Lochinvar EnergyRite ER202 Installation & Operation Manual page 29

5
Sidewall venting
Sealing of venting materials
The AL29-4C vent materials must be installed and sealed
per the vent manufacturer's installation instructions.
The E-Rite Sidewall Vent System requires installation of
a separate pipe to supply combustion air from outdoors
directly to the pool heater. This pipe is referred to as the
combustion air inlet pipe, with one end connecting to
the air inlet collar at the rear of the cabinet the other end
connecting to the air inlet cap at the wall. The pipe must be
either a single or double-wall metal pipe that has all joints
and connections sealed with tape or suitable sealant. For
multiple pool heater installations, each pool heater must
have combustion air provided independently by a dedicated
air inlet pipe. Combustion air supplied from outdoors must
be free of contaminants (see Combustion and Ventilation
Air Requirements in the Determine Pool Heater Location
section).
If Type "B" double-wall vent material or single-wall
galvanized vent pipe material is used for the air inlet
pipe, follow the sealing instructions of the assembled pipe
sections as follows:
1. Seal all joints and seams of the air inlet pipe using
either aluminum foil duct tape meeting UL Standard
723 or 181A-P or a high quality UL listed silicone
sealant such as those manufactured by Dow Corning or
General Electric.
2. Do not install seams of vent pipe on the bottom of
horizontal runs.
3. Secure all joints with a minimum of three sheet metal
screws or pop rivets. Apply aluminum foil duct tape or
silicone sealant to all screws or rivets installed in the
vent pipe.
4. Ensure that the air inlet pipes are properly supported.
The use of double-wall vent material
NOTICE
for the combustion air inlet pipe is
recommended when the pool heater is
operated in cold climates to prevent the
condensation of airborne moisture in
the incoming combustion air.
Using other vent or air intake materials,
⚠ CAUTION
failure to properly seal all seams and
joints or failure to follow vent pipe
installation instructions can result in
personal injury, death, or property
damage. Improper sealing of venting
materials will void the warranty and
certification of the pool heater.
(continued)
Length of flue pipe and air inlet pipe for an
e-rite sidewall vent system
The maximum total equivalent length of the flue or the
combustion air inlet pipe must not exceed a maximum of 20
equivalent feet in length. Subtract 5 feet for each elbow in
the flue pipe or the air intake system. The transition adapter
mounted to the flue outlet on the pool heater does not count as
one of the elbows in the venting system. Do not exceed limits
for the combustion air inlet and flue outlet piping lengths.
Drain tee installation
A drain tee must be installed in the vent pipe to collect and
dispose of any condensate that may occur in the vent system.
The drain tee must be installed as the first fitting after the
horizontal ell on the top of the unit. See the typical vent
installation drawings. Plastic drain tubing, sized per the vent
manufacturer's instructions, shall be provided as a drain line
from the tee. The drain tubing must have a trap provided by
a 3" diameter circular trap loop in the drain tubing. Prime
the trap loop by pouring a small quantity of water into the
drain hose before assembly to the vent. Secure the trap loop
in position with nylon wire ties. Use caution not to collapse or
restrict the condensate drain line with the nylon wire ties. The
condensate drain must be routed to a suitable drain for disposal
of condensate that may occur in the direct vent system. Refer to
the condensate drain installation instructions as supplied by the
manufacturer of the vent material.
Figure 5-7_Drain Tee Installation
Installation & Operation Manual
29