Telca TAC-12D-10 Скачать руководство пользователя страница 9

                                                                             

Service manual: TAC-12D-10 

8/9 

 

 

Self-test 

To enter the self-test function, press the 

SET 

button and ▲ button for 5 seconds and 

release. 

Self test steps: 

1 - LED scanning     

 

 

 

3 seconds 

2 - Internal Fan  

 

 

 

 

-- seconds (running all the time) 

3 - Heating   

 

 

 

 

 

30 seconds 

      (Heater) 

4 - Cooling   

 

 

 

 

 

60 seconds 

    (Compressor and external fan) 

5 - External fan   

 

 

 

 

10 seconds 

 

When the self test is completed, controller will automatically exit. During self-testing, you 

can press the 

EXT 

button to exit. 

 

6.

 

Maintenance 

6.1 Trouble Shooting 

The air conditioners are designed for trouble free life as long as the inlet filter is 

maintained in a clean condition. To aid in service definition the service personnel can 

initially identify probable cause by referring to the following trouble shooting chart. 

 

Problem 

Potential Cause 

Solution 

No Power   

Check power source and 
electrical connections 

Fuse Blown on Control Board   

Replace with 3.15A slow blow 
fuse 

Unit not running   

Faulty Control components   

Replace control board 

Filter clogged   

Clean or replace filter 

Blocked evaporator or 
condenser coil 

Clean coil 

Evaporator or condenser fan 
not operating 

Replace motor, capacitor or 
entire assembly 

Unit not cooling 
sufficiently   

Loss of refrigerant or oil leaks 

Return to Telca or locate and 
repair leak 

Insufficient heat load or unit 
oversized for application 

Contact Telca 

Ice on evaporator coil   

Failed evaporator fan   

Replace evaporator fan motor 
or assembly 

Condensate draining 
continuously 

Enclosure not properly 
sealed   

Check and seal all openings 

Defective fan motor or wheel    Replace fan sub assembly. 

Excessive vibration   

Compressor loose   

Tighten mounting bolts 

Содержание TAC-12D-10

Страница 1: ...Telca air conditioner unit TAC 12D 10 Service manual Document No TELCA0 010 0205 Edition No V1 0 TELCA SCIENCE TECHNOLOGY CO LTD...

Страница 2: ...t is thus largely maintenance free All that may be required from time to time is to clean the components of the external air circuit using a vacuum cleaner or compressed air if they become visibly dir...

Страница 3: ...aged packaging are an indication of refrigerant loss and leakage in the unit system Any damage to the packaging may be the cause of subsequent malfunctions After successful test and wire binding the w...

Страница 4: ...onditioner unit into front door of the cabinet position it on the fixing frame bonded with gaskets and rivet it with M4 nuts Care must be taken to ensure that the internal air outlet of the unit is co...

Страница 5: ...ed in the unit please notice the direction of the connector avoid put wrong and tighten the screws of the plug to secure the connection For detail connection details please view figure 4 1 and figure...

Страница 6: ...compressor and heater optional are controlled by a microcontroller Compressor and external fan control If the temperature of internal air inlet exceeds P0 35 C the external fan and compressor will be...

Страница 7: ...ooling cycle time when sensors defective P8 1 1 10 Machine address Keys introduction EXT Press the EXT button once to setting the parameter P2 press or button to modify the setting value press EXT but...

Страница 8: ...void cyclic operation switch on of compressor and external fan is delayed by about 3 minutes after the door has been closed Alarm output The air conditioner is permanently controlled by the microcontr...

Страница 9: ...g to the following trouble shooting chart Problem Potential Cause Solution No Power Check power source and electrical connections Fuse Blown on Control Board Replace with 3 15A slow blow fuse Unit not...

Страница 10: ...owever once the coils become visibly coated with dust it is recommended that they be cleaned with a brush or compressed air Both sides of the coils should be inspected regularly at least once every 12...

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