Caloritech OKA Series, Installation & Operation Instructions

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C. OPERATION
WARNING
WARNING. For metal sheathed heaters, prior to
operation an insulation resistance check must be
performed. Heater with values less than 1 M
Ω
should
follow a drying process. Please contact factory for
details on procedure if heater is under 1 M
Ω
.
1. 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.
2. 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.
CCI Thermal Technologies Inc. 1 Hunter Valley Road, Orillia, ON L3V 6H2 Tel. (705) 325-3473 Fax (705) 325-2106
www.ccithermal.com
MI430 REV.0 Page 2 of 3
10.0 Two sliding mounting pads are provided with each heater.
The mounting pads have a ¼”-20 tapped hole which can be utilized to
attach the heater to a suitable non-combustible support positioned as
in paragraph 7.0.
OPERATION
For metal sheathed heaters, prior to
operation an insulation resistance
check must be performed. Heater with
values less than 1 M
Ω Ω Ω Ω Ω
should follow a
drying process. Please contact factory
for details on procedure if heater is
under 1 M
Ω Ω Ω Ω Ω
.
15.0 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.
16.0 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.
FIG. 3 – TYPICAL WIRING ATTACHMENT
OF QUARTZ HEATER
ELEMENT LEAD WIRE
TERMINATE WITH VERY
LITTLE SLACK
QUARTZ TUBE
OR LAMP
ELECTRICAL
TERMINAL
POWER
WIRE
RETAINER
BRACKET
KEEPER
SCREW
CERAMIC ELEMENT HOLDER
11.0 The connection boxes at the ends of the heater each have a
volume of 12 in³(196 cm³).
12.0 Heater is provided with 15” long pig tail lead wires suitable for
200°C that must be terminated in a remote junction box. Supply
connectors into the remote junction box must be suitable for
194°F(90°C), or, alternately the heater may be wired with 200°C supply
wire. The ground wire from the supply shall be connected to the
grounding connection located in the box at one end of the heater.
13.0 To facilitate wiring, a ½” NPT tapped hole is provided at each
end of the heater extrusion. A duplex conduit connector or T type
junction box attached to either mounting hole will simplify wiring of
single or multiple units. For type R heaters, which have both terminals
at one end in a moisture resistant housing, use rigid conduit to ensure
moisture protection.
14.0 Follow this procedure and Fig. 3 when installing the quartz
tube or lamp:
14.1 Disconnect power at source.
14.2 Remove the terminal covers at each end of the heater.
14.3 Remove the keeper screw on one retainer bracket and slide
the ceramic element holder aside.
14.4 Feed the element lead wire through the hole in the ceramic
holder at the fixed end first. Slide the ceramic holder removed in 14.3
over the element so that the element is captured in both ceramic
holders and then reinstall the keeper screw.
14.5 Loosen the electrical terminal nut on the ceramic blocks to
permit connection of the power and lead wires.
14.6 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.
14.7 Connect the power wires to the electrical terminals and install
terminal covers.
14.8 Before energizing, wipe the quartz sheath and reflector with
a cloth or paper towel dampened with alcohol.
MAINTENANCE
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.
17.0 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 M
Ω Ω
Ω Ω
Ω
should follow a
drying process. Please contact factory
for details on procedure if heater is
under 1 M
Ω Ω Ω Ω Ω .
5 cm
[2”]
4.4 cm
[1¾”]
SLIDING MOUNTING PAD
WITH ¼”-20 TAPPED HOLE
FIG. 2 – TYPICAL HEATER ATTACHMENT
Figure 5 – Typical wiring attachment of quartz heater
D. MAINTENANCE
WARNING
WARNING. 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 and
rules of the jurisdiction of installation.
1. 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.
WARNING
WARNING. For metal sheathed heaters, prior to
operation an insulation resistance check must be
performed. Heater with values less than 1 M
Ω should
follow a drying process. Please contact factory for
details on procedure if heater is under 1 M
Ω .
2. Reflectors should be visually inspected for accumulation
of dust, and cleaned as necessary using a mild soap
and water solution. Take care to ensure that no water or
moisture is allowed to contact the ends of the element
sheath or wiring connections.