Typical wiring schematics, Typical wiring schematics ,248 – Bryant 581A/B User Manual
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TYPICAL WIRING SCHEMATICS — 581A
LEGEND
AHA
—
Adjustable Heat Anticipator
C
—
Contactor, Compressor
CAP
—
Capacitor
CB
—
Circuit Breaker
CC
—
Cooling Compensator
CH
—
Crankcase Heater
CLO
—
Compressor Lockout
COMP
—
Compressor Motor
CR
—
Control Relay
DM
—
Damper Motor
DU
—
Dummy Terminal
EQUIP —
Equipment
FPT
—
Freeze Protection Thermostat
FU
—
Fuse
GND
—
Ground
HPS
—
High-Pressure Switch
HS
—
Hall Effect Sensor
HV
—
High Voltage
I
—
Ignitor
IDM
—
Induced Draft Motor
IFC
—
Indoor Fan Contactor
IFM
—
Indoor (Evaporator) Fan Motor
IGC
—
Integrated Gas Unit Controller
L
—
Light
LOR
—
Lockout Relay
LPS
—
Low-Pressure Switch
LS
—
Limit Switch
MGV
—
Main Gas Valve
OFC
—
Outdoor Fan Contactor
OFM
—
Outdoor Fan Motor
PL
—
Plug Assembly
PRI
—
Primary
QT
—
Quadruple Terminal
RS
—
Rollout Switch
SW
—
Switch
TB
—
Terminal Block
TC
—
Thermostat-Cooling
TH
—
Thermostat-Heating
TRAN
—
Transformer
Terminal (Marked)
Terminal (Unmarked)
Terminal Block
Splice
Factory Wiring
Field Wiring
Option/Accessory Wiring
To indicate common potential
only. Not to represent wiring.
581A155, 460-3-60 Shown
a48-7474
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81A1
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