Innovation Water Heaters
– Edge [i] Controller
Venting and Combustion Air Design Guide
TAG-0090_A
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GF-5056
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2/20/2020
Technical Support
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(800) 526-0288
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Mon-Fri, 8 am - 5 pm EST Page 4 of 39
WARNING!
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FOR CORRECT INSTALLATION OF VENT SYSTEM, READ ALL OF THESE
INSTRUCTIONS AND REFER TO THE VENT PIPE MANUFACTURER’S
INSTRUCTIONS.
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FAILURE TO USE THE VENTING SYSTEM DESCRIBED IN THIS DOCUMENT WILL
VOID THE MANUFACTURER’S WARRANTY AND MAY RESULT IN RAPID
DETERIORATION OF THE VENTING SYSTEM, CREATING A POTENTIAL HEALTH
HAZARD.
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FAULTY VENT INSTALLATION CAN ALLOW TOXIC FUMES TO BE RELEASED INTO
LIVING AREAS. THIS MAY CAUSE SERIOUS BODILY INJURY OR PROPERTY
DAMAGE. IMPROPER ASSEMBLY MAY ALSO AFFECT VENT PERFORMANCE.
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INSTALL SEPARATE VENTS FOR FORCED EXHAUST APPLIANCES AND NATURAL
DRAFT APPLIANCES. A COMMON VENT BETWEEN NATURAL DRAFT AND FORCED
EXHAUST APPLIANCES MAY CAUSE TOXIC GASES TO EXHAUST THROUGH THE
NATURAL DRAFT APPLIANCE RATHER THAN TO OUTSIDE AIR. BREATHING
EXHAUST GASES WILL CAUSE SERIOUS PERSONAL INJURY OR DEATH.
1.3.
Gas Vent Categories
Innovation-Edge water heaters are approved for a Category II and Category IV vent configuration
as well as for ducted combustion air installations.
CAUTION!
Provisions for combustion and ventilation air in accordance with Section 5.3, (Air for
Combustion and Ventilation) of the National Fuel Gas Code - ANSI Z223.1, or Sections 7.2,
7.3, or 7.4 of CAN/CSA B149.1, Installation Codes, or applicable provisions of the local building
codes.
Federal Codes have categorized gas appliances by the vented flue gas pressure and temperature
as follows:
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Category I
, being a gas appliance that operates with a non-positive vent (or natural drafted
vent) connector with a flue gas pressure and temperature at least 140°F (60°C) above its
dew point.
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Category II
, being a gas appliance that operates with a non-positive vent (or natural drafted
vent) connector with a flue gas pressure and temperature less than 140°F (60°C) above its
dew point.
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Category III
, being a gas appliance that operates with a positive vent (fan forced vent)
connector with a flue gas pressure and temperature at least 140°F (60°C) above its dew
point.
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Category IV
, being a gas appliance that operates with a positive vent (fan forced vent)
connector with a flue gas pressure and temperature less than 140°F (60°C) above its dew
point.
Direct Vent
, a gas appliance is constructed and installed so that all air for combustion is derived
directly from the outdoors and all flue gases are discharged to the outdoors.
