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7-7

AIR CONDITIONER OPERATES, BUT ABNORMALITIES ARE OBSERVED.

1-POOR COOLING OR HEATING

Does the indoor unit

receive the signal?

Check the remote

controller settings.

See address

chapter 6

Receiver

assy may be

defective

PCB assy

may be

defective

YES

Clean the air filters

Check the air filters.

Are they clogged?

YES

Check the expansion

valve coil. Is it rightly

connected and the

resistance value correct?

Replace the

expansion

valve coil

There is the

possibilty of gas

shortage

YES

Is the remote controller

directly under the airflow

of the unit?

Change the

position of the

remote controller

YES

Is the fan motor set in

low speed?

Set fan speed in

medium or high

speed

YES

Try with

another

remote

controller

Содержание 387005002

Страница 1: ...TECHNICAL DATA SERVICE MANUAL INDOOR UNIT FCIAS8 SPLIT SYSTEM AIR CONDITIONER 0 8180 577 01 09 2012 Model No Product Code No FCIAS8 387005002 ...

Страница 2: ...ow wiring to touch the refrigerant tubing compressor or any moving parts of the fan Do not use multi core cable when wiring the power supply and control lines Use separate cables for each type of line When transporting Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminium...

Страница 3: ...s off function 17 5 16 Capacity Test Mode 17 5 17 Diagnostic 18 5 18 Indoor unit jumpers Configuration 19 5 19 Outdoor unit jumpers Configuration 19 5 20 Contacts for building automation 19 6 INDOOR UNIT AND REMOTE CONTROL ADDRESS 20 6 1 Address Switches only for multisplit 20 6 2 Refrigerant Circuit Check only for multisplit 20 6 3 Changing the Address of the Air Conditioner 20 7 TROUBLESHOOTING ...

Страница 4: ...be mm in Refrigerant Dimensions Weight Unit dimensions Height mm Width mm Depth mm Package dimensions Height mm Width mm Depth mm Weight Net kg Shipping kg Shipping volume m3 DATA SUBJECT TO CHANGE WITHOUT NOTICE 0 21 280 Wireless remote control unit ON OFF 24 hours Daily program 1 hour OFF 770 680 Auto Remote control Washable easy acces long life 2500 hr 43 35 28 See catalogue with the requested ...

Страница 5: ...erating temp Open C Close Run capacitor µF VAC Flap Motor Type Model Rating Coil resistance Ambient temp 25 C Heat Exch Coil Coil Rows Fin pitch mm face area m2 DATA SUBJECT TO CHANGE WITHOUT NOTICE MP24Z2 0 17 0 192 Aluminium plate fin Copper tube 1 8 2 400 7 DC 12 V Stepping motor 440 150 5 Automatic reclosing 1 2 Thermal protection Centrifugal fan K35406 M02046 1 4 1040 SAC DCI IDU Microprocess...

Страница 6: ...1 3 Other Component Specifications Thermistor Coil sensor TH1 Resistance Thermistor Room sensor Resistance k 10 3 NTC THERMISTOR 10 at 25 C 6 ...

Страница 7: ...2 DIMENSIONAL DATA FCIAS8 Units mm Wide Tube Ø 9 52 3 8 7 ...

Страница 8: ...3 PERFORMANCE DATA 3 1 Air Throw Distance Chart FCIAS8 Floor Mounted Ceiling Mounted 8 ...

Страница 9: ...4 ELECTRICAL DATA 4 1 Electric Wiring Diagram 9 ...

Страница 10: ...ns but in any case The minimum time interval between an OFF and a ON operation is not lower than 3 minutes The minimum operating time is not lower than 3 minutes The maximum acceleration deceleration rate is fixed at 50rpm sec During the start up compressor speed increases according to a defined rule which is independent from the thermal load calculation 5 1 2 Multisplit available modes If the uni...

Страница 11: ...n The minimum off time of compressor is 3 minutes The indoor fan can change speed only after it has operated at the same speed for 30 sec if in AUTO and 1 sec for the other settings High Med Low 5 3 Heat Mode Operation The Heating mode operation is similar to the Cooling mode operation The CM FMO and FMI are controlled by the same parameters The FMI will not be turned on until the indoor coil temp...

Страница 12: ... two modes is according to the above graph and following table If 3 C Dt 1 C and the compressor is off for more than 1 hour If Dt 3 C and compressor is off for more than 3 minutes If 1 C Dt 3 C and the compressor is off for more than 1 hour If Dt 3 C and compressor is off for more than 3 minutes Dt RAT SPT Refer to the sections 5 1 COOLING MODE and 5 2 HEATING MODE for system operation details COO...

Страница 13: ...T 1 C LEVEL 2 FMO switches 9 minutes off and 3 minutes ON 15 C FMI switches between L and LL every 30 seconds RV off CM off 15 C DRY OFF ZONE FMO off FMI off RV off SPT Set Point Temperature 5 6 Fan Mode Operation With this mode the indoor fan is turned on while CM FMO and RV stay off all the time The user can select between 3 speeds HIGH MEDIUM and LOW 5 7 Auto Fan speed With this option selected...

Страница 14: ... coil temperature ICT decreases and acts by decreasing the compresor speed The system exit this protection routine when ICT temperature rises above 5 C 5 9 2 Cold draft This feature prevents the supply of cold air forcing the indoor fan to a speed which cannot be changed by the user If the ICT temperature goes down 32 C in descending or does not reach 37 C in rising the speed fan is set as shown b...

Страница 15: ...a built in thermistor is always monitored by the control system and kept operating in a safe area If temperature exceeds 100 C operation is automatically stopped 5 10 4 Outdoor fan power module overheating The module temperature detected by a built in thermistor is always monitored by the control system and kept operating in a safe area If temperature exceeds 100 C operation is automatically stopp...

Страница 16: ...least 12 minutes are elapsed from the start of the defrost cycle 5 12 I FEEL function As standard configuration the air conditioner operates detecting the room temperature through the sensor equipped in the wireless remote controller icon I FEEL shown on the display This feature provides a personalised environment since the temperature can be detected where the remote controller is located It is p...

Страница 17: ... for more than 5 seconds the IFEEL and FAN buttons on the remote controller With this option active the OPERATION TIMER and STANDBY lamps are switched off even during operation they activates only in case of diagnostic signaling 5 16 Capacity Test mode This is a special operating mode used when testing the performance of the A C In this case the main components of the A C compressor outdoor fan in...

Страница 18: ...f more than one trouble present is always showed at first the one with the highest priority 1 2 3 etc Sensor damaged means a situation where sensor is short circuited or opened In case of damaged sensors the system CM FMO FMI etc if in OFF state does not start LD2 opr LD1 stby LD3 timer 4 RAT probe damaged F F O 3 ICT probe damaged F O F 2 communication error F F F 1 fault on outdoor unit O F O 0 ...

Страница 19: ...perate always OFF inputs from wireless remote controller are not processed Contact CLOSED system operates in the normal way according to the inputs coming from wireless remote controller INPUT CONTACT CONNECTOR J11 GREEN STATUS CLOSED OUTPUT CONTACT CONNECTOR J20 RED USED TO SIGNAL AN ALARM CONDITION 5 20 2 Output Contact J20 red This connector is directly tied to the contact normally open of a po...

Страница 20: ...remote control unit directly at the air conditioner receiver System starts and runs for 3 minutes After 3 minutes operation in case the setting is right the unit switches to COOL mode and stops set point 32 C the system is ready to operate in case the setting is wrong the STANDBY lamp flashes check the setting of indoor units and the connections of the refrigerant circuits 6 3 Changing the Address...

Страница 21: ...wer is being supplied WARNING If the following troubleshooting must be done with power supplied be careful not to touch any uninsulated live part that can cause electric shock 7 2 CIRCUIT BREAKER TRIPS OR FUSE BLOWS When circuit breaker is set to ON it trips in a few moments Resetting is not possible Measure insulation resistance There is a possibility of ground fault If resistance value is 1 Mohm...

Страница 22: ...de YES Is the unit in protection mode see par 5 9 e 5 10 Wait some minutes to restore normal condition YES NO CASE 1 CASE 2 There is a fault signaling Check outdoor unit leds signaling see par 5 17 Normal leds configuration 2 IN INDOOR UNIT THERE IS ONE LED ON AT LEAST AND THE UNIT RECEIVES THE REMOTE CONTROL SIGNAL NO see section 7 4 see section 7 6 22 ...

Страница 23: ...the sensor COMMUNICATION ERROR Is the communication fuse blown Replace fuse 100mA The fuse may be not fitted rightly in the fuseholder Check for right connection of communication wires Check outdoor unit Is there any led on See section 6 5 Turn off power supply and after 3 minutes turn on again Outdoor unit PCB assy is defective NO YES YES NO See section 6 6 FAULT ON THE OUTDOOR UNIT Replace outdd...

Страница 24: ...7 4 OUTDOOR UNIT DOES NOT RUN AND NO FAULT IS DISPLAYED 7 5 ONLY OUTDOOR UNIT IS OFF 24 ...

Страница 25: ...The fuse may be not fitted rightly in the fuseholder Check for right connection of communication wires Turn off power supply and after 3 minutes turn on again NO See section 7 3 FAULT ON THE INDOOR UNIT YES COMPRESSOR FAN OVERCURRENT OVERTEMPERATURE Replace the compressor fan YES Measure the resistance of compressor fan motor windings Is it defective Replace outdoor unit PCB NO PFC FAULT Measure t...

Страница 26: ... air filters Check the air filters Are they clogged YES NO Check the expansion valve coil Is it rightly connected and the resistance value correct Replace the expansion valve coil NO There is the possibilty of gas shortage YES Is the remote controller directly under the airflow of the unit NO Change the position of the remote controller YES Is the fan motor set in low speed Set fan speed in medium...

Страница 27: ...IES ARE OBSERVED 2 OPERATION DOES NOT SWITCH FROM HEAT TO COOL AND FROM COOL TO HEAT Remote controller unit may be defective Receiver assy may be defective Check the connection of reversing valve coil Check resistance of reversing valve coil 27 ...

Страница 28: ...7 8 NOISE PROBLEM 28 ...

Страница 29: ...disired electric part from terminal plate PCB assy capacitor etc Similary disconnect the connector Then measure the insulation resistance fig 1 to 4 Refer to electric wiring diagram NOTE If the probe cannot enter the poles because the hole is too narrow then use a probe with a thinner pin 8 2 Checking Continuity of fuse on PCB assy Remove PCB assy from electrical component box fig 5 Then pull out ...

Страница 30: ...Via Varese 90 21013 Gallarate Va Italy Tel 39 0331 755111 Fax 39 0331 776240 www argoclima com ...

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