User Manual
77
Installation
C.2 Electrical
WARNING
WARNING. Disconnect the power supply before
installation of the heater.
Lock the switch in the “OFF” (open) position and/
or tag the switch to prevent unexpected power
application.
For heaters marked "IIC", insure to loosen the setscrew
before removing the cover. Installation and wiring of the
heater must adhere to all applicable codes.
1. General
1.1 Use only copper conductors and approved
explosion-proof wiring methods during installation.
plate for the voltage, amperage and wattage
ratings when sizing for the appropriate conductors.
All supply conductors should be rated for operating
at temperatures up to 194°F (90°C).
1.2 Supply voltage must be within 10% of the data
plate rating. External over-current protection is
required and must meet data plate ratings for
voltage, amperage and frequency.
2. Field Wiring
Heater has been supplied with an enclosure that has a
connection details). Use wire connectors rated for
minimum 194°F (90°C).
NOTE: If remote thermostats other than the factory supplied
are used, ensure that they will not allow the room
temperature to exceed ambient temperature limitations
of the heater (104°F/40°C) and are suitable for the area’s
control devices, ensure that the voltage and amperage
ratings match the heater’s electrical ratings. If not, a
3. Final Inspection
3.1 Before application of electrical power:
– Check that all connections are secured and comply
with the wiring diagram (see Figure 6 and Figure 7,
–
– Remove any foreign objects from the heater, and
–
Element
Room
Thermostat
L1*
L2
Element
* On 120V units
L1 rep rese nts
neutral
Figure 6 – Wiring Diagram for remote mount and built-in room
Elements
DPST Room
Thermostat
L1
L2
L3
GND
Figure 7 – Wiring Diagram for remote mount and built-in room