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Boiler hanging
a
With regards to the Manual Handling Operations,
1992 Regulations, the following lift operation
exceeds the recommended weight for a one
person lift, refer to chapter "Manual Handling".
1
2
Key
1 Boiler
2 Hanging bracket
• Two persons recommended. Lifting the boiler into position,
lean the top of the boiler slightly to the wall and position just
above the hanging bracket.
• Lower the boiler slowly and engage onto the hanging bracket
8 Hydraulic connection
8.1
Gas and water connections
The whole of the gas installation, including the meter, should be
inspected, tested for tightness and purged in accordance with
the current issue of BS6891 and in IE the current edition of
I.S.813 “Domestic Gas Installations”.
The gas supply pipe should be a minimum of 22mm.
The appliance may contain a small amount of
water, place a water container beneath the boiler
connections.
• Take care to clean the pipes before assembly removing any
debris or burrs. Grease and oils may need to be removed they
are not possible to remove by cleansing and fl ushing. Foreign
bodies in the system may enter the appliance and interrupt its
operation.
Ensure that the appliance is disconnected before cleansing the
system.
• Do not use any solvent products, due to the risk of damaging
the circuit.
a
Do not perform any 'hot work' directly under
the appliance, this may cause damage to the
appliance base. Heat may also damage the
isolation valves. Always pre-assemble pipes
before fi tting them to the boiler.
• Only use original seals supplied with the appliance.
• Check that there are no leaks. Repair if necessary.
Before turning on the cold mains supply to the boiler
turn off the cold water inlet to the boiler, lock the fi lling
loop in the closed position and close its fi lling taps.
8.2
Safety Discharge Valve
B
A
3
2
1
Key
1 Discharge pipe 15mm o.d.
2 Pressure relief valve PRV
3 Draining outlet
A PRV outlet - Extend, using 15mm Cu pipe, to terminate in a
safe location outside the building
B Appliance drain
This must be extended, using not less than 15mm o.d. pipe,
to discharge, in a visible position, outside the building, facing
downwards, preferably over a drain. To ease future servicing
it is advisable to use a compression type fi tting to extend the
safety discharge valve tube.
The pipe must have a continuous fall and be routed to a
position so that any discharge of water, possibly boiling,
or steam cannot create any danger to persons, damage to
property or external electrical components and wiring.