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THERMOSTATIC MIXING VALVES
D1088 & D1089
INTRODUCTION
Are self-acting Thermostatic Mixing Valves designed to blend hot and cold water, to ensure a
constant, safe outlet temperature and prevent scalding.
•
Design and manufactured to comply with
BS EN1287 and BS EN1111.
•
Have been independently tested and
certified as meeting the requirements of the
D08 specification under the TMV3 scheme.
•
The D1089 includes right angle isolation
valves.
•
Both the D1088 & D1089 thermostatic
mixing valves are certified under the
BuildCert TMV2 & TMV3 schemes and are
WRAS approved products listed in the
WRAS Approvals Directory:
-
BuildCert Approval Number (TMV3):
BC1802/1016 (for TMV3)
-
BuildCert Approval Number (TMV2):
BC1801/1016 (for TMV2)
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WRAS Scheme Approval Number:
1301096 (WRAS)
INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS
D1088
D1089
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Summary of Contents for Crane D1088
- Page 1 D08 specification under the TMV3 scheme. • The D1089 includes right angle isolation valves. • Both the D1088 & D1089 thermostatic mixing valves are certified under the BuildCert TMV2 & TMV3 schemes and are D1088 WRAS approved products listed in the...
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Page 2: Technical Specification
For D1089, strainers are supplied and located in the isolation valve body. TMV3 The D1088 and D1089 have been approved as TYPE 3 valves under the TMV3 scheme. They have been designed and manufactured for use in Healthcare and Commercial installations and complying with NHS Estates requirements D 08. -
Page 3: Conditions Of Use
If either the cold or hot fail safe function does not operate, check; Supply pressures Figure 2 - D1088 pictured, Supply temperatures temperature setting Hot water supply is at least 10ºC above required mix temperature, i.e. minimum hot to mix temperature THERMOSTATIC MIXING VALVES: D1088 & D1089... - Page 4 Use recording equipment such as a thermometer etc. used for the measurements. Table 4 - Guide to Maximum Stabilised Temperatures Recorded During Site Tests Application Mixed Water Temperature Bidet 40°C Shower 43°C Washbasin 43°C Bath (44°C Fill) 46°C Bath (46°C Fill) 48°C THERMOSTATIC MIXING VALVES: D1088 & D1089...
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Page 5: In Service Testing
Note: In-service tests should be carried out with a frequency, which identifies a need for service work before an unsafe water temperature can result. In the absence of any other instruction or guidance, the following procedure described in Annex F of D08 may be used. THERMOSTATIC MIXING VALVES: D1088 & D1089... - Page 6 The general principle to be observed after the first 2 or 3 in-service tests is that the intervals of future tests should be set to those which previous tests have shown can be achieved with no more than a small change in mixed water temperature. THERMOSTATIC MIXING VALVES: D1088 & D1089...
- Page 7 BS EN1287 and BS EN1111. It has been independently tested and approved as a TYPE 2 valve under TMV2 scheme for use in domestic situations. LIMITS OF USE The D1088 & D1089 have been approved for use on the following designated systems. Table 5 - Mixed Water Temperature Code...
- Page 8 Hot water supply is at least 10ºC above required mix temperature, i.e. minimum hot to mix temperature • TMVs shall be located in such a way that it can be easy accessed for maintenance and commissioning purposes. THERMOSTATIC MIXING VALVES: D1088 & D1089...
- Page 9 The mixed water temperature at the terminal fitting must never exceed 46°C. Table 7 - Guide to Maximum Stabilised Temperatures Recorded During Site Tests Application Mixed Water Temperature Bidet 40°C Shower 43°C Washbasin 43°C Bath (44°C Fill) 46°C THERMOSTATIC MIXING VALVES: D1088 & D1089...
- Page 10 2°C above the designated maximum mixed water outlet temperature setting of the valve. The installation of thermostatic mixing valves must comply with the requirements of the Water Supply (Water Fittings) Regulations 1999. THERMOSTATIC MIXING VALVES: D1088 & D1089...
- Page 11 Main spring Tailpiece Wafer Strainer Olives O-ring Figure 5 - D1088 pictured, exploded views Compression Nut Isolate hot and cold water supply. Remove the valve to a clean working area. Remove the protective cap. Unscrew the headwork of the valve.
- Page 12 FAX: +44 (0)1473 277301 Every effort has been made to ensure that the information contained in EMAIL: enquiries@cranefs.com this publication is accurate at the time of publishing. Crane FS assumes no responsibility or liability for typographical errors or omissions or www.cranefs.com for any misinterpretation of the information within the publication and reserves the right to change without notice.
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