General Information - Mr. Heater MH25NG Mode D'emploi

3. GENERAL INFORMATION

• Your heater comes fully assembled and is
tested at the factory with the appropriate type
of gas and at the input pressures stated on the
nameplate.
• Upon receipt and prior to attempting installation,
be sure to inspect the heater and its packaging
for damage and/or missing components. If
damage is found or missing components are
suspected, contact your dealer. See Chapter 5
for a complete listing of items required for the
safe and efficient installation and use of this
heater.
• Never attempt to operate the heater using a
fuel other than that specifically identified on the
nameplate.
• The installation of the heater must conform
with all local building codes or, in absence of
governing local codes, with the National Fuel
Gas Code, ANSI Z223.1 (NFPA 54). This code
can be obtained from either the: Canadian
Standards Association, 8501 East Pleasant
Valley Road, Cleveland, OH 44131; or, NFPA,
Battery March Park, Quincy, MA 02269.
• Canadian installations must comply with CAN/
CGA-B149.1.2 gas code which can be purchased
from Canadian Gas Association, 55 Scarsdale
Road, Don Mills, Ontario M3B 2R3.
• Contact factory when appliance is to be installed
at high altitudes. Factory can supply high altitude
conversion kit with instructions and data plate.
• A plugged 1/8" N.P.T. Test Gage Connection is
provided on the heater gas control.
• See Tables 1 and 2 for heater specifications:
MODEL BTU/HR. RATING
NO.
NATURAL
MH25NG 25,000
MH25LP —
MODEL OPERATING
NO. PRESSURE
MH25NG 6.0"w.c.
MH25LP 10"w.c.
Mr. Heater / Infrared Workshop Heater
Table 1. BTU Ratings and Supply Pressures
GAS MIN.
PROPANE NAT.
— 7.0"
22,000 —
Table 2. Heater Dimensions and Orifice Sizes
ORIFICE SIZE
BURNER PILOT
45 .018
55 .011
WARNING: Improper installation, adjustment,
alteration, service or maintenance can cause property
damage, injury or death. Read the installation,
operation, and maintenance instructions thoroughly
before installing or servicing this equipment. For
assistance or additional information consult a qualified
installer, service agency, or gas supplier.
•
For additional information contact Mr. Heater
Toll-Free 1-800-251-0001—www.mrheater.com
The following extra NFPA Manuals are helpful when
installing this heater in a location not anticipated in this
manual:
Number
NFPA 88 Clearances to Combustible Surfaces
NFPA 409 Clearances to Combustible Surfaces
DO NOT EXCEED 1/2 PSI INLET PRESSURE TO HEATER
Provide adequate clearance to combustibles per Table 3
at control end of heater for servicing and minimum on top
and sides for ventilation and combustion air supply.
A minimum clearance of 8' above floor for public garages
in accordance with NFPA No. 88 most recent edition, or
Figure 1; whichever is larger.
Canadian installations in public garages must comply with
CGA 149B.1.9 most recent edition.
WARNING: Maintain clearances as shown in Figure 2
or on heater nameplate.
GAS SUPPLY PRESSURE (W.C.)
MAX.
L.P. NAT. L.P.
— 14" —
11" — 14"
INPUT
BTU/H WIDTH LENGTH
25.000 12-1/4" 29-3/4"
22,000 12-1/4" 29-3/4"
Installation instructions and Owner's Manual
E4
Related Subject
ORIFICE
MANIFOLD SIZE
NAT. L.P. NAT. L.P.
6" — 45 —
— 10" — 55
SIZE
HEIGHT WEIGHT
7" 20 lb.
7" 20 lb.