Glow-worm 18sxi, Installation And Servicing Manual, Page: 18 / 64

18
INTERNAL SOIL
AND VENT STACK
BOILER
MIN. DIA. 21mm
NO RESTRICTION
ON LENGTH
EXTERNAL SOIL
AND VENT STACK
MIN. DIA. 21mm
NO RESTRICTION
ON LENGTH
BOILER
BOILER
MIN. DIA. 21mm
EXTERNAL LENGTH
OF PIPE 3M MAX.
OPEN END OF PIPE
DIRECT INTO GULLEY
BELOW GROUND BUT
ABOVE WATER LEVEL
MIN. DIA. 21mm
NO RESTRICTION
ON LENGTH
BOILER
SINK
(CONSTITUTES
AIR BREAK)
BOILER
MIN. DIA. 21mm
NO RESTRICTION
ON LENGTH
SINK
OPEN END OF PIPE DIRECT INTO
GULLEY BELOW GROUND LEVEL
BUT ABOVE WATER LEVEL.
Ø22mm MIN.
TERMINATION FROM APPLIANCE.
EXTERNAL LENGTH OF PIPE
3M MAX.
25mm MIN.
SEAL
BOTTOM OF
TUBE SEALED
Ø100mm
PLASTIC TUBE
300mm
MIN.
GROUND
(either/or)
500mm MIN.
HOLE DEPTH
400mm MIN.
LIMESTONE CHIPPINGS
2 ROWS OF 3 x 12mm HOLES AT
25mm CENTRES 50mm FROM
BOTTOM OF TUBE. HOLES TO
FACE AWAY FROM HOUSE.
External Soil and Vent Pipe or Rainwater Pipe
Internal Soil and Vent Pipe
External Termination into Soakaway
Internal Termination Downstream of
Sink Waste
Internal Termination into Combined Sink Waste
External Termination to a Gulley or Hopper
*
NOTE: PIPEWORK SHOULD ALWAYS FALL AWAY FROM BOILER BY AT LEAST 2.5
44mm FOR EVERY 1M.
o
EXTERNAL
MAX. 3M
*NOTE: FOR EXTENDED
PIPE RUNS 32mm DIA.
PIPE SHOULD BE USED.
9 Safety Discharge Valve and Condensate Connections
Diagram 9.3
13000