Danfoss Inverter reciprocating compressors VTZ Application guide
Application guidelines
Inverter reciprocating
compressors
VTZ
R404A - R507 - R407C - R134a
http://cc.danfoss.com
Application Guidelines
Content
Inverter compressors ........................................................................................................................... 5
Speed control ................................................................................................................................................................................................5
Advantages of speed control .................................................................................................................................................................. 5
Danfoss VTZ compressors with CD frequency converters ........................................................................................................... 5
Compressor and frequency converter selection ................................................................................ 6
Compressor size ........................................................................................................................................................................................... 6
Frequency converter variants ................................................................................................................................................................. 6
Nomenclature and specications ........................................................................................................ 7
Compressor nomenclature ...................................................................................................................................................................... 7
Compressor specications ....................................................................................................................................................................... 7
Frequency converter nomenclature .....................................................................................................................................................7
Frequency converter general specications .....................................................................................................................................7
Operating conditions ........................................................................................................................... 8
Application envelope R404A/R507A .................................................................................................................................................... 8
Speed range R404A/R507A ......................................................................................................................................................................8
Application envelope R407C ................................................................................................................................................................... 9
Speed range R407C .................................................................................................................................................................................... 9
Application envelope R134a .................................................................................................................................................................10
Speed range R134a ...................................................................................................................................................................................10
High and low pressure protection.......................................................................................................................................................11
Low ambient temperature operation ................................................................................................................................................11
Electronic expansion valve ....................................................................................................................................................................11
Short cycle timer function ......................................................................................................................................................................12
Discharge gas temperature protection function ...........................................................................................................................12
Discharge gas thermostat ......................................................................................................................................................................12
Oil return management function ........................................................................................................................................................13
Approvals & certicates ..................................................................................................................... 14
Approvals and certicates ......................................................................................................................................................................14
Pressure equipment directive 2014/68/EU ......................................................................................................................................14
Low voltage directive 2014/35/EU ......................................................................................................................................................14
Machine directive 2014/30/EU .............................................................................................................................................................14
Internal free volume .................................................................................................................................................................................14
Technical specications ..................................................................................................................... 15
Dimensions ......................................................................................................................................... 21
VTZ038 / V TZ054 .......................................................................................................................................................................................21
VTZ086 / V TZ121 .......................................................................................................................................................................................22
VTZ171 / V TZ215 .......................................................................................................................................................................................23
Sight glass ....................................................................................................................................................................................................24
Schrader ........................................................................................................................................................................................................24
Suction & discharge connections ........................................................................................................................................................24
Frequency converter dimensions ........................................................................................................................................................24
Frequency converters Enclosures ........................................................................................................................................................27
Electrical data, connections and wiring ............................................................................................ 30
Compressor electrical specications ..................................................................................................................................................30
Wiring & EMC protection ........................................................................................................................................................................30
EMC correct installation of an IP20 frequency converter CD302 .............................................................................................31
Wiring diagram ...........................................................................................................................................................................................32
Fuses ...............................................................................................................................................................................................................33
Supply voltage ............................................................................................................................................................................................33
Wiring connections ...................................................................................................................................................................................34
Electrical connections ..............................................................................................................................................................................34
Soft-start control ........................................................................................................................................................................................35
Phase sequency and reverse rotation protection ..........................................................................................................................35
IP rating .........................................................................................................................................................................................................35
Motor protection .......................................................................................................................................................................................35
Voltage imbalance ....................................................................................................................................................................................35
Ambient temperature and altitude.....................................................................................................................................................35
3FRCC.PC.009.A7.02
Application Guidelines
Content
System design recommendations ..................................................................................................... 36
Piping design ..............................................................................................................................................................................................36
Suction lines ................................................................................................................................................................................................36
Discharge line .............................................................................................................................................................................................37
Filter driers ...................................................................................................................................................................................................37
Liquid refrigerant control and charge monitoring ........................................................................................................................37
O-cycle migration ...................................................................................................................................................................................37
Liquid oodback during operation .....................................................................................................................................................37
Liquid oodback at change over cycles in reversible heat pumps .........................................................................................38
Liquid oodback and zeotropic refrigerants ...................................................................................................................................38
Crankcase heater .......................................................................................................................................................................................38
Liquid line solenoid valve & pump-down ........................................................................................................................................38
Suction accumulator ................................................................................................................................................................................38
Vibration .......................................................................................................................................................................................................39
Evaporator ....................................................................................................................................................................................................39
Condenser ....................................................................................................................................................................................................39
Defrosting using reverse cycle..............................................................................................................................................................39
Oil circulation rate and oil level management ................................................................................................................................40
Installation .......................................................................................................................................... 41
System cleanliness ....................................................................................................................................................................................41
Compressor handling ..............................................................................................................................................................................41
Compressor mounting ............................................................................................................................................................................41
Compressor connection to system .....................................................................................................................................................41
System pressure test ................................................................................................................................................................................42
Leak detection ............................................................................................................................................................................................42
Vacuum pull-down moisture removal ...............................................................................................................................................42
Start-up ........................................................................................................................................................................................................43
Refrigerant charging ................................................................................................................................................................................43
Commissioning ..........................................................................................................................................................................................44
Oil level checking and top-up ...............................................................................................................................................................44
Suction gas superheat .............................................................................................................................................................................44
Programming ..............................................................................................................................................................................................44
Ordering information and packaging ............................................................................................... 45
Kit ordering and shipping ......................................................................................................................................................................45
Packaging .....................................................................................................................................................................................................45
Frequency converter single pack .........................................................................................................................................................45
Accessories .......................................................................................................................................... 48
Valves, adapters, connectors & gaskets for use on suction and discharge connections .................................................48
Crankcase heaters, soft starters, protection modules, thermostats & resistors ..................................................................49
Lubricant , acoustic hoods and spareparts ......................................................................................................................................49
Spare parts Frequency converter ........................................................................................................................................................50
4 FRCC.PC.009.A7.02
Application Guidelines
Inverter compressors
Speed control
Advantages of speed
control
The introduction of speed control for
refrigeration compressors is one of the major
developments towards the optimization of
refrigeration systems for the years to come. The
capability of controlling speed is leading to a
new approach in the design of refrigeration
systems based on average load. For periods of
Smaller compressors can be selected than
normally required with xed speed compressors.
Energy savings are realized because the
compressor speed is adapted to the actual
cooling demand. The compressor power
input is directly related to its speed. Further
improvements can be achieved by adjusting the
speed of other motors (fans, pumps, ...) to the
actual needs.
high cooling demand, the compressor speed can
be increased which results in a higher refrigerant
ow and thus higher cooling capacity. For
periods of lower cooling demand, compressor
speed can be decreased resulting in a lower
cooling capacity.
Cooling process optimization. By continuously
adapting the compressor speed to the actual
needs, a more precise cooling process control is
achieved.
Increased reliability. The number of on / o
cycles is drastically decreased resulting in a
reduction of mechanical and electrical stresses
and wear, consequently improving the overall
system reliability.
Danfoss VTZ compressors
with CD frequency
converters
Reduction of inrush current at start-up. The
starting current is reduced to a value close to the
nominal current.
Selecting the right frequency converter for a
inverter refrigeration compressor can be very
complex. Several parameters and characteristics
have to be taken into account such as voltage,
current, torque, heat generation, ramp-up, IPrate, EMC and RFI.
For that reason, Danfoss has created pre-dened
sets of VTZ compressors with dedicated CD302
frequency converters. All above mentioned
Reduced sound nuisance. At night, when cooling
demand is usually low, the compressor speed
can be decreased, contributing to lower system
operating sound levels.
parameters have been taken into account during
the design and test phase already. This is your
guarantee that the compressor and frequency
converter are fully compatible.
Of course these sets also simplify your selection
considerably. And during commissioning the
pre-programmed factory settings of the CD302
will save you valuable time.
5FRCC.PC.009.A7.02
Application Guidelines
Compressor and frequency converter selection
Compressor size Inverter technology oers more exibility
in compressor selection than xed speed
compressors. Selection of the right inverter
compressor size can be done by dierent
methods:
1. Maximum cooling capacity: Select a
compressor size which achieves the peak load
system cooling capacity demand at its maximum
speed.
2. Nominal cooling capacity: Select a compressor
size which achieves the nominal system cooling
capacity at a rotational speed of 3600 – 4500 rpm
(60-75 Hz).
Frequency converter
variants
Dierent frequency converter variants are
available according to:
1. IP class (CD302 frequency converters are
available in IP20 / IP21 and IP55).
2. Local Control Panel (LCP) provided or not.
3. Best Seasonal Eciency Ratio: Select a
compressor size which achieves the minimum
system cooling demand at its minimum speed.
Ensure that the compressor is able to cover the
peak load system cooling capacity. This selection
makes the compressor to run for a maximum of
time at part load where the system eciency is
highest.
Simplied compressor performance tables can
be found on following pages. For more complete
performance data, please refer to the data sheets
or to the calculation program.
6 FRCC.PC.009.A7.02
Application Guidelines
Compressor
nomenclature
Nomenclature and specications
Motor voltage code
(see table Supply voltage)
Compressor specications
Frequency converter
nomenclature
Compressor drive
Series 302
Output power 7.5 kW
Frequency converter
general specications
Compressor
model
VTZ038 38 .12 4.57 6.63 12 .12 1 0.95 21
VTZ054 53.86 6.46 9.37 17.13 1 0.95 24
VTZ086 85.64 8.74 14.90 27. 23 2 1. 80 35
VTZ121 120.9 4 12. 34 21. 04 36.28 2 1.80 40
VTZ171 171. 26 17.47 29.80 54.46 4 3.90 60
VTZ 215 215.4 4 21.97 37. 49 68.51 4 3.90 64
Swept
volume
(cm³/rev)
Min speed
(m³/h)
Displacement
50 Hz
(m³/h)
Max speed
(m³/h)
Cyl. nbr
Oil charge
(dm³)
Net Weight
(kg)
CD 302 P7K5 T4 P21 H1
RFI class
Enclosure protection
Mains supply voltage code
Mains supply voltage
Supply frequency 50 / 60 Hz
Output voltage 0 - 100 % of supply voltage
Inputs 6 digital (0 - 24 V), 2 analogue (-10 / +10 V or 0 / 4 V -20 mA, scalable)
Programmable outputs 2 digital (0- 24 V), 1 analogue, 2 relay
Protection functions
Control functions Pump-down function, Anti short-cycle function, Oil return
Communication Modbus
T2: 200 - 240 V +/-10% (3-phase)
T4: 380 - 480 V +/-10% (3-phase)
Over-current protection, over-modulation handling, low / high
current handling
management
7FRCC.PC.009.A7.02
Application Guidelines
Operating conditions
Application envelope R404A/R507A
SH: 10K
SH: 30K
Max. 5100 rpm for VTZ121
and max. 4800 rpm above 0°C
Speed range R404A/R507A
1 cylinder
2 cylinders
4 cylinders
Speed low limit Speed high limit
VTZ038 2100 rpm 5400 rpm
VTZ054 2100 rpm 5400 rpm
VTZ086 1800 rpm 5400 rpm
VTZ121 1800 rpm
VTZ171 18 00 rpm 5400 rpm
VTZ 215 1800 rpm 5400 rpm
Tevap<0 °C: 5100 rpm
Tevap>0°C: 4800 rpm
8 FRCC.PC.009.A7.02
Application Guidelines
Application envelope
R407C
Operating conditions
SH: 10K
SH: 30K
Speed range R407C
1 cylinder
2 cylinders
4 cylinders
Speed low limit Speed high limit
VTZ038 2100 rpm 5400 rpm
VTZ054 2100 rpm 5400 rpm
VTZ086 1800 rpm 5400 rpm
VTZ121 1800 rpm 510 0 rpm
VTZ171 18 00 rpm 5400 rpm
VTZ 215 1800 rpm 5400 rpm
9FRCC.PC.009.A7.02
52
Application Guidelines
Application envelope
R134a
75
70
65
60
55
50
Condensing temperature (°C)
45
40
Operating conditions
SH: 10K
SH: 30K
35
30
-20-15 -10-50 5101
Speed range R134a
1 cylinder
2 cylinders
4 cylinders
0
Evaporating temperature (°C)
Speed low limit Speed high limit
VTZ038 2100 rpm 5400 rpm
VTZ054 2100 rpm 5400 rpm
VTZ086 1800 rpm 5400 rpm
VTZ121 1800 rpm 510 0 rpm
VTZ171 18 00 rpm 5400 rpm
VTZ 215 1800 rpm 5400 rpm
10 FRCC.PC.009.A7.02
Application Guidelines
Operating conditions
High and low pressure
protection
Low ambient
temperature operation
A high pressure safety switch is required to stop
the compressor, should the discharge pressure
exceed the values shown in the table below. The
high pressure switch can be set to lower values
depending on the application and ambient
conditions. The HP switch must either be in a
Working pressure range high side bar (g) 7.8 - 29.4 7.9 - 20.2 9.9 - 27.7
Working pressure range low side bar (g) 1.4 - 6.6 0.6 - 3.9 1 - 6.1
A low pressure safety switch is recommended to
avoid compressor operation at too lower suction
pressures.
At low ambient temperatures, the condensing
temperature and condensing pressure in air
cooled condensers will decrease.
This low pressure may be insucient to supply
enough liquid refrigerant to the evaporator. As a
result the evaporator temperature will strongly
decrease with the risk of frosting. At compressor
start-up, the compressor can pull a deep vacuum
and it can be switched o by the low pressure
protection. Depending on the low pressure
switch setting and delay timer, short cycling can
occur. To avoid these problems, several solutions
are possible, based on reducing condenser
capacity:
• Reduce air ow to condensers.
• Indoor location of condensers
• Liquid ooding of condensers (note: this
solution requires extra refrigerant charge,
lockout circuit, or be a manual reset device to
prevent compressor cycling around the high
pressure limit. When a discharge valve is used,
the HP switch must be connected to the service
valve gauge port, which cannot be isolated.
R407C R134a R404A
which can introduce other problems. A nonreturn valve in the discharge line is required
and special care should be taken when
designing the discharge line.).
Other problems can also occur when the
compressor is operating at low ambient
temperature. During shut down periods, liquid
refrigerant can migrate to a cold compressor.
For such conditions a belt-type crankcase heater
is strongly recommended.
Note that with 100% suction gas cooled motors,
Maneurop® compressors can be externally
insulated.
Refer to section «Liquid refrigerant migration &
charge limits» for more details.
Electronic expansion
valve
With variable capacity systems, an electronic
expansion valve (EXV) is one of the better
solutions to handle refrigerant mass ow
variations. Ramp-up and ramp-down settings,
of both EXV and compressor, must be done with
great care.
Ramp-up of the EXV must be shorter than
the ramp-up of the compressor, to avoid any
low pressure operation on suction side of the
compressor. The EXV can also be opened, up
to a certain degree, before the start up of the
compressor.
Ramp-down of the EXV must be longer than the
ramp-down of the compressor, also to avoid low
pressure operation (except with pump-down).
The EXV should be closed, and remain closed,
when the compressor is o, to avoid any liquid
refrigerant entering the compressor.
11FRCC.PC.009.A7.02
Application Guidelines
Operating conditions
Short cycle timer function
Discharge gas
temperature protection
function
Short cycle control is directly provided by the
CD302 frequency converter, when parameter
28.0* is enabled.
The function is factory set to enabled, with
minimum running time 12 seconds and interval
between starts 300 seconds.
A discharge temperature monitor function
can be enabled in the frequency converter. All
settings are available in parameter list 28.2*.
They are factory preset as follow:
• 28.20: [0] none - temperature source (sensor
input)
• 28.21: [60] °C - temperature unit
• 28.24: 130 - warning level
• 28.25: [1] decrease cooling - warning action
• 28.26: 145 - emergency level
• 28.27: is the actual discharge temperature
measured by the sensor.
Discharge gas thermostat Discharge gas temperature (DGT) protection
is required if the high and low pressure switch
settings do not protect the compressor against
operations beyond its specic application
envelope.
Short cycle settings are accessible in parameter
28.0* list, in the “compressor functions” menu.
To activate the discharge temperature monitor
function, with the factory setting, the only
modication required is to connect the sensor
to Analog Input 54 (4.20 mA) between 13 and
54, and set the parameter 28.20 to “[2] Analog
input 54”. When the warning level is reached,
“decrease cooling” action starts by decreasing
the compressor speed by steps of 600 rpm (10
Hz) every 3 minutes until the temperature, either
drops below the level, programmed in parameter
28.24 (warning level) or exceed the level
programmed in parameter 28.26 (emergency
level). When the emergency level is reached,
the compressor is stopped and the frequency
converter shows an “alarm”.
The compressor must not be allowed to cycle
on the discharge gas thermostat. Continuous
operations beyond the compressor’s operating
range will cause serious damage to the
compressor!
The discharge gas temperature must not exceed
135°C.
A discharge gas temperature protection device
must be installed on all heat pumps. In reversible
air-to-air and air-to-water heat pumps the
discharge temperature must be monitored
during development test by the equipment
manufacturer.
Discharge line
A DGT accessory is available from Danfoss: refer
to accessories pages at the end of this document.
The discharge gas thermostat accessory kit (code
no.7750009) includes all components required
for installation, as shown below. The thermostat
must be attached to the discharge line within
150 mm from the compressor discharge port and
must be thermally insulated and tightly xed on
the pipe.
Thermostat
Insulation
12 FRCC.PC.009.A7.02
Bracket
Application Guidelines
Operating conditions
Oil return management
function
Insucient oil level can be the result of oil
depositing itself in pipes and heat exchangers.
The oil deposit can be returned to the crankcase,
by increasing velocity for short period, at regular
time intervals or when velocity is too low to
ensure adequate oil returns.
With oil return management these two oil return
mechanisms can be programmed in the CD302.
With oil return management function enabled,
the CD302 performs oil return by boosting the
compressor speed to 4200 rpm (70 Hz) for a
selectable duration as programmed in parameter
28.13. The boosts are performed at xed time
intervals (as programmed in parameter 28.12)
or if the compressor speed has been less than
3000rpm (50 Hz) for too long (as programmed in
28.11) which ever occurs rst. Thus the maximum
time between two consecutive oil return boosts
is programmed in 28.12.
13FRCC.PC.009.A7.02
Application Guidelines
Approvals & certicates
Approvals and
certicates
Pressure equipment
directive 2014/68/EU
Low voltage directive
2014/35/E U
VTZ Compressor with CD302 frequency
converter comply with the following approvals
Certicates are listed on the product datasheets:
http://www.danfoss.com/odsg
and certicates.
CE0062 or CE0038 (European Directive) All models
UL (Underwriters Laboratories) All models
EMC 2014/30/EU All models
Product VTZ038-054 VTZ0 86-121-171-215-242
Fluids Group 2
PED Category I II
Evaluation module no scope D1
TS - Service temperature LP 50°C > Ts > -35°C
PS - Service pressure LP 22,6 bar(g)
Product VTZ038-215
Declaration of conformity Contact Danfoss
Machine directive
2014/30/EU
Internal free volume
Product VTZ038-215
Manufacturer’s declaration of
incorporation
Product Internal free volume at LP side (litre) High side (litre)
VTZ038-054 7.7 0.28
VTZ086-121 16.5 0.63
VTZ171-215 32 1.20
Contact Danfoss
14 FRCC.PC.009.A7.02
Application Guidelines
To -30 -25 -20 -15 -10 -5 0 5
Tc Qo Pe Qo Pe Qo Pe Qo Pe Qo Pe Qo Pe Qo Pe Qo Pe
VTZ038
20 1 090 0.61 1 430 0.67 1 850 0.71 2 350 0.74 2 950 0.76 3 650 0.77 - - - 30 840 0.64 1 130 0.72 1 480 0.79 1 910 0.85 2 420 0.89 3 030 0.93 3 730 0.95 4 550 0.96
40 610 0.64 850 0.75 1 14 0 0.85 1 500 0.94 1 920 1.02 2 430 1.0 9 3 030 1.14 3 730 1.18
50 400 0.62 590 0 .76 830 0.90 1 11 0 1.02 1 450 1.14 1 860 1. 24 2 350 1.32 2 930 1.4 0
Min rpm
60 - - - - 530 0.92 750 1.08 1 010 1. 23 1 320 1.37 1 700 1.50 2 160 1.61
20 1 720 1.08 2 290 1.19 3 000 1.29 3 860 1.37 4 890 1.43 6 110 1.45 - - - 30 1 380 1.10 1 920 1.26 2 570 1.40 3 360 1.52 4 290 1.6 2 5 400 1.69 6 690 1.74 8 190 1.75
40 1 020 1.10 1 490 1.30 2 070 1.49 2 76 0 1.66 3 580 1.81 4 560 1.93 5 70 0 2.03 7 040 2.11
50 640 1.0 4 1 040 1.29 1 520 1.52 2 10 0 1.75 2 800 1.95 3 630 2.14 4 610 2.30 5 760 2.44
3600 rpm
60 - - - - 960 1.47 1 410 1.75 1 960 2.02 2 620 2.27 3 420 2.50 4 370 2.70
20 2 200 1.75 3 080 2.01 4 160 2.22 5 450 2.39 6 990 2.51 8 790 2.57 - - - 30 1 680 1.74 2 480 2.08 3 460 2.38 4 640 2.64 6 030 2.86 7 650 3.03 9 550 3.15 11 730 3.22
40 1 14 0 1. 60 1 860 2.03 2 710 2.43 3 74 0 2.78 4 960 3.10 6 400 3.37 8 070 3.60 10 010 3.78
50 630 1.34 1 230 1.85 1 940 2.34 2 800 2.79 3 830 3.21 5 050 3.58 6 480 3.92 8 15 0 4.20
Max rpm
60 - - - - 1 190 2 .11 1 860 2.66 2 670 3.17 3 640 3.65 4 810 4.09 6 190 4.49
VTZ054
VTZ086
VTZ121
20 1 480 0.88 1 970 0.97 2 590 1.05 3 370 1.11 4 310 1.16 5 450 1.18 - - - 30 1 18 0 0.94 1 600 1. 05 2 120 1.16 2 770 1.26 3 570 1.34 4 540 1. 40 5 700 1.45 7 060 1.48
40 920 0.96 1 260 1.11 1 690 1. 25 2 220 1. 38 2 890 1.50 3 700 1.6 0 4 670 1. 69 5 820 1. 76
50 680 0.96 950 1.14 1 290 1.32 1 710 1.49 2 240 1.64 2 890 1. 79 3 680 1.92 4 640 2.03
Min rpm
60 - - - - 900 1. 37 1 220 1. 57 1 610 1.7 7 2 110 1. 96 2 730 2.13 3 490 2.29
20 2 520 1.58 3 300 1.75 4 270 1.91 5 450 2.05 6 870 2.16 8 550 2.26 - - - 30 2 120 1.67 2 840 1.88 3 720 2.09 4 790 2. 28 6 070
40 1 660 1.69 2 300 1.96 3 070 2.22 4 010 2.46 5 130 2.69 6 460 2.90 8 030 3.09 9 870 3. 25
50 1 19 0 1.64 1 720 1.97 2 360 2.29 3 130 2.60 4 070 2.89 5 19 0 3.17 6 520 3.42 8 090 3.66
3600 rpm
60 - - - - 1 590 2.29 2 180 2.66 2 910 3.03 3 790 3.37 4 870 3.71 6 15 0 4.02
20 3 740 2.45 4 870 2.76 6 250 3.06 7 910 3.34 9 880 3 .61 12 210 3.84 - - - 30 2 970 2.47 4 010 2.84 5 270 3 .21 6 780 3.57 8 580 3.92 10 710 4.26 13 190 4.58 16 070 4.87
40 2 170 2.43 3 090 2.84 4 190 3.28 5 520 3.72 7 110 4 .15 9 000 4.59 11 210 5.02 13 80 0 5.43
50 1 410 2.30 2 150 2.77 3 070 3.26 4 170 3.77 5 510 4.29 7 120 4.82 9 040 5. 35 11 29 0 5.87
Max rpm
60 - - - - 1 950 3.15 2 80 0 3.73 3 850 4. 32 5 150 4.94 6 720 5.56 8 60 0 6.19
20 1 840 1.18 2 580 1.31 3 520 1.42 4 660 1.49 6 030 1.5 4 7 650 1.5 6 - - - 30 1 340 1.21 1 950 1.4 0 2 720 1.56 3 660 1. 69 4 800 1.80 6 16 0 1. 87 7 750 1.92 9 600 1.94
40 930 1.16 1 420 1.42 2 040 1.6 6 2 800 1.85 3 720 2.02 4 830 2.16 6 140 2. 27 7 670 2.35
50 580 1. 04 980 1.38 1 460 1.69 2 050 1.97 2 770 2.21 3 650 2.42 4 690 2.60 5 920 2.75
Min rpm
60 - - - - 950 1.67 1 390 2.03 1 930 2.36 2 580 2.65 3 380 2.91 4 330 3.14
20 4 290 2.46 5 790 2.74 7 620 2.97 9 820 3.15 12 430 3.29 15 4 90 3.38 - - - 30 3 260 2.53 4 590 2.91 6 200 3.25 8 14 0 3.54 10 440 3.78 13 140 3.96 16 29 0 4.10 19 910 4 .18
40 2 290 2.46 3 430 2.97 4 810 3.42 6 470 3.82 8 440 4.17 10 770 4.47 13 500 4.71 16 65 0 4.91
50 1 400 2.24 2 340 2.87 3 460 3.45 4 820 3.98 6 450 4.46 8 39 0 4.88 10 6 80 5.25 13 3 60 5.56
3600 rpm
60 - - - - 2 180 3.34 3 230 4.00 4 500 4.62 6 040 5.18 7 870 5.68 10 050 6.12
20 6 16 0 3.89 8 310 4.34 10 950 4. 74 14 130 5.09 17 8 90 5.40 22 290 5.66 - - - 30 4 960 4.00 6 910 4.59 9 290 5.13 12 13 0 5. 61 15 490 6.05 19 410 6.44 23 940 6.78 29 120 7. 07
40 3 640 3.91 5 360 4.66 7 440 5.35 9 920 5.99 12 830 6.58 16 2 50 7.11 20 190 7. 60 24 730 8.03
50 2 260 3.59 3 720 4.51 5 470 5.38 7 540 6.19 9 980 6.9 4 12 850 7.64 16 190 8.28 20 040 8.87
Max rpm
60 - - - - 3 420 5.16 5 060 6.15 6 990 7.08 9 280 7.9 6 11 9 70
20 2 750 1. 89 3 660 2.05 4 810 2.19 6 230 2.30 7 940 2. 39 9 980 2.46 - - - 30 2 280 2.03 3 11 0 2.25 4 130 2.43 5 390 2.60 6 900 2.74 8 710 2.85 10 84 0 2.95 13 3 20 3.02
40 1 770 2.10 2 480 2.38 3 360 2.64 4 430 2.86 5 730 3.06 7 280 3.24 9 12 0 3.39 11 28 0 3.51
50 1 230 2.08 1 810 2.44 2 520 2.77 3 390 3.07 4 450 3.35 5 730 3.59 7 250 3.81 9 060 4.01
Min rpm
60 - - - - 1 650 2.82 2 300 3.21 3 090 3.57 4 070 3.90 5 270 4.20 6 700 4.48
20 5 530 3.69 7 470 4.09 9 890 4.47 12 850 4.84 16 410 5. 21 20 620 5.56 - - - 30 4 500 3.88 6 220 4.35 8 360 4.82 10 9 90 5.26 14 150 5.70 17 90 0 6.12 22 300 6.54 27 410 6.96
40 3 530 3.99 4 980 4.56 6 800 5.11 9 040 5.64 11 76 0 6 .17 15 020 6.68 18 86 0 7.18 23 360 7. 68
50 2 630 4.00 3 770 4.68 5 230 5. 33 7 040 5.97 9 280 6.60 11 9 90 7. 21 15 2 30 7. 81 19 07 0 8 .41
3600 rpm
60 - - - - 3 660 5.4 8 5 010 6. 24 6 710 6.99 8 840 7.7 2 11 440 8.43 14 570 9.14
20 8 060 5.47 10 760 6.11 14 150 6.73 18 330 7. 32 23 400 7. 85 29 440 8.31 - - - 30 6 400 5.63 8 760 6.38 11 7 10 7. 14 15 340 7.9 0 19 750 8.64 25 040 9.34 31 310 9.99 36 440 9.82
40 4 870 5.67 6 870 6.50 9 350 7.38 12 420 8.29 16 170 9.20 20 690 10 .10 26 100 10 .99 30 720 10.95
50 3 450 5.64 5 070 6.53 7 080 7. 49 9 560 8. 51 12 6 30 9.57 16 370 10.65 20 890 11.74 24 920 11 .89
Max rpm
60 - - - - 4 860 7.5 2 6 750 8.62 9 12 0 9.79 12 070 11. 02 15 690 12 .29 19 050 12.65
Technical specications
R404APerformance data
2.44 7 590 2.59 9 380 2.72 11 4 50 2.82
8.78 15 11 0 9.55
15FRCC.PC.009.A7.02
Application Guidelines
To -30 -25 -20 -15 -10 -5 0 5
Tc Qo Pe Qo Pe Qo Pe Qo Pe Qo Pe Qo Pe Qo Pe Qo Pe
Technical specications
VTZ171
20 3 900 2.31 5 360 2.59 7 180 2.83 9 400 3.04 12 050 3.20 15 160 3.31 - - - 30 2 920 2.32 4 150 2.65 5 680 2.96 7 550 3.24 9 790 3.47 12 4 50 3.67 15 5 40 3.82 19 120 3.91
40 2 090 2.31 3 090 2.72 4 340 3.11 5 870 3.47 7 720 3.81 9 910 4.10 12 5 00 4.36 15 50 0 4.57
50 1 380 2.23 2 170 2. 74 3 140 3.23 4 340 3.70 5 790 4.14 7 540 4.56 9 620 4.94 12 070 5.28
Min rpm
60 - - - - 2 070 3.24 2 940 3.84 4 010 4 .41 5 320 4.97 6 900 5.49 8 790 5.98
20 7 670 4.52 10 390 5 .12 13 830 5.66 18 06 0 6.16 23 160 6.61 29 220 7. 03 - - - 30 6 220 4.73 8 660 5.49 11 70 0 6.16 15 4 00 6.77 19 8 70 7. 32 2 5 170 7. 82 31 38 0 8.28 38 600 8.71
40 4 700 4.78 6 840 5. 74 9 450 6. 61 12 6 20 7. 39 16 430 8.08 20 960 8.71 26 280 9.28 32 49 0 9.80
50 3 110 4.54 4 930 5.76 7 10 0 6.87 9 720 7. 87 12 8 60 8.77 16 600 9.58 21 020 10. 31 26 200 10. 98
3600 rpm
60 - - - - 4 660 6. 81 6 710 8.08 9 160 9.24 12 090 10 .29 15 590 11. 24 19 740 12 .10
20 11 310 7.31 15 89 0 8.35 21 4 60 9.26 28 030 10. 05 35 630 10.73 44 290 11. 32 - - - 30 8 920 7. 54 12 9 90 8.95 17 920 10.20 23 720 11. 32 30 410 12.32 38 030 13 .21 46 580 14.03 56 090 14.77
40 6 400 7. 24 9 960 9.03 14 240 10 .66 19 2 60 12 .14 25 040 13. 50 31 610 14 .73 38 980 15. 87 47 19 0 16.93
50 3 750 6.29 6 79 0 8.51 10 420 10. 55 14 66 0 12.4 3 19 520 14.17 25 0 40 15.78 31 2 30 17. 28 38 110 18. 69
Max rpm
60 - - - - 6 470 9.78 9 910 12 .09 13 8 50 14. 25 18 310 16.27 23 310 18.16 28 870 19.95
VT Z215
20 4 790 3.00 6 690 3 .31 9 050 3.58 11 94 0 3.79 15 4 00 3.95 19 49 0 4.04 - - - 30 3 700 3 .18 5 330 3.60 7 350 3.97 9 820 4.30 12 8 00 4.57 16 320 4.79 20 450 4.94 25 240 5.02
40 2 690 3.24 4 070 3.78 5 76 0 4.28 7 820 4. 74 10 310 5.15 13 2 70 5. 51 16 750 5.80 20 820 6.03
50 1 750 3 .15 2 880 3.83 4 250 4.48 5 910 5.08 7 910 5.65 10 320 6 .16 13 170 6.62 16 530 7.0 2
Min rpm
60 - - - - 2 800 4.52 4 060 5.30 5 600 6.03 7 450 6.72 9 670 7. 36 12 330 7.95
20 9 250 5.45 12 7 50 6.26 17 190 7.0 1 22 690 7. 68 29 370 8.27 37 360 8.76 - - - 30 7 600 5.86 10 700 6.85 14 570 7. 79 19 340 8.68 25 13 0
40 5 910 6.12 8 600 7. 28 11 9 00 8.41 15 9 40 9. 49 20 840 10. 53 26 720 11.4 9 33 700 12. 38 41 9 00 13 .16
50 4 130 6. 24 6 420 7. 55 9 16 0 8.85 12 470 10.13 16 470 11 .37 21 290 12 .56 27 050 13.6 8 33 880 14.72
3600 rpm
60 - - - - 6 270 9.13 8 850 10. 58 11 970 12.02 15 740 13.41 20 280 14. 76 25 730 16. 04
20 15 190 9.71 20 520 11.10 27 020 12. 40 34 830 13. 62 4 4 110 14.73 54 990 15.73 - - - 30 12 240 9.94 17 180 11.64 2 3 160 13. 30 30 300 14.9 0 38 760 16.44 4 8 670 17.91 60 180 19.3 0 73 430 20. 59
40 9 030 9.79 13 4 30 11.7 8 18 700 13.76 25 000 15.73 32 450 17. 67 41 210 19.58 51 430 21.4 4 63 230 23.24
50 5 820 9.21 9 480 11. 45 13 8 80 13.73 19 140 16.03 25 420 18.35 32 860 20.66 41 6 00 22.97 51 7 80 25.26
Max rpm
60 - - - - 8 910 13.17 12 97 0 15.77 17 900 18.43 23 830 21.13 30 910 23.85 39 290 26.60
9.49 32 060 10. 23 40 260 10.86 49 840 11. 38
R404APerformance data
To: Evaporating temperature in °C Tc: Condensing temperature in °C Qo: Cooling capacity in W Pe: Power input in kW
Superheat = 10 K Subcooling = 0 K
Min rpm: Minimum rotation speed
3600 rpm: Rotation speed 3600 rpm
Max rpm: Maximum rotation speed
16 FRCC.PC.009.A7.02
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