CCI Thermal Technologies CF1 - ProVector Explosion-Proof Convection Heater - Manual (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", ensure to loosen the setscrew before removing the cover.
Installation and wiring of the heater must adhere to all applicable codes.
Allow the heater to cool down for a period of 2 minutes after operating before removing any enclosure covers.
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 90°C
(194°F).
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 M25 adaptor or optional 3/4" NPT threaded
opening or an M32 opening to accommodate the line conductors (see Figure 4 for connection details). Use
wire connectors rated for minimum 90°C (194°F).
NOTE:
1. 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 (40°C [104°F]) 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.
2. For heaters that are identified as “suitable for storage temperatures up to 150°C (302°F) the installer must ensure that the supply conductors are
rated for 150°C (302°F) and stopping box sealants are rated for 150°C (302°F).
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
– 5 –
FIGURE 3: Installation Clearances
203.0 mm (8.0”)
9.5 mm
(0.375”)
457.0 mm
(18.0”)
305.0 mm
(12.0”)
9.5 mm
(0.375”)
1219.0 mm (48.0”)
Required for ease of
installation and servicing
* On 120V units
L1 represents
neutral