Honeywell THX9321 Prestige 2.0 Product Data page 146

®
THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
Fig. 335. Hot water radiant heat with backup forced air heat. Zoned with forced air zone panel and zone valves.
68-0311—02
®
THERMOSTAT/EIM
TO THERMOSTAT
CONV
W
W2
ZONE 1
W3
L
HZ311, HZ322, OR HZ432 ZONE PANELS COULD BE USED TO CONTROL A FORCED AIR FURNACE
1
ZONED WITH DAMPERS.
THE BOILER IS CONTROLLING THE CIRCULATOR PUMP IN THIS DIAGRAM.
2
IAQ WITH EIM
ZONE VALVE
RELAY
TR
3
W
Y
TH
1
G
R
TRANSFORMER
C
C
24
VAC
R
1
146
BOILER
T
2
T
120
VAC
M34526