Carrier 50TFQ004 Installation, Start-Up And Service Instructions Manual page 49

C — Contactor, Compressor
CAP — Capacitor
CH — Crankcase Heater
COMP — Compressor Motor
DB — Defrost Board
EQUIP — Equipment
FPT — Freeze-Up Protection
Thermostat
FU — Fuse
GND — Ground
HPS — High-Pressure Switch
HR — Heater Relay
IFC — Indoor Fan Contactor
IFM — Indoor-Fan Motor
LPS — Low-Pressure Switch
LSM — Limit Switch (Motor)
OFM — Outdoor-Fan Motor
OLR — Overload Relay
P — Plug
PL — Plug Assembly
QT — Quadruple Terminal
RVS — Reversing Valve Solenoid
SAT — Supply Air Thermostat
TRAN — Transformer
LEGEND
Field Splice
Marked Wire
Terminal (Marked)
Terminal (Unmarked)
Terminal Block
Splice
Splice (Marked)
Factory Wiring
Field Control Wiring
Field Power Wiring
Accessory or Optional Wiring
To indicate common potential only,
not to represent wiring
Fig. 52 — Typical Wiring Schematic
NOTES:
1. If any of the original wire furnished must be
replaced, it must be replaced with type 90 C wire or
its equivalent.
2. Three phase motors are protected under primary
single phasing conditions.
3. Use copper conductors only.
4. Use copper, copper-clad aluminum or aluminum
conductors.
5.
VOLTAGE
RATING
24V
6. Unit will have either LSM or OLR, but not both.
49
CB
MUST TRIP
AMPS
MFG. PT. NO.
POTTER & BRUMFIELD
3.2
W2BX-1024-3.2