Danfoss VLT HVAC Basic Drive FC 101 Specifikace Strana 23
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Hodnocené. / 5. Na základě hodnocení zákazníků
2.6.18 Condenser Pumps
Condenser water pumps are primarily used to circulate
water through the condenser section of water cooled
chillers and their associated cooling tower. The condenser
water absorbs the heat from the chiller's condenser section
and releases it into the atmosphere in the cooling tower.
These systems are used to provide the most efficient
means of creating chilled water, they are as much as 20%
more efficient than air cooled chillers.
2.6.19 The VLT Solution
Frequency converters can be added to condenser water
pumps instead of balancing the pumps with a throttling
valve or trimming the pump impeller.
Using a frequency converter instead of a throttling valve
simply saves the energy that would have been absorbed
by the valve. This can amount to savings of 15-20% or
more. Trimming the pump impeller is irreversible, thus if
the conditions change and higher flow is required the
impeller must be replaced.
Frequency
converter
Water
Inlet
Water
Outlet
BASIN
Flow or pressure sensor
Condenser
Water pump
Throttling
valve
Supply
CHILLER
130BB452.10
Illustration 2.14 Condenser Pumps
Product Overview
VLT
®
HVAC Basic Drive FC 101 Design Guide
MG18C502 - Rev. 2013-09-06 21
2 2
- Design Guide 1
- HVAC Basic Drive FC 101 1
- Contents 3
- 1 Introduction 3
- 2 Product Overview 3
- 3 Selection 3
- 4 How to Order 4
- 5 How to Install 4
- 6 How to Programme 4
- 1.5 Additional Resources 8
- Definitions 8
- MG18C502 - Rev. 2013-09-06 7 9
- Power Factor 10
- DANGEROUS VOLTAGE 11
- UNINTENDED START 11
- HIGH VOLTAGE 11
- DISCHARGE TIME 12
- MG18C502 - Rev. 2013-09-06 11 13
- Comparison of Energy Savings 15
- Better Control 16
- Required 17
- Product Overview 18
- 2.6.11 Application Examples 19
- 2.6.12 Variable Air Volume 20
- The VLT Solution 20
- 2.6.14 Constant Air Volume 21
- 2.6.16 Cooling Tower Fan 22
- 2.6.18 Condenser Pumps 23
- 2.6.19 The VLT Solution 23
- 2.6.20 Primary Pumps 24
- Frequency 25
- 130BB454.10 26
- 2.7 Control Structures 27
- 2.7.1 Control Principle 27
- 2.7.3 PM/EC+ Motor Control 27
- On) Control 28
- 2.7.6 Feedback Conversion 28
- 2.7.7 Reference Handling 29
- 2.7.10 Manual PI Adjustment 33
- 2.8 General Aspects of EMC 34
- 2.8.1 Emission Requirements 35
- 2.8.2 EMC Test Results 36
- 175HA034.10 37
- = 3 × 120 × 400 × 38
- 2.8.6 Immunity Requirements 39
- <800 Ω >2.9 kΩ 41
- R1.5 +_ 0.5 43
- Illustration 3.5 H1-H5 44
- Illustration 3.6 Dimensions 44
- 42 MG18C502 - Rev. 2013-09-06 44
- Decoupling Plate 45
- 4.1.2 Type Code String 47
- Ordering Numbers 47
- How to Order 48
- 4.2.2 Harmonic Filters 49
- 4.2.3 External RFI Filter 50
- 5.1.2 Shipping Dimensions 53
- 5.1.4 Field Mounting 54
- 5.2 Electrical Data 55
- U 96 / V 97 / W 98 58
- 130BA262.10 59
- RELAY 1 RELAY 2 60
- How to Install 61
- 130BC203.10 62
- 130BA248.10 63
- MG18C502 - Rev. 2013-09-06 65 67
- 130BB622.10 69
- 130BB624.10 69
- 130BC249.10 69
- Illustration 6.3 Wizard 71
- MG18C502 - Rev. 2013-09-06 69 71
- How to Programme 72
- MotorType = Asynchronous 76
- MotorType = PM Motor 76
- 78 MG18C502 - Rev. 2013-09-06 80
- MG18C502 - Rev. 2013-09-06 79 81
- 130BB795.10 82
- 130BA269.10 85
- E19E H 87
- PKE IND PWE 87
- 130BA092.10 87
- Illustration 7.11 Telegram 88
- Illustration 7.12 Response 88
- 86 MG18C502 - Rev. 2013-09-06 88
- 88 MG18C502 - Rev. 2013-09-06 90
- How to Control the Frequency 92
- Converter 92
- Modbus RTU 92
- 96 and length 5 generates 93
- 7.10 Examples 94
- Read Coil Status (01 HEX) 94
- MG18C502 - Rev. 2013-09-06 97 99
- 8.2 General Specifications 108
- 8.4 dU/Dt 112
- *MG18C502* 124
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