Thermostatic Mixing Valve FAQs
WHERE CAN I READ MORE ABOUT MY LEGAL RESPONSIBILITIES REGARDING SAFE HOT WATER?
MY SYSTEM IS WITHIN THE REQUIRED LIMITS FOR THE VALVE BUT I CANNOT ADJUST THE TEMPERATURE, WHAT IS THE MOST LIKELY CAUSE OF THIS?
There are two likely explanations: firstly, some of our TMV Range feature anti-tamper caps which free spin. These pop off and the adjustment spindle is directly below. Secondly, the feeds may be cross-connected.
CAN YOUR TMV RUN X AMOUNT OF OUTLETS?
This depends on the legislation attached to the sort of property that is being worked on, however, it is also dependant on how much water the system can provide and how much pressure it is providing it with and the limits of the valve selected for the job.
ARE THE TMVs PROVIDED AT A FACTORY SET TEMPERATURE?
No, as it is impossible to predict what the Valve will be attached to, please follow the commissioning instructions provided and the desired temperature can be set on installation.
ARE THE TMVs APPROVED TO WRAS, TMV2 OR 3 STANDARDS?
We have TMVs accredited to all of these standards, please ask Sales for the Valve most appropriate to your requirements.
DOES IT MATTER WHICH WAY UP MY TMV IS ALIGNED?
No, as long as the Feeds are correctly orientated for the Valve (IE hot Pipe into hot Inlet etc.) the valve will work equally well, whichever way up it is.
WILL FLUSHING / DISINFECTING MY SYSTEM WITH THE TMV “IN SITU” AFFECT THE PERFORMANCE OF THE TMV?
We have noted in the past that certain disinfectant chemicals may wholly or partly remove the lubricant from the thermostatic Mixing Valve. We strongly recommend that the valve is checked for performance after flushing and re-lubricate / service if necessary.
ARE NON-RETURN VALVES AND FILTERS INCLUDED IN THE TMV DESIGN?
All of our point of use valves feature non-return valves and filters. We also have a range of Group TMVs which have optional Non-Return Valves built into the Unions if required.
CAN THE TMVs BE USED ON UNDER FLOOR HEATING?
Yes, but the normal blended outlet temperature range is disregarded, only a temperature between flow and return incoming temperatures can now be achieved.
THE VALVE IS STOPPING ALL FLOW OF WATER, WHAT ARE THE MOST LIKELY CAUSES OF THIS?
Firstly, check that both the Hot and Cold Feeds are providing water to the TMV, if not the TMV may be “Fail-safe-ing”. Secondly, look at the Non-Return valves and Filters to ensure they are not clogged or jammed.