A. CH pump L. Air supply cap (not te be removed)
B. Gas valve M. Flue pipe adapter (only to be used in combination with the
accompanying elbow in flue sets).
C. Boiler controller N. Connection block / terminal strip X4
D. Sensor S1 O. Condensate drain pan
E. Sensor S2 P. Hot water sensor S3
F. Fan Q. Condensate trap
G. Flow sensor R. Heat exchanger
H. CH pressure sensor S. Operating panel and read-out
I. Mains lead 230 V AC without plug (stripped) T. Ionisation / Ignition electrode
J. Manual air bleed U. Position of data plate
K. Sight glass