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r HFCR-410A

High energy efficiency Variable flow-rate Thermodynamic effectPlug fansEnthalpic heat recovery

Packaged reversible Rooftop unit, air cooled, high efficiency with Enthalpic heat recovery

WHISPER_ENTHALPY_0102_0604_201203_EN

(The photo of the unit is purely indicative and may vary depending on the model)

Climaveneta Technical Bulletin

0102 - 060447 - 243 kW

WHISPER Enthalpy

2 WHISPER_ENTHALPY_0102_0604_201203_EN

WHISPER Enthalpy

HFC R410A

Company quality systemcertified to UNI EN ISO 9001

and environmental certificationUNI EN ISO 14001

Waiver of liabilityThis publication represents a preliminary document, and is the sole property of Climaveneta. Any reproduction or disclosure of such is strictly prohibited without the written authorisation of Climaveneta.This document has been prepared with maximum care and at-tention paid to the content shown. Nonetheless, Climaveneta waives all liability deriving from the use of such document.Read this document carefully.

All work must be performed, components selected and materi-als used professionally and in complete accordance with the legislation in force in material in the country concerned, and considering the operating conditions and intended uses of the system, by qualified personnel.The data contained in this publication may be changed without prior notice.

SUMMARY

1. WHISPER Enthalpy: LEED RELEVANT PRODUCT p. 3

2. PRODUCT PRESENTATION 5

3. MAIN COMPONENTS 6

4. DESCRIPTION OF THE UNIT 9

5. STANDARD UNIT CONFIGURATIONS 11

6. OPERATING MODES 11

7. ACCESSORIES 13

8. GENERAL TECHNICAL SPECIFICATIONS 16

9. GAS-FIRED HEATING MODULE 25

10. OPERATING LIMITS 28

11. SOUND LEVELS 30

12. DIMENSIONAL DRAWINGS 32


WHISPER Enthalpy

HFC R410A

The LEED protocol is the most known protocol of sustainability

to define and measure “green buildings” all around the world.

Based on existing and proven technology, it evaluates environ-

mental performance from a whole building perspective over a

building’s life cycle, providing a definitive standard for what con-

stitutes a green building in design, construction and operation.

The LEED rating systems are designed for rating new and ex-

isting commercial, institutional and residential buildings. They

are based on accepted energy and environmental principle

and strike a balance between known, established practices

and emerging concepts.

Each rating system is organized into 7 environmental catego-

ries: Sustainable Sites, Water Efficiency, Energy and Atmos-

phere, Materials and Resources, Indoor Environmental Quality,

Innovation in Design and Regional Bonus.

WHISPER Enthalpy units are compliant with the performance standard contained in the protocol of sustainability LEED. In de-tail, WHISPER Enthalpy units contribute to the following points:

• prerequisite 2 in ENERGY & ATMOSPHERE topic WHISPER Enthalpy units, upon check of the commercial

office, are ASHRAE 90.1 – 2007 compliant. The “Minimum Efficiency Requirements” detailed in the table

6.8.1A/B of the American standard are guaranteed.

WHISPER Enthalpy: LEED RELEVANT PRODUCT

TABLE 6.8.1A Electrically Operated Unitary Air Conditioners and Condensing Units—Minimum E�ciency Requirements

Equipment Type Size Category Heating Section Type

Sub-Category orRating Condition

MinimumEfficiencya

Test Procedureb

Air Conditioners,Air Cooled

≥ 65,000 Btu/h and

<135,000 Btu/h

Electric Resistance(or None)

Split System andSingle Package

10.3 EER (before 1/1/2010)11.2 EER (as of 1/1/2010)11.4 IEER (as of 1/1/2010)

ARI 340/360

All other Split System andSingle Package


≥ 135,000 Btu/h and

<240,000 Btu/h






≥ 240,000 Btu/h and

<760,000 Btu/h



9.5 EER (before 1/1/2010)10.0 EER (as of 1/1/2010)9.7 IPLV (before 1/1/2010)10.1 IEER (as of 1/1/2010)


9.3 EER (before 1/1/2010)9.8 EER (as of 1/1/2010)

9.5 IPLV (before 1/1/2010)9.9 IEER (as of 1/1/2010)

≥ 760,000 Btu/h









WHISPER Enthalpy

HFC R410A

• prerequisite 3 in ENERGY & ATMOSPHERE topic WHISPER Enthalpy units use the refrigerant R410A, which

is compliant with the GWP limitations set by the protocol. In detail, this refrigerant isn’t a (CFC)-based refrigerant as moreover prescribed by the most of the national legislation around the world.

• credit 1 in INDOOR ENVIRONMENTAL QUALITY topic WHISPER Enthalpy units may be provided with a CO2 probe to

constantly monitor the indoor air quality and therefore set the optimum ventilation conditions. This characteristic, together with the measurement of the fresh air flow to be injected into the room (at customer care), is considered in the “OUTDOOR AIR DELIVERY MONITORING” credit, which weights for 1 point in the LEED protocol.

• credit 2 in INDOOR ENVIRONMENTAL QUALITY topic LEED protocol rewarded with 1 point the buildings with an

air treatment plant designed to grant the maximum IAQ. In detail, if the air treatment units can assure an additional fresh air injection, a smart management of the recovery of the rejected heat for the air renewal and the capability to implement free cooling mode when convenient, 1 point can be gained. WHISPER Enthalpy units can all be provided with these optional on request

• credit 5 in INDOOR ENVIRONMENTAL QUALITY topic WHISPER Enthalpy units are available with high performing

filters, F7 and electronic ones, that assure an advanced air filtration minimizing the building occupant exposure to poten-tially hazardous particulates and chemical pollutants. This credit “INDOOR CHEMICAL AND POLLUTANT SOURCE CONTROL” weights for 1 point in the scoring system

• credit 7 in INDOOR ENVIRONMENTAL QUALITY topic This credit implies up to 1 point for the buildings characterized

by a comfortable thermal environment that promotes occupant productivity and well-being. All the WHISPER Enthalpy units, thanks to the advanced thermoregulation logics, the adop-tion of well-sized humidifiers and post-heating coils, grant a precise and fine regulation of the most important variables, ensuring the highest indoor air quality

Other points can be gained as indirect consequence of an high efficient air conditioning system choice. In particular:

• credit 1 in ENERGY & ATMOSPHERE topic WHISPER Enthalpy units, especially the CA and CA-E ver-

sions, contribute to “OPTIMIZE ENERGY PERFORMANCE” of the building.

As known, air-conditioning and ventilation systems are responsible for approximately a third of the total energy con-sumption in a modern building. The proper size and design of each component involved in comfort creation determine a relevant energy saving, prize by LEED protocol with up to 19 points. The amount of points assigned to the building depend to the percentage of energy saving calculated compared with the baseline building performance rating: 1 point for an improvement in energy performance of 12% and 19 points for energy improvement higher than 48%. The baseline building performance are defined according to Appendix G of ASHRAE standard 90.1 – 2007.

• credit 1 in INNOVATION IN DESIGN topic 5 more points can be gained by design teams and projects

that achieve exceptional performance above the requirements set by the LEED Green Building Rating System and/or adopt innovative solution not specifically addressed by the LEED Green Building Rating System.

All WHISPER Enthalpy units use the thermodynamic effect of the exhaust air on the external coil, to recover the heat re-jected for the air renewal and improve the working conditions of the cooling circuit. Moreover the WHISPER Enthalpy units are all capable to operate with variable air flow according to the thermal load and are suitable to be provided with latest generation filters: these advanced design techniques could be classified as innovative and therefore contribute to achieve some points in this topic.

Climaveneta is a Green Building Council Italy and actively sup-ports the diffusion of LEED practice all around the world

There are already several buildings LEED certified also tank to Climaveneta HVAC systems. For more information, browse the project reference list at www.climaveneta.com

GLOSSARYGWP: GlobalWarmingPotential Indexthatexpressthecontributiongivenbyagreen-

houseeffectgasemissionintotheatmosphere.Allthemoleculeshaveapotentialdefined in relationtotheCO2molecule,whichhasapotentialof1andactsasareference.

CFC: ChloroFluoroCarbon LCGWP: LifeCycleGlobalWarmingPotential Indexthatdefineathresholdfortheglobalwarming

potentialestimatedfortheproductlife-cycle.Itisafunctionofthefollowingvariables:-refrigerantGWP-refrigerant leakage rate andend-of-life refriger-ant loss

-estimatedequipmentlife-refrigerantcharge

IAQ: Indoorairquality


WHISPER Enthalpy

HFC R410A

The WHISPER Enthalpy rooftop units are high efficiency pack-aged air-to-air reverse-cycle units, for complete air temperature and humidity control. Filtration, ventilation and air renewal are guaranteed by a packaged solution that’s ideal for large spaces, such as supermarkets and shopping centres.

The cooling section comes as standard with two refrigerant cir-cuits, scroll compressors, R410A refrigerant and heat exchange coils with intertwined circuits; the air handling section uses plug fans as standard for the supply and return air, thermodymanic effect of the exhaust air on the external coila nd rotary enthalpic heat recovery.

Efficiency, reliability, versatility and simple maintenance are the result of precise technological decisions, meaning the WHIS-PER Enthalpy unit can ensure maximum design and operating freedom.

2.2 Energy efficiencyThe WHISPER Enthalpy units stand out in the Climaveneta range of packaged units for the choice of components and solutions aimed at energy efficiency. The AIR 3000 SE controller optimises unit operation in all condi-tions, through intelligent management of the devices available.

• High efficiency plug fans to simplify installation and mainte-nance operations and reduce power consumption required for ventilation;

• Enthalpic wheel heat recovery, making a significant contribution to overall unit performance;

• Heat exchange coils with intertwined circuits, to achieve greater heat transfer efficiency during operation at part load;

• Thermodynamic heat transfer between the exhaust air and the outdoor coil, allowing the unit to operate with more advanta-geous condensing temperatures

• Freecooling to reduce the use of the refrigerant circuit by exploiting favourable outside air conditions.

2.3 Complete rangeThe WHISPER Enthalpy range consists of thirteen sizes, avail-able in a single configuration to satisfy all system requirements, being supplied with a complete set of standard components and a vast selection of accessories.

The units use plug fans on both the air supply and return. Based on innovative control logic developed by Climaveneta, these ensure ventilation remains constant over time while reducing unit power consumption by 30%.

The availability of different filtering options (mechanical or elec-tronic) ensures the best response to the specific requirements of each installation: maximum air quality can be obtained with G3 filters combined with F7 (mechanical bag filters) or H10 (electronic filters), as required.

Reversing of the refrigerant circuit and freecooling/freeheating operation allow continuous service within the wide range of op-erating limits, achieved through careful sizing of the components and specific design choices.

2. PRODUCT PRESENTATION2.4 Simplified installation and maintenance The WHISPER Enthalpy rooftop units simplify and reduce the costs of maintenance and work on site, through:• Compact dimensions for simplified transport, handling and

positioning on site, making these operations make more eco-nomical compared to traditional units.

• Sturdy and perfectly insulated structure that guarantees resist-ance to the elements and mechanical stress

• Easy access to the inside sections and the components that require periodical cleaning, for fast and economical routine maintenance.

• “PLUG and PLAY” construction that ensures, once the unit has been positioned, simpler and faster electrical and air connec-tions.

• Automatic calibration of air flow-rates, with consequent savings in technical service and greater comfort.


WHISPER Enthalpy

HFC R410A

3.1 Plug fansVentilation on all WHISPER Enthalpy units is managed using plug fans with backward inclined blades.These differ from traditional centrifugal fans due to absence of the scroll and direct coupling to the motor, thus eliminating energy loss from the belt and pulley transmission.Depending on the air flow-rate, EC brushless or asynchronous motors with inverter control are used, allowing electronic speed control via a 0-10 V signal. This type of technology ensures clear advantages, with instal-lation being simplified based on the parameters set by the user, without needing any flow-rate adjustment during calibration.

In addition, fan speed adapts to the characteristics of the system even when the unit is operating, for example compensating for any variations in flow-rate due to progressive fouling of the filters.

The low power consumption of these types of fans can be further reduced by applying the exclusive control logic developed by Climaveneta. All this means high operating efficiency even for the part involv-ing the fans, traditionally a critical area in terms of running costs.

3. MAIN COMPONENTS

3.2 Variable flow-rateOn rooftop units, that directly serve the air-conditioned environ-ment and represent the main source of ventilation, the supply and return fans work continuously at a fixed flow-rate (constant speed), in all operating conditions, even during freecooling and at part loads, which together account for the majority of operat-ing hours.

Consequently, power consumption from fan operation on rooftop units represents over 50% of total annual unit power consump-tion, which is why Climaveneta decided to develop a system for controlling fans that could reduce fan power consumption. The most effective way to reduce power consumption is to de-crease fan speed, and consequently flow-rate, whenever system operating conditions allow.


WHISPER Enthalpy

HFC R410A

3.3 Rotary enthalpy recovery This is the most efficient recovery system, with efficiency ranging from 60% to 90% depending on operating conditions, thanks to the exchange surface, which is very high compared to volume. The main component is the enthalpic wheel made with alternat-ing flat and corrugated aluminium sheets. As a series of paths are created, along which renewal and discharge air flows run in opposite directions, it recovers latent heat as well as sensible heat. This makes it possible to reduce the inflow of humidity during summer operation and to reduce or even eliminate any winter humidification device, considerably increasing overall unit efficiency. The rotor is powered by a constant-speed electric motor with a very low power input.

Operating principle In the rotary heat recovery, heat transfer is realized thanks to heat store in the wheel. While the wheel is slowly turning, the exhaust air flows through one half of the wheel and transfers heat at the rotor that stores it. The fresh air, which flows through the other half, absorbs the stored heat. As the wheel continues to rotate, the parts that absorb and give up the heat swap over continuously.

The advanced logic featured on the AIR 3000 SE controller and the use of plug fans with electronic speed control have allowed the variable flow-rate function to be developed. This involves changing the supply and return air flow-rate based on effective demand from the system, considering the activation percentage of each device - compressors, heaters or burners, freecooling or freeheating; for example, progressive shutdown of the com-pressors will bring a reduction in air flow-rate, defined within the limits set by the user.

This means flow-rates are managed based on the actual condi-tions in the air-conditioned space, while still observing any limits defined on the components and the type of system.In addition to benefits in terms of comfort, there are also eco-nomic advantages, as reducing fan speed cuts total unit power consumption by 30% compared to the traditional fixed flow-rate solution.

Summer operating Winter operating

FRESH AIR

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Summer operating Winter operating

FRESH AIR

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XHA


WHISPER Enthalpy

HFC R410A

3.6 AIR 3000 SE advanced controller All units are fitted with the AIR 3000 SE controller, especially developed by Climaveneta for rooftop units, featuring a liquid crystal display (LCD). This keypad accesses a user interface with seven European languages available; users can choose between Italian, English, French, German, Spanish, Swedish and Russian. This allows an interface that’s specific for the country where the unit is installed, or alternatively, by setting English, completely independent for all other regions.

Temperature control is performed using algorithms that control available devices (compressors, hot gas reheating coil, heating devices) based on the unit configuration; control is ap-plied using the return air temperature probe reading, based on proportional or proportional + integral logic.

Interfacing to commercially-available BMS systems is provided thanks to compatibility with BACnet, BACnet OverIP, ModBus and LonWorks protocols.

The built-in clock provides a daily scheduler function, organ-ised into time bands so as to optimise unit operation, minimising system energy consumption. In fact, several time bands (up to 10) of different types (4) can be activated throughout the day, with each band being assigned: • temperature set point for cooling and heating• humidity set point• unit operating modes: control on, off, purging, start-up. The fan section can be managed in the following modes:• ON/OFF: the fans are on at maximum rotation speed or off,

depending on whether or not the heating-cooling devices are operating;

• constant speed: the supply and return fans maintain a con-stant rotation speed;

• constant pressure/flow: as pressure drop varies, the fans change speed so as to maintain pressure/flow-rate at the design value for the system, regardless of filter clogging and the actual static pressure of the ducting;

• variable flow-rate: as the percentage of unit device activation changes, the flow-rate varies within limits set by the user.

Other available functions include:• room humidity control in cooling and heating mode• automatic temperature- and enthalpy-based freecooling

management• self-adaptive defrost management using algorithms that

reduce defrost duration or prevent unnecessary or wasteful cycles

• demand limit on compressors to reduce mains power con-sumption

• set point compensation based on outside temperature, in both cooling and heating operation.

Also available are display and acquisition of the last 200 alarm events (user level), as well as recording of operating variables in the 10 minutes prior to each alarm event (Black Box) with display via PC. Compatibility with remote keypad (management of up to 10 units).

3.4 Thermodynamic effect Thermodynamic heat transfer allows efficient use of the remain-ing energy contained in the exhaust air, by forcing this through the outside section of the refrigerant circuit.This consequently increases unit performance, allowing opera-tion at a condensing temperature that’s more advantageous than the outside temperature, meaning lower power consumption and higher overall efficiency.

3.5 Intertwined circuitsAll units in the WHISPER Enthalpy range feature two refrigerant circuits and heat exchange coils with intertwined circuits: both circuits run through both the indoor and outdoor coils, with pipes that criss-cross the entire surface area.This constructional solution allows the unit to work at part load over a heat transfer surface - represented by the area of the

fins - that is larger than the solution with two independent coils for each circuit.This implies greater overall unit efficiency at part load and is available on the indoor coil for all models, and on the outdoor coil for models 0102 to 0402.


WHISPER Enthalpy

HFC R410A

4. DESCRIPTION OF THE UNITPackaged autonomous Rooftop unit, reversible air cooled, for air temperature-humidity control, filtering and air change in large spaces.Operates in both winter and summer seasons, two refrigerant circuits, scroll compressors with R410A refrigerant, finned coil outdoor heat exchangers with thermodynamic effect of the exhaust air, axial-flow fans.Air handling section with plug fans on supply and return, rotary enthalpic heat recovery, finned coil indoor heat exchanger and motorised outside air, mixing and exhaust dampers. Air flow-rate management by constant pressure/flow-rate or variable flow-rate based on heating or cooling demand.

StructureOutdoor structure with base made from hot galvanised steel sections, painted with epoxy powder coat, and “Peraluman” aluminium alloy panelling.Air handling section (indoor) completely separated from the refrigerant circuit control devices by double chamber, made from aluminium alloy sections and double wall sandwich panel-ling with 42 mm thick polyurethane foam insulation in between, inner surface made from hot galvanised sheet metal and outer surface from “Peraluman” aluminium alloy.The panels can be removed for complete access to the inside components.

Compressors Hermetic rotary scroll compressors, R410A refrigerant, housed in a separate compartment; each compressor is fitted with crank-case heater and a two-pole electric motor with direct starting, internally protected against excess temperature.

Indoor heat exchangerDirect expansion air handling coil for heat exchange with the refrigerant gas, made from a coil of mechanically expanded copper tubes and corrugated aluminium fins. Aluminium basin for collecting condensate, with sloping bottom and complete with drain attachment. Both refrigerant circuits use the entire heat exchange surface available (intertwined circuits), so as to achieve high energy efficiency with the unit operating at part load. The speed of the air through the coil is kept below the limit value of 2.7 m/s, even at full flow, to avoid entraining condensate, including in the most extreme temperature-humidity conditions.

Outdoor heat exchangerDirect expansion outdoor coil for heat exchange between the refrigerant gas and the outside air, made from a coil of mechani-cally expanded copper tubes and corrugated aluminium.On sizes from 0102 to 0404, both refrigerant circuits use the entire heat exchange surface available (intertwined circuits), so as to achieve high energy efficiency with the unit operating at part load. Sizes from 0454 to 0604 have separate coils on each circuit.

Refrigerant circuitThe unit has two refrigerant circuits to ensure reliability, easy maintenance and repairs in the event of faults. Each circuit is also complete with the following:• R410A refrigerant charge• filter-drier• liquid flow indicator• thermostatic expansion valve with external equaliser

• liquid separator• charge and pressure control valves• high and low pressure safety valves• non-return valve• four-way valve for reversing the cycle.

Indoor fansThe supply and return fans are plug fans, with statically and dynamically balanced impellers according to DIN ISO 1940, quality grade G2.5 and G6.3.The motors are standard size with IP55 protection, class F insulation, directly coupled EC brushless motors for sizes 0102 to 0302, and three-phase asynchronous motors with inverter control for sizes 0352 to 0604.The fans are fitted with differential pressure transducers.

Outdoor fansWing shaped axial fans in die-cast aluminium, with external rotor. The electric motor is fitted with built-in thermal protector and self-supporting protective mesh on the outside. Motor index of protection IP55, insulation class F.

Filtering section Filtering section made by G3 synthetic fibres plated filter for air treatment section, G1 metallic mesh filter and G3 synthetic fibres plated filter for fresh air section, G3 synthetic fibres plated filter for return air section. Placed on steel guides easily accessible for ordinary maintenance and replacement.

Heat recoveryEnergy recovery system on the exhaust air, made up of a high efficiency enthalpy wheel consisting of alternating flat and cor-rugated aluminium sheets, with hygroscopic treatment, so as to create a series of passageways in the opposing directions to the flows of fresh and exhaust air. The wheel is driven by an electric motor at constant speed with very low power consumption.Both sensible and latent energy is recovered: this limits the intro-duction of moisture into the room during summer and increases humidity in winter.

Rainproof hoodMetal rain grill fitted on the external air damper for models from 0102 to 0404, to avoid suction of water inside the chamber, and anti-intrusion net on the expulsion damper. Metal rain grill fitted on the external air damper and rainproof hood on the free cooling external air damper for models from 0454 to 0604, to avoid suction of water inside the chambers; anti-intrusion net on the expulsion damper and rainproof with net on the free cooling expulsion damper

Power and control electrical panelPower and control electrical panel built in compliance with EN60204-1 and IEC204-1, complete with:• control circuit transformer• main door lock disconnect switch• power section with busbars• fuses and contactors for compressors and fans• spring-loaded terminals on the control circuits (cage clamp)• microprocessor electronic controller with supply temperature

control. Protected by a removable “Peraluman” panel and two hinged doors with gaskets.

Unit power supply voltage: 400V~ ±10% - 50Hz - 3N


WHISPER Enthalpy

HFC R410A

AIR 3000 SE controllerThe AIR3000 SE controller stands out for its advanced functions and proprietary control strategies.The keypad features function controls and a complete LCD display for viewing data and activating the unit, via a multilevel menu, with settable display language.It can be used to set the unit start-up and indoor air purging stages, as well as to set unit the operating mode (manual heat-ing or cooling, automatic changeover).

Temperature control is based on proportional or proportional + integral logic using the return air temperature probe reading; the set point can also be adjusted based on the outside temperature, in both cooling and heating mode.Defrosts use proprietary self-adaptive logic involving monitoring of multiple operating and climate parameters. This reduces the number and duration of defrosts, consequently increasing overall energy efficiency.Supervision is available with different options, using proprietary devices or by integration into third party systems using ModBus, BACnet, BACnet-over-IP and Echelon LonWorks protocols. Compatibility with remote keypad (management of up to 10 units). The timer can be used to create an operating profile with up to 4 typical days and 10 different time bands.

Certification Unit compliant with the following directives and amendments:• Machinery directive 2006/42/EC.• EMC 89/336/EEC + 2004/108/EC.• Low voltage directive 2006/95/EC.• Pressure equipment directive 97/23/EC. Form A1. TÜV Italia

0948.


WHISPER Enthalpy

HFC R410A

5. STANDARD UNIT CONFIGURATION5.1 FCC Freecooling with plug fans on supply and return

The WHISPER Enthalpy units are available in one single configuration with three motorised damp-ers managed by the AIR 3000 SE controller on the unit, and allows automatic management of air supply, return, change, exhaust and recirculation.The unit works completely autonomously, without the need to extract air from the air-conditioned space using other devices: the supply air plug fan ensures the design air flow-rate, while the return air plug fan ensures recirculation and exhaust from the air-conditioned space.The control AIR 3000 SE controller also manages the freecooling function, as well as washing and start-up.

6. OPERATING MODES6.1 Normal operation with mixing

During normal operation the unit creates a mixture of return air from inside the space and outside air, in a fixed percentage set by the user, or managed automatically by the optional CO2 probe or based on an external signal.

The exhaust and outside air dampers are opened to a propor-tion such as to maintain pressure balance, based on the user settings, while recirculation damper management is comple-mentary.

6.2 Freecooling / Freeheating operation

This function is enabled when the temperature or enthalpy (op-tional) conditions of the outside air allow. The outside air and exhaust dampers are opened completely and the mixing damper is closed during 100% freecooling, the recovery wheel is stopped and for models 0454 ÷ 0604 it is by-

passed. The device.s are progressively deactivated until they shut down completely; the percentage of freecooling is progres-sively reduced and the mixing damper opens as a consequence when the outside temperature falls.


WHISPER Enthalpy

HFC R410A

6.3 Washing

This optional function cleans the space with fresh outside air, without any additional process, and can be used after an ex-tended period of closing or whenever the air inside the space needs to be changed quickly.

During this procedure the compressors are off, the mixing damper is closed, while the exhaust and outside air dampers are fully open.

6.4 Start-up

This optional function quickly brings the space to the desired temperature, when unoccupied, by completely recirculating the air, and can be used after the washing function.

During this procedure the compressors are on, the outside air and exhaust dampers are closed, while the mixing damper is fully open.


WHISPER Enthalpy

HFC R410A

7. ACCESSORIESCODE ACCESSORY NAME DESCRIPTION ADVANTAGES

411 Electrical Panel with forced ventilation

3301 Power factor correction Condensators on the compressors' power inlet line.

The unit's average cos(phi) increases to a value (average) of 0,92.

3412 Automatic circuit breakers Over-current switch on the major electrical loads.

It protects compressors and/or fans from possible current peaks.

4181 ModBUS connectivity Interface module for ModBUS protocols Allows integration with BMS operating with ModBUS protocol

4182 Echelon connectivity Interface module for Echelon systems Allows integration with BMS operating with LonWorks procotls

4184 BACnet connectivity Interface module for BACnet protocols Allows integration with BMS operating with BACnet protocol

1401 HP AND LP GAUGES High and low pressure gauges. Allows immediate reading of the pressure values on both low and high pressure circuits.

881 Cu/Cu condensing coils Air-refrigerant heat exchanger with copper fins and tubes.

Recommended for applications in corrosive atmospheres

883 Condensing coils with epoxy-coated fins Painted air-refrigerant heat exchanger. Recommended for applications in medium level

pollution atmospheres.

895 Condensing coils with Fin Guard Silver treatment

Air-refrigerant heat exchanger with epoxidic treatment on coils and fins.

Recommended for marine exposure conditions, with an high level of pollution or other aggressive atmospheres.

971 Cu/Cu internal coil Internal air treatment coil with copper fins and tubes.

Recommended for applications in corrosive atmospheres

974 Internal coil with Fin Guard Silver treatment

Internal air treatment coil with epoxidic treatment on coils and fins.

Recommended for marine exposure conditions, with an high level of pollution or other aggressive atmospheres.

975 Internal coil with pre-painted fins

Internal air treatment coil with pre-painted fins

Recommended for applications in medium level pollution atmospheres.

2024 External coils Anti-intrusions grills

Avoid the intrusion of solid bodies into the unit's structure

1300 Water heating coil Water heating coil installed after the internal treatment coil

The coil is a heating source which can be used as integration or sobstitution in heat pump working.

1310 Electrical heating coil Electrical heater installed after the internal treatment coil

The electrical heating coil is a heating source which can be used as integration in heat pump working.

861 Pressostatic condensing control for low ambient

Step management of the axial fans on the base of the condensing pressure

When the unit is working at low external air temperatures, the device stops one or more fans in sequence in order to maintain control over condensing pressure

862 Variable step speed condensing control device

Electrical transformer to manage the air flow at 3 fixed speed values according to the condensing temperature.

When the unit is working at low external air temperatures, the uniform reduction of airflow over the entire surface of the coil offers accurate control of condensing pressure and decreases the overall noise level of the unit.

863 Continuous variable speed condensing control

Continuous fans speed control on the base of the condensing pressure, cutting phase device

When the unit is working at low external air temperatures, the uniform reduction of airflow over the entire surface of the coil offers accurate control of condensing pressure.


WHISPER Enthalpy

HFC R410A

CODE ACCESSORY NAME DESCRIPTION ADVANTAGES

1337 Hot gas Post heating

Condensing finned coil, installed dowstream the treatment coil, fed by hot gas coming from the compressor's supply. For a correct functioning, this option is supplied with a humidity probe.

Enthalpic control to bring the ambient humidity back to wellbeing values. Initial de-humidification phase made by the evaporating coil, that reduces humidity content in the air; final phase with post heating made by hot gas coil to correct supply air temperature

1342 3 way valve

Modulating mixing valve installed dowstream the water heatign coil, supplied mounted and with modulating drive.

1350 Modulating gas fired heating module

The heat module features an additional section inside the unit holding the condensation heating module, comprises a modulating premix gas burner and a stainless steel air/fumes exchanger. The heating module heats the air and discharges it into the room in such a way that it blows over the outer surface of the combustion chamber and the tubes of the exchanger.

The natural gas-fired heating module is ideal for particularly cold climates. In the heat pump versions, the module can be used to integrate the heat pump, while of course it replaces theheat pump in the cooling-only units.The gas-fired condensation heat module offers: high heating power with a very compact heating module; elevated efficiency (up to 105%) due to the exploitation of the condensation heat; practically zero CO emissions and Nox levels < 35 ppm thanks to the use of a premix burner.

2101 Rubber anti vibration device

2062 Right return air directionReturn air on the right side, as regards of the air flow direction, to be specified in the order

2065 Left return air directionReturn air on the left side, as regards of the air flow direction to be specified in the order

2521 High efficiency bag filters, F7

Available in addition to standard filters, they are made from F7 efficiency fibreglass paper and are Class 1 fire resistant. The large inspection panels and steel guides make them easy to remove for cleaning or replacement.

Mounted on the treatment coil inlet, they ensure that the air effectively introduced into the room is filtered.

2524 Electronic filters

Fitted at the coil inlet and used instead of mechanical filtration F7. The electrostatic precipitation process, lying at the heart of the operating principle, comprises three main stages: electrically charging the airborne particles; capturing the particles; removing the captured particles. The particles are electrified by a discharge ionising device.

Used in high-efficiency applications (yields of 99%) to trap dust particles as small as one micrometre in diameter. Featuring very low pressure drops, they also save ventilating power. Electrostatic filters are designed for long service life and very low maintenance requirements, apart from routine cleaning which is automatically indicated by the filters.They also remove harmful pathogenic agents. High efficiency combined with a long service life allows the initial cost of the investment to be amortised by the extremely low management and running costs.

4121 Forced shut down Digital inlet to switch off the unit from remote


WHISPER Enthalpy

HFC R410A

CODE ACCESSORY NAME DESCRIPTION ADVANTAGES

4141 CO2 air quality probe

Used to manage air quality inside the building. The signal is processed by the control unit in order to adjust the external air intake

The automatic management of the air renewal allows to treat the external air only when necessary, granting compliance with personal wellbeing regulations

4142 External forcing 4-20 mA Remote forcing with 4-20 mA signal to manage the dampers for air renewal

4171 Remote forcing for air estraction

Digital input that manage the closing of the recirculation damper, the opening of the outlet and inlet dampers, the switching off of the compressors and the start of he supply and return fans

4172 Remote room washing

Digital input for the complete renewal of air in the empty room. Estraction and expulsion of the ambient air, introduction of renewal external air with switched off compressors

Renewal of ambient air when the room has not been used for a long time or whenever all the ambient air requires rapid changing

4173 Washing and running up

Function to be activated when the room is empty, first washing of the air in the room and then start-up in total air recirculation.

4132 Enthalpic Free cooling

Function manged by temperature and humidity probes, installed in a position allowing them to check and compare the energy status of both the ambient and the external air. The control manages the opening/closing of the dampers in order to exploit more favourable external conditions.

During Free cooling functioning, the resources are progressively disconnected, till complete switch off, keeping the requried termo-hygrometric ambient condition, thanks to the external favourable conditions.

4131 Ambient humidity probeProbe to measure relative humidity percentage in the ambient, intalled on the return

4271 Ambient air probe Return air temperature probe supplied loose for ambient installation

4272 Return air probe Return air temperature probe supplied loose for return duct installation

4300 Steam humidifier

Humidification takes place directly inside the unit using a steam diffuser immersed in the flow of treated air. The steam is generated inside an immersed electrode humidifier.

Adjustment of relative humidity in winter mode

1852 Filters differential pressure switch

Differential air presure switch to detect filters' obstruction, with warning

4240 Return fan uprated motor Increment of the motor electrical power of the return fans

Increment of the static available pressure at the return fans intlet

4250 Supply fan uprated motor Increment of the motor electrical power of the supply fans

Increment of the static available pressure at the supply fans outlet


WHISPER Enthalpy

HFC R410A

8. GENERAL TECHNICAL SPECIFICATIONSSIZE 102 122 152 182 202 252 302

WHISPER Enthalpy

Cooling

Cooling capacity kW 47,4 58,3 66,6 77,5 96,7 121,8 132,9

Cooling capacity recovery kW 13,6 15,7 17,0 19,7 27,7 32,0 35,3

Sensible capacity kW 31,3 38,0 43,6 52,2 64,2 79,1 87,6

Compressor power input kW 8,6 11,7 13,4 16,2 16,9 21,9 26,0

WHISPER Enthalpy

Heating

Heating capacity kW 40,82 53,3 60,7 70,7 83,2 108,2 118

Heating capacity recovery kW 9,1 10,6 11,5 13,4 18,6 21,5 23,8

Compressor power input kW 7,2 9,9 10,8 12,8 13,7 17,6 20,6

Supply fan

Type Plug fan (EC)

Quantity no. 2 2 2 2 2 2 2

Supply air flow-rate m3/h 6.500 7.800 8.600 10.500 13.000 15.500 17.500

Available static pressure Pa 250 250 250 250 250 250 250

Unit power consumption kW 0,67 0,91 1,07 1,60 1,37 1,84 2,33

Return/exhaust fans

Type Plug fan (EC)

Quantity no. 2 2 2 2 2 2 2

Return air flow-rate m3/h 6.500 7.800 8.600 10.500 13.000 15.500 17.500

Available static pressure Pa 170 150 150 150 150 150 150


Outdoor fans

Type Axial-flow

Quantity no. 2 2 2 2 2 2 2

Outside air flow-rate m3/h 19.300 19.300 18.200 16.000 41.000 38.300 38.300


Compressors

Type Scroll

Number of compressors no. 2 2 2 2 2 2 2

Number of circuits no. 2 2 2 2 2 2 2

Capacity steps no. 2 2 2 2 2 2 2

Charge

Refrigerant kg 11,6 12,5 13,2 18,4 19,1 20,3 28,1

Oil kg 3,9 6,5 6,5 6,5 6,5 8,0 13,2

Standard unit dimensions

Length mm 4.350 4.350 4.350 4.350 4.500 4.500 4.500

Width mm 1.700 1.700 1.700 1.700 2.250 2.250 2.250

Height mm 1.630 1.630 1.630 1.630 2.390 2.390 2.390

Std. unit weight in operation kg 1.430 1.460 1.520 1.540 2.430 2.480 2.540

Reference conditionsCooling:Outside 35°C 50% RH - Inside 27°C 47% RH - Mixture 30%Heating:Outside 7°C 87% RH - Inside 20°C 50% RH - Mixture 30%

(1) Sound powerSound power values are taken from the supplier’s technical documents and refer to individual fans with ducted outlet and open intake

Total sound power (1)

Supply dB(A) 73 75 76 79 78 80 82

Return dB(A) 75 78 79 84 75 78 81

Outside dB(A) 88 89 90 91 94 94 94


WHISPER Enthalpy

HFC R410A

8. GENERAL TECHNICAL SPECIFICATIONSSIZE 352 364 404 454 504 604

WHISPER Enthalpy

Cooling

Cooling capacity kW 156,9 160,1 175,8 195,3 224,9 242,7

Cooling capacity recovery kW 40,6 40,6 43,5 49 51,6 55,3

Sensible capacity kW 105,1 106,5 118,2 133,4 148,9 163,1

Compressor power input kW 31,4 33,0 36,9 40,5 44,0 52,2

WHISPER Enthalpy

Heating

Heating capacity kW 139,6 142,5 158,8 173,4 206,5 223,6

Heating capacity recovery kW 27,6 27,6 29,6 33,4 35,3 37,9

Compressor power input kW 23,2 24,2 26,9 33,2 36,8 43,2

Supply fan

Type Plug fan (inverter)

Quantity no. 2 2 2 2 2 2

Supply air flow-rate m3/h 21.000 21.000 23.000 27.000 29.000 32.000

Available static pressure Pa 250 250 250 250 250 250

Unit power consumption kW 2,61 2,61 3,19 3,92 4,53 5,66

Return/exhaust fans

Type Plug fan (inverter)


Return air flow-rate m3/h 21.000 21.000 23.000 27.000 29.000 32.000

Available static pressure Pa 150 150 150 150 150 150


Outdoor fans

Type Axial-flow


Outside air flow-rate m3/h 42.000 42.000 42.000 84.200 76.000 76.000


Compressors

Type Scroll

Number of compressors no. 2 4 4 4 4 4

Number of circuits no. 2 2 2 2 2 2

Capacity steps no. 2 4 4 4 4 4

Charge

Refrigerant kg 29,0 29,3 41,1 45,7 53,7 69,9

Oil kg 13,0 13,0 13,0 15,6 16,0 26,4

Standard unit dimensions

Length mm 5.295 5.295 5.295 6.500 6.500 6.500

Width mm 2.250 2.250 2.250 2.250 2.250 2.250

Height mm 2.390 2.390 2.390 2.390 2.390 2.390

Std. unit weight in operation kg 3.000 3.110 3.130 3.620 3.710 3.760

Total sound power (1)

Supply dB(A) 85 85 88 87 88 90

Return dB(A) 85 85 86 86 87 90

Outside dB(A) 95 95 97 97 97 98

Reference conditionsCooling:Outside 35°C 50% RH - Inside 27°C 47% RH - Mixture 30%Heating:Outside 7°C 87% RH - Inside 20°C 50% RH - Mixture 30%

(1) Sound powerSound power values are taken from the supplier’s technical documents and refer to individual fans with ducted outlet and open intake


WHISPER Enthalpy

HFC R410A

SizeAir flow-rate Standard Large (MM1) Extralarge (MM2)

m3/h Pa (1) rpm kW cons.

kW inst. Pa (1) rpm kW

cons.kW inst. Pa (1) rpm kW

cons.kW inst.

102

Min 3.300 1.566 2.988 3,22 5,0 -- -- -- -- -- -- -- --

Std 6.500 1.298 2.991 4,76 5,0 -- -- -- -- -- -- -- --

Max 7.200 1.261 2.979 4,84 5,0 -- -- -- -- -- -- -- --

122

Min 3.900 1.405 1.984 3,82 5,0 -- -- -- -- -- -- -- --

Std 7.800 1.124 2.989 4,94 5,0 -- -- -- -- -- -- -- --

Max 8.500 991 2.971 4,86 5,0 -- -- -- -- -- -- -- --

152

Min 4.300 1.485 2.976 3,98 5,0 -- -- -- -- -- -- -- --

Std 8.600 1.010 2.986 4,94 5,0 -- -- -- -- -- -- -- --

Max 9.300 879 2.983 4,88 5,0 -- -- -- -- -- -- -- --

182

Min 5.300 1.418 2.984 4,40 5,0 -- -- -- -- -- -- -- --

Std 10.500 636 2.990 4,74 5,0 -- -- -- -- -- -- -- --

Max 11.200 453 2.979 4,50 5,0 -- -- -- -- -- -- -- --

202

Min 6.500 992 1.523 4,50 7,2 -- -- -- -- -- -- -- --

Std 13.000 799 1.523 6,16 7,2 -- -- -- -- -- -- -- --

Max 18.200 502 1.518 6,62 7,2 -- -- -- -- -- -- -- --

252

Min 7.800 958 1.520 4,88 7,2 -- -- -- -- -- -- -- --

Std 15.500 666 1.524 6,52 7,2 -- -- -- -- -- -- -- --

Max 20.700 295 1.522 6,58 7,2 -- -- -- -- -- -- -- --

302

Min 8.800 936 1.525 5,22 7,2 -- -- -- -- -- -- -- --

Std 17.500 516 1.517 6,58 7,2 -- -- -- -- -- -- -- --

Max 22.000 159 1.524 6,48 7,2 -- -- -- -- -- -- -- --

352

Min 10.500 1.443 1.871 7,92 8,0 2.313 2.309 13,5 15,0 -- -- -- --

Std 21.000 746 1.599 5,32 8,0 1.456 2.135 15,0 15,0 -- -- -- --

Max 22.500 505 1.703 7,96 8,0 1.305 2.112 14,8 15,0 -- -- -- --

364

Min 10.500 1.443 1.871 7,92 8,0 2.313 2.309 13,5 15,0 -- -- -- --

Std 21.000 746 1.599 5,32 8,0 1.456 2.135 15,0 15,0 -- -- -- --

Max 22.500 505 1.703 7,96 8,0 1.305 2.112 14,8 15,0 -- -- -- --

404

Min 11.800 2.266 2.307 14,24 15,0 -- -- -- -- -- -- -- --

Std 23.000 1.257 2.113 14,92 15,0 -- -- -- -- -- -- -- --

Max 23.000 1.271 2.113 14,92 15,0 -- -- -- -- -- -- -- --

454

Min 13.500 1.988 1.949 14,90 15,0 2.248 2.058 17,1 22,0 -- -- -- --

Std 27.000 946 1.744 14,86 15,0 1.576 2.021 21,9 22,0 -- -- -- --

Max 31.600 623 1.736 14,92 15,0 1.206 1.977 21,8 22,0 -- -- -- --

504

Min 14.500 1.898 1.923 14,88 15,0 2.218 2.057 17,7 22,0 -- -- -- --

Std 29.000 804 1.736 14,86 15,0 1.414 1.944 21,9 22,0 -- -- -- --

Max 33.600 477 1.739 14,90 15,0 1.047 1.971 21,8 22,0 -- -- -- --

604

Min 16.000 1.761 1.886 14,86 15,0 2.171 2.060 17,7 22,0 -- -- -- --

Std 32.000 573 1.735 14,88 15,0 1.153 1.975 21,8 22,0 -- -- -- --

Max 36.600 226 1.750 14,84 15,0 786 1.971 21,8 22,0 -- -- -- --

SUPPLY FAN MOTOR SPECIFICATIONS

(1) Pa: Maximum available static pressure, unit in basic configuration


WHISPER Enthalpy

HFC R410A

SizeAir flow-rate Standard Large (MM1) Extralarge (MM2)

m3/h Pa (1) rpm kW cons.

kW inst. Pa (1) rpm kW

cons.kW inst. Pa (1) rpm kW

cons.kW inst.

102

Min 3.300 1.561 2.988 3,22 5,0 -- -- -- -- -- -- -- --

Std 6.500 1.297 2.991 4,76 5,0 -- -- -- -- -- -- -- --

Max 7.200 1.198 2.979 4,84 5,0 -- -- -- -- -- -- -- --

122

Min 3.900 1.512 1.984 3,82 5,0 -- -- -- -- -- -- -- --

Std 7.800 1.127 2.989 4,94 5,0 -- -- -- -- -- -- -- --

Max 8.500 998 2.971 4,86 5,0 -- -- -- -- -- -- -- --

152

Min 4.300 1.476 2.976 3,98 5,0 -- -- -- -- -- -- -- --

Std 8.600 1.000 2.986 4,94 5,0 -- -- -- -- -- -- -- --

Max 9.300 870 2.983 4,88 5,0 -- -- -- -- -- -- -- --

182

Min 5.300 1.408 2.984 4,40 5,0 -- -- -- -- -- -- -- --

Std 10.500 628 2.990 4,74 5,0 -- -- -- -- -- -- -- --

Max 11.200 447 2.979 4,50 5,0 -- -- -- -- -- -- -- --

202

Min 6.500 1.006 1.523 4,50 7,2 -- -- -- -- -- -- -- --

Std 13.000 838 1.523 6,16 7,2 -- -- -- -- -- -- -- --

Max 18.200 569 1.518 6,62 7,2 -- -- -- -- -- -- -- --

252

Min 7.800 979 1.520 4,88 7,2 -- -- -- -- -- -- -- --

Std 15.500 731 1.524 6,52 7,2 -- -- -- -- -- -- -- --

Max 20.700 399 1.522 6,58 7,2 -- -- -- -- -- -- -- --

302

Min 8.800 925 1.525 5,22 7,2 -- -- -- -- -- -- -- --

Std 17.500 512 1.517 6,58 7,2 -- -- -- -- -- -- -- --

Max 22.000 167 1.524 6,48 7,2 -- -- -- -- -- -- -- --

352

Min 10.500 1.484 1.871 7,92 8,0 2.354 2.309 13,5 15,0 -- -- -- --

Std 21.000 874 1.599 5,32 8,0 1.584 2.135 15,0 15,0 -- -- -- --

Max 22.500 649 1.703 7,96 8,0 1.449 2.112 14,9 15,0 -- -- -- --

364

Min 10.500 1.484 1.871 7,92 8,0 2.354 2.309 13,5 15,0 -- -- -- --

Std 21.000 874 1.599 5,32 8,0 1.584 2.135 15,0 15,0 -- -- -- --

Max 22.500 649 1.703 7,96 8,0 1.449 2.112 14,9 15,0 -- -- -- --

404

Min 11.800 1.385 1.836 7,98 8,0 2.315 2.307 14,2 15,0 -- -- -- --

Std 23.000 602 1.701 7,92 8,0 1.412 2.113 14,9 15,0 -- -- -- --

Max 23.000 610 1.701 7,92 8,0 1.420 2.113 14,9 15,0 -- -- -- --

454

Min 13.500 1.217 1.519 7,92 8,0 2.107 1.949 14,9 15,0 -- -- -- --

Std 27.000 545 1.407 7,90 8,0 1.235 1.744 14,9 15,0 -- -- -- --

Max 31.600 318 1.431 7,80 8,0 978 1.736 14,9 15,0 -- -- -- --

504

Min 14.500 1.158 198 7,92 8,0 2.028 1.923 14,9 15,0 -- -- -- --

Std 29.000 441 1.411 7,82 8,0 1.121 1.736 14,9 15,0 -- -- -- --

Max 33.600 211 1.448 7,84 8,0 861 1.739 14,9 15,0 -- -- -- --

604

Min 16.000 1.898 1.886 14,86 15,0 -- -- -- -- -- -- -- --

Std 32.000 914 1.735 14,88 15,0 -- -- -- -- -- -- -- --

Max 36.600 635 1.750 14,84 15,0 -- -- -- -- -- -- -- --

RETURN FAN MOTOR SPECIFICATIONS

(1) Pa: Maximum available static pressure, unit in basic configuration


WHISPER Enthalpy

HFC R410A

ELECTRICAL DATA

Maximum values

Size no.Compressors Each supply

fan (1)Each return

fan (1) Outdoor fans Total (1)

F.L.I. [kW]

F.L.A. [A]

F.L.I. [kW]

F.L.A. [A]

F.L.I. [kW]

F.L.A. [A]

F.L.I. [kW]

F.L.A. [A]

L.R.A. [A] no. F.L.I.

[kW]F.L.A.

[A] no. F.L.I. [kW]

F.L.A. [A] no. F.L.I.

[kW]F.L.A.

[A]F.L.I. [kW]

F.L.A. [A]

S.A.[A]

0102 2 6,55 13,79 6,55 13,79 - - - - 87,00 2 2,50 4,00 2 2,50 4,00 2 0,48 0,93 24,06 45,44 118,65

0122 2 7,73 16,86 7,73 16,86 - - - - 100,00 2 2,50 4,00 2 2,50 4,00 2 0,48 0,93 26,42 51,58 134,72

0152 2 8,99 15,15 8,99 15,15 - - - - 100,00 2 2,50 4,00 2 2,50 4,00 2 0,48 0,93 28,94 48,16 133,01

0182 2 10,53 18,36 10,53 18,36 - - - - 142,00 2 2,50 4,00 2 2,50 4,00 2 0,48 0,93 32,02 54,58 178,22

0202 2 11,82 19,93 11,82 19,93 - - - - 142,00 2 3,60 5,70 2 3,60 5,70 2 2,00 4,00 42,04 70,66 192,73

0252 2 15,48 25,22 15,48 25,22 - - - - 158,00 2 3,60 5,70 2 3,60 5,70 2 2,00 4,00 49,36 81,24 214,02

0302 2 17,44 30,62 17,44 30,62 - - - - 160,00 2 3,60 5,70 2 3,60 5,70 2 2,00 4,00 53,28 92,04 221,42

0352 2 17,44 30,62 24,04 40,00 - - - - 215,00 2 4,71 8,40 2 4,71 8,40 2 2,00 4,00 64,32 112,22 287,22

0364 4 10,53 18,36 10,53 18,36 10,53 18,36 10,53 18,36 142,00 2 4,71 8,40 2 4,71 8,40 2 2,00 4,00 64,96 115,04 238,68

0404 4 11,82 19,93 11,82 19,93 11,82 19,93 11,82 19,93 142,00 2 8,53 14,80 2 4,71 8,40 2 2,00 4,00 77,76 134,12 256,19

0454 4 11,82 19,93 11,82 19,93 15,48 25,22 15,48 25,22 158,00 2 8,53 14,80 2 4,71 8,40 4 2,00 4,00 89,08 152,70 285,48

0504 4 15,48 25,22 15,48 25,22 15,48 25,22 15,48 25,22 158,00 2 8,53 14,80 2 4,71 8,40 4 2,00 4,00 96,40 163,28 296,06

0604 4 17,44 30,62 17,44 30,62 17,44 30,62 17,44 30,62 160,00 2 8,53 14,80 2 8,53 14,80 4 2,00 4,00 111,88197,68 327,06

(1) Standard motorsF.L.I. Power consumption at max. conditions allowed.F.L.A. Current draw at max. conditions allowed.L.R.A. Peak current of individual compressor.S.A. Peak current of unit with standard motors.

Power supply:- 400/3/50 WITHOUT NEUTRAL- Allowable variation in voltage 10%- Maximum unbalance between phase voltages 3%


WHISPER Enthalpy

HFC R410A

(1) For correct calculation of the available static pressure,subtract this value from the data for the basic unit.kWt = Heating capacitym3/h = Water coil flow-ratePa = Air coil pressure dropkPa = Water coil pressure drop

ModelRet. air

°C

Reduced air flow-rate Rated air flow-rate Higher air flow-rate

kWt

Water Air

kWt

Water Air

kWt

Water Air

m3/h kPa Pa (1) m3/h kPa Pa

(1) m3/h kPa Pa (1)

0102

10 42,2 1,86 19,8

5

64,8 2,86 42,9

16

68,9 3,04 47,8

1915 38,8 1,71 17,0 59,5 2,63 36,7 63,2 2,79 41,0

20 35,3 1,56 14,4 54,2 2,39 31,0 57,6 2,54 34,6

0122

10 47,1 2,08 24,1

7

72,2 3,19 52,1

22

75,9 3,35 56,9

2515 43,2 1,91 20,7 66,3 2,93 44,6 69,6 3,08 48,7

20 39,4 1,74 17,5 60,3 2,66 37,6 63,4 2,80 41,2

0152

10 50,1 2,21 27,0

8

76,4 3,38 57,6

26

79,9 3,53 62,5

3015 46,1 2,03 23,2 70,1 3,10 49,4 73,3 3,24 53,2

20 42,0 1,85 19,6 63,8 2,82 41,7 66,7 2,95 45,1

0182

10 57,2 2,53 34,2

11

85,5 3,78 70,6

36

88,6 3,92 75,3

4115 52,5 2,32 29,4 78,5 3,46 60,4 81,3 3,59 64,4

20 47,8 2,11 24,8 71,4 3,15 51,0 74,0 3,27 54,4

0202

10 85,9 3,79 14,3

4

134,0 5,92 31,9

14

164,0 7,23 45,7

2515 78,9 3,48 12,3 123,0 5,40 27,4 150,0 6,63 39,1

20 71,9 3,18 10,4 112,0 4,95 23,1 137,0 6,03 33,0

0252

10 96,9 4,28 17,8

6

149,0 6,58 38,6

16

176,0 7,78 52,2

3115 89,0 3,93 15,3 137,0 6,04 33,0 162,0 7,13 44,6

20 81,1 3,58 12,9 124,0 5,50 27,9 147,0 6,49 37,7

0302

10 105,0 4,63 20,5

7

160,0 7,06 43,8

22

182,0 8,05 55,5

3415 96,3 4,25 17,6 147,0 6,48 37,6 167,0 7,38 7,5

20 87,7 3,87 14,9 134,0 5,90 31,7 152,0 6,72 40,0

0352-0364

10 117,0 5,18 25,1

10

178,0 7,84 52,9

31

185,0 8,15 56,7

3515 108,0 4,76 21,5 163,0 7,19 45,3 169,0 7,48 48,6

20 98,1 4,34 18,2 148,0 6,54 38,2 154,0 6,80 41,0

0404

10 126,0 5,57 28,6

12

187,0 8,25 57,9

37

187,0 8,25 57,9

3715 116,0 5,12 24,6 171,0 7,56 49,6 171,0 7,56 49,6

20 106,0 4,66 20,7 156,0 6,88 41,8 156,0 6,88 41,8

0454

10 164,0 7,23 24,2

7

251,0 11,10 52,8

22

375,0 12,15 62,2

2815 150,0 6,64 20,9 231,0 10,19 45,3 252,0 11,15 53,3

20 137,0 6,05 17,7 210,0 9,27 38,2 230,0 10,15 45,0

0504

10 171,0 7,57 26,5

7

262,0 11,57 56,9

24

285,0 12,59 66,2

3115 157,0 6,96 22,8 240,0 10,62 48,8 261,0 11,55 56,7

20 143,0 6,34 19,3 219,0 9,66 41,1 238,0 10,51 47,9

604

10 183,0 8,06 29,7

9

277,0 12,24 63,0

29

299,0 13,20 72,2

3615 168,0 7,41 25,5 254,0 11,23 53,9 274,0 12,12 61,8

20 153,0 6,75 21,5 231,0 10,23 45,6 249,0 11,02 52,1

Two-row hot water coil performance (water 80 - 60 °C)


WHISPER Enthalpy

HFC R410A

(1) For correct calculation of the available static pressure,subtract this value from the data for the basic unit.kWt = Heating capacitym3/h = Water coil flow-ratePa = Air coil pressure dropkPa = Water coil pressure drop

ModelRet. air

°C

Reduced air flow-rate Rated air flow-rate Higher air flow-rate

kWt

Water Air

kWt

Water Air

kWt

Water Air

m3/h kPa Pa (1) m3/h kPa Pa

(1) m3/h kPa Pa (1)

0102

10 55,1 2,43 15,4

8

87,5 3,87 35,5

24

93,5 4,13 39,9

2915 50,7 2,24 13,2 80,4 3,55 30,5 85,9 3,79 34,3

20 46,2 2,04 11,2 73,3 3,24 25,8 78,2 3,46 29,0

0122

10 62,0 2,74 19,1

10

98,3 4,35 43,8

33

104,0 4,58 48,2

3815 57,0 2,52 16,4 90,3 3,99 37,5 95,3 4,21 41,3

20 52,0 2,30 13,9 82,3 3,63 31,7 86,8 3,83 34,9

0151

10 66,4 2,93 21,6

12

105,0 4,62 48,8

39

110,0 4,84 53,1

4415 61,0 2,70 18,5 96,0 4,24 41,9 101,0 4,45 45,6

20 55,7 2,46 15,7 87,4 3,86 35,4 91,7 4,05 38,6

0182

10 76,5 3,38 27,8

17

118,0 5,21 60,7

55

123,0 5,41 65,0

6115 70,3 3,11 23,9 108,0 4,79 52,1 113,0 4,97 55,7

20 64,1 2,83 20,3 98,6 4,36 44,0 102,0 4,52 47,0

0202

10 112,0 4,93 12,1

6

180,0 7,97 28,7

21

224,0 9,88 42,2

3715 103,0 4,53 10,4 166,0 7,32 24,6 205,0 9,08 36,2

20 93,7 4,14 8,8 151,0 6,68 20,8 187,0 8,27 30,6

0252

10 127,0 5,62 15,3

9

202,0 8,93 35,2

28

242,0 10,70 48,7

4615 117,0 5,17 13,2 186,0 8,20 30,2 222,0 9,82 41,7

20 107,0 4,72 11,1 169,0 7,84 25,5 202,0 8,94 35,2

0302

10 139,0 6,12 17,8

11

218,0 9,64 40,4

34

251,0 11,09 52,0

5115 127,0 5,63 15,3 200,0 8,85 34,6 231,0 10,19 44,6

20 116,0 5,13 13,0 183,0 8,07 29,3 210,0 9,27 37,7

0352-0364

10 156,0 6,91 22,2

14

244,0 10,78 49,4

47

255,0 11,24 53,2

5315 144,0 6,35 19,0 224,0 9,90 42,4 234,0 10,32 45,7

20 131,0 5,79 16,1 204,0 9,02 35,8 213,0 9,40 38,6

0404

10 169,0 7,48 25,5

18

258,0 11,39 54,5

55

258,0 11,39 54,5

5515 156,0 6,87 21,9 237,0 10,46 46,8 237,0 10,46 46,8

20 142,0 6,26 18,6 216,0 9,52 39,5 216,0 9,52 39,5

0454

10 215,0 9,49 12,4

10

341,0 15,06 28,5

32

376,0 16,60 34,0

4215 198,0 8,72 10,7 313,0 13,83 24,4 345,0 15,23 29,1

20 180,0 7,96 9,0 285,0 12,59 20,7 314,0 13,88 24,6

0504

10 226,0 9,98 13,6

11

356,0 15,75 30,9

37

390,0 17,22 36,3

4715 208,0 9,18 11,7 327,0 14,46 26,5 358,0 15,82 31,1

20 189,0 8,37 9,9 298,0 13,17 22,4 326,0 14,41 26,3

604

10 242,0 10,68 15,4

13

349,0 16,73 34,4

43

411,0 18,13 39,8

5415 222,0 9,81 13,2 348,0 15,36 29,6 377,0 16,66 34,2

20 203,0 8,95 11,2 317,0 13,99 25,0 343,0 15,17 28,9

Three-row hot water coil performance (water 80 - 60 °C)


WHISPER Enthalpy

HFC R410A

ELECTRIC COIL (optional)

Unit/electric coil combinations

UNIT SIZE Heatingcapacity Steps 0102 0122 0152 0182 0202 0252 0302

ELECTRIC COIL SIZE [kW] [no]

7 7,2 1 X X X X

12 12,0 2 X X X X X X X

18 18,0 2 X X X X X X X

27 27,0 2 X X X

36 36,0 2

45 45,0 2

UNIT SIZE Heatingcapacity Steps 0352 0364 0404 0454 0504 0604

ELECTRIC COIL SIZE [kW] [no]

7 7,2 1

12 12,0 2

18 18,0 2 X X X

27 27,0 2 X X X X X X

36 36,0 2 X X X X X X

45 45,0 2 X X X

Three-phase power supply with star connection, no neutral


WHISPER Enthalpy

HFC R410A

STEAM HUMIDIFIER (optional)

Unit/humidifier combinations

UNIT SIZE Powerconsumption

Steamproduction 0102 0122 0152 0182 0202 0252 0302

HUMIDIFIER SIZE [kW] [kg/h]

UM 03 2,3 3 X XUM 05 3,8 5 X X X X X X XUM 08 6 8 X X X X X X XUM 10 7,5 10 X X X X X X XUM 15 11,2 15 X X XUM 25 18,8 25 X X XUM 35 26,3 35

UM 45 33,8 45

UNIT SIZE Powerconsumption

Steamproduction 0352 0364 0404 0454 0504 0604

HUMIDIFIER SIZE [kW] [kg/h]

UM 03 2,3 3

UM 05 3,8 5

UM 08 6 8

UM 10 7,5 10 X X X X X XUM 15 11,2 15 X X X X X XUM 25 18,8 25 X X X X X XUM 35 26,3 35 X X X X X XUM 45 33,8 45 X X X X X X


WHISPER Enthalpy

HFC R410A

WHISPER Enthalpy units can be fitted with systems for heating air before discharging it into the room as a results of our company’s decision to supply a highly reliable product capable of completely conditioning a room and offering a constant level of comfort. The traditional techniques used for this purpose, hot water or electric heaters, can be replaced by a gas-fired heat module, that is a purpose-built air heater incorporated into the Roof Top unit. This solution is useful where there is no hot fluid, water or steam. Furthermore, the use of hot water coils causes greater heat dispersion due to the distribution of the fluid and the risk of the system freezing if it is not used during winter.Electric coils also reduce heat capacity, require high rated power inputs and generate high running costs. The WHISPER Enthalpy units can be fitted with a gas-fired heat module. In the heat pump versions, the module can be used to provide additional heat or as an alternative to the heat pump itself.

9. GAS-FIRED HEATING MODULE

Innovative technologiesThe innovative fumes condensation and modulating gas air premixing technologies offer heating modules featuring unprecedented energy saving. They allow gas consumption to be reduced by over 12% compared with conventional air heaters and drastically reduce polluting emissions.

Condensation technologyTo reduce energy losses due to the heat dispersed by fumes into the atmosphere, the discharge temperature is lowered by exploiting sensitive and latent heat (condensation heat of

vapour). The use of this technology offers heating modulesfeaturing elevated efficiency values: between 105% and 93.1% (min. and max. load) and very low emissions of pollutants: no carbon monoxide; NOx emissions less than 30 ppm. With reduced loads, an optimal air/gas ratio maximises the exploitation of the fumes condensation heat. The combustion chamber is totally made of AISI 430 stainless steel; the exchanger tubes and fumes manifolds are made of AISI 304L stainless steel in order to offer enhanced resistance to the products of condensation and relative acid compounds.

Modulating gas-air pre-mixing technology Conventional heat modules (the on/off type) alternate on and off periods to adapt their efficiency to the effective heat loadsrequired. This causes:- thermal shock;- ignition transients featuring low efficiency and high pollution;- elevated energy losses from the flue when the burner is off.

CLIMAVENETA uses modules fitted with modulating gas air premix burners. In these burners, suitable servo motors, governed by an electronic controller, premix air and gas

according to optimal ratios and adjust the total flow of the blend so as to obtain infinite heating output values within a wide operating range (1:3 / 1:5). With reduced loads, an optimal air/gas ratio maximises exploitation of fumes condensation heat.

Adjustment and controlThe heat module is fitted with an electronic card for controlling all management and adjustment functions. A second control card is used to adjust the heating output and modulates according to a 0..10 Vdc input signal from the Roof Top unit controller.


WHISPER Enthalpy

HFC R410A

Operating safetyThe module is built according to UNI, UNI-CIG and IEC standards and complies with the Gas Directive 90/396/ EEC (Independent Certification Body GASTEC); The hermetic combustion chamber and exchanger tubes make sure that the flows of conditioned air and combustion products are completely separated;Two manual reset safety thermostats prevent high temperaturesfrom being reached in the case of faults; a safety pressure switch, instead, cuts in if the fumes duct is obstructed.

The products of combustion and the air being conditioned nevercome into contact.

AccessoriesThe heat module is compatible with natural gas. A rapid conversion kit for Liquefied Petroleum Gas (LPG) is supplied standard.This is very useful when the gas mains has not yet been connected at the building site and the system requires testing.

Unit / heating module combinations

UNIT SIZEMin.heat

output

Max.heat

output0102 0122 0152 0182 0202 0252 0302

HEATING MODULE SIZE [kW] [kW]

MT 50 16,3 54 STD STD X X X X X

MT 70 23,1 73,2 X X STD STD X X X

MT 90 31,5 93,4 STD STD STD

MT 150 46,3 145

MT 200 55,7 197

Model 0102 0122 0152 0182 0202 0252 0302Heating module MT 50 MT 70 MT 90

Increased length [mm] 1360

Increased weight [kg] 320 360 550

Model 0352 0364 0404 0454 0504 0604Heating module MT 150 MT 200

Increased length [mm] 2030

Increased weight [kg] 660

UNIT SIZEMin.heat

output

Max.heat

output0352 0364 0404 0454 0504 0604

HEATING MODULE SIZE [kW] [kW]

MT 50 16,3 54

MT 70 23,1 73,2

MT 90 31,5 93,4

MT 150 46,3 145 STD STD STD STD STD X

MT 200 55,7 197 X X X X X STD

STD = Standard, X = possible combination

For different heating module/unit combinations please contact our sales office.

Warning: the equipment on the basic unit with the gas-fired heating module option increased in size, as follows:


WHISPER Enthalpy

HFC R410A

UNIT SIZE 0102 0122 0152 0182 0202 0252 0302

HEATING MODULE SIZE MT 50 MT70 MT90

Rated air flow-rate [m3/h] 6.500 7.800 8.600 10.500 13.000 15.500 17.500

No. of modules [no.] 1 1 1

Min. heat output [kw] 16,3 23,1 31,5

Min. natural gas flow-rate [m3/h] 1,6 2,3 3,2

Gas supply pressure [mbar] 20 20 20

Max. heat output [kw] 54 73,2 93,4

Max. natural gas flow-rate [m3/h] 6,1 8,3 10,4

Gas supply pressure [mbar] 20 20 20

Heating performance

UNIT SIZE 0352 0364 0404 0454 0504 0604

HEATING MODULE SIZE MT150 MT200

Rated air flow-rate [m3/h] 21.000 2.100 23.500 27.000 29.000 32.000

No. of modules [no.] 1 1

Min. heat output [kw] 46,3 55,7

Min. natural gas flow-rate [m3/h] 4,7 5,6

Gas supply pressure [mbar] 20 20

Max. heat output [kw] 145 197

Max. natural gas flow-rate [m3/h] 16,4 22,8

Gas supply pressure [mbar] 20 20


WHISPER Enthalpy

HFC R410A

10. OPERATING LIMITS

To = Air temperature [DB] at the OUTDOOR heat exchanger inletTa = Air temperature [WB] at the INDOOR heat exchanger inlet

To = Air temperature [WB] at the OUTDOOR heat exchanger inletTa = Air temperature [DB] at the INDOOR heat exchanger inlet

OPERATING LIMITS IN COOLING MODE

OPERATING LIMITS IN HEATING MODE

OPERATING LIMITS CALCULATEDIN THE FOLLOWING CONDITIONS:- Standard air flow-rate- Correct installation and use of the unit - Unit in steady operating conditions

SIZES 0102-0122

Ta [°C]

To [°C]

To [°

C]

Ta [°

C]

-10

30

25

20

15

10

5

0

-5

-10

-5 0 5 10 15 20 25

40

35

30

25

20

15

10

5

45

5 10 15 20 25 30

0

50

Ta [°C]

To [°C]

To [°

C]

Ta [°

C]

-10

30

25

20

15

10

5

0

-5

-10

-5 0 5 10 15 20 25

40

35

30

25

20

15

10

5

45

5 10 15 20 25 30

0

50


WHISPER Enthalpy

HFC R410A

10. OPERATING LIMITS

To = Air temperature [DB] at the OUTDOOR heat exchanger inletTa = Air temperature [WB] at the INDOOR heat exchanger inlet

To = Air temperature [WB] at the OUTDOOR heat exchanger inletTa = Air temperature [DB] at the INDOOR heat exchanger inlet

OPERATING LIMITS IN COOLING MODE

OPERATING LIMITS IN HEATING MODE

OPERATING LIMITS CALCULATEDIN THE FOLLOWING CONDITIONS:- Standard air flow-rate- Correct installation and use of the unit - Unit in steady operating conditions

SIZES 0152-0604

Ta [°C]

To [°C]

To [°

C]

Ta [°

C]

-10

30

25

20

15

10

5

0

-5

-10

-5 0 5 10 15 20 25

40

35

30

25

20

15

10

5

45

5 10 15 20 25 30

0

50

Ta [°C]

To [°C]

To [°

C]

Ta [°

C]

-10

30

25

20

15

10

5

0

-5

-10

-5 0 5 10 15 20 25

40

35

30

25

20

15

10

5

45

5 10 15 20 25 30

0

50


WHISPER Enthalpy

HFC R410A

11. SOUND LEVELS

Reference conditionsCooling:Outside 35°C 50% RH - Inside 26°C 52% RH - Mixture 30%

(1) Sound power: based on measurements performed in accordance with ISO3744.

The fan sound power level spectra are supplied by the manufacturer.

SizeAir

flow-ratem3/h

Soundpower

dB(A) (1)

Octave band [Hz] at 10 m63 125 250 500 1000 2000 4000 8000

Sound power level [dB]0102 6.500 88 95 89 91 85 83 77 71 650122 7.800 89 95 89 91 86 84 78 72 660152 8.600 90 95 90 92 86 85 79 72 670182 10.500 91 96 92 93 87 86 80 74 680202 13.000 94 91 99 94 89 90 84 77 720252 15.500 94 92 100 94 89 90 84 77 720302 17.500 94 93 101 95 90 90 85 78 720352 21.000 95 95 102 96 91 90 85 78 720364 21.000 95 95 102 96 91 90 85 78 720404 23.500 96 96 104 97 92 91 85 79 730454 27.000 97 98 101 98 93 92 87 80 750504 29.000 97 99 102 98 93 93 88 81 760604 32.000 98 100 102 99 95 94 89 82 76

SizeAir

flow-ratem3/h

Soundpower

dB(A) (1)



TOTAL UNIT SOUND POWER

RETURN FAN SOUND POWER


WHISPER Enthalpy

HFC R410A

11. SOUND LEVELS

SizeAir

flow-ratem3/h

Soundpower

dB(A) (1)



SUPPLY FAN SOUND POWER

Reference conditionsCooling:Outside 35°C 50% RH - Inside 26°C 52% RH - Mixture 30%

(1) Sound power: based on measurements performed in accordance with ISO3744.

The fan sound power level spectra are supplied by the manufacturer.


WHISPER Enthalpy

HFC R410A

12. DIMENSIONAL DRAWINGSSingle external coil unit

Double external coil unit

2000

2000

1500

AB

H

2500

2500

1500

AB

H

ModelDimensions and weight

A B H weight[mm] [mm] [mm] [kg]

102 4.350 1.700 1.630 1.290122 4.350 1.700 1.630 1.320152 4.350 1.700 1.630 1.380182 4.350 1.700 1.630 1.400202 4.500 2.250 2.390 2.170252 4.500 2.250 2.390 2.230302 4.500 2.250 2.390 2.280352 5.295 2.250 2.390 2.750364 5.295 2.250 2.390 2.860404 5.295 2.250 2.390 2.880

ModelDimensions and weight

A B H weight[mm] [mm] [mm] [kg]

454 6.500 2.250 2.390 3.360504 6.500 2.250 2.390 3.450604 6.500 2.250 2.390 3.500

Dimensions and weight refer to the unit in the standard configura-tion. Width A refers to the unit without brackets.

Dimensions and weight refer to the unit in the standard configurationWidth A refers to the unit without brackets.

www.climaveneta.com

Climaveneta S.p.A. Via Sarson 57/c 36061 Bassano del Grappa (VI) Italy Tel +39 0424 509500 Fax +39 0424 509509 [email protected] www.climaveneta.com

Climaveneta France 3, Village d’Entreprises ZA de la Couronne des Prés Avenue de la Mauldre 78680 Epone France Tel +33 (0)1 30 95 19 19 Fax +33 (0)1 30 95 18 18 [email protected] www.climaveneta.fr

Climaveneta Deutschland Rhenus Platz, 2 59439 Holzwickede Germany Tel +49 2301 91222-0 Fax +49 2301 91222-99 [email protected] www.climaveneta.de

Climaveneta Espana - Top Clima Londres 67, 1° 4° 08036 Barcelona Spain Tel +34 963 195 600 Fax +34 963 615 167 [email protected] www.climaveneta.com

Climaveneta Chat Union Refrig. Equipment Co Ltd 88 Bai Yun Rd, Pudong Xinghuo New dev. zone 201419 Shanghai China Tel 008 621 575 055 66 Fax 008 621 575 057 97

Climaveneta Polska Sp. z o.o. Ul. Sienkiewicza 13A 05-120 Legionowo Poland Tel +48 22 766 34 55-57 Fax +48 22 784 39 09 [email protected] www.climaveneta.pl

Climaveneta India Climate Technologies (P) LTD #3487, 14th Main, HAL 2nd stage, Indiranagar, Bangalore 560008 India Tel +91-80-42466900 - 949 Fax +91-80-25203540 [email protected]

Climaveneta UK LTD Highlands Road,Shirley SolihullWest Midlands B90 4NLTel: +44 (0)871 663 0664Fax: +44 (0)871 663 1664Freephone: 0800 801 [email protected]

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