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PRODUCT DESIGN
6
2000
300 0
40 00
4 500
5000
6000
7000
8000
U.S. BURNER ORIFICE
45/55 47/55 47/56
-
47/56 48/57 48/58 4 9/58
CANADA BURNER ORIFICE
45/55
-
-
48/57
-
-
-
-
2000
300 0
40 00
4 500
5000
6000
7000
8000
U.S. BURNER ORIFICE
44/55 44/55 45/56
-
45/56 46/57 47/58 4 7/58
CANADA BURNER ORIFICE
44/55
-
-
47/57
-
-
-
-
2000
300 0
40 00
4 500
5000
6000
7000
8000
U.S. BURNER ORIFICE
43/55 43/55 44/56
-
44/56 44/56 45/57 4 5/57
CANADA BURNER ORIFICE
43/55
-
-
46/57
-
-
-
-
ELEVATION ABOVE SEA-LEVEL (FEET)
20,000 BTUH NAT/20,00 0 BTUH/L.P.
INPUT/BURNER
INPUT/BURNER
HIGH ALTITUDE
KIT
HA-02
HIGH ALTITUDE
KIT
22,500 BTUH NAT/20,00 0 BTUH/L.P.
ELEVATION ABOVE SEA-LEVEL (FEET)
HA-02
HA-02
INPUT/BURNER
25,000 BTUH NAT/20,00 0 BTUH/L.P.
ELEVATION ABOVE SEA-LEVEL (FEET)
HIGH ALTITUDE
KIT
NATURAL GAS AND LP GAS INSTALLATIONS AT ALTITUDES > 2000 FT
High Altitude Derate - U.S. Installations Only (Optional)
The gas/electric units naturally derate with altitude. High
Altitude Derate kit may be installed if desired.
IMPORTANT NOTE:
The gas/electric units naturally derate
with altitude. Do not attempt to increase the firing rate by
changing orifices or increasing the manifold pressure. This
can cause poor combustion and equipment failure. At all
altitudes, the manifold pressure must be within 0.3 inches
W.C. of that listed on the nameplate for the fuel used. At all
altitudes and with either fuel, the air temperature rise must
be within the range listed on the unit nameplate. Refer to
the Installation Manual provided with the LP kit for conversion
from natural gas to propane gas and for altitude adjustments.
When this package unit is installed at high altitude, the ap-
propriate High Altitude orifice kit may be installed. As alti-
tude increases, there is a natural reduction in the density of
both the gas fuel and combustion air. This kit will provide the
proper design certified input rate within the specified altitude
range. High altitude kits are not approved for use in Canada.
For installations above 2,000 feet, use kit HA-02. The HA-02
kit is used for both Natural and LP gas at high altitudes.
Use LPT-03 propane conversion kit for propane conversions
at altitudes below 2000 feet. Natural gas installations below
2000 feet do not require a kit.
For propane conversion above 2000 feet, high altitude kit
HA-02 is required in addition to the LPT-03 propane con-
version kit.