40GXC / 38GXC 40GXQ / 38GXQ
High---Wall Duct Free Split System Size 9k, 12k, 18k, and 24k
Installation Instructions
NOTE: Read the entire instruction manual before starting the installation.
9k & 12k
18k & 24k
TABLE OF CONTENTS
PAGE PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 3 SYSTEM REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . 3 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
38/40GXC(Q)
PARTS LIST
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Name of Part |
Qty |
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No. |
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1 |
Mounting Plate |
1 |
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2 |
Mounting Screw ST4.2X25TA |
5 |
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3 |
Remote Control |
1 |
1
2
Front Panel
3
9k & 12k Display Close Up
Remote
Control
HEAT |
COOL |
TEMPERATURE |
RUN |
DEHUMIDIFY |
SIGNAL RECEIVING WINDOW |
A08274
18k & 24k Display Close Up
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TEMPERATURE |
HEAT INDICATOR |
COOL INDICATOR |
DEHUMIDIFY MODE |
RUN |
INFRARED SIGNAL RECEPTOR |
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Drain Hose
Connecting Pipe
and Connecting Wires
A09663
Fig. 1 --- 38GXC(Q) / 40GXC(Q) 009, 012, 018 and 024 Parts List
2
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 |
Max Elevation |
Max Elevation |
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(ID over OD) |
(OD over ID) |
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9 & 12K |
65 (20) |
35 (11) |
35 (11) |
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18K |
80 (25) |
50 (15) |
50 (15) |
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24K |
100 (30) |
50 (15) |
50 (15) |
S The following are the piping sizes.
PIPE SIZES
Unit Size |
Mix Phase |
Vapor |
9, 12 & 18K |
1/4” |
1/2” |
24K |
3/8” |
5/8” |
Refrigerant Charge
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REFRIGERANT CHARGE |
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Unit Size |
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Amount of Charge lb. (kg) |
9 K |
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2.65 (1.2) |
12 K |
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2.8 (1.27) |
18 K |
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3.5 (1.6) |
24 K |
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5.4 (2.5) |
S Above charge is for piping runs up to 25 ft. (7.6 m).
SFor 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 Cable)
SThe 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.
SConsult local building codes, NEC (National Electrical Code) or CEC (Canadian Electrical Code) for special requirements.
Model Size |
Power Source |
MIN CKT AMP |
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MAX FUSE/CB |
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AMP |
9 K |
115 --- |
1 --- |
60 |
20/25 |
12 K |
115 --- |
1 --- |
60 |
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 |
SConnecting 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 |
>65 Feet (19.8 m) |
38/40GXC(Q)
3
DIMENSIONS - INDOOR
38/40GXC(Q)
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A08289 |
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Unit Size |
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Net Operating Weight |
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In. (mm) |
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In. (mm) |
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In. (mm) |
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9k |
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30.3 (770) |
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9.8 (250) |
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7.84 (1.99) |
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18.7 (8.50) |
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12k |
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32.7 (830) |
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11.2 (285) |
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8.9 (225) |
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24.2 (11.0) |
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18k |
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32.7 (830) |
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11.2 (285) |
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8.1 (206) |
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26.4 (12.0) |
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24k |
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42.9 (1090) |
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13.0 (330) |
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8.2 (208) |
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38.5 (17.5) |
DIMENSIONS - OUTDOOR
W
D
H
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A08290 |
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Unit Size |
W |
D |
H |
Net Operating Weight |
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In. (mm) |
In. (mm) |
In. (mm) |
Lbs. (Kg) |
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9k & 12k |
33.4 (848) |
12.6 (320) |
21.3 (541) |
88.0 (40) |
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18k |
33.3 (846) |
11.8 (300) |
27.0 (685) |
114.4 (52) |
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24k |
37.4 (950) |
16.5 (420) |
33.1 (840) |
140.3 (64) |
4