Technibel Climatisation 38.7104.050 Technical Data & Service Manual Download Page 8 | Manualshive

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1-3 Other Component Specifications

MRAF98R5IAA
MRAF128R5IAA

Trasformer (TR)

Rating

Primary
Secondary
Capacity

Coil resistance

Ω

(at 25°C)

Thermal cut-off temp.

Thermistor ( Coil sensor )

Resistance

k

Ω

Thermistor ( Room sensor )

Resistance

k

Ω

NTC-THERMISTOR

10 at 25 °C

NTC-THERMISTOR

Primary: -

Secondary: -

120°C

10 at 25 °C

0028TRA008

AC 230 V, 50 Hz

13 V - 6VA

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Summary of Contents for 38.7104.050

Page 1: ...TECHNICAL DATA SERVICE MANUAL INDOOR UNIT MRAF98R5IAA MRAF128R5IAA SPLIT SYSTEM AIR CONDITIONER 0 8180 560 00 july 2008 MRAF128R5IAA 38 7104 051 Model No Product Code No MRAF98R5IAA 38 7104 050...

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 19 5 13 Hi Power mode 19 5 14 Night Function 20 5 15 Leds off function 20 5 16 Capacity Test Mode 20 5 17 Diagnostic 21 5 18 Indoor unit jumpers Configuration 22 5 19 Outdoor uni...

Page 4: ...e 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 Shippin...

Page 5: ...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 DATA SUB...

Page 6: ...evices 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 Face area DATA SUBJECT TO CHANGE WITHOUT NOTICE 1 BR...

Page 7: ...ting temp Open C Close Run capacitor F VAC Flap Motor Type Model Rating Coil resistance Ambient temp 25 C Heat Exch Coil Coil Rows Face area DATA SUBJECT TO CHANGE WITHOUT NOTICE BRN WHT 561 8 VLT ORG...

Page 8: ...r 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 THERMISTOR Pri...

Page 9: ...2 DIMENSIONAL DATA MRAF98R5IAA MRAF128R5IAA 9...

Page 10: ...p 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 velocity 0 F...

Page 11: ...ating 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 air ve...

Page 12: ...4 ELECTRICAL DATA 4 1 Electric Wiring Diagrams MRAF98R5IAA MRAF128R5IAA 12...

Page 13: ...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 14: ...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 15: ...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 16: ...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 17: ...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 18: ...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 19: ...efrost detection is ignored until this mode remains 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...

Page 20: ...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 21: ...tem CM 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 outdo...

Page 22: ...5 18 INDOOR UNIT JUMPERS CONFIGURATION Unit is shipped with jumpers set according to the following table JUMPER STATUS JP1 open JP2 open 22...

Page 23: ...5 19 OUTDOOR UNIT JUMPERS CONFIGURATION Unit is shipped with jumpers set according to the following table models GRF98R5IAA GRF128R5IAA JUMPER STATUS JP1 open JP2 closed JP3 open 23...

Page 24: ...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 25: ...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 26: ...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 27: ...6 3 SYSTEM DOES NOT RUN 27...

Page 28: ...he 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 un...

Page 29: ...6 4 OUTDOOR UNIT DOES NOT RUN AND NO FAULT IS DISPLAIED 6 5 ONLY OUTDOOR UNIT IS OFF 29...

Page 30: ...6 6 OUTDOOR UNIT FAULT SIGNALING 30...

Page 31: ...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 32: ...32...

Page 33: ...6 8 NOISY PROBLEM 33...

Page 34: ...7 CHECKING ELETRICAL COMPONENTS 7 1 34...

Page 35: ...7 2 35...

Page 36: ...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...

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