System Connections - IDEAL Concord CXi 110 Installation & Servicing Manual

8 BOILER ASSEMBLY
1. Fit the distributor tube into the selected return connection.
Ensure that the tube flange aligns horizontally and that the
2 sealing gaskets are correctly assembled on the tube -
refer to alignment notches.
Fit the 2" tapped flange, using the M10 x 35mm screws and
washers provided.
2. Fit the blank flange to the other lower rear connection,
using the gasket and M10 x 25mm screws and washers
provided.
3. Fit the blank flange to the RH front connection, using the
gasket and M10 x 25mm screws provided.
4. The 1 4" tapped flange and gasket should be fitted to the
1/
LH front connection with the reducing bush and
cock. If the cold feed/expansion pipe is to be brought
directly to the boiler, the close taper nipple and 1
must be fitted so that the drain cock is horizontal. This will
reduce the possibility of the drain becoming blocked by
debris.
9 FLUE CONNECTION
1. Complete the secondary flue connection.
The boiler is designed to accept flues to BS.835. If a
suitable adaptor is used then flues to BS715 may be
fitted.
2. Seal with an approved boiler putty.
3. A split socket should be fitted immediately above the
boiler to facilitate disconnection of the flue.
Concord CXi -
Installation
INSTALLATION
5. Complete the system connections (using suitable jointing
compound) as follows:
The cast iron flow header must be fitted in the chosen
flow connection which will be either of the 2 top rear
tappings. A length of 2" BSP pipe is contained in the
Plateware Package for this purpose.
Fit the flow header so that the 1
header is vertical. Screw the thermostat pocket into one
of the " tappings.
1/2
The other
provided. The flow header terminates in a 2
connection.
The 1 " BSP tapping on the top of the flow header is
1/2
for a vent pipe ONLY and MUST NOT be used for any
other purpose.
A safety valve may be fitted in the remaining top rear
tapping, in accordance with CP332:3.
The unused top rear tapping may be used as an
alternative and independent open vent / safety pipe
connection. The LH front bottom tappings may be used
for an independent cold feed / expansion pipe
connection.
In order to avoid air locks, reduction in pipe sizes should
be made in the vertical plane or eccentric bushes used.
Finally , plug the unused tappings, using the 2" BSP
plugs supplied.
" drain
1/2
" tee
1/4
10 GAS CONNECTION
Connect the gas supply to the gas inlet pipe - Table 2 gives
details of the inlet pipe size.
The use of an approved gas cock and union is
recommended here.
" vent tapping in the
1/2
" tapping is used for the pressure gauge
1/2
" flange
1/2
13