ICI Caldaie RIO 140, Installation And Servicing Manual

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3 BOILER INSTALLATION
15
3.4 CONNECT THE PIPEWORK (See Fig. 2 and section 14)
Having ensured that all the water pipework has been thoroughly flushed and that the gas supply is clear, the
pipework can now be connected to the boiler - ensure that all the plastic caps are removed from the boiler
connections first. Take care when removing the plastic caps as the boiler may still contain a small amount
of water.
Notes: a Ensure no parts of the pipework protrude more than 100 mm from the wall, as when the bottom
cover assembly is refitted there is only a gap of 105 mm between the back of the bottom panel and
the wall.0
b Connect the safety valve discharge pipe to the valve, remembering that the pipe must be routed
clear of the boiler to a drain in such a manner that it may be seen, but cannot cause injury to
persons or property.
1 Noting the pipe positions from the labels on the boiler, secure all the valves/fittings to the boiler with the
operating spindles upward (accessible from within the boiler), then connect the pipework.
2 When tightening any fitting do not apply excessive force which might damage the pipework.
3 Connect the pressure reducing valve and expansion relief valve in the mains water supply to the boiler as
described in section 2.13 and shown in Fig. 6. There must be no valves between the boiler and the
expansion relief valve.
4 Connect the temperature/pressure relief valve and expansion relief valve discharge pipes to the tundish
as described in section 2.13 and shown in Fig. 7.
5 Secure pipework to the wall as necessary.
6 Ensure that all the valves are closed and do not turn on the gas or water supplies at this stage.
A valve is closed when the slot in the operating spindle is at right angles to the valve.
3.5 FIT THE STANDARD HORIZONTAL FLUE (See Figs. 10 and 11)
Alternative flue options are described in our seperate flue brochure.
Note
: To avoid rain or possible condensation running into the boiler, the flue must not slope down towards the boiler.
The following procedure applies to both rear or side exit flue. The only difference being the lengths to which
the ducts are cut.
Rear flue Outer air duct length is finished wall thickness plus 147 mm.
Inner flue duct length is finished wall thickness plus 277 mm.
Side flue Outer air duct length is finished wall thickness plus the distance from the inside wall to the outer
edge of the case side panel plus 225 mm.
Inner flue duct length is finished wall thickness plus the distance from the inside wall to the outer edge of
the flange on the back panel plus 355 mm.
If the overall length of the inner duct is greater than 1005 mm then a flue extension is required. To fit an
extension refer to section 3.5.1.
1 Open the flue carton and check the contents of the pack against the packing list (see section 14).
2 Withdraw the inner flue duct from the outer air duct.
3 Mark the outer air duct to match the length given above, measure from the swaged 'outer' end of the tube.
See Fig. 10.
4 Mark the inner flue duct to match the length given above, measure from the outermost edge of the
terminal. See Fig. 10.
Push the spacing clip towards the terminal so that it will be about in the middle of the duct when it is cut to
length. The clip can be removed on short flues, below 500 mm.
5 Double check the dimensions then cut both the inner and outer ducts to length. Ensure that they are cut
square and are burr free.
6 Fit the outer sealing collar over the swaged end of the outer duct, ensuring it locates in the swage. See Fig. 10.
Fig. 10 Fig. 11