Mr. Heater MHU45 Manual De Conversión De Combustible página 4

Section 2 FUEL CONVERSION INSTRUCTIONS
Figure 1
2
WARNING: Explosion Hazard
Turn off the gas supply to the heater
before performing any service or
maintenance.
Failure to follow these instructions will
result in death, injury or property damage.
WARNING: Electrical Shock Hazard
Unplug the electrical cord from the outlet
before performing any service
maintenance.
Failure to follow these instructions will
result in death, injury or property damage.
See Figure 1
The electrode and sensor are not adjustable.
DO NOT change location or position as part of
this conversion kit.
Step 1.
Caution the gas supply shall be shut off prior to disconnecting
the electrical power, before proceeding with the conversion.
Step 2.
Remove and discard cap from gas valve/regulator with a flat blade
screw driver by turning the cap counter-clockwise. Remove the
regulator adjustment screw in the same manner. Do not discard
the screw after removing. Remove and discard the spring that is
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E-4
Compact Unit Heater
located under the adjustment screw. Remove the spring kit from the
conversion kit, and compare the part number of the kit to the parts
you are converting, install the new spring with the adjustment screw
about (5) full rotations in the clockwise direction. Place conversion
label supplied with the spring kit on the valve near the adjustment
screw cover.
Step 3.
After converting the valve, remove the gas supply line to the unit
and remove the manifold by turning the four screws in a counter-
clockwise direction. This will allow the valve and manifold to pull
straight out from the burners.
Step 4.
Remove the three orifices from the manifold with a ½" open end
wrench. Turn them counter-clockwise to remove. Take the new
number stamped on the side of the orifice matches the number for
the kit you are using. If it does not, immediately contact Mr. Heater,
manifold, using caution not to cross thread.
Step 5.
Replace the manifold in the unit and reconnect incoming gas supply
line. Check all connections for leaks with soapy water.
Step 6.
port. See Figure 2. Pressure gauges are not reliable and may give a
false reading.
Fuel Conversion Manual
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