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6. FUNCTIONS

6-1 Cool Mode Operation

In Cooling Mode, the operation of the compressor (CM), Outdoor Fan (FMO) and Indoor Fan (FMI) are
determined by the difference between the room air temperature (RAT) and the set point temperature (SPT)
as shown in the graph.

NOTES

1. In this graph, the FMI is operating with the “Auto Fan Speed” 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 components (CM, FMO,

FMI) is also controlled by protection delays. That is: - the minimum off time of compressor is 3 minutes. -
- 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).

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Summary of Contents for 39.7718.916

Page 1: ...AL DATA SERVICE MANUAL SMDF117C5TAA SMDF147C5TAA SMDF141C5TAA Model No Product Code No SMDF117C5TAA SMDF147C5TAA 39 7718 916 39 7718 917 Product Code No SMDF141C5TAA 39 7718 918 0 8180 522 1 12 2010 M...

Page 2: ...w 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...

Page 3: ...L DATA 9 4 1 Electric Wiring Diagram 9 5 PERFORMANCE DATA 10 5 1 Performance Chart 10 6 FUNCTIONS 11 6 1 Cool Mode Operation 11 6 2 Dry Mode Operation 12 6 3 Fan Mode Operation 12 6 4 Auto Fan Speed 1...

Page 4: ...te Drain System Dimensions Weight Indoor Unit Height mm Width mm Depth mm Outdoor Unit Height mm Width mm Depth mm Net Weight Internal Unit kg External Unit kg DATA SUBJECT TO CHANGE WITHOUT NOTICE NO...

Page 5: ...M cc Compressor Oil DAPHNE FV68S or equivalent cc Coil Resistance at 20 C at 25 C Run Capacitor C F VAC Overload Relay OLR Operating Temperature Open C Close C Short Time Trip 6 16 Sec At 25 C A DATA...

Page 6: ...her Component Specifications OPERATING RANGE DATA SUBJECT TO CHANGE WITHOUT NOTICE Alluminium Plate Fin Copper Tube 122 10 Alluminium Plate Fin Copper Tube Close Open 3 1 8 0 118 SMDF141C5TAA F83161 3...

Page 7: ...2 DIMENSIONAL DATA 2 1 Unit Dimensions A E C D B A B C D E F 2 2 Unit Dimensions model SMDF141C5TAA 310 440 230 440 525 250 509 800 470 SMDF117C5TAA SMDF147C5TAA F 7...

Page 8: ...3 REFRIGERANT FLOW DATA 3 1 Refrigerant Flow Diagram 8...

Page 9: ...ic Wiring Diagram PCB Controller SWITCH Switch Assy FMI Indoor fan motor IND Indicator assy CM Compressor motor TH Thermistor OLR Overload relay TP Terminal plate FMO Outdoor fan motor FS Float switch...

Page 10: ...istics with relative humidity around 50 SMDF117C5TAA SMDF147C5TAA SMDF141C5TAA 3 4 5 6 20 25 30 35 40 45 50 EXTERNAL TEMPERATURE C OPERATING CURRENT A 21 C 27 C 32 C 4 5 6 7 8 9 20 25 30 35 40 45 50 E...

Page 11: ...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...

Page 12: ...With this option selected the indoor fan speed changes automatically according to the difference between the detected air temperature RAT sensor and the set point SPT COOLING MODE 2 RAT SPT HIGH spee...

Page 13: ...exchanger The protection is activated by the indoor coil temperature ICT sensor and only after 6 minutes of compressor operation This protection acts in 2 levels LEVEL 1 INDOOR FAN SPEED ANY as select...

Page 14: ...nd room temperature is detected through the sensor included in the indoor unit 6 8 NIGHT Function When this function is active room temperature changes automatically to compensate for body temperature...

Page 15: ...st 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 WRONG MODE SELECTED...

Page 16: ...S CONFIGURATION Jumpers are located on the indoor PCB near the MODE button Unit is shipped with jumpers set according to the following table STATUS JUMPER JP1 JP2 JP3 JP4 JP5 open closed open closed c...

Page 17: ...dress 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 S...

Page 18: ...g must be done with power supplied be careful not to touch any uninsulated live part that can cause ELECTRIC SHOCK A CIRCUIT BREAKER TRIPS OR FUSE BLOWS When circuit breaker is set to ON it trips in a...

Page 19: ...ION LAMP IS BLINKING Malfunctioning of the condensate drainanege system NOTE In case of emergency the air conditioner can work by draining the condensate from the little pipe into a rather short conta...

Page 20: ...D 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 protection modes 20...

Page 21: ...E SOME PARTS OF THE AIR CONDITIONER DO NOT OPERATE 21...

Page 22: ...F AIR CONDITIONER OPERATES BUT ABNORMALITIES ARE OBSERVED 22...

Page 23: ...23...

Page 24: ...G POOR COOLING OR HEATING 24...

Page 25: ...H EXCESSIVE COOLING OR HEATING I A SENSOR IS DEFECTIVE 25...

Page 26: ...11 CHECKING ELECTRICAL COMPONENTS 26...

Page 27: ...27...

Page 28: ...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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