440 01 1024 01
Specifications are subject to change without notice
35
Additional Propane Connection Requirements
1. Have a licensed Propane gas dealer make all connections
at storage tank and check all connections from tank to
furnace.
2. If copper tubing is used, it
MUST
comply with limitation set in
National Fuel Gas Code or CGA codes.
3. Two--stage regulation of Propane gas is recommended.
Propane Conversion
An accessory kit shall be used to convert to propane gas use, see
the furnace rating plate for the Propane conversion accessory kit
part number.
FIRE, EXPLOSION, UNIT DAMAGE HAZARD.
Failure to follow this warning could result in death,
property damage and/or personal injury.
A Propane conversion accessory kit is required
when operating the furnace with Propane gas.
!
WARNING
Alternate BTUH Input Ratings (USA Only)
The input rating of these furnaces can be changed from the
standard input rating to the alternate input rating shown in
Table 8,
by changing the main burner orifices. Changing of burner orifices
MUST be done by a qualified service technician. See section on
changing orifices or following page.
Table 8
Alternate Input Ratings, USA ONLY.
BTUH
Standard
Rating
BTUH
Alternate
Rating
Natural
Gas
Orifice*
Propane
Gas
Orifice**
50,000
40,000
#44
#55
75,000
60,000
#44
#55
100,000
80,000
#44
#55
125,000
100,000
#44
#55
* See
Table 11
for High Altitude
** See
Table 12
for High Altitude
Manifold Gas Pressure Adjustment
SEE CHECKS AND ADJUSTMENTS, Manifold Gas Pressure
Adjustment
in this manual.
MANIFOLD PRESSURE AND ORIFICE SIZE FOR HIGH ALTITUDE APPLICATIONS
Table 9
NATURAL GAS MANIFOLD PRESSURE (in wc)
25,000 BTU per burner
MEAN ELEVATION FEET ABOVE SEA LEVEL
HEATING
VALUE
at ALTITUDE
BTU/CU. FT.
0 to
2000
2001 to
3000
3001 to
4000
4001 to
5000
5001 to
6000
6001 to
7000
7001 to
8000
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
700
----
----
----
----
----
----
----
----
----
----
----
----
41
3.7
725
----
----
----
----
----
----
----
----
----
----
41
3.7
41
3.4
750
----
----
----
----
----
----
----
----
----
----
41
3.5
42
3.6
775
----
----
----
----
----
----
----
----
41
3.6
42
3.6
42
3.3
800
----
----
----
----
----
----
41
3.6
42
3.7
42
3.4
42
3.1
825
----
----
----
----
41
3.7
41
3.4
42
3.5
42
3.2
42
2.9
850
----
----
----
----
41
3.5
42
3.6
42
3.3
42
3.0
42
2.8
875
----
----
41
3.6
42
3.6
42
3.4
42
3.1
42
2.8
42
2.6
900
----
----
42
3.7
42
3.4
42
3.2
42
2.9
42
2.7
42
2.5
925
41
3.7
42
3.5
42
3.3
42
3.0
42
2.8
42
2.5
44
3.3
950
41
3.5
42
3.3
42
3.1
42
2.9
42
2.6
42
2.4
44
3.1
975
42
3.7
42
3.2
42
2.9
42
2.7
42
2.5
44
3.2
45
3.6
1000
42
3.5
42
3.0
42
2.8
42
2.6
42
2.4
45
3.7
45
3.4
1050
42
3.2
42
2.7
42
2.5
44
3.3
45
3.6
----
----
----
----
1100
43
3.6
42
2.5
44
3.2
45
3.6
----
----
----
----
----
----
Conversion: 1 in wc = .25 kPa
NOTE:
Natural gas data is based on 0.60 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI
Z223.1--2006/NFPA 54--2006 or National Standard of Canada, Natural Gas And Propane Installation Code CSA B149.1--05.
Table 10
PROPANE GAS MANIFOLD PRESSURE (in wc)
25,000 BTU per burner
HEATING VALUE
at ALTITUDE
BTU/CU. FT.
MEAN ELEVATION FEET ABOVE SEA LEVEL
0 to
2000
2001 to
3000
3001 to
4000
4001 to
5000
5001 to
6000
6001 to
7000
7001 to
8000
2500
10.0
10.0
9.0
10.0
9.4
8.5
10.0
Orifice Size
#54
#54
#54
#55
#55
#55
#56
Conversion: 1 in wc = .25 kPa
NOTE:
Propane data is based on 1.53 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI
Z223.1--2006/NFPA 54--2006 or National Standard Of Canada, Natural Gas And Propane Installation Code CSA B149.1--05.
NOTE:
The derating of these furnaces at 2% (Natural Gas) and 4% (Propane Gas) has been tested and design--certified by CSA.
In Canada, the input rating must be derated 5% (Natural Gas) and 10% (Propane Gas) for altitudes of 2,000 to 4,500 above sea level. Use
the 2001 to 3000 column in
Table 9
,
Table 10
,
Table 11
and
Table 12
.
