Specifications

FOUR ZONE SWITCHING RELAY
WITH OPTIONAL PRIORITY
ZONE 4
ON OFF
PRIORITY
120V RELAY
FUSE 1 AMP
24 VAC POWER
MASTER
1234
PLUG-IN CARDS
RESET NORMAL
SLAVE
POWER CONTROL INTERFACE
THERMOSTATS
ZONE 1 ZONE 2 ZONE 3 ZONE 4
120 VAC INPUT
TO: "TT" ON BOILER
120 VOLT CIRCULATORS
ZC ZR
X X
END
SWITCH
ZONE1 ZONE2 ZONE3 ZONE4
POWER
INPUT
ZONE 2 POWER ZONE 1 ZONE 3 ZONE 4
JUMPER
H
N
ZONE
CONTROL
BOIL
SEN
OUT
SEN
BOILER SENSOR
OUTDOOR
SENSOR
PC700
BOILER
SWITCH SETTINGS
Master/Slave: Master Reset/Normal: Reset Priority Zone: On or Off
SR 504-EXP
T
21
PC700 Boiler Reset Control Connected to EXP Switching Relay