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Unit or Series
General information and Guidelines:
This heater must be properly placed before it is used.
DO NOT tamper with or change the operating of this
heater. All service should be preformed by a authorized
service representative. Only replace components with
King approved replacement parts.
Operation:
1. After the electric heater has been safely located,
thermostat should be turned to LOW or NO HEAT.
Plug unit into grounded outlet, wait 3 to 5 minutes
and check to see that the heater is not operating. If
operating, disconnect power and check for improper
wiring. If not operating then turn thermostats to
highest position and wait 3 to 5 minutes. Check to
see that the
Table 1
Troubleshooting Chart for Electric Heaters
SYMPTOM
PROBLEM
Breaker Trips
1.
2.
3.
Heater not working
1.
2.
3.
Heater Smokes
1.
2.
Room Temperature
1.
does not match
thermostat setting
2.
Room Temperature
1.
swings from too hot
to too cold
OPERATING INSTRUCTIONS
SOLUTION
Short Circuit
1.
Overloaded Circuit
2.
Improper Voltage
3.
No Power
1.
Loose Connections
2.
Defective Limit
3.
Oil on Element
1.
Needs Cleaning
2.
Thermostat affected
1.
by another heat
stat to another location or remove the heat source.
source.
Improper calibration
2.
Defective or low
1.
quality thermostat
ly accurate; an electronic thermostat is best.
SAVE THESE INSTRUCTIONS
heater is operating. Should it not be operating,
disconnect power and check wiring.
2. Allow entire system to operate steadily for 1/2 hour.
This should remove oily residue from manufacturing.
(Some smoking may occur from element).
3. Select the setting for comfort or your job requirement.
A safety limit control is provided to turn off the
4.
heater elements automatically if it is blocked or
otherwise overheats due to an abnormal condition.
DO NOT bypass or remove this safety limiting device
from the electrical circuit. During normal use, this
safety control should not operate. If you find that
this control is operating, make sure the heater is not
being blocked or filter is plugged. If it continues to
cycle the heater elements off, disconnect power to
heater and have it checked and repaired by a
qualified electrician.
Find source of short. Trace heater circuit and verify the heater is wire properly.
Reduce wattage in circuit. Refer to circuit sizing table for maximum wattage.
Verify the heater voltage matches the supply voltage.
Turn Breaker ON, turn thermostat ON, check that the breaker is position
properly on panel bus-bar. A 2-Pole breaker must be connected to both bus-
bars (A&B phase) to produce 240V power.
Tighten wire connections.
By-pass the limit to test. If heater works, replace the limit.
It is normal for the element to burn off some light finishing oil used in the
manufacturing process when first energized. Open windows and allow room
to vent until it stops, usually within a few minutes.
Remove any dust or dirt accumulations.
Sunlight or other heat sources can affect the thermostat. Move the thermo
Remove cover and adjust calibration screw.
Replace with a better quality thermostat. Anticipated thermostats are fair-
3
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