Wire Zone Valve With End Switch; Series 20 Hot Water Heat; Heat Pump With Oil Forced Air Backup - Honeywell THX9321 Prestige 2.0 Product Data

TRANSFORMER
120 24
VAC VAC
R IS JUMPERED TO RH.
1
THE BOILER CONTROLS THE CIRCULATOR PUMP IN THIS SYSTEM.
2
Fig. 328. 2-Wire Zone Valve with end switch.
TRANSFORMER
120 24
VAC VAC
R IS JUMPERED TO RH.
1
Fig. 329. Series 20 hot water heat.
TRANSFORMER
120 24
VAC VAC
REMOVE THE JUMPER FROM RH TO RC WHEN USED WITH
1
AQ2000 SERIES PANEL.
Fig. 330. AQ2000 series panels or other hot water relay
panels.
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
C
RC RH W W2 W3 Y2 G
THERMOSTAT/EIM
M31479
®
THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
THERMOSTAT/EIM
TO THERMOSTAT
HEAT PUMP
O/B
AUX1
AUX2
2
L/A
THE BOILER IS CONTROLLING THE CIRCULATOR PUMP IN THIS DIAGRAM
1
Y2 USED WITH HEAT-PUMPS THAT HAVE 2 COMPRESSOR STAGES.
2
Fig. 331. Heat pump with oil forced air backup.
143
®
IAQ WITH EIM
HEAT PUMP
O
Y
Y2
RELAY OIL FURNACE
G
3 T
R
C
1 T
68-0311—02
1
M31480