Carrier 38ETG User Manual download pdf

38ESG, 38ETG, 38EZG

14, 13, 12 SEER Split-System

Air Conditioners, Sizes 018–060

Wiring Diagrams

Fig. 1—38ETG; 38EZG 018-048; 38ESG 024-048

208/230v, 1 Phase, 60 Hertz

A99329

CONNECTION DIAGRAM

SCHEMATIC DIAGRAM (LADDER FORM)

-NOTES-

-LEGEND-

(NOTE #9)

BLK

RED

BLK

or RED

*CHS

*CH

208/230 1Ø

POWER

SUPPLY

EQUIP

GND

(NOTE #14)

BLU

11 21

23 23

CONT

BLK

BLU

YEL

BRN

BLK

OFM

(NOTE #8)

COMP

CAP

*SC

*ST

*SR

BLU/PNK

BLU/PNK YEL/PNK

YEL/PNK

BLK

*HPS

*DTS *LPS

*CTD

LOGIC

VIO

BRN

BLK

BLKBLU

BLU

*LLS

EXTERNAL

POWER

SUPPLY

24V

(NOTE #3)

INDOOR THERMOSTAT (NOTE #6) INDOOR BLOWER MOTOR

*CH

*CHS

COMP

EQUIP

GND

11 21

*SR

CONT

*SC

*ST

CONT

23 23

CAP

OFM

(NOTE #14)

CONT

LOGIC

*HPS

*DTS *LPS

*CTD

*LLS

INDOOR

THERMOSTAT)

EXTERNAL POWER SUPPLY 24V

IFR

CONT

CAP

*CH

*CHS

COMP

*CTD

*DTS

*HPS

IFR

*LLS

*LPS

OFM

*SC

*SR

*ST

FACTORY POWER WIRING

FACTORY CONTROL WIRING

FIELD CONTROL WIRING

FIELD POWER WIRING

COMPONENT CONNECTION

FIELD SPLICE

JUNCTION

CONTACTOR

CAPACITOR (DUAL RUN)

CRANKCASE HEATER

CRANKCASE HEATER SWITCH

COMPRESSOR

COMPRESSOR TIME DELAY

DISCHARGE TEMP. SWITCH

HIGH PRESSURE SWITCH

INDOOR FAN RELAY

LIQ. LINE SOLENOID VALVE

LOW PRESSURE SWITCH

OUTDOOR FAN MOTOR

START CAPACITOR

START RELAY

START THERMISTOR

*MAY BE FACTORY OR FIELD INSTALLED.

1. Symbols are electrical representation only.

2. Compressor and fan motor furnished with

inherent thermal protection.

3. To be wired in accordance with National

Electric N.E.C. and local codes.

4. N.E.C. class 2, 24 V circuit, min. 40 VA

required, 60 VA on units installed with LLS.

5. Use copper conductors only. Use conductors

suitable for at least 75°C (167°F).

6. Connection for typical cooling only thermostat.

For other arrangements see installation

instructions.

7. If indoor section has a transformer with a

grounded secondary, connect the grounded

side to the BRN lead.

8. When start relay and start capacitor are

installed, start thermistor is not used.

9. CH not used on all units.

10. If any of the original wire, as supplied, must

be replaced, use the same or equivalent wire.

11. Check all electrical connections inside control

box for tightness.

12. Do not attempt to operate unit until service

valves have been opened.

13. Do not rapid cycle compressor. Compressor

must be off 3 minutes to allow pressures to

equalize between high and low side before

starting.

14. Wire not present if HPS, LPS, DTS or CTD

are used.

1.Compressor damage may

occur if system is over

charged.

2.This unit is factory charged

with R-410A in accordance

with the amount shown on the

rating plate. The charge is

adequate for most systems

using matched coils and tubing

not over 15 feet long. Check

refrigerant charge for

maximum efficiency. See

Product Data Literature for

required Indoor Air Flow Rates

and for use of line lengths over

15 feet.

3.Relieve pressure and recover

all refrigerant before system

repair or final unit disposal.

Use all service ports and open

all flow-control devices,

including solenoid valves.

4.Never vent refrigerant to

atmosphere. Use approved

recovery equipment.

CAUTION

325655-101 REV. A

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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 1 4

Tab 2a 3a

PC 101 Catalog No. 533-80091 Printed in U.S.A. Form 38ESG-1W Pg 1 1-03 Replaces: New

1 2 3 4

Summary of Contents

Page 1 - Wiring Diagrams

38ESG, 38ETG, 38EZG14, 13, 12 SEER Split-SystemAir Conditioners, Sizes 018–060Wiring DiagramsFig. 1—38ETG; 38EZG 018-048; 38ESG 024-048208/230v, 1 Pha

Page 2 - 208/230v, 1 Phase, 60 Hertz

Fig. 2—38ESG, 38ETG, 38EZG 060208/230v, 1 Phase, 60 HertzA99330CONNECTION DIAGRAMSCHEMATIC DIAGRAM (LADDER FORM)-NOTES--LEGEND-(NOTE #9)BLKorREDBLKBLK

Page 3 - 208/230v, 3 Phase, 60 Hertz

Fig. 3—38EZG 036–060208/230v, 3 Phase, 60 HertzA02252326194-101 REV. A1. Symbols are electrical r epresen tati on only.2. Compressor and f an moto r f

Page 4 - SERVICE TRAINING

A94328SERVICE TRAININGPackaged Service Training programs are an excellent way to increase yourknowledge of the equipment discussed in this manual, inc