Supplied By www.heating spares.co Tel. 0161 620 6677
15
Fig. 14
isolator to the appliance must be 3-core flexible
sized 0.75mm to BS 6500 or equivalent. Wiring
to the appliance must be rated for operation in
contact with surfaces up to 90ºC.
4.7.1
CASING REMOVAL (fig. 14)
To gain internal access to the appliance you must
first remove the casing, proceed as outlined below:
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remove the 4 screws (B) located at the Left &
Right of the underside of the casing
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lift the casing upward to disengage it from the
top locating hooks and then remove
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store the casing and screws (B) safely until
required. Re-fit in the reverse order.
4.7.3
CONNECTING THE MAINS (230V) INPUT (see
fig. 16).
Unhook and remove the terminal block cover
(230V). Pass the cable through the cable
anchorage point.
Connect the supply cable wires (LIVE, NEUTRAL
& EARTH) to their corresponding terminals (L, N
& E) on the appliance - 230V - terminal block.
When connecting the EARTH wire, ensure that
it’s left slightly longer (about 2cm) that the others,
this will prevent strain on the EARTH wire should
the cable become taut.
Do not remove the link wire unless additional
external controls are to be fitted (see section 8).
The securing screw on the cable anchorage should
now be tightened. This must be done before the
control fascia is re-fitted in the upright position.
The appliance casing, screws and lower cover can
now be re-fitted.
Fig. 15
Optional devices
(24V) terminal block
Mains (230V)
terminal block
4.7.2
APPLIANCE TERMINAL BLOCK
The appliance terminal block is located on the
rear of the control fascia. Remove the casing as
described in 4.7.1. Gently pull the control panel
forwards and down. Locate the terminal block cover
(see fig. 15).
NOTE
The appliance comes with a factory fitted link (‘TA’)
to allow basic operation of the boiler via the mode
selector switch. If it is anticipated that external
controls will be required please refer to the wiring
diagrams in section 8 for more detailed information.
Fig. 16
B
B
B
B