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34
SE+ Series Infrared Gas Heater Installation and Operation Manual
22. HIGH ALTITUDE INSTALLATION / DERATION
This heater not to be installed at altitude above 6,800 feet.
USA:
The factory installed orifice for this appliance is approved for altitudes
zero to 2000 feet
above
sea level. When installed
above 2000 feet
,
refer to information below
.
When this appliance is installed above the standard altitude stipulated the input must be de
-
rated by 4%
for each 1000 ft above sea level. The orifice must be changed according to the chart below
-
confirm
the correct model. Check with your local utility regarding the gas supply and the de
-
rating of this appli-
ance.
1
Per ANSI Z223.1 (NFPA 54)
MODEL
USA ORIFICE DERATION
FOR USE AT ALTITUDES ABOVE (FEET)
Gas Orifice Drill Size
1
/ Part #
Supplied
USA Only
0
> 2000
> 3000
> 4000
> 5000
> 6000
DO NOT
INSTALL AT
ALTITUDE ABOVE
6,800 FEET
RSEP1S25N (NG)
45 DMS
46 DMS
2 MM
47 DMS
48 DMS
48 DMS
906000140
906000141
906000153
906000163
906000164
906000164
RSEP1S25P (LPG)
54 DMS
54 DMS
55 DMS
55 DMS
55 DMS
55 DMS
906000144
906000144
906000170
906000170
906000170
906000170
RSEP1S35N (NG)
38 DMS
39 DMS
40 DMS
41 DMS
41 DMS
42 DMS
906000025
906000157
906000138
906000159
906000159
906000160
RSEP1S35P (LPG)
50 DMS
51 DMS
51 DMS
51 DMS
51 DMS
52 DMS
906000026
906000142
906000142
906000142
906000142
906000167
RSEP2S50N (NG)
31 DMS
32 DMS
32 DMS
32 DMS
33 DMS
34 DMS
906000137
906000154
906000154
906000154
906000155
906000156