14
Mexico Super CF 3/60P - 3/140P -
Installation
11 GRAVITY HOT WATER & PUMPED CENTRAL HEATING
INST
ALLA
TION
INSTALLATION
12 FLUE CONNECTION
Connect the flue pipe to the flue outlet.
The flue pipe spigot and socket connections should be sealed
with fibreglass rope, or similar, and suitable fireclay cement.
Notes.
a.
The boiler flue connection outlet size is suitable for flue pipe
conforming to BS 567.
If sheet steel flue pipe is fitted, a suitable adaptor must be
used.
b.
To facilitate installation and subsequent disconnection it is
recommended that a slip or split socket be included in the
flue installation, adjacent to the boiler flue outlet connection.
c.
A minimum of 600mm (2') of vertical flue directly above the
boiler should be provided.
1.
Separate flow and return connections are used for
each service. All possible configurations are given in
Frame 7 and
ONLY those shown should be used.
2.
The schematic pipework graph is based on the
assumption that NO MORE than 8 elbows are used in
the gravity loop, including entry to the boiler.
3.
For each extra elbow in excess of 8, (R) MUST be
reduced by 300 mm (12") or (H) increased by 100 mm
(4")
4.
Whatever value is selected for (R), the value of (H)
MUST be at least that indicated by the graph
(R)
=
the horizontal distance between the centre line of
the cylinder and the boiler tappings used -
measured along the pipe run
(H)
=
the vertical distance between the top of the boiler
and the base of the cylinder
Notes.
a.
Flow and return pipes should rise vertically on
leaving the boiler.
b.
Horizontal pipes should be ABOVE ceiling
level and as short as possible.
c.
A MINIMUM inclination of 25 mm per 3 m run
(1" per 10') is required to avoid air locks.
If the above conditions cannot be met then
pumped primaries should be used.
Summary of Contents for Mexico Super CF 3/60P
Page 1: ......