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F.
START-UP
1.
For heaters with a tamper-proof thermostat, to set
temperature, disconnect the power and remove the
socket head cap screw. Set the thermostat to the
desired room temperature with a screw driver and
replace cap screw.
2.
For heaters with an externally adjustable thermostat,
set thermostat to desired temperature by adjusting
the dial.
NOTE: The thermostat temperature range is 0ºF – 100ºF
(-18 ºC– 40ºC) with an operating differential of
5ºF – 7ºF (3 ºC– 4ºC).
NOTE: High ambient thermostat temperature range is
59ºF–158ºF (15ºC–70ºC) with an operating differential
of 5ºF – 7ºF (3 ºC– 4ºC). (Available on single phase
heaters only.)
3.
Install the terminal box cover and tighten securely.
G.
MAINTENANCE
1.
Periodically inspect the heater installation to ensure
that all connections, fittings, plugs, screws, covers, etc.
are tight and free of corrosion.
2.
Check that the reflector baffles (if required) have not
moved upwards or downwards in relation to the heat
sink.
3.
Check the extrusions of the heater for dust and
debris. A blast of compressed air is recommended
for cleaning the heat sink. If air is not available,
disconnect the power supply to the heater and when
cool, wipe it down with a damp cloth or soft brush.
Remove wire guards prior to cleaning.
WARNING. Disconnect power from the heater
before performing any maintenance. Failure to do
so can result in property damage, injury, or death.
WARNING
CAUTION. Do not use water to clean heater.
CAUTION
H.
SPARE PARTS
Table 5 – Replacement thermostats
Voltage
One Phase Heaters
Three Phase Heaters
Table 6 – Replacement thermostats (High Ambient)
Voltage
One Phase Heaters
Thermostat Part No.
XTKW04481
XTKW04483
Thermostat Part No.
XTKW07481
4.
Check to ensure that all plugs, screws, and covers are
securely in place.
5.
Check associated electrical equipment.
6.
Check that all wall/floor mounting bracket
connections are tight.
7.
Turn on the supply power.
WARNING. To prevent unsafe operation of the
heater do not exceed the maximum allowable
ambient operating temperature of 104ºF (40ºC).
WARNING
WARNING. To prevent unsafe operation of the
heater do not exceed the maximum allowable
ambient operating temperature of 158ºF (70ºC) on
WARNING
high ambient models.
4.
The heat sink is anodized or painted black to ensure
that the maximum area code temperature is not
exceeded. After an extended period of use or in
extremely harsh environments the anodization/paint
may wear away leaving bare surfaces. For continued
safe operation, these surfaces must be repainted.
When repainting use only black high temperature
resistant paint.
5.
Except for thermostat replacement, field repair of the
heater shall not be normally undertaken. In the event
that the heater must be repaired, contact the factory
for a return authorization number.
9
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