Honeywell THX9321 Prestige 2.0 Product Data page 147

THERMOSTAT/EIM
TO THERMOSTAT
CONV
W
W2
ZONE 1
W3
L
HZ311, HZ322, OR HZ432 ZONE PANELS COULD BE USED TO
1
CONTROL A FORCED AIR FURNACE ZONED WITH DAMPERS.
AN AQ2000 SERIES HOT WATER ZONE PANEL OR OTHER
2
RELAY-BASED HOT WATER ZONE 3 PANEL COULD BE USED.
Fig. 336. Hot water radiant heat with backup forced air
heat. Zoned with forced air zone panel and hot water
panel.
THX9321 PRESTIGE
RELAY
3
W
Y
1
G
R
C
RH W
ZONE 1
1
HOT WATER
RELAY PANEL
2
M31485
®
2.0 AND THX9421 PRESTIGE
THERMOSTAT/EIM
TO THERMOSTAT
CONV
W
W2
W3
L
CONFIGURE THE THERMOSTAT TO ENERGIZE THE FAN
1
WITH A CALL FOR HEAT.
THE BOILER IS CONTROLLING THE CIRCULATOR PUMP
2
IN THIS DIAGRAM.
Fig. 337. Hot water fan coil with forced air furnace backup
147
®
IAQ WITH EIM
FURNACE RELAY BOILER
3 T
W
Y
1 T
G
R
2
C
1
M31486
heat.
68-0311—02