18
ELECTRICAL CONNECTIONS
Thermostat
Install 24 Volt thermostat (not provided) in proper location.
Location of thermostat has effect on boiler system operation.
Follow instructions included with thermostat.
Electric Power Supply
Connect boiler to electrical supply in accordance with
requirements of authority having jurisdiction, or in the
absence of such requirements:
• United States. NFPA70: National Electrical Code
• Canada. Canadian Electrical Code, Part I, CSA-C22.1,
Electrical Code.
Connect 115 volt electrical supply to L1 and L2 terminals
on limit and two thermostat wires to T and T terminals on
same limit. See wiring diagram page 28.
Run separate circuit from separate over current protection
device in your electrical service entrance panel. Minimum
15 ampere circuit. Locate shutoff switch at boiler. Turn off
during any maintenance.
Permanently ground boiler. Run 14 gauge or heavier copper
wire from boiler to grounded connection in service panel or
properly driven and electrically grounded ground rod.
WARNING
Electrical shock hazard. Turn OFF electrical power sup-
ply at service panel before making electrical connections.
Failure to do so could result in death or serious injury.
!