Rev. A 9/2016
ETi 400
High Efficiency Pool and Spa Heater Installation and User’s Guide
23
OUTDOOR HEATER INSTALLATION
The heater is designed and certified for outdoor installation using the 2 ft (61 cm) long vent pipe stack.
WARNING
Risk of explosion if a unit burning propane gas is installed in a pit or other low spot.
Propane is heavier than air. Do not
install the heater using propane in pits or other locations where gas might collect. Consult your local building code officials to
determine installation requirements and specific installation restrictions of the heater relative to propane storage tanks and filling
equipment. Installation must meet the requirements for the Standard for the Storage and Handling of Liquid Petroleum Gases,
ANSI/NFPA 58 (latest edition) in the U.S., or CAN/CSA B149.2 (latest edition) in Canada.
Consult local codes and fire protection
authorities about specific installation restrictions.
The heater is designed for outdoor operation in
non-freezing conditions only
. During freezing conditions the condensate
drain line and trap may freeze, causing the heater to shut down due to a blocked condensate drain. Also, the heater
condensate system components may be damaged by the ice forming on the condensate drain line and trap. If the heater is
installed in freezing climates for seasonal use, winterize the heater to avoid freeze damage. See Winterizing Instructions
on page 53. Locate the heater on a level surface in an open area that is protected from drainage or run-off. Install the
heater in an area where leaves or other debris will not collect on or around the heater. To avoid damage to the electronic
components in the heater, take care to prevent prolonged exposure to driving sources of water (such as lawn sprinklers,
heavy roof runoff, hoses, etc.). Avoid operation in persistent, extreme, moist or salty environments.
(U.S. and Canada)
VENTING GUIDELINES
OUTDOOR INSTALLATION
Chec
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uilding codes
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Force
Air Inlet
Property Line
4'
4'
4'
3'
ROOF OVERHANG
Building
6 in
From window or door
Must be at least 3 ft. above any forced
air inlet located within a 10 ft. radius.
Vent Termination:
Must be located 6 in. away from the building
wall and the following distances away from any building
wall openings, included but not limited to vented eaves,
doors, windows, gravity air inlet:
4 ft. below,
4 ft. horizontally
SIDE VIEW
Building
From building wall
Exhaust Grill
(Vent)
6 in
Roof overhang
90° Elbow
2 ft (61 cm) Pipe
Vent Cap
CAUTION! In an outdoor installation it is important to ensure water is diverted from overhanging
eaves with a proper gutter/drainage system. CAUTION! If the heater is installed directly under a roof
overhang, install a 90° street elbow onto the vent terminal. Install a 2 ft (61 cm) pipe section onto the
elbow. Install the vent cap onto the end of the pipe. Direct the vent cap away from the house or building,
(see illustration below).
Figure 16.
Section 2: Installation Instructions
