CCI Thermal Technologies CX1 - ProVector Explosion-Proof Convection Heater - Manuel (Page 5)

ELECTRICAL
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.
GENERAL
1. Use only copper conductors and approved explosion-proof wiring methods during installation. Refer to the
“Technical Data” Table or heater data 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).
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.
FIELD WIRING
1. Heater has been supplied with an enclosure that has a standard 3/4” NPT threaded opening to
accommodate the line conductors (see Figure 4 for 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 hazardous atmosphere classification. When using any control devices,
ensure that the voltage and amperage ratings match the heater’s electrical ratings. If not, a
contactor may be required.
FINAL INSPECTION
1. Before application of electrical power:
a. check that all connections are secured and comply with the wiring diagram (see Figure 4) and
applicable code requirements,
b. confirm that the supply voltage is compatible with the data plate specifications,
c. remove any foreign objects from the heater, and
d. ensure all external fittings and enclosure covers are secured.
Element
Room
Thermostat
FIGURE 4: Wiring Diagram for remote mount and built-in room thermostats
L1*
L2
Element
* On 120V units
L1 represents
neutral
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FIGURE 3: Installation Clearances