Installing Function Modules (Accessories) - Worcester GB162-65 Installation And Servicing Instruction

CONNECTING THE DHW PUMP
B Connect the DHW pump to the grey PS terminal.
The maximum allowed connected load of the pump =
250 Watts.
PS
Fig. 57 Terminal strip - DHW pump 230V (connection
colour grey)
CONNECTING THE DHW CIRCULATION PUMP
B Connect the DHW circulation pump to the lilac PZ
terminal. The maximum allowed connected load of
the pump = 250 Watts.
Fig. 58 Terminal strip - DHW pump 230V (connection
colour grey)
CONNECTING TO THE MAINS
All Worcester boilers require a permanent
live.
A mains supply of 230 V - 50Hz is required.
External controls are suitable for volt free installation.
Wiring to the boiler MUST be in accordance with the
current I.E.E. (BS 7671) Wiring Regulations and any local
regulations.
Wiring should be a 3 core PVC insulated cable, not less
than 0.75 mm² (24 x 0.2 mm), and to table 16 of
BS 6500.
Connection must be made in a way that allows complete
isolation of the electrical supply such as a double pole
switch having 3 mm contact separation in both poles, or
by a three pin connector, serving only the boiler and
system controls. This boiler is equipped with a double
pole switch [1].
The means of isolation must be accessible to the user
after installation.
The electrical connection to the mains supply should be
readily accessible and adjacent to the boiler.
If the supply cord is damaged, it must be replaced by a
registered Gas Safe installer to avoid a hazard and must
be an original spare part.
6 720 648 726 (2011/07)
6 720 648 726-057.1TD
PZ
6 720 648 726-058.1TD
The electrical supply for both the boiler and the system
must be taken from the same fused spur outlet.
DANGER: Danger of fatal accident due to
electric shock.
B Disconnect the boiler from the mains
power supply before working on the
boiler.
ON
OFF
1
Fig. 59 Mains supply
8.5.6 INSTALLING FUNCTION MODULES
(ACCESSORIES)
Refer to the installation instructions of the
relevant function modules for information
about installation and combination
possibilities.
The following function modules (accessories) can be
connected to the boiler:
• Heat demand 0-10V module EM10
• Error reporting module EM10
• Switch module WM10
• Mixing module MM10
• Solar module SM10.
Function modules (accessories) can be installed in
2 ways:
• in the boiler (max. 2)
• outside the boiler.
Both methods are described below.
B Determine how the modules have to be installed.
INSTALLATION
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