Bristan Oval Tap Series Installation Instructions & User Manual Download Page 4

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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 ---- OL ½ C, OL ¾ C, OL EBASNW

OL ½ C, OL ¾ C, OL EBASNW

C, OL TBAS C, OL 1HBF C, OL BF C, OL

C, OL TBAS C, OL 1HBF C, OL BF C, OL
BSM C

BSM C

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

IRN R006

IRN R006 ---- OL ½ C, OL ¾ C, OL EBAS C, OL

OL ½ C, OL ¾ C, OL EBAS C, OL

EBASNW C, OL TBAS C

EBASNW C, OL 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

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

Size of tap or combination
fitting.

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

installation in any premises to protect against
a backflow risk up to a Fluid Category 5.

IRN R010

IRN R010 ---- OL EBAS C, OL EBASNW C, OL

OL EBAS C, OL EBASNW C, OL

TBAS C, OL BF C Schedule 2

TBAS C, OL BF C 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.

IRN R040

IRN R040 –

––

– OL BSM C

OL 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

For backflow protection in domestic or
installations up to, and including, Fluid

installations up to, and including, Fluid

installations up to, and including, Fluid
Category 3.

Category 3.

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 backflow protection in premises or

For backflow protection in premises or
installations up to, and including Fluid

installations up to, and including Fluid

installations up to, and including Fluid
Category 5.

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.

IRN R070

IRN R070 –

––

– OL BID C

OL 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.

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