! " # $#
%&' ( ! )%* +$
Product Manual
806 B – 06/06 DDate: June 2006
Supersedes: 806B 04/11 C
McQuay is participating in the Eurovent Certification Programme.
Product are as listed in the Eurovent Directory of Certified Products and on the web site www .eurovent-certification. com
ELWT fluctuation with steps capacity control (4 steps)
NO EWLT fluctuation with McQuay stepless capacity control (4 steps)
Water cooled screw chillers McQuay ECOPLUS
McQuay water cooled ECOPLUS is a range of chillers using McQuay StarGateTM Frame 3200 single screw compressors. They are manufactured by McQuay to satisfy the requirements of the consultants and the end user.
McQuay ECOPLUS units are designed to minimise energy costs while maximising the refrigeration capacities.
Once again McQuay has developed a line of chillers unsurpassed in performance and quality that will meet the most stringent requirements of comfort cooling, ice storage and process applications.
McQuay’s chiller design experience, combined with outstanding features makes the ECOPLUS chiller unmatched in the industry.
Lower noise – higher flexibility
The primary reason for quiet operation is the compressor design itself. McQuay continues the philosophy of a single main rotor with two adjacent twin rotating gaterotors. This allows the possibility to have two compression cycles per main rotor round and so a constant gas flow. This compression process completely eliminates gas pulsations, one of the most important noice source. The oil injection also results in a significant mechanical noise reduction.
The twin gas compressor discharge chambers are designed to act as attenuators, based on the harmonic wave principle with destructive interference, thus always resulting almost equal to zero. The extremely low noise compressor performance allows the use of ECOPLUS chiller for all applications.
Lower Vibration Levels – higher reliability
Because the moving components in the McQuay Single Screw Compressor are purely rotational and the loads are basically balanced, the dynamic forces and vibrations created by the system are very low. This reduced vibration results in less movement to refrigerant lines and other parts of the system.
The extremely low vibration levels, inherent with the single-screw design, will not pass through system piping and allow objectionable resonated sound to be carried into the building.
Code requirements
All water cooled units are designed and manufactured in accordance with applicable selections of the following which are equivalent to American Air-conditioning industry applicable codes:
Rating of chillers: EN 12055.
Construction of pressure vessel: TUV Standards (on request).
Electrical codes: IEC 204-1 CEI 44-5 Elect. & Safety Codes Safety Codes: CEI-EN 60204–1 Codes.
Manufacturing Quality Stds: ISO 9001:2000.
Infinitely variable capacity control
Cooling capacity control is infinitely variable by means of a capacity slide controlled by microprocessor system.
Each unit has infinitely variable capacity control from 100% down to 25% (one compressor unit), down to 12,5% (two compressors units). This modulation allows the compressor capacity to exactly match the building cooling load without any leaving evaporator water temperature fluctuation. This chilled water temperature fluctuation is avoided only with a stepless control, such as McQuay Interenational has. With a compressor load step control in fact, the compressor capacity, at partial loads, will be or too high or too low compared to the building cooling load. The result is a decrease in chiller energy costs, particularly at the part-load conditions at which the chiller operates most of the time.
Additionally, in some case there should be the possibility to avoid inertial tank in the water circuit.
Unmatched serviceability
Field serviceability has not been sacrificed. Inspection covers allows visual inspection of the main screw and gaterotors.
tim e
Compressor Load
Building Load
Building Load
Compressor Load
Outstanding reliability features
Unsurpassed Efficiency
• Zero clearance fit between the two gaterotors and main screw rotor virtually eliminates leakage between the high and low-pressure sides during compression. Special gaterotor material made from an advanced composite, temperature stable material makes a zero clearance design possible.
• The McPower air-cooled chiller is equipped with the most advanced means of refrigerant flow control available. An electronic expansion valve coupled with the MicroTech II C Plus controller's control logic provides excellent operating efficiencies both at full and part load operation.
• Infinite unloading matches compressor capacity to load.
• Full factory testing of the unit with water hookups helps provides a trouble-free start-up. Extensive quality control checks during testing means that each equipment protection and operating control is properly adjusted and operates correctly before it leaves the factory. Factory-installed options minimize field expenses and startup labor.
• The rugged design of the single-screw compressor allows it to be tolerant of liquid slugging. McPower screw chiller will start and operate under conditions that would often destroy other compressors.
• Very low loading enhances the bearing and compressor reliability. Due to symmetrical compression taking place on both sides of the main screw rotor, balanced forces result in the elimination of the large radial force loads inherent in twin-screw compressors.
• Integral to the basic design of the single-screw compressor, the main screw rotor shaft and the gaterotor shafts cross at right angles in the compressor. The result is ample space to locate heavy duty bearings and increase compressor reliability since no limitations are placed on bearing design as found in twin- screw compressors.
General characteristics
Structure
The chiller is equipped with brackets directly installed on heat exchangers. The evaporator and the suction piping are appropriately insulated to prevent condensation. Unit is provided with lifting holes.
Screw compressors
The StargateTM single-screw compressor has a well balanced compression mechanism which cancels the screw rotor load in both the radial and axial directions. Inherent to the basic single-screw compressor design is the virtually load-free operation, that gives main bearing design life of 3-4 times greater than twin-screws, and eliminates expensive and complicated thrust balancing schemes. The two exactly opposed gaterotors create two
Screw
Gaterotor Gaterotor
A
B B B
B
A A
B B B
B
A
High Axial and Radial thrusts in TwinScrew Compressor
Single Screw Compressor Single Screw Compressor Twin Screw Compressor
Zeotropic refrigerant as HFC 407C Azeotropic refrigerant
as HFC 134a
Oil injection is used for these compressors in order to get high COP at high condensing pressure. The oil supplied to the compressor performs three basic functions: oil for capacity control actuation, oil for bearing lubrication, oil for sealing. The oil is injected via fixed ports in the casing around the rotor.
Compressors have an infinitely variable capacity control down to 25% of its total capacity. This control is made by means of capacity slides controlled by microprocessors.
The compressor is furnished with an integrated high efficiency oil separator to maximise oil extraction.
The compressor is provided with a liquid injection circuit to reach high sealing and oil cooling.
Standard start is star-delta type; Soft start type is available (as option) in order to have lower inrush current in almost all work conditions and to provide smooth, slow stepless acceleration and controlled slow deceleration reducing mechanical and electrical stress for even greater compressor/motor life.
Ecological HFC 134a refrigerant
McQuay has designed and optimized StargateTM compressors to operate with HFC 134a, ecological refrigerant with zero ODP (Ozone Depletion Potential) and very low GWP (Global Warming Potential) that means low value of the “direct effect” in the formula of TEWI (Total Equivalent Warming Impact).
The HFC 134a refrigerant cycle has very good thermodinamic efficiency and pressure values for the condensing section are very low. This means less stress for the mechanical moving parts of the compressor and therefore a higher reliability for it. Also the discharge gas temperature is low thanks to using of this refrigerant; this means better performance for shell and tube condenser and always very good working condition for the oil.
This refrigerant is safe and chemically stable ans is listed in ASHRAE Standard-34 (Number Designation and Safety Classification For Refrigerants) as “A-1” refrigerant: lowest toxicity, non-flammable.
HFC 134a doesn’t have “Glide” therefore it’s an AZEOTROPIC refrigerant. This helps to reach a perfect evaporator leaving water temperature control and doesn’t give maintenance problem.
Evaporator
The units is supplied with optimised counter-flow evaporator single refrigerant pass that allows a perfect oil circulation and so a perfect oil return to the compressor. It is direct expansion with refrigerant inside the tubes and water outside (shell side) with carbon steel tube sheets, with straight copper tubes that are spirally wound internally for higher efficiencies, expanded on the tube plates. The external shell, is linked with an electrical heater to prevent freezing up to -28 C ambient temperature, commanded by a thermostat and is covered with a closed cell insulation material. Each evaporator has 1 or 2 circuits, one for each compressor and is manufactured in accordance to PED approval. The evaporator water outlet connections are provided with Victaulic Kit.
Condensers
Condensers are shell and cleanable, through-tube type. The unit has indenpendent condensers, one per circuit.
Each condenser has a carbon steel and seamless, integrally finned high efficiency copper tubes, roll expanded into heavy carbon steel tube sheets. Water heads are removable and include vent and drain plugs. Condensers come complete with liquid shut-off valve, spring loaded relief valve.
Electronic expansion valve (EEXV)
ECOPLUS water cooled chiller is equipped with the most advanced electronic expansion valve to achieve precise control of refrigerant mass flow. As today’s system requires improved energy efficiency, tighter temperature control, wider range of operating conditions and incorporate features like remote monitoring and diagnostics, the application of electronic expansion valves becomes mandatory. ECOPLUS electronic expansion valve proposes features that makes it unique: short opening and closing time, high resolution, positive shut-off function to eliminate use of additional solenoid valve, highly linear flow capacity, continous modulation of mass flow without stress in the refrigerant circuit and corrosion resistance stainless steel body.
EEXV strength point is the capacity to work with lower ∆P beetwen high and low pressure side, than a thermostatic expansion valve. The electronic expansion valve allows the system to work with low condenser pressure (winter time) without any refrigerant flow problems and with a perfect chilled water leaving temperature control. Working with lower condensing pressure give you the possibility to reach a big energy saving.
Electrical control panel
Power and control are located into two sections of the main panel that is manufactured to insure protection for all weather conditions.
The power panel is fitted with an interlocked door main isolator to prevent access while power supply is on.
Electrical panel is IP43.
Power section includes - The power section includes contactors, all compressors fuses and control circuit transformer. Additional space is provided for an easy installation of the various optional accessories provided to enhance the ECOPLUS units capabilities.
Certifications
All the ECOPLUS units are CE marked (89/392). McQuay Italia obtained ISO 9001:2000.
Water content in cooling circuits
The cooled water distribution circuits should have minimum water content to avoid excessive compressors start and stop.
In fact, each time the compressor starts up, an excessive quantity of oil goes from the compressor sump and simultaneously there is a rise in the temperature of the compressor motor’s stator due to the inrush current during the start-up. To prevent damage to the compressors, McQuay has envisaged the application of a device to limit frequent stops and restarts.
During the span of one hour there will be no more than 6 starts of the compressor. The plant side should therefore ensure that the overall water content allows a more constant functioning of the unit and consequently greater environmental comfort. The minimum water content per unit should be calculated with a certain approximation using this simplified formula:
(1) Q = 35,83 X
) C ( T
(kW) P
°
∆
where:
Q = minimum water content per unit expressed in litres P = minimum cooling capacity of the unit expressed in kW
∆T = evaporator entering / leaving water temperature difference expressed in °C
For more accurate determination of quantity of water, it is advisable to contact the designer of the plant.
MicroTech II C Plus controller
MicroTech II C Plus controller is installed as standard on all the units; it can be used to modify unit set points and check control parameters. A display illustrates the machine's operating status, programable values and setpoints e.g. temperatures, and pressures of fluids (water, refrigerant). Device controls maximise the McQuay chillers energy efficiency and reliability characteristics. It uses sophisticated software with predictive logic to select the most energy efficient combination of compressor, expansion device and condenser fan to keep stable operating conditions and maximise energy efficiency. The compressors are automatically rotated to ensure equal operating hours. MicroTech II C Plus protects critical components in response to external signals from its system sensors measuring: motor temperatures, refrigerant gas and oil pressures, correct phases sequence and phase loss.
Control section - main features:
• Chillers enabled to work in partial failure condition thanks to the distributed multiprocessor logic system
• Full routine operation at condition of:
High ambient temperature value High thermal load
High evaporator entering water temperature (start-up)
• Display of evaporator entering/leaving water temperature
• Display of condensing-evaporating temperature and pressure, suction and discharge superheat temperature
• Start up numbers and compressors working hours equalization
• Excellent management of compressors load
• Cooling tower’s fans management according to condensing pressure
• Automatic re-start in case of power supply interruption (adjustable)
• Soft Load
• Return Reset
• AOT Reset (optional)
• Setpoint Reset (optional)
• Demand limit or Current limit (optional)
Safety for each refrigerant circuit
High pressure (pressure switch) Compressor overload (optional)
High Discharge Temperature on the compressor Phase Monitor
Star / Delta Transition Failed
Low Delta Pressure between Suction and Discharge Low pressure ratio
High oil pressure drop Low oil pressure
System security
Phase monitor Freeze protection
An evaporator’s flow controller input (stops the unit) Remote on/off input.
Regulation type
Proportional + integral + derivative regulation on the input probe of the evaporator water leaving temperature.
MicroTech II C Plus terminal
The MicroTech II C Plus terminal has following features:
• 4-lines by 20-character liquid crystal display back lighted
• Key-pad consisting of 15 keys “ clear language display ”
• Memory to protect the data
• General faults alarm led
• 4-level password access to modify the setting
• Service report displaying all running hours and general conditions
• Memorized alarm history to facilitate the fault’s analysis.
PlantVisor
TM:
Solution for tele-maintenance and supervisory
MicroTech II C Plus can be monitored locally or via modem or GSM by PlantVisorTM supervision program.
PlantVisorTM is compatible with Windows NT, 2000, XP. It is based on 16 bit WEB technology.
It allows the followings functions.
• Unit status monitoring.
• Circuits status monitoring.
• Set-points modification.
• Alarms display.
MicroTech II C Plus remote control
MicroTech II C Plus is able to communicate to BMS (Building Management System) if the protocol is one of the following.
• CAREL.
• Modbus.
• LonWorks.
• BacNet point to point.
Standard Accessories (furnished on basic unit)
Star Delta Compressors starter – For low inrush current and reduced starting torque.
Phase monitor – The phase monitor controls that fases sequence is correct and controls the phase loss.
Evaporator connection water side Victaulic – Hydraulic joint with gasket for an easy and quick water connection.
Hour run meter – Digital compressors hour run meter.
General fault relay – Contactor for the alarm warning.
Alarm from external device – Microprocessor is able to receive an alarm signal from an exthernal device (pump, etc.). User can decide if this alarm signal will stop or not the unit.
Discharge line shut off valves.
Options (on request)
100% total heat recovery – Produced with tube bundle placed in a single shell with the water condensers. Heat exchangers heads are provided with 2 connections for entering/leaving heat recovery water and 2 separate connections for condensing water.
Partial heat recovery – Produced with plate to plate heat exchangers installed on discharge side of compressor hot gas. These allow hot water to be produced up to a maximum temperature of + 50°C.
Compressor thermal overload relays - Safety devices against compressor motor overloading in addition to the normal protection envisaged by the electrical windings.
Ammeter and voltmeter - Digital meters of unit drawn amperes and voltage values, installed on the electrical control panel.
Condenser power factor correction - Installed on the electrical control panel to ensure it conforms to the plant rules. (McQuay advices maximum 0,9).
Flow switch - Supplied separately to be wired and installed on the evaporator water piping (by the customer).
20mm thicked evaporator insulation – Useful in really heavy operating conditions.
Suction line shut off valve – Suction shut-off valve installed on the suction port of the compressor to facilitate maintenance operation.
Cu-Ni 90-10 condenser – To work with sea water the heat exchangers are fitted with Cu-Ni tubes and special protection inside the end covers.
Rubber type antivibration mounts - Supplied separately, these are positioned under the base of the unit for
“floor” installation.
Sound proof cabinet - Made of sheet metal and internally insulated, the sound proof cabinet is around the compressor/s to reach the best performance in noise reduction.
Witness tests - The units are normally tested at the test bench prior to the shipment. On request, a second test can be carried out, at customer’s presence, in accordance with the procedures indicated on the test form. (Not
Installation notes
Warning
Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and regulations, and who are experienced with this type of equipment. Must be avoided the unit installation in places that could be considered dangerous for all the maintenance operations.
Handling
The chiller is mounted on heavy wooden skids to protect the unit from accidental damage and to permit easy handling and moving. It is recommended that all moving and handling be performed with the skids under the unit when possible and that the skids not be removed until the unit is in the final location.
Spreader bars must be used to protect the control cabinet and the other areas of the chiller.
Location
A levelled and sufficiently strong floor is required. If necessary, additional structural members should be provided to transfer the weight of the unit to the nearest beams.
Rubber-in-shear isolators can be furnished and field placed under each corner of the package. A rubber anti–skid pad should be used under isolators if hold-down bolts are not used. Vibration isolator in all water piping connected to the chiller are recommended to avoid straining the piping and transmitting vibration and noise.
Operating limits
Note: the use of glycol is necessary for evaporator leaving water temperature below +3°C
Table 1 – Maximum and minimum evaporator and condenser water ∆∆∆∆ T
Min ∆∆∆∆T evaporator/condenser water °C 4
Max ∆∆∆∆T evaporator/condenser water °C 8
Table 2 – Evaporator fouling factors
Fouling factors m2°C / kW
Cooling capacity correction factor
Power input corretion factor
COP correction factor
0,0176 1,000 1,000 1,000
0,0440 0,978 0,986 0,992
0,0880 0,957 0,974 0,983
0,1320 0,938 0,962 0,975
Operating range ECOPLUS
20 25 30 35 40 45 50 55
-10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18
Evaporator le aving tem perature - °C
Condenser leaving temperature - °C
Please, refer to the note to operate chiller
in this area
Table 3 – Condenser fouling factors
Fouling factors m2°C / kW
Cooling capacity correction factor
Power input corretion factor
COP correction factor
0,0440 1,000 1,000 1,000
0,0880 0,990 1,018 0,973
0,1320 0,981 1,036 0,945
Table 4 – Ethylene glycol and low ambient temperature correction factors
Air ambient temperature °C -3 -8 -15 -23 -35
% of ethylene glycol by weight 10 20 30 40 50
Cooling capacity correction factor 0,991 0,982 0,972 0,961 0,946
Power input correction factor 0,996 0,992 0,986 0,976 0,966
Flow rate correction factor 1,013 1,040 1,074 1,121 1,178
Water pressure drops correction factor 1,070 1,129 1,181 1,263 1,308
Table 5 – Low temperature operation performance factors
Ethylene glycol/water leaving temperature °C 2 0 -2 -4 -6 -8
Min. % of ethylene glycol 10 20 20 30 30 30
Cooling capacity correction factor 0,842 0,785 0,725 0,670 0,613 0,562 Power input compressors correction factor 0,95 0,94 0,92 0,89 0,87 0,84
Nomenclature
ECOPLUS 120 . 2 SE ST 134
ECOPLUS Water cooled Screw chiller
050 ÷ 165 Unit size
1 N° of compressors
2
SE Standard efficiency
XE High efficiency
ST Standard version ME Condenserless version LR Version with liquid receiver 134 Refrigerant HFC 134a
Physical data ECOPLUS SE with HFC 134a
ECOPLUS unit size 050.1 060.1 073.1 080.1 100.2
Cooling capacity (1) kW 165,5 201,2 252,8 280,4 333,9
Power input (1) kW 42,1 50,7 64,9 75,4 84,3
McQuay StargateTM Screw compressor N. 1 1 1 1 2
Refrigerant circuits N. 1 1 1 1 2
Refrigerant charge HFC 134a kg 50 50 50 50 100
Min % of capacity reduction % 25 25 25 25 12,5
Evaporator
Evaporators / water volume N./l 1 / 60 1 / 56 1 / 123 1 / 123 1 / 118
Max operating pressure bar 10,5 10,5 10,5 10,5 10,5
Condenser
Condensers / water volume N./l 1 / 13 1 / 15 1 / 15 1 / 15 2 / 26
Max operating pressure bar 10,5 10,5 10,5 10,5 10,5
Weight and dimensions
Standard unit shipping weight kg 1393 1410 1503 1503 2687 Standard unit operating weight kg 1470 1480 1650 1650 2840
Unit length mm 3435 3435 3435 3435 4305
Unit width mm 920 920 920 920 860
Unit height mm 1860 1860 1860 1860 1880
Note: (1) Nominal cooling capacity and power input are based on: 12/7 °C entering/leaving evaporator water temperature; 30/35 °C entering/leaving condenser water temperature.
Physical data ECOPLUS SE with HFC 134a
ECOPLUS unit size 110.2 120.2 133.2 146.2 165.2
Cooling capacity (1) kW 372,2 402,5 448,3 493,7 555,7
Power input (1) kW 93,1 101,4 115,1 129,0 150,2
McQuay StargateTM Screw compressor N. 2 2 2 2 2
Refrigerant circuits N. 2 2 2 2 2
Refrigerant charge HFC 134a kg 100 100 100 100 100
Min % of capacity reduction % 12,5 12,5 12,5 12,5 12,5
Evaporator
Evaporators / water volume N./l 1 / 113 1 / 113 1 / 173 1 / 168 1 / 168
Max operating pressure bar 10,5 10,5 10,5 10,5 10,5
Condenser
Condensers / water volume N./l 2 / 28 2 / 30 2 / 30 2 / 30 2 / 30
Max operating pressure bar 10,5 10,5 10,5 10,5 10,5
Weight and dimensions
Standard unit shipping weight kg 2697 2702 2757 2762 2762 Standard unit operating weight kg 2850 2860 2970 2970 2970
Unit length mm 4305 4305 4305 4305 4305
Unit width mm 860 860 860 860 860
Unit height mm 1880 1880 1880 1880 1880
Note: (1) Nominal cooling capacity and power input are based on: 12/7 °C entering/leaving evaporator water temperature;
30/35 °C entering/leaving condenser water temperature.
Physical data ECOPLUS XE with HFC 134a
ECOPLUS unit size 050.1 060.1 073.1 080.1 100.2
Cooling capacity (1) kW 186,4 223,3 276,5 306,7 366,3
Power input (1) kW 39,7 48,1 59,3 71,4 79,3
McQuay StargateTM Screw compressor N. 1 1 1 1 2
Refrigerant circuits N. 1 1 1 1 2
Refrigerant charge HFC 134a kg 50 50 50 50 100
Min % of capacity reduction % 25 25 25 25 12,5
Evaporator
Evaporators / water volume N./l 1 / 125 1 / 120 1 / 110 1 / 110 1 / 170
Max operating pressure bar 10,5 10,5 10,5 10,5 10,5
Condenser
Condensers / water volume N./l 1 / 22 1 / 25 1 / 25 1 / 25 2 / 44
Max operating pressure bar 10,5 10,5 10,5 10,5 10,5
Weight and dimensions
Standard unit shipping weight kg 1650 1665 1680 1680 2800 Standard unit operating weight kg 1800 1810 1820 1820 3020
Unit length mm 3435 3435 3435 3435 4305
Unit width mm 920 920 920 920 860
Unit height mm 1860 1860 1860 1860 1880
Note: (1) Nominal cooling capacity and power input are based on: 12/7 °C entering/leaving evaporator water temperature;
30/35 °C entering/leaving condenser water temperature.
Physical data ECOPLUS XE with HFC 134a
ECOPLUS unit size 110.2 120.2 133.2 146.2 165.2
Cooling capacity (1) kW 408,2 443,6 496,0 540,5 603,9
Power input (1) kW 87,2 95,0 104,8 114,4 137,7
McQuay StargateTM Screw compressor N. 2 2 2 2 2
Refrigerant circuits N. 2 2 2 2 2
Refrigerant charge HFC 134a kg 100 100 100 100 100
Min % of capacity reduction % 12,5 12,5 12,5 12,5 12,5
Evaporator
Evaporators / water volume N./l 1 / 285 1 / 285 1 / 280 1 / 280 1 / 280
Max operating pressure bar 10,5 10,5 10,5 10,5 10,5
Condenser
Condensers / water volume N./l 2 / 47 2 / 50 2 / 59 2 / 68 2 / 68
Max operating pressure bar 10,5 10,5 10,5 10,5 10,5
Weight and dimensions
Standard unit shipping weight kg 2945 2955 2975 2990 2990 Standard unit operating weight kg 3280 3290 3315 3340 3340
Unit length mm 4305 4305 4305 4305 4305
Unit width mm 860 860 860 860 860
Unit height mm 1880 1880 1880 1880 1880
Note: (1) Nominal cooling capacity and power input are based on: 12/7 °C entering/leaving evaporator water temperature;
30/35 °C entering/leaving condenser water temperature.
Electrical data ECOPLUS SE with HFC 134a
ECOPLUS unit size 050.1 060.1 073.1 080.1 100.2
Standard voltage (1) 400 V - 3f – 50 Hz
Nominal unit current (2) A 81 92 111 131 163
Max unit current (3) A 112 133 164 174 225
Max unit inrush current (4) A 288 288 288 288 349
Max unit current for wires sizing (5) A 124 147 165 190 248
ECOPLUS unit size 110.2 120.2 133.2 146.2 165.2
Standard voltage (1) 400 V - 3f – 50 Hz
Nominal unit current (2) A 174 184 202 221 260
Max unit current (3) A 246 266 299 329 345
Max unit inrush current (4) A 353 357 366 371 439
Max unit current for wires sizing (5) A 271 294 312 330 380
Note: (1) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%.
(2) Absorbed current referred to nominal condition: 12/7 °C entering/leaving evaporator water temperature; 30/35 °C entering/leaving condenser water temperature.
(3) Absorbed current referred to the following conditions: 14/9 °C entering/leaving evaporator water temperature;
45/50°C entering/leaving condenser water temperature.
(4) Inrush compressor’s current for unit with one compressor OR 75% of nominal absorbed current of compressor n°1 + inrush current of last compressor (n°2).
(5) Compressor FLA (Full Load Ampere).
Electrical data ECOPLUS XE with HFC 134a
ECOPLUS unit size 050.1 060.1 073.1 080.1 100.2
Standard voltage (1) 400 V - 3f – 50 Hz
Nominal unit current (2) A 79 89 103 124 157
Max unit current (3) A 108 128 154 162 215
Max unit inrush current (4) A 288 288 288 288 347
Max unit current for wires sizing (5) A 124 147 165 190 248
ECOPLUS unit size 110.2 120.2 133.2 146.2 165.2
Standard voltage (1) 400 V - 3f – 50 Hz
Nominal unit current (2) A 167 175 188 201 238
Max unit current (3) A 234 253 276 299 313
Max unit inrush current (4) A 351 354 359 363 430
Max unit current for wires sizing (5) A 271 294 312 330 380
Note: (1) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%.
(2) Absorbed current referred to nominal condition: 12/7 °C entering/leaving evaporator water temperature; 30/35 °C entering/leaving condenser water temperature.
(3) Absorbed current referred to the following conditions: 14/9 °C entering/leaving evaporator water temperature;
45/50°C entering/leaving condenser water temperature.
(4) Inrush compressor’s current for unit with one compressor OR 75% of nominal absorbed current of compressor n°1+
inrush current of last compressor (n°2).
(5) Compressor FLA (Full Load Ampere).
Sound pressure level ECOPLUS
Sound pressure level at 1 m from the in free field ( rif. 2 x 10-5 ) ECOPLUS
unit size 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz dBA
050.1 58 58 63,5 68,5 63 64 53 49,5 69,7
060.1 58 58 63,5 68,5 63 64 53 49,5 69,7
073.1 58 58 63,5 68,5 63 64 53 49,5 69,7
080.1 58 58 63,5 68,5 63 64 53 49,5 69,7
100.2 60 60 65,5 70,5 65 66 55 51,5 71,7
110.2 60 60 65,5 70,5 65 66 55 51,5 71,7
120.2 60 60 65,5 70,5 65 66 55 51,5 71,7
133.2 60 60 65,5 70,5 65 66 55 51,5 71,7
146.2 60 60 65,5 70,5 65 66 55 51,5 71,7
165.2 60 60 65,5 70,5 65 66 55 51,5 71,7
Note: Average sound pressure level rated in accordance to ISO 3744, free field semispheric conditions.
Sound pressure level ECOPLUS with Sound Proof Cabinet
Sound pressure level at 1 m from the in free field ( rif. 2 x 10-5 ) ECOPLUS
unit size 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz dBA
050.1 55,9 55,2 59,6 63,9 57,7 58,5 47,7 44,2 64,7
060.1 55,9 55,2 59,6 63,9 57,7 58,5 47,7 44,2 64,7
073.1 55,9 55,2 59,6 63,9 57,7 58,5 47,7 44,2 64,7
080.1 55,9 55,2 59,6 63,9 57,7 58,5 47,7 44,2 64,7
100.2 57,9 57,2 61,6 65,9 59,7 60,5 49,7 46,2 66,7
110.2 57,9 57,2 61,6 65,9 59,7 60,5 49,7 46,2 66,7
120.2 57,9 57,2 61,6 65,9 59,7 60,5 49,7 46,2 66,7
133.2 57,9 57,2 61,6 65,9 59,7 60,5 49,7 46,2 66,7
146.2 57,9 57,2 61,6 65,9 59,7 60,5 49,7 46,2 66,7
165.2 57,9 57,2 61,6 65,9 59,7 60,5 49,7 46,2 66,7
Note: Average sound pressure level rated in accordance to ISO 3744, free field semispheric conditions.
Sound pressure level correction factor for different distances
Distance (m) ECOPLUS
unit size 1 5 10 15 20 25
050.1 0 8,7 13,7 16,9 19,2 21,1
060.1 0 8,7 13,7 16,9 19,2 21,1
073.1 0 8,7 13,7 16,9 19,2 21,1
080.1 0 8,7 13,7 16,9 19,2 21,1
100.2 0 8,7 13,7 16,9 19,2 21,1
110.2 0 8,4 13,4 16,5 18,8 20,6
120.2 0 8,3 13,3 16,4 18,7 20,5
133.2 0 8,3 13,3 16,4 18,7 20,5
146.2 0 8,3 13,3 16,4 18,7 20,5
165.2 0 8,3 13,3 16,4 18,7 20,5
Standard ratings ECOPLUS SE 050.1 ÷ 100.2
ENTERING CONDENSER WATER TEMPERATURE °C
25 30 35 40 45
ECOPLUS unit size
Evaporator leaving water temp. (°C)
Cooling capacity (kW)
Power input (kW)
Cooling capacity (kW)
Power input
(kW)
Cooling capacity (kW)
Power input
(kW)
Cooling capacity (kW)
Power input
(kW)
Cooling capacity (kW)
Power input (kW) 4 157,6 36,5 151,1 41,2 144,3 46,2 137,4 51,7 130,1 57,6 5 162,4 36,8 155,8 41,5 148,9 46,5 141,8 52,0 134,4 58,0 6 167,4 37,0 160,6 41,8 153,6 46,8 146,4 52,4 138,7 58,3 7 172,3 37,3 165,5 42,1 158,4 47,2 151,0 52,7 143,3 58,7 8 177,5 37,6 170,5 42,3 163,3 47,5 155,6 53,0 147,8 59,0 050.1
9 182,6 37,8 175,5 42,6 168,1 47,8 160,5 53,4 152,4 59,4 4 191,5 44,0 183,6 49,6 175,5 55,7 166,9 62,3 157,7 69,4 5 197,3 44,3 189,4 50,0 181,1 56,1 172,3 62,7 162,9 69,8 6 203,4 44,7 195,3 50,4 186,7 56,5 177,8 63,1 168,3 70,2 7 209,5 45,0 201,2 50,7 192,5 56,9 183,4 63,5 173,8 70,6 8 215,7 45,3 207,2 51,1 198,4 57,3 189,1 63,9 179,2 71,1 060.1
9 222,0 45,6 213,3 51,5 204,4 57,7 194,9 64,4 184,9 71,5 4 240,7 56,3 230,4 63,3 219,8 70,8 208,5 79,0 196,6 87,8 5 248,2 56,8 237,7 63,8 226,8 71,4 215,4 79,6 203,1 88,4 6 255,9 57,3 245,1 64,4 234,0 72,0 222,3 80,2 209,8 89,0 7 263,6 57,8 252,8 64,9 241,3 72,6 229,4 80,8 216,6 89,6 8 271,5 58,3 260,4 65,5 248,7 73,2 236,5 81,4 223,5 90,3 073.1
9 279,5 58,8 268,2 66,1 256,3 73,8 243,8 82,1 230,5 91,0 4 267,2 66,3 255,5 72,1 243,5 78,7 230,9 86,1 217,7 94,4 5 275,8 67,5 263,4 73,2 251,2 79,7 238,3 87,1 224,8 95,3 6 284,5 68,6 271,8 74,3 259,0 80,8 245,9 88,1 232,1 96,3 7 293,5 69,8 280,4 75,4 266,9 81,9 253,6 89,2 239,5 97,4 8 304,8 71,3 289,2 76,6 275,3 83,0 261,4 90,3 247,1 98,5 080.1
9 314,3 72,6 300,6 78,2 283,9 84,2 269,3 91,4 254,8 99,6 4 317,9 73,2 304,7 82,5 291,1 92,6 276,9 103,5 262,0 115,4 5 327,6 73,7 314,3 83,1 300,3 93,2 285,8 104,2 270,8 116,1 6 337,7 74,2 324,0 83,7 309,8 93,9 295,1 104,9 279,7 116,8 7 347,8 74,7 333,9 84,3 319,5 94,5 304,5 105,6 288,8 117,5 8 358,2 75,3 344,0 84,9 329,3 95,2 313,9 106,3 298,1 118,3 100.2
9 368,8 75,8 354,3 85,5 339,3 95,9 323,6 107,0 307,5 119,0 Note: Nominal cooling capacity and power input are based on ∆T=5°C entering/leaving condenser water temperature;
evaporator fouling factor=0,0176 m2 °C/kW; condenser fouling factor=0,0440 m2 °C/kW.
Standard ratings ECOPLUS SE 110.2 ÷ 165.2
ENTERING CONDENSER WATER TEMPERATURE °C
25 30 35 40 45
ECOPLUS unit size
Evaporator leaving water temp. (°C)
Cooling capacity (kW)
Power input (kW)
Cooling capacity (kW)
Power input
(kW)
Cooling capacity (kW)
Power input
(kW)
Cooling capacity (kW)
Power input
(kW)
Cooling capacity (kW)
Power input (kW) 4 354,2 80,8 339,5 91,1 324,2 102,2 308,3 114,3 291,5 127,3 5 365,2 81,4 350,2 91,8 334,6 102,9 318,4 115,0 301,3 128,1 6 376,5 82,0 361,1 92,4 345,3 103,7 328,7 115,8 311,2 128,9 7 387,8 82,6 372,2 93,1 356,1 104,4 339,1 116,6 321,4 129,7 8 399,4 83,2 383,6 93,8 367,0 105,1 349,8 117,4 331,7 130,5 110.2
9 411,3 83,8 395,0 94,5 378,2 105,9 360,6 118,2 342,2 131,3 4 383,2 88,1 367,5 99,3 351,1 111,5 333,9 124,6 315,6 138,8 5 394,9 88,7 378,9 100,0 362,3 112,2 344,7 125,4 326,1 139,6 6 407,0 89,3 390,7 100,7 373,7 113,0 355,8 126,2 336,8 140,4 7 419,1 90,0 402,5 101,4 385,2 113,8 367,0 127,0 347,6 141,3 8 431,6 90,6 414,6 102,2 397,0 114,6 378,3 127,9 358,6 142,2 120.2
9 444,1 91,3 426,8 102,9 408,9 115,4 390,0 128,8 369,9 143,1 4 426,9 99,9 409,2 112,5 390,8 126,1 371,3 140,8 350,7 156,8 5 440,0 100,7 422,0 113,4 403,1 127,0 383,4 141,8 362,3 157,7 6 453,4 101,5 435,0 114,2 415,8 128,0 395,6 142,8 374,1 158,8 7 467,0 102,3 448,3 115,1 428,7 129,0 408,0 143,8 386,1 159,8 8 480,8 103,1 461,6 116,1 441,7 129,9 420,7 144,9 398,3 160,9 133.2
9 494,8 103,9 475,3 117,0 455,0 131,0 433,4 145,9 410,7 162,0 4 470,5 111,8 450,7 125,8 430,2 140,9 408,6 157,2 385,5 174,8 5 484,9 112,8 464,8 126,8 443,8 142,0 421,8 158,3 398,3 176,0 6 499,6 113,8 479,2 127,9 457,7 143,1 435,2 159,5 411,2 177,2 7 514,5 114,7 493,7 129,0 471,8 144,3 448,8 160,7 424,3 178,4 8 529,7 115,7 508,4 130,1 486,2 145,4 462,6 161,9 437,6 179,7 146.2
9 545,1 116,7 523,3 131,2 500,7 146,6 476,7 163,2 451,1 181,0 4 524,8 131,5 501,1 143,0 476,3 156,1 451,6 170,9 426,2 187,5 5 541,6 133,6 517,3 145,1 492,0 158,1 465,9 172,8 440,0 189,4 6 563,7 136,5 533,9 147,3 508,0 160,3 481,1 174,8 454,2 191,3 7 581,7 138,9 555,7 150,2 524,4 162,5 496,8 177,0 468,4 193,3 8 600,0 141,3 573,4 152,6 541,0 164,7 512,8 179,2 483,4 195,4 165.2
9 618,6 143,8 591,4 155,1 563,2 167,8 529,2 181,5 499,1 197,6 Note: Nominal cooling capacity and power input are based on ∆T=5°C entering/leaving condenser water temperature;
evaporator fouling factor=0,0176 m2 °C/kW; condenser fouling factor=0,0440 m2 °C/kW.
Standard ratings ECOPLUS XE 050.1 ÷ 100.2
ENTERING CONDENSER WATER TEMPERATURE °C
25 30 35 40 45
ECOPLUS unit size
Evaporator leaving water temp. (°C)
Cooling capacity (kW)
Power input (kW)
Cooling capacity (kW)
Power input
(kW)
Cooling capacity (kW)
Power input (kW)
Cooling capacity (kW)
Power input
(kW)
Cooling capacity (kW)
Power input (kW) 4 176,3 34,6 168,8 39,1 161,1 44,0 153,1 49,3 144,8 55,0 5 182,2 34,7 174,6 39,3 166,7 44,3 158,4 49,6 150,0 55,3 6 188,3 34,9 180,5 39,5 172,3 44,5 164,0 49,8 155,3 55,5 7 194,5 35,0 186,4 39,7 178,2 44,7 169,6 50,1 160,8 55,8 8 200,9 35,2 192,6 39,9 184,1 45,0 175,4 50,4 166,3 56,1 050.1
9 207,2 35,3 198,9 40,1 190,1 45,2 181,3 50,6 172,0 56,4 4 211,4 41,9 202,5 47,3 193,3 53,2 183,8 59,6 173,7 66,5 5 218,4 42,1 209,3 47,6 199,9 53,5 190,1 59,9 179,8 66,8 6 225,6 42,3 216,3 47,9 206,7 53,8 196,6 60,3 186,2 67,1 7 232,9 42,5 223,3 48,1 213,5 54,1 203,3 60,6 192,6 67,5 8 240,3 42,7 230,6 48,4 220,5 54,5 210,1 60,9 199,2 67,8 060.1
9 247,8 42,9 237,9 48,7 227,6 54,8 217,0 61,3 205,9 68,2 4 261,6 51,6 250,6 58,3 239,2 65,5 227,3 73,2 214,8 81,6 5 270,4 51,9 259,0 58,6 247,4 65,9 235,3 73,7 222,5 82,0 6 279,2 52,2 267,7 59,0 255,7 66,3 243,3 74,1 230,2 82,5 7 288,3 52,5 276,5 59,3 264,3 66,7 251,5 74,5 238,1 82,9 8 297,5 52,8 285,4 59,7 273,0 67,1 260,0 75,0 246,3 83,4 073.1
9 306,9 53,0 294,6 60,1 281,8 67,5 268,5 75,4 254,5 83,9 4 291,0 63,1 278,8 68,3 266,0 74,2 252,8 80,9 239,0 88,4 5 300,4 64,2 287,9 69,3 275,0 75,2 261,5 81,8 247,3 89,3 6 309,9 65,2 297,2 70,3 283,9 76,1 270,2 82,7 255,7 90,2 7 319,7 66,3 306,7 71,4 293,2 77,1 279,0 83,7 264,4 91,1 8 329,6 67,4 316,4 72,4 302,5 78,2 288,2 84,7 273,2 92,1 080.1
9 339,7 68,6 326,1 73,5 312,1 79,3 297,4 85,7 282,2 93,1 4 346,6 68,9 332,1 78,1 317,0 87,8 301,5 98,4 285,4 109,8 5 358,0 69,3 343,2 78,5 327,8 88,3 312,0 98,9 295,6 110,3 6 369,8 69,6 354,6 78,9 338,9 88,8 322,7 99,4 305,9 110,8 7 381,7 69,9 366,3 79,3 350,2 89,2 333,6 99,9 316,5 111,4 8 394,0 70,2 378,1 79,7 361,7 89,7 344,7 100,4 327,3 112,0 100.2
9 406,4 70,5 390,2 80,0 373,5 90,2 356,2 101,0 338,4 112,5 Note: Nominal cooling capacity and power input are based on ∆T=5°C entering/leaving condenser water temperature;
evaporator fouling factor=0,0176 m2 °C/kW; condenser fouling factor=0,0440 m2 °C/kW.
Standard ratings ECOPLUS XE 110.2 ÷ 165.2
ENTERING CONDENSER WATER TEMPERATURE °C
25 30 35 40 45
ECOPLUS unit size
Evaporator leaving water temp. (°C)
Cooling capacity (kW)
Power input
(kW)
Cooling capacity (kW)
Power input (kW)
Cooling capacity (kW)
Power input (kW)
Cooling capacity (kW)
Power input
(kW)
Cooling capacity (kW)
Power input
(kW) 4 386,1 75,9 370,0 85,9 353,3 96,7 335,9 108,3 317,8 120,8 5 399,0 76,2 382,4 86,4 365,3 97,2 347,6 108,8 329,1 121,4 6 412,2 76,6 395,2 86,8 377,7 97,7 359,6 109,4 340,6 122,0 7 425,5 76,9 408,2 87,2 390,3 98,2 371,7 110,0 352,5 122,6 8 439,2 77,3 421,5 87,7 403,1 98,7 384,3 110,6 364,5 123,2 110.2
9 453,1 77,6 435,0 88,1 416,3 99,3 397,0 111,2 376,9 123,8 4 419,9 82,7 402,5 93,6 384,5 105,3 365,8 118,0 346,0 131,6 5 433,7 83,1 415,9 94,1 397,6 105,9 378,4 118,6 358,2 132,2 6 447,8 83,4 429,6 94,5 410,9 106,4 391,3 119,2 370,7 132,9 7 462,3 83,8 443,6 95,0 424,5 107,0 404,5 119,8 383,5 133,5 8 476,9 84,2 457,9 95,5 438,3 107,5 417,9 120,4 396,4 134,2 120.2
9 491,9 84,6 472,5 96,0 452,4 108,1 431,6 121,0 409,7 134,9 4 469,4 91,2 450,0 103,3 430,0 116,2 409,2 130,2 387,3 145,2 5 484,8 91,6 465,0 103,8 444,7 116,8 423,3 130,8 401,0 145,9 6 500,7 92,1 480,4 104,3 459,5 117,4 437,8 131,5 415,0 146,6 7 516,8 92,5 496,0 104,8 474,7 118,0 452,5 132,2 429,2 147,3 8 533,1 92,9 512,0 105,3 490,2 118,6 467,5 132,8 443,7 148,0 133.2
9 549,8 93,3 528,3 105,8 506,0 119,2 482,9 133,5 458,6 148,8 4 511,7 99,6 490,9 112,7 469,5 126,9 447,1 142,1 423,6 158,6 5 528,4 100,0 507,2 113,2 485,2 127,5 462,5 142,8 438,5 159,3 6 545,4 100,4 523,8 113,8 501,4 128,1 478,0 143,5 453,5 160,1 7 562,7 100,9 540,5 114,4 517,8 128,8 494,0 144,2 469,0 160,8 8 580,3 101,3 557,7 114,9 534,5 129,4 510,2 144,9 484,6 161,6 146.2
9 598,3 101,7 575,4 115,4 551,6 130,1 526,7 145,7 500,6 162,4 4 571,0 121,8 547,8 132,0 523,6 143,6 498,5 156,8 472,2 171,6 5 590,1 123,8 565,6 133,8 540,9 145,3 515,2 158,4 488,4 173,1 6 610,1 125,9 584,1 135,7 558,6 147,0 532,4 160,0 505,0 174,7 7 630,1 128,0 603,9 137,7 576,6 148,9 549,7 161,8 521,9 176,3 8 650,6 130,2 623,9 139,8 595,9 150,9 567,5 163,6 539,0 178,0 165.2
9 671,6 132,4 644,2 141,9 615,8 152,9 585,9 165,5 556,6 179,8 Note: Nominal cooling capacity and power input are based on ∆T=5°C entering/leaving condenser water temperature;
evaporator fouling factor=0,0176 m2 °C/kW; condenser fouling factor=0,0440 m2 °C/kW.
Evaporator pressure drop
ECOPLUS SE/XE 050.1 ÷÷÷÷ 165.2
10 20 30 40 50
9 20
30 40 50 60 70 80 90 100
7 8 5 6
050.1 SE - 060.1 SE 073.1 SE - 080.1 SE - 050.1 XE - 060.1 XE 100.2 SE 110.2 SE - 120.2 SE 133.2 SE
073.1 XE 080.1 XE 146.2 SE - 165.2 SE - 100.2 XE 110.2 XE - 120.2 XE 133.2 XE - 146.2 XE - 165.2 XE
2 3 4
1 10
Water flow rate (l/s)
P re s s u re d ro p ( k P a )
073.1 XE - 080.1 XE
Condenser pressure drop
ECOPLUS SE/XE 050.1 ÷÷÷÷ 165.2
Portata acqua (l/s)
P e rd it a d i c a ri c o ( k P a )
050.1 SE 060.1 – 073.1 – 080.1 SE 050.1 XE 060.1 XE 100.2 SE 073.1 – 080.1 XE 110.2 SE 120.2 – 133.2 – 146.2 – 165.2 SE 100.2 XE 110.2 XE 120.2 XE 133.2 XE 146.2 – 165.2 XE
Water flow rate (l/s)
P re s s u re d ro p ( k P a )
Partial heat recovery ratings ECOPLUS 050.1 ÷ 165.2
Entering condenser water temperature °C
30 35 40 45 50
Heating capacity
Heating capacity
Heating capacity
Heating capacity
Heating capacity
Unit
Leaving desuper-heaters water temperature °C
(kW) (kW) (kW) (kW) (kW)
45 21 22 23 24 25
50 10 18 22 23 24
050.1
55 6 11 17 20 21
45 22 29 30 31 32
50 17 23 28 29 30
060.1
55 10 16 24 26 27
45 35 36 37 38 39
50 28 34 35 36 37
073.1
55 19 30 31 32 33
45 48 43 44 45 46
50 39 45 42 43 44
080.1
55 28 44 38 38 39
45 42 44 46 48 50
50 20 36 44 46 48
100.2
55 12 22 34 40 42
45 43 51 53 55 57
50 27 41 50 52 54
110.2
55 16 27 41 46 48
45 44 58 60 62 64
50 34 46 56 58 60
120.2
55 20 32 48 52 54
45 57 65 67 69 71
50 45 57 63 65 67
133.2
55 29 46 55 58 60
45 70 72 74 76 78
50 56 68 70 72 74
146.2
55 38 60 62 64 66
45 96 86 88 90 92
50 78 90 84 86 88
165.2
55 56 88 76 76 78
Note: (1) Leaving evaporator water temperature 7°C - ∆T 5°C; ∆T condenser water temperature 5°C.
Heating capacity correction factors for different evaporator leaving water temp.
Evaporator leaving water temp. 9 8 7 6 5 4
Heating capacity correction factor 1,062 1,029 1,000 0,973 0,941 0,914
Partial heat recovery pressure drop ECOPLUS SE/XE 050.1 ÷÷÷÷ 165.2
