Installing air valves on an
SH boiler without TWIN burner
Installation of the air valves for an SH boiler
without an additional flange for a TWIN burner is
described here.
The air valves for an SH boiler with a pellet
flange for the TWIN burner (SH 20P, SH 30P)
are different; their installation is described on
page 29.
Fuel chamber door
SH 20 - 60 kW boiler
Ignition door
Combustion chamber
door
Prepare shafts for air valves
Pull the cotter pin on the spring side. Then remove
the washer, the spring and an air valve from the
shafts for primary and secondary air.
Push shafts into boiler
Push both shafts into the air boxes from the side
on which the actuators will not be mounted.
Take both air valves from fuel chamber
Take both shafts, including air valves, from the fuel
chamber.
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