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TF-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
46
SECTION 11: WIRING Heaters can be controlled using several methods.
Normally thermostats are used to control the heaters
but they can also be controlled by an Energy
Management System. Section 11.1 below illustrates
the connection for heaters controlled by a line voltage
thermostat.
To control multiple heaters on one low voltage
thermostat, See Page 47, Section 11.2.
Heaters must be grounded in accordance with
applicable codes: United States: refer to National
Electrical Code
®
NFPA 70 - latest revision; Canada:
refer to Canadian Electrical Code CSA C22.1 Part I -
latest revision.
If any of the original internal wiring must be replaced,
it must be replaced with wiring materials having a
temperature rating of at least 105° C and 600 V.
11.1 Line Voltage Thermostat Wiring
DANGER
Electrical Shock Hazard
Disconnect electric before service.
Heater must be properly grounded.
Failure to follow these instructions can result
in death or electrical shock.
L1
L2
Gnd.
NH
Gnd.
NH
Gnd.
Burners
Additional
Supply Circut
120 V - 60 Hz
Line Voltage Thermostat
Burner 1 Burner 2
Maximum 2 to 8 burners
per thermostat, depending on
thermostat chosen. (See thermostat
manufacturers specifications.)