Install Instructions

32
Gas Piping
PROPANE GAS
Pipe Sizing - Propane Gas
Contact the local propane gas supplier for rec-
ommended sizing of piping, tanks and 100%
lockup gas regulator.
Propane Gas Supply Pressure Requirements
1. Adjust the propane supply regulator pro-
vided by the gas supplier for 13”w.c. [32
mbar] maximum pressure
2. Pressure required at the gas valve inlet sup-
ply pressure port:
- Maximum 13”w.c. [32 mbar] at flow or
no flow conditions to the burner
- Minimum 5”w.c. [13 mbar] during flow con-
ditions to the burner. Must be verified during
start up and with all other gas appliances
operating within the gas piping service.
- Maximum gas inlet pressure must not be
excceded and minimum gas inlet pressure
is for the purpose of input adjustment.
DO NOT adjust or attempt to measure gas
valve outlet pressure. The gas valve is fac-
tory-set for the correct outlet pressure.
This setting is suitable for natural gas and
propane and requires no field adjustment.
Attempts by the installer to adjust or mea-
sure the gas valve outlet pressure could
result in damage to the valve, causing
potential severe personal injury, death or
substantial property damage.
Prior to start up, ensure the appliance is
set to fire propane. Check the rating label
for the type of fuel. Check the gas valve
for propane conversion label. If there is a
conflict or doubt on the burner set up,
remove the gas valve and check for the
propane orifice, see Fig. 15. Failure to
ensure proper burner setup could result in
severe personal injury, death or substan-
tial property damage.
Table 3: Propane Gas, Orifice Requirements:
WARNING
WARNING
T
hrottle Screw
Gas Supply Inlet
Pressure Port
Flow direction
Gas Orifice
O-Ring Gasket
Fig. 15 : Gas Orifice Assembly
CHALLENGER
MODEL
Propane
Orifice Size
Orifice
Marking
CC85 0.199” [5.05 mm] 505
CC105 0.199” [5.05 mm] 505
CC125 0.220” [5.60 mm] - 580 -