Glow-worm cxi and Gas Valve - Manual (Page 23)

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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.
21MM TERMINATION FROM APPLIANCE
*NOTE: FOR EXTENDED PIPE RUNS 32MM DIA.
PIPE SHOULD BE USED.
2.5 FALL o
25MM
CEMENT MORTAR SEALING
BOTTOM OF TUBE SEALED
100MM PLASTIC TUBE
300MM
HOLE DEPTH
400MM
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.
0
EXTERNAL
MAX. 3M
*NOTE: FOR EXTENDED
PIPE RUNS 32MM DIA.
PIPE SHOULD BE USED.
Diagram 8.3
Typical Gravity Draining Condensate Installations
12333
8 Safety Discharge Valve and Condensate Connections