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

NEVER LEAVE HEATER UNATTENDED
WHILE BURNING, CONNECTED TO A
POWER SOURCE, OR WHILE
CONNECTED TO A FUEL SOURCE
General Safety Information (Continued)
- This heater is shipped from the factory for use with LP
(propane) gas only. Do not convert to any other gas. Installation
must conform to local codes, or in their absence, with the stan-
dard for the Storage and Handling of Liquefied Petroleum Gases
ANSI/NFPA 58.
- Use only the regulator and hose assembly provided with this
heater. Inspect the regulator/hose assembly prior to each use of
the heater. If there is excessive abrasion or wear, or if the hose
is cut, replace it with the proper assembly shown in the parts
list, prior to using the heater.
- Gas supply connections should be checked by using a 50/50
soap and water solution. Never use a flame to check for gas
leaks.
- Locate LP cylinder at least 6 feet from the heater, and do not
direct heater discharge towards the LP cylinder unless it is at
least 20 feet from the heater.
- The electrical connection and grounding must comply with the
National Electrical Code, ANSI/NFPA 70. Use only a properly
grounded three (3) prong receptacle.
- Do not restrict air inlet or outlet areas of the heater.

Operation

REFILLING THE LP CYLINDER
ALL NEW LP CYLINDERS MUST BE PURGED BEFORE THE
FIRST FILLING.
Purging and filling of LP cylinders must be
WARNING
performed by personnel who have been
thoroughly trained in accepted LP gas industry procedures.
Failure to follow these instructions may result in ex plosion,
fire, severe personal injury or death.
Average
MH-40 MH-60V
Temp.( o F)
20 or 100lb. 20 or 100lb.
cylinder
32 °
1
20 °
1
10 °
1
0 °
1
-10 °
2
-20 °
2
Table 2: The table above shows the minimum number of 100 lb
LP cylinders required in cold weather. Your local LP dealer will
help you select the proper LP supply system.
Page 4
MH-125V MH-150V
cylinder 100lb. cylinder 100lb. cylinder
1 2
1 2
1 3
1 3
Use larger Use larger
2
tank
Use larger Use larger
2
tank
Pinnacle Products International, Inc. Propane Forced Air User's Manual
- Turn heater gas valve knob and LP cylinder valve to OFF posi-
tion.
- LP cylinder valve equipped with old style fitting has LEFT-
HANDED THREADS. Turn fitting CLOCKWISE to loosen.
Protect this fitting when disconnected from LP cylinder.
- Have your LP cylinder filled by your local Propane gas supplier.
- Some LP cylinders have a bleed-off valve. This valve should be
inspected for leaks after each filling of the LP cylinder. Turn the
valve clockwise to close.
- Fasten full Propane tank and connect proper fitting to LP cylin-
der valve by turning COUNTERCLOCKWISE.
- With heater gas valve knob still in OFF position, turn ON LP
cylinder valve and check for leaks with soap solution.
CAUTION
could result in a fire and/or an explosion. Therefore:
- Always keep LP cylinder securely fastened and in an upright
position.
- Avoid tipping the LP cylinder on its side when connected to a
regulator, since this may cause damage to the dia phragm 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.
- Never store an LP cylinder inside a building or in the vicinity of
any gas burning appliance.
CAUTION
enclosed area.
- Do not restrict inlet or outlet of heater. Heater is never to be
2
used with ductwork.
2
3
3
tank
tank
Figure 2 Connecting Hose / Regulator to LP Cylinder
Propane
Forced Air Heaters
Propane is safe to use when properly han-
dled. Careless handling of the LP cylinder
The disconnected tank must never be
stored in a building, garage or any other