Watts MINIMIXing User manual
MINIMIXing
Thermostatic mixing valve for point of use
Installation and Operation Manual
wattswater.eu
2MM-IM-FR-W-UK-06-18-Rev.0
9,87
71,7
93,8
31
G 3/8" B ISO228G 3/8" B ISO228
G 3/8" ISO228
FR Ecrou tournant
UK Swivel nut
IT Dado girevole
NL Vrouwelijke moer
DE Überwurfmutter
G 3/8" ISO228
ES Tuerca giratoria
RU Накидная гайка
PL Nakrętka obrotowa
DK Drejemøtrik
Ø15
FR
Raccord compression
UK
Compression fitting
IT
Collegamento a compressione
NL
Knelkoppeling
DE
Klemmkupplung
ES
Conexión de compresión
RU
Компрессионный фитинг
Ø15
PL
Złączka zaciskowa
DK
Kompressionskobling
5,67
93,8
71,7
31
G 1/2" B ISO228
G 1/2" B ISO228G 1/2" B ISO228
Ø42
Ø42
Ø42
71,7
31
93,8
7,29
Raccord
compression
Ø15
Raccord
compression
Ø15
9,87
71,7
93,8
31
G 3/8" B ISO228G 3/8" B ISO228
G 3/8" ISO228
FR Ecrou tournant
UK Swivel nut
IT Dado girevole
NL Vrouwelijke moer
DE Überwurfmutter
G 3/8" ISO228
ES Tuerca giratoria
RU Накидная гайка
PL Nakrętka obrotowa
DK Drejemøtrik
Ø15
FR
Raccord compression
UK
Compression fitting
IT
Collegamento a compressione
NL
Knelkoppeling
DE
Klemmkupplung
ES
Conexión de compresión
RU
Компрессионный фитинг
Ø15
PL
Złączka zaciskowa
DK
Kompressionskobling
5,67
93,8
71,7
31
G 1/2" B ISO228
G 1/2" B ISO228G 1/2" B ISO228
Ø42
Ø42
Ø42
71,7
31
93,8
7,29
Raccord
compression
Ø15
Raccord
compression
Ø15
9,87
71,7
93,8
31
G 3/8" B ISO228G 3/8" B ISO228
G 3/8" ISO228
FR Ecrou tournant
UK Swivel nut
IT Dado girevole
NL Vrouwelijke moer
DE Überwurfmutter
G 3/8" ISO228
ES Tuerca giratoria
RU Накидная гайка
PL Nakrętka obrotowa
DK Drejemøtrik
Ø15
FR
Raccord compression
UK
Compression fitting
IT
Collegamento a compressione
NL
Knelkoppeling
DE
Klemmkupplung
ES
Conexión de compresión
RU
Компрессионный фитинг
Ø15
PL
Złączka zaciskowa
DK
Kompressionskobling
5,67
93,8
71,7
31
G 1/2" B ISO228
G 1/2" B ISO228G 1/2" B ISO228
Ø42
Ø42
Ø42
71,7
31
93,8
7,29
Raccord
compression
Ø15
Raccord
compression
Ø15
Y
Y
1 2
M M
+
+
- -
G 3/8” ISO228
Swivel nut
Compression tting
Ø15
Compression tting
Ø15
W
X
Z
U
Y
B1
B2
B3
Y
Y
Y
Y
X
V
3
MM-IM-FR-W-UK-06-18-Rev.0
0
5
10
15
20
25
30
0,5011,52 2,
53,5
3
Débit (L/min)
Perte de charge (bar)
Flow curve
Flow rate
Head loss ∆P (bar)
L/min
4MM-IM-FR-W-UK-06-18-Rev.0
3 - Operating faults:
Carefully check that any fault really is due to the appliance.
Observed faults Causes and solutions
The water is not running at the right temperature.
Check that the water supply is not cut and that the connec-
tions have been made to the inlets. Was the calibration carried
out properly?
Water runs but slowly. Hot or cold water production is not sufficient.
Blocked or clogged up filter.
When starting the new appliance, only hot or cold water runs. Water inlets are fitted the wrong way round.
Mixed water runs in fits and starts and very slowly except at
one or other extreme temperature.
Hot or cold flow is restricted.
Check that the cartridge filters are clean.
1 - Installation:
On a stopcock (chrome plated) with wall plate.
2 installation possibilities:
- parallel to the wall (diagram 1 page 2)
or
- perpendicular to the wall (diagram 2 page 2).
1-1 Assembly
Connect the hot water inlet (+) directly to the stopcock.
Connect the cold water (-) using a hose or a copper tube.
Connect the outlet (M) to the mechanical mixer inlet.
Provide a stopcock on each inlet.
1-2 Rinsing
[recommended step] (diagram B3 page 3)
Unscrew the screw and remove the cap (W), unscrew the nut
(X), remove the cartridge (Z).
Fit the rinsing kit (V) instead of the cartridge and re-tighten the
nut (X).
Supply hot and cold water, rinse the piping by letting the water
flow abundantly.
Turn off the hot and cold water, then unscrew the nut (X) and
remove the rinsing kit (V), refit the cartridge (Z) and re-tighten
the nut (X).
1-3 Adjusting the temperature
[factory set to 38°C] (diagram B2 page 3)
Turn on the water supply to the appliance.
Calibrate the temperature:
- Run the water at the required temperature by turning the ad-
justment ring (Y) in the direction shown by the arrow and using
the temperature marks.
- Note the temperature obtained using a thermometer.
- Remove the adjustment ring (Y) to position the temperature
indicated on it opposite mark (U) on the nut (X) corresponding
to the temperature obtained.
1-4 Refitting the casing
Once the temperature has been set, refit the cap (W) and refit
the safety screw.
2 - Features:
2-1 Flow rate at 3 bar
28 Liters / min
2-2 Supply
The thermostatic mixing valve may be fed by any hot water
heating system, even an instant household heater, provided
that the boiler remains capable of producing very low hot water
flows (3l / min).
- Maximum working pressure: 10 bar
- Minimum working pressure: 1 bar
- Recommended working pressure: 2 to 4 bar
- Maximum hot water temperature: 85°C
- Minimum difference between input temperatures: 10°C
- Maximum pressure difference between hot and cold water:
1,5 bar
- Temperature setting range: 30 to 70°C
- Hot, cold and mixed water connections in flat-sealing
construction only for Art.No. 2297320M2 / 2297321M2.
MM-IM-FR-W-UK-06-18-Rev.0
WATTS INDUSTRIES France
1590 avenue d’Orange • SORGUES 84275 VEDENE • FRANCE
Tél. +33 (0)4 90 33 28 28 • Fax +33 (0)4 90 33 28 29/39
[email protected] • www.wattswater.fr
© 2018 Watts
« The descriptions and photographs contained in this product specication sheet are supplied by way of information only and are not binding. Watts Industries reserves the right to carry out any
technical and design improvements to its products without prior notice. Warranty: All sales and contracts for sale are expressly conditioned on the buyer’s assent to Watts terms and conditions
found on its website at www.wattswater.eu - Watts hereby objects to any term, different from or additional to Watts terms, contained in any buyer communication in any form, unless agreed to
in a writing signed by an ofcer of Watts. »
4 - Maintenance:
4-1 Maintenance
4-1-1 Checking the element:
If the flow is reduced or if the temperature fluctuates, check the
condition of the element. If necessary, clean and descale the
element with weak diluted acid.
Clean the filters. If this does not work, replace it (4-2).
4-1-2 Draining in the event of freezing:
When the appliance is exposed to frost, it is essential to empty
it and remove the element, taking off the element. Once the ins-
tallation is emptied, put the element back place after lubricating
it with a silicon grease.
4-2 Replacing the mechanism
Close the hot and cold water inlet stopcocks, then turn the taps
on and off to lower the pressure inside the appliance.
Proceed as indicated in the INSTALLATION part starting from
1-2 Rinsing.
Make sure the mechanism is correctly fitted in the box.
Disinfecting procedure for fighting against legionnaire’s
disease,
2 possible methods:
- Thermal ash:
Run hot water through the mixer tap (bacteria is eliminated from
60°C).
Remove the cap (W) after having removed the screw, then turn
the adjustment ring (Y), to the full hot position, the mixer will
deliver very hot water.
- Using the rinsing kit:
Flush using a disinfectant solution or with very hot water (hotter
than 90°C) without risking damage to the appliance.
- Unscrew the screw and remove the cap (W), unscrew the nut
(X), remove the cartridge (Z) then insert the rinsing kit (V) and
re-tighten the nut (X)
- Re-open the hot water stopcock.
- Turn on the tap(s) to circulate the hot water and carry out a
proper thermal disinfection.
Warning: always comply with local regulations concerning
disinfecting procedures, such as wearing suitable
masks and gloves, etc.
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