Fitting
Worcester Commercial Boiler Series – 6720814332 (2019/04)
26
5.9
Installing the siphon
▶ Remove the transport protection plug.
Fig. 42 Remove the transport protection plug
▶ Fill the condensate trap with water.
▶ Instal the condensate trap.
Fig. 43 Installing the condensate trap
With pump group
▶ Install the tee [1] between the pressure relief valve and the siphon.
Combined PRV and condensate is optional.
▶ Mount the flexible hose [2].
Fig. 44 Mounting the flexible hose
[1]
T piece
[2]
Flexible hose tube
Without pump group
▶ Connect the flexible hose to the siphon.
5.10
Connecting the condensate drain
NOTICE:
Boiler damage.
▶ Make sure there is an open connection between the boiler and
condensate discharge pipe.
▶ Use a waste water pipe made of plastic material with a diameter of at
least Ø 32 mm to remove the condensate.
▶ Install a trap in the waste water pipe.
▶ Connect horizontal pipe sections with a gradient of 53 mm per metre
to the waste water pipe.
The maximum length of the horizontal pipe section in this case is 5 m.
▶ Fill the trap in the waste water pipe.
5.11
Expansion vessel connection
Determine the size and supply pressure of the expansion vessel based on
BS EN 12828.
If the option to connect the expansion vessel to the pump group is used
with a back-to-back cascade installation (TR), a right-angled coupling is
required in the front row of the boilers.
▶ Remove the cap from the connection point [1].
0010009997-001
1.
2.
0010009998-001
2.
1.
0010009999-001
1
2