DWME - Air Conditioning DAIKIN - Free user manual and instructions

USER MANUAL DWME DAIKIN

English language: Original Instructions All other languages: Translation of the Original Instructions Frictionless Centrifugal Chiller DWME Refrigerant: R-134a

AND INFORMATION. THESE UNITS

MUST BE INSTALLED IN INDUSTRIAL

ENVIROMENTS. Description The unit you bought is a “water cooled chiller”, a machine designed to cool water (or water- glycol mixture) within the limits herebelow reported . The unit opera steam compression, condensation and evaporation to reverse Carnot cycle.The main components are: - Centrifugal compresso r to rise the ref pressure from evaporation pressure to condensation pressure

Evaporator, where the low pressure evaporates cooling the water. - Condenser, where high pressure steam rejecting heat removed from the chilled water in thanks to a water cooled heat exchanger. - Expansion valve to reduce the pressur liquid from condensation pressur e to evaporation pressure. General Information All units are delivered with wiring diagrams drawings, nameplate; and DOC (Declaration Of Conformity); these documents show all technical data for the

document for qualified personnel but it is not intended to replace such personnel.

Thank you for purchasing this chiller

cooled chiller”, a machine glycol mixture) within the . The unit opera tion is based on compression, condensation and evaporation according to reverse Carnot cycle.The main components are:

r to rise the ref rigerant steam pressure from evaporation pressure to condensation Evaporator, where the low pressure refrigerant liquid steam condensates rejecting heat removed from the chilled water in the water cooled heat exchanger.

the pressur e of condensed e to evaporation wiring diagrams , certified DOC (Declaration Of these documents show all technical data for the unit you have bought and they

ESSENTIAL DOCUMENTS OF THIS MANUAL

In case of any discrepancy between this manual and the equipment’s documents please refer to on board documents. In case of any doubt contact t he manufacturer representative. For other data information of this family of unit, see the Product Manual. The purpose of this manual is to allow the installer and the qualified operator to ensure proper installation, commissioning and maintenance of the unit, without any risk to people, animals and/or objects. Receiving the unit The unit must be inspected for any possible damage immediately upon reaching final place of installation. All com ponents described in the delivery note must be inspected and checked. Should the unit be damaged, do not remove the damaged material and immediately report the damage to the transportation company and request they inspect the unit Immediately report th e damage to the manufacturer representative, a set of photographs is responsibility. Damage must not be repaired before the inspection of the transportation company representative. Before installing the unit, check that the model and supply voltage shown on the nameplate are correct. Responsibility for any damage after acceptance of the unit cannot be attributed to the manufacturer. Operating limits Storing If the chi llers have to be stored prior the following warnings have to be observed. Store the chillers inside, at am bient temperatures lower than 45°C. Do not remove the protective plastic. Do not leave the unit exposed to the elements. Do not expose the chillers to direct sun Keep the chillers far from heat sources. Storing below the minimum temperature may cause damage to components. Storing above the maximum temperature causes opening of safety valves. Storing in condensing atmosphere may damage electronic components.

EIMWC01104 -12EU - 8/148 document for qualified personnel but it is not intended to replace such personnel.

unit you have bought and they

In case of any discrepancy between this manual and the please refer to on board documents. he manufacturer representative.

of this family of unit, see the Product The purpose of this manual is to allow the installer and the ensure proper installation, commissioning and maintenance of the unit, without any risk to people, The unit must be inspected for any possible damage immediately upon reaching final place of installation. All ponents described in the delivery note must be inspected Should the unit be damaged, do not remove the damaged material and immediately report the damage to the and request they inspect the unit

e damage to the manufacturer set of photographs is helpful in recognizing Damage must not be repaired before the inspection of the transportation company representative.

Before installing the unit, check that the model and power supply voltage shown on the nameplate are correct. Responsibility for any damage after acceptance of the unit cannot be attributed to the manufacturer.

llers have to be stored prior the installation, the following warnings have to be observed.

bient temperatures lower than protective plastic.

exposed to the elements.

Do not expose the chillers to direct sun light. Keep the chillers far from heat sources.

Storing below the minimum temperature may cause damage to components. Storing above the maximum temperature causes opening of safety valves. Storing in condensing atmosphere may damage electronic components.D - EIMWC01104-12EU - 9/148

Operating Limits The units are designed for indoor, non-freezing locations. Outdoor locations will require special design considerations. Table 1 - Operating Parameters Leaving chilled water (ice duty not available) 38°F to 60°F (3.3°C to 15°C) Max. operating evaporator inlet fluid temperature

Where: ECWT = Entering condenser water temperature ELWT = Leaving chilled water temperature

= Chilled Water Delta-T at full load PLD = The percent chiller load point to be checked For example, at 7°C ELWT, 5°C ∆t @ full load, the entering condenser water temperature could be as low as 10°C. Figure 1 - Description of the labels applied to the electrical panel

Label Identification

– Manufacturer’s logo

– Cable tightening warning

– Lifting instructions

– Hazardous Voltage warningSafety The machine must be firmly secured to the ground.

is essential to observe the following instructions:

The machine must be raised only by the lifting points. Only these points can support the whole weight of the unit.

Do not allow unauthorised and/or unqualified personnel to access the machine. - It is forbidden to access the electrical components without having opened the machine's general disconnecting switch and switched off the power supply.

It is forbidden to access the electrical components without using an insulating platform. Do not access components if water and/or moisture are present.

All operations on the refrigerant circuit and on components under pressure must be carried out by qualified personnel only.

Replacement of a compressor must be carried out by qualified personnel only.

Sharp edges can cause wounds. Avoid direct contact.

Avoid introducing solid bodies into the water pipes while the machine is connected to the system.

A mechanical filter must be installed on the water pipe connected to the heat exchanger inlet. - The unit is supplied with a single pole high pressure switch that opens when the pressure exceeds the limit. the switch opens the control relay is switched off by turning off the compressor.The pressure switch is mounted on the compre ssor discharge port. In case of cut out , reset the switch by pressing the blue button and then reset the alarm on the microprocessor. - The unit is supplied with safety valves also on both the high and the low pressure sides of the refr circuit. - Install in the line connecting the discharge of leak refrigerant sensor.

Electric shock hazard. Can cause personal injury or equipment damage. This equipment must be properly grounded. Connections to and service of th e MicroTech control panel must be performed only by personnel that are knowledgeable in the operation of the equipment being controlled.

Static sensitive components. A static discharge while handling electronic circuit boards can damage components. Discharge any static electrical charge by touching the bare metal inside the control panel before performing any service work. Never unplug any cables, circuit board terminal blocks, or power plugs while power is applied to the panel.

Do not install any software not authorized by McQuay or alter operating systems in any unit microprocessor, including the interface panel. Doing so can cause malfunction of the control system and possible equipment damage.

It is absolutely forbidden to remove all protectio moving parts. In case of sudden stop of the unit, follow the instructions on the Control Panel Operating Manual which is part of the on board documentation delivered to the end user. It is strongly recommended to perform installation and maintenance with other people. In case of accidental injury or unease, it is necessary to: - keep calm

press the alarm button if present in the installation site - move the injured person in a warm place far from the unit and in rest position - contact immediately emergen cy rescue personnel of the building or the Health Emergency Service

wait without leaving the injured person alone until the rescue operators come. D - EIMWC01104 The machine must be firmly secured to the ground.

is essential to observe the following instructions:

The machine must be raised only by the lifting points. Only these points can support the whole weight of the unit.

Do not allow unauthorised and/or unqualified personnel to is forbidden to access the electrical components without having opened the machine's general disconnecting switch It is forbidden to access the electrical components without using an insulating platform. Do not access the electrical components if water and/or moisture are present.

All operations on the refrigerant circuit and on components under pressure must be carried out by qualified personnel Replacement of a compressor must be carried out by Sharp edges can cause wounds. Avoid direct contact.

Avoid introducing solid bodies into the water pipes while the A mechanical filter must be installed on the water pipe with a single pole high pressure safety that opens when the pressure exceeds the limit. When the switch opens the control relay is switched off by turning off the compressor.The pressure switch is mounted on the ssor discharge port.

, reset the switch by pressing the blue button and then reset the alarm on the microprocessor.

also , that are installed on both the high and the low pressure sides of the refr igerant line connecting the discharge of safety valves Electric shock hazard. Can cause personal injury or

equipment damage. This equipment must be properly

e MicroTech control panel must be performed only by personnel that are knowledgeable in the operation of the equipment being Static sensitive components. A static discharge while handling electronic circuit boards can damage components. Discharge any static electrical charge by touching the bare metal inside the control panel before performing any service work. Never unplug any cables, circuit board terminal blocks, or power plugs while power is applied to the panel.

software not authorized by McQuay or alter operating systems in any unit microprocessor, including the interface panel. Doing so can cause malfunction of the control system and possible equipment damage.

It is absolutely forbidden to remove all protectio ns of In case of sudden stop of the unit, follow the instructions on the

which is part of the on

board documentation delivered to the end user.

It is strongly recommended to perform installation and with other people. In case of accidental injury or press the alarm button if present in the installation site

in a warm place far from the unit cy rescue personnel of the building or the Health Emergency Service

wait without leaving the injured person alone until the

Moving and lifting Avoid bumping and/or jolting during loading/unloading unit from the truck and moving it. Do not push or pull the unit from any part other than the basis . Secure the unit inside the truck to prevent it from moving and causing damages. Do not allow any part of the unit to fall during transportation or loading/unloading. Use extreme caution when handling the unit damage to the control

The unit must be lifted by inserting where there are holes for lif ting ( be used along the line connecting the damage to the electric panel During the lifting phase to verify lifting chains do not touch the electrical panel If moving the machine , you had on the basis of the machine without touching copper, steel, compressors and /

Both the lifting ropes and the spacing ba strong enough to support the unit safely. Please check the unit’s weight on the unit nameplate. The unit must be lifted with the utmost attention and care following lifting label instructions; lift unit very slow perfectly level. Positioning and assembly The unit must be mounted on a level base of concrete or s and must be positioned so a s to provide space maintenance unit at one end, to allow removal of the tubes of the evaporator and condenser. The space required is equal to tubes of the condenser and evaporator are expanded inside the tube plate to allo w the replacement, if n space of the other sides including the vertical axis The unit mu st be installed on a robust and perfectly level foundation; it might be necessary to use weight distribution beams.

Figure 2 EIMWC01104 -12EU - 10/148 Avoid bumping and/or jolting during loading/unloading unit from the truck and moving it. Do not push or pull the unit from . Secure the unit inside the truck to prevent it from moving and causing damages. Do not allow of the unit to fall during transportation or handling the unit to prevent

the refrigerant piping. by inserting a hook in each corner, ting ( see fig. 2). Spacer bars must line connecting the lifting holes to prevent to the electric panel and motor terminal box. to verify that the ropes and / or the electrical panel and / or piping. , you had the sleds or skates, push only without touching the pipes of and / or the electrical panel. Both the lifting ropes and the spacing ba rs must be strong enough to support the unit safely. Please check the unit’s weight on the unit nameplate.

The unit must be lifted with the utmost attention and care following lifting label instructions; lift unit very slow ly, keeping it The unit must be mounted on a level base of concrete or s teel s to provide space maintenance unit at one end, to allow removal of the tubes of the evaporator and condenser. The space required is equal to 4,3 m. The tubes of the condenser and evaporator are expanded inside w the replacement, if n ecessary. The space of the other sides including the vertical axis is 1,5 m. st be installed on a robust and perfectly level foundation; it might be necessary to use weight distribution Figure 2 - Lifting unitIf the unit is installed in places that are easily accessible to people and animals, it is advisable to install protection grids around the unit. To ensure best performance on the installation site, the following precautions and instructions must be followed:

Make sure to provide a strong and solid foundation to reduce noise and vibrations.

The water in the system must be particularly clean and all traces of oil and rust must be removed. A mechanical water filter must be installed on the unit’s inlet piping.

Sound protection When sound levels require special control, great care must be exercised to isolate the unit from its base by appropriately applying anti- vibration elements (supplied as an option). Flexible joints must be installed on the water connections, as well. Water piping Piping must be designed with the lowest number of elbows and the lowest number of vertical changes of direction. In this way, installation costs are reduced considerably and system performance is improved. The water system must have:

vibration mountings in order to reduce transmission of vibrations to the structures.

Isolating valves to isolate the unit from the water system during maintenance.

Manual or automatic air venting device at the system’s highest point. drain device at the system’s lowest point.

A suitable device that can maintain the water system under pressure (expansion tank, etc.).

temperature and pressure indicators to assis operator during service and maintenance.

7. In case of unit replacement

, the entire water system

emptied and cleaned before the new unit is installed. Regular test and proper chemical treatment of water are recommended before starting up the ne w unit.

In the event that glycol is added to the water system as anti- freeze protection, pay attention to the fact that suction pressure will be lower, the unit’s performance will be lower and water pressure drops will be greater. All unit systems, such as anti-freeze and low- pressure protection will need to be readjusted.

Before insulating water piping, check that there are no leaks.

Check that the water pressure does not exceed the design

ressure of heat exchangers water side. It’s recommende to install a safety valve on the water piping.

Water treatment Before putting the unit into operation, clean the water circuit. Dirt, scales, corrosion debrits and other material can accumulate inside the heat exchanger and reduce its Pressure drop can increase as well, thus reducing water flow. Proper water treatment therefore reduces the risk of corrosion, erosion, scaling, etc. The most appropriate water treatment must be determined locally, according to the type of system and water characteristics. The manufacturer is not responsible for damage to or malfunctioning of equipment caused by failure to treat water or by improperly treated water. Evaporator anti-freeze protection

If the unit is not operating during the winter it is recommended to drain and wash the evaporator and the water pipes with glycole. Evap orator is supplied with draining and air flow connections.

It is recommended to add an appropriate amount of glycole inside the water circuit. Freezing temperature for water- glycole solution should be at least the expected minimum ambient temperature.

nsulate the pipes in particular those related to the chilled water to avoid the moisture phenomena

Damage caused by freezing is not covered by the warranty. D - EIMWC01104 is installed in places that are easily accessible to people and animals, it is advisable to install protection grids

To ensure best performance on the installation site, the instructions must be followed:

Make sure to provide a strong and solid foundation to The water in the system must be particularly clean and all traces of oil and rust must be removed. A mechanical on the unit’s inlet piping.

When sound levels require special control, great care must be exercised to isolate the unit from its base by appropriately vibration elements (supplied as an option). installed on the water connections, as Piping must be designed with the lowest number of elbows and the lowest number of vertical changes of direction. In this way, installation costs are reduced considerably and system vibration mountings in order to reduce transmission of Isolating valves to isolate the unit from the water system Manual or automatic air venting device at the system’s drain device at the system’s lowest point.

A suitable device that can maintain the water system under temperature and pressure indicators to assis t the operator during service and maintenance.

, the entire water system must emptied and cleaned before the new unit is installed.

Regular test and proper chemical treatment of water are

In the event that glycol is added to the water system as freeze protection, pay attention to the fact that suction pressure will be lower, the unit’s performance will be lower and water pressure drops will be greater. All unit -protection pressure protection Before insulating water piping, check that there are no Check that the water pressure does not exceed the design

ressure of heat exchangers water side. It’s recommende

to install a safety valve on the water piping.

Before putting the unit into operation, clean the water circuit. other material can accumulate inside the heat exchanger and reduce its transfer. Pressure drop can increase as well, thus reducing water flow. Proper water treatment therefore reduces the risk of corrosion, erosion, scaling, etc. The most appropriate water treatment must be determined locally, according to the type of system The manufacturer is not responsible for damage to or malfunctioning of equipment caused by failure to treat water or If the unit is not operating during the winter it is recommended to drain and wash the evaporator and the orator is supplied with It is recommended to add an appropriate amount of Freezing temperature for glycole solution should be at least 6°C lower than the expected minimum ambient temperature.

nsulate the pipes in particular those related to the chilled

Damage caused by freezing is not covered by the warranty.

Installing the flow switch To ensure sufficient water flow through the evaporator, it is essential that a flow switch be installed on the water circuit. The flow switch can be installed either on the inlet or outlet water piping. The purpose of the flow sw in the event of interrupted water flow, thus protecting the evaporator from freezing. The manufacturer offers, as optional, a flow switch that has been selected for this purpose. This paddle- type flow switch is suitable for heavy applications (IP67) and pipe diameters in the range of 1” to The flow switch is provided with a clean contact which must be electrically connected to terminals shown in the wiring diagram. Flow switch has to be tune

evaporator water flow is lower than 50% of nomi

Electrical Installation General specifications All electrical connections to the unit must be carried out in compliance with laws and regulations in force. All installation, management must be carried out by qualified personnel. Refer to the specific wiring diagram for the unit you have bought . Should the wiring diagram not be on the unit or should it have been lost, please contact your manufacturer representa tive, who will send you a copy. In case of discrepancy between wiring diagram and electrical panel/cables please contact the manufacturer representative. Only use copper conductors. Failure to use copper conductors could result in overheating or corrosion and could damage the unit. To avoid interference, all control wires must be connected separately from the power cables. Use different electrical passage ducts for this purpose.

Before servicing the unit in any way, open the general

sconnecting switch on the unit’s main power supply. When the unit is off but the disconnecting switch is in the closed position, unused circuits are live, as well. Never open the terminal board box of the compressors before having opened the unit’s general

Contemporaneity of single- phase and three unbalance between phases could cause leakages towards ground, during the normal operation of the units of the series. If the unit includes devices that cause superior harmon VFD and phase cut), the leakage towards ground could increases to ve ry higher values (about 2 Amp The protections for the power supply system have to be designed according to the above mentioned values. Operation Operator’s responsibilities

is essential that the operator is appropriately trained and becomes familiar with the system before operating the unit. In addition to reading this manual, the operator must study the microprocessor operating manual and the wiring diagram in order to understand start- up sequence, operation, shutdown sequence and operation of all the safety devices. During the unit’s initial start- up phase, a technician authorized by the manufacturer is available to answer any questions and to give instructions as to the cor rect operating procedures. The operator must keep a record of operating data for every installed unit. Another record should also be kept of all the periodical maintenance and servicing activities. If the operator notes abnormal or unusual operating condit he is advised to consult the technical service authorized by the manufacturer. Open the isolation valves and / or interception Before compressor start up, be sure that all isolating valves are fully open and back seated and the valve spindle tightl capped. EIMWC01104 -12EU - 11/148 To ensure sufficient water flow through the evaporator, it is essential that a flow switch be installed on the water circuit. The flow switch can be installed either on the inlet or outlet water piping. The purpose of the flow sw itch is to stop the unit in the event of interrupted water flow, thus protecting the The manufacturer offers, as optional, a flow switch that has type flow switch is suitable for heavy -duty outdoor applications (IP67) and pipe diameters in the range of 1” to 8”. The flow switch is provided with a clean contact which must be electrically connected to terminals shown in the wiring

to stop the unit when the evaporator water flow is lower than 50% of nomi nal flow rate. All electrical connections to the unit must be carried out in compliance with laws and regulations in force.

All installation, management and maintenance activities must be carried out by qualified personnel.

wiring diagram for the unit you have . Should the wiring diagram not be on the unit or should it have been lost, please contact your tive, who will send you a copy.

between wiring diagram and electrical panel/cables please contact the manufacturer Only use copper conductors. Failure to use copper conductors could result in overheating or corrosion at connection points To avoid interference, all control wires must be connected separately from the power cables. Use different electrical

Before servicing the unit in any way, open the general sconnecting switch on the unit’s main power supply.

When the unit is off but the disconnecting switch is in the closed position, unused circuits are live, as well.

Never open the terminal board box of the compressors before having opened the unit’s general disconnecting switch. phase and three -phase loads and unbalance between phases could cause leakages towards ground, during the normal operation of the units of the series.

If the unit includes devices that cause superior harmon ics (like VFD and phase cut), the leakage towards ground could ry higher values (about 2 Amp

The protections for the power supply system have to be designed according to the above mentioned values.

is essential that the operator is appropriately trained and becomes familiar with the system before operating the unit. In addition to reading this manual, the operator must study the microprocessor operating manual and the wiring diagram in up sequence, operation, shutdown sequence and operation of all the safety devices.

up phase, a technician authorized by the manufacturer is available to answer any questions and rect operating procedures.

The operator must keep a record of operating data for every installed unit. Another record should also be kept of all the periodical maintenance and servicing activities.

If the operator notes abnormal or unusual operating condit ions, he is advised to consult the technical service authorized by the valves and / or interception

Before compressor start up, be sure that all isolating valves are fully open and back seated and the valve spindle tightl yD - EIMWC01104-12EU - 12/148

ATTENTION Before filling the water circuit, please close the water valves, on the heads of the heat exchangers. Routine maintenance Minimum maintenance activities are listed in Table 2. Service and limited warranty WARRANTY IS VOID IN CASE OF MISSING OF THE MAINTENANCE ROUTINE. These units have been developed and constructed according to high quality standards ensuring years of failure-free operation. It is important, however, to ensure proper and periodical maintenance in accordance with all the procedures listed in this manual and with good practice of machines maintenance. We strongly advise stipulating a maintenance contract with a service authorized by the manufacturer in order to ensure efficient and problem-free service, thanks to the expertise and experience of our personnel. It must also be taken into consideration that the unit requires maintenance also during the warranty period as per below Table 2. It must be borne in mind that operating the unit in an inappropriate manner, beyond its operating limits or not performing proper maintenance according to this manual can void the warranty. Observe the following points in particular, in order to conform to warranty limits:

1. The unit cannot function beyond the specified limits

2. The electrical power supply must be within the voltage

limits and without voltage harmonics or sudden changes.

3. The three-phase power supply must not have un

unbalance between phases exceeding 3%. The unit must stay turned off until the electrical problem has been solved.

4. No safety device, either mechanical, electrical or

electronic must be disabled or overridden.

5. The water used for filling the water circuit must be clean

and suitably treated. A mechanical filter must be installed at the point closest to the evaporator and condenser inlet.

6. Unless there is a specific agreement at the time of

ordering, the evaporator water flow rate must never be above 120% and below 80% of the nominal flow rate. Periodic obligatory checks and starting up of appliances under pressure The units are included in category IV of the classification established by the European Directive PED 97/23/EC. For chillers belonging to this category, some local regulations require a periodic inspection by an authorized agency. Please check with your local requirements.

Important information regarding the refrigerant used This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. Do not vent gases into the atmosphere. Refrigerant type: R134a GWP(1) value: 1300 (1)GWP = global warming potential The refrigerant quantity necessary for standard operation is indicated on the unit name plate. Real refrigerant quantity charged in the unit is listed on a silver sticker inside the electrical panel. Periodical inspections for refrigerant leaks may be required depending on European or local legislation. Please contact your local dealer for more information. Disposal The unit is made of metal, plastic and electronic parts. All these parts must be disposed of in accordance with the local regulations in terms of disposal. Lead batteries must be collected and sent to specific refuse collection centres. Oil must be collected and sent to specific refuse collection centres.D - EIMWC01104-12EU - 13/148

Table 2 - Routine maintenance programme Maintenance Check List Item Daily Weekly Monthly Quartery Annually 5-Yr As Req’d

• Analyze Operational Log

• Ampere Balance (within 10% at RLA)

• Terminal Check (Infrared temperature measurement)

A. Operating Controls

• Calibrate Temperature Sensors/Transducers

• Calibrate Pressure Transducers

• Check Vane Control Setting and Operation

• Verify Load Balance Operation

• Test Operation of: Alarm Relay

High and Low Pressure Cutouts

A. Evaluation of Temp Approach (Note 1)

B. Test Water Quality

E. Seasonal Protection

A. Evaluation of Temp Approach (Note 1)

B. Test Water Quality

D. Eddy current Test - Tube Wall thickness V X E. Seasonal Protection

A.Operational Evaluation (Superheat Control)

A. Examine Contactors (hardware and operation)

B. Verify Overload Setting and Trip

C. Test Electrical Connections (Infrared temp measurement)

O = Performed by in-house personnel.

X = Performed by McQuay authorized service personnel. (Note 4) V = Normally performed by third parties.D - EIMWC01104-12EU - 14/148

NOTES: 1) Approach temperature (the difference between the leaving water temperature and the saturated refrigerant temperature) of either the condenser or evaporator is a good indication of tube fouling, particularly in the condenser, where constant flow usually prevails. McQuay's high efficiency heat exchangers have very low design approach temperatures, in the order of one to one and one half degrees F. 2) The chiller unit controller can display the water and the saturated refrigerant temperatures. Simple subtraction will give the approach. It is recommended that benchmark readings (including condenser pressure drop to confirm future flow rates) be taken during startup and then periodically afterward. An approach increase of two-degrees or more would indicate that excessive tube fouling could be present. Higher than normal discharge pressure and motor current are also good indicators 3) Evaporators in closed fluid circuits with treated water or anti-freeze are not normally subject to fouling, hover it is prudent to check the approach periodically.

4) Performed when contracted for, not part of standard initial warranty service.

This manual is a technical aid and does not represent a binding offer. The content cannot be held as explicitly or implicitly guaranteed as complete, precise or reliable. All data and specifications contained herein may be modified without notice. The data communicated at the moment of the order shall hold firm. The manufacturer shall assume no liability whatsoever for any direct or indirect damage, in the widest sense of the term, ensuing from or connected with the use and/or interpretation of this manual. We reserve the right to make changes in design and construction at any time without notice, thus the cover picture is not binding.DEUTSCHE ÜBERSETZUNG DER ENGLISCHEN ORIGINA Dieses Handbuch liefert dem Fachpersonal hilfreiche Unterstützung, soll und kann dieses Personal aber nicht ersetzen. Vielen Dank für den Kauf dieses Kühlaggregats

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We reserve the right to make changes in design and construction at any time without notice, thus the cover picture is not binding.

Daikin units comply with the European regulations that guarantee the safety of the product.