13
Fig. 13
Depending on site conditions it may be preferable
to install the terminal assembly prior to fitting the
twin flue pipes.
Fit the appropriate flashing plate to the roof and
insert the vertical flue terminal through the flashing
plate from the outside, ensuring that the collar on
the flue terminal fits over the flashing.
Push-fit the twin flue pipes onto the concentric to
twin converter ensuring that the exhaust pipe
connects to the exhaust connection on the con-
centric to twin converter.
If necessary cut the plain ends (male) of the twin
flue pipes to allow connection to the concentric to
twin converter.
NOTE
•••••
Before cutting twin flue pipes ensure allowances
have been made for connection onto the previ-
ous piece and onto the concentric to twin con-
verter. The last twin flue pipes must be pushed
50mm onto the male spigots of the concentric to
twin converter.
•••••
You must ensure that the entire flue system is
properly supported and connected.
•••••
Ensure that any horizontal sections of pipe have
a 1º fall towards the appliance (17mm per
1000mm).
4.6
CONNECTING THE GAS AND WATER
The appliance is supplied with service valves. The
service valves are of the compression type. The
accessories pack contains sealing washers etc,
for use with the service valves. When connecting
pipe work to the valves, tighten the compression
end first then insert the sealing washers before
tightening the valve to the appliance.
NOTE
It will be necessary to hold the valve with one
spanner whilst tightening with another.
4.6.1
GAS (fig. 6)
The appliance is supplied with a 15mm service
valve, connect a 15mm pipe to the inlet of the
valve and tighten both nuts.
NOTE
It will be necessary to calculate the diameter of the
gas supply pipe to ensure the appliance has an
adequate supply of gas.
4.6.2
FLOW & RETURN (fig. 6)
The appliance is supplied with 22mm service
valves for the flow and return connections, con-
nect a 22mm pipe to the inlet of each valve and
tighten both nuts.
NOTE
Depending on system requirements, it may nec-
essary to increase the size of the flow & return
pipe work after the service valve connections.
4.6.3
SAFETY VALVE (fig. 6)
Connect the safety valve connection pipe to the
safety valve outlet. Connect a discharge pipe to
the other end of the safety valve connection pipe
and tighten. The discharge pipe must have a
continuous fall away from the appliance to outside
and allow any water to drain away thereby eliminat-
ing the possibility of freezing. The discharge pipe
must terminate in a position where any water -
possibly boiling - discharges safely without caus-
ing damage or injury, but is still visible.
4.6.4
CONDENSE PIPE
During normal operation the boiler produces con-
dense 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 3º fall towards the drain. Any ex-
ternal 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. Con-
nect a suitable plastic (not copper) pipe (no less
than 20mm diameter) to the outlet pipe and ensure
it discharges in accordance with building regula-
tions or other rules in force.