Enerco MR. HEATER MH170FAVT - Manuel (Page 3)

3 Enerco Group, Inc. | Force-Air Propane Construction Heater Operating Instructions and Owner’s Manual 70176 Rev. C 4/07
OPERATING PRECAUTIONS
This is a propane, direct-fired, forced air heater. It's 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.
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 duct work. 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. Do not adjust the heater combustion tube elevation
while heater is running or hot. Adjustments to elevation
should only be made after the heater has cooled to
touch.
19. 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.
Opening Opening
Heater near floor near ceiling
Forced air (170 FAVT) 3 ft 2 3 ft 2
Clearance Forced Air 170FAVT
From floor .................................................... 0 ft
From outlet ................................................... 6 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
Figure 1
VENTILATION: Minimum openings required
Figure 2: MINIMUM CLEARANCE: From normal combustible materials