8
1058907-W2-J
INSTALLATION
General
Installation must be carried out in accordance with these instructions and must
be conducted by designated, qualified and competent personnel.
Before commencing, make sure that the installation conditions comply with the
information given in section:
'Specifications'
. For Type 3 valves see also Installation
conditions in The TMV3 Requirements Manual.
The installation must comply with the “Water Supply (Water Fittings)
Regulations or Scottish Byelaws” or any particular regulations and practices,
specified by the local water company or water undertakers.
1.
Care must be taken during installation to prevent any risk of injury or
damage.
2.
The hole in the basin must be a minimum of 26 mm up to a maximum of 36 mm
diameter, with a basin thickness of 30 mm maximum.
3.
The Thermotap-3 should be positioned for easy access during use and
maintenance. All routine maintenance procedures can be conducted with the
Thermotap-3 body in place.
4
. Inlet pressure tappings which allow measurement of the inlet pressures to
the mixing valve under operating conditions are particularly recommended for
healthcare applications with Type 3 valves.
5.
Pipework dead-legs should be kept to a minimum. The overall length from the
hot water circuit to the discharge point should not exceed 5 m.
6.
Supply pipework layout should be arranged to minimise the effect of hydraulic
restriction or other outlet usage upon the dynamic pressures at the Thermotap-3
inlets. Recommended minimum supply line pipe diameter is 8 mm.
7.
For
Dynamic Supply Pressures
below
0.4 bar
we recommend removal of the
flow regulators to allow increased flow.
8. To eliminate pipe debris it is essential that supply pipes are thoroughly
flushed through before connection to the Thermotap-3.
