Goodman ComfortNet ACVC9 Technical Manu Technical Manualal page 5

PRODUCT DESIGN
High Altitude Derate
When this furnace is installed at high altitude, the appropri-
ate High Altitude orifice kit must be installed. This is re-
quired due to the natural reduction in the density of both the
gas fuel and combustion air as altitude increases. The kit
will provide the proper design certified input rate within the
specified altitude range.
Furnace
GMVC950453BX*
GMVC95 0704CX*
AMVC950453BX*
AMVC950704CX*
GMVC95 0905CX*
AMVC950905CX*
GMVC95 0905DX*
GMVC95 1155DX*
AMVC950905DX*
AMVC951155DX*
GCVC91 155DX*
ACVC95 1155DX*
GCVC950714CX*
GCVC950915DX*
ACVC95 0714CX*
ACVC95 0915DX*
1 LPM-06* supports Honeywell and White-Rodgers 2-stage valves
"STANDARD" and "HIGH ALTITUDE" KITS
0 - 7,000 Feet (Sta ndard Altitude)
Gas Orifices
Pressure
(1)
No
LPM-06*
Change
#55 Orifice
No (1)
LPM-06*
Change
#55 Orifice
(1)
No
LPM-06*
Change
#55 Orifice
(1)
No
LPM-06*
Change
#55 Orifice
(1)
No
LPM-06*
Change
#55 Orifice
High altitude kits are purchased according to the installa-
tion altitude and usage of either natural or propane gas. Refer
to the chart below for a tabular listing of appropriate altitude
ranges and corresponding manufacturer's high altitude Natu-
ral Gas and Propane Gas kits. For a tabular listing of appro-
priate altitude ranges and corresponding manufacturer's High
Altitude Pressure Switch kits, refer to either the Pressure
Switch Trip Points & Usage Chart in this manual or the Ac-
cessory Charts in Service Instructions.
7,001 - 9,000 Feet
Gas Orifices
ID Blwr
Switch
HANG13 HALP11
No
#44 # 56
Change
Orifice Orifice
No
N/A N/A
Change
HANG13 HALP11
No
#44 # 56
Change
Orifice Orifice
HANG13 HALP11
No
#44 # 56
Change
Orifice Orifice
No
N/A N/A
Change
9,001 - 11,000 Feet
Gas Orifices
ID Blwr
Pres sure
Switch
HANG14 HALP11
HAPS28 #45 #56
Orifice Orifice
N/A N/A N/A
HANG14 HALP11
HAPS29 #45 #56
Orifice Orifice
HANG14 HALP11
HAPS29 #45 #56
Orifice Orifice
N/A N/A N/A
ID Blwr
Pressure
Switch
HAPS28
N/A
HAPS29
HAPS31
N/A
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