هندسة
غداً
Variable speed compressors
NVK35FSC, NVS50FSC, NVS70FSC
with controller N206 series
ر290
إرشادات التقديم
www.danfoss.com
Compressor Overview
Why Variable speed?
Variable Speed offers the lowest energy consumption for applications by electronically self-adjusting the compressor’s speed to meet the cooling needs of the appliance, while improving the Coefficient of Performance (COP) by up to 40%.
Commercial refrigeration manufacturers are focusing their efforts on producing more efficient applications to satisfy the demand for reduced operating costs of refrigeration equipment installed in supermarkets, retail premises, and restaurants, where energy savings have become a major concern.
The accurate design of the application and the proper selection of components—such as efficient compressors, fan motors, increased insulation thickness of cabinet walls, larger condensers, and low-consumption lighting—are key to reducing the total energy consumption of the application. The compressor is one of the components with the highest impact in terms of energy consumption in an appliance.
Variable Speed Compressors are the solution for obtaining maximum energy reduction, primarily because full compressor capacity is not always needed. This technology dynamically adapts the compressor’s cooling capacity to the appliance’s needs by adopting electronically controlled running speed, optimizing the system’s performance.
The benefits obtained by using Variable Speed Compressors include:
- The ability to cover several standard compressor models of different cabinet volumes with just one compressor model.
- Reduction in compressor power consumption by up to 45% to 50% compared to standard compressors. This energy saving can be over 40% when considering the total appliance power consumption (attributable solely to the compressor).
- Reduction in pull-down time by operating at a higher speed when needed.
- Reduction in the number of start-ups/stops of the compressor.
- Medication of speed to achieve the longest possible duty cycle.
- Lower noise levels.
- Longer expected compressor life due to the compressor typically running at a lower speed than standard compressors.
- Drop-in electronic driver system for automatically self-adapting the compressor speed to the current thermal load.
- Compatibility with electromechanical and electronic thermostats.
| مواصفة | NVK35FSC | NVS50FSC | NVS70FSC |
| مادة التبريد | ر290 | ||
| Oil type POE RL22H charge | 170 سم3 | ||
| توسع | capillary tube / expansion valve | ||
| طريقة التبريد | Fan Cooling min 3 m/s | ||
| طلب | LMBP | ||
| Evaporation temperature range | -40ºC to 0ºC. | ||
| Condensation temperature range | up to 60ºC (Pull-down peak: 70ºC). | ||
| Ambient temperature range – compressor / controller | 0 to 43ºC / -10ºC to 60ºC | ||
| المجلدtage range / frequency * | 90-140V / 50-60Hz or 160-264V / 50-60Hz | ||
| نوع المحرك | PMSM | ||
| عامل القدرة | ≥0.90 (PFC on) | ||
| تسرب التيار | <3.5 مللي أمبير | ||
| نطاق سرعة المحرك | 1600 – 4500 دورة في الدقيقة | ||
| الحد الأقصى لقوة الإدخال | 320 واط | 600 واط | 600 واط |
| Comp. displacement | 3.5 سم3 | 5 سم3 | 7 سم3 |
| Compressor weight + Electronic unit 0.51 kg | 6 كجم | 6.3 كجم | 6.3 كجم |
| Suction connector I.D. | 6.2 ملم | ||
| Service connector I.D. | 6.2 ملم | ||
| Discharge connector I.D. | 4.9 ملم | ||
| تصاعد القدمين | EU (16 mm holes) |
Compressor dimensional drawings
Compressor performances
Table 1: Cooling Capacity [W] ASHRAE
شروط الاختبار
Condensing temperature 55 ºC
Liquid temperature 32 ºC
Suction temperature 32 ºC
Ambient temperature 32 ºC
غلاف التشغيل
R290 LMBP
سائق الكتروني
The controller drives the compressor at various specic speeds to better match the cooling needs of the refrigeration appliance. There are different inverter types, depending on the power supply type and control signal, as shown in the table.
| نوع المتحكم | نوع الضاغط | طلب | مدى السرعة | المجلدtagنطاق ه | وضع البرمجة |
| HY17111-ب | NVK35FSC | LMBP | 1600 4500 دورة في الدقيقة | 160-264 فولت 50/60 هرتز | تكرار |
| HY17111-BC | NVK35FSC | LMBP | 1600 4500 دورة في الدقيقة | 160-264 فولت 50/60 هرتز | الدخول المباشر |
| N206FR-B02 | NVK35FSC | LMBP | 1600 4500 دورة في الدقيقة | 90-140 فولت 50/60 هرتز | تكرار |
| N206FR-C02 | NVK35FSC | LMBP | 1600 4500 دورة في الدقيقة | 90-140 فولت 50/60 هرتز | الدخول المباشر |
| N206FM-B04 | NVS50FSC/NMD50FSC | LMBP | 1600 4500 دورة في الدقيقة | 160-264 فولت 50/60 هرتز | تكرار |
| N206FM-C04 | NVS50FSC/NMD50FSC | LMBP | 1600 4500 دورة في الدقيقة | 160-264 فولت 50/60 هرتز | الدخول المباشر |
| N206FR-B04 | NVS50FSC/NMD50FSC | LMBP | 1600 4500 دورة في الدقيقة | 90-140 فولت 50/60 هرتز | تكرار |
| N206FR-C04 | NVS50FSC/NMD50FSC | LMBP | 1600 4500 دورة في الدقيقة | 90-140 فولت 50/60 هرتز | الدخول المباشر |
| N206FM-B05 | NVS70FSC/NMD70FSC | LMBP | 1600 4500 دورة في الدقيقة | 160-264 فولت 50/60 هرتز | تكرار |
| N206FM-C05 | NVS70FSC/NMD70FSC | LMBP | 1600 4500 دورة في الدقيقة | 160-264 فولت 50/60 هرتز | الدخول المباشر |
| N206FR-B05 | NVS70FSC/NMD70FSC | LMBP | 1600 4500 دورة في الدقيقة | 90-140 فولت 50/60 هرتز | تكرار |
| N206FR-C05 | NVS70FSC/NMD70FSC | LMBP | 1600 4500 دورة في الدقيقة | 90-140 فولت 50/60 هرتز | الدخول المباشر |
General rules and wiring connections
The NVK and NVS series must always be powered through the dedicated electronic controller, supplied with the compressor as a separate device.
- Never connect the compressor’s hermetic pins directly to an AC or DC source.
- Do not attempt to t an electronic driver different from the one supplied with the compressor, as the compressor will not operate and irreversible damage may occur.
- Do not remove the controller cover while powered on.
تخطيط المحطة
سي إن 1: AC input
CN2: Drop in input
سي إن 3: ضاغط
CN4: إدخال التردد
Operating modes – speed control
Drop in mode with thermostat
Under this mode of operation, the compressor speed is controlled according to the appliance’s requirements. The optimal speed is evaluated based on the speed of the previous cycle and the time the compressor has been running or stopped.
المقدمةtages of Drop-in Control mode include:
- Reduction in compressor power consumption compared to standard compressors.
- Reduction in pull-down time by operating at a higher speed when needed.
- Reduction in the number of start-ups/stops of the compressor.
- Lower Sound Power Level due to the system typically running at a lower speed.
The N206xx-Cxx series inverter is controlled by connecting terminal CN2 to the thermostat. The speed is determined by the controller’s rules (related to the operating rate and run time).
ملحوظة: To ensure the signal is effectively identified, the signal input CN2 should be in phase with L, and the voltage between CN2 and N should be greater than 98VAC. When the input power of the inverter is lower than 10VAC for more than 3 minutes, the inverter is considered to be powered off.
Drop-In Mode Operation
The following describes the detailed operation in drop-in mode:
Pull-Down Mode:
- The compressor initiates operation at 3900 RPM and maintains this speed for 15 minutes.
- Following this initial period, the compressor speed increases to 4200 RPM for an additional 15 minutes.
- Subsequently, the compressor speed increases to its maximum value and remains there until the thermostat opens. There is no time limit (set within the controller) for operation at maximum speed; the compressor continues at this speed until the thermostat reacts.
First Cycle: - After the Pull-Down phase, the first stabilized cycle will operate at 3900 RPM.
Stabilized Conditions: - During the stabilized cycle, the compressor speed is automatically adjusted based on the runtime of the previous cycle. The controller calculates the new speed using the following method:
أين:
Operating Time (Tr) = The duration for which the compressor runs continuously.
Shutdown Time (Ts) = The duration for which the compressor is shut down (the minimum Shutdown Time is programmed to 5 minutes).
Speed Adjustment Logic:
– If the Operating Rate is higher than 85%, the speed in the next cycle will be reduced by 300RPM.
– If the Operating Rate is lower than 85%, the speed in the next cycle will be increased by 300RPM.
Exampليه:
Exampليه 1
If Tr = 10 minutes and Ts = 5 minutes, Operating Rate = 10 / (10 + 5) = 0.66 (66%).
In this case, the compressor speed will be increased in the next cycle to achieve an 85% Operating Rate.
Exampليه 2
If Tr = 40 minutes and Ts = 5 minutes, Operating Rate = 40 / (40 + 5) = 0.88 (88%).
In this case, the compressor speed will be reduced in the next cycle to achieve an 85% Operating Rate.
6. In situations requiring higher cooling capacity (e.g., cabinet door opening, introduction of a warm load, increase in ambient temperature, or modication of thermostat settings), if the thermostat does not open within 30 minutes beyond the previous operating time (Tr), the compressor will reenter Pull-Down Mode until the thermostat opens.
Static Defrost Mode:
Due to the absence of a dedicated defrost input, static defrost can be initiated by interrupting the controller’s power supply. To terminate the defrost cycle, the power supply to the compressor’s controller must be restored. Following this, the compressor will restart in Pull-Down Mode.
Frequency control mode
Under this mode of operation, the compressor speed is controlled through a frequency signal sent to the inverter. The compressor’s speed will follow the frequency signal, according to the relation described in Table 3 and illustrated in Graph 3.
Table 3: Speed control
NVS50 / NVS70FSC
| Control signal F (Hz) | Speed N (rpm) |
| 0 ÷ 48 | 0 |
| 48 ÷ 53 | 1600 |
| 53 ÷ 150 | 30 × ف |
| 150 ÷ 180 | 4500 |
| > 180 | 0 |
Control signal characteristics
The frequency signal is a digital square wave, and its characteristics are described in Table 5.
الجدول 4:
| يكتب | قيمة | وحدة |
| وضع الإشارة | Square wave pulse | |
| دورة العمل | 50±10 | % |
| حجم كبيرtagالمستوى هـ | 5 | VDC |
| Minimum high voltagالمستوى هـ | 4 | VDC |
| Maximum high voltagالمستوى هـ | 6 | VDC |
| حجم منخفضtagالمستوى هـ | ≤0.5 | VDC |
| High current level | 0.003 | A |
| Maximum high current level | 0.010 | A |
| Minimum high current level | 0.002 | A |
| Maximum allowable reverse voltage | 5 | VDC |
| Control frequency signal | f0 ~ f3 | Hz |
| Relation between Control frequency signal and compressor speed | Frequency(Hz)×30 | دورة في الدقيقة |
Driver Protection Characteristics
The electronic driver is electronically protected against several possible malfunctions and failures. A LED light is installed on the driver board to display the intervention of any alarm and to identify its cause. The visual indication consists of a sequence of LED flashes repeating every 5 seconds until the alarm cause disappears. The code for the flashing sequence corresponding to each alarm is indicated in the following table.
الجدول 5:
| نوع الحماية | حالة الصمام |
| حماية من التيار الزائد | 1 فلاش |
| أكثر من المجلدtagالحماية الإلكترونية | 2 فلاش |
| تحت المجلدtagالحماية الإلكترونية | 3 فلاش |
| حماية الأجهزة | 4-5 flash |
| Electronic board Protection | 6-7 flash |
| Failure during starting | 8 فلاش |
| حماية فقدان الطور | 9-11 flash |
| حماية من ارتفاع درجة الحرارة | 12 فلاش |
| Motor speed not reached | 13 فلاش |
| حماية من الطاقة الزائدة | 14 فلاش |
Controller characteristics
أبعاد وحدة التحكم
Input and Output characteristic
الجدول 6:
| صفات | قيمة |
| حجم التشغيلtage | راجع الجدول 2 |
| الأبعاد (الطول × العرض × الارتفاع) | 166.9 × 134.5 × 50.8 ملم |
| مدخلات تردد الطاقة | شنومكسهز / شنومكسهز |
| الحد الأقصى لقوة الإدخال | 600 واط |
| مصحح معامل القدرة | ≥0.90 (PFC on) |
| Frequency input signal | راجع الجدول 4 |
| Thermostat signal | Digital, nominal voltagه من وحدة التحكم |
| Hot Gas Defrost signal | |
| طول كابل المحرك | 350 ملم |
| تسرب التيار | <3.5 مللي أمبير |
| Input fuse specification | 6.3 أمبير / 250 فولت تيار متردد |
| Inverter and compressor cooling | Min. 3 m/s |
| فئة IP | الملكية الفكرية 54 |
| درجة حرارة التشغيل | 0 درجة مئوية إلى +60 درجة مئوية |
| رطوبة التشغيل | 10% إلى 85% |
| درجة حرارة التخزين | -40 درجة مئوية إلى +80 درجة مئوية |
Packaging and Ordering
عبوة صناعية
(compressors on pallet)
| شفرة** | وصف | ضاغط | المجلد الاسميtage | وحدة التحكم يكتب | التشغيل وضع | منصة نقالة كمية |
| 125F3915 | NVK35FSC+N206FM-C02 drop-in; 220-240V | NVK35FSC | 220-240 فولت | N206FM-C02 | إنزل | 24×5=120 pcs |
| 125F3916 | NVK35FSC+N206FM-B02 frequency; 220-240V | NVK35FSC | 220-240 فولت | N206FM-B02 | تكرار | 24×5=120 pcs |
| 125F3923 | NVK35FSC+N206FR-C02 drop-in; 115-127V | NVK35FSC | 115-127 فولت | N206FR-C02 | إنزل | 24×5=120 pcs |
| 125F3924 | NVK35FSC+N206FR-B02 frequency; 115-127V | NVK35FSC | 115-127 فولت | N206FR-B02 | تكرار | 24×5=120 pcs |
| 125F3911 | NVS50FSC+N206FM-C04 drop-in; 220-240V | NVS50FSC | 220-240 فولت | N206FM-C04 | إنزل | 24×5=120 pcs |
| 125F3912 | NVS50FSC+N206FM-B04 frequency; 220-240V | NVS50FSC | 220-240 فولت | N206FM-B04 | تكرار | 24×5=120 pcs |
| 125F3927 | NVS50FSC+N206FR-C04 drop-in; 115-240V | NVS50FSC | 115-127 فولت | N206FR-C04 | إنزل | 24×5=120 pcs |
| 125F3928 | NVS50FSC+N206FR-B04 frequency; 115-240V | NVS50FSC | 115-127 فولت | N206FR-B04 | تكرار | 24×5=120 pcs |
| 125F3901 | NVS70FSC+ N206FM-C05; drop-in; 220-240V | NVS70FSC | 220-240 فولت | N206FM-C05 | إنزل | 24×5=120 pcs |
| 125F3902 | NVS70FSC+ N206FM-B05; frequency; 220-240V | NVS70FSC | 220-240 فولت | N206FM-B05 | تكرار | 24×5=120 pcs |
| 125F3925 | NVS70FSC+ N206FR-C05; drop-in; 115-127V | NVS70FSC | 115-127 فولت | N206FR-C05 | إنزل | 24×5=120 pcs |
| 125F3926 | NVS70FSC+ N206FR-B05; frequency; 115-127V | NVS70FSC | 115-127 فولت | N206FR-B05 | تكرار | 24×5=120 pcs |
** – code contains compressor + controller + mountings
حزمة واحدة
(compressors packed individually in carton box)
| شفرة** | وصف | ضاغط | الاسمي المجلدtage | وحدة التحكم يكتب | التشغيل وضع |
| 125ب3915 | NVK35FSC+N206FM-C02 drop-in; 220-240V | NVK35FSC | 220-240 فولت | N206FM-C02 | إنزل |
| 125ب3916 | NVK35FSC+N206FM-B02 frequency; 220-240V | NVK35FSC | 220-240 فولت | N206FM-B02 | تكرار |
| 125ب3923 | NVK35FSC+N206FR-C02 drop-in; 115-127V | NVK35FSC | 115-127 فولت | N206FR-C02 | إنزل |
| 125ب3924 | NVK35FSC+N206FR-B02 frequency; 115-127V | NVK35FSC | 115-127 فولت | N206FR-B02 | تكرار |
| 125ب3911 | NVS50FSC+N206FM-C04 drop-in; 220-240V | NVS50FSC | 220-240 فولت | N206FM-C04 | إنزل |
| 125ب3912 | NVS50FSC+N206FM-B04 frequency; 220-240V | NVS50FSC | 220-240 فولت | N206FM-B04 | تكرار |
| 125ب3927 | NVS50FSC+N206FR-C04 drop-in; 115-240V | NVS50FSC | 115-127 فولت | N206FR-C04 | إنزل |
| 125ب3928 | NVS50FSC+N206FR-B04 frequency; 115-240V | NVS50FSC | 115-127 فولت | N206FR-B04 | تكرار |
| 125ب3925 | NVS70FSC+ N206FM-C05; drop-in; 220-240V | NVS70FSC | 220-240 فولت | N206FM-C05 | إنزل |
| 125ب3926 | NVS70FSC+ N206FM-B05; frequency; 220-240V | NVS70FSC | 220-240 فولت | N206FM-B05 | تكرار |
| 125ب3901 | NVS70FSC+ N206FR-C05; drop-in; 115-127V | NVS70FSC | 115-127 فولت | N206FR-C05 | إنزل |
| 125ب3902 | NVS70FSC+ N206FR-B05; frequency; 115-127V | NVS70FSC | 115-127 فولت | N206FR-B05 | تكرار |
ملحوظة: Minimum order quantity is 20 pcs
** – code contains compressor + controller + mountings
الضواغط التجارية دانفوس
Is a worldwide manufacturer of compressors and condensing units for refrigeration and HVAC applications. With a wide range of high quality and innovative products we help your company to find the best possible energy efficient solution that respects the environment and reduces total life cycle costs.
لدينا 40 عامًا من الخبرة في مجال تطوير الضواغط المحكمية مما جعلنا من بين الرواد العالميين في أعمالنا، ووضعنا كمتخصصين متميزين في مجال تكنولوجيا السرعات المتغيرة. نعمل اليوم من خلال مرافق هندسية وتصنيعية تمتد عبر ثلاث قارات.
Our products can be found in a variety of applications such as rooftops, chillers, residential air conditioners, heat pumps, cold-rooms, supermarkets, milk tank cooling and industrial cooling processes.
دانفوس A / S
حلول المناخ danfoss.com +45 7488 2222
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المستندات / الموارد
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Danfoss NV Series FSC Variable Speed Compressors [بي دي اف] دليل التعليمات NVK35FSC, NVS50FSC, NVS70FSC, NV Series FSC Variable Speed Compressors, NV Series FSC, Variable Speed Compressors, Speed Compressors |