High Altitude Derate; Propane Gas Conversion - Amana MVM97 Installation Instructions Manual

Gas Supply and Piping
The furnace rating plate includes the approved furnace
gas input rating and gas types. The furnace must be
equipped to operate on the type of gas applied. This
includes any conversion kits required for alternate fuels
and/or high altitude.
T
O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE
INLET GAS SUPPLY PRESSURE MUST BE AS SPECIFIED ON THE UNIT
RATING PLATE WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANCES
.
OPERATING
Inlet gas supply pressures must be maintained within the
ranges specified in the following table. The supply pres-
sure must be constant and available with all other house-
hold gas fired appliances operating. The minimum gas
supply pressure must be maintained to prevent unreliable
ignition. The maximum must not be exceeded to prevent
unit overfiring.
Inlet Gas Supply Pressure
Natural Gas Minimum:
Propane Gas Minimum: 11.0" w.c.
A heat pump thermostat with three stages of heat is re-
quired to properly use a two-stage furnace in conjunction
with a heat pump. Refer to the fossil fuel kit (AFE18-60A)
installation instructions for additional thermostat require-
ments.
Propane Gas/High Altitude Installations
P
OSSIBLE PROPERTY DAMAGE
OCCUR IF THE CORRECT CONVERSION KITS ARE NOT INSTALLED
APPROPRIATE KITS MUST BE APPLIED TO ENSURE SAFE AND PROPER
. A
FURNACE OPERATION LL CONVERSIONS MUST BE PERFORMED BY A
QUALIFIED INSTALLER OR SERVICE AGENCY
This furnace is shipped from the factory configured for
natural gas up to 10,000 ft. altitude. Propane conversions
require the proper LP kit to compensate for the energy
content difference between natural and propane gas.
Gas Altitude Kit
Natural None
0-10,000
Propane LPM-09
NOTE: In Canada, gas furnaces are only certified to 4500 feet.
CAUTION
4.5" w.c. Maximum: 10.0" w.c.
Maximum: 13.0" w.c.
WARNING
,
PERSONAL INJURY OR DEATH MAY
.
Manifold Pressure
Low Stage
Orifice
High
(50% firing
Stage
#45
rate)
1
3.5"w.c. 1"w.c.
1.25����
2
10.0"w.c. 2.6"w.c.
For furnaces being converted to LP gas, it is strongly rec-
ommended that a LPLP03 kit also be installed. The use of
this kit will prevent the furnace from firing when the LP
gas supply pressure is too low to support proper combus-
tion.
The indicated kit must be used to ensure safe and proper
furnace operation. All conversions must be performed by
a qualified installer, or service agency.

High Altitude Derate

,
THE
In some areas the gas supplier may artificially derate the
gas in an effort to compensate for the effects of altitude.
If the gas is artificially derated, the appropriate orifice
size must be determined based upon the BTU/ft3 con-
tent of the derated gas and the altitude. Refer to the
National Fuel Gas Code, NFPA 54/ANSI Z223.1 or CAN/CSA
B149.1-15 in Canada, and information provided by the gas
supplier to determine the proper orifice size.

Propane Gas Conversion

P
OSSIBLE PROPERTY DAMAGE
OCCUR IF THE CORRECT CONVERSION KITS ARE NOT INSTALLED
APPROPRIATE KITS MUST BE APPLIED TO ENSURE SAFE AND PROPER
FURNACE OPERATION
QUALIFIED INSTALLER OR SERVICE AGENCY
As shipped, this unit is configured for natural gas. The
LPM-09 is required to convert this furnace to operate on
LP gas.
The correct kit must be used to insure safe and proper
furnace operation. All conversions must be performed by
a qualified installer, or service agency.
Gas Valve
. T
HE This unit is equipped with a 24 volt gas valve which mod-
ulates by pneumatic linkage to the combustion air blower.
Taps for measuring the gas supply pressure and manifold
pressure are provided on the valve. This is a non-convert-
ible, non-adjustable gas valve equipped for natural gas.
The gas valve has a manual ON/OFF control located on
the valve itself. This control may be set only to the "ON"
or "OFF" position. Refer to the lighting instructions label
or the Startup Procedure & Adjustment section of this
manual for use of this control during start up and shut
down periods.
Pressure
Switch
Change
None
None
WARNING
,
PERSONAL INJURY OR DEATH MAY
. A
LL CONVERSIONS MUST BE PERFORMED BY A
.
. T
HE