Unitary products group D YP024 Series, Руководство по установке

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176230-BIM-A-0206
26 Unitary Products Group
TYPICAL WIRING DIAGRAM NOTES (SEE
FIGURES 14, 15, 17 AND 19)
1. All field wiring to be accomplished following city, local
and/or national codes in effect at time of installation of
this unit.
2. Motors are inherently protected.
3. See unit nameplate for maximum fuse size and minimum
circuit ampacity.
4. For the 030, 036, 042 and 048, select indoor blower
cooling speed from the Unit Wiring Diagram Table 1.
Heating speed is preset at the factory.
5. For 024, select indoor blower speed to remain within the
temperature rise range on the nameplate in heating and
to obtain approximately 400 CFM/Ton in cooling.
Unit is factory wired for low or medium speed indoor
blower operation. To change motor speed, connect
speed tap wires from indoor blower motor per Detail B
(Figure 20). Tape unused speed tap wires to prevent
shorting and secure near M2 contactor.
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.
Label all wires prior to disconnection when servic-
ing controls. Wiring errors can cause improper
and dangerous operation if any of the wire as sup-
plied 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.
Open all disconnects before servicing this unit.
FIGURE 21 - TYPICAL WIRING DIAGRAM
LEGEND
1
1. See Figures 14, 15, 17 and 19.
ALS
ASCT
COMPR
EAC
FS
HP
HSP
HUM
LP
LR
LS
M1
M2
PS
RC1/RC2
RS
T1
T2
TB2
ELECTRIC AIR CLEANER RELAY OUTPUT
LEGEND :
AUXILARY LIMIT SWITCH
ANTI-SHORT CYCLE TIMER
(OPTIONAL ACCESSORY)
COMRESSOR
ON CONTROL BOARD, 24-1-60, 18VA MAX.
FREEZESTAT SWITCH (OPTIONAL ACCESSORY)
OPEN @ 25
0
F
HIGH PRESSURE SWITCH (OPTIONAL
ACCESSORY) OPENS @ 380 PSIG
HOT SURFACE TO PILOT
HUMIDIFER RELAY OUTPUT ON CONTROL
BOARD, 24-1-60, 18VA MAX.
LOW PRESSURE SWITCH (OPTIONAL ACCESSORY)
OPEN @ 7 PSIG
LOCK OUT RELAY (OPTIOAL ACCESSORY)
LIMIT SWITCH
CONTACTOR, COMPR. & O.D.FAN
CONTACTOR, DRAFT INDUCER MOTOR
PRESSURE SWITCH MAKES @
.193 IWC NOM. (.33 IWC MAX.)
COMPR. START & OUTDOOR FAN RUN CAPACITOR
ROLL OUT SWITCH
TRANSFORMER, 24V, 40VA
TRANSFORMER, 480/240 VOLT
TERMINAL BLOCK, 24V, I.D.
MOTOR "SPEED" CONNECTION
IDENTIFIED TERMINAL ON CAPACITOR
FIELD WIRING
DNPLEGEND WIRING DIA.
ROOM THERMOSTAT 24V CONNECTIONS
TB1 ON CONTROL BOARD
FACTORY WIRING AND DEVICES
OPITIONAL WIRING AND DEVICES