12
6
.
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.
7.
Pipework must be rigidly supported.
8.
Pipework dead-legs should be kept to a minimum.
9.
Supply pipework layout should be arranged to minimise the effect of other outlet
usage upon the dynamic pressures at the mixing valve inlets.
10.
Inlet and outlet threaded joint connections should be made with PTFE tape or
liquid sealant. Do not use oil-based, non-setting jointing compounds.
11. To eliminate pipe debris it is essential that supply pipes are thoroughly
flushed through before connection to the mixing valve.
Outlet Position/Reversed Inlets
Rada 215-t3 dk and 222-t3 dk models are readily adaptable for rising or falling pipework;
the flat-faced union connectors provided allow the valve body to accept a variety of
pipework configurations, and to be reversed or inverted as appropriate.
All Rada 215-t3 series mixing valves, except 215-t3 dk, are supplied with inlet
connections configured
hot - left, cold - right
, and
top outlet
as standard. It is
essential that inlet supplies correspond with the red and blue markings on the
Thermostatic cartridge. Should the existing hot and cold pipework make this
configuration inconvenient, or a bottom outlet position be required, the valve inlets or
outlet can be reversed, as detailed below. If both the outlet and inlet positions require
INSTALLATION
General
Installation must be carried out in accordance with these instructions, and
must be conducted by designated, qualified and competent personnel.
1.
Before commencing, ensure that the installation conditions comply with the
information given in
SPECIFICATION
. For Type 3 valves see also Installation
conditions in TYPE 3 VALVES.
2.
Care must be taken during installation to prevent any risk of injury or damage.
3.
The mixing valve should be positioned for easy access during use and
maintenance. All routine maintenance procedures can be conducted with the
mixing valve body in place (except for strainer and checkvalve access on
215-t3 dk and 222-t3 dk). For all models, allow a minimum 80 mm clearance in
front of the temperature control to enable removal of the Thermostatic cartridge
during maintenance.
4.
Conveniently situated isolating valves must be provided for maintenance.
5.
The use of supply-line or zone strainers will reduce the need to remove debris at
each mixing valve point. The recommended maximum mesh aperture dimension
for such strainers is 0.5 mm.
Содержание 215-t3 Series
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Страница 48: ...48 1057616 W2 A Kohler Mira Limited January 2006 CUSTOMER CARE...
