Honeywell Prestige 2.0 THX9421 - Page 149

THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ WITH EIM
149 68-0311—07
Fig. 340. Hot water radiant heat with backup forced air heat. Zoned with forced air zone panel and zone valves.
TRANSFORMER
24
VAC
120
VAC
M34526
ZONE VALVE
TR
TH
END SWITCH
C
R
W
W2
W3
W
Y
G
R
C
HZ311, HZ322, OR HZ432 ZONE PANELS COULD BE USED TO CONTROL A FORCED AIR FURNACE
ZONED WITH DAMPERS.
THE BOILER IS CONTROLLING THE CIRCULATOR PUMP IN THIS DIAGRAM.
L
TO THERMOSTAT
THERMOSTAT/EIM
CONV
ZONE 1
1
2
1
2
BOILER
T
T
RELAY
3
1