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Idiomas disponibles
HIGH ALTITUDE OPERATION
WARNING
Explosion hazard. This heater must be converted by a trained gas installation and service personnel only. Failure to
comply could result in personal injury, asphyxiation, death, and fire or property damage.
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.]
MHU200NG
4.5
MHU250NG
4.9
MHU300NG
1.73
MHU400NG
2.13
Manifold Pressure
Model
[" W.C.]
MHU200NG
3.81
MHU250NG
4.15
MHU300NG
1.46
MHU400NG
1.80
Manifold Pressure
Model
[" W.C.]
MHU200NG
7.23
MHU250NG
7.23
MHU300NG
3.81
MHU400NG
4.74
Manifold Pressure
Model
[" W.C.]
MHU200NG
6.12
MHU250NG
6.12
MHU300NG
3.22
MHU400NG
4.01
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
Altitude 0-2000 ft. (0-610m)
Input Rating
[kPa]
[BTU/Hr]
1.12
200,000
1.22
250,000
0.43
300,000
0.53
400,000
Altitude 3000-4000 ft. (910-1220m)
Input Rating
[kPa]
[BTU/Hr]
0.95
184,000
1.03
230,000
0.36
276,000
0.45
368,000
TABLE 7: Natural Gas Heating Values at Altitude
Altitude 0-2000 ft. (0-610m)
Input Rating
[kPa]
[BTU/Hr]
1.8
200,000
1.8
250,000
0.95
300,000
1.18
400,000
Altitude 3000-4000 ft. (910-1220m)
Input Rating
[kPa]
[BTU/Hr]
1.52
184,000
1.52
230,000
0.80
276,000
1.00
368,000
TABLE 8: Propane Gas Heating Values at Altitude
Large Unit Heater
Altitude 2000-3000 ft. (610-910mm)
Manifold Pressure
[W]
[" W.C.]
58,614
4.15
73,268
4.52
87,921
1.59
1 17,228
1.96
Altitude 4000-4500 ft. (1220-1350mm)
Manifold Pressure
[W]
[" W.C.]
53,925
3.65
67,407
3.97
80,887
1.40
107,850
1.73
Altitude 2000-3000 ft. (610-910mm)
Manifold Pressure
[W]
[" W.C.]
58,614
6.66
73,268
6.66
87,921
3.51
1 17,228
4.37
Altitude 4000-4500 ft. (1220-1350mm)
Manifold Pressure
[W]
[" W.C.]
53,925
5.86
67,407
5.86
80,887
3.09
107,850
3.84
13
Operating Instructions and Owner's Manual
Input Rating
[kPa]
[BTU/Hr]
1.03
192,000
1.12
240,000
0.40
288,000
0.49
384,000
Input Rating
[kPa]
[BTU/Hr]
0.91
180,000
0.99
225,000
0.35
270,000
0.43
360,000
Input Rating
[kPa]
[BTU/Hr]
1.66
192,000
1.66
240,000
0.88
288,000
1.09
384,000
Input Rating
[kPa]
[BTU/Hr]
1.46
180,000
1.46
225,000
0.77
270,000
0.96
360,000
[W]
56,269
70,337
84,404
1 12,539
[W]
52,753
65,941
79,129
105,505
[W]
56,269
70,337
84,404
112,539
[W]
52,753
65,941
79,129
105,505
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