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11.0
The connection boxes at the ends of the heater each have
a volume of 56 in ³ (917 cm ³ ) for the OKH and OKD and 12 in
cm
) for the OKB.
3
12.0
Supply connectors to the heater must be suitable for
194°F(90°C). A flexible (BX) metal covered wire is recommended
for applications protected from outside weather conditions.
13.0
For short circuit protection, heaters must be installed with
proper fast acting fuses or breakers as close as possible to the
amperage draw of the unit(s), in compliance with the local electrical
codes.
Heaters with quartz tube or quartz lamp type
heating elements are suitable for horizontal
mounting only. Heaters with metal sheathed
heating elements can be mounted in any
desired position.
For wiring (all units except the Type R unit), first remove
14.0
the top channel to install the conduit connector fitting and then
connect the supply and ground wires to the pigtail leads. Re-install
the channel and leave it in place unless removal is required for
servicing. The Type R unit has a moisture proof housing enclosing
the terminals of a "U" shaped metal sheathed element. Use rigid
conduit (½") to ensure moisture protection.
When making wiring connections to the heater
DO NOT pull power connection wires from end
cover. Pulling the wires could eliminate the
expansion wire loop at the element end
connection and may result in damage to wire
insulation.
15.0
Follow this procedure and Fig. 2 when installing the tube or
lamp:
15.1
Disconnect power at source.
15.2
Remove the terminal covers at each end of the heater.
15.3
Remove the keeper screw on one retainer bracket and slide
the ceramic element holder aside.
15.4
Feed the element lead wire through the hole in the ceramic
holder at the fixed end first. Slide the ceramic holder removed in
15.3 over the element so that the element is captured in both ceramic
holders and then reinstall the keeper screw.
15.5
Loosen the electrical terminal nut on the ceramic blocks to
permit connection of the power and lead wires.
15.6
To connect the element lead wires, slide the ceramic holders
as far as possible toward the centre of the fixture and loop the
element wire over the electrical terminal leaving very little slack in
the wire. Note that the ceramic blocks are designed to slide freely
with element thermal expansion and the taut lead wires help to
secure the element in place.
15.7
Connect the power wires to the electrical terminals and
install terminal covers.
15.8
Before energizing, wipe the quartz sheath and reflector with
a cloth or paper towel dampened with alcohol.
CCI Thermal Technologies Inc. 2767 Brighton Road, Oakville, ON L6H 6J4 Tel. (905) 829-4422 Fax (905) 829-4430
(196
3
ELEMENT LEAD WIRE
TERMINATE WITH VERY
LITTLE SLACK
FIG. 2 – TYPICAL WIRING ATTACHMENT
For metal sheathed heaters, prior to operation
an insulation resistance check must be
performed. Heater with values less than 1 MΩ Ω Ω Ω Ω
should follow a drying process. Please contact
factory for details on procedure if heater is
under 1 MΩ Ω Ω Ω Ω .
16.0
Tighten set screw in end casting (one end only) after
installing fixture and setting angle of horizontal tilt. This screw must
be tight even if the fixture is not tilted.
17.0
Energize the heater at the voltage shown on the nameplate
and visually check the element to ensure that it slides freely on
expansion. A small sag is normal, especially on longer heaters.
18.0
Heaters with metal sheathed elements which have not been
energized for a prolonged period shall be restarted under close
supervision for the first thirty minutes of operation.
Disconnect all power before installing or
servicing the heater. Failure to do so could
result in personal injury and/or property
damage. All maintenance and installation
should be done by qualified personnel in
compliance with local codes.
19.0
As a safety precaution and to avoid non-scheduled
downtimes, replace the heating element if a pronounced hot spot
(area of the element that glows brighter) is visible along its heated
section.
For metal sheathed heaters, after performing
maintenance, and prior to energization, an
insulation resistance check must be performed.
Heater with values less than 1 MΩ Ω Ω Ω Ω should follow
a drying process. Please contact factory for
details on procedure if heater is under 1 MΩ Ω Ω Ω Ω .
www.ccithermal.com
MI148 REV.10 Page 2 of 3
RETAINER
KEEPER
BRACKET
SCREW
QUARTZ TUBE
OR LAMP
CERAMIC ELEMENT HOLDER
POWER
ELECTRICAL
WIRE
TERMINAL
OF QUARTZ HEATER
OPERATION
MAINTENANCE
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