BITZER Output data

Created on : 11.06.2015 14:48:37

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Table of content

Project survey............................................................................................................................................................ 3
Compressor Selection: Semi-hermetic Reciprocating Compressors......................................................................... 4
Technical Data: 4NES-20Y........................................................................................................................................ 5
Semi-hermetic Reciprocating Compressors.............................................................................................................. 6
Horizontal receivers................................................................................................................................................... 7
Liquid receiver........................................................................................................................................................... 8
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Project survey
Selected compressors
Semi-hermetic Reciprocating Compressors 1x 4NES-20Y

Chosen accessory
Horizontal receivers
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Compressor Selection: Semi-hermetic Reciprocating Compressors

Input Values
Compressor model 4NES-20Y Suction gas temperature 22,0 °C
Mode Refrigeration and Air Operating mode Auto
conditioning
Refrigerant R404A Power supply 400V-3-50Hz
Reference temperature Dew point temp. Capacity Control 100%
Liq. subc. (in condenser) 0K Useful superheat 100%
Result
Q [W] Cooling capacity COP [ - ] COP/EER
Q* [W] Cooling capacity * COP* [ - ] COP/EER *
P [kW] Power input m [kg/h] Mass flow
I [A] Current Op. Operating mode
Qc [W] Condenser Capacity th [°C] Discharge gas temp. w/o cooling

tc to 10°C 5°C 0°C -5°C -10°C -15°C -20°C -25°C

30°C Q [W] -- 67372 56030 46241 37810 30579 24412 19187
Q* [W] 67049 55748 46000 37609 30414 24278 19081
P [kW] 11,68 11,45 11,00 10,38 9,62 8,76 7,83
I [A] 20,7 20,4 19,83 19,01 18,03 16,97 15,89
Qc [W] 79048 67477 57245 48195 40204 33171 27013
COP [ - ] 5,77 4,89 4,20 3,64 3,18 2,79 2,45
COP* [ - ] 5,74 4,87 4,18 3,62 3,16 2,77 2,44
m [kg/h] 1712 1405 1146 929 745 591 462
Op. Standard Standard Standard Standard Standard Standard Standard
th [°C] 56,8 62,8 69,0 75,5 82,3 89,6 97,4
40°C Q [W] -- 57319 47532 39077 31797 25561 20256 15777
Q* [W] 56941 47204 38798 31565 25372 20104 15656
P [kW] 14,06 13,42 12,60 11,64 10,58 9,45 8,29
I [A] 24,2 23,2 22,0 20,7 19,26 17,81 16,42
Qc [W] 71383 60952 51676 43437 36140 29706 24069
COP [ - ] 4,08 3,54 3,10 2,73 2,42 2,14 1,90
COP* [ - ] 4,05 3,52 3,08 2,71 2,40 2,13 1,89
m [kg/h] 1644 1343 1090 877 699 550 425
Op. Standard Standard Standard Standard Standard Standard Standard
th [°C] 67,6 73,6 79,9 86,5 93,5 101,0 109,1
50°C Q [W] -- 47303 39100 32006 25900 20678 16246 12517
Q* [W] 46825 38705 31681 25636 20465 16075 12383
P [kW] 16,19 15,16 13,99 12,72 11,39 10,03 8,67
I [A] 27,4 25,8 24,1 22,2 20,4 18,54 16,87
Qc [W] 63492 54259 45998 38623 32068 26273 21189
COP [ - ] 2,92 2,58 2,29 2,04 1,82 1,62 1,44
COP* [ - ] 2,89 2,55 2,26 2,01 1,80 1,60 1,43
m [kg/h] 1575 1279 1032 825 652 507 388
Op. Standard Standard Standard Standard Standard Standard Standard
th [°C] 78,6 84,7 91,2 98,0 105,2 113,1 121,9
-- No calculation possible (see message in single point selection)
*According to EN12900 (20°C suction gas temp., 0K liquid subcooling)

Application Limits 100%

Legend
additional cooling or suction gas
superheat ≤20K
additional cooling or max. toh
<0°C
M1: motor 1

M2: motor 2
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Technical Data: 4NES-20Y

Dimensions and Connections

Technical Data
Technical Data
Displacement (1450 RPM 50Hz) 56,25 m3/h
Displacement (1750 RPM 60Hz) 67,89 m3/h
No. of cylinder x bore x stroke 4 x 70 mm x 42 mm
Weight 150 kg
Max. pressure (LP/HP) 19 / 32 bar
Connection suction line 42 mm - 1 5/8''
Connection discharge line 28 mm - 1 1/8''
Oil type R134a/R407C/R404A/R507A/R407A/R407F BSE32(Standard) / R134a tc>70°C: BSE55 (Option)
Oil type R22 (R12/R502) B5.2(Option)
Motor data
Motor version 1
Motor voltage (more on request) 380-420V PW-3-50Hz
Max operating current 33.2 A
Winding ratio 50/50
Starting current (Rotor locked) 97.0 A Y / 158.0 A YY
Max. Power input 19.0 kW
Extent of delivery (Standard)
Motor protection SE-B1
Enclosure class IP65
Vibration dampers Standard
Oil charge 2,60 dm³
Available Options
Discharge gas temperature sensor Option
Start unloading Option
Capacity control 100-50% (Option)
Capacity Control - infinite 100-10% (Option)
Additional fan Option
Oil service valve Option
Crankcase heater 0..140 W PTC (Option)
Oil level monitoring OLC-K1 (Option)
Sound measurement
Sound power level (+5°C / 50°C) 77,5 dB(A) @50Hz
Sound power level (-10°C / 45°C) 78,3 dB(A) @50Hz
Sound power level (-35°C / 40°C) 82,9 dB(A) @50Hz
Sound pressure level @ 1m (+5°C / 50°C) 69,5 dB(A) @50Hz
Sound pressure level @ 1m (-10°C / 45°C) 70,3 dB(A) @50Hz
Sound pressure level @ 1m (-35°C / 40°C) 74,9 dB(A) @50Hz
Sound power level (+5°C / 50°C) R134a 75,5 dB(A) @50Hz
Sound power level (-10°C / 45°C) R134a 76,3 dB(A) @50Hz
Sound pressure level @ 1m (+5°C / 50°C) R134a 67,5 dB(A) @50Hz
Sound pressure level @ 1m (-10°C / 45°C) R134a 68,3 dB(A) @50Hz
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Semi-hermetic Reciprocating Compressors

Motor 1 = e.g. 4TES-12 (4TCS-12.2) with 12"HP", primary for air-conditioning (e.g. R22,R407C) and air-conditioning with
R134a at high ambient temperatures
Motor 2 = e.g. 4TES-9 (4TCS-8.2) with 8"HP", universal Motor for medium and low temperature application (e.g. R404A,
R507A, R407A, R407F) and air-conditioning with R134a.
Motor 3 = e.g. 4TES-8, for medium temperature applications and R134a
For more information concerning the application range use the "Limits" button.

Operation modes 4VES-7 (4VCS-6.2) to 6FE-44 (6F-40.2) and 44JE-30 (44J-26.2) to 66FE-88 (66F-80.2) with
R407F/R407A/R22:
CIC = liquid injection with low temperature application, suction gas cooled motor

ASERCOM certified performance data:

The Association of European Refrigeration Component Manufacturers has implemented a procedure of certifying
performance data. The high standard of these certifications is assured by:
-- plausibility tests of the data performed by experts
-- regular measurements at independent institutes
These high efforts result in the fact that only a limited number of compressors can be submitted. Due to this not all
BITZER compresors are certified until now.
Performance data of compressors which fulfil the strict requirements may carry the label "ASERCOM certified". In this
software you will find the label at the respective compressors on the right side below the field "result" or in the print out of
the performance data. All certified compressors and further information are listed on the homepage of ASERCOM
(www.ASERCOM.org).

Condensing capacity:
The condensing capacity can be calculated with or without heat rejection. This option can be set in the menu PROGRAM/
OPTIONS. The heat rejection is constantly 5% of the power consumption. The condensing capacity is to be found in the
line Condensing cap. (with HR) resp. Condensing capacity.

Data for sound emission:

Data based on 50 HZ apllication (IP-units 60Hz) and R404A if not declared.
Sound pressure level: values based on free field area conditions with hemisperhical sound emission in 1 meter distance.

General remarks regarding sound data:

Listed sound data were measured under testing conditions in our laboratory. For this purpose the free-standing test
sample is mounted on a solid foundation plate and the pipework is connected vibration-free to the largest extend
possible. Suction and discharge lines are fixed in a flexible configuration, such that a transmission of vibrations to the
environment can be largely excluded. In real installations considerable differences might be observed, compared to the
measurements in the laboratory. The airborne sound emitted by the compressor can be reflected from surfaces of the
system and this may increase the airborne sound level measured close to the compressor. Vibrations caused by the
compressor are also transferred to the system by the compressor feet and piping depending on the damping ratio of the
fixings. Thus, the vibrations can induce other components to such an extent that these components contribute to an
increase in airborne sound emission. If required, the transfer of vibrations to the system can be minimized by suitable
fixing and damping elements.

Legend of connection positions according to "Dimensions":

1 High pressure connection (HP)

2 Discharge gas temperature sensor (HP)
3 Low pressure connection (LP)
4 CIC system: spray nozzle (LP)
4b CIC sensor
5 Oil fill plug
6 Oil drain (magnetic screw)
7 Oil filter
8 Oil return (oil separator)
9 Oil and gas equalization (parallel operation)
9a Gas equalization (parallel operation)
9b Oil equalization (parallel operation)
10 Crankcase heater
11 Oil pressure connection +
12 Oil pressure connection -
13 Cooling water connection
16 Connection for differential oil pressure switch "Delta-P"
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Horizontal receivers
Input Values
Common Yes
Auto
Operating point Auto

Operating Points
A
to [°C] -10
tc [°C] 45

Result

#1: **Err_996998** [996998]

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Liquid receiver
Selection of the receivers:

1) "Approx. according to cooling capacity":

The receiver volume is determined by the design of the unit, the operating mode and the function of the receiver
(receiving the complete refrigerant charge in the receiver or only compensating capacity variations). When selected via
cooling capacity, an approximate selection of the receiver is obtained.
Receivers in systems with long pipelines, winter control or in very compact systems should be selected according to
method 2).

2) "According to refrigerant charge in the receiver":

The calculation is made on the basis of the specified refrigerant charge. The receiver volume is determined at 20°C and
at a maximum filling charge of 95% of the possible receiver content.

Compressor units equipped with receiver

The BITZER range of products comprises compressor units with horizontal receivers. In the output window of the
accessories these units, which are included in the standard delivery, are marked with “mounted” in the compressor unit
line. Units that can be mounted, but are not included in the Bitzer delivery program, are marked with “single parts”.
Units in which the compressor does not fit onto the receiver are marked with "--".

Legend of connection positions according to "Dimensions":