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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 maintenance

5-21

NO

Receiver

assy may be

defective

PCB assy

may be

defective

YES

Clean the 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 or high

speed

YES

NO

Try with

another

remote

controller

32

Summary of Contents for MPAF129R5IAA

Page 1: ...OOR UNIT MRAF99R5IAA MRAF129R5IAA MPAF99R5IAA MPAF129R5IAA SPLIT SYSTEM AIR CONDITIONER Model No Product Code No MRAF99R5IAA 38 7104 065 MRAF129R5IAA 38 7104 062 MPAF99R5IAA 38 7104 065 MPAF129R5IAA 3...

Page 2: ...ing 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...

Page 3: ...5 12 I Feel Function 20 5 13 Hi Power mode 20 5 14 Night Function 21 5 15 Leds off function 21 5 16 Capacity Test Mode 21 5 17 Diagnostic 22 5 18 Indoor unit jumpers Configuration 23 5 19 Outdoor unit...

Page 4: ...de tube mm in Refrigerant Refrigerant tube kit Air clean filter Dimensions Weight Unit dimensions Height mm Width mm Depth mm Package dimensions Height mm Width mm Depth mm Weight Net kg Shipping kg S...

Page 5: ...gerant Refrigerant tube kit Air clean filter 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 D...

Page 6: ...ces Type Operating temp Open C Close Run capacitor F VAC Flap Motor Type Model Rating Coil resistance Ambient temp 25 C Heat Exch Coil Coil Rows Fin pitch mm Face area DATA SUBJECT TO CHANGE WITHOUT N...

Page 7: ...ng temp Open C Close Run capacitor F VAC Flap Motor Type Model Rating Coil resistance Ambient temp 25 C Heat Exch Coil Coil Rows Fin pitch mm Face area DATA SUBJECT TO CHANGE WITHOUT NOTICE BRN WHT 56...

Page 8: ...IAA Trasformer TR Rating Primary Secondary Capacity Coil resistance at 25 C Thermal cut off temp Thermistor Coil sensor Resistance k Thermistor Room sensor Resistance k NTC THERMISTOR 10 at 25 C NTC T...

Page 9: ...2 DIMENSIONAL DATA MRAF99R5IAA MRAF129R5IAA 9...

Page 10: ...2 DIMENSIONAL DATA MPAF99R5IAA MPAF129R5IAA 10...

Page 11: ...ir temp 20 C Fan speed High Heating Horizontal distance m Axis air verocity m s Vertical distance m Room air temp 27 C Fan speed High Cooling 0 1 2 3 4 0 1 2 3 4 5 6 7 8 9 Flap angle 0 Axis air veloci...

Page 12: ...High Heating Horizontal distance m Axis air verocity m s Vertical distance m Room air temp 27 C Fan speed High Cooling 0 1 2 3 4 0 1 2 3 4 5 6 7 8 9 Flap angle 0 Axis air velocity 0 Flap angle 30 Axis...

Page 13: ...4 ELECTRICAL DATA 4 1 Electric Wiring Diagrams MRAF99R5IAA MRAF129R5IAA MPAF99R5IAA MPAF129R5IAA 13...

Page 14: ...a button is pressed and in any case automatically every 5 minutes 5 1 1 control specification During operation compressor speed can be subjected to change due to thermal load variations or protection...

Page 15: ...n 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 Coo...

Page 16: ...s 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 compres...

Page 17: ...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 Mo...

Page 18: ...s activated as soon as the indoor coil temperature ICT decreases and acts by decreasing the compresor speed The system exit this protection routine when ICT temperature rises above 8 C 5 9 2 Cold draf...

Page 19: ...ting 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 stoppe...

Page 20: ...s active System exits defrost protection as soon as 14 C on the outdoor coil are detected and in any case if at least 12 minutes are elapsed from the start of the defrost cycle 5 12 I FEEL function As...

Page 21: ...e 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...

Page 22: ...M FMO FMI etc if in OFF state does not start Priority INDOOR UNIT FAULT LD1 stby LD2 opr LD3 timer 4 RAT probe damaged F F O 3 ICT probe damaged O F F 2 communication error F F F 1 fault on outdoor un...

Page 23: ...5 18 INDOOR UNIT JUMPERS CONFIGURATION Unit is shipped with jumpers set according to the following table JUMPER STATUS JP1 open JP2 open 23...

Page 24: ...5 19 OUTDOOR UNIT JUMPERS CONFIGURATION Unit is shipped with jumpers set according to the following table models GRF99R5IAA GRF129R5IAA JUMPER STATUS JP1 open JP2 closed JP3 open 24...

Page 25: ...OSED system operates in the normal way according to the inputs coming from wireless remote controller 5 20 2 OUTPUT CONTACT J20 This connector is directly tied to the contact normally open of a power...

Page 26: ...e controller The PCB settings must match the corresponding ones on the wireless remote controller How to change address of the air conditioner Set the PCB to the address desidered UNIT ADDRESS 1 2 1 o...

Page 27: ...er 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 6 2 CIRCUIT BREAKER TRIPS...

Page 28: ...6 3 SYSTEM DOES NOT RUN 28...

Page 29: ...6 3 SYSTEM DOES NOT RUN 29...

Page 30: ...6 4 OUTDOOR UNIT DOES NOT RUN AND NO FAULT IS DISPLAIED 6 5 ONLY OUTDOOR UNIT IS OFF 30...

Page 31: ...6 6 OUTDOOR UNIT FAULT SIGNALING 31...

Page 32: ...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 possi...

Page 33: ...3 CHECK MODE BUTTON OPERATION ON THE UNIT Push the mode button The unit does not run PCB assy is defective 33...

Page 34: ...6 8 NOISY PROBLEM 34...

Page 35: ...7 CHECKING ELETRICAL COMPONENTS 7 1 35...

Page 36: ...7 2 36...

Page 37: ...0 8180 582 00 05 2009 R D 28 Reyrieux BP 131 01601 Tr voux CEDEX France T l 04 74 00 92 92 Fax 04 74 00 42 00 R C S Bourg en Bresse B 759 200 728 37...

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