Output/Pump Head Performance; Draining The Storage Boiler; Dhw Expansion Vessel (Available On Request) - Westen Boyler digit 240/40 Fi Manual Del Usuario

25. OUTPUT/PUMP HEAD PERFORMANCE

A high static head pump, suitable for installation on any type of single- or double-pipe heating system, is used. The automatic air valve
incorporated in the pump allows quick venting of the heating system.
mod. 240/40 i - 240/40 Fi - 240/60 i - 240/60 Fi
FLOW l/h
NOTE:
An oversize pump with the same characteristics as the pump mounted on the Boyler Digit 280 models is available for the
Boyler Digit 240 models.

26. DRAINING THE STORAGE BOILER

Drain the water in the storage boiler as follows:
• close the water inlet tap;
• open a user tap;
• unscrew the ring nut from the relative drain tap (Fig. 15);
• loosen the nut on the DHW outlet pipe on the storage boiler,

27. DHW EXPANSION VESSEL (AVAILABLE ON REQUEST)

Expansion vessel kit comprising:
1 stainless steel expansion vessel;
1 support for expansion vessel;
1 connection hose.
1 Ø 8 hose connecting the DHW expansion vessel.
Connect the hose (supplied as an accessory in the expansion vessel kit) to the two connectors A and B as shown in figure 15.
INSTRUCTIONS FOR FITTERS
mod. 280/60 i - 280/60 Fi
FLOW l/h
51
926.008.2 - EN