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1 0. ElecJrical
See Figs. 8, 9, 10,11 and 12.
1 0.1 MAINS SUPPLY. 240
V - ,
50
Hz,
270 watts.
External Fuse 3A. Internal Fuses: T2A (F1) and T315mA (F2).
10.2 It must be possible to completely isolate the appliance.
1 0.3 Connection to the mains supply should be via a double
pole isolator with a contact separation of 3mm in all poles and
supplying the appliance and controls only.
1 0.4 The appliance must be earthed.
10.5 Mains Cable. 0.75 mm
2
(24 x 0.20 mm) to BS 6500 Thble
16.
If
a new cable is needed it must be connected into the terminals
marked L (Brown or Red lead), N (Blue or Black lead) and the
Fig. 8. Wiring Diagram-Control panel and facia.
(All components shown viewed from front of appliance)
earth stud and be held securely in the cable clamp. For access
refer to Section 14.
10.6 The wiring between the appliance and the electrical supply
shall comply with current
lEE
Wiring Regulations and any local
regulations which apply.
10.7 If a room and/or frost thermostat is to be fitted refer to
Figs. 11 and 12. The thermostats must be suitable for use on
mains voltage.
1 0.8 A facia mounted programmer is available as an extra.
Instructions are supplied with the programmer kit.
1 0.
9
A time switch or programmer can be fitted externally to the
appliance.
1 0.1 0 SAFETY CHECK. After installation or in the event of an
electrical fault the electrical system shall be checked for short
circuits, fuse failure, incorrect polarity of connections, earth
continuity and resistance to earth.
r-----------T---------------r-------------------,
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Indicator Lights
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Operating Switch
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POWER ON
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WATER
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OFF
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HEATING
&
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DEMAND
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br
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9
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:
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max
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~-------------~
- - - - - - - - - -
__ JL_____
--------------~
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Temperature Control
I
:______________
- - - - - - - - - - - _ _
P~e~i~eter__
_ ______________
j
Control Facia
Control Panel
.---------------
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1
1
TO
TO
TO
TO
SPARK
FAN GAS VALVE
GAS VALVE
ELECTRODE
MAIN
PILOT
-----.,
SEQUENCE
BOARD
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OverheatThermostat
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MAIN DRIVER BOARD
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FUSE
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CENTRAL DOMESTIC GAS VALVE
' - - - - - - - - '
OVERRUN
:;;
!Q
DIVERTER
HEATING HOT WATER MODUREG
THERMOSTAT
51
~
VALVE
SENSOR
SENSOR
REGULATOR
12
~
MICRO.SWITCH
COLOUR CODE
br-brown bl-blue gy-green and yellow bk-black or-orange
r-red w-white y-yellow g-grey v-violet pk-pink
/ '
10
..,
__
_,
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