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Danfoss VZH Series Application Guidelines
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I
n
ver
ter scr
oll compr
essors
VZH088-117-170
single and manif
old
R410A
Application guidelines
http://danfoss
.us.c
om/
2
Table of Contents
Vzh088-117-170 Single Compressors
4
Default Chapter
4
Table of Contents
4
VZH Scroll Specificities
6
Variable Speed Compressors
7
Compressor Size
7
Frequency Converter Variants
7
Compressor and Frequency Converter Combinations
7
Nomenclature and Specifications
8
Compressor Nomenclature
8
Frequency Converter Nomenclature
8
Technical Specifications
9
Compressor Specifications
9
Frequency Converter Specifications
9
Oil Injection Control
9
Bearings Lubrication
9
Capacity Tables
10
Dimensions
22
VZH088-G/H Single Version
22
VZH088-G/H Manifolded Version
22
VZH088-J Single Version
23
VZH088-J Manifolded Version
23
VZH117-G/H Single Version
24
VZH117-G/H Manifolded Version
24
VZH117-J Single Version
25
VZH117-J Manifolded Version
25
VZH170-G/H Single Version
26
VZH170-G/H Manifolded Version
26
VZH170-J Single Version
27
VZH170-J Manifolded Version
27
Sight Glass / Oil Level Switch
28
Schrader
28
Oil Equalisation Connection
28
Oil Drain Fitting
28
Suction & Discharge Connections
28
Frequency Converter Dimensions
28
Electrical Data, Connections and Wiring
35
Supply Voltage
35
Compressor Electrical Specifications
35
Fuses / Circuit Breakers
36
Wire Sizes
37
Wiring & EMC Protection
37
EMC Correct Installation of an IP20 Frequency Drive CDS303
38
Wiring Diagram
39
Wiring Connections
40
Electrical Connections
41
Soft-Start Control
41
Phase Sequency and Reverse Rotation Protection
41
IP Rating
41
Motor Protection
41
Voltage Imbalance
41
Approvals and Certificates
42
Pressure Equipment Directive 2014/68/EU
42
Low Voltage Directive 2014/35/EU
42
Internal Free Volume
42
Operating Conditions
43
Application Envelopes
43
Short Cycle Timer Function
43
Discharge Gas Temperature Protection Function
44
Discharge Gas Thermostat
44
Oil Return Management Function (Single Compressor)
45
Oil Return Management in Hybrid Manifolding
45
High and Low Pressure Protection
45
System Design Recommendations
47
Essential Piping Design Considerations
47
Oil Management
48
Heat Exchangers
50
Refrigerant Charge Limits
50
Off-Cycle Migration
50
Liquid Floodback During Operation
51
Specific Application Recommendations
52
Low Ambient Compressor Operations
52
Brazed Plate Heat Exchangers
53
Reversible Heat Pump Systems
53
Defrost Cycle Logic
54
Sound and Vibration Management
56
Running Sound Level
56
Sound Generation in a Refrigeration or Air Conditioning System
56
Compressor Sound Radiation
56
Mechanical Vibrations
56
Speed By-Pass
57
Gas Pulsation
57
Installation
58
Compressor Handling
58
Mounting
58
Removing Connections Shipping Plugs
58
System Cleanliness
59
Tubing
59
Filter Driers
59
Brazing and Soldering
59
Compressor Connection
59
High Voltage Test
61
System Pressure Test
61
Leak Detection
62
Vacuum Pump down and Moisture Removal
62
Refrigerant Charging
62
Loss of Charge Protection
62
Commissioning
62
Oil Level Checking and Top-Up
63
Troubleshooting
64
Ordering Information and Packaging
67
Kit Ordering and Shipping
67
Packaging
67
Ordering Information
67
VZH Voltage Code G - 380-480 Volt
69
VZH Voltage Code G - 525-480 Volt
69
VZH Voltage Code J - 200-240 Volt
70
Accessories
71
Valves, Adapters, Connectors & Gaskets for Use on Suction and Discharge Connections
71
Crankcase Heaters & Thermostats
71
Lubricant, Acoustic Hoods and Spare Parts
71
Spare Parts Frequency Converter
72
Vzh088-117-170 - Hybrid Manifolding Manifold Compressors
74
General Overview
75
Scope
75
Benefits
75
Oil Management Concept
76
Systems
76
Oil Separator
78
Approved Hybrid Tandem Configurations and Capacity Range
80
System Design Recommendation
81
Electronic Expansion Valve
81
Pressure Switch Settings
81
Essential Piping Design Considerations
81
Cycle Rate Limit of SH Compressors
82
Defrost Cycle Logic
82
Installation and Service
83
Handling
83
Compressor Mounting
83
Tightening Torques
83
Rubber Connection
83
Tandem Piping Design
84
Wiring and Rotation Direction
84
Failure Analysis
84
Oil Equalisation Connection
84
Refrigerant Charge Limit
84
Ordering Information
85
Vzh088
87
Compressor Mounting
88
Oil Equalization Connection
88
Suction Washer
89
Vzh117
90
Compressor Mounting
90
Oil Equalisation Connection
91
Suction Washer
91
Vzh170
92
Compressor Mounting
92
Oil Equalisation Connection
93
Suction Washer
93
Other manuals for Danfoss VZH Series
Instructions
4 pages
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Danfoss VZH Series Specifications
General
Compressor Type
Scroll
Variable Speed
Yes
Refrigerant
R410A, R407C
Application
Air Conditioning
Cooling
Air Cooled
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