Install Instructions

Table Of Contents
DHW
Low Voltage Connections
CH
L G N L G N L G N L G N L G N L G N L G N
FLAME PUMP 4 PUMP 3
D
HW PUMP
CH PUMP
POWER SUPPLY
ALARM
Zone 2
Thermostat
Zone 1
Thermostat
Outdoor Sensor
Line Voltage Connections
Reset Limit
Connections
68
Manual Auto
120V/15A
Service
FOUR ZONE SWITCHING RELAY
W
ITH OPTIONAL PRIORITY
MODE
RESET NORMAL
SLAVE
MASTER
FUSE 1 AMP
ON
OFF
ZONE 4
PRIORITY
68
68
Zone 3
Thermostat
CH2
Thermostat
S
ystem
Sensor
M
odulation
Signal
CH2
Thermosta
t
CH1
Thermostat
O
utdoor
Sensor
DHW
Sensor or
A
quastat
Modbus
DHW Sensor
ZONE4ZONE3ZONE2ZONE1
PLUG IN CARDS
1234
E
XPANSION
INPUT
POWER
120 VOLT CIRCULA TORS
ZONE4ZONE3ZONE2ZONE1
ZRZC
X X
END
SWITCH
120 VAC
INPUT
(H & N)
37
8.0 External Wiring
664A0100 - Rev. A
Fig. 24: Multiple Zone Field Wiring using Zone Circulators & Zone Relay Panel