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TAEevo M05-M10

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

HAPTER

ROUBLE

SHOOTING

PROBLEM CAUSE SYMPTOM REMEDY

Water

temperature

higher than the

expected value.

Thermal load too high.

A1.1

Water temperature higher

than expected value.

Restore the thermal load to

within the preset limits.

Ambient temperature too high.

A2.1

See

A1.1

Restore the ambient

temperature to within the

preset limits.

Condenser fins dirty.

A3.1

See

A1.1

Clean the condenser fins.

Front surface of the condenser

obstructed.

A4.1

See

A1.1

Free the front surface of the

condenser.

No refrigerant fluid in the plant.

A5.1

• See

A1.1

• low evaporation pressure.

Get a technician to

check for leaks and eliminate

them.

Fill the plant.

Probe (-BT1)

faulty

Probe faulty or parameters out of range.

B1.1

Message P1 appears.

Check or renew the probe.

Low water

pressure at

pump outlet.

Clearance between the impeller and the

pump casing too high. Wear parts.

C1.1

Low water pressure at pump

outlet.

Verify and replace the pump

impeller.

The

chille

is obstructed

and the water

does not flow.

Set point too low so that the water

freezes.

D1.1

• Water does not pass;
• intake pressure too low.

Choose between:

• Raise the set point;
• add an appropriate % of

ethylene glycol (antifreeze)
(see

Chapter 5

“Installation“

Evaporator obstructed 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

chille

High pressure

switch (HP)

trips

Fan does not work.

E1.1

The compressor

and the fan stop

Repair or replace the fan.

Where fitted, check the thermal

protection switch of the fan.

Press the reset button on the

cap of the pressure switch.

Ambient air temperature too high.

E2.1

• Air ambient temperature higher

than maximum permitted value;

• See

E1.1

Reduce ambient temperature

within design limits, for

example by increasing local

ventilation.

Press the reset button on the

cap of the pressure switch.

Recirculation of warm air due to incorrect

installation location.

E3.1

• Condenser cooling air

temperature higher than the

permitted value;

• See

E1.1

Change the position of the unit

or the position of any adjacent

obstructions to avoid

recirculation.

Press the reset button on the

cap of the pressure switch.

See

E4.1

See

E1.1

Clean the condenser fins.

Press the reset button on the

cap of the pressure switch.

See

E5.1

See

E1.1

Remove obstruction from

condenser intake.

Press the reset button on the

cap of the pressure switch.

See

E6.1

• Water outlet temperature too

high;

• refrigerant compressor stops.

Restore the thermal load to

within the preset limits.

Press the reset button on the

cap of the pressure switch.

Table 8

ROUBLE

SHOOTING

Содержание TAEevo M05

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

Страница 2: ......

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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