INSTINCT NATURAL TO PROPANE CONVERSION INSTRUCTIONS
1. Preliminary Instructions:
1. Verify that the venturi replacement kit is correct for
the model of boiler. See page 1.
2. Turn o electrical power supply to the boiler.
3. Close the manual gas shut o valve to the unit.
4. Remove the front panel of the Instinct by removing
the screw along the bottom edge of the unit. Pull
the bottom of the panel forward and then lift to re-
move the front panel from the unit.
5. Using a voltmeter ensure there is no electrical pow-
er to the boiler by checking for power on the boil-
er’s high voltage terminals L and N.
WARNING
!
ELECTRICAL SHOCK HAZARD
Ensure power to the boiler has been disconnected pri-
or to servicing the unit.
Fig. 1: Instinct 110 Gas Train
Fig. 2: Instinct 155 Gas Train
Fig. 3: Instinct 199 Gas Train
2. Removal of Natural Gas Venturi
1. Remove the silicone tube from the air inlet elbow,
then remove the air inlet elbow.
2. Rotate the venturi interface approximately 60°
clockwise to release the clamping mechanism and
remove the venturi interface.
3. Remove the gas valve to venturi pipe by loosening
the nuts at both ends of the pipe with an adjust-
able wrench.
NOTICE
There are gaskets at both ends of the gas valve to venturi
pipe. These gaskets must be reinstalled along with the pipe.
Use care not to damage the gaskets.
4. Using a 10 mm socket and ratchet, remove the
three (3) bolts securing the venturi to the fan as-
sembly and remove the natural gas venturi from
the unit, making sure not to damage the blower
O-ring gasket.
3. Install the propane venturi
1. Verify the following when aligning the propane
venturi:
1. The UP arrow on the plastic housing is pointing
upward.
2. The threaded connection for the gas piping is in
the correct orientation for re-tting the gas pipe.
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