Connecting The Condensate Drain Pipe; Connecting The Expansion Vessel In A Single-Boiler System - Worcester GB162-65 Installation And Servicing Instruction

When discharging condensate to an outside
drain caution must be taken to ensure
blockage cannot occur during freezing
conditions. If this is likely to occur, the use
of a condensate trap is recommended.
1
Ø21.5 mm min.
1000 mm min.
2
Ø100 mm min.
3
4
Fig. 22 External termination of condensate drain pipe to
absorption point
1 External length of pipe 3m max.
2 Plastic tube
3 Bottom of tube sealed
4 Limestone chippings
5 Two rows of three 12 mm holes at 25 mm centres, 50 mm
from bottom of tube and facing away from house
6 Hole depth
7 Ground (either/or)

8.2.11 CONNECTING THE CONDENSATE DRAIN PIPE

B Connect the condensate drain pipe to the condensate
trap ( fig. 23, [1] and fig. 24, [1]).
1
Fig. 23 Connecting the condensate trap
1 Condensate trap
6 720 648 726 (2011/07)
7
6
400 mm min.
5
6 720 648 726-022.1TD
6 720 648 726-023.1TD
1
Fig. 24 Condensate drainage pipe
1 Minimum distance > 2 cm
Observe the following regulations:
• The (local) waste water disposal regulations.
• The condensate trap in the connection kit must not be
permanently connected to the condensate drain pipe.
The minimum distance between the condensate trap
and the condensate drain pipe is 2 cm.
An air gap should be maintained between the boiler
condensate trap and the condensate pipework.
8.2.12 CONNECTING THE EXPANSION VESSEL IN A
SINGLE-BOILER SYSTEM
CAUTION: Damage to the installation due to
faulty pressure relief valve.
B The expansion vessel must be of
sufficient capacity.
B Connect the expansion tank to the boiler return
(CHR). If a non-return valve is available: connect the
expansion vessel to the CH-side of the non return
valve in the return circuit (
Fig. 25 Connecting the expansion vessel in a single-boiler
system
1 Expansion vessel
INSTALLATION
6 720 648 726-024.1TD
fig. 25, [1]).
1
6 720 648 726-025.1TD
25