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NEVER LEAVE HEATER UNATTENDED WHILE CONNECTED TO A POWER SOURCE

© 2017, Pinnacle Climate Technologies, Inc. 

Electric Garage Heater User’s Manual

Operation

1.  Position the fan heater so that it stands upright on 

a firm, level surface and at a safe distance from 

wet environments and flammable objects.

2.  Connect the fan heater to the proper electrical 

power. See Grounding instructions 

(Page 8 and Figure 2)

3.  Set the thermostat dial to the maximum 

temperature. 

4.  The fan heater will switch on when the function 

selector dial is set to one of the three power 

settings.

5.  Once the room reaches the desired temperature, 

turn the thermostat dial back until heating element 

turns off.

Automatic Overheat Safety Control

 

– This heater is equipped with safety internal 

heat limiting thermostat and overheat protection 

circuit. When a potential overheat temperature is 

reached, the system will automatically shut the 

heater off at 158 ºF 

 (70 ºC).

Caution Light

 

– The Caution Light will illuminate when the 

Overheat Safety Control is activated. The heating 

element will be shut off until the unit has cooled to 

a safe level. 

 

– The fan will continue to operate. 

 

– Once the heater has reached a safe level (131 ºF 

/ 55 ºc), the heater will turn back on automatically.

Thermostat Instructions

 

– At first, set the thermostat to “+” and let the heater 

operate with full power input. When the room 

temperature reaches the required value, turn the 

thermostat to the left until it switches off. 

 

– The thermostat will then switch on and off 

automatically to control the room temperature 

according to the preset value and keep the room 

temperature constant.

 

– When using the heater for the first time, you may 

notice a slight emission of smoke. This is quite 

normal and it stops after a short time. The heating 

element is made of steel and was coated with 

a layer of protective oil during production. The 

smoke is caused by the leftover oil as it is heated.

Grounding Instructions

 

– This heater is for use on 240 (or 208) volts. The 

cord has a plug as shown in figure 2 (below). No 

adapter is available for this blade configuration, 

and none should be used. The type outlet is a 

240 (or 208) volt grounding outlet. When properly 

installed, it provides a ground connection through 

the cord to the heater to protect the operator from 

electric shock.

 

– Be sure that the electrical receptacle is of the 

configuration and capacity appropriate for the 

heater.

Cleaning and Maintenance

 

– Before cleaning the appliance, disconnect it from 

the outlet and let it cool down.

 

– In order to protect the enclosure, don’t splash 

water onto the heater, and never use a solvent 

like gasoline, isoamyl acetate, toluene, etc. to 

clean the heater

 

– The enclosure is easy to get dirty. Wipe it often 

with a soft sponge. For very dirty parts, wipe 

with a sponge dipped in < 122°F water and mild 

detergent, then dry the heater enclosure with a 

clean cloth. Be careful not to let the water enter 

the inside of the appliance.

Setting

Function

Unit is Off
Fan Runs - No heating
Fan Runs - Half Power Heating
Fan Runs - Full Power Heating

NOTE

: The fan will run continuously while the 

heater is operating. 

5

 Figure 2

NEMA L6-20P

Summary of Contents for MASTER MH-03-240-GH

Page 1: ...not let bare skin touch hot surfaces If provided use handles when moving the heater RISK OF ELECTRIC SHOCK OR INJURY Do not run cord under carpeting Do not cover cord with throw rugs runners or simil...

Page 2: ...y or near children or invalids Do not use outdoors This heater is not intended for use in bathrooms laundry areas and similar indoor locations Never locate heater where it may fall into a bathtub or o...

Page 3: ...eat Settings 1 2 Specifications subject to change without notice Features MH 03 240 GH MH 05 240 GH 2 Figure 1 Adjustment Knob Front Guard Fan Heater Coil Swivel Bracket Thermostat Knob Function Selec...

Page 4: ...In The Box 66 mm Screws 4 8 mm washers 2 5 mm Washers 4 3 Lock Washers 2 Adjustment Knob 2 Swivel Bracket Troubleshooting Locating Your Serial Number Your serial number can be found on the heater s r...

Page 5: ...attach 2 final screws Two 2 screws must be attached to a wood ceiling joist min 1 5 If 2 remaining screws cannot be attached to a wood ceiling joist then moly toggle bolts should be used for remaining...

Page 6: ...stat will then switch on and off automatically to control the room temperature according to the preset value and keep the room temperature constant When using the heater for the first time you may not...

Page 7: ...1 Heater is operating correctly Fan speed stays the same when changing settings 1 Fan speed stays constant Setting changes amount of heat output only 1 Heater is operating correctly Heating element d...

Page 8: ...ormal operating condition or not defective the item will be returned freight collect This Limited Warranty is in lieu of all other express warranties Pinnacle Climate Technologies Inc disclaims all wa...

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