Daikin EUWY 24KBZW1 Series, Service Manual, Page: 6 / 210

ESIE11-02
iv Table of Contents
3
1
4
5
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 Locking and Unlocking the Keyboard ...................................................... 3–27
4.5 Replacing the Controller: EUWA*5-24KBZW1......................................... 3–28
4.6 Replacing the Controller: EUWY*5-24KBZW1......................................... 3–30
4.7 Parameter and Parameter Level Overview.............................................. 3–32
4.8 Replacing the PCB: EUWA*5-24KBZW1 and EUWY*5-24KBZW1......... 3–37
4.9 Soft Starter (option EKSS) Thermal Protection........................................ 3–38
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*5-24KBZW1......................................... 4–8
1.5 External Static Pressure: EUWY*5-24KBZW1......................................... 4–10
1.6 Static Pressure of the Pump for EUWA*5-24KBZW1 and
EUWY*5-24KBZW1 .................................................................................
4–12
1.7 Water Pressure Drop through Evaporator: EUWA*5-12KBZW1.............. 4–14
1.8 Water Pressure Drop through Evaporator: EUWA*16-24KBZW1............ 4–16
1.9 Water Pressure Drop through Evaporator: EUWY*5-12KBZW1.............. 4–18
1.10 Water Pressure Drop through Evaporator: EUWY*16-24KBZW1............ 4–20
1.11 Electrical Checks ..................................................................................... 4–22
1.12 Control of the function of the 4-way valve for EUWY*5-24KBZW1.......... 4–23