Carrier 38BYG018 SERIES300 User Manual HEAT PUMP Manuals And Guides L0411009

CARRIER Air conditioner/heat pump(outside unit) Manual L0411009 CARRIER Air conditioner/heat pump(outside unit) Owner's Manual, CARRIER Air conditioner/heat pump(outside unit) installation guides

User Manual: Carrier 38BYG018 SERIES300 38BYG018 SERIES300 CARRIER HEAT PUMP - Manuals and Guides View the owners manual for your CARRIER HEAT PUMP #38BYG018SERIES300. Home:Heating & Cooling Parts:Carrier Parts:Carrier HEAT PUMP Manual

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38BYC, 38BYG
12 SEER SpMit System
Heat Pump

HEATUNG & COOUNG

%isitx__ _.¢arrier.com

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

the entire

instruction

--> indicates

a change

SAFETY
Improper
or

installation,

use

can

conditions
damage.
installer
when

Consult

a qualified

installer_

packaged

with

codes.

Have

extinguisher

Wear

Use

you

manuals,

this symhol

the signal

glasses,

your

instructions

protective

cloth

t:br brazing

Read

these

clothing,
operations.

instructions

thor-

included

in literature

codes

and National

A98525

requirements.

on the unit

words

The qualified

Fig. 1--Mode{

This is the safety-alert

be alert to the potential

Understand

agency,

kits or accessories

local building

[br special

other

installing.

or cautions

informatiom

see

when

safety

available.

(?ode (NEC)
safety

service

or property

to the individual

quenching

to the unit. Consnh

Recognize
When

Refer

and _\_llow all warnings

Electrical

injury,

or assistance.

the kits or accessories

gloves.

the

maintenance,

shock,

must use _hctory=authorized
this product.

all safety

and attached

personal

for infornmdon

and work
fire

service,

electrical

death,

or agency

oughly

fire,

may cause

modi_}-ing

alteratiom

explosion,

or branch

starting

since the last issue.

which

distributor

before

CONSIDERATIONS

adjustment,

cause

manual

and

for personal

DANGER,

symbolz_

in instructions

could

injury
result

identify

or death.

in personal

unsafe

practices

injury.

signifies

injury

or death.

which

would

and CAU=

injuw or product and property
suggestions
which will result

hazards

(AUTION
result

Leave

some

personal

When passing
with RTV

6. Avoid

which

is used

in minor

joists,

direct robing

9. When

that

gas pulsations

fiom

h Locate

unit away

where
2. Ensure

fiom window<

unit operation

sounds

patios,

may disturb

that vapor- and liquid-robe

capacity

When
outdoor
indoor

diameters

decks,

and so forth

customer

unnecessary

tubes

Manufacturer

reserves
PC

101

directly

are appropriate

as possible

avoiding

and bends.

the

right
Catalog

absorb

the wall, seal opening

based

with water

caulk.

(See Fig. 2.)

pipes, duct work, floor

and walls.

insulation

of robing

straps

is pliable

straps

using

charge

Maximun_

applications
Always
existing

coil or fan coil units.

which

liquid

including

and

metal

sleeves

indoor

unit,

charge fbr operation
connected
by 15
For proper

charging

with
fi of

unit opera-

information

line size is 3/8-im

located

O.D.

fc_r all

long line.
a liquid

field service
Always

by using

robing.

using

install

are 1 in. wide

(See Fig. 20

to ihctory-approved

system refrigerant
same
size when

or factoo'-accessoC mininmm) wire. If
thermostat
is located more than 100 ft fi'om unit, as measured
along the contlol

on both indoor

of adequate
size per
disconnect within sight

fire, or death

control

leads

Instractions
A97512

robbing

above

an uninterropted

installed

(ONTROL

24v

connect

have

ground

GROUND

(ONNE(T

and outdoor

constitutes

WIRES

wiring

personal

when

ground

safety

not

between

power

must

The

shock,

Connect

tubing

only

POWER

through

codes

electric

STRAINER

fuctory

line voltage

may fluctuate

panel to gain access

cabinet

should

CONNE(T

to be certain

circuit-

See unit rating plate

from unit, per Section

AND

to minimize

electrical

PISTON
RETAINER

(beck

wire

accessible

ROUTE

PISTON

mMPORTANT:

on improper

where voltage

copper

from and readily

ground

Fig. 7--Liquid-Service

fbr recommended

NOTE:
Install branch
circuit disconnect
NE( to handle unit stmling cun'ent Locate

The

SWEAT/FLARE

shown

fbr convction

limits.

from disconnect
control box

PISTON

"_'_

limits

device.

and could affkct unit reliability

NOTE:
unit

company

plate

fire, safkty,

is within

fi'om facto_

valve using either

material.

to system

See unit rating

install unit in system
retainer

power to unit

with local and national

( ontact tocal power

voltage.

protection

plastic

are

Connections

To avoid personal injmy or death, do not supply
with compressor
terminal box cover removed.

(See Table

and connect

sure wire ties on f_eder tubes

and tight

improper

vah'e

Guideline

efficiency.

SWEAT CONNE(TION

Remove

consult the Application

15 ft of

TUBING

valves.

or greater than 20 fl vertical differential,

to avoid
All

excessive

wiring

incoming

must
power

voltage

wires,

use No. 16 AWG

voltage

&op

be NEC

Class

leads

1 and must

color coded wire

be separated

from

Tab{e 2--Accessory

Usage

REQUIRED FOR
LOW-AMBiENT
APPLICATBONS
(BELOW 55°F}
Yes

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

REQUIRED FOR
BURRED LINE
APPMCATBONSt
(OVER 3 FT)
Yes

Evaporator
Freeze Thermostat
Accumulator

Yes
No

No
No

No
Yes

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

Yes

Wind Baffle

See low-ambient
instructions

Unit Risers

Recommended

ACCESSORY

Crankcase

Heater

Liquid-Line

Solenoid Valve
or
Nard-Shutoff
TXV

BaR-Bearing

See Long-Line
Application
Guideline

Fan Motor

Yes_:

Yes

* For tubing line sets between 50 and 175 ft, refer to Application Guideline and Service Manual -- Air Conditioners and Heat Pumps.
? For buried line applications, refer to Application Guideline and Service ManuN -- Air Conditioners and Heat Pumps
$ Required for low-ambient controller (full-modulation feature) and MotorMaster@ Control only.

Step 13--Start-Up

DISCONNECT
PER N. E. C. AND/OR
LOCAL CODES

e
CONTACTOR

FIELD POWER

To prevent compressor damage or personal injnry, observe
the following:
*Do not overcharge system with refi'igerant,
*Do not operate unit in a vacuum or at negative pressure,
*Do not disable low-pressure switch
In scroll compressor applications:
*Dome tempe*amres may be hot,

C)° C)

WIRING

C)oC)
FIELD GROUND

WIRING

GROUND
LUG

]

A9f05g

Fig. 8--Line
"Use t'urnace
former

trans%rmer,

for control

NOTE:

Use

of available

mum 40va power

capacity

ensure
forth.

wires

11--Compressor

When

equipped

outdoor
longer

fhctolw
are secured

are not in contact

Step

trans-

*Back-seating

may exceed

the mini-

total transformer

load-

or split the load with an

wiring

and

properly.

wire
Check

with tubing,

Crankcase

with a crankcase

sheet

connections

wire routing

metal

and so

Heater

heater,

fi/rnish power

to heater a

of 24 hr bet'ore starting unit To f_lrnish power to heater
thermostat
to OFF and close electrical
disconnect
[o
unit

personal

ir{jury

clothing, and gloves
tke t'ollowing:
valves.
removing

when

seix'ice

wear
handling

valves

safety

glasses,

refi'igerant

are not equipped

Fully back seat (counterclockwise)
gage=port

*Front=seating
valves,

protective
and obsma'e

with Schrader

valve stem befbre

cap

service

valves

are

equipped

with

Schrader

as required.

(heck

terminations

minimum
only, set

24v accessories

the transfbrmer

ensure

or accesso_

minimum.

Determine

tlansformer

IMPORTANT:

24vi40va

requirement.

ing and increase
accessory

fbn coil transfom_er,

power,

To prevent

Power Connections

A crankcase

heater is required

if refi'igerant

robing is

than 50 ft

Step

12--install

EtectricN

Refer

to the individual

series

when

installing.

Accessories

instrnctions

packaged

with kits oi" acces=

Federal Regulations require that you do not vent retiigerant to
atmosphere, Recover during system repair or final unit
disposal,
Follow these steps to properly pumpdown
negative suction pressu*e

a system and avoid

1 Fully back seat (open) tiquid- and vapor-robe so*vice valves
2 l_nit is shipped with valve stem(s) fiont seated (closed) and
caps installed Replace stem caps after system is opened to
refrigerant flow, Replace caps f_nger-tight and tighten with
wrench an additional 1/12 turn,
3 (lose electrical disconnects to energize system,

4, Set room
is below

them_ostat

5, Set room them_ostat
o1" A'LTO
Check

to HEAT

outdoor

Be sure set point

or COOL and fire control

as desired.

Operate

unit

fbr

to ON

15 minutes

charge.

supplied

board

may

to indoor

be equipped

upon

with

any interruption

position.

Circuit

and outdoor

them_ostat

R=Y

motor

and compressor

relay,

starting

When

thermostat

energizes
circuit.

units,

NOTE:

If indoor

relay.

open,

and motors

should

is satisfied,

and relay.

The defi'ost contlol
field=selectable

trans*brmer

starting

on high

its contacts

unit is equipped

R=O, R=¥,

switching

contactor,

Compressor

runs an additional

circuits

valve,

R-G energizes
motor

is satisfied,

and blower

makes

reversing

indoor=blower

contactor

the blower

its contacts

thermostat

All heaters

between
minutes.

deflost

indoor

energized

and

open,

and defrost

and defi'ost
mode

is identical

outdoor=_im

stops

and

unit=blower

wamaing

thermostat

circuit

and bring

de-energizing
stop.

conditioned

stop.

2. Disconnect
board.

factoQ

set at 90

start only when contactor

mode except

heat

is turned

thermostat

to outdoor

that outdoor=fan
on

continue

must be closed.

This can

outdoor=Jim

unit.
motor

(See Fig. 10.) Tape

TYPICAL
FAN COIL

HP THERMOSTAT

time period

as %llows:

1. Turn off power

efficiency.

which includes
edge)

space.

defi'ost, the defiost

relay circuit,

system

at board

is closed.

to cooling

second-stage

be accomplished

the

should

cycle

flaermostat

motor

To initiate

with a time=delay

timer

control

located

(30, 60, or 90 minutes),

Defi'ost

de=energizing

90 sec to increase

cycles

it to cooling

speed.

and motors

is a time/temperature

(quick=connects

The electronic

Circuit R=O energizes

of outdoor

When

5-minute

( OOLING
On a call _br cooling,

setting

close to complete
electric heat.

of power.

energized.

R-G.

fi_lls below

DEFROST

timer that may be initiated
power

temperature

(field=installed
option), contacts
on second bank of supplemental

contactor

OF OPERATION

Defi'ost=control

lockout
With

mode,

temperature,

temperature

system=refi'igerant

SEQUEN(E
NOTE:

to desired

indoor=ambient

lead

[i'om

lead to prevent

OF2

control

grounding.

HEAT
PUMP

24 VAC

HOT

24 VAC

COM

HEAT

,a--D ---q4S

STAGE

COOL/HEAT
STAGE 1
INDOOR FAN
RVS COOLINC E_
EMERGENCY
HEAT

(See Thermostat

* IF AVAILABLE

A02325

Fig. g--Generic Wiring Diagram
Insta{iation Instructions
for wiring specific

unit combinations.)

LEGEND
24-V

FACTORY

WIRING

24-V FIELDWIRING
FIELDSPLICECONNECTION
ODT

OUTDOOR

THERMOSTAT

EMERGENCY
SUPPLEMENTAL

HEAT

RELAY

HEAT

RELAY

A97413

HEATING
On a call for heating,

thermostat

makes

(ircuit

contactor,

starting

R=¥

compressor.
blower
Should

energizes
Circuit

motor

R-G energizes

R=¥

outdoor=_im

indoor-blower

and R-G
motor

relay,

and

starting

on high speed.

temperature

continue

second-stage
room=them_ostat
relay, bringing
on first bank
providing

circuits

electrical

potential

3, Restart unit in heating mode, allowing[i'ost
outdoor coil.
4. After

a few minutes

should

drop

proximately
to

£fll,

R=W2

bulb, Circuit
of supplemental
to second

heater

is made

through

5. Short

R-W2 energizes
a
electric heat and
relay

(if used)

below

in heating
closing

mode,

point

to accumulate on

liquid-line

of defiost

temperature

thermostat

(ap=

30°F).

between

speed=up

&iver.

(See

Fig.

1/256th

of original

10)

terminals
This

with

reduces

the

time. (See Table

3.)

a flat=blade
timing

screw-

sequence

EXAMPLE:
To calculate
25 ft

additional

charge

15 ft

10 ft X 06

Units installed

with cooling

subcooling
1

required

ozi[_

for a 25

k line set:

6 oz of additional

mode TXV require

charge

charging

with the

method.

Operate

unit

a minimum

10 minutes

befbre

checking

charge.
2. Measure

liquid service=valve

gage to service
3. Measure

pressure

by attaching

an accurate

port.

liquid-line

temperature

thermistor
type or electlonic
outdoor coil.

attaching

them_ometer

4. Refkr to unit rating plate for required

to liquid

subcooting

accurate
line near

temperature.

5. Refkr to Table 4. Find the point where required
subcooling
temperature
intersects measured liquid service=valve
pressure.
6. To

obtain

liquid-line

required
pressure,

subcooling

temperature

add refrigerant

at a specific

if liquid-line

is higher d-_an indicated or reclaim refrigerant
lower. Allow a tolerance of ÷ 3_T.

temperature

if temperature

CES0110063,
CES0130024

TaNe 4--Required

Liquid=Line Temperature

(°F)

A91444

LIQUID
PRESSURE AT
SERVICE VALVE
(PSIG)
134

t41

148

186

163

t71

t79

187

19G

remove

205

tem_inate

214

101

223

104

of time

233

107

102

valve

243

110

105

100

253

113

108

103

264

116

111

106

101

274

119

114

109

104

288

122

117

112

107

297

125

120

115

110

309

128

123

118

113

321

131

126

121

116

331

134

129

124

119

346

137

132

127

122

389

140

135

130

125

Tab{e 3--Defrost
Control SpeedupTiming Sequence

30=minute

cycle

MBNIMUN
(MRNUTE$}
27

50=minute

cycle

90=minute

cycle

t0=minute cycle
8 minutes

PARAMETER

MAXIMUM
(MINUTES)
33

you

screwdriver
nom_al
NOTE:

Length

of defiost

it takes to remove
has shire&

7. Unit will remain
or until defrost
temperature

in defrost
thermostat

of liquid

8. Turn off power

Step

14--Check

Factory

charge

cooling

mode.

in heating

plate

respectively

cycle

control

will

in approximately

is dependent

upon

2 sec.
length

fiom test pins aker reversing

for remainder
reopens

of defrost-cycle

at approximately

unit and reconnect

time

80°F coil

_hn motor

lead

(See Fig. 10.)

on unit rating

ret'cr to Cooling

mode,

charge

÷ 0.6

board.

is shown

Only

refer to Heating

plate.

To check

Procedure.

Check

charge

To check

charge

(7hart Procedure.

HEATING

or subcooling=charging

must be weighed

ozi['t of

3/8-in.

liquid

CHE(K

CHAR7

PROCEDURE

To check system
operation
dtlring
Heating Check (;hart on outdoor unit

PROCEDL RE

If superheat=

favorable,

othep.vise,

position,

Charge

COOLING=ONLY
NOTE:

change

line.

to outdoor

to OF2 on control

Control

valve

cycle

screw&iver

2 sec
1 sec

5.5

immediately;
defrost

21 sec

reversing

10=minute

12 sec

4.5

hear

7 sec

Fig. 10--Defrost
6. When

SPEEDUP
(NOMINAL)

REQUIRED SUBCOOLING
TEMPERATURE
(°F)

in accordance
line

above

conditions

are not

a correct

relationship

with unit rating

air temperature

or below

temperature

15 ft

exists

entering

do not match

not be con'ect.

between

indoor

heating
cycle, refer to the
This chart indicates whether
system

and outdoor

on chart,

system

Do not use chart to adjust

operating
units.

pressure

If pressure

ret'rigerant

charge

refrigerant

charge.

and
and
may

NOTE:Whencharging
is necessawduringheating
season,
charge
must
beweighed
inaccordance
withunitrating
plate
÷ 0.6
oziftof3/8-in.
liquidlineabove
orbelow15ft respectively.
EXAMPLE:
Tocalculate
additional
charge
required
fora25 ft line set:
25 fi

15 ft

10 ft X 0.6 ozit't

Step

15--Final

2. Tighten

2002

Before

CARRIER

Manufacturer
B°°k
Tab

1h_
15al 5a

reserves
PC

101

job, be sure to do the fbltowing:

Corp.
the

_ 7310
right
catalog

Morris

to discontinue,
No.

failure,

Frequency

caps to 1i12=mm

533-80078

past finger-tight.

• Indianapolis.
or

AND

Explain

system

requirements

outlined

Checklist

and place

operation

in manual.
in customer

MAINTENANCE

change

high per%m_ance
periodic

and to minimize

maintenance

must

possible

be perfbm_ed

areas,

of maintenance

such as coastal

may vary depending

upon

at any

time,

in USA

geographic

applications

IN 46231

Printed

equip=
on this

equipment

and covers.

valve=stem

with owner

Installation

CARE

ment

leaving

Manual

maintenance

4. Fill out Dealer
file.

For continuing

fitsten all panels
service

L ser's

and periodic

charge

Checks

mNPORTANT:
1. Securely

6 oz of additional

3. Leave

38byc3si
specifications
Form

or designs
38BYC-3SI

without

notice
Pg 8

and

without
11-02

incurring

obligations.

Replaces:

38BYC-2SI

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File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
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Page Count                      : 8
Page Layout                     : SinglePage
Page Mode                       : UseNone
Producer                        : Goby Monitor Application version 3, 2, 1, 4
Create Date                     : Tue Apr 03 18:38:36 2007
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Title                           : 
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Carrier 38BYG018 SERIES300 User Manual HEAT PUMP Manuals And Guides L0411009

CARRIER Air conditioner/heat pump(outside unit) Manual L0411009 CARRIER Air conditioner/heat pump(outside unit) Owner's Manual, CARRIER Air conditioner/heat pump(outside unit) installation guides

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