25
WATER CONNECTIONS
Electric Boilers
•
The connections for flow and return must be carried out according to the colour scheme and labelling
marked on the boiler.
•
The connections for mains water inlet and outlet must be carried out according to the colour scheme and
labelling marked on the boiler.
•
When tightening or loosening threaded connections, always use suitable tools such as open-end adjustable
spanners. Do not use pipe wrenches, extensions or unsuitable tools that may cause damage or water leaks.
•
High temperature flexible hoses are recommended for all connections, however if you are using irons
please ensure that you secure both connections and do not apply more torque than necessary as you may
split in the internal pipework of the boiler or weaken it, both will render the warranty void and increases the
chances of a leak that would not be covered by the warranty.
MAKING CONNECTIONS:
HEATING FLOW & RETURN:
These connections are ¾” for connection to 22mm pipe. Suitable diameter service valves should be installed at
the flow and return to allow the boiler to be isolated for maintenance without draining the entire heating system.
We recommend flexi-hoses as overtightening irons may damage the boiler internals which is not covered under
warranty.
HOT WATER INLET & OUTLET:
(COMBINATION BOILERS ONLY)
These connections are 1/2” for connection to 15mm pipe with service valve on the inlet for flow restriction. We
recommend flexi-hoses as overtightening irons may damage the boiler internals which is not covered under
warranty.
PRESSURE RELIEF VALVE:
The boiler comes with a barb fitting for quick connection in temporary applications, however we recommend
the removal of this to expose a
1
/
2
” female connection, this can then be converted to 15mm copper pipe and
discharged according to current building regulations.
