Operation - Master MH-40-GFA User's Manual & Operating Instructions

Propane Supply / Information:
Propane (LP)
This heater is not supplied with a propane cylinder.
Use only an approved propane cylinder.
LP Characteristics
– Flammable, explosive under pressure, heavier
than air and pools in low areas.
– In its natural state, propane has no odor, but
for your safety an odor that smells like rotten
cabbage has been added.
– Contact of propane (LP) gas with the skin can
cause freeze burns.
– Heater is manufactured for use with propane
gas only. DO NOT attempt to convert to any
other gas. Such modifications are dangerous
and will void the warranty.
– When heater is not in use, LP Cylinder must be
turned OFF.
– Be sure that the LP Cylinder is located on a level
and stable surface.
– DO NOT use this heater in a basement or below
ground level. Propane is heavier than air and
will always seek the lowest level. If you suspect
a leak, shut off the valve at the LP Cylinder
immediately.
The Propane (LP) cylinder must also be equipped
with the following:
– A collar to protect the gas valve.
– A shut-off valve terminating a LP cylinder valve
outlet as specified in the American National
Standard for Compressed Gas Cylinder Valve
Outlets and Inlets Connections.
– A safety relief valve having direct
communications with the vapor space of the LP
cylinder.
– The heater must operate on vapor withdrawal
from the operating cylinder.
© 2018 Pinnacle Climate Technologies, Inc.
NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR
WHILE CONNECTED TO A POWER SOURCE

OPERATION

The amount of Propane (LP) used with this heater
varies. Both factors are:
– The amount of gas in the cylinder of LP.
– The temperature of the LP tank and its
surroundings.
Average
Temp
(ºF / ºC)
32º / 0º
20º / -7º
10º / -12º
0º / -18º
-10º / -23º
-20º /
-29º
The table above shows the minimum number of 100 lb.
(45 kg) LP cylinders required in cold weather. Your local LP
dealer will help you select the proper LP supply system.
handling of the LP cylinder could result in a fire
and or an explosion.
– Always keep LP cylinder fastened and upright.
– Avoid tipping the LP cylinder on its side when
connected to a regulator, since this may cause
damage to diaphragm in the regulator.
– Handle valves with care.
– Never connect an unregulated LP cylinder to a
construction heater.
– DO NOT subject LP cylinder to excessive heat.
– Tightly close the gas shutoff valve on the LP
cylinder after each use.
– All fittings must be protected when
disconnected from the LP cylinder.
6
Minimum Number of LP Cylinders
40-GFA 60V-GFA
100 lb. 100 lb.
(45 kg) (45 kg)
cylinder cylinder
1 1
1 1
1 1
1 1
2 2
2 2
CAUTION
Propane Forced Air Heater User's Manual
125V-GFA 150V-GFA
100 lb. 100 lb.
(45 kg) (45 kg)
cylinder cylinder
2 2
2 2
3 3
3 3
Use Larger Use Larger
Tank Tank
Use Larger Use Larger
Tank Tank
Propane is safe to
use when properly
handled. Careless