Lochinvar 400 - Page 53

Installation & Operation Manual
53
8 Field wiring (continued)
LOUVER RELAY
FLOW SWITCH
TANK THERMOSTAT
ROOM THERMOSTAT 3
SYSTEM SUPPLY SENSOR
BUILDING
MANAGEMENT
SYSTEM
LOUVER
PROVING SWITCH
COM
NO
LOW WATER
CUTOFF
OUTDOOR SENSOR TANK SENSOR
SHIELD
SHIELD
TO NEXT BOILER
A B
A B
FROM
PREVIOUS
BOILER
ROOM THERMOSTAT 1 ROOM THERMOSTAT 2
A
B
NOTE: CONNECTION BOARD SPLIT FOR ILLUSTRATION PURPOSES
WIRE AS
NEEDED
SYSTEM PUMP
SPEED
CONTROL
BOILER
PUMP
Figure 8-3 Low Voltage Field Wiring Connections