15
NOTE
•
Before cutting twin flue pipes ensure allowances have been
made for connection onto the previous piece and onto the
concentric to twin converter. 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 to 3º
fall towards the appliance to allow any condensate that forms
in the flue system to drain via the condensate drain. (17mm
per 1000mm = 1º).
Fig. 16
Fig. 17
4.6 CONNECTING THE GAS AND WATER
The appliance is supplied with an accessory pack that includes
service valves.
The service valves are for welding. The accessory pack contains
sealing washers’ etc, for use with the service valves.
NOTE
It will be necessary to hold the valve with one spanner whilst
tightening with another
4.6.1 GAS (fig. 19)
The appliance is supplied with a 22mm service valve, connect
a 22mm 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. 19)
The appliance is supplied with 22mm service valves for the flow
and return connections, connect a 22mm pipe to the inlet of
each valve and tighten both nuts.
NOTE
Depending on system requirements, it may necessary to
increase the size of the flow & return pipe work after the service
valve connections.
4.6.3 COLD WATER INLET (fig. 19)
The appliance is supplied with a 15mm combined stopcock
and double check-valve, connect a 15mm pipe to the inlet of
the stopcock and tighten both nuts.
4.6.4 HOT WATER OUTLET (fig. 19)
The appliance is supplied with a 15mm outlet connection,
connect a 15mm pipe to the outlet connection and tighten
both nuts.
4.5.4 INSTALLATION OF CONDENSATE DRAIN KIT
The condensate drain kit must be fitted within 1 metre of the
appliance flue outlet. It is recommended that the condensate
drain kit should be fitted in the vertical plane, however it can
be fitted horizontally with care.
-
Fit the first bend to the condensate drain kit or exhaust
connection manifold by firmly pushing in to position.
-
Using the two holes in the exhaust connection manifold as
a guide, drill a 3 mm hole in each and secure using the
screws provided.
-
Connect the air inlet pipe to the air baffle as above.
-
The twin flue pipes extensions and accessories
can
now be installed by pushing together (the plain end of each
extension or bend should be pushed approximately 50 mm
into the female socket of the previous piece).
The condensate drain trap must be connected to the drain in
accordance with building Regulations or other rules in force.
Condensate drain kit
Fig. 18