electrical mfg. company
9131 - 10th Avenue South Seattle Washington 98108
INSTALLATION & MAINTENANCE MANUAL
SAVE THESE INSTRUCTIONS
for KB SERIES UNIT HEATERS
WARNING
THIS UNIT IS MANUFACTURED TO OPERATE ON A SPECIFIC CONTROL VOLTAGE IN COMPLIANCE WITH YOUR
ORDER. STANDARD CONTROL VOLTAGES ARE 208/240/277 FOR 208/240/277 VOLT HEATERS. 24 VOLT
CONTROL IS STANDARD ON 4 80 VOLT HEATERS. 120 VOLT CONTACTOR COILS ARE AVAI LABL E FOR EXTERNAL
120 VOLT CONTROL SUPPLY. 208/240 OR 277 VOLT HEATERS MAY ALSO BE ORDERED WITH 24 VOLT
CONTROL - KBLV-1 (WHICH INCLUDES TRANSFORMER AND CONTACTOR) OR KBLV-2 (WHICH INCLUDES
TRANSFORMER AND WIRING FOR HEATERS THAT ALREADY HAVE CONTACTORS AS STANDARD EQUIPMENT). IT
IS IMPORTANT THAT YOU VERIFY YOUR POWER SUPPLY VOLTAGE WITH THE HEATER THAT YOU HAVE CHOSEN.
IMPROPER INSTALLATION OR FAILURE TO FOLLOW THE PROCEDURES AS OUTLINED IN THIS MANUAL CAN RESULT
IN SERIOUS ELECTRICAL SHOCK OR DEATH. DISCONNECT ALL POWER FROM THE HEATER AT THE MAIN SERVICE
PANEL BEFORE ATTEMPTING TO INSTALL OR SERVICE THIS UNIT. ALL ELECTRICAL WIRING MUST CONFORM TO
LOCAL ELECTRICAL CODES. HEATER CIRCUIT MUST BE PROTECTED WITH PROPER FUSES.
Congratulations on the purchase of your new KING ELECTRICAL UNIT HEATER. Your
new heater is made with the highest standards in electrical design and quality components
to ensure your satisfaction in durability and performance. The steel fin tube element which
has a 5 year warranty is backed by a heavyduty fan directing a strong flow of warm air to any
desired area through adjustable louvers. The rugged, totally enclosed, service-free motor
is combined with our fan design to maintain the correct relationship of air volume to final air
temperature. The quick access panel allows easy connections in the wiring compartment.
The universal bracket will allow ceiling or wall installation to fit your particular application.
KB.indd : 10/08
Location of Heater
The heater should be installed out of the reach of
persons. The direction of air flow should not be
restricted by machinery, beams, etc., and the air
flow should wipe exposed walls rather than blowing
directly at them. When more than one heater is used
in an area the heaters should be arranged so that
the air discharge of each heater supports the air flow
of the others to provide best circulation of warm air.
(see air flow chart)
Unpack & Inspect Your New Heater
Remove heater from the box and inspect it for any
damage. Verify you have received the mounting
bracket or thermostat if needed. (optional)
Mounting Height
Tools Needed
You will need the following tools to install your unit
heater:
• Screwdriver - (Phillips head & slotted)
• Pliers
• Electric Drill
• Wire Cutters
• Adjustable Wrench
Hardware Needed
You will also need the following hardware, which
can be purchased from your local hardware store or
electrical supply house:
• adequate gauge and length of wire for your applica tion
• proper size fuses or breakers to handle amperage
• proper wire connectors for your application
• fasteners appropriate for application that are strong
enough to hold unit
For certain applications conduit may be required.
Check local electrical codes. Also, if you run the wiring in conduit and wish to be able to turn the heater,
be sure to purchase enough flexible conduit to allow
the heater to be turned.
When the airflow of the heater is directed vertically or
horizontally the minimum mounting height is 6 feet.
Mounting heights depend upon building utilization and
heater kW capacity.
Distance From Walls
Be sure to maintain 6" minimum clearance to walls
and ceilings.
Mounting Bracket & Heater
Locate a stud in ceiling or wall and securely fasten
bracket to supporting surface with 3 1-1/4" screws.
Attach heater to bracket with 3/8" x 1" bolt & lock washer
supplied with bracket. After desired air discharge position has been determined, tighten bolt so the heater
will not pivot.
KB.indd : 10/08