Konfort Series 700R Service Manual TEXA Technical Assistance
I
Copyright © 2014 – TEXA S.p.A.
TABLE OF CONTENTS
INTRODUCTION ………………………………………………………………… 1
GENERAL SAFETY ……………………………………………………………….
2
CHAPTER 1 – COMPARISON BETWEEN R1234yf AND R134a
REFRIGERANTS …………………………………………………………………
4
1.1 Introduction to the Greenhouse Effect ………………………………………… 4
1.2 The Directive 2006/40/CE ………………………………………………………………
4
1.3 Features of the new refrigerant R1234yf …………………………………… 5
1.4 The TEXA solution: Konfort series 700R ……………………………………… 7
CHAPTER 2 – GENERAL WORKING PRINCIPLE ……………………. 9
2.1 Introduction …………………………………………………………………………………… 9
2.2 Detailed description of the single phases …………………………………… 11
2.2.1 Refrigerant Recovery …………………………………………………………… 11
2.2.2 Oil Drain …………………………………………………………………………… 13
2.2.3 Vacuum ………………………………………………………………………………… 13
2.2.4 Leak Test ……………………………………………………………………………… 15
2.2.5 Oil Injection ………………………………………………………………………… 15
2.2.6 UV Injection ………………………………………………………………………… 16
2.2.7 Refrigerant Injection …………………………………………………………… 17
2.3 The Evolution of the BiGas management: refrigerant recovery
and injection into Konfort 780R units ………………………………………
18
2.3.1 Recovery of R134a refrigerant ………………………………………… 18
2.3.2 Recovery of R1234yf refrigerant ……………………………………… 20
2.3.3 Refrigerant R134a injection ……………………………………………… 22
2.3.4 Refrigerant R1234yf injection ……………………………………………… 23
2.4 Refrigerant Recovery on Konfort 705R ………………………………………… 24
CHAPTER 3 – KONFORT SERIES 700R: NEW ARCHITECTURE OF
THE MENU …………………………………………………………………………
26
3.1 Konfort 705R, 710R, 720R: Text menu on blue LCD display ……
26
3.1.1 The AC maintenance menu ……………………………………………………
27
3.1.2 The Additional functions menu …………………………………………… 28
3.1.3 The Settings menu …………………………………………………………… 29
3.1.4 The Service menu ………………………………………………………………… 30
3.2 Konfort 760R, 760R Bus and 780R BiGas: Graphic menu on
color display ………………………………………………………………………………
31
3.2.1 The AC maintenance menu ……………………………………………………
32
3.2.2 The Additional functions menu …………………………………………… 33
3.2.3 The Settings menu …………………………………………………………………
36
3.2.4 The Service menu ……………………………………………………………… 37
CHAPTER 4 – THE SERVICE MENU ………………………………………. 38
4.1 The Service menu ……………………………………………………………………………
38
4.2 The “POWER OUTPUTS” function on K705R, K710R, K720R …… 42
4.3 The “POWER OUTPUTS” function on Konfort 760R, 760R Bus or
780R BiGas ……………………………………………………………………………
48
4.4 The “SENSOR CALIBRATION” function on K705R, K710R, K720R 52
4.4.1 “REFRIGERANT” calibration on K705R, K710R and K720R 52
4.4.2 “UV ADDITIVE” calibration on K710R and K720R ………… 58
4.4.3 “NEW OIL” calibration on K705R, K710R and K720R ……… 58
4.4.4 “MAIN SENSOR” calibration on K705R, K710R and K720R 58
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