Outdoor Installation Venting - Lochinvar GAS HEATER FOR COMMERICAL POOL Installation And Service Manual

Installation and Service Manual
Vertical Combustion Air Inlet Clearances
You must locate the air inlet termination elbow at least 12"
(30cm) above the roof or above normal snow levels.
If the air inlet cap is within a 10 foot (3.05m) radius of the flue
outlet, the point of termination for the combustion air inlet cap
must be at least 3 feet (0.91m) below the point of flue gas
termination (vent cap).
Do not install the combustion air inlet cap closer than 10 feet
(3.05m) from an inside corner of an L-shaped structure.
Horizontal Combustion Air Inlet Clearances
You must locate the horizontal air inlet termination point at
least 12" (30cm) above grade and above normal snow levels.
If the air inlet cap is within a 10 foot (3.05m) radius of the flue
outlet, the point of termination for the combustion air inlet cap
must be at least 3 feet (0.91m) horizontally and 12 inches
(30cm) below the point of flue gas termination (vent cap). Do
not install the horizontal combustion air inlet cap above the
flue outlet.
Do not install the combustion air inlet cap closer than 10 feet
(3.05m) from an inside corner of an L-shaped structure.
Multiple Sidewall Direct Vent Installations
The combustion air inlet caps for multiple pool heater
installations must maintain the same minimum clearance from
the closest flue vent cap as specified in single pool heater
installations. You may install multiple flue outlet caps side-by-
side and multiple combustion air inlet caps side-by-side, but
the air inlet must always be at least 3 feet (0.91m) horizontally
and 12 inches (30cm) below the closest flue outlet. Do not
install combustion air inlet caps above the flue outlets.
Maintain all clearances and installation requirements for
multiple pool heater installations.

6. Outdoor Installation Venting

IMPORTANT: Before installing a venting system,
follow all venting clearances and requirements
found in the Venting, General Information
section, page 10.
These pool heaters are self-venting and can be used outdoors
when installed with the optional outdoor cap. This cap mounts
directly to the top of the pool heater and covers the flue outlet
and combustion air inlet openings. No additional vent piping is
required.
WARNING: Only install outdoor models
outdoors and only use the vent cap supplied by
the pool heater manufacturer. Personal injury or
product damage may result if any other cap is
used or if an outdoor model is used indoors.
Properly install all covers, doors and jacket
panels to ensure proper operation and to prevent
a hazardous condition.
Combustion air supply must be free of contaminants (see
Combustion and Ventilation Air, page 7). To prevent
recirculation of the flue products into the combustion air inlet,
follow all instructions in this section.
Outdoor Vent/Air Inlet Location
Keep venting areas free of obstructions. Keep area clean and
free of combustible and flammable materials. Maintain a
minimum clearance of 3" (76mm) to combustible surfaces and
a minimum of 3" (76mm) clearance to the air inlet. To avoid a
blocked air inlet or blocked flue condition, keep the outdoor
cap air inlet, flue outlet and drain slot clear of snow, ice, leaves,
debris, etc.
Do not install outdoor models directly on the ground. You must
install the outdoor pool heater on a concrete, brick, block, or
other non-combustible pad.
Do not locate the pool heater so that high winds can deflect off
of adjacent walls, buildings or shrubbery causing recirculation.
Recirculation of flue products may cause operational
problems, bad combustion or damage to controls. Locate unit
at least 3 feet (0.91m) from any wall or vertical surface to
prevent wind conditions from affecting performance.
Multiple pool heater outdoor installations require 48" (1.22m)
clearance between each vent cap. Locate the outdoor cap at
least 48" (1.22m) below and 48" (1.22m) horizontally from
any window, door, walkway or gravity air intake.
Locate the pool heater at least 10 feet (3.05m) away from any
forced air inlet.
Locate pool heater at least 3 feet (0.91m) outside any
overhang.
Clearances around outdoor installations can change with time.
Do not allow the growth of trees, shrubs or other plants to
obstruct the proper operation of the outdoor vent system.
Do not install in locations where rain from building runoff
drains will spill onto the pool heater.
Outdoor Vent Cap Kit
25
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