4Sealed System Boiler Publication No. 559931
Boiler Mounting Frame and Connections - Page 4
Hole
ø102mm
61mm
1,210mm Minimum Clearance
840mm Height of Mounting Frame Slots
860mm Height of Mounting Frame
22mm
Return
to the frame
Locknut
Isolating valves are pre-fitted to mounting frame
Isolating
Valves
(MPV)
22mm
Hole for
Gas Adaptor
Flow
Hot Water
Isolating Valve
22mm Flow
SUP0051B
Hole for Safety
Valve Pipe
Positions for
(Standard) Positions for
(MPV)
plug the four
frame mounting
slots as shown
Slots
Nut
(Use a Gas Cap if the boiler
is to be fitted at a later date).
Frame
Install the Boiler Mounting Frame:
1. After unpacking the mounting frame decide
position of flue and mount the frame on the
wall. Use the template provided in the pack
which automatically allows for clearances etc.
2. Cut the flue hole through the wall. If the boiler
is not being installed immediately, the hole
should be temporarily blocked.
3. Using the hole as a datum, align the template
and mark off the wall frame fixing position.
Drill and plug the 4 holes.
4. Mount the frame onto the wall. Before finally
tightening the screws, ensure that the frame is
centrally positioned relative to the centre line of
the flue.
Connections:
Read both Bottom and Top connections before
making a decision on the pipework layout.
Bottom Connection
The boiler mounting frame allows the system
pipework to be connected and the system filled
with water, with gas piped to the frame.
1. Connect the flow and return pipes to the
isolating valves at the base of the wall frame
(22mm compression, In Eire use special ¾”
copper olives).
2. Isolate the gas supply at the meter. Fit the gas
supply pipe to the bulk head connector on the
base of the mounting frame using the nut and
olive supplied - See Fig. 4.
3. Ensuring that the isolating cocks are closed,
the system can be filled with water. If a
proprietary filling loop is used, a temporary
pressure gauge should be used. Do not
exceed 1 Bar fill pressure. Check the system
for leaks.
Note: The system should be filled at a point
convenient to a mains supply using one of the
methods described in the boiler instructions under
'Sealed Systems'.
Top Connection
This system can be used with top connections
provided the following points are observed.
a. The wall mounting frame, sales code
1SUPKITL (standard, without mid position
valve) is ONLY to be used.
b. That the boiler is installed at the same time as
the sealed system (NO pre-plumbing
facility).
c. The flow & flow pipe extension supplied with
the sealed system module is NOT to be used
together with one air vent.
d. The additional pipework is to be in
22mm dia. copper tube (not supplied),
see fig.5 for pipework layout.
