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1. GENERAL INFORMATION
a. Your heater comes fully assembled and is tested at the factory
for proper gas and input as stated on the name plate.
b. Before proceeding with the installation, be sure to inspect for
damages. Freight company must be notified of any damages
and request that the inspection be made. MR. HEATER will
send replacement parts for damaged parts only after receiving
a signed inspection report to prove the liability of the freight
company.
c. Do not attempt to operate heater with any other gas than that
indicated on the heater name plate.
d. The installation of heater must conform with local building
codes, or in absence of local codes, with the National Fuel Gas
Code, ANSI Z223.1a/NFPA54, and Standard for Storage and
Handling of Liquefied Petroleum Gases, ANSI/NFPA 58.
e. Canadian installations must comply with CAN/CGA-B149.1.2
Gas Code which can be purchased from the CSA (Canadian
Standards Association) website @ http://www.csa.ca or by
calling 1-800-463-6727.
f. Plugged 1/8" N.P.T. Test Gage Connection is located on the
Heater Gas Valve or a ¼" N.P.T. Connection is located on the
outside of the Cast Venturi.
g. Contact the factory when appliance is to be installed at high
altitudes. Factory supplies high-altitude conversion kits with
instructions and data plates.
For additional information, contact;
MR. HEATER CORPORATION
CUSTOMER SERVICE DEPT.
CLEVELAND, OHIO
1-800-251-0001
MODEL
BTU/HR. RATING
NO.
NATURAL
MH/HS40NG
40,000
MH/HS40LP
—
MODEL
OPERATING
NO.
PRESSURE
MH/HS40NG
6.8"w.c.
MH/HS40LP
10"w.c.
Table 3. Installation, Ventilation and Mounting Information
BTU/HR. RATING
MODEL
GAS
NO.
NAT.
L.P.
MH/HS40NG
40,000 —
MH/HS40LP
—
40,000
Table 1. BTU Ratings and Supply Pressures
GAS
PROPANE
NAT.
—
6.8" W.C.
40,000
—
Table 2. Heater Dimensions and Orifice Sizes
ORIFICE SIZE
BURNER
PILOT
37
.023
50
.015
NORMAL
MOUNTING
POSITION
HORIZ-30˚
HORIZ-30˚
Model # MH40NG/LP
*The following extra NFPA manuals are helpful when installing
MR. HEATER in a location not anticipated in this manual:
Number
NFPA 88
NFPA 409
DO NOT EXCEED ½ PSI INLET PRESSURE TO HEATER
2. CLEARANCES
Minimum clearances to combustibles (Refer to Table 3). Provide
adequate clearance to combustibles, see Table 3. Also between
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 ANSI/NFPA No. 409 most recent edition, or Table
3; the larger dimension of ANSI/NFPA No. 409 or Table 3 is to be
used.
*When selecting installation locations for MR. HEATER ensure that
the opening of any exterior or interior doors or windows will not
violate clearances or contact any heater components.
The clearances to combustibles represent a surface temperature
of 90°F (32°C) above room temperature. Building materials with
low heat tolerance may be subject to degradation at lower
temperatures. It is the installer's responsibility.
GAS SUPPLY PRESSURE (W.C.)
MIN.
MAX.
L.P.
NAT.
L.P.
—
7" W.C.
—
11" W.C.
—
14" W.C. —
INPUT
BTU/H
WIDTH
40.000
19-1/4"
40,000
19-1/4"
CLEARANCES TO COMBUSTIBLE SURFACES
TOP
SIDES
34"
30"
34"
30"
E3
Installation Instructions and Owner's Manual
Related Subject
Clearances to Combustible Surfaces
Clearances to Combustible Surfaces
ORIFICE
MANIFOLD
NAT.
L.P.
NAT.
5.8"
—
37
10"
—
SIZE
LENGTH
HEIGHT
WEIGHT
30-1/4"
12"
30-1/4"
12"
BACK
BELOW
30"
68"
30"
68"
SIZE
L.P.
—
50
25 lbs.
25 lbs.
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