Installation
6720813174 (2014/09) 9
Fig. 16 Condensate drain pipe
[1] Condensate drain pipe
5.8 Connecting the expansion vessel (accessory)
Connecting the expansion vessel in a multi-boiler configuration
(cascade configuration)
In cascade systems only one expansion vessel is required for the heating
system.
▶ Connect the expansion vessel to the secondary side of the header in
the return circuit, so that every boiler is connected to the expansion
vessel.
Refer to the cascade system installation instructions for the installation
details.
Fig. 17 Connecting the expansion vessel in a multi-boiler configuration
(cascade configuration)
[1] Expansion vessel
[2] Low loss header
5.9 Making the electrical connections to the pump
▶ Turn the vent key through a quarter rotation to undo the boiler door
lock [1].
▶ Push the fastener down [2] and open the boiler door [3].
▶ Remove the cover shield of the pump group [4].
Fig. 18 Opening the boiler door
▶ Undo 1 screw to release the cover over the electrical connections
and pull the cover up.
Fig. 19 Pulling the cover over the electrical connections up
WARNING: Damage tot the unit due to faulty pressure
relief valve.
▶ The expansion vessel must be of sufficient capacity.
To Next Page
Loading...
Need help?
General