Fedders R407C service manual VI. Temperature Control and Measurement, VII. Auto Fan Function

Page 56

VI. Temperature Control and Measurement

1.Temperature Measurement Accuracy

The temperature measurement range of the air-con controller is from -10ºC to 60ºC. Measurement accuracy is given in the following Table:

ºC

+

-

 

ºC

+

-

 

ºC

+

-

 

ºC

+

-

 

ºC

+

-

-10

1

1

 

5

1

1

 

20

1

1

 

35

1

1

 

50

1

1

-9

1

1

 

6

1

1

 

21

1

1

 

36

1

1

 

51

1

1

-8

1

1

 

7

1

1

 

22

1

1

 

37

1

1

 

52

1

1

-7

1

1

 

8

1

1

 

23

1

1

 

38

1

1

 

53

1

1

-6

1

1

 

9

1

1

 

24

1

1

 

39

1

1

 

54

1

1

-5

1

1

 

10

1

1

 

25

1

1

 

40

1

1

 

55

1

1

-4

1

1

 

11

1

1

 

26

1

1

 

41

1

1

 

56

1

1

-3

1

1

 

12

1

1

 

27

1

1

 

42

1

1

 

57

1

1

-2

1

1

 

13

1

1

 

28

1

1

 

43

1

1

 

58

1

1

-1

1

1

 

14

1

1

 

29

1

1

 

44

1

1

 

59

1

1

0

1

1

 

15

1

1

 

30

1

1

 

45

1

1

 

60

1

1

1

1

1

 

16

1

1

 

31

1

1

 

46

1

1

 

 

 

 

2

1

1

 

17

1

1

 

32

1

1

 

47

1

1

 

 

 

 

3

1

1

 

18

1

1

 

33

1

1

 

48

1

1

 

 

 

 

4

1

1

 

19

1

1

 

34

1

1

 

49

1

1

 

 

 

 

Temperature measurement error

2.Room Temperature Control Range

The room temperature control range of the air-con controller is from 16ºC to 31ºC, both inclusive. In manual operation, set temperature is adjusted using the temperature setting

buttons "∧" and "∨" on the hand-held transmitter.

At each press of one of the buttons, the set temperature is changed by 1ºC if it is currently in cool or heat mode until the upper limit of 31°C or the lower limit of 16°C is reached. In Auto mode, pressing the temperature setting buttons will cause the set temperature to change in steps of 2°C until the upper limit of 24°C or the lower limit of 20°C is hit, but the temperature setting will not be displayed on the hand-held transmitter.

VII. Auto Fan Function

Auto fan function is not available in dry and fan modes.

This function will be disabled if the sleep function is later selected. On the other hand, if sleep function is activated first, it is not possible to select the Auto fan function.

In automatic operation, the Auto fan function will be chosen if the air-con operates in cool or heat mode.

F9

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Contents
Fedders Page Section a Specifications Container Loading Section B Parts List and Exploded Views Fedders Large Split AIR CONDITIONERR407C Service Parts List Model Number Fedders Refrigerant Assembly Packaging Parts Page Page Page R407C Refrigerant ASSEMBLYCont Packaging Parts Page Page Page Page Section C Installation Split Type AIR Conditioner Installation Manual Contents Safety Precaution Part Lists Pipe Length, Elevation and refrigerant charge Cutting The Pipe And The CablesRemoving burrs Flaring of pipeInstalling the wall bracket & drilling the piping hole Locating the indoor unitRemoving The Decorative Front Routing the drain hose and tubingDrain hose Use caution When bending Sealing The Drain Hose And TubingWiring The Indoor Unit Attaching The Unit To The Wall BracketConnecting The Piping To The Indoor Unit Outdoor Unit Installation Locating the outdoor unitInstalling The Outdoor Unit Connecting The Pipe To The Outdoor UnitConnecting The Wires To The Outdoor Unit Checking for gas leakage Removing air from the tubing and indoor unitRestraining the piping Switch On The Power Supply Test RUN & CheckUpon completion of installing and checking the unit Checking The UnitSection D Trouble Shooting Page Symptom Diagnosis Remedy Section E Wiring Diagram Page Page Page Page Section F Technical Data Large Split Unit 18 / 24K II. Hand-held Transmitter Applicable on Heat Pump UnitIII. Receiver Module Main Receiver BoardLED Board IV. Operations of the electronic controller LEDStep Cool Mode Cycle Modes of OperationHeat Mode Heat Pump Unit only VI. Temperature Control and Measurement VII. Auto Fan FunctionIndoor Fan Speed VIII. Vane Function Cool or auto-cool mode IX. Sleep FunctionTimer Function ON-OFF-ON OperationHeat mode protection applicable on Heat Pump Unit only XI. Device Protection MeasuresHeat Mode Cycle 10C Indoor coil Temperature 2C Compressor Fan Min 10 min Defrosting in Heat mode applicable on Heat Pump Unit only Defrost Time Chart XII. Thermistor fault indication Heat Overload Protection AlgorithmXIV. Memory Backup of Settings XIII. Self TestF21 F22 F23 F24 F25 F26 F27 F28
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