User Guide

6
Monitron S2 Boiler Operation and Installation Instructions
LOW
VOLTAGE
(24 V)
TERMINAL
BLOCK
LINE VOLTAGE (120V)
TERMINAL “B” LOCK
FOR OUTDOOR
THERMOSTAT IF
USED OR JUMPERED
IF NOT.
2
1
T T
BOILER
A
B
MULTIZONING OF BOILER;
PUMP ZONING SYSTEM USING R845A RELAY
Figure 6. Typical Zoning Valve Wiring
Figure 7. Multi-Zoning of boiler; pump zoning system using R845A relay.