ESIE11-02
ii Table of Contents
3
1
4
5
3 Wiring Layout
3.1 What Is in This Chapter? ......................................................................... 1–67
3.2 Main Functions of the EUWA*5-24KBZW1 and EUWY*5-24KBZW1...... 1–68
3.3 Switch Box Layout: EUWA*5-24KBZW1 and EUWY*5-24KBZW1.......... 1–69
3.4 PCB Layout of the EUWA*5-24KBZW1 and EUWY*5-24KBZW1 ........... 1–71
3.5 Wiring Diagram: EUWA*5-24KBZW1 and EUWY*5-24KBZW1............... 1–75
Part 2
Functional Description
1 Functional Description
1.1 What Is in This Chapter? ......................................................................... 2–3
1.2 Operational Range: EUWA*5-24KBZW1 ................................................. 2–4
1.3 Operational Range: EUWY*5-24KBZW1 ................................................. 2–5
1.4 Operational Flow Chart............................................................................ 2–7
1.5 Compressor Working Status.................................................................... 2–8
1.6 Compressor Timers ................................................................................. 2–9
1.7 Thermostat Control: EUWA*5-24KBZW1 and EUWY*5-24KBZW1......... 2–10
1.8 Head Pressure Control: EUWA*5-24KBZW1 and
EUWY*5-24KBZW1 ................................................................................. 2–11
1.9 Fan Working: EUWA*5-24KBZW1 and EUWY*5-24KBZW1 ................... 2–13
1.10 Crankcase Heater.................................................................................... 2–14
1.11 Evaporator Heater Tape Management: EUWA*5-24KBZW1 and
EUWY*5-24KBZW1 ................................................................................. 2–15
1.12 Pump Steering ......................................................................................... 2–16
1.13 Freeze-up Control: EUWA*5-24KBZW1 and EUWY*5-24KBZW1 .......... 2–17
1.14 Defrost Management for EUWY*5-24KBZW1 ......................................... 2–18
1.15 Changeable Digital Inputs........................................................................ 2–24
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