Daikin EUWYP10KAZW1 [6/215] Troubleshooting

ESiE04-03

iv Table of Contents

4 Troubleshooting

4.1 What Is in This Chapter? ......................................................................... 3–23

4.2 Items to Be Checked ............................................................................... 3–24

4.3 General Repair Procedures ..................................................................... 3–26

4.4 Unlocking the Keyboard........................................................................... 3–27

4.5 Replacing the Controller: EUWA*5-24KAZW1......................................... 3–28

4.6 Replacing the Controller: EUWY*5-24KAZW1......................................... 3–33

4.7 Replacing the PCB: EUWA*5-24KAZW1 and EUWY*5-24KAZW1......... 3–39

4.8 Soft Starter (option EKSS) Thermal Protection........................................ 3–40

Part 4

Commissioning and Test Run

1 Pre-Test Run Checks

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

1.2 General Checks ....................................................................................... 4–4

1.3 Water Piping Checks ............................................................................... 4–5

1.4 External Static Pressure: EUWA*5-12KAZW1......................................... 4–8

1.5 External Static Pressure: EUWA*16-24KAZW1....................................... 4–10

1.6 External Static Pressure: EUWY*5-12KAZW1......................................... 4–12

1.7 External Static Pressure: EUWY*16-24KAZW1....................................... 4–14

1.8 Static Pressure of the Pump for EUWA*5-24KAZW1 and

EUWY*5-24KAZW1 ................................................................................. 4–16

1.9 Water Pressure Drop through Evaporator: EUWA*5-12KAZW1.............. 4–18

1.10 Water Pressure Drop through Evaporator: EUWA*16-24KAZW1............ 4–20

1.11 Water Pressure Drop through Evaporator: EUWY*5-12KAZW1.............. 4–22

1.12 Water Pressure Drop through Evaporator: EUWY*16-24KAZW1............ 4–24

1.13 Electrical Checks ..................................................................................... 4–26

1.14 Control of the function of the 4-way valve for EUWY*5-24KAZW1.......... 4–27