Filter
Top Products
Unitary Products Group 27
66297-YIM-C-0205
TYPICAL WIRING DIAGRAM LEGEND (See page 24, 25 and 25)
CB
CCH
COMPR
DS
F1 F2 F3
F4 F5 F6
F7 F8 F9
F24
FS
HP
HTR 1
HTR 2
HTR 3
HTR 4
HTR 5
HTR 6
K1
K2
K3
K7
LP
LS
M1
M2
M3
PTCR
RC1/RC2
RC1
RC2
RC3
RVS
S2/P2
S3/P3
S4/P4
S3/P3
T1
TB2
CIRCUIT BREAKER 24V, 3 AMP
CRANKCASE HEATER (OPTIONAL)
COMPRESSOR
DEFROST SENSOR, CLOSES @ 31˚F, OPENS @ 55˚F.
FUSES, LINE VOLTAGE - 60 AMP (10, 15, 20 & 25 KW ELEC HEAT)
FUSES, LINE VOLTAGE - 30 AMP (10, 15, 20 & 25 KW ELEC HEAT)
FUSES, LINE VOLTAGE - 30 AMP (20, 25 KW ELEC HEAT)
FUSE 24V SECONDARY, 5 AMP
FREEZESTAT SWITCH (OPTIONAL ACCESSORY) OPEN @ 26˚ F
HIGH PRESSURE SWITCH (OPTIONAL ACCESSORY) OPENS @ 280 PSIG
ELECTRIC HEATER (OPT. ACCSSRY: ALL KW ELEC HEAT)
ELECTRIC HEATER (OPT. ACCSSRY: 7.5, 10, 15, 20 & 25 KW ELEC HEAT)
ELECTRIC HEATER (OPT. ACCSSRY: 20 & 25 KW ELEC HEAT)
ELECTRIC HEATER (OPT. ACCSSRY: 15, 20 & 25 KW ELEC HEAT)
ELECTRIC HEATER (OPT. ACCSSRY: 20 & 25 KW ELEC HEAT)
ELECTRIC HEATER (OPT. ACCSSRY: 20 & 25 KW ELEC HEAT)
RELAY INDOOR FAN MOTOR
RELAY ELECTRIC HEATER
RELAY ELECTRIC HEATER, 24 VDC COIL
RELAY LIMIT TRIP, 25 VDC COIL
LOW PRESSURE SWITCH (OPTIONAL ACCESSORY) OPEN @ 7 PSIG
LIMIT SWITCH, ELECTRIC HEAT (PART OF ELEC HEAT ACCESSORY)
CONTACTOR, COMPRESSOR & OUTDOOR FAN
CONTACTOR, ELECTRIC HEAT, 230V COIL
CONTACTOR, ELECTRIC HEAT, 230V COIL
START ASSIST (OPTIONAL DEVICE)
COMPRESSOR START & OUTDOOR FAN RUN CAPACITOR
COMPRESSOR START CAPACITOR (ALTERNATE)
OUTDOOR FAN RUN CAPACITOR (ALTERNATE)
INDOOR FAN RUN CAPACITOR
REVERSING VALVE SOLENOID
SOCKET/PLUG CONNECTION ON FAN CONTROL BOARD, LOW VOLTAGE
SOCKET/PLUG CONNECTION ON FAN CONTROL BOARD, LINE VOLTAGE
SOCKET/PLUG CONNECTION ON ID FAN MOTOR, 24V
SOCKET/PLUG CONNECTION ON ID FAN MOTOR, 230V
TRANSFORMER, 24V, 40 VA
TERMINAL BLOCK ECM MOTOR "SPEED" CONNECTIONS
IDENTIFIED TERMINAL ON RUN CAPACITOR
ROOM THERMOSTAT 24V CONNECTIONS
TB1 ON FAN/ELEC HEAT CONTROL BOARD
FACTORY WIRING AND DEVICES
OPTIONAL WIRING AND DEVICES
FIELD WIRING
TYPICAL WIRING DIAGRAM NOTES (See page 24, 25 and 25)