15
e
Connect a discharge pipe to the fixing jig
connection and tighten. The discharge pipe must
have a continuous fall away from the appliance
to outside and allow any water to drain away
thereby eliminating the possibility of freezing. The
discharge pipe must terminate in a position where
any water – possibly boiling – discharges safely
without causing damage or injury, but is still
visible.
4.6.6
CONDENSE PIPE
During normal operation the boiler produces
condense which is collected in a trap located in
the lower part of the boiler. A flexible pipe
(condense outlet pipe) is connected to the outlet
of the trap. The flexible pipe must be connected
to a plastic waste pipe only. The plastic waste
pipe must have a minimum of a 3
°
fall towards
the drain. Any external run of pipe should be
insulated to prevent the risk of freezing.
CONNECTING THE CONDENSATE OUTLET
Gently pull the condense outlet pipe down from
its location inside the boiler until approximately
200mm protrudes from the underside of the boiler.
Connect a suitable plastic (not copper) pipe (no
less than 20mm diameter) to the outlet pipe and
ensure it discharges in accordance with building
regulations or other rules in force.
4.7
ELECTRICAL CONNECTIONS
The electrical supply must be as specified in
section 3/3A. A qualified electrician should
connect the electrical supply to the appliance. If
controls – external to the appliance – are
required, a competent person must undertake the
design of any external electrical circuits, please
refer to section 8 for detailed instructions. ANY
EXTERNAL CONTROL OR WIRING MUST BE
SERVED FROM THE SAME ISOLATOR AS
THAT OF THE APPLIANCE. The supply cable
from the 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 90
°
C.
4.7.1
CASING REMOVAL
To gain internal access to the appliance you must
first remove the casing, proceed as outlined
below:
●
press the controls cover to release the controls
cover catch
●
locate and unscrew the 2 screws that secure
the controls fascia to the appliance casing (see
fig 15)
●
gently lower the control fascia until it rests
●
remove the 2 screws located at the Left & Right
of the underside of the casing
●
lift the casing upward to disengage it from the
top locating hooks and then remove
●
store the casing and screws safely until
required. Re-fit in the reverse order.
Fig. 15
4.7.2
APPLIANCE TERMINAL BLOCK
The appliance terminal block is located on the
left side of the control fascia (see fig. 15). Locate
and remove the screws securing the terminal
block cover.
NOTE
The appliance comes with a factory fitted link 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.
4.7.3
CONNECTING THE MAINS (230V) INPUT (see
fig. 16)
Remove the terminal block cover as described
in 4.7.2. Pass the cable through the cable
anchorage point. At plug M16 on the appliance
control PCB there are 7 terminals from Front to
Back they are:
1. NEUTRAL
2. NEUTRAL (supply for clock)
3. LIVE
4. LIVE (supply to clock)
5. TA
6. TA
7. (Spare)
Connect the supply cable wires (LIVE, and
NEUTRAL) to their corresponding terminals on
the appliance terminal block. Connect the EARTH
wire to the EARTH block (see fig. 16) ensuring
that it’s left slightly longer that the others, this will
prevent strain on the EARTH wire should the
cable become taut.
A
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