GAMA Gas-Fired Furnace User's Information Manual - page 25
Installation of Air Inlet Connector:
The
air inlet connector
must be installed on the top
panel of the furnace (See Figure 19). The connector and
mounting screws are shipped in the vestibule of the
furnace. The air inlet connector is placed over the hole
pattern in the top panel and the lip on the bottom of the
connector must fit into the hole on the top panel. The
connector is then secured to the top panel using the four
(4) No. 10 x 5/8 sheet metal screws. The screws should
be tightened securely, so the lip of the connector is
seated properly in the hole in order to prevent air
leakage. When installing furnace as non-direct vent (one
[1] pipe), a field supplied PVC street elbow must be
attached to the air inlet connector with the elbow open
end facing front (Figure 19. When installing furnaces as
direct vent (two [2] pipe), air inlet piping must match vent
pipe in length and configuration. 2" diameter connections
are made directly to the supplied air inlet connector. 3"
diameter connections require 2" to 3" transition.
Transition to be located within 12 linear inches of
cabinet.
Figure 19
AIR INLET CONNECTOR ASSEMBLY
Terminate the combustion air intake in the same
pressure zone as the vent outlet and as far as
possible from the air conditioning unit or heat pump,
swimming pools, swimming pool pumping units and
dryer vents.
To "Convert" from Upflow to Horizontal (Left) Airflow:
This furnace is shipped for installation in the upflow
configuration, but may be installed in a horizontal right-to-
left airflow direction. The changes needed to "convert" to
the horizontal position are:
1.
Disconnect hoses from condensate trap, remove
fastening screws and remove trap as shown in Figure
21.
2.
Remove horizontal condensate opening knockout
from left side of cabinet as shown in Figure 22
3.
Remove inducer to condensate trap hose from unit as
shown in Figure 20. Resize this hose by removing
approximately 4" from straight end as shown in
Figure 23. Attach supplied 1/2" hose coupling to cut
end. Connect supplied 1/2" hose with formed elbow
to 1/2" coupling to condensate trap as shown in
Figure 22. Re-attach hose to drain connection at
inducer outlet (See Figure 23).
4.
Remove secondary heat exchanger drain hose from
unit see Figure 21 Resize hose by removing
approximately 2.5" from secondary heat exchanger
end and 1" from the trap end, (See Figure 22).
Attach supplied 1/2" street elbow to re-sized hose
(See Figure 23.
5.
Connect secondary heat exchanger drain hose from
secondary heat exchanger drain to condensate trap
(See Figure 23).
6.
Connect pressure switch hose to condensate trap
(See Figure 23).
7.
Cover original condensate trap opening in blower
partition panel with cover plate and mounting screws
from accessory part bag.
Figure 20
CONDENSATE TRAP HOSE CONNECTIONS
20558801
Issue 0442
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