Ventilation; Danger - Master MH-40-GFA User's Manual & Operating Instructions

Lighting Instructions:
Starting the Heater (Ignition
1. Connect the heater to a three prong (grounded)
power source. You must use a three prong (grounded)
extension cord that is at least 6 feet long is a minimum
of 14 AWG rating.
2. Connect heater to a proper LP cylinder.
3. Turn gas control knob CLOCKWISE to off position.
4. Wait five (5) minutes for any gas to clear. Smell for
gas, if you do not smell gas, go to step 5.
5. Turn gas supply ON by turning the LP cylinder valve
COUNTERCLOCKWISE to OPEN.
6. Push in and turn gas control knob
COUNTERCLOCKWISE to 1 position. This will light the
burner. If needed, keep pressing control knob until
the burner lights, and keep pressing and turning from
"O" (OFF) to 1 on Piezo electric spark models (40-
GFA) (See Figure 4).
7. Keep the gas control knob depressed for at least 30
seconds after lighting the burner. After 30 seconds,
release the control knob.
8. If the burner doesn't stay lit, repeat lighting procedures.
Figure 4
40-GFA
Valve Knob
– Risk of indoor air pollution and Carbon
Monoxide Poisoning. Use heater only in well
ventilated areas.
– Refer to Safety Information on pages 2-3
for information about Carbon Monoxide
Poisoning.
– ALWAYS provide a fresh air opening in the
heated space of at least three square feet
(2,800 sq. cm) for each 100,000 BTU / Hr (29
kW). of heater output. Provide a larger opening
if more heaters are being used.
© 2018 Pinnacle Climate Technologies, Inc.
NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR
OPERATION (CONT.)
)
Ignition
OFF
60V-GFA / 125V-GFA /
150V-GFA Valve Knob
WHILE CONNECTED TO A POWER SOURCE
9. When burner stays lit, turn gas control knob
COUNTERCLOCKWISE to desired setting (all models
except 40-GFA).
Shutdown Instructions
To Shut Off the Heater:
1. Turn gas control knob CLOCKWISE to
"O" (OFF) position (See Figure 4).
2. Turn gas supply OFF by turning the LP cylinder valve
CLOCKWISE to close.
3. Disconnect the power cord.
Test Firing the Heater
Test fire your construction heater following the lighting
instructions applicable to the gas control system
employed.
Leak test all gas connections with 50/50 soap and water
solution prior to start-up. Soap bubbles indicate a gas
leak. DO NOT use a match or flame to test for gas leaks.
NOTE: Heater surface temperature must be cold before
initiating service, cleaning or storage.
Ignition

DANGER

DANGER
OFF
adequately ventilated enclosed spaces.

VENTILATION

Minimum Ventilation Opening Needed
40-GFA
1.2 ft.
2
1110 cm
8 Propane Forced Air Heater User's Manual
60V-GFA 125V-GFA
1.8 ft. 3.8 ft.
2
1670 cm 3530 cm
2 2
CARBON MON-
OXIDE POISON-
ING MAY LEAD TO
DEATH!
Not for use in
residential living
areas or in non-
150V-GFA
4.5 ft.
2 2
4180 cm
2 2