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shall be available for the final inspection of the furnace prior
to occupancy.
• This furnace is designed to operate with return air temperatures
in ranges normally found in occupied residences, including
setbacks. Minimum continuous return temperature must not
be below 60° F (15° C). Occasionally a temporary return
temperature of 55° F (12° C) is acceptable. However, operation
with a return temperature below 55° F (12° C) is not allowed.
• The installing contractor and / or builder must:
— Comply with the requirements of this section.
— Complete the attached Use of Furnace During
Construction checklist.
— Email copy of completed Use of Furnace During
Construction checklist to [email protected]
— Leave original completed Use of Furnace During
Construction checklist with furnace.
— Disclose use of the furnace during construction to the
homeowner in advance of the sale.
COMBUSTION AIR & VENTING
REQUIREMENTS
WARNING:
CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below
for each appliance connected to the venting
system being placed into operation could
result in carbon monoxide poisoning or death.
The following steps shall be followed with
each individual appliance connected to the
venting system being placed in operation,
while all other appliances connected to the
venting system are not in operation:
1. Seal any unused openings in the venting
system.
2. Inspect the venting system for proper size and
horizontal pitch, as required in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 or the CSA
B149.1, Natural Gas and Propane Installation
Codes and these instructions. Determine that
there is no blockage or restriction, leakage,
corrosion and other deficiencies which could
cause an unsafe condition.
3. As far as practical, close all building doors
and windows and all doors between the space
in which the appliance(s) connected to the
venting system are located and other spaces
of the building.
4. Close fireplace dampers.
5. Turn on clothes dryers and any appliance
not connected to the venting system. Turn on
any exhaust fans, such as range hoods and
bathroom exhausts, so they are operating at
maximum speed. Do not operate a summer
exhaust fan.
6. Follow the lighting instructions. Place the
appliance being inspected into operation.
Adjust the thermostat so appliance is operating
continuously.
7. Test for spillage from draft hood equipped
appliances at the draft hood relief opening
after 5 minutes of main burner operation. Use
the flame of a match or candle.
8. If improper venting is observed during any of
the above tests, the venting system must be
corrected in accordance with the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 and/or CSA
B149.1, Natural Gas and Propane Installation
Codes.
9. After it has been determined that each
appliance connected to the venting system
properly vents when tested as outlined above,
return doors, windows, exhaust fans, fireplace
dampers and any other gas-fired burning
appliance to their previous conditions of use.
