Content
GENERAL INFORMATION ........................ 4
How do IDVs work? ................................................... 5
Compressor model designation ..............6
Nomenclature ............................................................ 6
Technical specifications ............................7
Dimensions ..............................................10
VZH052-065G/J/H ................................................... 10
Electrical data, connections and wiring 13
Supply voltage ......................................................... 13
Phase sequence and reverse rotation
protection .................................................................. 15
IP rating ....................................................................... 16
Motor protection..................................................... 16
Approval and certificates .......................17
Low voltage directive 2014/35/EU .................... 17
Internal free volume............................................... 17
Direct and indirect exposure of drive to water
Condensation ........................................................... 18
Dust Exposure .......................................................... 18
Mechanical Mounting ........................................... 18
Ambient temperature ........................................... 19
EMC installation ..................................... 20
EMC best practices .................................................20
EMC remediation ....................................................20
EMC remediation .................................................... 21
Mechanical dimension ......................................... 21
Unit Architecture .................................... 22
Design piping ......................................... 23
General requirements ...........................................23
Design compressor mounting .............. 24
General requirements ...........................................24
Single requirements...............................................24
Manage oil in the circuit ........................ 25
Requirement .............................................................25
System evaluation ..................................................25
Test, criteria and solutions ...................................25
Manage sound and vibration ................ 26
Compressor sound radiation ..............................26
Mechanical vibrations ...........................................27
Gas pulsation ............................................................27
Manage superheat ................................. 28
Requirement .............................................................28
System evaluation ..................................................28
Test, criteria and solutions ...................................29
Manage off cycle migration ................... 30
Requirement .............................................................30
System evaluation .................................................30
Manage operating envelope ................. 32
Requirement .............................................................32
System evaluation ..................................................33
Manage speed limit .................................37
Speed limit requirement ......................................37
Start/Stop/Ramp setting ......................................37
Control logic ........................................... 38
Safety control logic requirements ....................38
Short cycle protection .........................................39
Defrost cycle logic ..................................................39
Pump-down logic recommendations .............39
Oil management logic ..........................................40
Reduce moisture in the system ..............41
Requirements ........................................................... 41
Solutions..................................................................... 41
INTEGRATION INTO SYSTEMS .............. 42
Assembly line procedure ....................... 42
Compressor storage ...............................................42
Compressor holding charge ...............................42
Handling ....................................................................42
Piping assembly.......................................................43
System pressure test and leak detection .......43
Vacuum evacuation and moisture removal .44
Refrigerant charging ..............................................44
Dielectric strength and insulation resistance
tests ..............................................................................44
Commissioning ....................................... 45
Preliminary check....................................................45
Initial start-up ...........................................................45
System monitoring .................................................45
Oil level checking and top-up ............................45
Troubleshooting ..................................... 46
Dismantal and disposal ......................... 49
ORDERING INFORMATION ................... 50
Packaging ............................................... 50
Ordering codes ........................................51
Accessories ...............................................52
3
AB237586440343en-000601