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Daikin EUWAC5FZW [134/264] Freeze up control euwa 5 24kzw1 and euwy 5 24kzw1
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ESIE-0302 Functional Description
Part 2 – Functional Description 2–23
3
2
4
5
1
1.18 Freeze-up Control: EUWA*5-24KZW1 and EUWY*5-24KZW1
Functional
description
The freeze-up control is a protection against ice formation in the water circuit at the evaporator outlet.
Characteristics The table below contains the characteristics of the freeze-up protection.
Characteristics for
glycol option
The table below contains the characteristics of the freeze-up protection for the glycol option.
Characteristics Freeze-up protection
Control device Sensor
Diagram name R4T
Activation Outlet water temperature < 4°C
Result: The unit is disabled.
Reset Manually on controller if temperature > 7.5°C
(4°C + anti-freeze hysteresis).
Result: The circuit restarts.
ZL Activation Outlet water temperature < -11.5°C
Reset Manually on controller if temperature > -8°C
(-11.5°C + anti-freeze hysteresis).
ZH Activation Outlet water temperature < -6.5°C
Reset Manually on controller if temperature > -3°C
(-6.5°C + anti-freeze hysteresis).
Содержание
- Service manual 1
- General outline 2
- Introduction 2
- Part 1 system outline 2
- Table of contents 2
- Functional description 3
- Part 2 functional description 3
- Piping layout 3
- Wiring layout 3
- Checking the inputs and outputs 4
- Inputs and outputs overview 4
- Malfunction indications and safeties overview 4
- Part 3 troubleshooting 4
- The digital controller 4
- Part 4 commissioning and test run 5
- Pre test run checks 5
- Troubleshooting 5
- Maintenance 6
- Part 5 maintenance 6
- Test run and operation data 6
- About this manual 8
- Introduction 8
- Part 0 8
- Part 1 system outline 10
- General outline 12
- Part 1 12
- What is in this chapter 12
- Capacity steps 14
- Esie 0302 general outline 14
- Nominal cooling capacity 14
- Nominal cooling input 14
- Part 1 system outline 1 5 14
- Technical specifications euwac5 10fzw1 14
- Technical specifications the table below contains the technical specification 14
- 6 part 1 system outline 15
- Al values are valid for an external static pressure of with factory pulley setting 15
- For reduced setting multiply this water volume by 3 new setting 15
- General outline esie 0302 15
- Hp 50 pa _ 15
- Hp 60 pa 0 turns open 15
- Hp 72 pa 0 turns open 15
- Minimum allowable setting 0 k 15
- Setting euwac5 10fzw1 15
- The minimum water volume for standard thermostat difference setting 3 k 15
- The sound power level is an absolute value that does not depend on the surroundings or the distance iso 9614 it cannot be measured in the field 15
- The table below contains the conditions for the technical specification values 15
- The table below contains the minimum water volume settings 15
- 8 part 1 system outline 17
- General outline esie 0302 17
- Technical specifications euwa 5 8kzw1 17
- Technical specifications the table below contains the technical specifications 17
- Esie 0302 general outline 18
- For reduced setting multiply this water volume by 3 new setting 18
- Minimum allowable setting 0 k 18
- Part 1 system outline 1 9 18
- Setting euwa5 12kzw1 18
- The minimum water volume for standard thermostat difference setting 3 k 18
- The table below contains the minimum water volume settings 18
- Esie 0302 general outline 20
- Part 1 system outline 1 11 20
- Technical specifications euwa 10 12kzw1 20
- Technical specifications the table below contains the technical specifications 20
- 12 part 1 system outline 21
- For reduced setting multiply this water volume by 3 new setting 21
- General outline esie 0302 21
- Minimum allowable setting 0 k 21
- Setting euwa5 12kzw1 21
- The minimum water volume for standard thermostat difference setting 3 k 21
- The table below contains the minimum water volume settings 21
- 14 part 1 system outline 23
- General outline esie 0302 23
- Technical specifications euwa 16 20kzw1 23
- Technical specifications the table below contains the technical specifications 23
- Esie 0302 general outline 24
- For reduced setting multiply this water volume by 3 new setting 24
- Minimum allowable setting 0 k 24
- Part 1 system outline 1 15 24
- Setting euwa16 20kzw1 24
- The minimum water volume for standard thermostat difference setting 3 k 24
- The sound power level is an absolute value that does not depend on the surroundings or the distance it cannot be measured in the field iso 9614 24
- The table below contains the minimum water volume settings 24
- Esie 0302 general outline 26
- Part 1 system outline 1 17 26
- Technical specifications euwa 24kzw1 26
- Technical specifications the table below contains the technical specifications 26
- 18 part 1 system outline 27
- For reduced setting multiply this water volume by 3 new setting 27
- General outline esie 0302 27
- Minimum allowable setting 0 k 27
- Setting euwa24kzw1 27
- The minimum water volume for standard thermostat differ ence setting 3 k 27
- The sound power level is an absolute value that does not depend on the surroundings or the distance it cannot be measured in the field iso 9614 27
- The table below contains the minimum water volume settings 27
- 20 part 1 system outline 29
- General outline esie 0302 29
- Technical specifications euwy5 8kzw1 29
- Technical specifications the table below contains the technical specifications 29
- Esie 0302 general outline 30
- For reduced setting multiply this water volume by 3 new setting 30
- Minimum allowable setting 0 k 30
- Part 1 system outline 1 21 30
- Setting euwy5 12kzw1 30
- The minimum water volume for standard thermostat difference setting 3 k 30
- The table below contains the minimum water volume settings 30
- Esie 0302 general outline 32
- Part 1 system outline 1 23 32
- Technical specifications euwy 10 12kzw1 32
- Technical specifications the table below contains the technical specifications 32
- 24 part 1 system outline 33
- For reduced setting multiply this water volume by 3 new setting 33
- General outline esie 0302 33
- Minimum allowable setting 0 k 33
- Setting euwy5 12kzw1 33
- The minimum water volume for standard thermostat difference setting 3 k 33
- The table below contains the minimum water volume settings 33
- 26 part 1 system outline 35
- General outline esie 0302 35
- Technical specifications euwy 16 20kzw1 35
- Technical specifications the table below contains the technical specifications 35
- Esie 0302 general outline 36
- For reduced setting multiply this water volume by 3 new setting 36
- Minimum allowable setting 0 k 36
- Part 1 system outline 1 27 36
- Setting euwy 16 20kzw1 36
- The minimum water volume for standard thermostat difference setting 3 k 36
- The table below contains the minimum water volume settings 36
- Esie 0302 general outline 38
- Part 1 system outline 1 29 38
- Technical specifications euwy 24kzw1 38
- Technical specifications the table below contains the technical specifications 38
- 30 part 1 system outline 39
- For reduced setting multiply this water volume by 3 new setting 39
- General outline esie 0302 39
- Minimum allowable setting 0 k 39
- Setting euwy24kzw1 39
- The minimum water volume for standard thermostat differ ence setting 3 k 39
- The table below contains the minimum water volume settings 39
- Correction factors for glycol 41
- 34 part 1 system outline 43
- Al values are valid for an external static pressure of with factory pulley setting 43
- Electrical specifications euwac5 10fzw1 43
- Electrical specifications the table below contains the electrical specifications 43
- General outline esie 0302 43
- Hp 50 pa _ 43
- Hp 60 pa 0 turns open 43
- Hp 72 pa 0 turns open 43
- The table below contains the conditions for the electrical specification values 43
- 36 part 1 system outline 45
- Electrical specifications euwa 5 8kzw1 45
- Electrical specifications the table below contains the electrical specifications 45
- General outline esie 0302 45
- 38 part 1 system outline 47
- Electrical specifications euwa 10 12kzw1 47
- Electrical specifications the table below contains the electrical specifications 47
- General outline esie 0302 47
- 40 part 1 system outline 49
- Electrical specifications euwa 16 20kzw1 49
- Electrical specifications the table below contains the electrical specifications 49
- General outline esie 0302 49
- 42 part 1 system outline 51
- Electrical specifications euwa 24kzw1 51
- Electrical specifications the table below contains the electrical specifications 51
- General outline esie 0302 51
- 44 part 1 system outline 53
- Electrical specifications euwy 5 8kzw1 53
- Electrical specifications the table below contains the electrical specifications 53
- General outline esie 0302 53
- 46 part 1 system outline 55
- Electrical specifications euwy 10 12kzw1 55
- Electrical specifications the table below contains the electrical specifications 55
- General outline esie 0302 55
- 48 part 1 system outline 57
- Electrical specifications euwy 16 20kzw1 57
- Electrical specifications the table below contains the electrical specifications 57
- General outline esie 0302 57
- 50 part 1 system outline 59
- Electrical specifications euwy 24kzw1 59
- Electrical specifications the table below contains the electrical specifications 59
- General outline esie 0302 59
- Outlook drawing euwac5fzw1 61
- Outlook drawing euwac8 10fzw1 62
- Outlook drawing euwan5 8kzw1 63
- Outlook drawing euwap5 8kzw1 64
- Outlook drawing euwab5 8kzw1 65
- Outlook drawing euwan10 12kzw1 66
- Outlook drawing euwap10 12kzw1 67
- Outlook drawing euwab10 12kzw1 68
- Outlook drawing euwan16kzw1 69
- Outlook drawing euwap16kzw1 70
- Outlook drawing euwab16kzw1 71
- Outlook drawing euwan20 24kzw1 72
- Outlook drawing euwap20 24kzw1 73
- Outlook drawing euwab20 24kzw1 74
- Outlook drawing euwyn5 8kzw1 75
- Outlook drawing euwyp5 8kzw1 76
- Outlook drawing euwyb5 8kzw1 77
- Outlook drawing euwyn10 12kzw1 78
- Outlook drawing euwyp10 12kzw1 79
- Outlook drawing euwyb10 12kzw1 80
- Outlook drawing euwyn16kzw1 81
- Outlook drawing euwyp16kzw1 82
- Outlook drawing euwyb16kzw1 83
- Outlook drawing euwyn20 24kzw1 84
- Outlook drawing euwyp20 24kzw1 85
- Outlook drawing euwyb20 24kzw1 86
- Part 1 88
- Piping layout 88
- What is in this chapter 88
- Installation outline 89
- Functional diagram refrigeration circuit euwac5 10fzw1 90
- B models 92
- Cooling 92
- Esie 0302 piping layout 92
- Euwa 5 8 10 12 1x euwa 12 20 24 2x refr side 92
- Functional diagram refrigeration circuit euwa 5 24kzw1 92
- Functional diagram the illustration below shows the functional diagram of the refrigeration circuit of euwa 5 24kzw1 it is also applicable for glycol applications 92
- Overview 92
- P models 92
- Part 1 system outline 1 83 92
- Refrigerant side water side b p models euwa16 20 24 water side b p models euwa 5 8 10 12 92
- Water inlet 92
- Water outlet 92
- Water side 92
- Water side n models euwa 5 8 10 12 92
- Water side n models euwa16 20 24 92
- 86 part 1 system outline 95
- B models 95
- Cooling 95
- Euw y16 20 24 euwy5 8 10 12 95
- Evaporator condensor 95
- Functional diagram refrigeration circuit euwy 5 24kzw1 95
- Functional diagram the illustration below shows the functional diagram of the refrigeration circuit of euwy 5 24kzw1 it is also applicable for glycol applications 95
- Heating 95
- P models 95
- Piping diagram 95
- Piping layout esie 0302 95
- Water side b p models euwy16 20 24 water side b p models euwy5 8 10 12 95
- Water side n models euwy16 20 24 95
- Water side n models euwy5 8 10 12 95
- X piping diagram 95
- Part 1 98
- What is in this chapter 98
- Wiring layout 98
- 90 part 1 system outline 99
- Main functions of the euwac5 10fzw1 99
- Main functions the illustration below shows the main circuit of euwac5 10fzw1 99
- Wiring layout esie 0302 99
- Main functions of the euwa 5 24kzw1 and euwy 5 24kzw1 101
- Esie 0302 wiring layout 102
- Part 1 system outline 1 93 102
- Switch box layout euwac5 10fzw1 102
- Switch box layout the illustration below shows the switch box layout of euwac5 10fzw1 102
- Switch box layout euwa 5 24kzw1 and euwy 5 24kzw1 104
- Esie 0302 wiring layout 106
- Part 1 system outline 1 97 106
- Pcb layout of the euwa 5 24kzw1 and euwy 5 24kzw1 106
- Pcb layout the illustration below shows the i o pcb layout of chiller types euwa 5 24kzw1 and euwy 5 24kzw1 106
- Wiring diagram euwac5 10fzw1 110
- Wiring diagram euwa 5 24kzw1 and euwy 5 24kzw1 111
- Part 2 functional description 112
- Functional description 114
- Part 2 114
- What is in this chapter 114
- Operational range euwac5 10fzw1 115
- Operational range euwa 5 24kzw1 116
- 6 part 2 functional description 117
- Functional description esie 0302 117
- Operational range euwy 5 24kzw1 117
- Operational range in cooling mode the illustration below shows the operational range in cooling mode of the euwy 5 24kzw1 117
- Operational range in heating mode the illustration below shows the operational range in heating mode of the euwy 5 24kzw1 117
- Operational flow chart 119
- Compressor working status 120
- Compressor timers 121
- Thermostat control euwac5 10fzw1 122
- 12 part 2 functional description 123
- Controller the table below describes the step difference 123
- Description lower limit upper limit step default 123
- Functional description esie 0302 123
- Functional diagram 16 24hp the illustration below shows the thermostat control of 16 24hp 123
- Functional diagram 5 12hp the illustration below shows the thermostat control of 5 12hp 123
- R2 and or r4 step difference c 0 19 0 3 123
- Thermostat control euwa 5 24kzw1 and euwy 5 24kzw1 123
- Bar 22 bar 124
- Head pressure control euwac5 10fzw1 124
- Head pressure control euwa 5 24kzw1 and euwy 5 24kzw1 126
- Fan working euwac5 10fzw1 128
- Fan working euwa 5 24kzw1 and euwy 5 24kzw1 129
- Crankcase heater 130
- Evaporator heater tape management euwa 5 24kzw1 and euwy 5 24kzw1 131
- Pump steering 132
- Freeze up control euwac5 10fzw1 133
- Freeze up control euwa 5 24kzw1 and euwy 5 24kzw1 134
- Defrost management for euwy 5 24kzw1 135
- Defrost cycles and compressor stop function 140
- Esie 0302 functional description 140
- Illustration compressor stop function 140
- Maximum cycle 10 min timdefrmax 140
- Maximum cycle 12 min timcomprstopx4 timdefrmax 140
- Part 2 functional description 2 29 140
- The illustrations below show the defrost cycle without and with compressor stop during the defrost cycle 140
- The table below describes the minimum and maximum defrost cycles without and with compressor stop 140
- With compressor stop minimum cycle 130 s timcomprstopx4 timdefrmin 140
- Without compressor stop minimum cycle 10 s timdefrmin 140
- Part 2 142
- The digital controller 142
- What is in this chapter 142
- Psç² 143
- The digital controller 143
- Start stop 145
- What happens in case of an alarm or a warning 147
- Settings direct and user parameters 148
- Esie 0302 the digital controller 150
- Introduction 150
- Part 2 functional description 2 39 150
- Reading or adjusting parameter settings the programming procedure 150
- Reading or adjusting to read or adjust parameter settings proceed as follows 150
- When no buttons are pressed for 5 s the display starts flashing 150
- You can exit at every step by leaving the buttons untouched for 1 min the modifications are not saved 150
- Part 3 troubleshooting 152
- Inputs and outputs overview 154
- Part 3 154
- What is in this chapter 154
- Inputs and outputs overview euwac5 10fzw1 155
- Inputs and outputs overview euwa 5 24kzw1 and euwy 5 24kzw1 156
- Inputs outputs overview of the i o pcb euwa 5 24kzw1 and euwy 5 24kzw1 157
- Malfunction indications and safeties overview 160
- Part 3 160
- What is in this chapter 160
- Malfunction indications overview euwac5 10fzw1 161
- Malfunction indications overview euwa 5 24kzw1 and euwy 5 24kzw1 163
- Safeties overview euwac5 10fzw1 165
- Safeties overview euwa 5 24kzw1 and euwy 5 24kzw1 166
- Checking the inputs and outputs 168
- Part 3 168
- What is in this chapter 168
- Checking the temperature sensors 169
- Controller sensors r3t and r4t for euwac 5 10fzw1 170
- Esie 0302 checking the inputs and outputs 170
- Part 3 troubleshooting 3 19 170
- Temp resistance the table below contains the temperature resistance values of the controller sensors 170
- 20 part 3 troubleshooting 171
- Checking the inputs and outputs esie 0302 171
- I o pcb sensors r3t and r4t for euwa 5 24kzw1 and euwy 5 24kzw1 171
- Temp resistance the table below contains the temperature resistance values of the i o pcb sensors r3t and r4t 171
- I o pcb sensors r6t r7t and r8t for euwa 5 24kzw1 and euwy 5 24kzw1 172
- Checking the digital inputs and outputs 173
- Checking the power supply and fuses euwac5 10fzw1 174
- Checking the power supply and fuses euwa 5 24kzw1 and euwy 5 24kzw1 175
- Electrical error overview euwa 5 24kzw1 and euwy 5 24kzw1 176
- Part 3 180
- Troubleshooting 180
- What is in this chapter 180
- Items to be checked 181
- General repair procedures 183
- Unlocking the keyboard 184
- Replacing the controller euwac5 10fzw1 185
- Replacing the controller euwa 5 24kzw1 190
- Replacing the controller euwy 5 24kzw1 195
- Replacing the pcb euwa 5 24kzw1 and euwy 5 24kzw1 201
- Soft starter option ekss thermal protection 202
- Part 4 commissioning and test run 204
- Part 4 206
- Pre test run checks 206
- What is in this chapter 206
- General checks 207
- Water piping checks 208
- Esie 0302 pre test run checks 210
- Part 4 commissioning and test run 4 7 210
- 8 part 4 commissioning and test run 211
- External static pressure euwac5fzw1 211
- Pre test run checks esie 0302 211
- Speed setting euwac5fzw1 has a direct driven fan choose the appropriate speed setting in the illustration below depending on the installation 211
- Values applicable for no headpressure control working only 211
- External static pressure euwa 5 12kzw1 213
- External static pressure euwa 16 24kzw1 215
- External static pressure euwy 5 12kzw1 217
- 1 euwy p b 16kzw1 standard 219
- 16 part 4 commissioning and test run 219
- 2 euwy p b 20kzw1 standard 219
- 3 euwy p b 24kzw1 standard 219
- 4 euwy p b 16kzw1 op pump high 219
- Esp external static pressure of the unit 219
- External static pressure euwy 16 24kzw1 219
- External static pressure the illustration below shows the external static pressure of the unit depending on the water flow and the op pump 219
- Non operation area 219
- Pre test run checks esie 0302 219
- Symbol description 219
- Symbols the table below describes the symbols 219
- Wf waterflow rate 219
- 18 part 4 commissioning and test run 221
- Pre test run checks esie 0302 221
- Static pressure of the pump for euwa 5 24kzw1 and euwy 5 24kzw1 221
- Static pressure the illustration below shows the static pressure of the pump depending on the water flow and the pump type 221
- 20 part 4 commissioning and test run 223
- Esp pa 223
- Motor pulley setting euwac8fzw1 223
- Motor pulley setting euwac8fzw1 has belt driven fans with an adjustable pulley on the motor choose the appropriate pulley setting in the illustration below depending on the installation 223
- Pre test run checks esie 0302 223
- 22 part 4 commissioning and test run 225
- Esp pi af of euwac10fzw 225
- Motor pulley setting euwac10fzw1 225
- Motor pulley setting euwac10fzw1 has belt driven fans with an adjustable pulley on the motor choose the appropriate pulley setting in the illustration below depending on the installation 225
- Pre test run checks esie 0302 225
- Water pressure drop through evaporator euwac5 8 10fzw1 227
- Esie 0302 pre test run checks 228
- Part 4 commissioning and test run 4 25 228
- Water pressure drop the illustration below shows the water pressure drop through evaporator for euwa 5 12kzw1 228
- Water pressure drop through evaporator euwa 5 12kzw1 228
- Esie 0302 pre test run checks 230
- Part 4 commissioning and test run 4 27 230
- Water pressure drop the illustration below shows the water pressure drop through evaporator for euwa 16 24kzw1 230
- Water pressure drop through evaporator euwa 16 24kzw1 230
- Esie 0302 pre test run checks 232
- Part 4 commissioning and test run 4 29 232
- Water pressure drop the illustration below shows the water pressure drop through evaporator for euwy 5 12kzw1 232
- Water pressure drop through evaporator euwy 5 12kzw1 232
- Esie 0302 pre test run checks 234
- Part 4 commissioning and test run 4 31 234
- Water pressure drop the illustration below shows the water pressure drop through evaporator for euwy 16 24kzw1 234
- Water pressure drop through evaporator euwy 16 24kzw1 234
- Setting of the flow switch 236
- Air fan adjustment 238
- Electrical checks 239
- Control of the function of the 4 way valve for euwy5 24kzw1 240
- Part 4 246
- Test run and operation data 246
- What is in this chapter 246
- Test run and operation data for euwac5 10fzw1 247
- Test run and operation data for euwa 5 24kzw1 and euwy 5 24kzw1 248
- Part 5 maintenance 250
- Maintenance 252
- Part 5 252
- What is in this chapter 252
- Maintenance of the main parts 253
- Maintenance of the control devices 255
- Periodical checks 256
- B 8400 ostend belgium 264
- Esie 0302 12 2003 printed in belgium by vanmelle 264
- Internet http www daikineurope com 264
- Zandvoordestraat 300 264
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