PRE - INSTALLATION
11
CONDENSATE PIPEWORK
CONDENSATE PIPEWORK:
•The condensate pipe must be a minimum of 22mmØ plastic pipe.
•The condensate pipework must fall at least 50mm per metre towards the outlet and should take the shortest practicable route.
•The pipework must follow one of the options shown opposite into an internal serviceable trap (min. 75mm) such as a sink/washing machine) or discharge direct into a vent stack (E) 450mm min. above pipe invert or into a gulley (D) below ground but above the water level.
•Use waterproof pipe insulation in exposed positions and for external pipework.
IMPORTANT: Ensure there are no blockages in the pipe run.
1 Internal sink/washing machine drain
2 Internal waste drainage system
3 Soil/vent stack
4 External drainage system
5 External condensate absorption point
A - Condensate from boiler
B - Sink
C - 22mmØ plastic condensate pipe D - Gulley
E - Internal soil and vent stack
F - Serviceable waste trap (75mm min)
G - 300mm x 100mmØ sealed plastic tube H - Ground level
J - Drainage holes 50mm from base of tube (12mmØ at 25mm centres) facing away from building
K - Limestone chippings
CONDENSATE PIPEWORK
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior 8 716 107 336b (11/05)
