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Wiring Diagrams
PGAN with Hydronic Heat
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE
SERVICING OR INSTALLING THIS UNIT.
MULTIPLE POWER SOURCES MAY BE
PRESENT. FAILURE TO DO SO MAY CAUSE
PROPERTY DAMAGE, PERSONAL INJURY
OR DEATH.
FOR A HEAT PUMP
THERMOSTAT USED
ON A STRAIGHT
COOL UNIT
GL - LOW SPEED
GH - HIGH SPEED
7
IM 1193 / Page 28 of 32
CM
OUTDOOR FAN MOTOR
COMP
COMPRESSOR
EM
EVAPORATOR MOTOR
FC
FAN CAPACITOR
FUSE
F
HPS
HIGH PRESSURE SWITCH
HTR
HEATER ELEMENT
RELAY
R
RCCF
RUN CAPACITOR
FOR COMPRESSOR AND FAN
RVC
REVERSING VALVE
TR
TRANSFORMER
VSM
VARIABLE SPEED MOTOR
VSTM
VARIABLE SPEED TERMINAL BOARD
Outdoor Motor Speed Selection
Model or Mfg. #
High Speed
Low Speed
Starts With
VSTM Black
VSTM Red
MTC15
1650
Wiring is subject to change.
1350
IO-440
02/2013
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