Installation Requirements
Installation Requirements
Installation Requirements
Installation Requirements
IMPORTANT
IMPORTANT
IMPORTANT
IMPORTANT ---- PLEASE READ
PLEASE READ
PLEASE READ
PLEASE READ
This/these fitting/fittings needs/need to be installed in accordance with the following Installation
This/these fitting/fittings needs/need to be installed in accordance with the following Installation
This/these fitting/fittings needs/need to be installed in accordance with the following Installation
This/these fitting/fittings needs/need to be installed in accordance with the following Installation
Requirements and Notes (IRN) to ensure they meet the requirements of the Water Supply (Water
Requirements and Notes (IRN) to ensure they meet the requirements of the Water Supply (Water
Requirements and Notes (IRN) to ensure they meet the requirements of the Water Supply (Water
Requirements and Notes (IRN) to ensure they meet the requirements of the Water Supply (Water
Fittings) Regulations 1999 and the Scottish Byelaws 2004.
Fittings) Regulations 1999 and the Scottish Byelaws 2004.
Fittings) Regulations 1999 and the Scottish Byelaws 2004.
Fittings) Regulations 1999 and the Scottish Byelaws 2004.
IRN
IRN
IRN
IRN R001: J ½ C, J ¾ C, J BF C, J BSM C
R001: J ½ C, J ¾ C, J BF C, J BSM C
R001: J ½ C, J ¾ C, J BF C, J BSM C
R001: J ½ C, J ¾ C, J BF C, J BSM C
See text of entry for Installation Requirements or Notes.
IRN
IRN
IRN
IRN R005: J ½ C, J ¾ C, J BF C
R005: J ½ C, J ¾ C, J BF C
R005: J ½ C, J ¾ C, J BF C
R005: J ½ C, J ¾ C, J BF C
This tap or combination tap assembly has a Type AUK2 air gap and is therefore only suitable for
installation in domestic premises or in other premises to protect against a backflow risk up to a Fluid
Category 3, unless additional backflow protection for the higher risk is included in the installation.
IRN R010
IRN R010
IRN R010
IRN R010 ---- Schedule 2
Schedule 2
Schedule 2
Schedule 2----15 (1
15 (1
15 (1
15 (1): J BF C, J BSM C
): J BF C, J BSM C
): J BF C, J BSM C
): J BF C, J BSM C
Water supplies shall be a reasonably balanced pressures from a common source (e.g. hot and cold
supplies both from the same storage or both from a supply pipe). Where the fitting is supplied from
unbalanced supplies (e.g. hot and cold supplies from separate sources) a ‘Listed’ single check valve
‘Listed’ single check valve
‘Listed’ single check valve
‘Listed’ single check valve or
some other no less effective backflow prevention device shall be fitted immediately upstream of both
hot and cold water inlets.
IRN
IRN
IRN
IRN R040
R040
R040
R040 ---- Schedule
Schedule
Schedule
Schedule 2
22
2----15 (1
15 (1
15 (1
15 (1): J BSM C
): J BSM C
): J BSM C
): J BSM C
06
1.
Size of tap or combination fitting.
2.
Vertical distance of outlet above spill-over level.
1. Not exceeding 1/2 in
20mm
2. Exceeding 1/2 in but not exceeding 3/4 in
25mm
3. Exceeding 3/4 in
70mm
IRN
IRN
IRN
IRN R040
R040
R040
R040 ---- Schedule
Schedule
Schedule
Schedule 2
22
2----15 (1
15 (1
15 (1
15 (1): J BSM C
): J BSM C
): J BSM C
): J BSM C
The fitting shall be installed so that its outlet discharges above the spill-over level of any fixed appliance
as indicated below:-
For backflow protection in domestic or installations up to, and including, Fluid Category 3.
For backflow protection in domestic or installations up to, and including, Fluid Category 3.
For backflow protection in domestic or installations up to, and including, Fluid Category 3.
For backflow protection in domestic or installations up to, and including, Fluid Category 3.
If the fitting cannot be installed as indicated in the table it shall be installed:
a) with an approved double check valve assembly or some other no less effective backflow prevention
device immediately upstream of the inlet; or
b) so that it draws water by gravity only from a cistern, or cylinder having a permanently open
vent pipe, and the distributing pipe supplies no other fitting (other than draining tap) at a lower level.
For
For
For
For backflow protection in premises or installations up to, and including Fluid Category 5.
backflow protection in premises or installations up to, and including Fluid Category 5.
backflow protection in premises or installations up to, and including Fluid Category 5.
backflow protection in premises or installations up to, and including Fluid Category 5.
The vertical distance of the outlet above the spill-over level shall be not less than 20mm or twice the
diameter of the inlet pipe to the fitting, which ever is the greater. If the fitting cannot be installed as
indicated it shall be installed with a backflow prevention arrangement suitable for the Fluid Category.