VALSTEAM ADCA MX20 Installation And Maintenance Instructions Manual

Mixing valve

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GENERAL
These instructions must be carefully read before any work involving products supplied by VALSTEAM ADCA
ENGINEERING S.A. is undertaken.
The installation procedure is a critical stage in a life of the equipment and care should be taken to avoid damage to
the equipment.
Current regional safety regulations should be taken in to account and followed, while doing the installation and
maintenance work.
Handling, installation and maintenance work must be carried out by trained personnel. A supervisor must follow and
check all activities.
For the problems that cannot be solve with the help of this instructions, please contact the supplier or the
manufacturer.
1. SAFETY NOTES
This equipment is intended to be used exclusively in industrial installations, and is not prepared for use in domestic
applications.
The steam/water Adcamix mixers provide cheap, instant source of low pressure hot water by using existing steam
and cold water supplies. The mixer incorporates a safety device to ensure that live steam cannot be accidentally
ejected, even if for some reason the cold water supply fails. They give their maximum performance only when the
equipment associated with them is correctly sized and installed in accordance with our recommendations.
To ensure the correct function of the safety internal device of the mixer, it should be guaranteed the correct
installation of the equipment and proper maintenance according to these instruction.
This equipment must not be used for heating shower water, hand wash water or any other use that requires
direct contact of the hot water with body parts. This is valid for industrial and non-industrial use. If used
outside of its intended use and without consideration of the present instructions, Valsteam Adca will not
accept any consequential liability for the operation of the mixing valve.
All work must be carried out by a suitably competent person, and a supervisor must follow and check all activities.
Installation and operating personnel should be trained to properly use this equipment according to this Installation
and Maintenance Instructions – IMI. Where a formal "Permits to Work" system is implemented it must be complied
with.
Provisions should be taken to avoid unauthorized personnel to enter in contact with the equipment.
This equipment is designed to work within the working temperature and pressure limit conditions stated in the name-
plate and Information Sheet (IS). Check that the product is suitable for the application, to avoid failures.
Do not remove the nameplate attached to the equipment. Serial number and other useful information are stamped
on it.
If malfunction of any other equipment or system operation failure may result in a dangerous overpressure, over
temperature or even vacuum condition, a safety device must be included in the system to prevent such situations.
ADCA
VALSTEAM
INSTALLATION AND MAINTENANCE INSTRUCTIONS
MIXING VALVE
MX20
We reserve the right to change the design and material of this product without notice.
IMI 9.801 E 01.19

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Summary of Contents for VALSTEAM ADCA MX20

  • Page 1 This is valid for industrial and non-industrial use. If used outside of its intended use and without consideration of the present instructions, Valsteam Adca will not accept any consequential liability for the operation of the mixing valve.
  • Page 2: General Information

    • The equipment is not intended to withstand external stresses that may be inducted by the system to which it is being connected to. The installer should assess the risks of the stresses and possible hazardous environment around the equipment (e.g. temperature, explosion risk areas) and take adequate precautions to minimize them. •...
  • Page 3 Alternative live steam valve MATERIALS POS. DESIGNATION MATERIAL Nº Steam body CF8M / 1.4408 Water body CF8M / 1.4408 * Gasket Bolts A2-70 * Steam valve Stainless steel / Graphite * Valve spring AISI 302 / 1.4300 Steam cover AISI 316 / 1.4401 * Gasket PTFE * Piston...
  • Page 4: Installation

    Account for over pressure conditions, according with the local laws or standards. The MX20 Mixer must not be used with other purpose than the one it was built for. For the problems that cannot be solve with the help of this instructions, please contact the supplier or the manufacturer.
  • Page 5 The installer must check to ensure that there are no foreign bodies inside the pipes, and that the piping where the equipment will be connected also does not contain any foreign bodies. • The MX20 must be installed in a vertical position with the hot water outlet connection at the bottom to ensure that the best results are obtained. •...
  • Page 6 5.1 Start-up procedure • Ensure that the MX20 mixer main steam and water isolation valve is closed. • Open slowly the water upstream stop valve, in order to avoid water hammer damaging till you have the desired flow rate.
  • Page 7: Storage And Shutdown

    Before executing any maintenance, work read the the “Safety notes” in section 1 The ADCAMIX MX20 steam - water mixers do not require any particular maintenance. A correct operation of the steam/water mixer will only occur if the piston and steam valve stem move freely. Scale will seize these parts, thus the valve should be maintained and cleaned regularly to prevent scale accumulation.
  • Page 8 7.2 Safety device testing The safety devices should be tested regularly to ensure its correct operation. Current regional safety regulation should be taken into account and followed. These tests can only be performed by qualified personnel. 7.2.1 Steam safe device Adopt a firm body position that can hold the steam jet force, and use protective clothing, especially heavy-duty gloves and safety glasses.
  • Page 9: Troubleshooting Chart

    TROUBLESHOOTING If the malfunctions cannot be solved with the help of the following chart, please consult the manufacturer. TROUBLE SHOOTING CHART FAULT POSSIBLE REASON SOLUTION Water doesn’t heat High water flow rate Slowly close the water inlet valve till the desired temperature is reached. Low flow rate of steam If available, increase the steam flow rate by opening the steam valve...
  • Page 10: Spare Parts

    SPARE PARTS ADCA MX20 CODE DESIGNATION VALVE SIZE POS. Nº QTY. A.95.7050.020 Valve, spring & gasket 3/4" 5, 6, 8 A.95.7050.120 Piston & gasket 3/4" A.95.7050.220 Check valve 3/4" 18, 19 A.95.7050.420 Packing & gasket 3/4" 8, 10B RECOMMENDED TIGHTENING TORQUES POS.
  • Page 11 During its disposal, pay special attention to the rubbers, resins and polymers used in its construction (PVC, PTFE, PP, PVDF, Viton, etc.). For further information, please contact Valsteam ADCA Engineering SA. ADCA VALSTEAM We reserve the right to change the design and material of this product without notice.
  • Page 12 Valsteam ADCA engineering. Health and safety data sheets regarding substances identified as hazardous or potentially hazardous must be provided with the information mention above.

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