ESIE11-02
Functional Description
Part 2 – Functional Description
2–15
3
2
4
5
1
1.11
Evaporator Heater Tape Management: EUWA*5-24KBZW1 and
EUWY*5-24KBZW1
Functional
description
The evaporator heater tape management protects the evaporator (and field piping) against freezing.
When the compressors 1 and 2 are switched off and the ambient temperature is low, then the
evaporator heater, field heater and buffertank heater (K6A) are switched on.
If a single circuit is selected, only detect on compressor 1 (based on S1Adip).
Heater tape
management
The illustration below shows the heater tape management.
Heater tape control
The I/O board controls the function of the evaporator heater tape. No separate power supply is
foreseen for the evaporating heater tape. When the main switch is switched off, the heater tape has
no power and does not work.
Illustration heater
tape management
The illustration below shows the evaporator heater tape management.
Heater tape OFF
Heater tape ON
3°C
6°C
T
ambient
The heater tape will be activated if...
The heater tape will be deactivated if...
■
The ambient temperature is lower or equal
then 3°C.
■
And the status of the compressor is OFF.
■
The ambient temperature is higher or equal
then 6°C.
■
And the status of the compressor is ON.
R6T: Ambient
DI3: M1C
detection
DI4: M2C
detection
Evaporator
heater tape
management
RY6: Heater tape
Summary of Contents for EUWAB10KBZW1
Page 2: ......
Page 8: ...ESIE11 02 vi Table of Contents 3 1 4 5...
Page 10: ...Introduction ESIE11 02 viii 3 1 4 5...
Page 12: ...ESIE11 02 1 2 Part 1 System Outline 3 1 1 5...
Page 86: ...Wiring Layout ESIE11 02 1 76 Part 1 System Outline...
Page 88: ...ESIE11 02 2 2 Part 2 Functional Description 3 1 2 5...
Page 128: ...The Digital Controller ESIE11 02 2 42 Part 2 Functional Description 3 1 2 4 5...
Page 130: ...ESIE11 02 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 168: ...ESIE11 02 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Page 198: ...Test Run and Operation Data ESIE11 02 4 32 Part 4 Commissioning and Test Run 3 1 4 5...
Page 200: ...ESIE11 02 5 2 Part 5 Maintenance 3 1 5...
Page 210: ...ESIE11 02 4 Index 3 1 4 5...