TYPICAL WIRING DIAGRAM NOTES
1.All field wiring to be accomplished following city, local and/or national codes in effect at time of installation of this unit.
2.Caution: Label all wires prior to disconnection when ser- vicing controls. Wiring errors can cause improper and dangerous operation if any of the wire as supplied with this unit must be removed it must be replaced with type 105°C, 600V wire or equivalent clearly renumbered for identification. Verify proper operation after servicing.
3.Motors are inherently protected.
4.See unit nameplate for maximum fuse size and minimum circuit ampacity.
036-21366-007-A-1205
5.Select indoor blower cooling speed from unit wiring dia- gram Table 1. Heating speed is preset at the factory.
6.If both LR and ASCT are present, wire 801/BL and 805/ BL are connected to
7.Shunt contact also used with crankcase heater. (Optional).
Open all disconnects before servicing this unit.
|
| LEGEND : |
ALS | AUXILLARY LIMIT SWITCH | |
ASCT | ||
|
| (OPTIONAL ACCESSORY) |
COMPR | COMPRESSOR | |
EAC | ELECTRIC AIR CLEANER RELAY OUTPUT | |
|
| ON CONTROL BOARD, |
FS | FREEZESTAT SWITCH (OPTIONAL ACCESSORY) | |
|
| OPEN @ 250 F |
HP | HIGH PRESSURE SWITCH (OPTIONAL | |
|
| ACCESSORY) OPENS @ 380 PSIG |
HSP | HOT SURFACE TO PILOT | |
HUM | HUMIDIFER RELAY OUTPUT ON CONTROL | |
|
| BOARD, |
LP | LOW PRESSURE SWITCH (OPTIONAL ACCESSORY) | |
|
| OPEN @ 7 PSIG |
LR | LOCK OUT RELAY (OPTIONAL ACCESSORY) | |
LS | LIMIT SWITCH | |
M1 | CONTACTOR, COMPR. & O.D.FAN | |
M2 | CONTACTOR, DRAFT INDUCER MOTOR | |
PS | PRESSURE SWITCH MAKES @ | |
|
| .193 IWC NOM. (.33 IWC MAX.) |
RC1/RC2 | COMPR. START & OUTDOOR FAN RUN CAPACITOR | |
RS | ROLL OUT SWITCH | |
T1 | TRANSFORMER, 24V, 40VA | |
T2 | TRANSFORMER, 480/240 VOLT | |
TB2 | TERMINAL BLOCK, 24V, I.D. | |
|
| MOTOR "SPEED" CONNECTION |
|
| IDENTIFIED TERMINAL ON CAPACITOR |
|
| ROOM THERMOSTAT 24V CONNECTIONS |
|
| TB1 ON CONTROL BOARD |
|
| FACTORY WIRING AND DEVICES |
|
| |
|
| OPTIONAL WIRING AND DEVICES |
|
| FIELD WIRING |
|
| DNP LEGEND WIRING DIA. |
|
|
|
FIGURE 21 - TYPICAL WIRING DIAGRAM LEGEND
32 | Unitary Products Group |
