Bryant 40GRQ, 619FB, 538FR, 38GRQ Installation Instruction
40GRQ / 619FB / 38GRQ / 538FR
High- Wall Ductless Split System
Sizes 09 - 18
Installation Instruction
NOTE: Read the entire instruction manual before starting the installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 2.........................
GENERAL 2.........................................
SYSTEM REQUIREMENTS 2...........................
Piping 2.........................................
DIMENSIONS- INDOOR 4.............................
DIMENSIONS- OUTDOOR 5...........................
CLEARANCES- INDOOR 6............................
CLEARANCES- OUTDOOR 6..........................
INSTALLATION GUIDE 7..............................
INDOOR UNIT INSTALLATION 7.......................
Install Mounting Plate 7.............................
Drill Hole in Wa ll for Interconnecting Piping, Drain
and Wiring 7.....................................
OUTDOOR UNIT INSTALLATION 8.....................
Piping Connections to Outdoor Unit 8.................
INSTALL ALL POWER, INTERCONNECTING WIRING AND
PIPING TO INDOOR UNIT 9...........................
SYSTEM VACUUM AND CHARGE 9....................
START- UP 11........................................
WIRING DIAGRAMS 12...............................
TROUBLESHOOTING 13..............................
The following parts are included in your indoor unit. Please
contact your dealer if any parts are damaged or missing.
Tabl e 1— P art s Li st
Mounting Plate 1
Mounting Hardware 7
Remote Control 1
Remote Control Holder 1
Battery (1.5V) 2
Parts Qty
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
outdoor and indoor units ductless systems.
SYSTEM REQUIREMENTS
Allow sufficient space for airflow and servicing unit. See Fig. 4 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.
Table 2— Maximum Lengths
System Size
Min. Piping Length ft (m) 10 (3) 10 (3) 10 (3)
Standard Piping Length ft (m) 25 (7.6) 25 (7.6) 25 (7.6)
Max. outdoor- indoor height difference ft (m) 32.8 (9.9) 32.8 (9.9) 32.8 (9.9)
Max. Piping Length with no additional refrigerant charge ft (m) 25 (7.6) 25 (7.6) 25 (7.6)
Max. Piping Length ft (m) 82 (25) 82 (25) 82 (25)
Piping
Refrigerant
* Charge is for piping that runs up to 25 ft. (7.6 m)
** For piping runs greater than 25 ft. (7.6 m), add specified amount of charge per foot of extra piping, up to the allowable length.
*** EXV - Electronic Expansion Device, Capillary tubes are used as metering devices
Additional refrigerant charge (between Standard – Max piping length)
Gas Pipe (size - connection type) in
Liquid Pipe (size - connection type) in
Refrigerant Type R410A R410A R410A
Charge Amount
Oz/ft
(g/M)
Lbs
(kg)
9K
(208- 23 V)
0.2 (18.6) 0.2 (18.6) 0.2 (18.6)
1/4 flare
connection
1/2 flare
connection
3.1 (1.4) 3.1 (1.4) 3.1 (1.4)
12K
(208- 230 V)
1/4 flare
connection
1/2 flare
connection
18K
(208- 230 V)
1/4 flare
connection
5/8 flare
connection
2
All wires must be sized per NEC (National Electrical Code) or
CEC (Canadian Electrical Code) and local codes. Use Electrical
Data table MCA (minimum circuit amps) and MOCP (maximum
over current protection) to correctly size the wires and the
disconnect fuse or breakers respectively.
Per caution note, only copper conductors with a minimum 300 volt
rating and 2/64- -inch thick insulation must be used. The use of
BX cable is not recommended.
Recommended Connection Method for Power
Communication Wiring - Power and Communication W
and
iring:
The main power is supplied to the outdoor unit. The field supplied
14/3 power/communication wiring from the outdoor unit to indoor
unit consists of four (4) wires and provides the power for the
indoor unit. Two wires are high voltage AC power, one is
communication wiring and the other is a ground wire.
Recommended Connection Method for Power
Communication Wiring (To minimize communication
interfer
ence)
and
wiring
Power Wiring:
The main power is supplied to the outdoor unit. The field supplied
power wiring from the outdoor unit to indoor unit consists of three
(3) wires and provides the power for the indoor unit. Two wires are
high voltage AC power and one is a ground wire.
To minimize voltage drop, the factory recommended wire size is
14/2 stranded with a ground.
Communication Wiring:
A separate shielded copper conductor only, with a minimum 300
volt rating and 2/64- inch thick insulation, must be used as the
communication wire from the outdoor unit to the indoor unit.
Please use a separate shielded 16GA stranded control wire.
!
CAUTION
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
S Wires should be sized based on NEC and local codes.
S Use copper conductors only with a minimum 300 volt
rating and 2/64 inch thick insulation.
!
CAUTION
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
S Be sure to comply with local codes while running wire
from indoor unit to outdoor unit.
S Every wire must be connected firmly. Loose wiring may
cause terminal to overheat or result in unit malfunction.
A fire hazard may also exist. Therefore, be sure all
wiring is tightly connected.
S No wire should be allowed to touch refrigerant tubing,
compressor or any moving parts.
S Disconnecting means must be provided and shall be
located within sight and readily accessible from the air
conditioner.
S Connecting cable with conduit shall be routed through
hole in the conduit panel.
Table 3—Electrical Data
UNIT
OPERVOLTAGE-
SIZE
9K
12K 9.5 40 0.37 0.04 30 0.1 0.027 20 13 20
18K 14.5 30 0.48 0.12 90 0.1 0.027 20 19 30
MAX / MIN*
253 / 187 208-230/1/60
COMPRESSOR OUTDOOR FAN INDOOR FAN
V/PH/HZ RLA LRA V/PH/HZ FLA HP W V/PH/HZ FLA HP W
8.5 35
208-230/1/60
0.37 0.04 30
0.1 0.027 20 12 15
208-230/1/60
MCA
MAX FUSE
CB AMP
3
DIMENSIONS - INDOOR
Fig. 1 - Indoor Unit Dimensions
Table 4—Indoor Unit Dimensions
Model
09/12K 37 4/5 12 3/5 8
18K 37 4/5 12 3/5 8
W H D Q
21/6
23/4
4
DIMENSIONS - OUTDOOR
Fig. 2 - Outdoor Unit (Sizes 9 and 12)
Fig. 3 - Outdoor Unit (Size 18)
5
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