Thermostatic/Pressure balanced mixer 9000-series

Thermostatic/Pressure balanced mixer 9000-series
TMV 2 with
Requirements TMV 2
Thermostatic/Pressure balanced mixer
TMV 3 with
NHS Requirements.
Rev. 001 – 09.11
Operating instructions
The left knob controls the water flow rate. The right knob
controls the water temperature. Turned clockwise the mixer
will provide cold water. The more it is turned anti-clockwise
the warmer water is supplied. After one complete turn, the
override button must be pressed in order to obtain warmer
water. The knob can be turned another 1/2 turn after releasing
this safety device. The delivered water will then be
warmer than normally needed for bath or shower.
The mixer is also available with temperature knob without
override button (for limited temperature regulation) and with
a cover instead of a knob (for fixed temperature setting).
Closing and flow control knob
Override button
Diverter button
control knob
Changing over to the shower outlet
(Tub mixers)
When the valve is opened, the water is supplied through the
spout. If instead water from the shower is desired, the diverter
button is pulled upwards. When the valve is shut off, the diverter automatically resets to spout flow. Tub mixer FMM 9203
is not equipped with a connection for shower.
The temperature is regulated in the mixer by a temperature
control and pressure balanced interplay. The pressure balancing piston, operating inside the regulating shuttle, is first
handling the cold and hot water. The piston continuously
finds the position where cold and hot water gets equal pressures when entering the temperature regulating function.
The position of the regulating shuttle is controlled by the
temperature knob, or by the spindle for fixed temperature
setting. The sensor element is located between the shuttle
and the knob and compensates for the temperature fluctuations of entering cold and hot water from the supply.
The outgoing mixed water is delivered with an even, stable
Hot water Cold water
Pressure balancing
Temperature knob
Regulating shuttle
Sensor element
Tested and approved by FM Mattsson.
Every mixing valve is tested and approved.
The mixing valves are subjected to the following test:
- Tightness test with open and closed flow control.
- Tightness test of hot and cold water seat.
- Fail safe test.
- Cold water pressure 100 kPa > hot water pressure ­–­Checking the mixed water temperature.
- Hot water pressure 100 kPa > cold water pressure – Checking the mixed water temperature.
Shower outlet
It is not necessary to attach filters, check-valves, pressure or
thermostatic balancing devises as these functions are integrated
in the mixer.
Stop valves can be installed on the supply connections before the
mixer to simplify service or if it is demanded by domestic codes.
Hand-shower holder
A hand-shower holder is available for the mixer. It is attached to
the outlet, between the mixer and the hose.
Rinse the supply pipework!
Flush the supply pipework before attaching the mixer eliminates
the risk of filter clogging from unwanted impurities from the
Hand-shower holder
Override button
(No overrride button
on TMV3)
Make sure that the connections are tight.
Checking the delivered water temperature
With the temperature knob turned to the stop position, (without
pressing the override button) the water temperature delivered
should be just right for shower and bath. (appr. 36-38°C). The
mixers are delivered, calibrated to provide this temperature with
a hot water at 60-65°C and a cold water temperature at 10-15°C.
If the provided water is too hot or too cold with the temperature
knob in the stop position, with the override button unpressed, a
recalibration is necessary. The procedure is as follows:
- Open the valve with the flow control and set the temperature,
to the stop (unreleased override button position) desired level. It
may be necessary to press the override button. Close the water
flow: (It is not necessary to shut off the main supply.)
- Remove the centre cap with a screwdriver. Dismount the screw,
and pull the knob straight out without moving the desired setting.
Guidance ring
Centre cap
- Replace the knob, now with the override button uppermost.
Fit the lug inside the knob to the right of the guidance ring
stop. See illustration.
- Reassemble and tighten the screw, attach the centre cap.
- Check the delivered water temperature.
Note that the temperature, with the knob in it´s upper stop
position, must not exceed 46°C.
For mixers installed in any UK National Health Service Installation (TMV 3), see enclosed NHS
Please note that these mixing valves are not equipped with knob with override button, but are set to the
desired maximum temperature.
If the tub outlet does not provide the correct temperature, the mixer needs to be recalibrated on the
shower outlet, with a following check of the tub outlet.
Safety regulations
Injurious risk!
Injurious risk!
Injurious risk!
Injurious risk!
Never remove the guidance ring, (inside the temperature knob) it is a
protection against too hot water.
Never calibrate the mixer with a too low temperature on hot water inlet.
If the hot water temperature later is increased, the mixed water temperature
will follow, and a recalibration will be necessary.
If the temperature knob is turned past the stop, (after pressing the override
button) the provided mixed water temperature is higher than what
normally is required for a shower or bath.
Never unscrew a connection on the mixer without having shut off the main
supply stop valve.
Filter (coarse)
Connection nut
Check valve
T/P cartridge Spindle
Guidance ring
Centre cap
6077- 0000
Function defect remedy
In order to guarantee the mixer´s function, the connected water
pressures and temperatures must meet the range within the given
limits in Technical Data.
If installed in low pressure systems, make sure that the pressures
are higher than 50 kPa.
If the mixing valve does not deliver sufficient amount of water or
if the temperature regulation or tempera- ture stability is disturbed, start by cleaning the filters.
If this action is not effective replace the regulation cartridge.
Cleaning the filters
150 c/c mixing valves
- Close the main supply valve and disconnect the mixer.
- The inlet filters are found in the connection nuts.
- Dismount the regulation cartridge, see ”Regulation cartridge
- Pull off the filters from the cartridge. To remove the large filter
the o-ring must first be dismounted.
- Clean all the filters (replace if necessary) and reassemble the
- Refit the inlet filters into the connection nipples.
- Refit the mixing valve and open the main supply valve.
- Adjust the temperature override limit, see ”Check-ing the
delivered water temperature”.
40 c/c mixing valves
Close the main supply valve before the inlet tubes are disconnected and removed to allow access to the inlet filters. They are
found in the inlet adapters. The T/P cartridge filters are accessible just as described for 150 c/c models.
Regulation cartridge replacement
- Close the main supply valve.
- Remove the centre cap and screw on the temperature knob. Pull the knob straight out.
- Mark the positioning of the guidance ring (in relation to the body) and pull it off.
- Unscrew the T/P cartridge as follows: Press in the spindle
[A] and hold it firmly in place to prevent it from rotating.
Screw the nut [B] into place using FM Mattsson’s service
tool ( 6077-0000) (see illustration).
- Dismount the regulation cartridge and install the new
one in reverse order.
- Open the main supply valve and set the override temperature limit, see ”Checking the delivered water temperature”.
40 c/c mixing valves
T/P cartridge with spindle
Dismounting and attaching
the T/P cartridge head piece.
Check valve replacement
150 c/c mixing valves
- Close the main supply valve and disconnect the mixer.
- Unscrew the connection nipples. NOTE! The nipples are
left hand threaded.
- Pull out the check valve from the connection nipple.
- Insert the new check valve into the connection nipple and refit the parts.
- Refit the mixing valve and open the main supply valve.
40 c/c mixing valves
The check valves are placed in the inlet connectors. It is not
necessary to dismount the mixer, but close the main supply
valve before the inlet tubes are disconnected. Unscrew the
inlet connectors with a 10 mm hex socket wrench and replace the check valves. Insert the new check valves with the
seat and the o-rings inwards to the connector. Reassemble
all parts and open the main supply valve.
Shower - Spout diverter
Regular inspection and maintenance
If malfunction occurs in the
spout-shower diverter, it most
likely needs cleaning or
- Disconnect the hose from the
- Unscrew the diverter button.
Carefully secure the interior
piston of the diverter cartridge
from below with a screwdriver.
- Unscrew the cartridge downwards (12 mm hexagon key).
- Clean or replace the diverter
cartridge, and reassemble in the
reversed order.
Check the mixer function at regular intervals, minimum once every year. Make sure that the correct temperature is obtained from
the mixer. If it is equipped with a temperature knob, the regulation function is tested by turning the knob towards cold and towards hot. By sensoring the mixed water it is determined that the
water is becoming colder/hotter relative to the turning direction
of the knob. Also make sure that sufficient flow is supplied from
the mixer. If the mixer is not operating satisfactory see ”Function
defect remedy”.
Packing (tap disc) replacement
Cleaning the aerator
The mixing valve finish is best preserved by regular cleaning
using a soft rag and soap solution, washing with pure water and
polishing with a dry rag. Do not ever use lime dissolvents, acidic
or grinding deter-gents. Use household vinegar to remove lime
spots and wash with water. The powder coated surfaces may not
be exposed to acetone or caustic solution.
The mixing valve is provided with only one packing. If the
valve drips, replace the packing immediately.
- Close the main supply valve.
- Remove the centre cap and screw on the left hand knob. Pull the knob straight out.
- Dismount the flow control head.
- Replace the tap disc and refit the parts.
- Open the main supply valve.
Unscrew the aerator every now and then and clean the insert from
impurities. If the insert is affected by lime deposits, wash with
vinegar solution.
No aluminium chloride, hydrochloric acid or
phosphoric acid on chrome
The chrome plated surface on the mixers is not re- sistant to
aluminium chloride. Dark spots will arise. Aluminium chloride
is used against perspiration. When cleaning the tiles with hydrochloric acid, the mixers must be protected. Hydrochloric acid dissolves chromium. Phosphoric acid can be present in very concentrated detergents and damages the chromium surface layer.
Centre cap
Tap disc
Flow control head
Technical data
Cold water supply temperature Hot water supply temperature Water supply pressure
Recommended operating pressure
Max. test pressure
Min. flow rate
Temperature difference between
hot water and mixed water
50-1000 kPa.
100-500 kPa.
1600 kPa.
4 lit./min.
Min. 10ºC.
The mixer body in dezincification resistant (DR)
brass, chrome-plated or powder-coated. Knobs in
plastic, standard version chrome-plated.
150-153 c/c mixers: Inlet internal G3/4.
Outlet external G1/2.
40 c/c mixers and concealed mixers:
Inlet and outlet external G1/2.
Pressure drop
Shower outlet
.02 .03
.05 .07 .1
FM Mattsson, Box 480, SE-792 27 MORA, SWEDEN
.3 .4 .5 .7
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