Lochinvar EnergyRite ER302 - Manual (Page 30)

30
Installation & Operation Manual
5
Sidewall venting
Installation of an E-Rite Sidewall Vent System requires that each
pool heater in a multiple unit installation have a dedicated flue
pipe and sidewall vent cap. The flue discharge or air inlet from
multiple pool heaters installed with the E-Rite Sidewall Vent
System may not be combined to a single common vent.
ƽ DANGER Failure to properly seal all joints and seams as
required in the flue piping may result in flue
gas recirculation, spillage of flue products,
and carbon monoxide emissions causing
severe personal injury or death.
E-Rite sidewall vent termination
The sidewall vent cap shall terminate at least 3 feet above any
forced air inlet within 10 feet.
The sidewall vent shall terminate at least 4 feet below, 4 feet
horizontally from or 1 foot above any door, window, or gravity
air inlet to the building.
Do not terminate the sidewall vent in a window well, stairwell,
alcove courtyard or other recessed area. The sidewall vent can
not terminate below grade.
The sidewall vent system shall terminate at least 1 foot above
grade, above normal snow levels and at least 7 feet above grade
when located adjacent to public walkways. The sidewall vent
shall not terminate directly above a public walkway.
The sidewall vent terminal shall not be installed closer than
10 feet from an inside corner of an L-shaped structure.
The sidewall vent cap should have a minimum clearance of 4 feet
horizontally from and in no case above or below, unless a 4 foot
horizontal distance is maintained from electric meters, gas
meters, regulators and relief equipment.
Flue gas condensate can freeze on exterior walls or on the vent
cap. Frozen condensate on the vent cap can result in a blocked
flue condition. Some discoloration to exterior building surfaces
can be expected. Adjacent brick or masonry surfaces should be
protected with a rust resistant sheet metal plate.
Combustion air inlet termination
Combustion air supply pipes can not be combined into a single
pipe for multiple unit installations.
To help prevent recirculation of flue products:
- The combustion air inlet cap must not be installed above
the flue outlet cap.
- The combustion air inlet cap must be installed horizontally or
below the flue outlet and must maintain a minimum 3 foot
radius clearance from the flue outlet cap.
- The combustion air inlet cap and vent cap for flue outlet
must be located on the same sidewall and in the same
pressure zone.
- The combustion air inlet cap must not be installed closer
than 10 feet from an inside corner of an L-shaped structure.
- The combustion air inlet cap must be installed at least one
foot above ground level and above normal snow levels.
When an E-Rite Sidewall Vent System is disconnected for any
reason, the flue must be reassembled and resealed according to
the vent manufacturer’s instructions to ensure that flue products
will not be discharged into the equipment room or other
occupied spaces in the building. The air inlet pipe must also be
resealed to ensure that combustion air will be free of
contaminants and supplied in proper volume.
The connection from the vent to the vent termination outside
the building must be made with one of the specified vent
materials and must be direct as possible with no reduction in
diameter. The vent accessories not otherwise provided, such as
firestop spacers, thimbles, caps, etc., must be from the same vent
material manufacturer and installed in accordance with the
manufacturer’s listing. The vent connection through the
sidewall must provide correct spacing to combustible surfaces.
The vent pipe connection to the sidewall vent cap must have a
gastight seal to prevent the leakage of flue products.
Follow all requirements in the General Venting and Venting of
Flue Products sections for venting flue products to the outdoors.
See Combustion and Ventilation Air Requirements in the
Determine Pool Heater Location section to ensure that adequate
combustion and ventilation air is supplied to the equipment
room. All other general installation requirements must be
followed.