Danfoss scroll compressors
VZH088-117-170 Gen3
Single
R410A
Application guidelines
www.danfoss.com
Content
GENERAL INFORMATION ........................ 4
Features..................................................... 5
Compressor model designation ............. 6
Technical specifications ........................... 7
Dimensions ............................................. 10
Electrical data, connections and wiring 24
Supply voltage ........................................................... 24
Phase sequence and reverse rotation
protection .................................................................... 27
Sound level and acoustic hood ........................... 28
IP rating ......................................................................... 29
Motor protection ....................................................... 29
Approval and certificates ...................... 30
SYSTEM DESIGN ..................................... 31
System design generalities ................... 31
Compressor capacity and modulation ..............31
Differences between variable speed and
fix in speed unit design ............................................31
Compressor and drive control .............. 32
Typical control architecture .................................. 32
Oil injection control ................................................. 32
Compressor start and stop, speed control ...... 33
Short cycle protection............................................. 34
Drive alarm .................................................................. 35
Stop compressor in case of
safeties (LP, HP, DGT) ................................................ 35
4 Way valve control and defrost logic ............... 36
Unit remotely controlled ........................................ 36
Superheat management ........................ 37
Oil superheat measurement
during qualification ...................................................37
Test and components required
per application .......................................................... 38
Liquid floodback and defrost test....................... 38
Expansion valve ......................................................... 39
Selection of expansion valve ................................ 39
Adjustment of exv control parameters ............ 40
Location and installation of bulb (TXV)
or pressure and temperature sensor (EXV) ......41
Suction accumulator .................................................41
Oil return management ......................... 42
Test and components required
per application ............................................................42
Oil return test ...............................................................42
Piping recommendations to ensure
oil return ....................................................................... 43
Oil boost ....................................................................... 44
Oil separator................................................................46
Prevent off cycle migration ................... 47
Compressor charge limit .........................................47
Test and components required
per application ...........................................................47
Test and components required
per application ...........................................................47
Surface sump heater ................................................ 48
Surface sump heater control logic ..................... 48
Non return valve ........................................................ 48
Liquid line solenoid valve ...................................... 49
Pump down cycle ..................................................... 49
Operating envelope ............................... 50
Compressor envelope and pressure settings . 50
Protection and control of envelope ....................51
High pressure switch ............................................... 53
Operating envelope ................................................. 54
Low pressure switch ................................................. 54
Discharge gas thermostat ..................................... 54
MOP (Max Operating Pressure Control) ...........55
Sound and vibrations management ..... 56
Sound level .................................................................. 56
Vibrations ..................................................................... 56
Gas pulsation .............................................................. 56
Compressor mechanical installation .... 57
Grommets .................................................................... 57
Max inclination........................................................... 57
Drive installation ....................................58
Direct and indirect exposure of drive
to water ........................................................................ 58
Dust Exposure ............................................................ 58
Mechanical Mounting ............................................. 58
Drive ambient temperature ...................................59
EMC ................................................................................ 60
EMC best practices ................................................... 60
EMC correct installation of an frequency
drive CDS303 ............................................................... 60
INTEGRATION INTO SYSTEMS .............. 61
Assembly line procedure ....................... 61
Reduce moisture in the system ............................61
Requirements ..............................................................61
Solutions........................................................................61
Compressor storage ..................................................61
Compressor holding charge ..................................61
Handling .......................................................................61
Piping assembly ......................................................... 62
System pressure test and leak detection ......... 62
Vacuum evacuation and moisture removal ... 63
Refrigerant charging ................................................ 63
Dielectric strength and insulation
resistance tests ........................................................... 63
Commissioning ....................................... 64
Preliminary check ......................................................64
Initial start-up ............................................................. 64
System monitoring ...................................................64
Oil level checking and top-up .............................. 64
Troubleshooting ..................................... 65
Dismantal and disposal ......................... 68
Packaging ............................................... 69
Ordering codes ....................................... 70
Accessories .............................................. 73
3AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
General Information
Danfoss scroll compressors are designed and
manufactured with state of the art technology
and follow European and US regulations. There
is an added emphasis placed on safety and
reliability. Critical instructions are highlighted
with the following icons:
This icon indicates instructions to avoid
safety risk.
This icon indicates instructions to avoid
reliability risk.
The purpose of this guideline is informational,
with the intent to educate customers as to how
the compressors should properly function.
If you need any additional assistance, please
contact Danfoss Technichal Support. In any case,
Danfoss manufacturing accepts no liability as a
result of misuse or improper integration of the
compressor unit.
R
4 AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
Features
Patented oil injection control system:
1. Ensures optimal efficiency at low speed
by improving scroll set sealing.
2. Optimizes the oil circulation.
Intermediate discharge
valves(IDVs) increase part
load efficiency
Lead free polymer bearing
with excellent performance
under diverse loads and
speeds
Permanent magnet motor
with high efficiency at all
speeds
Oil strainer controls the
risk of system debris in
the oil injection circuit
Gearotor oil pump
ensures low speed
bearing lubrication
5AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
Compressor model designation
Compressor
nomenclature
Frequency converter
nomenclature
ANAGC117ZHV
Variable speed
Family
VZH scroll
Lubricant
POE lubricant, R410A
refrigerant
Swept volume
in cm³/rev
Design pressure ratio
C: with IDV
Evolution index
Motor protection type
N: no internal motor protection
(protection by drive)
Equipement version
A: brazed connections, single version
D: brazed connections, unified version
Motor voltage code to CDS303 *
G: 380-480V/3~/50 & 60Hz
H: 525-600V/3~/50&60Hz
J: 200-240V/3~/50 & 60Hz
* main supply voltage to frequency converter
Oil sight glass Oil level switch
Single version Threaded None
Unified version Threaded Threaded
H2E20T4P15K303CDS
Dedicated compressor
drive for VZH/VSH scroll
Serie 303
High overload
output power
in kW
Main supply voltage
T2: 200-240V/3 ph/50-60 Hz
T4: 380-480V/3 ph/50-60 Hz
T6: 525-600V/3 ph/50-60 Hz
RFI class
Enclosure protection
IP rating
Note:
High overload output power: output power @160% Torque
6 AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
Technical specifications
Compressor can be sized on peak load, for best
applied cost, or optimal efficiency. For optimal
efficiency, see our performance details in
Coolselector software.
Compressor size
Different frequency converter variants are
available according to:
1. Mains supply voltage
2. IP class (CDS303 drives are available in IP20 or
IP55 housings)
3. RFI (Radio Frequency Interference) class H2/H3
or HX
4. Printed Circuit Board (PCB) coated or not
coated.
When the compressor size and mains voltage
have been defined in the above selection criteria,
the code number tables from the “Ordering
information and packaging” section provides the
appropriate frequency converter sizes and up
to eight corresponding code numbers for each
compressor model.
Note this compressor is equipped with
a four poles electrical motor so the applied
frequency from the inverter will be 50 Hz for
25 rps (1500 rpm) up to 200 Hz for 100 rps
(6000 rpm).
Please refer to the table below
Frequency converter
variants
Compressor and
frequency converter
combinations
min max
Compressor speed
rps 25 100
rpm 1500 6000
Drive output frequency Hz 50 200
7AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
Technical specifications
Compressor
specifications
Frequency converter
specifications
Mains supply voltage
T2: 200 - 240 V ±10% (3-phase)
T4: 380 - 480 V ±10% (3-phase)
T6: 525 - 600V ±10% (3-phase)
Supply frequency 50 / 60 Hz
Output voltage 0 - 100 % of supply voltage
Inputs 6 digital (0-24V), 2 analog (0/±10V or 4-20mA, scalable)
Programmable outputs 2 digital (0-24V), 1 analog (0/4-20mA), 2 relay
Protection functions Over-current protection, low / high current handling
Compressor functions Motor protection, compressor ramp up/down control
Compressor
model
Swept volume
Displacement
Oil charge Net weight
25 rps 50 rps 60 rps 100 rps
cm³/rev cu.in/rev m³/h cu.ft/h m³/h cu.ft/h m³/h cu.ft/h m³/h cu.ft/h dm³ oz kg lbs
VZH088 88.4 5.39 7.7 272 15.4 544 18.6 657 30.8 1088 3.8 128 55 121
VZH117 116.9 7.13 10.1 357 20.3 717 24.6 869 40.6 1434 4.1 139 61 134
VZH170 170.2 10.39 14.8 523 29.6 1045 35.7 1261 54.2 1914 7.7 260 112 247
Oil injection An oil injection system is integrated into the VZH
compressors for improved sealing of the scroll
pockets during compression thus improving
its isotropic efficiency while also controlling
the amount of oil circulated into the system (oil
circulation ratio).
This system is controlled through the frequency
converter and preconfigured on relay_1.
The oil injection is ON at low speed and OFF at
high speed. The preset speed values are shown
on following table
Internally, the solenoid valve is bypassing the oil
injection
Oil injection is ENABLED when solenoid valve
coil IS NOT power supplied (Below oil injection
speed)
Oil injection is DISABLED when solenoid valve
coil IS power supplied (Above oil injection speed)
The compressors are delivered without the coil.
They are available in 208-240Vac, 110-120Vac or
24Vac and the ordering code numbers are in the
ordering information section.
Compressor model Oil injection below
VZH088 65rps 3900rpm
VZH117 55rps 3300rpm
VZH170 45rps 2700rpm
8 AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
Technical specifications
OIL level sensor A TEKLAB LC-XN optical-electrical level sensor
is fixed on the inverter compressor. The oil level
sensor prism is fixed on the compressor, the
electrical part is ordered by accessory kit. The oil
level sensor monitors the compressor oil level
and sends oil level signal to an external relay or
digital input of unit controller. A 5±2 seconds
delay is recommended to mitigate oil level
fluctuationand avoid false alarms.
- Lack of oil: Circuit between 2 and 3 will be
opened internally, there will be no current
flowing through load or coil of external relay,
relay is open.
- Enough oil: Circuit between 2 and 3 will be
closed internally, there will be current flowing
through load or coil of external relay, relay is
close.
Note: For 24VDC, output voltage in case of lack
of oil is >13V DC and not 0V
For customers who needs UL certificates, please
order 24V AC/DC sensor.
24VDC MODEL
230VAC MODEL
24VAC MODEL
24VDC MODEL
230VAC MODEL
24VAC MODEL
24VDC MODEL
230VAC MODEL
24VAC MODEL
Oil level sensor is a special component which
assembles on variable speed compressor. It is
provided in oil level sensor accessory kit.
VZH088 VZH117 VZH170
9AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
VZH088-G/H single version (with oil sight glass)
ØD
H3
H1
H5
L1
L2
L3
L4
H2
H4
Dimensions
15 mm
(0.59 inch)
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut
Ø 33 mm
(1.30 inch) hole
T2
T1
T3
Power supply
GrommetElectrical box
Version
Compressor
model
D H1 H2 H3 H4 H5 L1 L2 L3 L4
Outline
drawing
number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
Single VZH088-G/H 220.8 8.69 234.6 9.23 451.2 17.76 484.8 19.08 93.8 3.69 93.8 3.69 230 9.05 230 9.05 190.5 7.5 180.7 7.11 8560025
1
10 AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
2
Version
Compressor
model
D H1 H2 H3 H4 H5 L1 L2 L3 L4
Outline
drawing
number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
Unified VZH088-G/H 220.8 8.69 234.6 9.23 451.2 17.76 484.8 19.08 74.8 2.94 93.8 3.69 230 9.05 230 9.05 190.5 7.5 180.7 7.11 8560097
VZH088 -G/H unified version (with oil sight glass and oil level sensor)
ØD
H3
L1
L2
L3
L4
H4
H5
H2
H1
15 mm
(0.59 inch)
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut
Ø 33 mm
(1.30 inch) hole
T2
T1
T3
Power supply
GrommetElectrical box
Dimensions
Oil sight glass
11AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
Dimensions
VZH088-J single version (with oil sight glass)
L1
L4
L3
L2
H5
H2
ØD
H1
H3
H4
15 mm
(0.59 inch)
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut
Ø 40.5 mm
(1.59 inch) hole
Ø 16.5 mm
(0.65 inch)
knockout
Power supply
T2
T1
T3
GrommetElectrical box
Version
Compressor
model
D H1 H2 H3 H4 H5 L1 L2 L3 L4
Outline
drawing
number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
Single VZH088-J 220.8 8.69 234.6 9.23 451.2 17.76 484.8 19.08 93.8 3.69 93.8 3.69 230 9.05 230 9.05 190.5 7.5 200.4 7.81 8560030
3
12 AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
4
Version
Compressor
model
D H1 H2 H3 H4 H5 L1 L2 L3 L4
Outline
drawing
number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
Unified VZH088-J 220.8 8.69 234.6 9.23 451.2 17.76 484.8 19.08 74.8 2.94 93.8 3.69 230 9.05 230 9.05 190.5 7.5 200.4 7.81 8560098
VZH088 -J unified version (with oil sight glass and oil level sensor)
ØD
H3
H4
H1
H2
H5
L1
L2
L4
L3
Dimensions
15 mm
(0.59 inch)
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut
Ø 40.5 mm
(1.59 inch) hole
Ø 16.5 mm
(0.65 inch)
knockout
Power supply
T2
T1
T3
GrommetElectrical box
13AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
Dimensions
VZH117-G/H single version (with oil sigh glass)
H2
H1
H3
ØD
H5
L1
L2
L4
L3
H4
15 mm
(0.59 inch)
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut
Ø 33 mm
(1.30 inch) hole
T2
T1
T3
Power supply
GrommetElectrical box
5
Version
Compressor
model
D H1 H2 H3 H4 H5 L1 L2 L3 L4
Outline
drawing
number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
Single VZH117- G/H 220.8 8.69 276.9 10.92 507.9 20.02 541.6 21.34 100 3.96 100 3.96 230 9.05 230 9.05 190.5 7.5 180.7 7.13 8560026
14 AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
6
VZH117-G/H unified version (with oil sight glass and oil level sensor)
ØD
H3
H4
H5
H1
H2
L1
L2
L3
L4
Dimensions
15 mm
(0.59 inch)
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut
Ø 33 mm
(1.30 inch) hole
T2
T1
T3
Power supply
GrommetElectrical box
Version
Compressor
model
D H1 H2 H3 H4 H5 L1 L2 L3 L4
Outline
drawing
number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
Unified V ZH117-G/H 220.8 8.69 276.9 10.92 507.9 20.02 541.6 21.34 72 2.86 100 3.96 230 9.05 230 9.05 190.5 7.5 180.7 7.13 8560099
15AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
Dimensions
VZH117-J single version (with oil sight glass)
L1
L2
L3
ØD
Ø243
H3
H1
H5
L4
H2
H4
15 mm
(0.59 inch)
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut
Ø 40.5 mm
(1.59 inch) hole
Ø 16.5 mm
(0.65 inch)
knockout
Power supply
T2
T1
T3
GrommetElectrical box
7
Version
Compressor
model
D H1 H2 H3 H4 H5 L1 L2 L3 L4
Outline
drawing
number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
Single VZH117-J 220.8 8.69 276.9 10.92 507.9 20.02 541.6 21.34 100 3.96 100 3.96 230 9.05 230 9.05 190.5 7.5 200.4 7.87 8560031
16 AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
8
VZH117-J unified version (with oil sight glass and oil level sensor)
ØD
H3
L1
L2
L3
L4
H4
H5
H1
H2
Dimensions
Version
Compressor
model
D H1 H2 H3 H4 H5 L1 L2 L3 L4
Outline
drawing
number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
Unified VZH117-J 220.8 8.69 276.9 10.92 507.9 20.02 541.6 21.34 72 2.86 100 3.96 230 9.05 230 9.05 190.5 7.5 200.4 7.87 8560100
15 mm
(0.59 inch)
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut
Ø 40.5 mm
(1.59 inch) hole
Ø 16.5 mm
(0.65 inch)
knockout
Power supply
T2
T1
T3
GrommetElectrical box
17AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
Dimensions
VZH170-G/H single version (with oil sight glass)
ØD
H2
H1
H5
H4
L1
L4
L2
L3
H3
HM 8 bolt
Lock washer
Flat washer
Steel mounting sleeve
Rubber grommet
Nut
28 mm
(1.10 inch)
Compressor
base plate
Cover holding screw (x2) - Torque: 2.2 Nm
Faston 1/4" tabs
Terminal box
Power supply
Sump heater
Ø 40.5 mm
(1.59 inch) hole
Ø 50.5 mm
(1.99 inch) knockout
T1
T2
T3
T3
GrommetElectrical box
9
Version
Compressor
model
D H1 H2 H3 H4 H5 L1 L2 L3 L4
Outline
drawing
number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
Single VZH170-G/H 257 10.12 329 12.97 644.5 25.39 686.5 27.04 104.1 4.10 104.1 4.10 345 13.58 371 14.61 279.4 11 257 10.12 8551186
18 AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
10
VZH170-G/H unified version (with oil sight glass and oil level sensor)
ØD
H2
H5
L1
L4
L2
L3
H1
H3
H4
Dimensions
Version
Compressor
model
D H1 H2 H3 H4 H5 L1 L2 L3 L4
Outline
drawing
number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
Unified VZH170-G/H 257 10.12 329 12.97 644.5 25.39 686.5 27.04 83.6 3.3 120.5 4.74 345 13.58 371 14.61 279.4 11 257 10.12 8560095
HM 8 bolt
Lock washer
Flat washer
Steel mounting sleeve
Rubber grommet
Nut
28 mm
(1.10 inch)
Compressor
base plate
Cover holding screw (x2) - Torque: 2.2 Nm
Faston 1/4" tabs
Terminal box
Power supply
Sump heater
Ø 40.5 mm
(1.59 inch) hole
Ø 50.5 mm
(1.99 inch) knockout
T1
T2
T3
T3
GrommetElectrical box
19AB300034185311en-000101
GENERAL INFORMATIONPRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION
Dimensions
VZH170-J single version (with oil sight glass)
ØD
H1
H5
L1
L3
L2
L4
H4
H2
H3
HM 8 bolt
Lock washer
Flat washer
Steel mounting sleeve
Rubber grommet
Nut
28 mm
(1.10 inch)
Compressor
base plate
Ø 50.5 mm (1.99 inch) hole
Ø 63.5 mm (2.50 inch) knockout
T1
T2
T3
Ø 22.5 mm
(0.89 inch) knockout
Sump heater
GrommetElectrical box
11
Version
Compressor
model
D H1 H2 H3 H4 H5 L1 L2 L3 L4
Outline
drawing
number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
Single VZH170 -J 257 10.12 329 12.97 644.5 25.39 686.5 27.04 104.1 4.10 104.1 4.10 345 13.58 371 14.61 279.4 11 277 10.90 8551174
20 AB300034185311en-000101
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