Ideal Boilers Mexico Super CF495, Installation And Servicing Manual

Page: 14 / 36

INSTALLATION
14 Mexico Super CF495 - CF4140
-
Installation & Servicing
Boiler size Dim. A Dim. B Dim. C
CF495 482(19") 256(10") 28(1
1/8
")
CF4120 553(21
3/4
") 256(10") 47(1
7/8
")
CF4140 704(27
3/4
") 286(11
1/4
") 57(2
1/4
")
Connections - as viewed at front Thermostat Position
Back Section Front Section
CH DHW
Flow Return Flow Return Top
LH LH RH RH LH
LH RH RH LH LH
RH RH LH LH RH
RH LH LH RH RH
CF4140 ONLY
LH LH RH RH LH
RH RH LH LH RH
11 PREPARING THE BOILER
Note .
Before placing the boiler in the selected position any gas
and water connections at the rear of the boiler should be
prepared, due to the possible lack of access.
1. Screw the distributor tube (supplied with a 1" BSP x
28mm copper adaptor) into the selected heating
return tapping, using an appropriate jointing
material.
It is imperative that the index mark on the distributor
bush is in alignment with the mark on the section
boss, as shown in Frame 7.
DO NOT disturb it when connecting subsequent
pipework.
Fully pumped systems using more than 1 pump,
serving separate zones, must have a common return
connection to the distributor tube.
2. Select the desired pumped flow tapping.
3. Screw the supplied boiler thermostat pocket into the
appropriate front section tapping, using an approved
jointing material. Refer to Tables 6 and 7.
4. Connect pipe fittings to the rear tappings and plug
any unused tappings.
Note . If using iron elbows fit a
short straight connector into the boiler tapping first, to
clear the casing when fitted.
5. Place the boiler in position. Note . The pump may be
fitted on the FLOW or RETURN.
Connections - as viewed at front Thermostat position
Back Section Front Section
Flow Return Top
LH LH LH
LH RH LH
RH RH RH
RH LH RH
CF4140 ONLY
LH LH LH
RH RH RH
Table 6 - Fully Pumped Systems
Table 7 - Gravity Domestic Hot Water & Pumped Central Heating
12 GAS CONNECTION
1. A MINIMUM working gas pressure of 20
mbar (8 in.w.g.) MUST be available at the
boiler inlet, with the boiler operating.
2. Extend a gas supply pipe to the boiler
(for size refer to Table 1, page 2) and
connect to the gas cock situated at the
front LH side of the boiler.
3. Test the gas installation for soundness
and purge in accordance with BS.6891:
1988. Refer to Frame 25.
INST
ALLA
TION
200944-1.p65 3/8/2004, 3:41 PM 14