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P/N 472089 Rev. E 4-19-05
16
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CAUTION
Chemicals should not be stored near the heater installation. Combustion air can be contaminated by corrosive
chemical fumes which can void the warranty.
VENT ADAPTORS
(FITS ALL MODELS)
The proper vent adaptor must be installed on the heater
as shown below in Figure 9.
COMBUSTION AIR SUPPLY
For indoor installation, the heater location must
provide sufficient air supply for proper combustion
and ventilation of the surrounding area.
The requirements for the air supply specify that the
room in which a heater is installed should be provided
with two permanent air supply openings; one within
12 inches of the ceiling, the other within 12 inches of
the floor. These openings shall directly, or through
duct, connect to outdoor air.
Pentair Water Pool and Spa, Inc. does not recommend
indoor installations that do not provide combustion
air from outside the building.
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Vent
Adaptor
Air Supply Requirements Guide
for MiniMax NT LN Heaters
Figure 9.
1. Remove the six (6) retaining screws from the old
exhaust grill and discard the screws, gasket, and
exhaust grill as shown in Figure 10.
GASKET
SCREWS (6)
METAL FLANGE
SCREWS (6)
GASKET
EXHAUST GRILL
2. Install the Vent Adaptor as shown in Figure 11.
Make sure the holes in the gasket, metal flange of
the main vent assembly, and heater cover are
aligned before securing into place using the six (6)
screws provided in the Vent Adaptor Kit.
Figure 10.
Figure 11.
Section III. Installation
Table 10.