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Installation Requirements

IMPORTANT

IMPORTANT ---- PLEASE READ

PLEASE READ

This/these fitting/fittings needs/need to be

This/these fitting/fittings needs/need to be
installed in accordance with the following

installed in accordance with the following

installed in accordance with the following
Installation Requirements and Notes (IRN)

Installation Requirements and Notes (IRN)

Installation Requirements and Notes (IRN)
to ensure they meet the requirements of

to ensure they meet the requirements of

to ensure they meet the requirements of
the Water Supply (Water Fittings)

the Water Supply (Water Fittings)

the Water Supply (Water Fittings)
Regulations 1999 and the Scottish Byelaws

Regulations 1999 and the Scottish Byelaws

Regulations 1999 and the Scottish Byelaws
2004.

2004.

IRN R001

IRN R001 ---- QD ½ C, QD ¾ C, QD SMBAS C,

QD ½ C, QD ¾ C, QD SMBAS C,

QD EBAS C, QD EBASNW C, QD TBAS C,

QD EBAS C, QD EBASNW C, QD TBAS C,
QD BF C, QD BSM C

QD BF C, QD BSM C

QD BF C, QD BSM C
See text of entry for Installation
Requirements or Notes.

IRN R005

IRN R005 ---- QD BF C, QD BSM C

QD BF C, QD BSM 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

IRN R030

IRN R030 ---- QD BSM C

QD BSM C

QD BSM C ---- Schedule 2

Schedule 2

Schedule 2----15 (1)

15 (1)

Multiple inlet fittings installed in domestic
premises or in other premises to protect
against a backflow risk up to a Fluid
Category 3, incorporating a self cancelling
diverter acceptable as a backflow prevention
device (HC) and having an AUK2 or AUK3 air
gap, shall be installed in accordance with
IRN R010.

Multiple inlet fittings installed in premises
other than domestic to protect against a
backflow risk up to a Fluid Category 5,
incorporating a self cancelling diverter
acceptable as a backflow prevention device
(HC only) and having an AUK2 or AUK3 air
gap, shall be installed in accordance with
IRN R010. Alternatively the fitting shall be
supplied in accordance with IRN R040 unless
the shower head is constrained above the

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 R006

IRN R006 ---- QD ½ C, QD ¾ C, QD SMBAS C,

QD ½ C, QD ¾ C, QD SMBAS C,

QD EBAS C, QD EBASNW C, QD TBAS C

QD EBAS C, QD EBASNW C, QD TBAS C
This tap or combination tap assembly has a
Type AUK3 air gap and is therefore for
installation in any premises to protect against
a backflow risk up to a Fluid Category 5.

IRN R010

IRN R010 –

––

– QD SMBAS C, QD EBAS C, QD

QD SMBAS C, QD EBAS C, QD

EBASNW C, QD TBAS C, QD BF C

EBASNW C, QD TBAS C, QD BF C
Schedule 2

Schedule 2

Schedule 2----15 (1)

15 (1)

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

‘Listed’ single check

valve

valve or some other no less effective backflow
prevention device shall be fitted immediately
upstream of both hot and cold water inlets.

the shower head is constrained above the
spill-over lever of the bath, wash basin or
shower tray.

IRN R070

IRN R070 –

––

– QD BID C

QD BID C

The water supply (Water Fittings)
Regulations 1999 and the Water Bylaws
2000, Scotland preclude the connection of
rim feed ascending spray type bidets with
hand – held spray attachments directly to
any supply pipe.

Continued overleaf.