Operation and Maintenance
How to operate your heater
1. Once installation is complete and power
has been restored turn the thermostat knob
fully clockwise.
2. When the room reaches your comfort level,
turn the thermostat knob counterclockwise
until the heater turns off. The heater will
automatically cycle around this preset
temperature.
3. To reduce the room temperature, turn the
knob counterclockwise. To increase the
room temperature, turn the knob clockwise.
Maintenance
As needed, or every six months minimum.
1.
WARNING! Before removing grill, turn
the electrical power off at the electrical
panel board (circuit breaker or fuse box).
Lock or tag the panel board door to prevent
someone from accidentally turning the power
on while you are working on the heater.
Failure to do so could result in serious
electrical shock, burns, or possible death.
2. It is important that you verify power has
been turned off and no power is going to the
heater before proceeding. Circuit breakers
are often not marked correctly and turning
the wrong breaker off could mean electricity
is flowing to the heater, even if the heater
does not appear to be working. If you are
uncomfortable working with electrical
appliances, unable to follow these
guidelines, or do not have the necessary
equipment, consult a qualified electrician.
3. Once you verify the power has been turned
off correctly, proceed to the next step.
4. Remove thermostat knob, if equipped.
Remove the screws and take off grill.
5. Wash grill with hot, soapy water and dry
immediately.
6. Remove the screws securing the heater
assembly to the opening, then pull heater
out of opening.
7. R emove the four screws securing the lid to
the top of the heater assembly, remove lid.
8. Thoroughly vacuum accumulated dust, lint
or other debris from blower wheel and heater
outlet. Important: Be careful not to damage
the blower wheel, and do not allow the
blower wheel to spin freely when vacuuming.
9. Install lid and slide heater assembly back
into opening. Secure heater assembly to
opening, then install grill and thermostat knob
(if equipped).
10. Restore power to heater at circuit breaker
panel or fuse box, then test heater operation
by turning thermostat on and/or adjusting
to a higher temperature.
Part Two
About the Manual Reset Temperature
Limit Control
The heater is protected by a temperature-limit
control. The manual reset temperature limit
control is designed to open the heater circuit
when excessive operating temperatures are
detected. The problem must be assessed and
the limit must be reset to resume operation.
Resetting the Manual Reset Temperature
Limit Control
If the manual reset limit control has opened
the heater circuit due to excessive operating
temperatures, the heater will not work until
the manual reset limit button is pressed. After
allowing the unit to cool for at least 15 minutes
and resolving the problem causing the limit
to trip (typically heater is blocked or needs
cleaning), use a narrow object such as a
ball-point pen to access the manual reset
button through the heater grill. Press FIRMLY,
and be sure to listen and feel for a click,
indicating it has been reset.
Wiring Diagram
With inbuilt single pole thermostat
UC
WARNING
Risk of Electrical
Shock. Connect
grounding lead to
grounding screw
provided. Keep all
foreign objects out
of heater.
WARNING
Risk of Fire.
Heater must be
kept clear of all
obstructions: a
minimum of 3 feet
in front; 6 inches
on both sides.
Heater must be
kept clean of lint,
dirt and debris.
WARNING
Turn the electrical
power off at the
electrical panel
board (circuit
breaker or fuse
box) and lock or
tag the panel board
door to prevent
someone from
turning on power
while you are
working on the
heater. Failure to
do so could result
in serious
electrical shock,
burns, or possible
death.
3