Connecting The Condensate Drain; Expansion Vessel Connection; Mounting The Back Panel Insulation - Bosch Worcester GB162-50 V2 Installation, Commissioning And Servicing Instructions

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].
1
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 Ø32 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.
6720814332 (2018/04)
▶ Remove the cap from the connection point [1].
▶ Connect the connection pipe of the expansion vessel to the
connection point.
Fig. 45 Expansion vessel connection
5.12
▶ Hook the insulated rear panel of the pump group into the boiler.
6 720 807 034-031.1DDC
Fig. 46 Mounting the insulated rear panel

Mounting the back panel insulation

Fitting
1
6 720 807 034-057.1TD
6 720 807 034-058.1TD
25