Daikin EUWYP12KAZW1 [5/215] Malfunction indications and safeties overview

ESiE04-03

Table of Contents iii

2 The Digital Controller

2.1 What Is in This Chapter? ........................................................................ 2–25

2.2 The Digital Controller .............................................................................. 2–26

2.3 Start/Stop ................................................................................................ 2–28

2.4 What Happens in Case of an Alarm or a Warning .................................. 2–30

2.5 Settings: Direct and User Parameters .................................................... 2–31

2.6 Reading or Adjusting Parameter Settings: the Programming Procedure 2–33

Part 3

Troubleshooting

1 Inputs and Outputs Overview

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

1.2 Inputs and Outputs Overview: EUWA*5-24KAZW1 and

EUWY*5-24KAZW1 ................................................................................ 3–4

1.3 Inputs/outputs overview of the I/O PCB: EUWA*5-24KAZW1 and

EUWY*5-24KAZW1 ................................................................................ 3–5

2 Malfunction Indications and Safeties Overview

2.1 What Is in This Chapter? ........................................................................ 3–7

2.2 Malfunction Indications Overview: EUWA*5-24KAZW1 and

EUWY*5-24KAZW1 ................................................................................ 3–8

2.3 Safeties Overview: EUWA*5-24KAZW1 and EUWY*5-24KAZW1.......... 3–10

3 Checking the Inputs and Outputs

3.1 What Is in This Chapter? ........................................................................ 3–13

3.2 Checking the Temperature Sensors ....................................................... 3–14

3.3 I/O PCB sensors: R3T and R4T for EUWA*5-24KAZW1 and

EUWY*5-24KAZW1 ................................................................................ 3–15

3.4 I/O PCB sensors: R6T, R7T and R8T for EUWA*5-24KAZW1 and

EUWY*5-24KAZW1 ................................................................................ 3–16

3.5 Checking the Digital Inputs and Outputs................................................. 3–17

3.6 Checking the Power Supply and Fuses: EUWA*5-24KAZW1 and

EUWY*5-24KAZW1 ................................................................................ 3–18

3.7 Electrical Error Overview: EUWA*5-24KAZW1 and EUWY*5-24KAZW1 3–19