PLATINUM
WATER HEATER
10
PV500-37C 06/12
7. Testing for leaks - All joints in the vent system must be air and water tight. After the vent is assembled, close
the end of the vent with a taped plastic bag or some other temporary closure. With the gas supply turned off,
energize the combustion blower to apply air pressure to the vent system. Spray each joint and vent
connection with commercially available leak detection liquid to confirm no air is escaping from any point.
Repair any leaks and retest. After testing is complete, de-energize the combustion blower, wipe clean the
leak detection liquid and
REMOVE the temporary vent closure.
8. Attach to the outdoor end of the vent the required UL listed vent termination supplied with the PLATINUM
water heater. This termination is required for proper operation and no substitution is allowed.
5.5
Horizontal and Vertical Venting Through a Wall or Roof
Vent terminal locations, clearances, warnings and requirements stated in this manual apply, whether combustion
air comes from the room or is ducted from outdoors.
1. The solid PVC vent pipe (solid CPVC required for models with “SANI” in the model number) must be sealed
to the wall or roof at the point where it passes through the wall or roof, to prevent rain, insects or flue
products from entering the living space.
2. The vent must be terminated with the UL-listed vent termination provided by PVI.
3. The vent terminal must have a minimum clearance of 4 feet (1.22 m) horizontally from, and in no case be
located above or below, unless a 4 foot (1.22 m) horizontal distance is maintained from electric meters, gas
meters, regulators and relief equipment.
4. The vent cap shall terminate at least 3 feet (0.91 m) above any forced air inlet within 10 feet (3.05 m).
5. The vent shall terminate at least 4 feet (1.22 m) below, 4 feet (1.22 m) horizontally from or 1 foot (0.3 m)
above any door, window or building air inlet to the building.
6. The vent system shall terminate at least 1 foot (0.3 m) above grade and at least 1 foot (0.3m) above possible
snow accumulation levels and shall terminate at least 7 feet (2.13 m) above grade when located adjacent to
public walkways or gathering areas.
7. To avoid a blocked flue condition, keep the vent cap clear of snow, ice, leaves, debris, etc.
8. The vent must not exit over a public walkway, near soffit vents or crawl space vents or other areas where
condensate or vapor could create a nuisance or hazard or cause property or could be detrimental to the
operation of regulators, relief valves or other equipment.
9. A horizontal vent must extend one foot beyond the wall.
10. A horizontal vent terminal must not be installed closer than 3 feet (0.91m) from an inside corner of an L-
shaped structure.
11. A vertical vent should exhaust outside the building at least 2 feet (0.61 m) above the highest point of the roof
within a 10-foot (3.05 m)
radius of the termination.
12. The vertical termination must be a minimum of 3 feet (0.91 m) above the point of exit. A vertical termination
less than 10 feet (0.91 m) from a parapet wall must be a minimum of 2 feet (0.61 m) higher than the parapet
wall.
13. Follow all requirements in the General “Venting” section of this manual and other instructions and markings
for venting flue products to the outdoors, obtaining adequate combustion and ventilation air and general
installation instructions.
