Vent Installation - Indoor Installation (Us And Canada); Garage Or Utility Room Installation (Vent Installtion - Indoor Installation Us And Canada); Final Installation Check - Pentair ETi 400 NA ASME Guía De Instalación Y De Usuario

Section 2: Installation Instructions
36
GARAGE OR UTILITY ROOM INSTALLATION
Risk of fire and explosion if installed at floor level in an automotive garage or near gasoline or flammable liquid storage.
Gasoline fumes are heavier than air and will settle to floor level in closed spaces. Gasoline fumes and spilled gasoline or other
volatile liquids (such as some paints and varnishes) will travel across the floor and can be ignited by a gas appliance.
In any utility room or residential garage installation, install the heater with the base at least 18 inches (.5M) above the
floor, see Figure 28. In a garage, install a rail or wall to protect the heater from physical damage by a moving vehicle.
NOTICE: A Propane (LPG) fired heater must not be installed in a garage in Massachusetts, by order of the Massachusetts State
Fire Marshal. For more information, call the Massachusetts State Fire Marshal's office.
VENT INSTALLATION –
INSTALLATION (U.S. AND CANADA)

FINAL INSTALLATION CHECK

After heater installation, check and verify the following:
• Check that horizontal vent pipe runs slope uniformly at least 1/4" per foot (2 cm per meter) upward from the
heater to the vent terminal. No sags, no dips, no high or low spots.
• Check that vent is supported at elbows, tees, and horizontal and vertical runs according to manufacturer's
instructions and code requirements.
• Check that vent supports and wall and ceiling penetrations allow free movements up, down, and sideways
without causing any strains on the heater or vent body.
• Check for at least six inch (15 cm) free air clearance between the heater vent pipe and combustible
materials.
• There should be at least 30 in of clearance in front of the heater to provide adequate service space and
access to the operator control panel, electrical controls and other operating components.
• Check that all joints are completely together and sealed.
• In Florida, building codes require that the heater be anchored to the equipment pad or platform to withstand
high wind pressures created during hurricanes. A hold down bracket kit is designed to hold the unit to
the equipment pad in high wind conditions. Installation of the anchor clamps are recommended in all
installations and are required in Florida, (See Florida Building Code 301.13). For hurricane mounting bolts
and clamps, purchase Bolt Down Kit P/N 476004.
ETi 400 High Efficiency Pool and Spa Heater Installation and User's Guide
WARNING
INDOOR
Leave 6 in. (15 cm)
of clear space between
heater and combustible
surface.
Figure 28.
18 in.
Rev. C 4/2017