11
REAR FLUE OUTLET
INSTALLATION
Mexico Super FF4100 & FF4125 -
Installation & Servicing
8
PREPARING THE BOILER
Notes
.
!
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.
!
The pump may be fitted to the FLOW or the RETURN.
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.
IMPORTANT.
It is
IMPERATIVE
that the index mark on the
distributor tube bush is in alignment with the mark on the
section boss, as shown in Frame 3.
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 5 and 6.
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.
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
Table 6 - Gravity Domestic Hot Water
and Pumped Central Heating
Table 5 - Fully Pumped Systems
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
9
REAR FLUE ASSEMBLY - Exploded view
LEGEND
1.
Terminal.
2.
Weather seal.
3.
Flue assembly.
4.
Boiler sealing ring.
5.
Flue extension tube (long with ring).
6.
Sealing plate.
7.
Flue connector.
8.
Turret access cover.
For wall thickness 114mm to 600mm
Note.
The boiler turret assembly is factory built, ready for rear flue installation.
1.
Remove the turret access cover.
2.
Locate the LONG flue extension tube (with the air
deflector ring) in the flue accessories pack.
3. FF4125 models only.
Undo the 2 self-tapping screws
securing this ring and slide to the centre of the flue
tube.
4.
Offer the extension tube down through the access hole
and partly out through the rear turret hole.
5. FF4125 models only.
Relocate the air deflector ring - it
will only fit one way, due to the offset tabs - and secure its
rear tab in the
rear
hole with a self-tapping screw
(inserting this from the
outside
of the turret).
6.
Pull the flue extension tube foward to the flue connector
and secure to the fan outlet assembly with the M4 screw.
7. FF4125 models only.
Refit the front self-tapping screw to
the second fixing tab on the air ring.
200940-1.p65
3/2/2004, 9:06 AM
11