Zip AquaFlo II AF6250 Service Manual download pdf (Page 21)

AquaFlo Installation, Maintenance and User Instructions Page 19 of 24 V 2.01 - October / 2012

• Where a single pipe serves a number of discharges, such as in blocks of ats, the number

served should be limited to not more than six systems so that any installation can be traced

reasonably easily. The single common discharge pipe should be at least one pipe size larger

than the largest individual discharge pipe to be connected. If unvented hot water storage

systems are installed where discharges from safety devices may not be apparent i.e. in

dwellings occupied by blind, inrm or disabled people, consideration should be given to the

installation of an electronically operated device to warn when discharge takes place.

Note: The discharge will consist of scalding water and steam. Asphalt, roong felt and

non-metallic rainwater goods may be damaged by such discharges.

Note: It is not acceptable to discharge straight into a soil pipe. See G3 3.60 for guidance.

Diagram of a typical discharge pipe arrangement (extract from Building

Regulations G3).

600 mm

Maximum

Pipe Length

Tundish

Metal Discharge Pipe (D2) From Tundish, with

Continuous Fall

Metal Discharge Pipe (D1) From Temperature

Relief Valve to Tundish, with Continuous Fall

Discharge Below Fixed

Grating

Trapped Gulley

300 mm

minimum

Discharge below xed grating

(G3 3.62 gives alternative points

of discharge)

Safety

device e.g

temperature

relief valve

1 2 ... 16 17 18 19 20 21 22 23 24 25 26

No comments

Zip AquaFlo II AF6250 Service Manual Page 21