Operating Precautions; Safety Precations - Mr. Heater MH400FAVT Operating Instructions And Owner's Manual

OPERATING PRECAUTIONS

This is a propane, direct-fired, forced air heater. Its intended
use is primarily temporary heating of buildings under
construction, alteration or repair.
Propane is heavier than air. If propane leaks from a
connection or fitting, it sinks to the floor, collecting there
with the surrounding air, forming a potentially explosive
mixture. Obviously, propane leaks should be avoided, so set
up the propane supply with utmost care. Read enclosed
Odor Fade and Propane Sheet for additional information
about detecting propane leaks. Leak check new connections
or reconnections with a soap and water solution and follow
all connection instructions herein. Also, ask your propane
dealer for advice on the propane application and supply
installation and ask him to check it if there are any
questions.
This heater was designed and certified for use as a
construction heater in accordance with ANSI Standard
Z83.7/CGA 2.14-2000. Check with your local fire safety
authority if you have any questions about your applications.
Other standards govern the use of fuel gases and heat
producing products in specific applications. Your local
authority can advise you about these.
Direct-Fired means that all of the combustion products
enter the heated space. Even though this heater operates
very close to 100 percent combustion efficiency, it still
produces small amounts of carbon monoxide. Carbon
monoxide (called CO) is toxic. We can tolerate small
amounts but not a lot. CO can build up in a heated space
and failure to provide adequate ventilation could result in
death.
The symptoms of inadequate ventilation are:
• headache
• dizziness
• burning eyes and nose
• nausea
• dry mouth or sore throat
So, be sure to follow advice about ventilation in these
operating instructions.
Forced Air means that a blower or fan pushes the air
through the heater. Proper combustion depends upon this
air flow; therefore, the heater must not be revised,
modified or operated with parts removed or missing.
Likewise, safety systems must not be circumvented or
modified in order to operate the heater.
When the heater is to be operated in the presence of other
people the user is responsible for properly acquainting
those present with the safety precautions and instructions,
and of the hazards involved.
Figure 1
VENTILATION: Minimum openings required
Heater
Forced air (400 FAVT)
Enerco Group, Inc. | Force-Air Propane Construction Heater
Opening Opening
near floor near ceiling
3.5 ft 2 3.5 ft 2
SAFETY PRECAUTIONS
1. Check the heater thoroughly for damage. DO NOT operate
a damaged heater.
2. DO NOT modify the heater or operate a heater which has
been modified from its original condition.
3. Use only propane gas.
4. Use only VAPOR WITHDRAWAL propane supply. If there is
any question about vapor withdrawal, ask your propane
dealer.
5. Mount the propane cylinders vertically (shutoff valve up).
Secure them from falling or being knocked over and protect
them from damage.
6. Locate propane containers at least (USA) 7 ft. (2.13m),
(Canada) 10 ft. (3m) from the heater and do not direct
exhaust toward containers.
7. IMPORTANT Use only the hose and regulator assembly
provided with the heater. Match the color stripe on the
hangtag attached to the hose assembly with the color on
the label located near the propane inlet fitting on the
heater. Inspect hose assembly before each use of the
heater. If there is excessive abrasion or wear, or hose is cut,
replace with hose assembly listed on parts list before using
heater.
8. For indoor use only. Area must be well ventilated. Figure 1
(also see "Operating Precautions").
9. If at any time gas odor is detected, IMMEDIATELY
DISCONTINUE operation until the source of gas has been
located and corrected. Read enclosed Odor fade and
Propane Sheet for additional information about detecting
propane leaks.
10. Install the heater such that it is not directly exposed to
water spray, rain and/or dripping water.
11. Maintain minimum clearance from normal combustible
material (like paper). Figure 2
12. Due to the high surface and exhaust temperatures, adults
and children must observe clearances to avoid burns or
clothing ignition.
13. Operate only on a stable, level surface.
14. Do not use with ductwork. Do not restrict inlet or exit.
15. Use only the electrical power specified. The electrical
connection and grounding must comply with National
Electrical Code - ANSI/NFPA 70 (USA) and CSA C22.1
Canadian Electrical Code, Part 1 (Canada).
16. Use only a properly grounded 3-prong receptacle or
extension cord.
17. Do not move, handle or service while hot or burning.
18. Use only in accordance with local codes or, in the absence
of local codes, with the Standard for the Storage and
Handling of Liquefied Petroleum Gases ANSI/NFPA 58 and
CSA B149.1, Natural Gas and Propane Installation Code.
MINIMUM CLEARANCE: From normal combustible material
Clearance
From floor .................................................... 0 ft
From outlet .................................................. 8 ft
From sides .................................................... 2 ft
From top ...................................................... 3 ft
Locate 10 ft. from canvas or plastic tarpaulins or similar
coverings and secure them to prevent flapping or movement
due to wind action.
3
Operating Instructions and Owner's Manual
Figure 2
Forced Air 400FAVT