Gruppo Imar IVY 24 MR/MN, Installation & Use Manual, Page: 19 / 44

17
PLUMBING THE BOILER IN
Connect the water and central heating
pipes to the boiler, respecting the positions
and distances indicated (Pict. 20-21); take
particular care when connecting pipes to
ensure they are not placed under pressure
in order to minimise the danger of future
leaks. Use appropriate tools and procedures
for tightening.
F l u s h t h o r o u g h l y b e f o r e
connecting the pipes to ensure
that any impurities present in
the piping and radiators are
completely removed.
Connect the safety valve outlet
so that its operation would not
cause any damage to persons
or property
• Use piping of not less than 1/2”
diameter
• Ensure that the line is always at
atmospheric pressure by using
suitable traps (do not connect
pipes directly to the valve outlet)
• Connect the safety valve outlet
line to the household grey water
drainage system
• Apply suitable protection to the
drainage line – the water carried
in it may be at high temperatures
• THE MANUFACTURER ASSUMES
NO RESPONSIBILITY FOR DAMAGE
CAUSED TO PERSONS OR PROPERTY
DUE TO OPERATION OF THE SAFETY
VALVE DO NOT USE THE PLUMBING
PIPEWORK CONNECTIONS AS
EARTH POINTS FOR ELECTRICAL
EQUIPMENT.
CONNECTING FILLING COCK FOR CENTRAL HEATING ONLY BOILERS
In order to fill the system, it is sufficient to
connect the supplied ball valve to the 1/2”
DHW intake and connect this to a water pipe.
Pic. 22
FILLING THE SYSTEM
When all of the boiler connections have
been plumbed in, it is possible to proceed
to fill the central heating circuit. Perform the
operation slowly to help all air bleed out of
the system. When filling, check all the internal
and external parts of the system to make sure
they are perfectly tight.
• Open the bleed valves on the radiators
• Gradually open the filling loop cock Pict. 23,
ensuring that any automatic air bleed valves
installed on the system are working correctly.
• Close the radiator bleed valves as soon as
water starts to come out
• Check on the boiler pressure gauge that a pressure of between 1.3 and 1.6 bar has
been reached
• Close the filling loop and then
Perform the filling and topping
up of the system with the boiler
completely off and all parts at
ambient temperature.
Always close the filling loop
cock once you have finished the
operation.