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5-9 Protection operations in Heat Mode

5-9.1 Cold draft

This feature prevents the supply of cold air forcing the indoor fan to a speed which cannot be changed
by the user. As soon as the protection mode is exited speed can be changed manually through the
remote controller. The protection acts in the following

5-9.2 Defrost

The defrost process is controlled by a detection algorithm designed in order to mantain optimal
utilization of the heat pump capacity especially during negative outdoor temperature conditions.
During DEFROST OPERATION the main components operates according to the following chart:

HEAT PUMP MODELS

30 seconds

30 seconds

6 seconds

6 seconds

20

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Содержание 38.7104.070

Страница 1: ...AA MPAF90C5TAA MPAF120R5TAA MPAF120C5TAA SPLIT SYSTEM AIR CONDITIONER MPAF120C5TAA HEAT PUMP MODELS COOLING MODELS Model No Product Code No 38 7104 073 0 8180 625 00 October 2011 MPAF90R5TAA 38 7104 0...

Страница 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...

Страница 3: ...Heat Mode 19 5 10 I Feel Function 21 5 11 Night Function 21 5 12 Diagnostic 22 5 13 Jumpers Configuration 23 5 14 Contacts for Building Automation 24 5 15 Maintenance 25 6 TROUBLESHOOTING 26 6 1 Chec...

Страница 4: ...Wide 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...

Страница 5: ...igerant 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...

Страница 6: ...devices 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 WITHO...

Страница 7: ...rating 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 YEL OR...

Страница 8: ...rimary Secondary Capacity Coil resistance at 25 C Thermal cut off temp Thermistor Coil sensor Resistance k Thermistor Room sensor Resistance k A040C5026AA AC 230 V 50 Hz 13 V 5VA NTC THERMISTOR 10 at...

Страница 9: ...2 DIMENSIONAL DATA 9...

Страница 10: ...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 Flap a...

Страница 11: ...igh 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...

Страница 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...

Страница 13: ...4 ELECTRICAL DATA 4 1 Electric Wiring Diagrams HEAT PUMP MODELS COOLING MODELS 13...

Страница 14: ...4 2 Wiring System Diagram HEAT PUMP MODELS COOLING MODELS 14...

Страница 15: ...eed setting If the user has selected the Low Medium or High fan speed the FMI will run constantly at that speed only 2 In addition to the temperature difference of above the operations of the main com...

Страница 16: ...ically according to the RT SPT NOTES 1 After the CM has stopped the FMI runs for 30s in order to purge heat from the indoor coil 2 The FMI will not be turned on until the indoor coil temperature is wa...

Страница 17: ...he Auto Cooling and Auto Heating in order to maintain the room temperature RAT at the prescribed set point SPT The switching between the two modes is according to the above graph Refer to the sections...

Страница 18: ...and 3 minutes ON 15 C FMI switches off and L during CM operation RV off CM off 15 C DRY OFF ZONE FMO off FMI off RV off SPT Set Point Temperature 5 5 Fan Mode Operation With this mode the indoor fan...

Страница 19: ...ode 8 1 Freeze up This protection prevents ice formation on the indoor coil heat exchanger The protection is activated by the indoor coil temperature ICT sensor and only after 6 minutes of compressor...

Страница 20: ...manually through the remote controller The protection acts in the following 5 9 2 Defrost The defrost process is controlled by a detection algorithm designed in order to mantain optimal utilization o...

Страница 21: ...9 3 Overheat This feature prevents the build up of high pressure in the indoor heat exchanger during heating operation MPAF90C5T MPAF120C5T MPAF90R5T MPAF120R5T A C 60 62 B C 55 57 C C 46 48 A B C 21...

Страница 22: ...ated It is possible to de activate this option pressing the I FEEL button on the remote controller In this case the I FEEL icon is no longer displayed and room temperature is detected through the sens...

Страница 23: ...howed according a priority list that is in case of 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...

Страница 24: ...door PCB near the MODE button Unit is shipped with jumpers set according to the following table JUMPER HEAT PUMP MODELS JP1 open JP2 open JP3 open JP4 closed JP5 closed closed open closed open closed...

Страница 25: ...processed Contact CLOSED system operates in the normal way according to the inputs coming from wireless remote controller 5 14 2 Output Contact J12 This connector is directly tied to the contact norm...

Страница 26: ...address of the air conditioner Dip switch is located on the indoor PCB near the buzzer Set the PCB to the address desidered UNIT ADDRESS SW1 SW2 1 off off 2 off on 3 on off 4 on on As default switches...

Страница 27: ...g must be done with power supplied be careful not to touch any uninsulated live part that can cause eletric shock 6 2 Circuit Breaker Trips or Fuse Blows When circuit breaker is set to ON it trips in...

Страница 28: ...does not run 6 4 Unit and Compressor Do Not Run The unit does not run when air conditioner is in the follwing conditions When the room temperature is below the setting temperature During the protecti...

Страница 29: ...6 5 Some Parts of the Air Conditioner Do Not Operate 5...

Страница 30: ...6 6 Air Conditioner Operates But Abnormalities Are Observed 6...

Страница 31: ...7...

Страница 32: ...6 7 Poor Cooling or Heating 8...

Страница 33: ...6 8 Excessive Cooling or Heating 6 9 A Sensor is Defective 9...

Страница 34: ...ower wires fig 1 b Unit Clamp an alluminium plate fin or copper tube with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on N terminal and then on Lter...

Страница 35: ...wires from the capacitor terminals and then place a probe on the capacitor terminals as shown in fig 7 Observe the deflection of the pointer setting the resistance measuring range of the multimeter t...

Страница 36: ...T l 04 74 00 92 92 Fax 04 74 00 42 00 R C S Bourg en Bresse B 759 200 728 R D 28 Reyrieux BP 131 01601 Tr voux CEDEX France...

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