Section 4 — CFC Commissioning
Part No. 750-263 4-25
K. PROCEDURES FOR LP (PROPANE) GAS
• Minimum LP gas pressure required is 11" W.C. at 700' ASL.
Pressure correction required for high altitudes.
• Maximum gas pressure rating of the gas train is 1 psig.
Notice
When changing fuels, ensure the CB Falcon has been configured with
the proper fan speed settings for the fuel being used. See Ta b le 4-1 .
1. Single fuel units
1. Close upstream manual gas shut-off valve. Disconnect power
from the boiler.
2. Install orifice gasket provided by replacing the existing venturi-
gas train connection gasket with appropriate orifice (see Tabl e
4-4). Install the vortex breaker (CFC-2500 only) between
venturi and blower with the main body of the vortex breaker in
the vertical position. Ensure gas train-venturi connection is
secure and gas tight. Ensure venturi-blower connection is tight.
Figure 4-10 LP Gas Setup - Single Fuel
3. Connect power to the boiler. Power up the controls.
4. Access boiler control Configuration menu. Press <Login>.
Enter service level password: 9220. Press <OK>.
5. Select Modulation configuration. Adjust CH and DHW maximum
modulation rates according to Ta ble 4- 1 . Adjust minimum
!
Warning
Ensure that proper LP gas piping standards and practices are
followed and that the LP gas is properly vaporized. Failure to do so
can result in serious injury or damage to the boiler.
CFC-1800 & CFC-2500 ONLY
CFC-2500 ONLY
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