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120-334E-R1

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Note

If converting to propane, order the Propane Conversion Parts kit (IBC Part # P-1201) from your authorized IBC 

distributor.

Use the Natural Gas Conversion  kit if the fuel source at the site uses natural gas and the modulating boiler has been set 

up (factory fire-tested) to operate with propane. 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 NG Mixer Assembly - IBC Part # 180-254

4 x Hex bolt M6 x 14 SS -  IBC Part # 150-373

1 x  O-ring gas valve coupler- IBC Part # 150-001

1 x Rating Plate Fuel Overlay -  IBC Part # 080-285A

4 x Hex bolt M5 x25 IBC Part # 150-354

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

4 x  Flat Washer, 0.562ID -  IBC Part # 150-025

1 x Installer Identifier Label - IBC Part # 080-283A

4 x M6 Flat Washer  IBC Part # 150-159

6 x Hex bolt M8 x14  -  IBC  Part # 150-329

6 x M8 Flat washer -   IBC Part # 150-339

1 x O-ring EBM blower -  IBC  Part # 150-376

This conversion involves changing the mixing assembly. 

EX 700 - Fuel Conversion to Natural Gas 

(LP to NG) P-Kit 1200

Summary of Contents for EX 700

Page 1: ...noxide 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 complet...

Page 2: ...Gas valve and fan Fan Mixing device Gas high pressure switch Inlet gas pressure test port location of Gas low pressure switch Low fire adjustment zero offset High fire adjustment on the side Shutoff...

Page 3: ...he boiler 3 Remove the four 4 5 16 hex bolts from the gas inlet to the mixing device Carefully separate the two parts remove and retain the O ring for re assembly See in image below 4 Remove the four...

Page 4: ...turns on the combustion fan for a 20 second pre purge then energizes the spark electrode and gas valve for a 4 second trial for ignition If the burner does not light the process is repeated until the...

Page 5: ...o 1 full turn to increase the fuel enrichen the mixture before firing up the boiler 6 Before you change the load to manual control note the load setting 7 Set the load to manual control and set the he...

Page 6: ...correct settings Note Clock the gas meter to confirm full maximum rating plate input Check the measured results with Table 1 5 Run the boiler to low fire and check the results to confirm correct setti...

Page 7: ...other appliances and pilots 2 Turn on the boiler and set the boiler to high fire 3 Ensure the boiler has a large load to heat so that the boiler will not shut off 4 With a Stop Watch record the number...

Page 8: ...Where to place conversion labels on the boiler 8...

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