Baxi Fourtech Series Operating And Installation Instructions page 48

16.4 DIMENSIONS OF SEPARATE OUTLETS
16.5 SEPARATE HORIZONTAL FLUE TERMINALS INSTALLATION OPTIONS
IMPORTANT -
Make sure there is a minimum downward slope towards the outside of 1 cm per metre of duct length.
If the condensate collection kit is installed, the discharge duct must slope down towards the boiler.
L max = 10 m (L1 + L2) max = 30 m
N.B.:
For the C52 type, do not fit the flue and air duct terminals on opposite walls of the building. The inlet flue must
have a maximum length of 10 metres for C52 fumes outlets.
If the discharge duct is longer than 6 metres, install the condensate collection kit, supplied as an accessory, near the
boiler.
16.6 SEPARATE VERTICAL FLUE INSTALLATION OPTIONS
L max = 15m L max = 14 m
INSTRUCTIONS FOR FITTERS 926.116.5 - en
48