Daikin FUYP125BV1 [9/397] Part 4 commissioning and test run

ESiEN02–01A

Table of Contents vii

4 Error Codes: System Malfunctions

4.1 What Is in This Chapter? ........................................................................ 3–53

4.2 Gas Shortage Detection ................................................................... (U0) 3–54

4.3 Reverse Phase .................................................................................(U1) 3–55

4.4 Transmission Error between Indoor and Outdoor Unit ........... (U4 or UF) 3–57

4.5 Transmission Error between Indoor Unit and Remote Control ........(U5) 3–60

4.6 Transmission Error between MAIN Remote Control

and SUB Remote Control (U8) 3–61

4.7 Malfunctioning Field Setting Switch ................................................. (UA) 3–62

5 Additional Checks for Troubleshooting

5.1 What Is in This Chapter? ........................................................................ 3–65

5.2 Indoor Unit: Checking the Fan Motor Hall IC .......................................... 3–66

5.3 Indoor Unit: Checking the Power Supply Wave Form............................. 3–67

5.4 Outdoor Unit: Checking the Refrigerant System ..................................... 3–68

5.5 Outdoor unit: Checking the Installation Condition ................................... 3–69

5.6 Outdoor Unit: Checking the Discharge Pressure .................................... 3–70

5.7 Outdoor Unit: Checking the Expansion Valve......................................... 3–71

5.8 Checking the Thermistors ....................................................................... 3–72

5.9 R1T and R2T .......................................................................................... 3–73

5.10 R3T ......................................................................................................... 3–74

Part 4

Commissioning and Test Run

1 Pre-Test Run Checks

1.1 What Is in This Chapter? ........................................................................ 4–3

1.2 Test Run Checks .................................................................................... 4–4

1.3 Setting the Infrared Remote Control ....................................................... 4–5

2 Field settings

2.1 What Is in This Chapter? ........................................................................ 4–9

2.2 How to Change the Field Settings with the Wired Remote Control......... 4–10

2.3 How to Change the Field Settings with the Infrared Remote Control...... 4–12

2.4 Overview of the Field Settings of the Indoor Units .................................. 4–13

2.5 Overview of the Factory Settings of the Indoor Units.............................. 4–14

2.6 Setting the Ceiling Height ....................................................................... 4–15

2.7 Setting the Filter Counter ........................................................................ 4–16

2.8 MAIN/SUB Setting when Using Two Remote Controls ........................... 4–17

2.9 Setting the Centralized Group No. .......................................................... 4–18

2.10 The Field Setting Levels ......................................................................... 4–19

2.11 Overview of the Field Settings: R(Y)P71-250B....................................... 4–22

2.12 Jumpers .................................................................................................. 4–23

2.13 DIP switch DS1 ....................................................................................... 4–24

2.14 DIP switch DS2 ....................................................................................... 4–25