

of unit

insulation

of sensing

bulb.

installation.

SENSING

STRAINER
4 O'CLOCK
FLARE
ADAPTOR

7/8IN. OD & SMALLER

THAN

7/8 IN. OD
A81032

LIQUID LINE STRAINER
_APPROX
2" LONG
L

LARGER

Fig. g--Position

STRAINER

of Sensing

Bulb

LABEL
Replacing

(AFFIX TO LIQ. LINE
NEAR STRAINER LOCATION)
A95615

Fig. 4--AccuRateNg) Components
(38TXA, 38TZA, 38TPA Only)

TXV

Pump

Remove
cabinet.

on R-22

system

Coil

down to 2 psig and recover

coil

3. Remove

Indoor

access

panel

TXV support

and

clamp

fitting

refrigerant
panel

flora

using a 5/16-in.

_?ont of'

nut &iver.

Save

the clamp.
4. Remove
To

avoid

improper

failme,

remove

system

with

per%finance

indoor

a TXV

coil piston

metering

and

possible

equipment

if" unit is to be installed

as close to the
position Avoid
more susceptible
fi_cing down. A
the liquid line.

Installing TXV in Place of Piston

3. Remove and discard _Sctory=installed piston. Be sure Teflon
seal is in place.
4. Reinstall hex nut. Finger tighten nut plus 1/2 turn.
NOTE: If the piston is not removed flora the body, TXV will not
function properly.
l

To prevent damage to the unit, use a brazing shield
TXV with wet cloth or use heat sink material

and wrap

wrench

to avoid

coil and attach
damage

7. Braze

to TXV

to robing

outlet

or valve

adapter

Use

panel

Sweat

d-_e equalizer

damage

to tubing

location
sensing

bulb.

11. Route

bulb

equalizer

tubing

and

to attach

inlet

male connector

TXV

through

(removed

through

connection

cabinet,
using

suction

and install

marked
could

"IN"

damage

to indoor

for attaching

avoid

in item 3).

inside

See Fig. 5 for con'ect

panel

small hole in

wrench,

TXV to distributor.

removed,

TXV,

through

backup

elbow with equalizer

set and vapor

battier

panel prior to replacing

was when

robe

heat which

13. Install vapor

tube of Puron

robe

hole) in fitting
inlet

protective
pan.

to vapor

or copper).

backup
of

wrench

or valve,

as original
(nylon

Use

in fitting

TXV suppolq _ clamp

clamps

robe

cabinet.

to drain

3/8=in. copper

Use

TXV

with vapor

tubing.

panel.

(large

opening

TXV with

9. Reinstall

closed.

Route

service

10. Attach

on flare connec-

robe offflush

damage

around

wrench

robe inside

stub-robe

line connection

12. Sweat

cut equalizer

to prevent

IMPORTANT:
suction

a baclcup
to tnbing.

fi'om vapor

equalizer

necessary

excessive

5. Install TXV on indoor coil liquid line. Sweat swivel
inlet of indoor

bulb

8. Install

2. Remove hex nut from piston body Use backup wrench on _n
coils

6. Remove

fitting

1. Pump system down to 2 psig and recover refi'igerant.

damage

5. Using wire cutters,
inside cabinet.

device,

IMPORTANT: The TXV should be mounted
indoor coil as possible and in a vertical, upright
mounting the inlet tube vertically down. Valve is
to malfunction dne to debris if inlet tube is
factory=approved filter drier must be installed in

R=22 TXV using

tions to prevent

in same

supplied

bulb

positioning

connection

opening

fitting panel

in place.

to liquid

line.

Avoid

valve.
adapter

to vapor

coil. Adapter

equalizer

robe.

line of line
has a 1/4-in.

Table 1--Refrigerant
UNIT SIZE

Connections and Recommended

LIQUID
Diameter
Tube Diameter

Connection

Liquid and Va _or Tube Diameters

VAPOR
Diameter
Tube Diameter

(In.)

VAPOR (LONG LINt=)
Connection Diameter
Tube Diameter

0t8, 024

3/8

5/8

030, 036

3/8

3/4

7/8

042, 048
060

3/8
3/8

7/8
7/8

7/8
1-1/8

7/8

1-1/8

7/8

1-1/8

NOTES:
1 Tube diameters are for lengths up to 50 ft. For tubing lengths greater than 50 ft, consult the Application
Pumps Using Puron® Refrigerant
2 Do not apply capillary tube indoor coils to these units

14. (onnect

equalizer

vapor

robe of TXV to 1i4qn.

line adapter.

equalizer

Use backnp

wrench

equalizer

fitting on

to prevent

damage

fitting.

15. Proceed

OUTDOOR

of unit installation

UNIT

INDOOR
Outdoor

with remainder

7--Make

Piping

unit contains

(beck

Relieve

pressure

and recover

or final unit disposal

Use

all

smwice

including

ports

solenoid

all refrigerant

be%re

to avoid personal

and

open

all

refrigerant

or death.

flow°contIol

system

re_:i'igerant

unit with

highest

_br opera-

volume

or _ctory-accesso_-

_br maxinmm
FILTER

charge

sales

when
robing.

efficiency

DRIER

tion of filter &ier

loss and compressor

in liquid

_ilure,

installa=

line is required

valves.

improper

perfbm_ance

do not leave

system

required

sot is extremely

charge

To avoid per%finance

devices,

to Fig. 6 and install
5-in. connector

&ier

than minimum

con'ect
indoor

LIQUID-LINE

1. Braze

failures,

and Heat

system

inju_

Re_r

To prevent

Conditioners

TO FA( TORY-APPROVED

by 15 ft of []eld-supplied

INSTALL

repair

CONNECTED

tion with ARI rated

Connections

and Service Manual--Air

UNIT

connected
Step

Guideline

3/4

for installation

susceptible

keep ends of robing

and/or

sealed

unit

absorption.

filter

indoor

any longer

POE oil in compres=

to moisture
during

2. Braze

component

open to atmosphere

with damp

installation.

(onnect

vapor

(onnect

liquid

refrigerant

service

valve

Wrap filter

cloth

drier between

coil. Flow arrow

REFRIGERANT

Always

filter drier as _bllows:
tube to liquid

connector
must

robe and liquid

point towards

indoor

tube to
coil.

TUBING
tube to fitting on outdoor
robe to filter

grade

drier

unit vapor

(See Fig

service

6 and Table

valves.
1.) Use

robing.

SWEAT CONNECTION
To prevent

improper

caution

must

buried,

provide

per_:brmance

fPllowed.

or equipment

If ANY

this

robing

rise at service

valve.

Refrig=

erant robing lengths up to 36 in. may be buried

without

further

special

a 6 in. vertical

fitilure

refrigerant

consideration

Do not bury

lines longer

than

To avoid valve damage while brazing, service valves must be
wrapped in a heat-sinking mate*ial such as a wet cloth

36 in.
Use

refiigerant

grade

facto W and ready
wet cloth,
ods

To prevent damage to unit or service valves observe the
following:
* Use a brazing shield
* Wrap service valves with wet cloth or use a heat sink
material.
Outdoor
tubing

units may be connected
package

size and condition.
tia]

capacity

Pumps
to

For robing
in

Residential
Using

losses

Table

1 _br field
requirements.

are no buried-line

can

Application

Split=System
robing

beyond

50 ft, substan=

occur

Following

Guideline

Air

and

(onditioners

will reduce

diameters.

applications

using accesso_-

grade robing of correct

requirements

Puron(_-': Refrigerant

accessory
There

the

section

refrigerant

and performance

recommendations
Manual

to indoor

or field-supplied

these

Refer

greater

and
losses.

to Table

in the system.

Heat
Refer
2 for

than 36 in.

If refi'igerant
robes or indoor coil are exposed to atmosphere,
must be evacuated to 500 microns to eliminate contamination
moisture

the

Service

they
and

braze sweat

and materials.

robing

and indoor

should

include

EVACUATE

robing

for brazing

Service
Aker

connections

Consult

local

valves

wrapping

are
service

using industry
code

coil are now ready

closed

accepted

requirements.
for leak testing.

from

valve with a
meth-

Refrigerant
This check

all field and facto W joints.
REFRIGERANT

TUBING

AND INDOOR

COIL
a

To avoid

compressor

sot as a vacmlm

damage,

never use the system

compres°

pump

Refiigerant robes and indoor coil should be evacuated _lsing the
recommended deep vacuum method of 500 microns. The alternate
triple evacuation method may be used if" the procedure outlined
below is _bllowed Always break a vacuum with dW nitlogen.
Deep Vacuum Method
The deep vacuum method requires a vacuum pump capable of
pulling a vacuum of 500 microns and a vacuum gage capable of
accurately measuring this vacuum depth, The deep vacuum
method is the most positive way of assuring a system is _:i'eeof air
and liquid water. (See Fig. 7,)

TaMe 2--Accessory
ACCESSORY

Crankcase
Evaporator

Heater

Usage

REQUBRED FOR
LOW-AMBiENT
APPLICATBONS

REqURRED FOR
LONG-LINE
APPLICATIONS*

REQUIRED FOR
SEA COAST
APPLICATIONS

(BELOW 55°F)
Yes

(OVER 50 FT)
Yes

{WITHIN 2 MBLES}
No

Yes

Winter Start Control
Accumulator

Freeze Thermostat

Yes?
No

No
No

Compressor
Start Assist
Capacitor and Relay
MotorMaster@ Control,
or
Low-Ambient
Pressure Switch

Yes

Wind

Baffle

See Low-Ambient

Coasta_ FiRer
Support

Feet

Recommended

Liquid_LineSolenoid Valve
or
Nard Shutoff TXV
Ball Bearing

instructions

The triple

Yes$

should

only be used

when vacuum

is as fbllows:

_ahes

and shut off vacuum

3. (onnect
a nitrogen cylinder and regulator
until system pressure
is 2 psig
4. (lose

senice

this time,
system
5. Repeat

vahe

and allow system

dry nitrogen

absorbing

Guideline and Service Manual--Air

pump

pump.
to system

and open

LEAK IN
SYSTEM

3500
_3 3000
,y
25OO
_ 2000
1500

to stand h_r 1 hr During

VACUUM
TIGHT
TOO WET
TIGHT
DRY SYSTEM

500

the
0

as indicated

in Fig. 8. System

and water

will then

attention
secure

CONNECTOR
TUBE

8--Make

not

rubbing

to be certain

factory

against

each

other

tubing

shipment,

or any

sheet

on both indoor
Ensure

metal

tubes are

complies

Pay

with local

fire, safety,

and national

limits

improper

rating

_br recommended

abuse

voltage

See unit

plate

shown

fbr con'ection

circuit

device
Operation

of unit

and could affect

on improper

unit reliability.
where voltage

line voltage

constitutes

See unit rating plate
may fluctuate

above

Do not
or below

limits.

NOTE:
unit

Use

NOTE:

Install

NE(

are

Connections

company

pmmissible

CHECK

sure wire ties on feeder tubes

codes, and voltage to system is within

install unit in system

FHter Drier

Graph

local power

NOTE:

unit has not shifted during

or* unit rating plate. Contact
protection

Check

Electrical

Be sure field wiring

A95509

Vacuum

to t'_eder tubes, making

and electrical

and outdoor

and tight.

Step

IMPORTANT:

A95424

Fig. 7--Deep

Fig. 6--Liquid-Line

MINUTES

vapor.

LIQUID-LINE
FILTER-DRIER

TUBING

and Heat Pumps

4000

1000

wilt be able to di_h_se throughout

be fi'ee of any contaminants

FINAL

Conditioners

4500

moisture.

this procedure

1. Pump system down to 28 in. of mercm 7 and allow
continue operating
_br an additional
15 minutes
2. (?lose service

Guideline

5000

method

pump is only capable
of pumping
down to 28 in of mercury
vacuum
and system does not contain any liquid water Refer to
Fig. 8 and proceed

Recommended

Method

evacuation

Yes

See Long-Line Application

* For Tubing Sets between 50 and 175 fl horizontal or 20 fl vertical differential, refer to the Application
Using Puron® Refrigerant
? Only when low-pressure switch is used
$ Required for low-ambient controller (full modalation feature) and MotorMaster® Control only.

Triple Evacuation

No
No

Fan Motor

copper

to handle

fl'om and readily

branch

wire

only

circuit

unit starting
accessible

between
disconnect

current

Locate

disconnect
of

switch

adequate

disconnect

[_'om unit, per Section

size

within

440-14

and
per
sight

of NEC.

All

I EVACUATE I

wiring

must

incoming

Use furnace

IBREAKVACUUMWITH DRYNITROGENI

former

be NEE

power

accessory

IBREAK VACUUM WITH DRY NITROGEN I

IEVACUATEI

SYSTEM

]
A95425

ROUTE

GROUND

Remove

access

fiom disconnect
control box.

Evacuation

AND POWER

WIRES

panel to gain access
through

power

Method

wiring

to unit wiring

Extend

bole provided

wires

and into unit

9--Compressor
equipped

unit

ground

cabinet

must

to minimize

should

occur.

metal

conduit

Tbe

have

an unintem/pted

personal
ground

when

b!iury

may consist

installed

if an

in accordance

GRO[_D

witb

fault
wire

load-

or split the load with an

wiring

and field wire

properly.

with robing,

Crankcase

witb a crankcase
to OFF

A crankcase

heater

50 it. Refer

to the Application
Split-System

etc.

Heater
fl/rnisb

unit

To fl/rnish

and close

is required

sheet metal,

heater,

starting

connections

(?beck wire routing

power

electrical

if refrigerant
Guideline

robing

to beater

disconnect

is longer

and Service

Air ( onditioners

to beater

power

tban

Manual

and Heat Pumps

Using

Refiigerant

Step

10--install

Refer

to the individual

Electrical

sories

when installing.

Step

1 l--Start-Up

Accessories

instructions

compressor

packaged

damage

witb

or personal

kits or acces-

injury,

observe

the fbllowing:

or unbroken
electrical

of electlical

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

(ONNECT

factory

are secured

of 24 br before

Residential

the mini-

as required.

are not in contact

To prevent
The

24-v

(HECK

When

Puron®

Fig. 8--Triple

capacity

only, set thermostat
outdoor unit.

CHECK FOR TIGHT, DRY SYSTEM
(IF IT HOLDS DEEP VACUUM)
[CHARGE

the transfbm_er

Step

minimum

trans-

may exceed

(?beck

wires

or accessory

minimmn.

total transl\_rmer

to ensure terminations

[- vq

24-vi40-va

Detem_ine

WIRING

INPORTANT:
ensure

from

accessories

tlansformer

FINAL

be separated

requirement.

power

ing and increase

IEVACUATEI

power,

Use of available

mma_ 40-va

1 and must

fire coil transfbrmer,

transformer,

for control

NOTE:

(:lass

leads

existing

can result in an

• Do not overcharge

system

with reti"igerant

• Do not operate

unit in a vacuum

• Do not disable

low-pressure

In scroll compressor

applications:

• Dome

may be hot.

temperatures

or at negative

pressure.

switch.

AND POWER WIRES

Connect ground wire to ground connection in control box %r
safety. (onnect power wiring to contactor as shown in Fig. 9.

To prevent
clothing,

personal

injury

and gloves

wear

when

safety

bandling

glasses,

protective

refi'igerant

and observe

the fbllowing:
DISCONNECT
PER N. E. C. AND/OR
LOCAL CODES

* Back seating
valves.
CONTACTOR

FIELD POWER

service

Fully

removing

valves

are not equipped

back seat (counter

clockwise)

with Schrader

valve stem befbre

gage port cap.

* Front
valves,

seating

service

Federal

regulations

valves

are equipped

with

Schrader

WIRING

FIELD GROUND
WIRING

the atmospbere.

GROUND
LUG

Power Connections

these

1. After
vapor

(ONNE(T

(ONTROL

during

system

repair

or final unit

disposal
A91056

Fig. 9--Line

that you do not xent reDigerant

require
Recoxer

WIRING

Route 24-v control wires through control wiring grommet and
connect leads to conhol wiring. (See Fig. 10.)
Use No. 18 AWG color-coded, insulated (35°C minimum) wire. If
thermostat is located more than 100 ft tk'om unit, as measured
along the contlol voltage wires, use No. 16 AWG color-coded wire
to avoid excessive voltage drop.

steps to properly
is evacuated,

service

valves.

2. Unit is shipped
caps

installed.

refiigerant
tighten
3. Close

start up the system:

system

flow

witb valve
Replace
(back

with wrencb
electrical

4. Set room
is below

stem(s)

stem caps
seated).

seated
system

and

(closed)

and

is opened

caps finger-tight

to
and

system.

temperatnre.

temperature.

liquid

1/12 turn.

to energize

at desired

ambient

seat (open)

fiont
after

Replace

an additional

disconnects

thermostat
indoor

ftdly back

Be sure set point

5. Set
roomthermostat
toCOOL
andfancontrol
toONorALTO
mode,
asdesired.
Operate
unitfor15minutes
Check
system
refi'igerant
charge.
SEQUENCE
OFOPERATION
Turnonpowerto indoorandoutdoor
units.Transformer
is
energized.
Onacallforcooling,
thermostat
makes
circuits
R-YandR-G.
CircuitR-Yenergizes
contactor,
starting
outdoor
fanmotorand
compressor
circuit.R-Genergizes
indoorunitblowerrelay,
starting
indoor
blower
motoronhighspeed.
Whenff_ermostat
is satisfied,
its contacts
open,de-energizing
contactor
andblower
relay.
Compressor
andmotors
stop.
If indoorunitis equipped
witha time-delay
relaycircuit,the
indoor
blower
willrunanadditional
90sectoincrease
system
efficiency.
Step

12--Check

UNIT

( HARGE

Factory
tion

and charging

Puron(R)

method

refrigerant

liquid

position

and a commercial-Wpe

NOTE:
plate,

Charge

charge

+0.6

cylinders

Puron®

Measure

suction

Measure
mistor
valve.

(70()LING
Units

with (ooling

Units

installed

units

with

cylinder

subcooling

device

in manifold

suction

charging

conditions

in accordance
line

required

above

or below

indoor

air (entering

Refkr

to Table

entering

service
port.

Refkr to Table

5. Refer

to Table

ternperatme

If unit

TXV

require

15 ft,

line pressure,

Units installed
heat method.

temperature

by the

befhre

gage to

an accurate

ther-

line at service

with them_ometer.

coil) wet-bulb

tempera-

outdoor

temperature

and evaporator

At this intersection,

note

add refi'igerant

attaching

an accurate

thermometer

to liquid

outdoor

where

temperature
if liquid

in item 6
line

air

line

charge

than

charted

in liquid

a flow-restricting
temperature

temperature

until

charted

temperature

form

into

suction

at suction

valve

device.

to new suction

ffmn charted

charted

pressure

line temperature

indicated

Checks
Be%re

leaving

that all wiring

job, be sure to do the %llowing:

is routed

away

fiom

robing

and sheet

edges

to prevent

rub=through

or wire pinching.

Ensure

that

all wiring

and

is secure

adding

panels

and

service

valve stem caps to 1i12-mm

line near

4. Leave

Users

tubing

covers

Manual

Securely

subcooling

with

maintenance

5. Fill out Dealer
file.

in unit

_hsten

befbre

all panels

and

owner.

Explain

past finger
system

requirements

outlined

Checklist

and place

Installation

tight.

operation

in manual.
in customer

valve pressure.

at a specific
line

CARE

liquid

temperature

For continuing

if temperature

ment

failure,

charging

AND

MAINTENANCE

high peKbm_ance
periodic

maintenance

and to minimize
must

possible

be per%treed

equipon this

equipment
Frequency

require

suction

reti'igerant,

temperature

until

refi'igerant

13--Final

3. Tighten

Pistons
pistons

located

note suction

COVerS,

temperature.

required

liquid service

line

reclaim

charge

Ensure

sEfion

refi'igerant

port using

and periodic
subcooling

temperature

At this intersection,

checking

an accurate

the point
measured

subcooting

with indoor

indoor

a lower

adding

changes,
chart.

by attaching

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

with Indoor

add

has

10. When

charge.

charging

10 minutes

valve pressure

3. Find

6. To obtain required

temperature

5. Find superheat

l'ms a higher

IMPORTANT:

plate %r required

intersects

an accurate

to sEtion

temperature

pressure.

temperatnre,
reached.

Step

thermistor
type or electronic
outdoor coil.
to unit rating

4. Find

air wet-bulb

temperature,
reached

4. Refer

checking

temperature

for a 25-ft line set:

6 oz of additional

mode

a n_ininmm

line

be%re

ture with a sling psychrometer

are not

TXV

cooling

liquid

10 minutes

by attaching

Measure

with unit rating

charge.

3. Measure

is within

them_ometer

metal

2. Measure liquid
gage to service

temperature

type or electronic

9. If unit

liquid

charge

Mode

unit

airflow

by attaching

air dry-bulb

hose.

method.

1. Operate

indoor

port.

omdoor

in upright

PROCEDURE

with

pressure

service

Measure

tube

cylinder

line.

10 ft X 0.6 ozift
ONLY

when

11
additional

a mininmm

valve

service

25 ft - 15 ft

Units

unit

and suction

EXAMPLE:

higher
lower.

Operate

sEfion

respectively.

To calculate

is valid
CFM.

charge.

infbrma-

a dip

from

or subcooling

of 3/8-in.

contain

flow

must be weighed

ozift

on unit

to
metering

into suction

If superheat

favorable,

are shown

refrigerant

position.
refi'igerant

procedure
of its rated

superheat.

upright
Charge

allo_s

fbllowing

+21 percent

Charge

charge

plate.

which

The

by the super-

of maintenance

areas, such as coastal
tion

may vary depending

applications.

See Users

upon

Manual

geographic
for informa-

Table 3--Required Liquid-LineTemperature (°F)
LIQU{D

REQUIRED

SUBCOOLING

PRESSURE
AT
SERVICE
VALVE
(PSiG)

189

195

202

208

215

222

229

236

243

251

259

266

274

283

291

299

308

317

326

335

345

354

100

364

102

100

374

104

102

100

384

106

104

102

100

395

108

106

104

102

100

406

110

108

106

104

102

100

416

112

110

108

106

104

102

427

114

112

110

108

106

104

439

116

114

112

110

108

106

450

118

116

114

112

110

108

462

120

118

116

114

112

110

474

122

120

118

116

114

112

48¢

124

122

120

118

116

114

499

126

124

122

120

118

116

511

128

126

124

122

120

118

Table 4_Superheat
OUTDOOR

TEMPERATURE

(OF)

ChargBng

EVAPORATOR
56
58

ENTERING
60
62

....

......

.......

100

........

105

........

110

.........

115

..........

TEMP

_°°_

Where a dash (--) appears, do not attempt to charge system under these conditions
NOTE: Superheat °F Js at low-side service port

or refrigerant

ABR TEMPERATURE
(°F WB}
64
66
68
70

slL_gging may occur

Charge must be weighed

in.

Table 5--Required
SUPERHEAT
TEMP
(°F}
0

SUCTION

Suction=Line
PRESSURE

Temperature

AT SERVICE

PORT (PSBG}

107.8
35

112.2
37

116.8
39

121.2
41

126.0
43

130.8
45

138.8
47

140.8
49

145.8
51

CARRIER

NON-PROGRAMMABLE
SINGLE-STAGE

THERMOSTAT

24 VAC

HOT

[_--

24 VAC

COM

HEAT

STAGE

COOL

INDOOR

....

CONDITIONER

....

STAGE

AIR

FURNACE

MODELAC

FAN

--[_-

NON-PROGRAMMABLE
THERMOSTAT
MODEL
AC

SEE
NOTE2

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

24 VAC

HOT

E_--

24 VAC

COM

D-

_J I_--_

t.,..,a
HEAT

STAGE

COOL

STAGE

....

AIR
CONDITIONER

SEE
NOTE2

_-D__

INDOOR

FAN

E_'--

A97467
CARRIER
PROGRAMMABLE
THERMOSTAT
MODELAC

24 VAC

HOT

INDOOR

STAGE1

COOL

STAGE

NOT

FAN

HEAT

NOT

SINGLE-STAGE
FURNACE

AIR
CONDITIONER

-FI

24 VAC

--El

HEAT

STAGE

COOL

STAGE

NOT

SEE
NOTE2

--Fq-..__

COM

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

AIR
CONDITIONER

INDOOR

USED

HOT

--F_

USED

24 VAC

A97594
CARRIER
PROGRAMMABLE
THERMOSTAT
MODEL
AC

FAN

USED
SEE
NOTE

_{_

NOT

24 VAC

COM

NOT

USED

NOT

USED

NOT

USED

NOT

USED

OPTIONAL

F[_

OPTIONAL

r-__

OUTDOOR
SENSOR

CONNECT'ON
L________

CONNECTION L ._____
A97469
OTHER
NON-PROGRAMMABLE
AC THERMOSTAT

24 VAC

HOT

SINGLE-STAGE
FURNACE

A97595
OTHER
NON-PROGRAMMABLE
AC THERMOSTAT

AIR
CONDITIONER

_----

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

AIR
CONDITIONER

24 VAC HOT

HBATSTAGB1

USED

N_?_2

COOLSTAGB1
I--q EF
INDOORFAN
I--_ D

HEAT

STAGE

El--

COOL

STAGE

INDOOR

FAN

SEE
NOTE 2

A97367

A97593

Fig. lO--Typical

24v Circuit

Connections

CARRIER
NON-PROGRAMMABLE
THERMOSTAT
MODEL
AC

FK4C, FV4A
FAN COIL
--'_q3

CARRIER
PROGRAMMABLE
THERMOSTAT
MODEL
AC

AIR
CONDITIONER

,y_---J1

JUMPER

24 MAC HOT

24 VAC HOT

24 MAC COM

INDOOR FAN

HEAT

STAGE

HEAT

AIR
CONDITIONER

JUMPER

STAGE

SEE
NOTE 2
COOL

STAGE

COOL STAGE 1

.i
INDOOR

FAN

NOT USED

NOT

USED
SEE
NOTE

24 VAC COM
A97596
OTHER
NON-PROGRAMMABLE
AC THERMOSTAT

HOT

USED

NOT USED
FK4C,
FAN

FV4A
COIL

AIR
CONDITIONER
E

24 VAC

NOT

J1 JUMPER

OPTIONAL

OUTDOOR

---I

i'_"_1

SENSOR

CONNECTION

A97597
HEAT

STAGE

COOL

STAGE

]
L,

INDOOR

FAN

SEE
NOTE 2

-I
I
I

i'-

A97592

NOTES:
1_ CARRIER THERMOSTAT
2_ WIRING MIST

WIRING DIAGRAMS

ARE ONLY ACCURATE FOR MODEL NUMBERS

TSTAT

( ONFORM TO NE( OR LOCAL (()DES

3_ SOME [NITS ARE EQUIPPED WITH PRESSURE SWITCH(ES)_ TEMPERATURE
(Y(LE PROTE( TION_ ( ONNE(T 24V FIELD WIRING TO FA(TORY_PROVIDED

SWIT(H, OR 5_MINUTE (OMPRESSOR
STRIPPED LEADS

4_ THERMOSTATS ARE FA(TORY (ONFIGURED
WITH 5_MINL TE (OMPRESSOR (YCLE
HO[R LIMIT SEE THERMOSTAT INSTALLATION INSTRUCTIONS FOR DETAILS
5_ TO STAGE ELECTRIC RESISTANCE

HEAT, (ONSULT

Fig. 10--Typical

O[ TDOOR THERMOSTAT

24v Circuit

Connections

PROTE(TION

INSTALLATION

(Continued)

AND 4 (Y(LES

INSTR[ (TIONS

PER

PURON®

(R-419A)

QUICK

* Puron,_S refiigerant
components
* PuronR:

are designed

refi'igerant

* Recover-

to operate

service
should

pressure

rating

be charged

Manifold

sets should

be 700 psig high

should

be designed

Puron®,

as with other HF(s,

Vacuum

pumps

filter driers

Do not leave

suction

Do not install

a suction-line

POE oils absorb

moisture

filter

damage

and sela'ice

approved

use an R-22

If indoor

unit is equipped

tow-side

retard.

pressures

in line longer

less than 600 psig.

than 72 hours.

line.
oil to atmosphere
and roofing

materials

with wet cloth when brazing.

filter drier is required

on eve N- unit

TXV
with an R=22 TXV,

open system

When

system must be opened fbr service,
Evacuate

working

plastics

Never

driers.

hose when

refrigerant.

Do not expose

valves

device in the manifbld

with POE oils.

drier in liquid

to certain

liquid-line

Do NOT

or DOT BW400.
type metering

from oil.

with rated

rapidly.

Wrap

A gtctory

HF(

line filter driers

POE Oils may cause
all filter driers

and replacement

rating

to detect

moisture

Do not use liquid-line

4BA400

Use a commercial

side and 180 psig low side with 550 psig

is only compatible

will not remove

PuronR:

equipment

operating

with 700 psig smwice pressure

detectors

than R=22. Be sure that servicing

must be 400 psig, DOT

with liquid refiigerant.

line with compressor

hoses

pressures

are rose colored

into suction

Leak

higher

with Puron®

charging

Use

GLIDE

at 50-70 percent

cylinders

cylinder

* Puron R:systems

REFERENCE

operates

to atmosphere

to 500 microns

while

prior

it must be changed

it is under
recover

to a PuronR:

TXV

a vacuum.

refrigerant,

evacuate

then break vacuum

with dw nitrogen

and replace

filter

to recharging.

* Do not vent Puron,_S into the atmosphere
* Do not use capilta W robe coils,
* Obse*ve

all warnings,

2003 CARRIER

Manufacturer
B°°k 1h_
Tab 13al 2a

reserves
PC 101

cautions,

and bold

text

Corp. _ 7310 W. Morris St • Indianapolis,
the right
catalog

to discontinue,
No

533-80105

or change

IN 46231

38t13si

at any time, specifications

Printed in U.S.A

or designs

Form 38T-13SI

without notice
Pg 12

and without
1%03

incurring

obligations.

Replaces:

38T-12SI

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Carrier 38TPA042 SERIES300 User Manual CONDENSING UNIT Manuals And Guides L0411015

CARRIER Air conditioner/heat pump(outside unit) Manual L0411015 CARRIER Air conditioner/heat pump(outside unit) Owner's Manual, CARRIER Air conditioner/heat pump(outside unit) installation guides

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