Table of Contents
Advertisement
27. HIGH ALTITUDE INSTALLATION
When this appliance is installed above the stipulated altitude for the USA or Canada, the input
must be de-rated by 4% for each 1000 ft above the stipulated altitude. If your local utility sup-
plies gas with a de-rated heat content, no orifice change is required in the heater . Check
with your local utility regarding de-rating of this appliance.
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 the table above for
the correct orifice.
Canada: The factory installed orifice for this appliance is approved for altitudes zero to
4500 feet above sea level. When installed above 4500 feet, refer to the table above for
the correct orifice.
ORIFICE - ALTITUDE CONVERSION CHART (see NOTES above)
STD
ORIFICE
MODEL
Drill
NO
Size /
Part#
UHE / EIH-
26 DMS
JS-0726-DM
60N
UHE / EIH-
15 DMS
JS-0715-DM
90N
UHE / EIH-
5.8 mm
JS-0758-MM
130N
UHE / EIH-
1/4"
JS-0725-IN
160N
UHE / EIH-
'N' Drill Size
JS-070N-NS
200N
FOR USE AT ALTITUDES ABOVE (FEET)
2000
3000
27 DMS
9/64"
JS-0727-DM
JS-0714-IN
JS-0728-DM
17 DMS
17 DMS
JS-0717-DM
JS-0717-DM
JS-0718-DM
2 DMS
7/32"
JS-0702-DM
JS-0722-IN
JS-0703-DM
'C' Drill Size
'B' Drill Size
JS-070C-NS
JS-070B-NS
JS-0760-MM
'M' Drill Size
'L' Drill Size
'L' Drill Size
JS-070M-NS
JS-070L-NS
JS-070L-NS
4000
5000
6000
28 DMS
29 DMS
29 DMS
JS-0729-DM
JS-0729-DM
18 DMS
19 DMS
19 DMS
JS-0719-DM
JS-0719-DM
3 DMS
3 DMS
4 DMS
JS-0703-DM
JS-0704-DM
6 mm
'A' Drill Size
1 DMS
JS-070A-NS
JS-0701-DM
9/32"
7.0 mm
JS-0728-IN
JS-0770-MM
43
7000
8000
9000
30 DMS
30
JS-0730-DM
JS-0730-DM
JS-0713-IN
20 DMS
22 DMS
23 DMS
JS-0720-DM
JS-0722-DM
JS-0723-DM
5 DMS
7 DMS
JS-0705-DM
JS-0707-DM
JS-0709-DM
1 DMS
2 DMS
JS-0701-DM
JS-0702-DM
JS-0703-DM
'
' Drill Size
17/64"
'G' Drill Size
I
JS-070
-NS
JS-0726-IN
JS-070G-NS
I
UHE / EIH I&O Manual
RD: MAY 2013
1/8
9 DMS
3 DMS
IM100205
RL: 03D
Advertisement
Table of Contents
