Keston Qudos 28s User, Installation And Servicing Instructions page 61

KESTON CONDENSING BOILERS
Qudos 28s and Qudos 28sP
†
Read Installation Manual Carefully
† 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 i.e. 230V fused at
3A for the permanent live.
† 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
200mm 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.
† If TRV's are installed on radiators ensure that a bypass is
installed to maintain required flow.
† Complete the Gas Boiler Commissioning Checklist - Service
Interval Record (Chapter 10).
† Complete the combustion testing (Section 5.7) using a
calibrated flue gas analyser.
WD437/1/2008
IMPORTANT
INSTALLATION KEY POINTS