Instructions / Assembly

507296-02C Page 3 of 12mrcool.com
Figure 1. Rigging Unit
Figure 2. Typical Field Wiring
CAUTION
Unpacking
Carefully remove outer packaging material and discard.
corner and seal the shipping openings in the base from
prevent air leakage during unit operation.
Service Access
Access to all serviceable components is provided by four
WARNING
Clearances
All units require certain clearances for proper operation
and service. Refer to Table 1 for the minimum clearances
proper unit operation.
Do not permit overhanging structures or shrubs to
obstruct condenser air discharge outlet.
Table 1. Minimum Clearances
Clearance to
Combustibles
Clearance for
Service Access
Front of unit
24 in.
Back of unit
24 in.
Right side
24 in.
Base of unit
Top of unit 48 in.
Compressor
adjusted and ready for operation. Do not loosen
compressor mounting bolts.
Electrical Wiring
the installer. Refer to the unit rating plate for maximum
REDUCE
TO
6.00
REDUCE
TO
W1
C L
R
O
Y1
FAN
O-OUT
LO-PS
DF
HI-PS
COMMON
Y1 OUT
2
2
24 V
Y
W2
RED
YEL
BLU WHT
GRN
ORN
2
W1 & W2 CAN BE USED TO STAGE ELECTRIC HEAT ACCESSORY ON 15 & 20KW MODELS
5, 7.5 & 10KW HEATER ACCESSORIES FUNCTION OFF W1 ONLY.
WHT
DEFROST CONTROL
P-6
P-5
G
W1
C R O
THERMOSTAT
537663-01
CONNECTION DIAGRAM, HEAT PUMP - PACKAGED
NOTE: IF ANY OF THE ORIGINAL WIRE IS REPLACED THE SAME SIZE AND TYPE WIRE MUST BE USED. USE COPPER CONDUCTOR ONLY, MIN 75 C WIRE CONNECTION MUST BE JUMPERED WHEN PRESSURE SWITCH IS NOT USED.
LINE VOLTAGE FIELD INSTALLED
WARNING- ELECTRIC SHOCK HAZARD. UNIT MUST BE GROUNDED IN ACCORDANCE WITH NATIONAL AND LOCAL CODES.
Note: Because the Pressure Switches are monitored only when "Y1" (Input) is active, the code for pressure switch open will not be seen when "Y1" is off. Instead, the "Normal Operation" or Also, when a pressure switch opens and caused a short cycle lockout, the pressure switch-open code will be seen until it closes, then the short cycle lockout code will flash unless it has already
REV. VALVE
DEFROST T'STAT