High Altitude & Orifice Chart - Schwank STS-JZ Installation & Owner's Manual

27. HIGH ALTITUDE INSTALLATION
When this appliance is installed above the altitude stipulated below, the input must be de-rated
by 4% for each 1000 ft . Refer to the chart next page for orifice sizing and restrictions that ap-
ply to high altitude installation. Check with your local utility regarding de-rating.
USA: The factory installed orifice for this appliance is approved for altitudes zero to
2000 feet above sea level. Above 2000 feet, refer to table below.
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 below.
STS-JZ-F / IQ-F I&O Manual
IM101220
RD: MAY 2014
RL: 17A
~ ORIFICE TABLE ON NEXT PAGE ~
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