HVaC WIRIng DIagRaMs
HeaT PuMP sIngle TRansfoRMeR (use JuMPeR WIRe)
1
THERMOSTAT
2
3
HeaT PuMP TWo TRansfoRMeR (ReMoVe JuMPeR WIRe)
1
THERMOSTAT
2
3
1
R and C can be
powered from the
HVAC equipment
transformer or any
other constantly
powered 24VAC
source.
8
C
R
HEAT PUMP TRANSFORMER
RC
RH
HC
HP
W
W
1
HEATING
st
W2
W2
2
HEATING
nd
W3
B
REVERSING VALVE
Y
Y
1
COMPRESSOR
st
Y2
Y2
2
COMPRESSOR
nd
Y3
O
REVERSING VALVE
G
G
FAN
L
FAULT DETECT
C
EQ
1
TRANSFORMER
C
R
HEAT PUMP TRANSFORMER
RC
RH
HEATING TRANSFORMER
HC
HP
W
W
1
HEATING
st
W2
W2
2
HEATING
nd
W3
B
REVERSING VALVE
Y
Y
1
COMPRESSOR
st
Y2
Y2
2
COMPRESSOR
nd
Y3
O
REVERSING VALVE
G
G
FAN
L
FAULT DETECT
C
EQ
InDooR aIR QualITy WIRIng DIagRaMs
InDooR aIR QualITy WIRIng WITH sePaRaTe TRansfoRMeRs
HUM
DHnc
DH
com
DH
no
VNT
EAC
note: Outputs are 24VAC dry contact . Please see individual product installation instructions for more details .
InDooR aIR QualITy WIRIng WITH a sIngle TRansfoRMeR
HUM
DH
nc
DH
com
DH
no
VNT
EAC
note: Outputs are 24VAC dry contact . Please see individual product installation instructions for more details .
TRANSFORMER
HUMIDIFIER
DEHUMIDIFIER
TRANSFORMER
NORMALLY
CLOSED DAMPER
TRANSFORMER
PILOT RELAY FOR
120 VAC TO EAC
HUMIDIFIER
TRANSFORMER
DEHUMIDIFIER
NORMALLY
CLOSED DAMPER
PILOT RELAY FOR
120 VAC TO EAC
9