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CONNECTION DIAGRAM
RED or BLK
L2
CONT
L1
208/230 3Ø
POWER
21
11
SUPPLY
L3
13
23
EQUIP
GND
*HPS
BLU
BLU
YEL
BLU
*LLS
BLK
BLK
IFR
R
Y
G
INDOOR THERMOSTAT
(NOTE #6)
-LEGEND-
FACTORY POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
FIELD POWER WIRING
COMPONENT CONNECTION
FIELD SPLICE
JUNCTION
CONT
CONTACTOR
CAP
CAPACITOR (DUAL RUN)
*CH
CRANKCASE HEATER
*CHS
CRANKCASE HEATER SWITCH
COMP
COMPRESSOR
*CTD
COMPRESSOR TIME DELAY
*HPS
HIGH PRESSURE SWITCH
IFR
INDOOR FAN RELAY
*LLS
LIQ. LINE SOLENOID VALVE
*LPS
LOW PRESSURE SWITCH
OFM
OUTDOOR FAN MOTOR
* MAY BE FACTORY OR FIELD INSTALLED.
*CHS
* CH
BLK
RED or BLK
BLU
COMP
T1
T2
BLK
T3
CAP
YEL
YEL
OFM
BRN
BLK
YEL
BRN
BLK
VIO
*LPS
T2
YEL
LOGIC
T1
T3
* CTD
BRN
EXTERNAL
POWER
C
SUPPLY
R
24 V
(NOTE #3)
INDOOR BLOWER MOTOR
-NOTES-
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.
If any of the original wire, as supplied must be replaced, use the same or equivalent wire.
9.
Check all electrical connections inside control box for tightness.
10. Do not attempt to operate unit until service valves have been opened.
11. Do not rapid cycle compressor. Compressor must be off 3 minutes to allow pressures to
equalize between high and low side before starting.
12. It is imperative to connect 3Ø field power to unit with correct phasing. wrong phasing will
cause reverse rotation of scroll compressor which will result in reduced current draw,
elevated noise level and improper operation. If rotation is reversed, simply interchange any
two of the three power connections on field side.
CAUTION
1. Compressor damage may occur if system is overcharged.
2. This unit is factory charged with R-22 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. The best performance will be achieved
when the unit operates with a suction gas superheat at the compressor inlet
of 5 °F at normal rating conditions of the air conditioning and refrigeration
institute (ARI). This chart may be used to approximate the charge if ARI
rating conditions cannot be obtained. ARI rating conditions are equivalent
to DOE test "A" conditions. See product data literature for required indoor
air flow rates and for use of line lengths over 15 Ft.
3. Carefully relieve refrigerant pressure within this unit before final disposal.
Fig. 3—38BRC036–060 208/230v, 3 Phase, 60 Hertz
SCHEMATIC DIAGRAM (LADDER FORM)
L1
CONT
T1
EQUIP
11
GND
21
*CH
*CHS
OFM
*HPS
Y
G
R
INDOOR
EXTERNAL POWER SUPPLY 24 V
THERMOSTAT
3
L2
COMP
L3
T2
T3
CAP
CONT
23
13
CONT
*LPS
T2
LOGIC
T1
T3
*LLS
* CTD
IFR
R
C
324475-101 REV. A
A98016
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