†
Read Installation Manual Carefully
†
Ensure that there is at least 9 feet head of water pressure at the
top of the boiler.
†
DO NOT remove the dust caps from the air and exhaust pipes
until ready to connect.
†
Ensure that ALL dust particles, filings , plastic chips etc. are
removed from the inlet pipe.
†
If the installation is a replacement the system must be flushed
clean. System should be drained hot, then refilled, then drained
again until the water is clean.
†
Ensure that there is a proper electrical supply ie 230V fused at
10A.
†
Take great care with pipe connections to ensure that no
damage is done to the internal pipework.
†
Ensure that the 22mm condensate pipe is not exposed to
freezing conditions.
†
Make sure that the exhaust pipe terminates away from windows
or vents and is out of reach.
†
Make sure that the air inlet and exhaust pipe outlets are at least
500mm apart.
†
Check tightness of all connections in the boiler before firing.
†
Ensure that the terminals supplied are fitted to both the exhaust
and air inlet pipes.
†
The system must be free from air before firing.
†
The pump must always run when the boiler is firing.
†
Gravity circuits are not allowed.
†
If TRV's are installed on radiators ensure that a bypass is
installed to maintain required flow.
WD 93/0/1997
KESTON CONDENSING BOILERS
IMPORTANT
KESTON 170
INSTALLATION KEY POINTS
