Installation - Watts Industries TX91 Bedienungsanleitung

UK

1 - INSTALLATION

1 - 1 I
MPLEMENTING OF THE THERMOSTATIC MIXING VALVE
l Draw the site of the thermostatic mixing valve on the wall.
l Position it.
1
1 - 2 C
ONNECTING . Figure 1
l When the outlet is in horizontal position, the hot water has to be
connected on the left side and the cold water on the right side.
l Connect the mixed water outlet.
l Recommended pipings with a velocity of 2 m/s (see marks).
l Foresee an accessible stop valve on each piping.
1 - 3 R
INSING AND PUTTING INTO WATER
l Next it is essential to rinse the pipes and thermostatic mixing valve
(see rinsing instructions and kit delivered in this box).
l Refit the mechanism 2 .
1 - 4 T
RIMMING OF THE MIXER
l Refit the cover-cartridge 2 and its screws 3 .
1 - 5 T
EMPERATURE SETTING
l Open the two water supplies once again.
l Calibrate the temperature. Figure 8
- Turn the cover to one of the four possible positions.
- Run the water at normal temperature of use by operating the axle
of the thermostatic mixing valve.
- Measure the temperature with a thermometer.
- Place the knob on the axle.
- Match the graduation for the temperature measured with the cover
indexing.
To set the required temperature limits : Figure 9
l Turn the knob until the corresponding graduation is opposite the
index.
l Move the metal strip into the slot immediately :
- to the left for the maximum temperature,
- to the right for the minimum temperature.
1 - 6 C
LOSED CIRCUIT WITH BOOSTER
l The return of the mixed water must be distribued between the cold
water (± 80%) and the hot water production (± 20%) by micrometric
valves, see diagram page 3.
. Figures 2 to 7
.
. V I
ERY MPORTANT
6
F
. LOW DIAGRAM FOR A COMPLETE MIXED WATER CIRCUIT
See diagram page 3
VM1 - VM2 - Micrometer valves to stabilise circuit temperature.
VM1 A - Open between 70 and 90% - VM1 B - Open between 30 and 10%.
Remarks :
1. If there is a restart point on the water container (R) the return circuit should be
connected here (A).
2. It may be useful to have two VM2, micrometer valves, especially for installation
renovation : the pump will not have to take the additional loss of load from the
mixing valve into consideration. In this case, VM1A and VM1B are unnecessary,
adjustment will be carried out on VM2 valves.
VM2 C - Open between 70 and 90% - VM2 D - Open between 30 and 10%.
Note : Other variations are possible. For example, for several circuits at equal or
different temperatures.
2 - CHARACTERISTICS
2 - 1 W
ATER SUPPLY
The thermostatic mixing valve can be supplied with any system of hot
water production, even by instantaneous production, insofar as the gene-
rator stays capable to produce a very low hot water flow.
- Max. running pressure : 10 bar.
- Min. running pressure : 1 bar.
- Recommended running pressure : 2-4 bar.
- Cold water temperature : 5 - 20°C.
- Hot water temperature : 55 - 85°C.
- Max. hot water temperature : 85°C.
- Min. difference between inlet temperatures : 5°C.
For circulating loop and recirculation systems :
water – COLD water) must be 35°C (according EN1111 standard).
- Max. pressure difference : 1,5 bar.
2 - 2 A -
NTI SCALD SAFETY
Immediate integrated safety in the case of cold or hot water being inter-
∆
rupted ( Hot water / Mixed water >10°C).
2 - 3 O
PTIONS
l Special regulation ranges with knobs 5-40°C, 10-50°C, 30-70°C.
l Special vandal-proof "High Protection" version.
∆
T minimum (HOT