Honeywell Home THX9321 Prestige 2.0 Manual page 144

®
THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
THERMOSTAT/EIM
TO THERMOSTAT
CONV
W
W2
W3
L
1 CONFIGURE THE THERMOSTAT TO ENERGIZE THE FAN
WITH A CALL FOR HEAT.
THE THERMOSTAT WILL ENERGIZE ONLY THE FAN WITH
2
A CALL FOR STAGE 1 HEAT. IF THE WOOD STOVE IS HOT,
HEAT COMES FROM THE FAN COIL. IF THE WOOD STOVE
IS COLD, ONLY THE FAN RUNS. THE THERMOSTAT WILL
UPSTAGE TO THE FURNACE AS NEEDED TO MAINTAIN
THE TEMPERATURE.
Fig. 338. Wood stove-fired hot water fan coil with forced
air furnace backup heat.
68-0311—08
®
IAQ WITH EIM
1
FURNACE
W
Y
G
R
C
2
M31482
THERMOSTAT/EIM
TO THERMOSTAT
CONV
W
W2
W3
L
1 THE BOILER IS CONTROLLING THE CIRCULATOR PUMP
IN THIS DIAGRAM.
Fig. 339. Hot water radiant heat with backup heat (single
zone application).
144
FURNACE RELAY BOILER
3 T
W
Y
1 T
G
R
1
C
M31483