Carrier 40GXQ, 38GXQ, 38GXC, 40GXC User Manual

40GXC / 38GXC 40GXQ / 38GXQ

Installation Instructions

NOTE: Read the entire instruction manual before starting the installation.

High---Wall Duct Free Split System

Size 9k, 12k, 18k, and 24k

TABLE OF CONTENTS

PAGE

PARTS LIS T 2.......................................

SAFETY CONSIDERATIONS 3.........................

SYSTEM REQUIREMENTS 3..........................

9k & 12k

18k & 24k

DIMENSIONS 4......................................

CLEARANCES 5.....................................

INSTALLATION GUIDE 6.............................

INDOOR UNIT INSTALLATION 6.......................

OUTDOOR UNIT INSTALLATION 7 -- 8..................

SYSTEM VACUUM AND CHARGE 9....................

START--UP 10........................................

TROUBLESHOOTING 11..............................

PARTS LIST

Part

No.

1 Mounting Plate 1 2 Mounting Screw ST4.2X25TA 5 3 Remote Control 1

Name of Part Qty

A08274

Front Panel

18k & 24k Display Close Up

38/40GXC(Q)

RUN

TEMPERATURE

HEAT INDICATOR

9k & 12k Display Close Up

COOL

TEMPERATURE

RUN

SIGNAL

DEHUMIDIFY

HEAT

RECEIVING

WINDOW

Remote Control

COOL INDICATOR

Drain Hose

DEHUMIDIFY MODE

INFRARED SIGNAL

RECEPTOR

Fig. 1 --- 38GXC(Q) / 40GXC(Q) 009, 012, 018 and 024 Parts List

Connecting Pipe and Connecting Wires

A09663

SAFETY CONSIDERATIONS

Installing, starting up, and servicing air--conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.).

Only trained, qualified installers and service mechanics should install, start--up, and service this equipment.

Untrained personnel can perform basic maintenance functions such as cleaning coils. All other operations should be performed by trained service personnel.

When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment.

Follow all safety codes. Wear safety glasses and work gloves. Keep quenching cloth and fire extinguisher nearby when brazing. Use care in handling, rigging, and setting bulky equipment.

Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes and current editions of the National Electrical Code ( NEC ) NFPA 70. In Canada, refer to current editions of the Canadian electrical code CSA 22.1.

Recognize safety information. This is the safety--alert symbol When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.Understand these signal words: DANGER, WARNING, and CAUTION. These words are used with the safety--alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

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

CAUTION

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation.

Do not bury more than 36 in. (914 mm) of refrigerant pipe in the ground. If any section of pipe is buried, there must be a 6 in. (152 mm) vertical rise to the valve connections on the outdoor units. If more than the recommended length is buried, refrigerant may migrate to the cooler buried section during extended periods of system shutdown. This causes refrigerant slugging and could possibly damage the compressor at start--up.

GENERAL

These instructions cover the installation, start--up and servicing of 38GXC(Q) outdoor and 40GXC(Q) indoor units duct free systems.

SYSTEM REQUIREMENTS

Allow sufficient space for airflow and servicing unit. See Fig. 2 and 3 for minimum required distances between unit and walls or ceilings.

Piping IMPORTANT: Both refrigerant lines must be insulated

separately.

S Minimum refrigerant line length between the indoor and outdoor

units is 10 ft. (3 m).

S The following maximum lengths are allowed:

REFRIGERANT LINE LENGTHS ft. (m)

Unit Size Max Line Length

9 & 12K 65 (20) 35 (11) 35 (11)

18K 80 (25) 50 (15) 50 (15) 24K 100 (30) 50 (15) 50 (15)

S The following are the piping sizes.

Unit Size Mix Phase Vapo r

9, 12 & 18K 1/4” 1/2”

24K 3/8” 5/8”

Refrigerant Charge

Unit Size

REFRIGERANT CHARGE

9K 2.65 (1.2) 12 K 2.8 (1.27) 18 K 3.5 (1.6) 24 K 5.4 (2.5)

S Above charge is for piping runs up to 25 ft. (7.6 m). S For piping runs greater than 25 ft. (7.6 m), add 0.1 oz. of

refrigerant per foot of extra piping up to the allowable length.

S Capillary tubes are used as metering devices.

Connecting (Power and Control

S The main power is supplied to the outdoor unit. The field

supplied connecting cable from the outdoor unit to indoor unit consists of four wires and provides the power for the indoor unit as well as the communication signal and ground between the outdoor and indoor unit. Two wires are high voltage AC power, one is low voltage and one is a ground wire.

S Consult local building codes, NEC (National Electrical Code) or

CEC (Canadian Electrical Code) for special requirements.

Model Size Power Source

9K 1 1 5 --- 1 --- 6 0 20/25 12 K 1 1 5 --- 1 --- 6 0 20/25 12 K 208/230 --- 1 --- 60 10/15 18 K 208/230 --- 1 --- 60 14/25 24 K 208/230 --- 1 --- 60 16/30

S Connecting Cable: Voltage drop on the connecting cable

should be kept to a minimum. Do not use thermostat wire. Use cable size and max length below:

18 AWG 50 Feet (16 m) 16 AWG 65 Feet (19.8 m) 14 AWG >65Feet(19.8m)

Max Elevation

(ID over OD)

PIPE SIZES

Cable)

Amount of Charge lb. (kg)

Max Elevation

(OD over ID)

MIN CKT AMP MAX FUSE/CB

AMP

38/40GXC(Q)

DIMENSIONS -- INDOOR

Unit Size

9k 30.3 (770) 9.8 (250) 7.84 (1.99) 18.7 (8.50) 12k 32.7 (830) 11.2 (285) 8.9 (225) 24.2 (11.0) 18k 32.7 (830) 11.2 (285) 8.1 (206) 26.4 (12.0) 24k 42.9 (1090) 13.0 (330) 8.2 (208) 38.5 (17.5)

38/40GXC(Q)

DIMENSIONS -- OUTDOOR

In. (mm)

A08289

Net Operating Weight

Lbs. (Kg)

Unit Size

9k & 12k 33.4 (848) 12.6 (320) 21.3 (541) 88.0 (40)

18k 33.3 (846) 11.8 (300) 27.0 (685) 114.4 (52) 24k 37.4 (950) 16.5 (420) 33.1 (840) 140.3 (64)

In. (mm)

Net Operating Weight

Lbs. (Kg)

A08290

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