Lochinvar EnergyRite ER302 - Manual (Page 15)

Installation & Operation Manual
2
General venting
(continued)
15
The outdoor pool heater must not be installed in an area
that is enclosed by walls or a fence that will block free wind
movement around the pool heater. Free movement of wind
around the outdoor unit is required to carry away the flue
products and provide combustion air. The flue
outlet/combustion air inlet cap of an outdoor pool heater
must not be installed closer than 10 feet from an inside
corner of an L-shaped structure. Walls or enclosed fencing
may cause eddy currents which can recirculate the flue
products into the combustion air inlet. Recirculation of
flue products may cause operational problems, bad
combustion or non-warrantable damage to controls.
Do not install the pool heater with outdoor venting under a
deck.
Do not install an outdoor pool heater in a well, stairwell,
alcove, courtyard, or other recessed area.
The outdoor unit must be located 4 feet below and 4 feet
horizontally from any window, door, walkway, or gravity air
intake.
The combustion air inlet of the outdoor cap must be
located at least 1 foot above grade and above normal snow
levels. The pool heater must be at least 10 feet away from
any forced air inlet.
The pool heater must be at least 3 feet 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.
Do not locate the pool heater so that water from sprinklers
may spray directly on the unit. Water may damage controls
or other electrical components.
Multiple unit outdoor pool heater installations require a
minimum of 4 feet clearance between the vent cap and air
inlet of adjacent heaters to prevent recirculation of flue
products.
Flue gas condensate can freeze on exterior walls or on the
vent cap of a pool heater operated in the winter months.
Frozen condensate on the vent cap can result in a blocked
flue condition. Some discoloration to exterior building or
unit surfaces can be expected. Adjacent brick or masonry
surfaces should be protected with a rust resistant sheet
metal plate.
Figure 2-8_Outdoor Vent Cap (Outside View)
Figure 2-9_Outdoor Vent Cap Installed on Unit
The outdoor vent cap
An outdoor vent cap is furnished by the manufacturer in
accordance with CSA International requirements. An outdoor
vent cap kit is mounted on the pool heater as shipped from the
factory. The kit includes the flue outlet/combustion air inlet
assembly and gasket.
ƽ CAUTION Pool heaters which are shut down or will not
operate may experience freezing due to
convective air flow through the vent cap
installed on the unit. Proper freeze
protection must be provided. A pool heater
that is not in use in the winter season must
be properly drained and winterized. See the
Winterizing section of the EnergyRite Service
Manual.