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General
This Product is precision engineered and should give continued safe and controlled
performance, provided:
1.
It is installed, commissioned, operated and maintained in accordance with manufacturers
recommendations.
2.
Periodic attention is given, when necessary, to maintain the product in good functional
order.
The Mira Select Flex Thermostatic Mixer is designed for the minimum of maintenance in
normal use. The only serviceable parts are the inlet filters which should be checked and
cleaned every 12 months. If a malfunction occurs with the Thermostatic Cartridge then this
will necessitate a complete cartridge replacement.
Note! The cartridge contains no internally serviceable parts.
If you require a Rada trained engineer or agent, refer to section: 'Customer Service'.
Planned Maintenance
Important! For Type 3 Valves use the In-Service Tests given in the TMV3 Requirements
Manual. In the absence of any other instruction or guidance on the means of determining the
appropriate frequency of in-service testing, the procedure contained within this guide (taken
from Annex F of D08) should be used. For Type 2 Valves use the In-Service Tests given in
the TMV2 Requirements Manual.
For other commercial installations it is recommended that the correct blend setting is checked
every 6 months and that the In-Service Test procedure is followed every 12 months.
Lubricants
Silicone based lubricants must only be used on the rubber seals.
Caution! Oil based or other lubricant types may cause rapid deterioration of seals.
Cleaning
The chrome plated parts should be cleaned using a mild washing up detergent or soap solution,
rinsed and then wiped dry with a soft cloth.
Warning! Many household cleaners contain abrasive and chemical substances, and should
not be used for cleaning plated or plastic fittings.
Do not use descalents on this product.
Inlet Filters
The inlet filters should be checked and cleaned as necessary every 12 months.
Note! The inlet filters must not be removed except for cleaning. If the thermostatic mixer is
operated without the inlet filters fitted the warranty on the product will be void.
1.
Isolate the hot and cold water supplies and operate the flow control lever to drain any
residual water.
2.
Carefully remove the concealing caps and unscrew the filter plugs with a 5 mm hexagonal
wrench. Remove the filters.
MAINTENANCE
16
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