Fig. 3—38BRC036–060 208/230v, 3 Phase, 60 Hertz
A98016
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.
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.
324475-101 REV. A
CONT
OFM
BRN
BLK
208/230 3Ø
POWER
SUPPLY
GND
EQUIP
L1
L3
13
23
VIO
*LPS
YEL
* CTD
*HPS
INDOOR BLOWER MOTOR
EXTERNAL
POWER
SUPPLY
24 V
(NOTE #3)
INDOOR THERMOSTAT
(NOTE #6)
R
G
Y
BRN
BLU
YEL
BLU
*LLS
BLK
BLK
LOGIC
T1
T3
T2
C
R
11
21
T2
T1
T3
BLK
YEL
YEL
BLK
YEL
CAP
COMP
* CH
BLU
IFR
L2
BLU
RED or BLK
RED or BLK
BRN
CONT
L1
11
21
*CH
EQUIP
GND
OFM
CONT
23
13
L3
*LPS
* CTD
*HPS
*LLS
IFR
THERMOSTAT
INDOOR
Y
G
R
C
R
EXTERNAL POWER SUPPLY 24 V
LOGIC
T1
T3
T2
T2
T1
T3
COMP
CAP
L2
CONT
-LEGEND-
-NOTES-
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.
CONNECTION DIAGRAM
SCHEMATIC DIAGRAM (LADDER FORM)
*CHS
BLK
*CHS
CAUTION
3
