Owner's manual
Cancels: WD 575C.90.1 WD 575B.72.1
6/15/03
DIAGRAM INDEX
*Units produced after 3/31/03.
LEGEND (Fig. 1-9)
NOTES (Fig. 1 and 2)
1. Factory wiring is in accordance with National Electri-
cal Code (NEC). Field modifications or additions
must be in compliance with all applicable codes.
2. Use copper conductors only.
3. CAUTION: Not suitable for use on systems exceeding
150 volts to ground.
4. Manual reset circuit breaker is integral to the
transformer.
NOTES (Fig. 3-8)
1. If any of the original wire furnished must be
replaced, it must be replaced with type 90° C wire or
its equivalent.
2. For thermostat and subbase part no. see price pages.
3. Set heat anticipator at .6.
4. Use copper conductors only.
5. Three-phase motors are protected under primary
single phasing conditions.
6. 39 VA available for field-installed accessories. Control
power requirement for heat pump condensing unit is
36 VA (sealed). Supplied control transformer is 75 VA.
NOTES (Fig. 9)
1. Factory wiring is in accordance with National Electri-
cal Code (NEC). Field modifications or additions
must be in compliance with all applicable codes.
2. Use copper conductors only.
UNIT SIZE
ELECTRICAL
CHARACTERISTICS
(V-Ph-Hz)
TYPE
LABEL DIAGRAM
NUMBER
FIGURE NO.
575B
072
208/230-3-60
Control Schematic and Component Arrangement Not available
1
460-3-60 2
575-3-60 2
575C
090-120
208/230-3-60
Control Schematic and Component Arrangement
38AK540179 3 or 4*
460-3-60 38AK540180 5 or 6*
575-3-60 38AK540211 7 or 8*
524A-H
090-120 Applies to all Unit Wiring Diagram Not Available 9
C—
Contactor, Compressor
CAP —
Capacitor
CB —
Circuit Breaker
CCH, CH —
Crankcase Heater
CDT —
Contactor Dummy Terminal
CLO —
Compressor Lockout
COMP —
Compressor
CTD —
Compressor Time Delay
DFC —
Defrost Control
DFT —
Defrost Thermostat
DGT —
Discharge Gas Thermostat
EQUIP —
Equipment
FM —
Fan Motor
GND —
Ground
HP, HPS —
High-Pressure Switch
IFC —
Indoor-Fan Contactor
IFM —
Indoor-Fan Motor
LAR —
Low Ambient Relay
LAS —
Low Ambient Switch
LCS —
Loss-of-Charge Switch
LLSV —
Liquid Line Solenoid Valve
LP, LPS —
Low-Pressure Switch
MMR —
Motormaster® Relay
NEC —
National Electrical Code
OF, OFM —
Outdoor-Fan Motor
OFR —
Outdoor-Fan Relay
PL —
Plug
PS —
Pressure Switch
RV —
Reversing Valve
RVS —
Reversing Valve Solenoid
TB —
Terminal Block
TRAN(S) —
Transformer
T’STAT —
Thermostat
Field Splice
Marked Wire
Terminal (Marked)
Terminal (Unmarked)
Terminal Block
Splice
Factory Power Wiring
Factory Control Wiring
Field Control Wiring
Field Power Wiring
Accessory or Optional Wiring
To indicate common potential only,
not to represent wiring.
wiring diagrams
SPLIT-SYSTEM HEAT PUMP UNITS
575C/575B
Sizes 072 to 120
with
524A-H