Honeywell Home THX9321 Prestige 2.0 Manual page 142

®
THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
TRANSFORMER
120 24
VAC VAC
1 R IS JUMPERED TO RH.
2 THE BOILER CONTROLS THE CIRCULATOR PUMP IN THIS SYSTEM.
Fig. 333. 2-Wire Zone Valve with end switch.
TRANSFORMER
120 24
VAC VAC
1 R IS JUMPERED TO RH.
Fig. 334. Series 20 hot water heat.
TRANSFORMER
120
VAC VAC
1 REMOVE THE JUMPER FROM RH TO RC WHEN USED WITH
AQ2000 SERIES PANEL.
Fig. 335. AQ2000 series panels or other hot water relay
panels.
68-0311—08
®
IAQ WITH EIM
ZONE VALVE BOILER
T
TR
T
TH
2
1
R
C
W W2 W3 Y Y2 G A
THERMOSTAT/EIM
M31477
SERIES 20 VALVE
C
R(5) B(4) W(6)
1
R
C
W W2 W3 Y Y2 G A
EIM
M31478
HOT WATER RELAY PANEL
ZONE 1
RH W
1
R
24
C
RC RH W W2 W3 Y2 G
THERMOSTAT/EIM
M31479
THERMOSTAT/EIM
TO THERMOSTAT
HEAT PUMP
O/B
AUX1
AUX2
2
L/A
1 THE BOILER IS CONTROLLING THE CIRCULATOR PUMP IN THIS DIAGRAM
2 Y2 USED WITH HEAT-PUMPS THAT HAVE 2 COMPRESSOR STAGES.
Fig. 336. Heat pump with oil forced air backup.
142
HEAT PUMP
O
Y
Y2
RELAY OIL FURNACE
G
3 T
R
C
1 T
1
M31480