14
Mexico Super CF 3/40 - 3/80 -
Installation
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.
11 GRAVITY HOT WATER & PUMPED CENTRAL HEATING
INST
ALLA
TION
INSTALLATION
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
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.
(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.
Содержание Mexico Super CF 3/40
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