KING ELECTRICAL MFG. CO. · 9131 10TH AVENUE SOUTH · SEATTLE, WA 98108 · TEL: 206.762.0400 · FAX: 206.763.7738
CB SERIES
BASEBOARD HEATER
INSTALLATION GUIDE
ATTENTION: Before attempting to install your heater, verify that the power
supply wires are the same voltage as the heater you are installing. The best
way to check for proper voltage is by using a voltmeter, testing between
supply line 1 and 2. 240 and 120 Volt heaters are not interchangeable.
Connecting a 240 Volt heater to a 120 Volt circuit will reduce the wattage
75% making the heater feel barely warm. Connecting a 120 Volt heater to
a 240 Volt circuit will destroy the heater, could cause fi re damage, personal
injury or death, and, voids all warranties.
WARNING: Turn off power source to the heater before attempting installation, maintenance or repairs. Lock, tape or tag circuit breaker or fuse so
that power cannot be turned on by accident. Failure to do so could result in
serious electrical shock, burns or possible death.
PLACEMENT: When possible baseboard heaters should be placed on an
outside perimeter wall under a window. This is due to the fact that the outside wall is usually the spot of greatest heat loss. A baseboard heater may
sit directly on any fl oor surface including carpet. Do not allow carpet to block
air intake at bottom.
GENERAL SAFETY INFORMATION: Keep electrical cords, any bulky furniture or other household items that could restrict airfl ow away from heater.
Refer to clearance diagram for drapes. Do not install heater below an electrical outlet or against vinyl wallpaper, paperboard or low density fi berboard
surfaces. Do not recess mount heater. Do not mount heater vertically. Do not
store fl ammable liquids in vicinity of the heater. Installation must comply with
applicable national and local electrical codes. Protect electrical supply wire
from nicks, sharp objects, oil, grease or other chemicals that could damage
the insulation.
INSTALLATION INSTRUCTIONS:
1. Make sure heater is positioned on the wall with the “Bottom” label facing
the fl oor. Mounting upside down could be a hazard.
2. Remove junction box cover from left or right end. The heater can be
wired from either end.
3. Remove knockout and pull supply wires through. Use a cable fi tting to
secure the power wires.
4. Locate wall studs and secure heater to wall with a nail or screw. Use the
mounting dimples in the back can to position the fastener. The dimples
will prevent the fastener from slipping when applying pressure to pierce
the metal back can. You do not have to remove the cover or refl ector to
mount the heater.
5. Connect electrical wires and groundwire to the heater per the appropri ate wiring diagram on following pages.
CLEARANCE MINIMUMS FOR DRAPES
CEILING
1½" between drapes
and ceiling
16" to 24"
from furniture
4"
WALL
1½"
1½" above carpet
FLOOR
CIRCUIT SIZING TABLE
AMPS VOLTS WATTS WIRE SIZE
12
16
16
12
24
120
120
240
240
240
1,440
1,920
2,880
3,840
5,700
#14/2
#12/2
#14/2
#12/2
#10/2
CIRCUIT PROTECTION
15 Amp - 1 Pole
20 Amp - 1 Pole
15 Amp - 2 Pole
20 Amp - 2 Pole
30 Amp - 2 Pole
CB.indd : 2/09
WIRING INSTRUCTIONS FOR SINGLE POLE THERMOSTATS
SUPPLY WIRES
HEATER WIRES
Cut one wire to Apply Power to
LEFT SIDE
Single Pole
K601
HE-1
HET-1
S22
Cut one wire to Apply Power to
RIGHT SIDE
WIRE COLOR CHART
BLACK WIRE
RED WIRE
BARE GROUNDWIRE
WHITE WIRE
Connection Diagram for Wall Mounted Thermostat
1. Red thermostat wire to black power supply wire.
2. Black thermostat wire to black heater wire.
3. White power supply wire to white heater wire.
4. Connect all bare groundwires together.
Instructions for Left or Right Side Wiring Connection
1. Caution: Do not cut both factory splice caps
on left side! You need only two wires for power
connection.
2. Heater can be wired from either side - wire one
side only.
3. Cut only one factory splice cap or loop wire as
shown.
4. This leaves two wires for power connection.
Connection Diagram when using a Wall Thermostat
1. Connect power supply wires from wall
thermostat as shown.
2. Black and white supply wires can be connected
to the heater in reverse order. For simplicity the
most common method is shown.
Power Supply Connection
LEFT SIDE
Built-in (BKT-1) Diagram
LEFT SIDE
Power Supply Connection
RIGHT SIDE
Built-in (BKT-1) Diagram
RIGHT SIDE
3. Connect bare groundwire to green groundwire.
BKT-1
Connection Diagram for BKT-1 Thermostat
1. Mount thermostat per instructions. 4. White supply wire to heater.
2. Red thermostat wire to black supply wire. 5. Bare groundwire to green groundwire.
3. Black thermostat wire to heater.
KING ELECTRICAL MFG. CO. · 9131 10TH AVENUE SOUTH · SEATTLE, WA 98108 · TEL: 206.762.0400 · FAX: 206.763.7738
CB.indd : 2/09
WIRING INSTRUCTIONS FOR DOUBLE POLE THERMOSTATS
WIRE COLOR CHART
SUPPLY WIRES
HEATER WIRES
Cut one wire to Apply Power to
LEFT SIDE
Double Pole
D22
K602
HE-2
HET-2
Cut one wire to Apply Power to
RIGHT SIDE
Connection Diagram for Wall Mounted Thermostat
1. Connect the two red thermostat wires to the black
and white power supply wires.
2. Connect the two black thermostat wires to the
black and white heater wires.
3. Connect all the bare groundwires together.
Instructions for Left or Right Side Wiring Connection
1. Caution: Do not cut both factory splice caps
on left side! You need only two wires for power
connection.
2. Heater can be wired from either side - wire one
side only.
3. Cut only one factory splice cap or loop wire as
shown.
4. This leaves two wires for power connection.
BLACK WIRE
RED WIRE
BARE GROUNDWIRE
WHITE WIRE
Connection Diagram when using a Wall Thermostat
1. Connect power supply wires from wall thermo stat as shown.
2. Black and white supply wires can be connected
to the heater in reverse order. For simplicity the
most common method is shown.
Supply Power Connection
LEFT SIDE
Built-in (BKT-2) Diagram
LEFT SIDE
Power Supply Connection
RIGHT SIDE
Built-in (BKT-2) Diagram
RIGHT SIDE
3. Connect bare groundwire to green groundwire.
BKT-2
Connection Diagram for BKT-2 Thermostat
1. Mount thermostat per instructions. 3. Connect the two black thermostat wires to the two heater wires.
2. Connect the two red thermostat wires to the 4. Bare groundwire to green groundwire.
black and white supply wires.
KING ELECTRICAL MFG. CO. · 9131 10TH AVENUE SOUTH · SEATTLE, WA 98108 · TEL: 206.762.0400 · FAX: 206.763.7738
CB.indd : 2/09
COMMONLY ASKED QUESTIONS
Q. Will the room heat up faster with the thermostat turned up to 90
degrees?
A. No, the heater is always on full wattage when the thermostat is below
the pre-set temperature. The thermostat shuts off when the pre-set
temperature is reached, therefore set the thermostat to the desired
comfort level, not above.
Q. Will the electricity bill be lower using 240V heaters?
A. No, electricity is billed by kilowatt hours, voltage makes no difference.
Typically, baseboard heaters are 240V because of wiring capacity, i.e.
240V heaters draw less Amps than 120V heaters.
Q. What is the difference between a two pole and a single pole
thermostat?
A. A 1-P thermostat has no positive off position. That means when the
knob is turned all the way to the left (counterclockwise) it has a low
TROUBLESHOOTING CHART FOR BASEBOARD HEATERS
SYMPTOM PROBLEM SOLUTION
1. Find source of short. Trace heater circuit and verify the heater is wired
properly.
2. Reduce wattage in circuit. Refer to circuit sizing table for maximum
wattage.
3. Verify the heater voltage matches the supply voltage.
1. Turn breaker on. Turn thermostat on. Check that the breaker is posi
tioned 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.
Breaker trips
Heater not working
1. Short circuit
2. Overloaded circuit
3. Improper voltage
1. No power
2. Loose connections
3. Defective limit
setting. A 2-P thermostat breaks an additional line when the knob is
turned to the off position. The heater will not turn on with the knob in the
off position.
Q. Can the baseboard heater be painted?
A. Yes. A semi or gloss latex enamel will hold up to the heat but will not
last as long as the original baked enamel fi nish.
Q. How much heat do I need?
A. A general rule of thumb is 10 Watts for every square foot of fl oor space.
For example: A 10' x 10' room is 100 ft² (10 w/ft² x 100 ft²) and would
require 1000 Watts of heat. If you live in a cold climate or if the room
has a ceiling height above 8 feet use up to 15 w/ft².
1. It is normal for the element to burn off some light fi nishing oil used in
the manufacturing process when fi rst energized. Open windows and
allow room to vent until it stops, usually within a few minutes.
Heater smokes
1. Oil on element
2. Needs cleaning
2. Remove any dust or dirt accumulation.
Room temperature
does not match
thermostat setting
Room temperature
swings from too
hot to too cold
1. Thermostat affected
by another heat source
2. Improper calibration
1. Defective or low quality
thermostat
1. Sunlight or other heat sources can affect the thermostat. Move thermo
stat to another location or remove the heat source.
2. Remove cover and adjust calibration screw.
1. Replace with a better quality thermostat. Anticipated thermostats are
fairly accurate; an electronic thermostat is the best.
Maintenance: The high quality and superior design of this heater will provide years of trouble-free performance. Each year the heater should
be checked and cleaned for lint and dust accumulation. King recommends using a soft bristled brush or a can of compressed air to knock off
contaminates, then vacuum out the debris.
Warranty: King Electrical Mfg. Co. will repair or replace without charge to the original owner any baseboard heater found to be defective or
malfunctioning for 5 years from the date of purchase. If the product becomes defective within the warranty period contact King at 800-6035464 for instructions on how to repair or replace the heater. Do not return the heater to the store. Products returned without authorization will
be refused.
KING ELECTRICAL MFG. CO. · 9131 10TH AVENUE SOUTH · SEATTLE, WA 98108 · TEL: 206.762.0400 · FAX: 206.763.7738
CB.indd : 2/09
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