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Danfoss VTT Series Centrifugal Compressor Manuals
Manuals and User Guides for Danfoss VTT Series Centrifugal Compressor. We have
1
Danfoss VTT Series Centrifugal Compressor manual available for free PDF download: Applications And Installation Manual
Danfoss VTT Series Applications And Installation Manual (74 pages)
Variable Twin Turbo Centrifugal Compressors
Brand:
Danfoss
| Category:
Air Compressor
| Size: 11 MB
Table of Contents
Table of Contents
3
Contents
7
Introduction
7
Organization of this Manual
7
Document Symbols
8
Definitions
9
Overview of the VTT Compressor
11
VTT Product Nomenclature
11
Features of the VTT Compressor
13
Configurations of the VTT Compressor Models
13
Compressor Module
13
Capacity Control Using Intraflow
14
Economizer Option
14
Motor Cable Type
14
Magnetic Bearings
14
DC-DC Converter
15
Drive Module
16
Drive Module External Components
17
Drive Module Internal Components
17
Safety Precautions
18
Thermal Memory Retention Compliance
18
Drive Module Logic to Power Interface
19
Power Section
19
Drive Module Control Input and Output Signals
20
Drive Module Electromagnetic Compatibility (EMC) Considerations
20
Electrical and Fire Hazard Protection
20
Drive Module Cooling
20
Cooling Fans
20
Drive Module Technical Specifications
21
Motor Cable Sizing
21
Electronic Control System
21
System Interface Connections
22
Compressor Control Module (CCM) Board
25
Pulse Width Modulator Amplifier (PWM) Board
25
Compressor Interface Module (CIM) Board
26
Sensor Monitoring
27
Step Motor Control
27
Relay Output
27
Compressor Communication Methods
27
CAN Communications
27
RS-485 Communication
27
RS-485 Cable Specifications
29
CIM Circuit Grounding
29
Environment and Application Boundaries
30
Environment Conditions, Storage and Operation
30
Compressor Pressure Limits
30
Maximum Design Pressure
30
Maximum Operating Pressure
30
Mains AC Input Supply Voltage and Frequency
30
Refrigerant Type
31
Drive Module Vibration
32
Industry Approvals and Certifications
32
Refrigerant Piping Design
33
Refrigerant Piping Connections
33
Motor Cooling Connections
33
Motor Cooling Port Specifications
34
Economizer Port Types
34
Drive Module Piping
35
Refrigerant Cooling
36
Cold Plate Tube
36
Piping Design Guidelines
36
General Requirements
36
Motor and Drive Module Cooling Requirements
37
System Piping and Design
37
Refrigeration Schematics
38
Options and Accessories
41
Drive Module Cooling
41
Ancillary Devices
41
Physical Data of the VTT Compressor
42
Compressor Module
42
Drive Module
46
DC-DC Converter Dimensions
50
Installations Guidelines
51
Safety Summary
51
Unpacking and Inspection
51
Required Tools
52
Compressor Module Installation
53
Rigging Requirements
53
Clearance
54
Compressor Installation Instructions
54
Drive Module Installation
56
Safety
56
Planning the Installation
56
Pre-Installation Checks
56
Cooling Fans
56
Airflow
57
Lifting
57
Controls Installation
58
Control Wiring Guidelines
58
CIM Board Jumpers
58
CIM Board Wiring Details
58
CIM Board Mounting and Dimensions
61
CIM Board RS-485 Cable Connections
62
CIM Board RS-485 Cable Termination
62
RS-485 Installation and Set-Up
62
Drive Module Controls Connections
62
Circuit Grounding
63
Drive Module Control Terminal Types
63
Drive Module Modbus and Interlock Connections
64
Drive Module Installing Control Terminals
65
Drive Module Basic Wiring
65
Default Settings
65
Interlock
65
Drive Module Serial Communications
66
Drive Module Installing Control Cables
66
Drive Module RS-485 Bus Termination
67
LED Cover Description
68
Access to Control Terminals
68
Fieldbus Connection
68
Electrical Power Wiring
69
Drive Module Power Connections
69
Mains AC Input Line Connection
70
Grounding Connection Guidelines
70
Safety Grounding Connection
71
Motor Cable Connections
71
Motor Rotation Check
72
DC-DC Converter Supply Connection
72
Connection Tightening Torques
73
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