AERMEC NRL Technical Manual Installation Maintenance

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CHILLERS- Technical manual - installation - maintenance

° COMPACT L COMPACT LOW NOISE H STANDARD COMPACT HEAT PUMP HL SILENCED COMPACT HEAT PUMP

NRL

INRLPY. 02.10 4086916_01

Dear Customer, Thank you for choosing AERMEC. It is the fruit of many years of experience and special design studies and has been made of the highest grade materials and with cutting edge technology. In addition, all our products bear the EC mark indicating that they meet the requirements of the European Machine Directive regarding safety. The standard of quality is permanently being monitored and AERMEC products are therefore a synonym for Safety, Quality and Reliability.

The data may undergo modifications considered necessary for the improvement of the product, at any time and without the obligation for any notice thereof.

Thank you again.

AERMEC S.p.A

AERMEC S.p.A. reserves the right at all times to make any modification for the improvement of its product and is not obliged to add these modification to machines of previous manufacture that have already been delivered or are being built.

Summary

16.1. Pressure drop.............................................................. 28

1. General warnings ........................................................ 6

1.1. Conserving the documentation ................................ 6

1.2. Safety precautions and installation .......................... 6

2. Description and choice of the unit ...........................7

2.1. Versions available .......................................................7

2.2. Versions available .......................................................7

2.3. Conﬁ gurator ................................................................. 8

3. Chiller circuit................................................................. 9

3.1. Frame and fans............................................................9

3.2. Hydraulic components ............................................... 9

3.3. Safety and control components ............................. 10

3.4. Electrical components .............................................. 10

4. Accessories ................................................................11

5. Starting current reduction in presence of dre

accessories ................................................................. 13

6. Technical data ..........................................................13

6.1. Technical data versions [°-l] ..................................... 13

7. Technical data ..........................................................15

7.1. Technical data versions [h-hl] .................................. 15

8. Technical data ..........................................................17

8.1. Technical data versions [c] ...................................... 17

9. Operating limits .......................................................... 18

9.1. Cooling mode ............................................................18

9.2. Heating mode ........................................................... 18

9.3. Condenser unit operation ........................................ 18

10. Correction factors ..................................................... 19

10.1. Cooling capacity and input power ....................... 19

10.2. Heating capacity and input power ........................ 20

10.3. For ∆t different from the rated value....................... 20

10.4. Fouling factors ...........................................................20

17. M

18. Sound data ................................................................ 30

19. Selection and place of installation .........................32

20. Positioning ..................................................................32

20.1. Minimum technical spaces (mm)............................ 32

20.2. Dimensional tables ....................................................33

21. Weight distribution and center of gravity ............... 36

21.1. Nrl ° - l 2800 - 3000 - 3300 -3600 ................................36

21.2. Nrl ° - l - h 2800 - 3000 - 3300 -3600 ........................... 38

22. Hydraulic circuit ......................................................... 40

22.1. External hydraulic circuit recommended ............... 40

22.2. System load ............................................................... 40

22.3. Emptying the system ................................................. 40

23. Electrical wirings ........................................................ 43

23.1. Recommended section of electric cables ............ 43

23.2. Connection to the power supply ............................ 44

23.3. Electrical power connection ...................................44

23.4. Auxiliary connections at the user/installer expense 44

24. Control and ﬁ rst start-up ...........................................45

24.1. Preparation for commissioning ................................ 45

24.2. First commissioning of the machine ........................ 45

24.3. Season changeover.................................................. 45

25. Functioning characteristics ...................................... 46

25.1. Cooling set point ....................................................... 46

25.2. Heating set point ....................................................... 46

25.3. Compressor start delay ............................................. 46

25.4. Circulation pump ......................................................46

25.5. Anti-freeze alarm .......................................................46

25.6. Water ﬂ ow rate alarm ............................................... 46

26. Regular maintenance ............................................... 46

easurements of the chillers lines versions (c) .......... 29

11. Pressure drops ............................................................21

11.1. Total pressure drops (°-l) ...........................................21

11.2. Total pressure drop (h-hl) .......................................... 22

12. Accumulator ..............................................................24

12.1. Maximum/minimum water content in the system 24

13. Capacity controls ...................................................... 25

14. Glycol .......................................................................... 26

14.1. How to read the glycol curves ................................26

15. Desuperheater ........................................................... 27

15.1. Pressure drops ............................................................ 27

16. Total recovery ............................................................28

27. Extraordinary maintenance ..................................... 46

AERMEC S.p.A. 37040 Bevilacqua (VR) Italy – Via Roma, 996 Tel. (+39) 0442 633111 Telefax 0442 93730–(+39) 0442 93566 www.aermec.com - info@aermec.com

NRL

SERIAL NUMBER

CONFORMITY DECLARATION We, the undersigned, declare on our own exclusive responsibility that the object in

question, so defined:

NAME NRL

TYPE AIR - WATER CHILLER/HEAT PUMP

MODEL

and to which this declaration refers, complies with the following standardised regulations:

CEI EN 60335-2-40 Safety regulation regarding electric heat pumps, air conditioners and dehumidifiers

CEI EN 61000-6-1 CEI EN 61000-6-3

CEI EN 61000-6-2 CEI EN 61000-6-4

EN378 Refrigerating system and heat pumps - Safety and environmental requirements

UNI EN 12735 UNI EN 14276

thus meeting the essential requisites of the following directives:

- LV Directive: 2006/95/EC

- Electromagnetic Compatibility Directive 2004/108/EC

- Machine Directive 2006/42/EC

- PED Directive relating to pressure equipment 97/23/EC

In compliance with Directive 97/23/EC, the product meets the Total Quality Warranty procedure (module H) with certificate no. 06/270-QT3664 Rev.3 issued by the notified body no. 1131 CEC via Pisacane 46 Legnano (MI) - Italy

Electromagnetic immunity and emission in residential environment

Electromagnetic immunity and emission in industrial environment

Round welding-free copper pipes for air conditioning and cooling Pressure equipment for refrigerating systems and heat pumps

The person authorized to compile the technical file is: Massimiliano Sfragara - 37040 Bevilacqua (VR) Italy–Via Roma, 996

Bevilacqua 28/12/2009

Marketing Director

Signature

1. GENERAL WARNINGS

Standards and directives to be followed in the design and manufacture of the unit:

Safety system: Machine Directive

2006/42/EC

Low voltage directive

LVD 2006/95/EC

Electromagnetic compatibility directive

EMC 2004/108/EC

Pressure containers directive

D 97/23/CE EN 378, UNI EN 14276 Electrical part: EN 60204-1

Protection rating

IP 24

Acoustic part:

SOUND POWER (EN ISO 9614-2) SOUND PRESSURE (EN ISO 3744) Certifications: Eurovent Refrigerant GAS: This unit contains fluorinated greenhouse gases covered by the Kyoto Protocol. Maintenance and disposal operations must be only carried out by qualified staff. R410A GWP=1900

The AERMEC NRL units are built according to the recognised standards and safety regulations. They have been designed for air conditioning and production of hot water and must be used for this purpose in accordance with their performance characteristics. be contractually liable for any damage to people, animals or objects, for failures caused by errors during installation, adjustment and maintenance or incorrect use. All the uses not expressly indicated in this manual are not allowed.

The company shall not

or non-contractually

1.1. CONSERVING THE DOCUMENTATION

Deliver the following instructions plus all the complementary documentation to the system user, who shall be responsible for keeping the instructions so that they are always available when needed. Read carefully this chapter; all the procedures must be carried out by qualified personnel according to the regulations in force in the different countries(M.D. 329/2004). It must be installed in such a way as to make all maintenance and/or repair operations possible (SEE INSTALLER SECTION page 33). The warranty of the device does not in any case cover costs owing to ladder trucks, lifts or other lifting systems that may be required in order to carry out the interventions under guarantee. Do not modify or tamper the with chiller as this may cause dangerous situations and the manufacturer shall not be liable for any damages. The warranty shall not

be valid if the indications mentioned above are not observed.

1.2. SAFETY PRECAUTIONS AND INSTALLATION

− the chiller must be installed by an

authorised and qualified technician, in compliance with the national legislation in force in the country of destination (MD 329/2004).

Aermec shall not be held responsible for any damage whatsoever resulting from the noncompliance with these instructions.

− Before starting any kind of work, it is

necessary TO READ CAREFULLY THE INSTRUCTIONS, AND TO PERFORM THE SAFETY CHECKS TO AVOID ANY RISKS. All the personnel in charge must know the operations and the risks that may arise when all the unit installation operations begin.

INRLPY. 02.10 4086916_01

2. DESCRIPTION AND CHOICE OF THE UNIT

The NRL is a set of devices designed to produce cold water for technological systems. ACCORDING TO

several coolingand hydraulic circuits, and according to the version, they can have desuperheaters, total recovery, only pumping unit or accumulator with pumping

unit.

The presence of more than one scroll type compressor allows the NRL chillers various capacity controls of the cooling capacity. By means of a microprocessor, the electronic regulation controls and manages all the components and working parameters of the unit; an internal memory registers the working conditions in the moment when an alarm condition arises, in order to visualise it on the display.

2.1. VERSIONS AVAILABLE

− “COOLING ONLY” (° - L)

maximum outside temperature allowed 42°C;

− processed water temperature 18°C;

− “HEAT PUMP” (H - HL)

in cooling mode, the operating limits arrive at a maximum external air temperature of 42°C;

− processed water temperature 18°C;

− in heating mode, the operating

limits arrive at a maximum external air temperature of 42°C;

−

processed water temperature 50°C;

− NRLH do not offer the following

configurations:

−

YH (with processed water lower than

4°C

)

−

HC (condensing heat pump)

the size of several

2.2. VERSIONS AVAILABLE

• HEAT RECOVERY UNITS with desuperheater inserted in series (D).

− WARNING: in the heat pump versions, the desuperheater must be intercepted during heat pump operation: otherwise, the guarantee will no longer be considered valid.

• Total heat recovery (T) With plate-type exchanger inserted in parallel with the coils

−

Both versions (D - T) use:

− a hot gas bypass device upstream from the evaporator

− Water filter before the recovery exchanger.

The units with desuperheater (D) or total recovery (T) are not available in the versions:

− YD

− YT

−

XT (only for temperature lower than

−

XD (only for temperature lower than

The NRL-C condensing units are not available in the versions:

− HC (condensing heat pump)

− TC (condensing units with total recovery)

− DC (condensing units with desuperheater)

4°C

)

−

Mechanical thermostatic valve (Y):

− version Y: this is the version that

allows you to produce chilled water below the standard value of +4°C, to a minimum of -6°C. For lower

values, contact the company headquarters.

Danger!

The refrigerant circuit is under steam. High temperatures are also possible. The unit may only be opened by a service technician (SAT) or by an authorised technician. The operations in the cooling circuit can only be performed by a qualified refrigeration technician.

GAS R410A

The chiller is delivered with the correct refrigerant load.The R410A is free of chlorine, it is not flammable and does not harm the ozone layer. However, any interventions are always competence of the technical service assistance (SAT) or an authorised technician.

INRLPY. 02.10 4086916_01

2.3. CONFIGURATOR

1.2.3 4.5.6 7 8 9 10 11 12 13 14 15, 16

NRL280 0°°°°°°°00

field

1, 2, 3 Code NRL

4, 5, 6 Size

280, 300, 330, 360

7 Compressors

0 Standard compressor

8 Thermostatic valve

Standard mechanical thermostatic valve (to +4°C)

Y Low water temperature mechanical thermostatic valve (to -6°C) x

Electronic thermostatic valve also for low water temperature (to -6°C)

9 Model

° Cooling only C Condenser unit H Heat pump

10 Heat recovery

° Without recovery units D Desuperheater T Total recovery

11 Version

° L

Compact version

Compact low noise version

12 Coils

° Made of aluminium R Made of copper S Tinned copper V Varnished

13 Fans

° Standard M J

Enlarged

Inverter

14 Fuel feed

° 400V-3N-50Hz with thermomagnetic switches 1 230V-3-50Hz with thermomagnetic switches 2 500V-3-50Hz with thermomagnetic switches

15, 16 Accumulation

00 01 02 03 04 05 06 07 08 09 10 P1

Without water accumulator

Low-head water accumulator and single pump

Low-head water accumulator and reserve pump

High-head water accumulator and single pump

High-head water accumulator and reserve pump

Water accumulator with holes for supplementary electric heater, low head and single pump

Water accumulator with holes for supplementary electric heater, low head and reserve pump

Water accumulator with holes for supplementary electric heater, high head and single pump

Water accumulator with holes for supplementary electric heater, high head and reserve pump

Double hydraulic ring

Double hydraulic ring with supplementary electric heater

Without water accumulator, with low-head pump

P2 Without water accumulator, with low-head pump and reserve pump P3 P4

Without water accumulator, with high-head pump

Without water accumulator, with high-head pump and reserve pump

WARNING NB: for heat pump versions, M fans are not available, only ° and J.

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3. CHILLER CIRCUIT

Compressors

High efﬁ ciency scroll-type hermetic compressors, assembled on elastic antivibration supports, driven by a 2-pole electric motor with internal thermal protection of the electric heater casing included as standard. The heater is automatically powered when the unit stops, provided that the unit is kept under tension.

Air side heat exchanger High efﬁ ciency device made of copper pipes and aluminium blades locked into place via mechanical pipe expansion.

Water side heat exchanger

Of the plate-type (AISI 316), externally insulated with closed cell material to reduce thermal dispersion. Fitted, as standard, with

antifreeze heater.

LIQUID SEPARATOR (HEAT PUMP ONLY)

Located on the suction point of the compressor, to protect against any ﬂ owback of liquid refrigerant, ﬂ ooded start-ups, operation in the presence of liquid.

Liquid accumulation (only for heat pumps and total recovery)

To compensate the difference in volume between the ﬁ nned coil and the plate-type exchanger, holding back excess liquid.

Filter drier

Of the mechanical type, made of ceramics and hygroscopic material able to trap impurities and any traces of humidity in the chiller circuit.

Sight glass

For checking the refrigerating gas load and any humidity in the refrigerating circuit.

Thermostatic valve

The mechanical type valve, with outside equaliser on the evaporator outlet, modulates the gas ﬂ ow to the evaporator on the basis of the thermal load, in such a way as to ensure the proper degree of overheating of the intake gas.

Electronic valve (optional)

Liquid and discharge taps (cooling-only versions)

They allow the refrigerant to be cut off during extraordinary maintenance.

Solenoid valve

The valve closes when the compressor turns off, preventing the ﬂ ow of refrigerant gas towards the evaporator.

Bypass solenoid valve (only for heat pumps)

To bypass the thermostat-controlled valve during the defrosting cycle.

Cycle reversing valve (heat pump only)

Inverts the ﬂ ow of refrigerant when operation is switched between summer/winter, and during defrosting cycles.

Non-return valve

Allows the ﬂ ow of refrigerant in one direction only.

Desuperheater (only upon request)

Of the plate-type (AISI 316), externally insulated with closed cell material to reduce thermal dispersion.

Total recovery (only upon request)

Of the plate-type (AISI 316), externally insulated with closed cell material to reduce thermal dispersion.

3.1. FRAME AND FANS

Fan unit

Screw type, statically and dynamically balanced. The electric fans are protected electrically with thermomagnetic switches and mechanically with metal anti-intrusion grilles, in accordance with the standard CEI EN 60335-2-40.

Enlarged fans (M)

These offer a useful head to overcome the pressure drops in the system

Inverter fans (J)

Load-bearing structure

Made of hot-galvanised steel sheet of a suitable thickness, varnished with polyester powders able to resist atmospheric agents over time.

3.2. HYDRAULIC

Circulation pump

Depending on the

characteristics of

the pump chosen, it

offers a useful head

to overcome the pressure drops in the system. There is also the

possibility to have a reserve pump. The reserve pump is managed by the electronic card.

Flow switch (installed as standard)

This checks that the water is circulating. If this

is not the case, it shuts down the unit.

Water ﬁ lter(installed as standard)

Allows you to block and eliminate any

impurities in the hydraulic circuits. Inside, it

has a ﬁ ltering mesh with holes not greater

than one millimetre. It is essential for avoiding

serious damage to the plate-type exchanger.

COMPONENTS

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Accumulator tank

In stainless steel, with a 700-litre capacity. In order to reduce the thermal dispersion and eliminate the phenomenon of the formation of condensation, it is insulated with polyurethane material of a suitable thickness. One antifreeze electric heater of 300W (down to -20°C outside temperature and tank water temperature 5°C) assembled as standard and commanded from the card via an antifreeze sensor inserted in the tank.

Drain valve (all versions)

Of the automatic type, assembled on the upper part of the hydraulic system; it releases any air bubbles that may be present in the system.

Filling assembly (versions with accumulator)

This has a pressure gauge showing the pressure in the system.

Expansion tank (versions with accumulator)

Of the membrane type, with nitrogen precharge.

Hydraulic circuit safety valve (only for versions with pump or with accumulator)

Calibrated to 6 bar and with ductable discharge, it releases overpressure in the event of abnormal working pressure levels.

3.3. SAFETY AND CONTROL COMPONENTS

Low pressure switch (BP)

− Cooling-only (L)

Of fixed calibration, located on the low pressure side of the refrigerating circuit, it stops the operation of the compressor in the event of anomalous work pressures.

High pressure switch (AP)

− Cooling-only (L)

− Heat pump (HL)

With fixed calibration, placed on the high pressure side of the chiller circuit, it shuts down compressor operation in the case of abnormal operating pressure.

Low pressure transducers (TP2)

− Cooling-only (L) “accessory”

− Heat pumps (HL) "standard"

Placed on the high pressure side of the chiller circuit, it communicates to the control card the operating pressure, sending a pre-alarm in case of abnormal pressure.

High pressure transducer (TP3)

− Standard for all the versions

Placed on the high pressure side of the chiller circuit, it communicates to the control card the operating pressure, sending a pre-alarm in case of abnormal pressure.

Anti-freeze heater (installed as standard)

Its operation is commanded by the antifreeze probe located in the plate-type evaporator. It is activated when the water temperature is +3°C, and deactivated when the water temperature is +5°C. The dedicated software in the regulation card manages the heater.

Refrigerating circuit safety valve

This intervenes by releasing overpressure in the event of abnormal working pressure levels.

- Calibrated at 45 bar on the HP branch

- Calibrated at 30 bar on the BP branch

Evaporator antifreeze heating element

3.4. ELECTRICAL COMPONENTS

ELECTRICAL PANEL

Contains the power section and the management of the controls and safety devices. In accordance with standards: CEI EN 61000-6-1 CEI EN 61000-6-2 CEI EN 61000-6-4 (immunity and electromagnetic emissions for the industrial sector). and Directives EMC 89/336/EEC and 92/31/EEC concerning electromagnetic compatibility, Low Voltage Directive LVD 2006/95/EC.

DOOR LOCK KNIFE SWITCH

IT is possible to access the electrical panel by disconnecting the voltage, then using the opening lever of the panel itself. This lever can be blocked with one or more padlocks during maintenance, in order to prevent the machine being powered up accidentally.

CONTROL KEYPAD

Provides full control functions. For a detailed description refer to the user manual.

Remote control panel

This allows the chiller command operations to be given from a distance.

compressor protection thermomagnetic switch; fan protection thermomagnetic switch; auxiliary protection thermomagnetic switch; discharge gas temperature control thermostat.

(only for heat pumps)

ELECTRONIC REGULATION MICROPROCESSOR CARD

Consisting of a management/control card and a visualisation card.

• Functions carried out:

− adjustment of water temperature at evaporator inlet, with thermostat control for up to 4 levels and integralproportional fan speed control (with DCPX accessory);

− compressor start-up delay;

− compressor sequence rotation;

− count of compressor work hours;

− start/stop;

− reset;

− permanent alarms memory;

− autostart after voltage drop;

− multi-lingual messages;

− operation with local or remote control.

• Machine status display:

− ON/OFF compressors;

− alarms summary.

• Alarm management:

− high pressure;

− flow switch;

− low pressure;

− anti-freeze;

− compressor overload;

− fan overload;

− pump overload.

• Display of the following parameters:

− water inlet temperature;

− accumulator temperature;

− water outlet temperature;

− delta T;

− high pressure;

− low pressure;

− waiting time for restart;

− alarms visualisation.

• Settings:

a) without password:

cooling set; total differential.

b) with password:

antifreeze set;

low pressure exclusion time; display language; access code.

For further information, refer to the user manual.

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4. ACCESSORIES

280 300 330 360

AER485

°• L•

H•

HI •

AVX (00)

785 791 791 791

AVX (01-02-03-04)

° L

AVX (P1-P2-P3-P4)

° L

786 792 792 792

787 793 793 793

260x2 260 350 350x2 350x2

Through this accessory it is possible to connect the unit with BMS supervision systems with electrical standard RS 485 and MODBUS type protocol.

•••

Sprung anti-vibration supports. Select the model using the compatibility table.

Protect the external coils from accidental knocks.

PGS

° L •

H •

HI •

AERWEB30

° • L •

H •

HI •

Card to be inserted in the electronic card of the unit. Allows you to programme two time bands per day (two switch on/off cycles) and to have differentiated programming for each day of the week.

•

AERWEB30: the AERWEB device allows the remote control of a chiller from a common PC, using a serial connection. Using additional modules, the device allows the chiller to be controlled via the telephone line, using the AERMODEM accessory, or via the GSM network, using the AERMODEM GSM accessory. AERWEB can pilot up to 9 chillers, but each of these must be equipped with accessory AER485 or AER485P2.

•••

INRLPY. 02.10 4086916_01

280 300 330 360

Current rephaser. Parallel connection with the motor makes the reduction

REF

° L

°78798181 L standard

H 78 80 82 82

HI standard

°78808282 L standard

RIFNRL2800 RIFNRL3000 RIFNRL3300 RIFNRL3600

DCPX

DCPX M

DUALCHILLER

°• L•

H•

HI •

MULTICHILLER

°• L•

H•

HI •

TRX1

°• L•

H•

HI •

PRM 1

° •--- L •---

H •---

HI •---

PRM 2

° - L -

H -

HI -

of input current possible. It can only be installed when the machine is being made and must therefore be specified when the order is placed.

This accessory allows correct operation with outside temperatures below 10°C and down to -10°C. It is made up of an electronic regulation card that varies the fan rpm on the basis of the condensation pressure (read by the high pressure transducer), to keep it sufficiently high for the proper functioning of the unit. It also allows correct heating operation with outside temperatures greater than 30°C and up to 42°C.

DCPX only for configurations with enlarged fans (M).

Simplified control system to switch on and off, and command, two chillers (using Aermec GR3 command) in a single system, as if they were a single unit.

•••

Control system to switch the individual chillers on and off, and command them, in a system in which several units are installed in parallel, always ensuring a constant delivery to the evaporators.

•••

The water accumulators with holes and supplementary electric heaters leave the factory with plastic protection caps. Before loading the system, if the installation of an electric heater is not envisaged it is compulsory to replace the plastic caps with the special TRX1.

•••

FACTORY-ASSEMBLED ACCESSORY. Pressure switch with manual reset (using a tool), electrically connected in series to the high pressure switch on the compressor delivery pipe.

•••

[1] The useful heads refer to the nominal air flow rate

* The water connections are all of the Victaulic type

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5. STARTING CURRENT REDUCTION IN PRESENCE OF DRE ACCESSORIES

MODEL SINGLE CIRCUIT DOUBLE CIRCUIT THREE-CIRCUIT FOUR-CIRCUIT FIVE-CIRCUIT SIX-CIRCUIT

CURRENT REDUCTION

-30% -26% -22% -20% -18% -16%

6. TECHNICAL DATA

6.1. TECHNICAL DATA VERSIONS [°-L]

COOLING 2800 3000 3300 3600

Cooling output kW

Total input power kW

Water flow rate l/h

Total pressure drops kPa

Energy indices

EER W/W

ESEER W/W

ELECTRICAL DATA

Fuel feed A

Input current A

Maximum current A

Peak current A

COMPRESSORS (SCROLL)

Number/Circuit

FANS (AXIAL)

Quantity no.

Air ﬂ ow rate m³/h

Input power kW

Input current A

Useful heads

FANS (ENLARGED M)

Quantity no.

Input power kW

Input current A

Useful heads

[1]

no./

no.

676 750 824 898

L 604 672 733 786

284 322 350 374

° L 314 354 384 416

116270 129000 141730 154460

° L 103890 115580 125900 135190 °

73.0 78.6 59.5 58.8

L 59.1 63.8 47.9 45.9

2.38 2.33 2.35 2.40

L 1.92 1.90 1.90 1.89 ° 3.76 3.68 3.72 3.79 L 3.65 3.61 3.62 3.59

° L

498 572 610 638

° L 538 616 656 696 °

580 638 716 782

L °

789 847 984 1050

10/4 12/4 12/4 12/4

8 8 12 12

L °

154000 152000 216600 212400

L 115400 121600 151620 148680 ° 10.0 10.0 15.0 15.0 L 7.5 7.5 11.3 11.3

21.6 21.6 32.4 32.4

° L 16.2 16.2 24.3 24.3

45 45 40 40

° L----

8 8 12 12

L °

13.9 13.9 20.9 20.9

L ---- ° 29.6 29.6 44.4 44.4 L ---- ° 45 45 40 40 L----

400V - 3 - 50 Hz

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HYDRAULIC CIRCUIT

Accumulator capacity L

Accumulator antifreeze heater

Expansion tank capacity No./l

LOW-HEAD CIRCULATION PUMP

Input power KW

Input current A

Useful head kPa

HIGH-HEAD CIRCULATION PUMP

Input power KW

Input current A

Useful head kPa

SOUND DATA [1] The useful heads refer to the chiller operation

Sound power (1) dBA

Sound pressure (2) dBA

DIMENSIONS

Height mm

Width mm

Depth mm

Weight when empty kg

° L °

A E

2800 3000 3300 3600

° 9.6 9.6 13.0 13.0 L 9.6 9.6 13.0 13.0 ° 16.3 16.3 22.0 22.0 L 16.3 16.3 22.0 22.0 ° 102 88 109 99 L 133 116 134 130

2800 3000 3300 3600

° 17.2 17.2 24.7 24.7 L 17.2 17.2 24.7 24.7 ° 29.2 29.2 42.4 42.4 L 29.2 29.2 42.4 42.4 ° 246 220 246 237 L 279 258 271 267

° 93.5 93.5 95.0 95.0 L 90.5 90.5 92.0 92.0 ° 61.5 61.5 63.0 63.0 L 58.5 58.5 60.0 60.0

2450 2450 2450 2450

L °

2200 2200 2200 2200

L °

8100 8100 8100 8100

L °

5630 6020 6220 6420

2 x 700

2 x 300

4 x 25

[1] The useful heads refer to the nominal air flow rate.

(1) Sound power

Aermec determines the sound power value on the basis of measurements taken in accordance with standard 9614-2, in compliance with the Eurovent certiﬁ cation.

(2) Sound pressure

Sound pressure in an unrestricted range on a reﬂ ective plane (directional fact. Q=2), 10m away from the unit external surface, complying with ISO 3744.

NOMINAL REFERENCE CONDITIONS

− Inlet water temperature 12°C

− Outlet water temperature 7°C

− Outside air temperature d.b. 35°C

− ∆t 5°C

INRLPY. 02.10 4086916_01

7. TECHNICAL DATA

7.1. TECHNICAL DATA VERSIONS [H-HL]

COOLING 2800 3000 3300 3600

Cooling output kW

Total input power kW

Water flow rate l/h

Total pressure drops kPa

HEATING 2800 3000 3300 3600

Heating capacity kW

Total input power kW

Water flow rate on heating l/h

Total pressure drop on heating kPa

Energy indices

EER W/W

ESEER W/W

COP W/W

ELECTRICAL DATA

Fuel feed A

Input current on cooling A

Input current on heating A

Maximum current A

Peak current A

COMPRESSORS (SCROLL)

Number/Circuit

FANS (AXIAL)

Quantity no.

Air ﬂ ow rate, cooling only m³/h

Heat pump air ﬂ ow rate m³/h

Input power kW

Input current A

Useful heads[1] Pa

FANS (INVERTER J)

Quantity no.

Input power kW

Input current A

Useful heads[1] Pa

no./

no.

666 734 846 908

HL 604 664 746 794

280 318 332 358

HL 308 348 374 408

114550 126250 145510 156180

HL 103890 114210 128310 136570

40.2 40.4 46.9 45.7

HL 33.4 33.6 37.0 35.5

768 854 936 1006

252 282 310 332

132.100 146.890 160.990 173.030

53.7 55.4 58.8 57.8

H 2.38 2.31 2.54 2.54

HL 1.96 1.90 1.99 1.95

H 3.57 3.50 3.53 3.60

HL 3.47 3.43 3.44 3.41

3.05 3.03 3.02 3.03

482 551 592 618

HL 521 594 641 673

454 522 558 579

588 646 730 796

797 855 998 1064

10/4 12/4 12/4 12/4

HL 12 12 16 16

H 174800 173600 248400 244800

HL 131000 138800 173800 171400

HL 13.6 13.6 20.4 20.4

HL 28.8 28.8 43.2 43.2

H55 54 47 45

HL - - - -

HL --- -

HL - - - -

8 8 12 12

169800 168000 234600 229200

13.6 13.6 20.4 20.4

28.8 28.8 43.2 43.2

8 8 12 12

13.6 13,.6 20.4 20.4

28.8 28.8 43.2 43.2

55 54 47 45

400V - 3 - 50 Hz

* The water connections are all of the Victaulic type [1] The useful heads refer to the nominal air flow rate

INRLPY. 02.10 4086916_01

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Frequently Asked Questions

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