PH
-SERIES
ii
WHEN AN EXISTING CATEGORY I HEATER IS REMOVED OR
REPLACED, THE ORGINAL VENTING SYSTEM MAY NO LONGER
BE SIZED TO PROPERLY VENT THE ATTACHED APPLIANCES.
The effects of an improperly sized venting system can
include but not limited to: the formation of
condensate, leakage, spillage etc. The following test
procedure is required:
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 for each appliance connected to
the venting system being placed into 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
Natural Gas and Propane Installation Code, CSA B149.1 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 Natural Gas and
Propane Installation Code, CSA B149.1.
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.
