Honeywell THX9321 Prestige 2.0 Product Data page 145

THERMOSTAT/EIM
TO THERMOSTAT
CONV
W
W2
W3
L
CONFIGURE THE THERMOSTAT TO ENERGIZE THE FAN
1
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. 333. Wood stove-fired hot water fan coil with forced air
furnace backup heat.
1
FURNACE
W
Y
G
R
C
2
M31482
®
THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
THERMOSTAT/EIM
TO THERMOSTAT
CONV
W
W2
W3
L
THE BOILER IS CONTROLLING THE CIRCULATOR PUMP
1
IN THIS DIAGRAM.
Fig. 334. Hot water radiant heat with backup heat (single
145
®
IAQ WITH EIM
FURNACE RELAY
3
W
Y
1
G
R
C
M31483
zone application).
BOILER
T
T
1
68-0311—02