9
Fig. 9
1
2
3
0
4
bar
A
A
A
A
Place the boiler on the wall on the hanging bracket.
If required, there is space for all piping to pass behind the
boiler. Using fig. 11 for reference, connect the gas and
water pipes and the valves to the base of the appliance
using the tails provided. There is a 190 mm space
between the valves and the wall to make these
connections.
Connecting the boiler to the system
- Hinge down the front panel (fig. 11) to access to the
valve connections
- Remove the yellow caps and connect the boiler to the
taps using washers provided in the plastic bag
3 x fibre washers for the C/H flow, hot water outlet and
cold supply inlet
1 x washer mesh filter “
F” CH return connection.
1 x rubber washer “
R” for gas connection.
Provision must be made to fill and recharge the system
pressure. This can be achieved using a filling loop or other
methods approved by the local water authority.
Fig. 10
Fig. 11
7
Safety valve
The pressure relief valve tube is clear silicone. It should
terminate below the boiler over a tundish or 22 mm pipe
(see
I fig 12) which should in turn discharge safely outside
the premises. Care should be taken that it does not
terminate over an entrance or window or where a
discharge of heated water could endanger occupants or
passers by.
The system should be carefully checked for leaks, as
frequent refilling could cause premature system corrosion
or unnecessary scaling of the heat exchanger.
Fitting the Horizontal Flue
The instructions for the vertical and biflux (twin pipe) flue
options are included with the relevant adapter kits.
The standard flue supplied with the appliance is suitable
for lengths from 300 mm minimum to 790 mm maximum.
This means for rear flueing, the standard kit will
accommodate a maximum wall thickness of 600 mm, and
for side flueing a maximum wall thickness of 587 mm. This
takes into account the minimum appliance side clearances
of 5 mm.
If the fixing is a rear exit flue, the template provides the
position of the centre for drilling the flue hole with a core
drill.
If the flue is a side exit installation then calculate the
position of the hole with a slope of 5 mm / metre away
from the boiler to the terminal. The flue should fall slightly
to the terminal.
Making the Electrical Connections
Connect the live and neutral wires of the main cable. Note:
The connections should be made so that should the lead
be pulled from its anchorage, the current carrying wires
become taut before the earth wire.
If using a room thermostat or other external control, undo
the two retaining screws B, remove cover V (fig 15), they
can be connected in place of the link on the multipin
plug.“C”.
Connect multipin plug into the socket on the power board.
Replace the cover.
R
F
Fig. 12
I
Installing the Boiler
(continued)
