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W8835 ENVIRAZONE PANEL
68-0258—04 6
For dual fuel equipment using heat pump and fossil fuel,
configure the panel as a heat pump and use a fossil fuel kit. Do
not use the dual fuel functionality of the VisionPRO® IAQ.
Wiring HVAC Equipment
Fig. 4. Wiring single-stage heat pump with separate
Auxiliary and Emergency Heat.
Fig. 5. Wiring single-stage heat pump with Auxiliary Heat.
Fig. 6. Wiring two-stage heat pump with separate Auxiliary
Heat.
Fig. 7. Wiring two-stage heat pump with Auxiliary Heat.
M31124
HVAC EQUIPMENT
R
H
R
C
W
1
/E
W
2
W
3
/AUX
SINGLE TRANSFORMER HEATING/COOLING
SYSTEMS REQUIRE A JUMPER TO BE
INSTALLED CONNECTING R
H
AND R
C
(FACTORY INSTALLED).
Y
1
Y
2
G
O/B
HEATING TRANSFORMER
24 VAC
EQUIPMENT
COOLING TRANSFORMER
COMPRESSOR
REVERSING VALVE (COOLING/HEATING)
FAN RELAY
C
L
AUXILIARY HEAT
1
1
FIELD INSTALLED JUMPER
M31124
HVAC EQUIPMENT
R
H
R
C
W
1
/E
W
2
W
3
/AUX
SINGLE TRANSFORMER HEATING/COOLING
SYSTEMS REQUIRE A JUMPER TO BE
INSTALLED CONNECTING R
H
AND R
C
(FACTORY INSTALLED).
Y
1
Y
2
G
O/B
HEATING TRANSFORMER
24 VAC
EQUIPMENT
COOLING TRANSFORMER
COMPRESSOR
REVERSING VALVE (COOLING/HEATING)
FAN RELAY
C
L
AUXILIARY HEAT
1
1
FIELD INSTALLED JUMPER
M31123
HVAC EQUIPMENT
R
H
R
C
C
L
W
1
/E
W
2
W
3
/AUX
SINGLE TRANSFORMER HEATING/COOLING
SYSTEMS REQUIRE A JUMPER TO BE
INSTALLED CONNECTING R
H
AND R
C
(FACTORY INSTALLED).
Y
1
Y
2
G
O/B
HEATING TRANSFORMER
24 VAC
EQUIPMENT
COOLING TRANSFORMER
EMERGENCY HEAT RELAY
AUXILIARY HEAT RELAY
FIRST STAGE COMPRESSOR
REVERSING VALVE (COOLING/HEATING)
FAN RELAY
SECOND STAGE COMPRESSOR
M31125
HVAC EQUIPMENT
R
H
R
C
C
L
W
1
/E
W
2
W
3
/AUX
SINGLE TRANSFORMER HEATING/COOLING
SYSTEMS REQUIRE A JUMPER TO BE
INSTALLED CONNECTING R
H
AND R
C
(FACTORY INSTALLED).
Y
1
Y
2
G
O/B
HEATING TRANSFORMER
24 VAC
EQUIPMENT
COOLING TRANSFORMER
AUXILIARY HEAT RELAY
FIRST STAGE COMPRESSOR
REVERSING VALVE (COOLING/HEATING)
FAN RELAY
SECOND STAGE COMPRESSOR
1
1
FIELD INSTALLED JUMPER