Leak Testing; Purging Gas Lines; Conversions - Wolf Steel Condo Pack Installation And Operating Instructions Manual

4.13 LEAK TESTING

All new gas piping installations should be pressure tested as specifi ed by CAN/CSA-B149.1 & 2, or NFPA 54
ANSI Z223.1 or ANSI/NFPA 58, "Standard for the Storage and Handling of Liquefi ed Petroleum Gases."
Gas piping that has not been pressure tested, from the manual shut-off valve to the furnace gas valve for
example, should be leak tested using an electronic combustible gas detector, a commercially prepared leak
detector, or other locally approved method.

4.14 PURGING GAS LINES

Both, the unit and its manual gas shut-off valve must be disconnected from the gas supply piping system
during any pressure testing of that system, if test pressure exceeds 1/2 psi (3.5 kPa).
NEVER USE A MATCH, TAPER, CIGARETTE LIGHTER, FLAME OR ANY OTHER
USE A COMMERCIALLY AVAILABLE SOAP SOLUTION MADE SPECIFICALLY
FOR THE DETECTION OF LEAKS TO CHECK ALL CONNECTIONS.
FAILURE TO ADHERE TO THIS WARNING CAN CAUSE A FIRE OR EXPLOSION
RESULTING IN PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF LIFE.

4.15 CONVERSIONS

4.15.1 High altitude conversion
In Canada, unit is certified up to 4500 feet with no de-rate for Natural gas only. LP (propane) requires a 10%
reduction of input capacity for elevating from 2000 - 4500 feet (610m - 1372m).
In the United States, the modifications for high altitude are based on a 4% reduction of input capacity for every
1000 feet (305m) above 2000 feet (610m) above sea level. Consult with local fuel suppliers or authorities to
determine local regulations or customs.
4.15.2 Natural to LP Gas Conversion
THIS PROCEDURE DOES NOT APPLY TO 15K BTU/h UNITS (CCGM015A).
This unit is manufactured as a natural gas appliance that may be converted to LP gas through the use of
the Conversion Kit (W370-0040). This kit contains the conversion kit instructions, orifices needed for all
models, the regulator spring for the gas valve, and a label to affix adjacent to the appliance rating plate to alert
subsequent service technicians of the conversion. The parts removed for this conversion must remain with the
furnace for any future conversion back to natural gas.
4.15.3 Checking the Inlet Gas Pressure
WHITE-RODGERS 36J24-214 / 36J24-218P1 SINGLE STAGE GAS VALVE
1� Turn off the gas and electrical supply to the furnace.
2� Back off inlet pressure test screw (inlet pressure boss, see FIGURE 28 & 29) counterclockwise out one
turn maximum, with a 3/32" Allen wrench. Attach a hose and calibrated U-tube or digital manometer to the
inlet pressure boss. Hose should overlap boss 3/8". The manometer must have a scale range of at least 0"
to 15" of water column.
3� Turn ON the gas and electrical supply and operate the furnace and all other gas consuming appliances on
the same gas supply line. Using a leak detection solution, check for leaks around the gas valve/manifold
connection and the burner orifi ces. Repair any leaks before continuing.
4� Measure furnace gas inlet pressure with burners fi ring. Inlet pressure must be within the range specifi ed on
the furnace rating plate. 5-7" w.c. (Natural Gas) or 11-13" w.c. (LP).
If the inlet pressure differs from the rating plate, check the gas piping size and/or consult with local gas
utility. If working on a natural gas system, contact the gas utility. They may insist on any service regulator
adjustments being made by their own staff.
5. Turn off gas and electrical supply to furnace, remove the manometer hose from the inlet pressure tap boss,
and tighten the inlet pressure tap screw using the 3/32" Allen wrench. (Clockwise, 7 in-lb minimum).
6� Turn on the gas supply and electrical power to the furnace.
WARNING
!
FIRE OR EXPLOSION HAZARD!
NEVER TEST FOR GAS LEAKS WITH AN OPEN FLAME.
IGNITION SOURCE TO CHECK FOR LEAKS IN A GAS LINE.
!
NOTE
31
H17.4
W415-1307 / B / 03.31.2017
IOM