Froling FHG 20 - Installing the Control Unit; Installing the Flue Gas Sensor

Boiler Installation
Boiler assembly
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 Place the upper cleaning port cover
in position and lock the linkage into
place by turning it clockwise to
tighten
Installing the control unit
 Position the control box on the boiler
 Remove the cover from the control unit
 Attach the control unit to the boiler using four self-tapping screws
Installing the flue gas sensor
 Screw-in the brass bushing for the flue gas sensor
 Push in the flue gas sensor until about 20 mm of the sensor
remains protruding from the bushing and attach lightly using the
fixing screw
 Slide rubber insulation toward the control end of the wire.
1
20mm