Typical Wiring Diagram Notes; Typical Wiring Diagram Legend - York DNP024 Technical Manual

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.
FIGURE 21 - TYPICAL WIRING DIAGRAM LEGEND
32
LEGEND :
ALS AUXILLARY LIMIT SWITCH
ASCT ANTI-SHORT CYCLE TIMER
(OPTIONAL ACCESSORY)
COMPR COMPRESSOR
EAC ELECTRIC AIR CLEANER RELAY OUTPUT
ON CONTROL BOARD, 24-1-60, 18VA MAX.
FS FREEZESTAT SWITCH (OPTIONAL ACCESSORY)
0
OPEN @ 25 F
HP HIGH PRESSURE SWITCH (OPTIONAL
ACCESSORY) OPENS @ 380 PSIG
HSP HOT SURFACE TO PILOT
HUM HUMIDIFER RELAY OUTPUT ON CONTROL
BOARD, 24-1-60, 18VA MAX.
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
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 ASCT-3 if LR only is present wire
801/BL and 805/BL are connected to M1 coil. If ASCT
only is present wire 202/Y is connected to ASCT-3. If
neither LR or ASCT are present, Wire 202/Y is connect
to M1 coil.
7. Shunt contact also used with crankcase heater.
(Optional).
Open all disconnects before servicing this unit.
DNP LEGEND WIRING DIA.
036-21366-007-A-1205
Unitary Products Group