INSTALLATION
Thermostatic mixing valves are temperature sensitive appliances so must not
be subjected to extreme temperatures (either hot or cold) in use or
installation.
BRAZING OR SOLDERING ON OR NEAR THE MAIN VALVE BODY MUST BE
AVOIDED.
The valves should be fitted where they can be easily accessed for
commissioning and maintenance.
Offer up the valve to the system and mark out where the valve is to be fitted.
With the smaller of the provided Allen keys loosen the grub screws securing
the fixing ring to the back of the valve and remove it.
Mark out, drill and rawplug the fixing holes and secure the fixing ring to the
wall (the mounting surface must be strong enough to take the weight of the
valve).
Fit the valve to the fixing ring and tighten the grub screws evenly.
COMMISSIONING
The Euromixer thermostatic mixing valve is supplied factory set at 41°C with
2 bar equal pressures in a non adjustable form. There are three forms in which
this valve can be commissioned:
1. It can be commissioned at any fixed non-adjustable temperature
between 35°C and 50°C.
2. It can be commissioned in an adjustable form with a set maximum
temperature.
3. It can be commissioned in an adjustable form with no preset
maximum temperature.
General
Ensure that both water supplies are turned on and that the hot water
temperature is 55-60°C minimum. Check that the dynamic water pressure on
both hot and cold supplies is within the working parameters of the valve at
the installations maximum and minimum flow rates. If the hot cold and cold
water pressure differential is greater than 2 : 1 then pressure reducing valves
may be required.
w rate
TROUBLE SHOOTING
I CAN ONLY GET HOT OR COLD WATER FROM THE OUTLET?
• Check that the valve is connected up correctly, with the hot
and cold supplies connected the corresponding fittings on
the valve.
• Check that the supplies are both working correctly.
• Check non-return valves and strainers in inlet fittings for
blockages and clean if necessary.
• Check that supply conditions are within those stated in the
working parameters at the beginning of this booklet.
I AM GETTING FLUCTUATING MIXED OUTLET TEMPERATURE?
• Debris is fouling the valve causing it to become sluggish.
Service valve as per maintenance instructions.
• Check non-return valves and strainers in inlet fittings for
blockages and clean if necessary.
I AM GETTING FLUCTUATING AND/OR POOR FLOW RATES?
• Check non-return valves and strainers in inlet fittings for
blockages and clean if necessary.
• Check isolation valves are fully open.
• Check that supply conditions are within those stated in the
working parameters at the beginning of this booklet.
I AM GETTING CROSS FLOW OF HOT WATER INTO THE COLD WATER
SUPPLY OR VICE VERSA?
• Check non-return valves and strainers in inlet fittings for
blockages and clean if necessary.
• Check that supply conditions are within those stated in the
working parameters at the beginning of this booklet.
THE VALVE WILL NOT SHUT DOWN?
• Check that the hot supply to mix temperature differential
is a minimum of that stated in the working parameters.
• Debris is fouling the valve causing it to stick. Service valve
as per maintenance instructions.