Operational Information
Heat is created by electric current passing through coiled metal
elements bringing them up to very high temperatures. The
fan then passes room air over the hot elements exchanging
cold air for warm. The air moving over the coils keeps them
from reaching temperatures that are not safe for the normal
operation of the heater. Therefor it is important to keep all
combustible materials and any objects that may be sucked
into the fan blades at a safe distance (please refer to the
specification table for appropriate clearances). Make sure that
the fan blades remain unobstructed at all times. Keep unit clean
and dust free. Do not block unit intake or exhaust at any time.
If damage has occurred please refer to the parts listing in this
manual and contact the manufacturer for a replacement.
WARNING: The electrical circuit must be properly grounded,
failure to do so may result in electric shock or property
damage.
WARNING: Always plug or wire heaters directly into a wall
receptacle or appropriate junction box. Never use with an
extension cord or re-locatable power tap (outlet/power strip).
These Electric forced air heaters are specifically designed to
be permanently installed by hanging from ceiling or overhead
structure. Do not attempt to use them as a portable heater.
Starting Instructions
1. With the heater properly installed and the power supplied to the unit
move the heat selection knob to the setting you want. There are both
high and low settings, along with a fan only option. Refer to Figure 3,
for information about each setting.
2. Turn thermostat to desired setting. Clockwise will increase the set
point, counter clockwise will reduce the setting. An audible click can
be heard when the current temperature in the space is matched on the
dial.
3. The Heating element and fan will remain on until the temperature
setting is reached. The unit will cycle on and off as needed.
Mr. Heater Forced-Air Electric Construction Heater
CONTROL
FAN
OFF
ONLY
HEAT SETTINGS
LOW/HIGH
To Stop Heating
1. Rotate the thermostat knob to the lowest position.
2. Rotate the power switch into the „off‰ position.
Maintenance
WARNING:
Never attempt to service the heater while the unit is hot
or In use. Only qualified service technicians should service
these units.
• Thoroughly inspect the unit prior to use.
• Keep heater clean and free of dust and debris.
• The use of an air compressor can be used to blow out the dust
from the heater case. Be sure to only use moderate air pressure
as to not damage any internal components.
• A soft dry cloth should be used for cleaning of outer shell and
mounting brackets.
• The fan motor is sealed and does not need to be lubricated.
For service :
Please call Toll-Free 800-251-0001 www.mrheater.com
Our office hours are 8:00 AM – 5:00 PM, EST, Monday through
Friday. Please include the model number, date of purchase, and
description of problem in all communication.
4
Operating Instructions and OwnerÊs Manual
THERMOSTAT KNOB