Summary of Contents for Mita ADIABATIC PAD-V
- Page 1 INSTRUCTION MANUAL “ADIABATIC” LIQUID COOLERS AND GAS CONDENSERS PAD - V TRANSLATION OF THE ORIGINAL INSTRUCTIONS...
- Page 2 ENGLISH...
- Page 3 Rev. 03 01.02.2021 Residual Risks update 2021 MITA Cooling Technologies S.r.l. All rights reserved. No part of this publication may be reproduced or circulated by any means (including photocopies, microfilm or other) without prior authorisation from MITA Cooling Technologies S.r.l..
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Page 5: Table Of Contents
..................................47 8.1 General warnings ..............................47 8.2 Specific safety warnings ............................48 8.3 Summary of routine maintenance and checks ......................48 8.4 Extraordinary maintenance............................52 8.5 Troubleshooting ............................... 53 © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 3 / 59 S.r.l. 201812... - Page 6 PAD-V Contents INSTRUCTION MANUAL ADDITIONAL INSTRUCTIONS ..............................56 9.1 General warnings ..............................56 9.2 Decommissioning and scrapping ..........................57 MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 4 / 59 201812 S.r.l.
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Page 7: General Information
© ALL RIGHTS RESERVED: All copyright to this manual is reserved by MITA Cooling Technologies S.r.l. The manual cannot be transferred to third parties for viewing without the written authorisation of MITA Cooling Technologies S.r.l. 1.1.2. Updates Machine illustrations are provided for explanatory purposes only and are not binding for the Manufacturer. - Page 8 In order to ensure that the paper version of the Instruction Manual matches the electronic one, we advise you to print off copies in colour. CAUTION MITA Cooling Technologies S.r.l. shall not be held liable for any misinterpretation of the information contained herein if printing has not been executed correctly. MITA-PAD-V-MAN-IT- ©...
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Page 9: How To Use This Manual
Heading. (1.“Chap. No.” 1.“Heading Number“) 1.1.1. Title Sub-heading. (1.“Chap No.” 1.“Heading no.” 1.“Sub- heading number“) list Numbered list, for identifying operations in succession. • list Bullet points, for general lists. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 7 / 59 S.r.l. 201812... -
Page 10: Manufacturer's Data
Indicates the obligation to dispose of waste materials in an ecological manner. ELECTROCUTION HAZARD Indicates situations of potential danger that can seriously endanger people's health and safety. 1.3. Manufacturer's data MITA Cooling Technologies S.r.l. Via del Benessere, 13 27010 Siziano (PV) - Italy Tel. -
Page 11: Machine Data
1.4. Machine data 1.4.1. Machine data plate The adiabatic coolers built by MITA Cooling Technologies S.r.l. come with an identification data plate affixed to the exterior wall near the control panel [Fig.1]. Figure 1 – Location of the EU data plate This plate indicates all the machine's technical data together with its year of construction and serial number [Fig. -
Page 12: After-Sales Technical Assistance
Any damage resulting from wear and tear of machine parts caused by normal use of the machine is excluded from the warranty. MITA Cooling Technologies S.r.l. declines all liability and shall not accept any claims for injuries to people or damage to property caused by one or more of the following: ... - Page 13 PAD-V General information INSTRUCTION MANUAL PAGE LEFT INTENTIONALLY BLANK © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 11 / 59 S.r.l. 201812...
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Page 14: Safety
• perform calibration operations; • foresee the hazards linked to these operations. Mita Cooling Technologies S.r.l. SKILLED TECHNICIAN Expert technician appointed by the manufacturer who is able and qualified to perform the same tasks as the: • Operator;... -
Page 15: Design Criteria
The machine uses normal oils and greases to lubricate the work tools and drive components. Unless otherwise indicated, all the power supplies, utilities and set-ups indicated in the paragraph on machine installation are the user's responsibility. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 13 / 59 S.r.l. -
Page 16: Protection Devices And Solutions
Only assign the execution of these operations to specialised personnel who have been trained in machinery handling procedures and are able to select and safely use the right means of transport and handling equipment for the specific circumstances (for example, crane, hoist, MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 14 / 59 201812 S.r.l. - Page 17 • allows you to correctly make the connections needed for the machine to function. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 15 / 59 S.r.l.
- Page 18 Do not attempt to make the machine perform any operations not contemplated in the instructions provided in this manual. • Do not place equipment/pipes/ducts on the machine or any of its components. MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 16 / 59 201812 S.r.l.
- Page 19 Before restarting the machine, make sure the system has been thoroughly cleaned. • Obtain the necessary work permits and check that all the procedures for preparing the machine for maintenance operations have been carried out correctly. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 17 / 59 S.r.l.
- Page 20 Do not tamper with the machine components. IMPORTANT: Cooler maintenance staff should follow the recommendations provided in EUROVENT 9- 7 guidelines (Ed. 2011) to keep cooling systems safe and efficient. MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 18 / 59 201812 S.r.l.
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Page 21: Safety Signs
Indicates the obligation to wear safety footwear as PPE when performing maintenance on the machine. Indicates the obligation to wear gloves as PPE when performing maintenance on the machine. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 19 / 59 S.r.l. 201812... -
Page 22: General Warnings And Rules Of Conduct
Consult this manual for information on the safety requirements in force and the specific PPE to be adopted for personal safety; in particular, however, personnel who work on or with the machine must wear suitable clothing, avoiding or paying due attention to: • loose clothing; MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 20 / 59 201812 S.r.l. -
Page 23: Intended Use
The machine has not been designed and built to be installed in environments with a potentially explosive atmosphere and/or to treat fluids or gases that are flammable, combustible or electrostatic or which can in some way generate a potentially explosive atmosphere. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 21 / 59 S.r.l. -
Page 24: Design Standards And Criteria
Type-tested (AS) and partially type-tested assemblies Safety of machinery — Electrical equipment of machines - CEI EN 60204-1: 2016 Part 1: General prescriptions Table 2 – Harmonised standards applied in the design of the machine MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 22 / 59 201812 S.r.l. -
Page 25: Description Of The Machine
CE data plate on board the individual machine. This CE data plate also indicates the PAD-V model; the meaning of the relative code is shown in the following figure. Figure 3 – PAD-V model code © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 23 / 59 S.r.l. -
Page 26: Figure 4 Main Pad-V Components
Wetting water collection tank Cooled air temperature sensor Heat exchange batteries Cooled fluid inlet connections Fluid to be cooled outlet connections Collection sump Recirculation kit Figure 4 – Main PAD-V components MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 24 / 59 201812 S.r.l. - Page 27 Pos. 9. Fluid do be cooled inlet connections Of adequate diameter for the circulating flow rate. Pos. 10. Cooled fluid outlets Of an adequate diameter for the flow rate in circulation, these house the cooled fluid temperature probe. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 25 / 59 S.r.l.
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Page 28: Ambient Conditions
Delivery pipe and wetting circuit: PVC pipe with a diameter suitable for the circulating flow rate. It allows the delivery water to reach the distribution tanks located above the adiabatic pack. 3.1.1 Optional For further information, contact MITA Cooling Technologies S.r.l.. 3.2 Ambient conditions 3.2.1 Noise level... - Page 29 PAD-V Machine description INSTRUCTION MANUAL PAGE LEFT INTENTIONALLY BLANK © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 27 / 59 S.r.l. 201812...
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Page 30: Transport, Handling And Positioning
The following paragraphs provide details on the specific requirements for safely interacting with the machine. Operating personnel: MAINTENANCE MECHANIC MAINTENANCE ELECTRICIAN SKILLED TECHNICIAN - MITA Cooling Technologies S.r.l. CAUTION Handling, loading and unloading of the machine must be carried out by qualified personnel who are familiar with the contents of this manual. -
Page 31: Transport
During unloading, the machine parts must be placed on a flat and unbroken surface. Preferably, keep them separated from the ground using wooden boards or logs. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 29 / 59 S.r.l. - Page 32 For any detail on the periodical checks, consult chapter 8 “Maintenance”. MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 30 / 59 201812 S.r.l.
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Page 33: Moving The Machine
Figure 7 – Lifting the PAD-V It is recommended to follow the instructions regarding the position of the lifting slings and the lift angle (no less than 60° with respect to the horizontal). © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 31 / 59 S.r.l. -
Page 34: Figure 8 Lifting The Pad-V, Sling Angle
All handling and lifting operations must be performed by qualified personnel. The lifting mean used must have a capacity at least equal to the unladen weight indicated on the identification plate. Never stand under suspended loads during lifting operations. MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 32 / 59 201812 S.r.l. -
Page 35: Installation
(at least equal to the width of an air intake vent). To evaluate the possibility of a different installation, contact the MITA Technical Office. • Avoid roofs, screens, ducts or other structures that prevent the free and correct circulation of air in the machine;... -
Page 36: Figure 9 Pad-V Positioning
Always install the machine on a plane and perfectly horizontal surface, so that the fans do not rotate unbalanced, otherwise causing damage to the motor bearings. For more precise information on this matter, contact the MITA Cooling Technologies S.r.l. Technical Office. -
Page 37: Component Assembly
Provide an expansion vessel equipped with a vent valve, in order to compensate for any pressure changes. • Air vent valve included in the MITA supply: install in the highest point of the circuit, which generally corresponds with the battery inlet threaded stub pipes. •... -
Page 38: Figure 10 Pad-V Inlet And Outlet Connections
All the connections above are threaded gas; on request, different types of connections can be supplied. Figure 10 –PAD-V inlet and outlet connections MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 36 / 59 201812 S.r.l. -
Page 39: Use Of The Equipment As A Gas Condenser
Avoid closing the intercept valves placed outside the batteries of the condensers, if inside them there is liquid gas: any sudden rise of the outside temperature is likely to cause the "flash" effect (violent and instantaneous gas expansion), with possible breakage of the battery tubes. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 37 / 59 S.r.l. - Page 40 Installation PAD-V INSTRUCTION MANUAL PAGE LEFT INTENTIONALLY BLANK MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 38 / 59 201812 S.r.l.
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Page 41: Putting Into Service And Preliminary Adjustments
WARNING Cooler maintenance staff should follow the recommendations provided in EUROVENT 9-7 guidelines (Ed. 2011) to keep cooling systems safe and efficient. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 39 / 59 S.r.l. -
Page 42: Preliminary Checks
In the event of discrepancies or anomalies, check that the voltage and frequency values match those for which the cooler was designed; if they match, check for other possible cause of the anomaly. MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 40 / 59 201812 S.r.l. -
Page 43: Using The Machine
IMPORTANT Cooler maintenance staff should follow the recommendations provided in EUROVENT 9-7 guidelines (Ed. 2011) to keep cooling systems safe and efficient. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 41 / 59 S.r.l. 201812... -
Page 44: Limits Of Use
The fluid to be cooled is generally water, or a solution of water and glycol in case of installation in cold climate places. If the liquid in the primary circuit is of a different nature, contact the MITA Cooling Technologies S.r.l. Technical Office as the battery must be built with suitable materials. - Page 45 Check the condition of the humidifier pack even more frequently and, if it is dirty or clogged, clean or replace it. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 43 / 59 S.r.l.
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Page 46: Adjustment And Reduction Of The Heat Capacity
Once the water reaches the required level, the maximum level sensor tells the make-up solenoid valve to close. The system can then return to normal operation. MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 44 / 59 201812 S.r.l. -
Page 47: Recommended Parameters For Adiabatic Humidification Water
IMPORTANT Cooler maintenance staff should follow the recommendations provided in EUROVENT 9-7 guidelines (Ed. 2011) to keep cooling systems safe and efficient. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 45 / 59 S.r.l. 201812... - Page 48 PAGE LEFT INTENTIONALLY BLANK MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 46 / 59 201812 S.r.l.
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Page 49: Maintenance
Before proceeding, personnel must be kitted out with fall protection equipment and must access the areas in question using a cherry picker or platform ladder with side rails in compliance with the regulations in force in the country of use. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 47 / 59 S.r.l. -
Page 50: Specific Safety Warnings
Air inlet panels (cleaning and panel integrity) • 8.3.5 Motor fan assemblies(abnormal vibrations or noises) • 8.3.6 Heat exchange batteries (cleaning, fins integrity) Table 4 - Summary of routine maintenance and checks – Dry Mode MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 48 / 59 201812 S.r.l. - Page 51 Water make-up and drain valves • • Water recirculation pump 8.3.8 • 8.3.2 Functional check of the entire wetting circuit Table 5 - Summary of routine maintenance and checks – Adiabatic Mode © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 49 / 59 S.r.l. 201812...
- Page 52 8.3.4 Maintenance of the humidifier pack It is possible to clean the humidifier pack using specially prepared water-based solutions. Contact MITA Cooling Technologies S.r.l. Technical Office for further information It is advisable to perform a visual inspection just before summer; replace it if there are any signs of excessive soiling or scaling.
- Page 53 • there are no water leaks in the rubber joining sleeves, in particular those on the equalisation pipe and on the pump suction pipe. © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 51 / 59 S.r.l.
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Page 54: Extraordinary Maintenance
For any extraordinary maintenance work not described in this manual, turn to technicians specifically appointed by MITA Cooling Technologies S.r.l. CAUTION MITA Cooling Technologies S.r.l. shall not be held responsible for maintenance carried out by personnel it has not directly appointed. MITA-PAD-V-MAN-IT- ©... -
Page 55: Troubleshooting
ON position) MITA Cooling Technologies Water leaking from S.r.l. Technical Office the tank and/or Overflow drain - panel alarm signal Check for any obstructions Remove obstruction © MITA Cooling Technologies MITA-PAD-V-MAN-IT- 53 / 59 S.r.l. 201812... -
Page 56: Table 6 Troubleshooting
Vibration and/or noise the fan to the body of the tightness of all screws machine Fan blades broken Contact MITA Cooling or off-balance Technologies S.r.l. Technical Office Table 6 – Troubleshooting MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 54 / 59 201812 S.r.l. - Page 57 PAD-V Maintenance INSTRUCTION MANUAL PAGE LEFT INTENTIONALLY BLANK © MITA Cooling Technologies 55 / 59 S.r.l.
- Page 58 WARNING Cooler maintenance staff should follow the recommendations provided in EUROVENT 9-7 guidelines (Ed. 2011) to keep cooling systems safe and efficient. MITA-PAD-V-MAN-IT- © MITA Cooling Technologies 56 / 59 201812 S.r.l.
- Page 59 Separate the dismantled machine parts by type for correct disposal aimed at recycling the various materials and products, in full observance of the regulations in force in the country of disposal. © MITA Cooling Technologies 57 / 59 S.r.l.
- Page 60 Figure 5 Transporting the PAD-V Figure 6 Rigging plate Figure 7 Lifting the PAD-V Figure 8 Lifting the PAD-V, sling angle Figure 9 PAD-V positioning Figure 10 PAD-V inlet and outlet connections © MITA Cooling Technologies 58 / 59 S.r.l.
- Page 61 PAD-V Additional instructions INSTRUCTION MANUAL PAGE LEFT INTENTIONALLY BLANK © MITA Cooling Technologies 59 / 59 S.r.l.
- Page 62 MITA Cooling Technologies S.r.l. Via del Benessere, 13 27010 Siziano (PV) - Italy Tel. +39 0382 67599 Fax. + 39 0382 617590 www.mitacoolingtechnologies.com info@mitact.it...