Ecotechnics VA500, Руководство по обслуживанию

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The data, information and descriptions, and the technology described herein are the exclusive intellectual property of Ecotechnics S.p.A. and constitute industrial
secrets. Said information is communicated in strict confidentiality; said information may be used only for the purpose for which it is communicated; said information
may not be divulged, communicated, or revealed to third parties and/or reproduced by any means for any reason whatsoever; said information is protected under
applicable Italian competition and industrial property law.
Service manual VA500-VA750 ed.1 ver.5.05 [MANU360.SA0].doc pag.19 - 18/10/2005
TROUBLESHOOTING
FULL BOTTLE ALARM
- Transfer refrigerant from unit tank to approved refrigerant storage tank.
- Check the scale calibration
- Check if the max=10.000g
EMPTY BOTTLE ALARM
- Transfer refrigerant from approved refrigerant storage tank to unit tank.
- Check the scale calibration
- Check if the min=2.000g
SERVICE ALARM
- Remove and replace the filter-drier. See REPLACING THE FILTER-DRIER and change
the oil of the vacuum pump
HIGH PRESSURE ALARM
- remove the air from the bottle as describe into “purge non condensable gas” paragraph
of the user manual. Repeat another recovery phase, if air accumulate again into the
bottle it means that the machine is sucking air, please verify leaks on the piping.
- Open the machine, verify that the valve under the high pressure dryer filter and the two
valves over the refrigerant bottle are all open
- Gaskets of the hose (s) connected to the internal bottle are distorted. Substitutes with
new ones, cod. GUA0002
NO DISPLAY WHEN MAIN POWER SWITCH IS ON
- Blown main fuse, Replace fuse 8A
- verify connection LINE IN into the motherboard
- verify the voltage into the LINE IN wiring,
a. it is 230 +/-10%: substitute the motherboard
b. it is NOT 230 +/-10%: substitute the LINE IN wiring
FLUCTUATION OF THE READING OF THE REFRIGERANT
- verify the power supply voltage must be 220 +/-10%:
- verify bottle load cell connection J15 to the motherboard
- verify wiring connection to bottle load cell
- replace refrigerant bottle load cell
- replace motherboard
VACUUM PUMP DOESN’T START
- ERROR: “02”; make another recovery phase, if the recovery phase doesn’t finish,
please refer “the machine doesn’t finish the recovery” paragraph