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All installations and services must be performed by qualified service personnel.
II. STARTING THE UNIT
A. INITIAL START UP:
1. Check all wiring for loose connections and proper hook up.
2. Leak test gas piping connections.
3. Check tubing to the pressure switch to make sure it is pushed firmly onto the pressure tap.
4. Check flue pipe, chimney, and all connections for tightness and to make sure there is no blockage.
5. Make sure air filters are in place.
OPERATING INSTRUCTIONS:
WARNING: For initial start-up of the furnace after installation, it may be necessary to purge the air out of the gas
line. This should be done by qualified service personnel. If excessive gas escapes when purging the supply at the
union, allow the area to ventilate for at least 15 minutes before starting the furnace. LP gas is especially hazardous
because the specific gravity of LP gas allows it to accumulate at floor level at a hazardous concentration.
WARNING: Heat exchanger paint will burn off on initial firing creating an odor. To prevent this odor from
occurring more than once, it is suggested that:
1. A window(s) be opened.
2. The thermostat set at highest setting.
3. The furnace remains running at conditions 1 & 2 for 30 minutes or until the odor has dissipated.
B. BURNER COMBUSTION:
Obtain the following recommended values when setting the burner combustion:
CO 2 NATURAL GAS - MIN. 8.5%, MAX. 10.5% WITH NO MORE THAN 50 *PPM OF CO.
CO 2 LPG - MIN. 10.5% MAX. 12.0% WITH NO MORE THAN 50 *PPM OF CO.
CO ALL GASES - ZERO TO A MAX. 50 *PPM.
After final adjustments are made, lock settings to prevent tampering.
*PPM = PARTS PER MILLION
50 PPM = .005% = 1/200 OF 1%
NOTICE: See burner manufacturer instructions for troubleshooting.
C. ADJUSTMENT OF BTU INPUT RATE:
The orifice for this furnace was sized: 1. For natural gas having a heating value of 1025 BTU per cubic foot and a
specific gravity of .60 or 2. For liquified propane gas with a heating value of 2500 BTU per cubic foot and a specific
gravity of 1.53. The information plate inside the furnace vestibule will specify which gas your furnace is orificed for.
If the furnace is installed at an altitude that is more than 2,000 feet above sea level, it is mandatory that the input to
the burner be reduced 4.0% for every 1,000 feet that it is above sea level. If the furnace is installed at an elevation of
5,000 feet, its input must be reduced 20.0%. Example: a furnace rated at 100,000 BTU at sea level must be reduced
to a firing rate of 80,000 (100,000 x .80 = 80,000) at an elevation of 5,000 feet. If the furnace is installed at an
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