HIdRos WSA Series Technical Manual
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HIdRos WSA Series Technical Manual

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Incorporated in this document are the following:
• Declaration of conformity
• Technical manual
• Dimensional drawing
• Wiring diagrams
Multiple instructions:
Consult the specific part
MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. 07-2013
WATER CHILLERS
WSA
SERIES
TECHNICAL MANUAL
Read and understand
the instructions before
undertaking any work on
the unit
Original Instructions

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Summary of Contents for HIdRos WSA Series

  • Page 1 • Declaration of conformity • Technical manual • Dimensional drawing • Wiring diagrams Read and understand Multiple instructions: the instructions before Consult the specific part undertaking any work on the unit MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. 07-2013 Original Instructions...
  • Page 2 Water chiller Reproduction, data storage and transmission, even partial, of this publication, in any form, without the prior written authorisation of HIDROS S.p.A., is prohibited. HIDROS S.p.A. can be contacted for all inquiries regarding the use of its products. HIDROS S.p.A. follows a policy of continuous product development and improvement and reserves the right to modify specifications, equi- pment and instructions regarding use and maintenance at any time, without notice.

  • Page 3: Table Of Contents

    4.24 Refrigerant circuit layout .............................. 38 5. UNIT START UP ....................................40 5.1 Preliminary Checks ................................ 40 5.2 Description of the control panel ............................. 42 5.3 Remote control panel ..............................43 MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 4 8.2 Disposal, recovery and recycling ..........................50 8.3 RAEE directive (only for EC countries) .......................... 50 9. DIAGNOSIS & TROUBLESHOOTING ..............................50 9.1 Fault finding .................................. 50 10. DIMENSIONAL DRAWINGS ................................52 MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 5: Introduction

    In these instructions symbols have been used (described in the following paragraphs) to draw the attention of operators and users to the operations that have a higher risk and which must be performed safely. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 6: Potential Risks

    High pressure safety severe burns, safety valve with the refrige- the condensing pressure; use all valve. hearing loss. rant circuit open. the personal protective equipment required by law. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 7: General Description Of Symbols Used

    A white symbol inserted in a blue circle indicates an action that must be done to avoid a risk. Safety symbols combined in accordance with ISO 3864-2: The graphic symbol “warning” is qualified with additional safety information (text or other symbols). MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 8: Safety Symbols Used

    EARTH CONNECTION The symbol identifies Earthing connection points in the unit. READ AND UNDERSTAND THE INSTRUCTIONS Read and understand the instructions of the machine before any operations. RECOVER OR RECYCLE MATERIAL MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 9: Limitations And Prohibited Use

    Manufacturing date Max allowable press. (high/low) Erstellungsdatum Max kältermit betriebsdrück (hoch/nieder) Press. maxi admissible (haut/bas) Date de fabrication 41.5/22.1 18/01/2012 The product label should never be removed from the unit. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 10: Safety

    Users and maintenance personnel must be adequately informed about the possible risks of handling potentially toxic substances. Failure to follow such instructions can cause damage to personnel or to the unit. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 11: Prevention Of Inhalation Of High Vapor Concentrations

    In case of contact with skin, wash immediately with lukewarm water. Thaw tissue using water. Remove contaminated clothing. Clothing may stick to the skin in case of frostbite. If irritation, swelling or blisters appear, seek medical assistance. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 12: Technical Characteristics

    The following components are supplied as standard on all units: main switch, thermal overloads (protection of pumps and fans), compressor fuses, control circuit automatic breakers, compressor contactors, fan contactors and pump contactors. The terminal board has MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 13: Other Versions

    LED’s. If required (available as an option), the microprocessor can be configured in order for it to connect to a site BMS system thus enabling remote control and management. The Hidros technical department can discuss and evaluate, in conjunction with the customer, solutions using MODBUS protocols.

  • Page 14: Accessories Description

    The valve is controlled by the microprocessor control unit by modulating signal 0-10V. In the event of lack of power supply, the valve is normally closed. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 15: Technical Data

    (5) Sound power level in accordance with ISO 9614 (LS version). (6) Sound pressure level at 10 mt from the unit in free field conditions direction factor Q=2, calculated in accordance with ISO 9614 (LS version). MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 16 The partial heat recovery can only produce hot water simoultaneously to the operation in cooling mode of the unit. Using the partial heat recovery in the reversible versions, in heating mode, the heating capacity of the unit is signi- ficantly reduced. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 17 Water chiller 3.4.2 Source and user heat exchanger water pressure drops Water flow (m3/h) 14-16 Water flow (m3/h) 31-36 Water flow (m3/h) MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 18 Water chiller 3.4.3 Partial heat recovery water pressure drops Water flow (m3/h) 31-36 Water flow (m3/h) MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 19: Operation Limits

    Any use not specified in this manual is prohibited. In case of operations outside of these values, please contact the company. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 20: Correction Tables

    IPCF = Input power correction factor 3.6.3 Correction tables different Fouling factors Fouling facto 0.00005 0.0001 0.0002 CCCP 0.98 0.94 IPCF 0.98 0.95 CCCP = Cooling capacity correction factor IPCF = Input power correction factor MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 21: Sound Data

    The installation and maintenance of the unit must comply with the local regulations in force at the time of the installa- tion. Avoid contact and do not insert any objects into moving parts. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 22: Workers' Health And Safety

    • Inform the Company of the extent of the damage within 8 days of receipt of the goods. After this time any claim will not be considered. • A full written report is required for cases of severe damage. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 23: Storage

    Units can be lifted by using a forklift or, alternatively, using belts. Take care that the method of lifting does not damage the side panels or the cover. It is important to keep the unit horizontal at all time to avoid damage to the internal components. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 24: Plocation And Minimum Technical Clearances

    (spring or rubber), In this regard it is necessary to guarantee the “minimum service below. Mod. 1000 1000 1000 1000 1000 MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 25: Installation Of Rubber Vibration Dampers (Kavg)

    The unit is configured at the factory with serial address 1. In case of using the MODBUS system, you can request the list of variables by contacting the assistance. TELEPHONE LINE SERIAL INTERFACE CARD CONNECTION CABLE WITH ADAPTER UNITS MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 26: Source Water Pump Installation

    Shut-off manual valves to isolate the unit from the hydraulic circuit. • Metallic filters to be mounted on the inlet pipe with a mesh not larger than 1 mm. • Vent valves, expansion tank with water filling, discharge valve. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 27: Chemical Characteristics Of The Water

    Model Minimum water content (l) Safety valve (bar) Model Minimum water content (l) Safety valve (bar) MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 28: Installation With Source Open Circuit (Reversible Version)

    In case of installation in sites with ground water temperatures close to the above it is recommended to test for water consumption for a minimum period of 36 consecutive hours (to be made, possibly, towards the end of winter season). MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 29: Hydraulic Components

    Water chiller 4.16 Hydraulic components User heat exchanger Source heat exchanger Flow Switch MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 30 Manual valve Source modulating valve Water tank Expansion Vessel Well pump Safety Valve Check valve The pump must be installed with the water supply side facing the unit water inlet connection. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 31 Well pump Expansion Vessel Check valve Safety Valve Medium heat exchanger Source water Filter The pump must be installed with the water supply side facing the unit water inlet connection. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 32: Filling The Hydraulic Circuit

    Open the drainage valve outside the unit and all the installation and terminal air vent valves. If the fluid in the circuit contains anti-freeze, it MUST not be allowed to run away to drain. It must be collected for possible re-cycling or for correct disposal. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 33: Wsa/Ev Refrigerant Connections

    • The refrigerant line diameters can be obtained by the refrigerant circuit, depending on the selected size and the distance between the indoor and the outdoor unit. ~ 6m ~ 6m Refrigerant line diameters for “EV” versions Distance [m] Liquid Liquid Liquid Mod. [mm] [mm] [mm] [mm] [mm] [mm] MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 34 Refrigerant charge g/m Cooling capacity correction factors Mod. Refr. Line 0 mt. Refr. Line 10 mt. Refr. Line 20 mt. Refr. Line 30 mt. WSA / EV 0,98 0,96 0,95 MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 35: Wiring Connections: Preliminary Safety Information

    If opened, the main switch cuts the power off to any electric heater and antifreeze device supplied with the unit, in- cluding the compressor crankcase heaters. The main switch should only be disconnected for cleaning, maintenance or unit reparation. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 36: Electric Data

    230/1/50 230/1/50 230/1/50 Line section PE section Electric data may change for updating without notice. It is therefore necessary to refer always to the wiring diagram present in the units. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 37: Electric Connections

    USER CIRCUIT FLOW SWITCH (SFW1) This is used to protect the unit if there is a low water flow rate in the user circuit. It is factory fitted across terminals 14 and 43. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 38: Refrigerant Circuit Layout

    Only mod. 06 - 08 - 010 Single Phase 4.23.2 Refrigerant circuit layout WSA GLP SLP ø ø ø ø ø VMAS ø ø 4.23.3 Refrigerant circuit layout WSA/EV GLP SLP ø ø ø ø ø MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 39 GLP SLP ø ø ø ø ø VMAS ø ø 4.23.3 Refrigerant circuit layout WSA/HP 26 ÷ 40 ø ø ø ø ø ø VMAS ø ø ø ø ø MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 40: Unit Start Up

    If there is an accidental start-up before the 12 hours pre-heating period has elapsed, the compressors could be seriously damaged and therefore the warranty will immediately terminate . MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 41 On cooling mode check that the refrigerant superheat on the user heat exchanger is about 5-7 °C • On cooling mode check that the refrigerant sub-cooling on the source heat exchanger is about 5-7 °C. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 42: Description Of The Control Panel

    If press ed down for 5 seconds, it makes it possible to switch the unit on or off in heating mode. Each time this function is activated, the green led positioned just above the button will be switched ON. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 43: Remote Control Panel

    If press ed down for 5 seconds, it makes it possible to switch the unit on or off in heating mode. Each time this function is activated, the green led positioned just above the button will be switched ON. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 44 If there is damage to the remote control or there is a faulty connection, failure of communication will be indicated in the display with the message “noL” (no link). MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 45: Use

    If requested, the compressor safety delay countdown starts and the compressor icon flashes. The water pump will be activated after few seconds and then, once the compressor countdown has finished, the compressor starts and the icon remains on. The display shows the user water inlet temperature. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 46: Stop

    15°C and the ∆t is 5°C, then the set point will be 20°C. If the ∆t is 8°C, then the set point has to be set at 23°C. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 47: Parameters List

    RST label appears on the upper part of the display. In this case press the key to reset. Non reset alarm: nO label appears on the upper part of the display. In this case the alarm is permanent; contact Hidros technical support. 6.8 Display alarm history Press the...

  • Page 48: Maintenance Of The Unit

    Aluminium coil fins are very sharp and can cause serious wounds. Care must be taken when working in their surroundings. After servicing, replace the cover panels, fixing them with locking screws. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 49: Refrigerant Circuit Repair

    • When replacing the compressor following a burn out, it is advisable to wash the cooling system with appropriate products including a filter for acid. • When under vacuum do not switch on the compressor. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 50: Decommissioning

    All units are checked and tested at the factory before shipment, however, during operation an anomaly or failure can occur. BE SURE TO RESET AN ALARM ONLY AFTER YOU HAVE REMOVED THE CAUSE OF THE FAULT; REPEA- TED RESET MAY RESULT IN IRREVOCABLE DAMAGE TO THE UNIT. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 51 Switch the unit OFF and, after few Severe hardware damage in the seconds switch the unit ON; if the EEPROM Alarm microprocessor control system. alarm appears again contact the service. MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...

  • Page 52: Dimensional Drawings

    Water chiller 10.DIMENSIONAL DRAWINGS Dimensional drawings WSA 06 - 08 - 010 MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 53 Water chiller Dimensional drawings WSA 014 -016 - 021 MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 54 Water chiller Dimensional drawings WSA 026 - 031 - 046 - 041 MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 55 Water chiller Dimensional drawings WSA/EV 026 - 031 - 046 - 041 MTEC.3800.GB-B-1 Operation and maintenance WSA series English Rev. B 07-2013...
  • Page 56 REG. IMP. PD 0359834 028 3 ▪ VAT NUMBER: IT 03598340283 ▪ CAPITALE SOCIALE € 1.200.000,00 i.v. Technical data shown in this booklet are not binding. HIDROS S.p.A. shall have the right to introduce at any time whatever modifications necessary to the improvement of the product.

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