ESBE VTA950 Exchange Kit Instruction Manual
- June 5, 2024
- ESBE
Table of Contents
ESBE VTA950 Exchange Kit
INSTALLATION
All work must be performed by qualified personnel and in accordance with applicable codes and ordinances. After installation, deposit this leaflet with the owner of the valve for future reference.
NOTE! Before dismantling the valve the water supply shouldbe shut off. Where the valve is fitted below the calorifier this should be drained first.
See fig. A, 2-4* for replacement part details.
To clean and/or restore the valve, shut off the water and:
- Remove the cap (1) and the parts 2-4 (Fig. B)
- Remove carefully all scaling (calcium deposits) or foreign particles from all internal parts.
- Assemble the valve with the replacement parts. Assemble the adjustment knob (1) according to Fig. C. Make sure the adjustment screw (2) is in fully open position (i.e. turned fully counter-clockwise). Assemble the adjustment knob with its maximum temperature marking towards the index point. Only silicone grease approved for drinking water applications is allowed to be used.
- Adjust the temperature. (Fig. D)
TEMPERATURE ADJUSTMENT
To set the mixed water temperature, follow the steps described in Fig. D. Make sure to verify the set temperature by measuring the water temperature at the tap closest to the valve. Series VTA520, VTA550, VTA530, VTA560, VTS520 and VTS550:
- Temperature markings on knob are valid at incoming cold water temperature of 15-20°C and hot water temperature of 70°C. The temperature should be checked annually to ensure that the setting of the valve is correct.
- Hard water conditions may result in scale deposits causing sticking of internal parts in extreme cases. Cleaning the internal parts will usually restore the valve to proper operating conditions.
- It may be necessary also to clean the seat and/or to exchange the thermostat.
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