16
Fig. 19
Mains (230V)
terminal block
Fig. 17
Fig. 18
A
top connections capped off, however these can be re-
moved to allow pipe work confi gurations as detailed in 3.11.
Depending on system requirements, it may necessary
to increase the size of the fl ow & return pipe work after
the service connections.
4.6.3 CONDENSE PIPE
During normal operation the boiler produces condense
which is collected in a trap located in the lower part of
the boiler. A fl exible pipe (condense outlet pipe) is con-
nected to the outlet of the trap. The fl exible pipe must be
connected to a plastic waste pipe only. The plastic waste
pipe must have a minimum of a 3º 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 100mm 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 specifi ed in section
3/3A. A qualifi ed electrician should connect the electrical
supply to the appliance. If controls – external to the appli-
ance – 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 fl exible 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 (fi g. 17)
To gain internal access to the appliance you must fi rst
remove the casing, proceed as outlined below:
Locate and remove the 4-elongated nuts at corner
of the on the casing
using a screwdriver or suitable
spanner/socket.
Draw the casing forwards to disengage it from the
locating studs and then remove.
Store the casing and nuts safely until required. Re-fi t
in the reverse order.
WARNING
The casing forms the ‘room-sealed’ element of the appli-
ance; therefore you must ensure that the seal is in a good
condition, that the casing is correctly located, and that
all 4-nuts are correctly fi tted and tightened to ensure the
necessary seal to allow safe operation of the appliance.
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.
Locate and remove the two screws from the control panel
(fi g. 18). Gently pull the control panel forwards and down.
Locate the terminal block cover (see fi g. 19).
NOTE
The appliance comes with a factory fi tted link-wire (‘TA’)
and supply fl ex to allow basic operation of the boiler once
the circulating pump has been connected. If it is anticipated
that external controls will be required please refer to the
wiring diagrams in section 8 for more detailed information.