PREPARATION
8
D. RESIDENTIAL GARAGE INSTALLATION
Precautions
Take the following special precautions when installing the unit in a residential garage. If the heater is
located in a residential garage, it must be, per ANSI Z223.1, paragraph 5.1.9:
• Place the Phoenix Evolution with a minimum of 18 inches above the floor of the garage to the
bottom of the heater to ensure the burner and ignition devices will be no less than 18 inches above
the floor.
• Locate or protect the unit so it cannot be damaged by a moving vehicle.
E. EXHAUST VENT AND INTAKE AIR VENT
The Phoenix Evolution requires a special vent system, designed for pressurized venting. The
Phoenix Evolution is rated ANSI Z21.10.3 Category IV (pressurized vent, likely to condense in the
vent).
You must also install air intake piping from outside to the unit flue adaptor. The resultant installation
is categorized as direct vent (sealed combustion). Note: To prevent combustion air contami-
nation see Table 3-2 in this section for examples of areas to avoid when considering
exhaust vent and intake air vent termination.
Intake and exhaust must terminate near each other and may be vented vertically through the roof or
through a side wall. The intake and exhaust venting methods are detailed in the Venting Section. Do
not attempt to install the Phoenix Evolution using any other venting means. Be sure to locate the
Phoenix Evolution so that the air intake and exhaust vent piping can be routed through the building
and properly terminated outdoors. The air intake and exhaust vent piping lengths, routing and termi-
nation method, must all comply with the methods and limits given in the Venting Section Part 8.
F. PREVENT COMBUSTION AIR CONTAMINATION
Install intake air piping for the Phoenix Evolution as described in the Venting Section Part 8. Do not
terminate exhaust in locations that can allow contamination of intake air.
PART 3: PREPARE WATER HEATER LOCATION (CONTINUED)
n
WARNING
You must pipe outside air to the unit air intake. Ensure that the intake air will not contain
any of the contaminants below. Contaminated air will damage the unit, resulting in
possible severe personal injury, death or substantial property damage. Do not pipe intake
air vent near a swimming pool. Avoid areas subject to exhaust fumes from laundry
facilities. These areas will always contain contaminants.