Honeywell Home THX9321 Prestige 2.0 Manual page 145

TO THERMOSTAT
1 HZ311, HZ322, OR HZ432 ZONE PANELS COULD BE USED TO CONTROL A FORCED AIR FURNACE
ZONED WITH DAMPERS.
2 THE BOILER IS CONTROLLING THE CIRCULATOR PUMP IN THIS DIAGRAM.
Fig. 340. Hot water radiant heat with backup forced air heat. Zoned with forced air zone panel and zone valves.
THX9321 PRESTIGE
THERMOSTAT/EIM
CONV
W
W2
ZONE 1
W3
W
Y
G
L
R
C
1
®
2.0 AND THX9421 PRESTIGE
RELAY ZONE VALVE BOILER
3 TR T
1 TH T
TRANSFORMER
C
24
VAC
R
145
®
IAQ WITH EIM
2
120
VAC
M34526
68-0311—08