Product specifications

4.8 Condensate disposal

The appliance is provided with a 25 mm flexible pipe from its

condensate trap. As given in §Error! Reference source not found.,

this should be inserted into an open waste pipe of not less than 32 mm

diameter, together with the safety discharge pipe. The condensate is

slightly acidic (pH between 3 and 6) and should be disposed of in the

following ways, using suitable plastic waste pipe (Note: copper or steel

must not be used):-

• internal stack pipe (see diagram)

• waste pipe (see diagrams)

• external drain or gulley

• purpose made soak-away

The pipe work must incorporate a minimum fall of 2.5 degrees (or

44mm/metre) towards its point of termination. Condensate pipe work

external to the property, or in an unheated space (eg a garage), must be

protected against freezing through the use of pipe insulation and trace

heating. Atmos can supply trace heating.

If an external drain or gulley is used, then the open end of the pipe

should be terminated below the grid level, but above the water level.

If a proprietary soak-away is used, install at least 1 metre away from the

external wall and clear of foundations and services. The soak-away is

buried in the ground and surrounded by limestone chippings to

neutralise the condensate.