International comfort products C9MVX Installation Instructions Manual page 36

NATURAL GAS MANIFOLD PRESSURE (in wc)
Table 8
0 to 2000
HEATING
(0 to 609.6)
VALUE at
Mnfld Pres­
Orifice
ALTITUDE
sure
No.
BTU/CU. FT.
HI LO
700 −− −− −−
725 −− −− −−
750 −− −− −−
775 −− −− −−
800 −− −− −−
825 −− −− −−
850 −− −− −−
875 −− −− −−
900 −− −− −−
925 44 3.7 1.8
950 44 3.5 1.7
975 44 3.3 1.6
1000 44 3.2 1.6
1050 46 3.6 1.8
1100 47 3.8 1.8
Conversion: 1 in wc = 249 Pa
Bold− indicates factory orifice size.
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/NFPA 54−2009 or National Standard of Canada, Natural Gas and Propane Installation Code CSA B149.1−05.
In the USA, 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 (609.6 to
{
1371.6m) above sea level. Use the 2001 to 3000 (609.9 to 914.4m) column in Table 7, Table 8, Table 9, and Table 10.
Table 9 *9MPT & *9MPV PROPANE GAS MANIFOLD PRESSURE (in wc)
HEATING VALUE
at ALTITUDE
(0 to 609.6)
BTU/CU. FT.
HI
2500 10.0
Orifice Size
Conversion: 1 in wc = 249 Pa
NOTE: Propane data is based on 1.53 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code A
Z223.1/NFPA 54−2009 or National Standard of Canada, Natural Gas and Propane Installation Code CSA B149.1−05.
In the USA, 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 (609.6 to
{
1371.6m) above sea level. Use the 2001 to 3000 (609.9 to 914.4m) column in Table 7, Table 8, Table 9, and Table 10.
Table 10 *9MVX PROPANE GAS MANIFOLD PRESSURE (in wc)
HEATING VALUE
0 to 2000
at ALTITUDE
(0 to 609.6)
BTU/CU. FT.
Hi
2500 10.0
Orifice Size
Conversion: 1 in wc = 249 Pa
NOTE: Propane data is based on 1.53 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code A
Z223.1/NFPA 54−2009 or National Standard of Canada, Natural Gas and Propane Installation Code CSA B149.1−05.
In the USA, 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 (609.6 to
{
1371.6m) above sea level. Use the 2001 to 3000 (609.9 to 914.4m) column in Table 7, Table 8, Table 9, and Table 10.
36
MEAN ELEVATION ABOVE SEA LEVEL ft(m)
2001 to 3000{ 3001 to 4000
(914.7 to 1219.2)
(609.9 to 914.4){
Mnfld Pres­
Orifice Orifice
sure
No. No.
HI LO
−− −− −− −− −−
−− −− −− −− −−
−− −− −− −− −−
−− −− −− −− −−
−− −− −− −− −−
−− −− −− 44 3.7
−− −− −− 44 3.5
44 3.5 1.7 44 3.3
44 3.3 1.6 45 3.7
44 3.2 1.5 46 3.7
45 3.6 1.8 46 3.5
46 3.6 1.8 47 3.8
46 3.4 1.7 47 3.6
47 3.5 1.7 48 3.7
48 3.7 1.8 48 3.4
0 to 2000
2001 to 3000{
(609.9 to 914.4){
LO HI LO
4.9 10.0 4.9
#54 #54
MEAN ELEVATION FEET ABOVE SEA LEVEL ft(m)
2001 to 3000{ 3001 to 3999
(609.9 to 914.4){ (914.7 to 1219.2)
Lo Hi Lo
4.9 8.9 4.4 8.4
#55 #55
Specifications are subject to change without notice.
20,000 BTU per burner
4001 to 5000
(1219.5 to 1524)
Mnfld Pres­ Mnfld Pres­
Orifice
sure sure
No.
HI LO HI LO
−− −− −− −−
−− −− −− −−
−− −− −− −−
−− −− −− −−
−− 44 3.6 1.8
1.8 44 3.4 1.7
1.7 44 3.2 1.6
1.6 46 3.8 1.9
1.8 46 3.6 1.8
1.8 46 3.4 1.7
1.7 47 3.7 1.8
1.9 47 3.5 1.7
1.8 48 3.8 1.8
1.8 48 3.4 1.7
1.7 49 3.7 1.8
MEAN ELEVATION ABOVE SEA LEVEL ft(m)
3001 to 3999 4001 to 5000
(914.7 to 1219.2) (1219.5 to 1524)
HI LO HI
9.0 4.4 10.0
#54 #55
4001 to 5000
(1219.5 to 1524)
Hi Lo Hi Lo
4.1 10.0 4.9
#55 #56
5001 to 6000 6001 to 7000
(1524.3 to 1828.8) (1829.1 to 2133.6)
Mnfld Pres­ Mnfld Pres­
Orifice Orifice
sure
No. No.
HI LO HI
−− −− −− −− −−
−− −− −− 44 3.7
−− −− −− 44 3.5
44 3.5 1.7 44 3.2
44 3.3 1.6 45 3.7
45 3.8 1.8 46 3.6
46 3.7 1.8 46 3.4
46 3.5 1.7 47 3.7
47 3.8 1.8 47 3.5
47 3.6 1.8 48 3.7
47 3.4 1.7 48 3.5
48 3.7 1.8 48 3.4
48 3.5 1.7 49 3.8
49 3.7 1.8 −− −−
−− −− −− −− −−
5001 to 6000 6001 to 7000
(1524.3 to 1828.8) (1829.1 to 2133.6)
LO HI LO HI
4.9 9.4 4.6 8.5
#55
20,000 BTU per burner
5001 to 6000 6001 to 7000
(1524.3 to 1828.8) (1829.1 to 2133.6)
Hi Lo Hi Lo
10.0 4.9 10.0 4.9
#56 #56
7001 to 8000
(2133.9 to 2438.4)
Mnfld Pres­
Orifice
sure sure
No.
LO HI LO
−− 44 3.7 1.8
1.8 44 3.4 1.7
1.7 44 3.2 1.6
1.6 46 3.8 1.9
1.8 46 3.6 1.7
1.8 47 3.8 1.9
1.7 47 3.6 1.7
1.8 48 3.8 1.9
1.7 48 3.6 1.8
1.8 48 3.4 1.7
1.7 49 3.8 1.9
1.6 49 3.6 1.8
1.8 49 3.4 1.7
−− −− −− −−
−− −− −− −−
7001 to 8000
(2133.9 to 2438.4)
LO HI LO
4.2 10 4.9
#55 #56
NSI
7001 to 8000
(2133.9 to 2438.4)
Hi Lo
10.0 4.9
#56
NSI
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