Pentair SR200NA - Combustion Air Supply; Corrosive Vapors and Possible Causes

19
P/N S794 Rev. H 8-11-14 MAX-E-THERM
®
Pool and Spa Heater Installation and User’s Guide
CAUTION
Chemicals should not be stored near the heater installation. Combustion air can be contaminated by corrosive
chemical fumes which can void the warranty.
Corrosive Vapors and Possible Causes
COMBUSTION AIR SUPPLY
For indoor installation, the heater location must provide
sufficient air supply for proper combustion and ventilation
of the surrounding area.
The minimum 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 (30cm) of the ceiling, the other within 12 inches
(30cm) of the floor for combustion air, in accordance with
the latest edition of ANSI Z223.1, or the National Fuel Gas
code, the CSA B149.1, Natural Gas and Propane Installation
Codes, as applicable, and any local codes that may apply.
These openings shall directly, or through duct, connect to
outdoor air.
Pentair Aquatic Systems does not recommend indoor
installations that do not provide combustion air from
outside the building.
Air Supply Requirements Guide
for Max-E-Therm Heaters
Section 2. Installation
Table 8.
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