Supplied By www.heating spares.co Tel. 0161 620 6677
22
Instructions for installation and servicing ecoTEC
ba
r
1
2
3
4
5
6
7
Fig. 4.7 Installing the hot and cold water connection (ecoTEC
pro combination boiler)
Note
Flush all foreign matter from the mains supply
before connecting to the boiler.
• Insert the seal (
1
) and connect the service valve (
2
) to
the appliance cold water connection.
• Fit the union nut (
4
) and the compression olive (
3
) to
the pre-formed tail provided with ecoTEC plus appli-
ances (
5
). The diameter of the pipe is 15 mm.
• Fully insert the pre-formed tail into the service valve.
Tighten the union nuts.
• Insert the seal (
7
) and connect in the pipe (
6
) to the
appliance hot water connection. The diameter of the
pipe is 15 mm.
• Mount the handle for the filling loop with a counter-
sunk screw to the service valve (
2
).
4.11
Condensate drain pipe
7
d
Soakaway
c
6
5
Gulley
a
Internal
stackpipe
3
4
3
b
Internal
discharge system
1
2
Fig. 4.8 Installing the condensate drain pipe (picture shows
ecoTEC plus combination boiler)
The ecoTEC plus appliances are fitted with a siphonic
trap (The filling height is 145 mm). The siphon collects
the accumulated condensate in a container of approx.
200 ml capacity and directs the entire content into the
drain pipe. The risk of the condensate drain pipe freez-
ing is thus minimised.
The ecoTEC pro appliances are equipped with a normal
condensing water trap where the condensate is con-
stantly emptied into the drain pipe.
• Connect the boiler condensate drain (
1
) to a conden-
sate discharge pipe (
2
) which should be minimum of
19 mm internal diameter (22 mm external diameter for
any pipework installed external to the property) and
be made of an acid resistant material (e.g. plastic over-
flow pipe).
Note
The discharge pipe from the boiler condensate
drain must have a continuous fall (45 mm per
meter) and preferably be installed and terminat-
ed within the building to prevent possible freez-
ing.
The condensate discharge pipe must terminate in a suit-
able position, e.g.:
a) preferably the discharge pipe should run and termi-
nate internally to the house soil and vent stack (at
least 450 mm above the invert of the stack). A trap
giving a water seal of at least 75 mm (
3
) (built into the
boiler) should be incorporated into the pipe run, and
there must be an air break (
4
) in the discharge pipe
upstream of the trap. The connection to the stack
should not be made in a way that could cause cross
flow into any other branch pipe, or from that branch
pipe into the condensate drainpipe. This can be
achieved by maintaining an offset between branch
pipes of at least 110 mm on a 100 mm diameter stack
and 250 mm on a 150 mm diameter stack.
4 Boiler installation sequence
Summary of Contents for ecoTEC plus 612
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Page 179: ...Supplied By www heating spares co Tel 0161 620 6677 15 Instructions for use ecoTEC...
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