HIGH ALTITUDE OPERATION
This Unit heater is factory configured for altitudes from 0 – 2,000 ft above sea level. Above 2000 ft. (610m), manifold pressure must be
adjusted according to the following tables:
Manifold Pressure
Model
[" W.C.]
MHRP37GL
6.4
Manifold Pressure
Model
[" W.C.]
MHRP37GL
5.42
Manifold Pressure
Model
[" W.C.]
MHRP37GL
7.5
Manifold Pressure
Model
[" W.C.]
MHRP37GL
6.35
In case the manifold pressure is changed for this reason, the altitude label in the conversion kit must be completed and affixed to the unit:
This appliance was converted on ______ (day-month-year)
for operation at ____ ft.(___m) altitude by ____________
(name and address of the organization making this conver-
sion) which accepts the responsiblity that this conversion
has been properly made.
Manifold pressure adjustment____W.C. Input rating____
Btu/hr
All manuals and user guides at all-guidesbox.com
Altitude 0-2000 ft. (0-610m)
Input Rating
[kPa]
[BTU/Hr]
1.6
37,000
Altitude 3000-4000 ft. (910-1220m)
Input Rating
[kPa]
[BTU/Hr]
1.35
34,040
TABLE 5: Natural Gas Heating Values at Altitude
Altitude 0-2000 ft. (0-610m)
Input Rating
[kPa]
[BTU/Hr]
1.87
37,000
Altitude 3000-4000 ft. (910-1220m)
Input Rating
[kPa]
[BTU/Hr]
1.58
34,040
TABLE 6: Propane Gas Heating Values at Altitude
Outdoor Patio Heater
Altitude 2000-3000 ft. (610-910mm)
Manifold Pressure
[W]
[" W.C.]
[kPa]
10,844
5.90
1.47
Altitude 4000-4500 ft. (1220-1350mm)
Manifold Pressure
[W]
[" W.C.]
[kPa]
9,976
5.18
1.30
Altitude 2000-3000 ft. (610-910mm)
Manifold Pressure
[W]
[" W.C.]
[kPa]
10,844
6.91
1.72
Altitude 4000-4500 ft. (1220-1350mm)
Manifold Pressure
[W]
[" W.C.]
[kPa]
9,976
6.08
1.51
10
Operating Instructions and Owner's Manual
Input Rating
[BTU/Hr]
[W]
35,520
10,410
Input Rating
[BTU/Hr]
[W]
33,300
9,760
Input Rating
[BTU/Hr]
[W]
35,520
10,410
Input Rating
[BTU/Hr]
[W]
33,300
9,760