Mira Montpellier Installation, Operation & Maintenance Manual

16, 16 COMMISSIONING Thermostatic mixing valves with wax thermostats are inclined to lose their responsiveness if not used. Valves which have been in storage, installed but not commissioned, or simply not used for some time should be exercised before setting the maximum temperature or carrying out any …

21, 21 Cause/Rectification Seal wear or damage. a. Obtain Seal Kit, renew all seals. a. b. c. d. Symptom 6. Water leaking from mixer body. 7. Flow rate too high or too low. (Too low) Refer to symptom 2.a-e. (Too low) Insufficient supply pressures. (Too high) Supply pressure too high. (T…

9, 9 Connections Montpellier: Inlet connectors are 22 mm compression. Outlet connector is 3/4” BSP Male or 19 mm compression. Standard connections are: Hot (H) and Cold (C) inlets are clearly marked on the base of the mixer and must be connected this way. …

7, Mira Montpellier 7 SPECIFICATION Normal Operating Conditions are considered as: - inlet dynamic pressures nominally balanced to within 10% of each other during flow. - a differential of approximately 50 o C between the hot and cold inlet temperatures, and with differentials of 15-35 o C between t…

22, 22 Planned Maintenance Programmes (Preventative/Precautionary Maintenance) MAINTENANCE General Mira products are precision-engineered and should give continued superior and safe performance, provided: 1. They are installed, commissioned, operated and maintained in accordance with the re…

20, 20 Symptom 1. Only hot or cold water from mixer outlet. 2. Fluctuating or reduced flow rate. 3. No flow rate from mixer outlet. 4. Blend temperature drift. 5. Maximum blend temperature setting too hot or too cold. Cause/Rectification a. Inlet supplies reversed (hot supply to cold supply). b. No h…