King Electric Model PKB - Manual (Page 3)

Table 3
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 completely
placed, all thermostats should be turned to LOW or
NO HEAT. Plug unit into grounded outlet, no
extension cords, wait 3 to 5 minutes and check to
see that the heaters are not operating. If operating,
disconnect power and check for improper wiring. If
none are operating then turn thermostats to highest
position and wait 3 to 5 minutes. Check to see that
OPERATING INSTRUCTIONS
Unit or Series
3
SAVE THESE INSTRUCTIONS
all heaters are operating. Should any 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).
3. Select the setting for comfort on all thermostats.
4. A safety limit control is provided to turn off the
heater automatically if it is blocked or otherwise
overheats due to an abnormal condition. DO NOT
bypass or remove this safety 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. If it continues to cycle the heater
off, disconnect power to heater and have it checked
and repaired by a qualified electrician.
Troubleshooting Chart for Electric Heaters
SYMPTOM PROBLEM SOLUTION
Breaker Trips 1. Short Circuit
2. Overloaded Circuit
3. Improper Voltage 1. Find source of short. Trace heater circuit and verify the heater is wire properly.
2. Reduce wattage in circuit. Refer to circuit sizing table for maximum wattage.
3. Verify the heater voltage matches the supply voltage.
Heater not working 1. No Power
2. Loose Connections
3. Defective Limit
1. 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.
2. Tighten wire connections.
3. By-pass the limit to test. If heater works, replace the limit.
Heater Smokes 1. Oil on Element
2. Needs Cleaning 1. 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.
2. Remove any dust or dirt accumulations.
Room Temperature
does not match
thermostat setting 1. Thermostat affected
by another heat
source.
2. Improper calibration
1. Sunlight or other heat sources can affect the thermostat. Move the thermo
stat to another location or remove the heat source.
2. Remove cover and adjust calibration screw.
Room Temperature
swings from too hot
to too cold 1. Defective or low
quality thermostat
1. Replace with a better quality thermostat. Anticipated thermostats are fair-
ly accurate; an electronic thermostat is best.