Gas Supply And Piping; Propane Gas/High Altitude Installations - Amana MVC96 BB Series Installation Instructions Manual

Counterflow Model Installed Horizontally
with Left Side Down
* Also see Front Cover Pressure Switch Tube Location on
page 10.
Minimum 5 ½" clearance is required for the drain trap
beneath the furnace.
Hose #4
1. Remove the factory installed drain trap and hose
assemblies. Leave the 100° elbow inserted and
clamped in the vent-drain elbow.
2. Remove two 1"plugs from left side of cabinet
3. Drain the Collector Box. Remove the cap from the
left side of the collector box drain port (bottom in
horizontal left position) and install it on right side drain
port.
4. Place radius end of hose #4 (factory installed) on
the collector box drain port and secure with a silver
clamp.
5. Insert hose #2 from outside the cabinet in the front
drain hole.
6. Connect hose #4 & hose #2 together using a straight
barbed coupling and two gold clamps (factory
installed).
7. (Draining the Vent Elbow) Remove rubber plug from
vent – drain elbow side port.
8. The un-used vent-drain elbow drip leg port must
be plugged to prevent flue gases from escaping.
Insert rubber plug removed in step 7 into the 100°
elbow. (Inserting a blunt tool such as a 3/16" Allen
wrench into the center of the rubber plug will stretch
the plug and allow complete insertion).
9. Place radius end of hose #4 on the side port of vent –
drain elbow and secure with a gold clamp.
10. Insert a ½" diameter PVC pipe (factory installed) into
hose #4 and secure with a gold clamp.
11. Insert the non-grommet end of hose #5 (factory
installed) from outside the cabinet in the back drain
hole.
12. Insert 100º elbow in hose #5 and secure with a red
clamp.
13. Locate hose #4 and cut a cut off a 4" straight section
and discard the radius end.
Hose #4
Hose #5
Hose #2
Figure 32
14. Connect the 4" straight section of hose #4 to the 100º
elbow and the PVC pipe and secure with red clamps.
15. Connect the hoses to the trap inlets and secure
with silver clamps, drain trap outlet must point to the
original bottom of the furnace.
16. Using the two sheet metal screws provided in the
cabinet, secure the trap to the furnace.
17. Refer to Field Supplied Drain section for instructions
on field supplied / installed drain on outlet of furnace
trap.
To prevent unreliable operation or equipment damage, the
inlet gas supply pressure must be as specified on the unit
rating plate with all other household gas fired appliances
operating.
INLET GAS SUPPLY PRESSURE
Natural Gas Minimum: 4.5" w.c. Maximum: 10.0" w.c.
Propane Gas Minimum: 11.0" w.c. Maximum: 13.0" w.c.

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.
Inlet gas supply pressures must be maintained within the
ranges specified in the following table. The supply pressure
must be constant and available with all other household
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.
PROPANE GAS/HIGH ALTITUDE
INSTALLATIONS
Gas Altitude Kit
Natural None
0-7000
LPM-08*
Propane
1
LPM-08* supports both Honeywell and White-Rodgers 2-stage valves
NOTE: In Canada, gas furnaces are only certified to 4500 feet.
This furnace is shipped from the factory configured for
natural gas at standard altitude. Propane gas installations
require an orifice change to compensate for the energy
content difference between natural and propane gas.
22
CAUTION
Manifold Pressure
Orifice
High Low
Stage Stage
#45 3.5" w.c. 1.9" w.c.
1
1.25mm 10.0" w.c. 6.0" w.c.
Pressure
Switch
Change
None
None