Panasonic U-72MF1U9E Handbücher

Panasonic U-72MF1U9E Wartungshandbuch (148 Seiten)

Marke: Panasonic | Kategorie: Thermostate | Größe: 6.85 MB |

Englisch

Inhaltsverzeichnis

3WAY VRF SYSTEM

1

IMPORTANT!

2

Please Read Before Starting

2

Check of Density Limit

3

Manifold gauge

4

Vacuum pump

4

CONTENTS

6

1. CONTROL FUNCTIONS

9

1. Introduction

10

3-WAY VRF SYSTEM

11

Control Functions

11

2-3. Outdoor Unit Stop Rules

11

3. Compressor Control

12

4. Special Controls

18

5. Other Controls

24

6-3. Balance Valve (BALV)

26

6-4. Recovery Valve (ORVR)

26

6-5. Bypass Valve (BPV)

26

8. Outdoor Fan Control

29

9. Demand Control

30

10-1. Normal Control

31

10-2. Special Control

32

12. Indoor Special Control

34

13. Discharge Temperature

35

14. Current Protection

36

15. Low Oil Alarm

37

16. Pressure Sensor Failure

38

17. Backup Operation

39

19. Other Functions

44

– MEMO –

46

Contents

47

1. Removing Panels

48

3. Discharging Compressor Oil

51

4. Backup Operation

52

5. Recovering Refrigerant

55

7. Evacuating System

61

8. Charging Compressor Oil

62

10. Compressor

69

12. Replacing 4-way valve

82

1. Overview

86

2. Functions

87

<Sample displays>

91

Display for unit Nos. 1 − 20

92

Display for unit Nos. 21 − 40

92

4. Monitoring Operations

93

6. Mode Settings

96

1. Simple Settings Function

100

2. Detailed Settings Function

102

Remote Controller Functions

113

<Procedure>

114

Test Run Function

114

5. TROUBLE DIAGNOSIS

117

Trouble Diagnosis

118

<Check procedure>

121

4. 3-WAY VRF Alarm Codes

123

6. Inspection of Parts

144

7. Test Pin

145

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