Honeywell 69-2480EF05 用户手册
Wiring (continued)
TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—05
22
Follow this diagram if using a
TrueIAQ (DG115EZIQ)
.
Follow this diagram
for
for
Alternate Interlock
Wiring with Forced Air
System
System
The ERV/HRV is interlocked with the forced air system and is used in conjunction with older-style
thermostats where the G and Y terminals are coupled together in the thermostat (fan and cool are
simultaneously energized).
This wiring method will prevent turning on the cooling system when the ventilator turns on the furnace fan.
NOTE: Only use this wiring method for systems where G and Y are coupled at the thermostat.
thermostats where the G and Y terminals are coupled together in the thermostat (fan and cool are
simultaneously energized).
This wiring method will prevent turning on the cooling system when the ventilator turns on the furnace fan.
NOTE: Only use this wiring method for systems where G and Y are coupled at the thermostat.
OLDER -STYLE
THERMOSTAT
FAN (G) & COOL (Y)
ARE COUPLED
FORCED AIR SYSTEM
(FURNACE)
24-VOLT
TERMINAL BLOCK
FAN TIMER
OR OTHER
WALL
CONTROL
POWERED
VENTILATOR
M28992
C
Y
W
G
R
Y
W
G
R
M28993
VENT
VENT
DEHUM
DEHUM
TrueIAQ