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120-273 R4

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Note

If converting from Propane to Natural Gas, order the Natural Gas Conversion Parts Kit (IBC Part # P-303B) 

from your authorized IBC Distributor.

Use the Propane Gas conversion parts kit if the fuel source at the site uses Propane and the modulating boiler has been 

set up (factory fire-tested) to operate with Natural Gas. Check the rating plate on the boiler to see which fuel source the 

particular boiler has been set up with.

Using this conversion kit, a qualified technician will need to:

 1.  Perform a fuel conversion.

 2.  Perform a combustion test.

 3.  Fill in the information required on the fuel conversion labels, and affix them to the boiler after the conversion is 

completed.

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 these 
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 boiler will automatically de-rate the maximum input at a rate of approximately 2% per 1,000’ above 4,500’. The gas 

valves zero governor will ensure that the gas:air mixture is not affected at altitude.

Included with the Conversion Kit:

1 x LP Mixer Assembly, 399 G3 - Part # 500-114

3 x Screw, Zinc, M4x12 -  IBC - Part # 150-164

1 x Mixing device O-ring Part # 150-073

1 x Rating Plate Fuel Overlay - Part # 080-242

1 x Gasket, gas valve coupler- IBC - Part # 255-035C1

1 x Gas Valve Conversion Label -  Part # 080-107B

4 x Screw,  SS, M5 x10 -  IBC - Part # 150-076

1 x Installer Identifier Label - Part # 080-244A1

3 x Washer, Flat, SS, M4 -  IBC - Part # 150-099

 

This conversion involves changing the mixing assembly. There is no propane orifice.

SL 40-399 G3 - Fuel Conversion to 

Propane (NG to LP) P-Kit 302B

Содержание SL 40-399 G3

Страница 1: ...owed 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 installa...

Страница 2: ...eft of the long brass protrusion on the front of the gas valve It will have to be adjusted to attain optimum combustion results whenever fuel conversion is undertaken however no mixture adjustment mus...

Страница 3: ...e the O ring and orifice if installed You will need the O ring in Step 8 4 Note the orientation and screw positions and then remove the bolts and venturi mixing device from the fan 5 Remove the ventur...

Страница 4: ...Errors The boiler automatically resets after 60 minutes if no action is taken To perform a combustion test and adjustment 1 Turn off the boiler s gas shut off valve 2 With a small 1 8 or 3 mm flat scr...

Страница 5: ...grammed settings will be restored and the load will operate as before Confirm a smooth ignition sequence 12 Turn off the gas supply at the gas shut off valve 13 Disconnect the power to the boiler 14 D...

Страница 6: ...shut off 4 With a Stop Watch record the number of seconds for the smallest dial to make 1 full revolution 5 CFH 3600 x Dial Size Seconds 6 CFH x 1000 check local Btu content Input Btu s Note For 2 PS...

Страница 7: ...SL 40 399 G3 Convert to LP fuel P Kit 302B 7 Where to Place Conversion Labels on the Boiler...

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