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36
11.2 System Controls 24V
WARNING: UNDER NO CIRCUMSTANCES MUST ANY
MAINS VOLTAGE BE APPLIED TO ANY OF THE TERMINALS
ON THE 24V CONNECTION PLUG.
Connect the mains supply and system heating controls e.g.
room thermostat as diagram 11.2. External controls should
be fitted in accordance with the rules in for
ce.
If fitting a proprietary programmer as part of the system
controls the internal central heating programmer will need to
be disabled as described in section 11.4.
If fitting the Glow-worm Climapro programmer, the internal
programmer will automatically be disabled.
11.3 Mains Voltage System Controls
WARNING: UNDER NO CIRCUMSTANCES MUST ANY
MAINS VOLTAGE BE APPLIED TO ANY OF THE TERMINALS
ON THE 24V CONNECTION PLUG.
Connect mains supply and system controls as diagram 11.3.
External controls should be fitted in accordance with the
rules in force.
If fitting a pr
oprietary programmer as part of the system
controls the internal central heating programmer will need to
be disabled as described in section 11.4.
If fitting the Glow-worm Climapr
o programmer, the internal
programmer will automatically be disabled.
11.4 Disabling the internal CH Programmer
If fitting an external proprietary CH Programmer, it is
necessary to disable the Internal Programmer, refer to
diagram 12.1.
a) Press and hold the ‘mode’ button for 5 seconds.
The display will change to flashing ‘0’.
b) Use the ‘+’ or ‘-’ button to scr
oll to 96.
c) Press ‘MODE’ to confirm.
d) The display now shows a flashing ‘d. 0
’ Use the ‘+’ or
‘-’ key to scroll to ‘d.92’.
e) Press ‘MODE’ to confirm.
f)
The display now shows a flashing ‘2’ above the ‘d.92
’.
g)
Use the ‘+’ or ‘-’ button to change this value to ‘0’.
h) Press ‘MODE’ to confirm, ‘1’ stops flashing and is
saved.
i)
Press and hold ‘MODE’ to exit.
The CH Programmer has now been disabled. See the
diagnostic menu instructions in the Fault Finding section for
further details.
11.5 Electrical Cartridge Securing
Fit electrical cartridge into the interface housing on
completion of the wiring, see diagram 11.4.
Secure with the two cartridge retaining screws provided in
the cartridge body.
11.6 Electrical Connections - Testing
Carry out preliminary electrical system checks as below:
1. Test insulation resistance to earth of mains cables.
2. Test the earth continuity and short circuit of cables.
3. Test the polarity of the mains.
NOTE: If you require to test the appliance refer to section 14.
11 Electrical Connection
13488
11.7 Internal Programmer Configuration
By default this appliance is configured with an internal 24
hour Central Heating programmer. This can be configured as
a 7 day programmer, if desired, by following the procedure
below:
a) Press and hold the ‘mode’ button for 5 seconds.
The display will change to flashing ‘0’.
b) Use the ‘+’ or ‘-’ button to scroll to 96.
c) Press ‘MODE’ to confirm.
d) The display now shows a flashing ‘d. 0
’ Use the ‘+’ or
‘-’ key to scroll to ‘d.91’.
e) Press ‘MODE’ to confirm.
f)
The display now shows a flashing ‘0’ above the ‘d.91’.
g)
Use the ‘+’ button to change this value to ‘1’.
h) Press ‘MODE’ to confirm, The value is now saved.
i) Press and hold ‘MODE’ to exit.
It is possible to enable a second programmer channel to
contr
ol the DHW circuit pre-heat function. Follow the same
procedure as described above but scroll to ‘d.92’ and change
the value to ‘3’.
The following two tables outline the configuration options:
Diagram 11.4
d.92 Enable/disable internal programmer
0 CH OFF / DHW OFF
1
CH OFF / DHW ON
2 CH ON / DHW OFF
3 CH ON / DHW ON
d.91 24 hour / 7 day Operation
0 24 HOUR
1
7 DAY
Table 1
Table 2
ELECTRICAL
CARTRIDGE
SECURING
SCREW (2 OFF)
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