13 - LPG INSTRUCTIONS
This instruction must be retained adjacent to the boiler as they contain important details about the conversion made.
WARNING: This conversion kit shall be installed by a qualified service agency in accordance with the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction. If the information in this instructions is not followed exactly, a fire, an explosion or production of carbon monoxide may result causing property damage, personal injury or loss of life. The qualified service agency is responsible for the proper installation of this kit.The installation is not proper and complete until the operation of the converted appliance is checked as specified in the
manufacturer’s instructions supplied with the kit.
The XPak boiler is factory supplied to use natural gas. The boiler can use also LPG gas by installing a kit (supplied with every unit). The conversion to LPG is possible by:
1.Install the new gas injector
2.Modify the fan speed according the data in the table.
The kit is composed by:
1.Injector black coating (to be recognized from the natural gas that is not black coated)
2.Relative gas sticker (red color) to be attached under the boiler instead of the natural gas sticker (yellow color factory installed)
3.Instruction of the kit
4.LPG label to be affixed on the boiler casing and completed in by the organization making this conversion.
Operations for conversion
1.Switch off the boiler
2.Change the gas injector
3.Apply the red sticker
4.Switch on the boiler
5.Set the new fan speed
6.Fill the final part of this instruction
GAS SUPPLY
The gas supply must be connected to the boiler by a competent LPG installer and must be of sufficient size to supply the boiler at its maximum output. An existing supply must be checked to ensure that it is of adequate size to deal with the maximum rated input of this and any other appliances that it serves.
GAS SUPPLY INSTALLATION
The entire installation including the meter must be purged and checked for gas tightness.
CONVERTING THE BOILER GAS TYPE
To convert the boiler to another gas type it is necessary to change the gas injector, adjust the fan speed and the gas valve.
NOTICE: The gas valve sticker “WARNING: VALVE IS NOT FIELD SERVICEABLE” means the valve can be adjusted but not disassembled.
LPG INSTRUCTIONS
PROPANE GAS:
CAUTION: The gas supply shall be shut off prior to disconnecting the electrical power, before proceding with the conversion.
Installation Codes
Installations must follow these codes:
•Local, state, provincial, and national codes, laws, regulations and ordinances
•National Fuel Gas Code, ANSI Z223.1/NFPA 54 – latest edition (NFGC)
•For Canada only: CAN/CSA B149 Natural Gas and Propane Installation Code and CSA C22.1 C.E.C. Part 1 (C22.1)
WARNING: XPak boilers are shipped ready to fire natural gas ONLY. You must install the propane orifice and regulate the gas valve if the boiler will be connected to propane. Failure to comply could result in severe personal injury, death or substantial property damage.
Pipe sizing for natural gas
Contact gas supplier to size pipes, tanks and 100% lockup gas pressure regulator.
Propane supply pressure requirements
1.Adjust propane supply regulator provided by gas supplier for 13" w.c. maximum pressure.
2.Pressure required at gas valve inlet pressure port: Maximum: 13" w.c. with no flow (lockup) or 8" w.c. minimum with boiler operating
CHANGE THE GAS INJECTOR Slacken and unscrew upper gas valve pipe; locate and remove the two screws shown as (A). Locate and remove the natural gas injector
(B)inside the pipe, insert the LPG injector (black coating). Replace in the reverse order. Check and adjust burner pressure settings.
WARNING:
A gas tightness check must be carried out if any gas carryng components have been removed, replaced or disturbed.
Fig. 1
CHECKINGTHE RELATIONSHIP OF THE IGNITER TO MAIN BURNER
Remove the burner assembly as indicated in the boiler manual “Servicing instructions”.
Check the distance between the burner and the two electrodes according the distances indicated in Fig. 1A. Replace in the reverse order.
Fig. 1A
B
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