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TAEevo M05-M10

3

MAINTENANCE AND OPERATING MANUAL

The data inside this manual are not binding and they can be modified by the manufacturer without notice. 

All rights reserved.

C

HAPTER

 2

S

AFETY

This machinery was designed to be safe in the use for which it was planned provided that it is installed, started up and maintained in accordance 
with the instructions contained in this manual.
The manual must therefore be studied by all those who want to install, use or maintain the machinery.
The machine contains electrical components which operate at the line voltage, and also moving parts as fans and/or pumps. It must therefore be 
isolated from the electricity supply network before being opened.
All maintenance operations which require access to the machinery must be carried out by expert or appropriately trained persons who have a 
perfect knowledge of the necessary precautions.

2 . 1

G e n e r a l

When handling or maintaining the unit and all auxiliary equipment, the personnel must operate with care observing all instructions concerning 
health and safety at installation site.
Most accidents which occur during the operation and maintenance of the machinery are a result of failure to observe basic safety rules or 
precautions. An accident can often be avoided by recognising a situation that is potentially hazardous.
The user should make sure that all personnel concerned with operation and maintenance of the unit and all auxiliary equipment have 

read and 

understood

 all warnings, cautions, prohibitions and notes written in this manual as well as on the unit.

Improper operation or maintenance of the unit and auxiliary equipment could be dangerous and result in an accident causing injury or death.

Do not

 operate the unit and auxiliary equipment until the instructions in the Operating section of this manual are understood by all personnel 

concerned.   

Do not

 carry out any servicing, repair or maintenance work on the unit and auxiliary equipment until the instructions in the relevant 

sections of this manual are clearly understood by all personnel concerned.
We cannot anticipate every possible circumstance which might represent a potential hazard. The warnings in this manual are therefore not all-
inclusive. If the user employs an operating procedure, an item of equipment or a method of working which is not specifically recommended, he 
must ensure that the unit and auxiliary equipment will not be damaged or made unsafe and that there is no risk to persons or property.

ATTENTION

The hot / cold water produced by MTA units cannot be used directly for domestic hygiene or food applications. In the case 
of such applications, the installer is responsible for fitting an intermediate exchanger.
If the intermediate exchanger is not fitted, the installer should affix a notice stating "non-drinking water".

2 . 2

G e n e r a l   p r e c a u t i o n s

2.2.1 Liquids to be cooled

The liquids to be cooled must be compatible with the materials used.
These can be water or mixtures of water and glycol, for example. In case of distilled or demineralised water, check the compatibility with 
materials.
It is advisable to work with pH between 7 and 8. If using chemical additives consult your supplier for more information concerning compatibility 
with materials in contact with the process fluid of the chiller.
The liquids to be cooled must not be flammable.

ATTENTION

If the liquids to be cooled contains dangerous substances (e.g. ethylene glycol) it is very important to collect any liquid which leaks because it 
could cause damages to the ambient. Furthermore, when the chiller is no longer used, dangerous liquids must be disposed of by firms specialised 
and authorised for treating them.

2.2.2 Lifting and carriage precautions

Handling the chillers using fork-lift trucks must be carried out in accordance with the drawings in annexes: 

TOC xxx

.

2.2.3 Installation precautions

For the connection to the electrical net see chapter 

 “Installation” 

.

2.2.4 Precautions during operation

Operation must be carried out by competent personnel under a qualified supervisor.    All the cooled water or cooling water piping must be 
painted or clearly marked in accordance with local safety regulations in the place of installation.

ATTENTION

Never remove or tamper with the safety devices, guards or insulation materials fitted to the unit or auxiliary equipment.

All electrical connections must comply with local codes. The unit and auxiliary equipment must be earthen and protected by fuses against short-
circuits and overloading.

ATTENTION

Do not open any electrical panels or cabinets while voltage.

Summary of Contents for TAEevo M05

Page 1: ...CHILLERS MAINTENANCE AND OPERATING MANUAL 38178800511 Original instructions TAEevo M05 M10 ...

Page 2: ......

Page 3: ...alls 8 4 4 Water and refrigerant circuits 8 4 5 Electrical circuit 9 INSTALLATION 9 5 1 Inspection 9 5 2 Positioning 9 5 3 Antifreeze protection 9 5 4 Plumbing connections 10 5 5 Electrical connections 10 START UP 10 ELECTRONIC CONTROL BOARD 11 7 1 Introduction 11 7 2 User interface key functions 11 7 3 Display 12 7 4 Automatic re start 12 7 5 Compressor control 12 7 6 Storage temperature alarm 12...

Page 4: ...this manual are defined by a code with a precise meaning TAEevo Mxx Chiller with Tank Air cooled condenser HErmetic compressor M single phase power supply The table below shows the nominal cooling capacity Referred to the following operating conditions water inlet 20 C water outlet 15 C ambient temperature 25 C ATTENTION This manual provides the user installer and maintenance technician with all t...

Page 5: ...l are therefore not all inclusive If the user employs an operating procedure an item of equipment or a method of working which is not specifically recommended he must ensure that the unit and auxiliary equipment will not be damaged or made unsafe and that there is no risk to persons or property ATTENTION The hot cold water produced by MTA units cannot be used directly for domestic hygiene or food ...

Page 6: ...e operation is to be carried out near any part of the lubrication system or close to a component which may contain oil the system must first be thoroughly purged preferably by steam cleaning Never use a light source with an open flame to inspect any part of the machine Before dismantling any part of the unit ensure that all heavy movable parts are secured When a repair has been completed make sure...

Page 7: ...e vapours are heavier than air and can cause suffocation reducing the oxygen available for breathing Protection of the eyes Safety goggles Protection of the hands Rubber gloves Hygiene measures Do not smoke PHYSICAL AND CHEMICAL PROPERTIES Colour Colourless Odour Similar to ether Boiling point 43 9 C 47 0 F at atm press Flammability point Non flammable Relative density 1 138 kg l at 25 C Solubilit...

Page 8: ...limit working conditions refrigerant condensing temperature is 65 C 149 F refrigerant evaporating temperature is 10 C 50 F PROTECTION As defined by the EN 60529 European standard REFRIGERANT This is the refrigerant fluid in the unit REFRIGERANT QUANTITY This is the quantity of refrigerant fluid contained in the unit MAX COOLING PRESSURE This is the design pressure of the refrigeration circuit MAX ...

Page 9: ... full load in nominal conditions Sound pressure level in hemispherical irradiation conditions at a distance of 1 m 3 2 FT from the condenser side of the unit and height of 1 6 m 5 2 FT from the ground Values tolerance 2 dB Sound power level in compliance with ISO 3744 3 1 2 Limit operating conditions 1 For temperatures below 5 C use antifreeze solutions see 5 3 Antifreeze protection TAEevo MODEL M...

Page 10: ...essure type the air is drawn from the interior of the unit and expelled into the atmosphere flowing through the condensing coil along its route 4 1 5 Evaporator Consisting of a copper tube in tube exchanger The water flows in counter current to the evaporating refrigerant 4 1 6 Pump Of peripheric type body in brass bronze impeller in brass shaft in stainless steel ATTENTION If the pump would clump...

Page 11: ...oom must be well ventilated In some cases it may be necessary to install fans or extractors to limit the temperature of the room 3 The ambient air must be clean and not contain flammable gas or solvents The minimum and maximum working ambient temperatures are specified on the unit data plate In extreme temperature conditions the protection devices may trip 4 The machine can be positioned on any fl...

Page 12: ...electrical supply cable must be the one supplied with the unit and or indicated in the electrical wiring diagrams At the beginning of the electrical supply cable 1 must be guaranteed a protection against direct contacts with a protection degree of IP2X or IPXXB at least 2 must be installed protection devices that protect against overcurrents the power supply cable and the cables not protected by t...

Page 13: ... i n t e r f a c e k e y f u n c t i o n s 7 2 1 Key combinations Key Action Function Pressed once The set point will be displayed Pressed for 3 seconds Chiller set point modification the C LED flashes use keys to change the set point To save the parameter press key or simply wait 15 sec Pressed once Shows maximum temperature value In the programming phase scrolls through the parameter codes or in...

Page 14: ...pressor is started and then stopped when the temperature value returns to the set point value If the probe BT1 develops a fault the activation or deactivation of the output are managed by time by means of the parameters COn and COF 7 6 S t o r a g e t e m p e r a t u r e a l a r m To view the minimum temperature reached Press the message Lo is displayed followed by the minimum temperature reached ...

Page 15: ...essor output according to parameters COn and COF alarm relay changeover P2 Evaporator probe faulty Defrost by time function not active HA High temperature alarm Not modified alarm relay changeover LA Low temperature alarm Not modified function not active alarm relay changeover EA External alarm Not modified alarm relay changeover CA High pressure switch alarm HP i1F bAL Loads off alarm relay chang...

Page 16: ...ent Serves to set the unit of measurement If the unit of measurement is changed the following parameters must be reset Hy LS US Ot ALU ALL C F C rES Resolution Allows the decimal point to be displayed in 1 C dE 0 1 C dE Lod Display Select the probe to be displayed P1 thermostat probe P2 evaporator probe P3 probe P3 not active P4 probe P4 not active Set set point dtr display percentage P1 dLy Tempe...

Page 17: ...tween defrost end and fans start 0 255 min 0 Fct Temperature differential If the temperature difference between the evaporator probe and the cold store probe is higher than the value set in Fct the fans always run 0 59 0 FSt Fans stop temperature If temperature detected by the evaporator probe is higher than FSt the fans are stopped 50 50 C 0 Fon Fans start time with compressor off With the compre...

Page 18: ...gital input configuration Serves to set alarm signalling on the basis of EAL external alarm EA on display bAL critical alarm PAL pressure switch alarm dor door microswitch dEF defrost activation AUS not enabled Htr reverse action hot cold FAN not enabled ES not enabled OFb not enabled bAL did Digital input alarm delay Serves to set the time lag before activation of the digital input alarm i1F EAL ...

Page 19: ...display The alarm terminates automatically as soon as the digital input is deactivated Temperature alarms are inhibited when the door is open i1F EAL External alarm An alarm is generated after the delay set by parameter did from activation of the input an alarm is generated the message EA is displayed and the status of the outputs is not changed The alarm switches off automatically as soon as the ...

Page 20: ...screwed to a SCHRAEDER valve which prevents the refrigerant from leaking The TRIP and RESET values of the pressure switch are indicated in the following table CHAPTER 9 OPERATION AND MAINTENANCE 9 1 O p e r a t i o n The machine operates in completely automatic mode There is no need to turn it off when there is no thermal load as it turns off automatically when the preset water temperature has bee...

Page 21: ... maintenance OPERATION 1 day 1 month 6 months annually Check control panel display for any alarm signals Check that the water output temperature is within the envisaged range Check that the water intake temperature is lower than the value used for selecting the chiller Check that the ambient temperature is lower than the value used for selecting the chiller Check that the environment is well venti...

Page 22: ...ructed by dirt carried by the water to be cooled D2 1 High water temperature difference between inlet and outlet Depending on the type of dirt clean the evaporator by running a detergent solution which is not aggressive for steel aluminium and copper run a high water flow against the stream Install a filter upstream from the chiller E High pressure switch HP trips E1 Fan does not work E1 1 The com...

Page 23: ...ine H1 1 The fan and electronic board do not work at the same time even if there is electric power Check the components and wiring with a tester Replace the damaged component or wiring Change the fuse I The compressor does not start signalled by compressor LED flashing J Compressor delay on K The compressor does not start Verify parameters OdS AC L The temperature is over the set limit but there i...

Page 24: ...TAEevo M05 M10 22 The data inside this manual are not binding and they can be modified by the manufacturer without notice All rights reserved ...

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