1 Close Control Units. 2 Amico 3 Amico Range 4 CW: chilled water units DX : direct expansion units...

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Close Control Units

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Close Control Units

Amico

4

Amico Range

CW: chilled water units

DX : direct expansion units

CW units nominal cooling power: room conditions 24°C / 50% RH chilled water temp. 7/12 °C

DX units nominal cooling power: room conditions 24°C / 50% RH refrigerant R407C condensing temp. 48°C (air-cooled) water temp. in/out 26/31°C (water- cooled)

DX

CWLEONARDO MAX

DX

CW LEONARDO

DX

CWAMICO

5 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160

5

Up-flow Up-flow with

rear or bottom suction Down-flow with

upper or frontal suction

Air flow configuration

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Every component can be replaced directly from the front.

Full front access

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mm SDC

0200 0250 03000400

0600

mm SD.A-W-G

01510251

0331 0351 05010601

A1 550 700 850 1200

B 1740 1740 1740 1740

C 450 450 450 450

C1 430 430 430 430

D *) 700

1. Unità con aspirazione frontale (opzionale);2. Unità con aspirazione dall’alto (versione standard).*) Spazio minimo necessario per la manutenzione.

B

A1

D

C

1

2

C1

Fig. 4.a

Con presa d'aria esterna opzionale

SDC

0200 0250 0300 0400 0600

kg 98 115 148 155 210

SD.A-W-G

0151 0251 0331 0351 0501 0601

kg 132 132 150 185 260 260

Small depth (450 mm)

With fresh air filter connection

*minimum space for maintenance

Compactness

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Frontal and Rear panel painted with RAL7037epoxy-polyester paint

All panel lined with dust and fibre free self-extinguishing thermoacustic isolation

Double front panels to allow the access inside the unit also during its functioning.

Frame and panels

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housed in a compartment isolated from air flow

easy access

quickly control replacement

Electrical panel

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centrifugal double inlet fan

forward curved blades

direct driven

galvanised steel

manual adjustable air flow rate according to environmental

factors

low airflow alarm differential pressure switch

N.B.: minimum speed set automatically during the

dehumidification cycle

as an option: High head pressure fans for ducted applications (up to 150Pa)

Fan section

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Air-cooled

Water-cooled

Upflow / Downflow

Scroll compressor

Centrifugal fan(s)

R407C (R22 on request)

Versions:

cooling only: C

cooling and electrical heating: T

cooling and humidification: D

cooling, electrical heating and humidification: H

S*A

S*W

SUA-SUW / SDW-SDW

Direct expansion

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scroll compressor

liquid receiver

filter dryer

liquid sight glass

thermostatic expansion valve

high (manual reset) and low pressure switches

Direct expansion

Refrigerant circuit

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Air cooled Water cooled

external condenser stainless steel brazed plate type condenser

Direct expansion

Refrigerant circuit

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downflow

upflow

3 way modulating valve (2 way as option)

centrifugal fan(s)

Versions:

cooling only: C

cooling and electrical heating: T

cooling and humidification: D

cooling, electrical heating and humidification: H

SDC

SUC

Chilled water

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HOT WATER REHEAT (*)

1 row coil with copper tube and aluminium fins downstream the cooling coil

aluminium fins elements safety thermostat with manual resetting to prevent overheating (alarm event) capacity up to 6 kW (according to the model) in one stage as standard enhanced capacity in three stages on request

(*) available also in addition with standard electric reheat

HOT GAS REHEAT (*)

2 way modulating valve energy saving

Electrical reheat

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Close Control Units

Amico

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Precision & Reliability

•Precision & Reliability

•Constant Temperature & Humidity

•Total Reliability

•Active & Passive safety

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• Scroll Compressors

• Backward Curved Fan with Asynchronous motor (traditional)

• Backward Curved Fan with technology EC ( brushless)

•Electronic Expansion Valve integrated with Uniflair control

Energy Efficiency

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• Energy Saving versions, to exploit for the most possible time the ability to provide Free Cooling energy

• Versions with Tandem compressors to increase units efficiency at partial loads

• Optimisation of Air Flow configuration of the units to reduce pressure drop

Energy Efficiency

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SHR close to 1 and Net Sensible Capacity are distinctive parameters of Leonardo Evolution in comparison with our competitors.

Sensible Heat RatioThe primary objective of Precision Air Conditioning must be to dissipate the real heat load in the space. Any unwanted latent cooling (dehumidification) provides no useful service to the equipment being cooled and is a considerable waste of energy.

Energy Efficiency

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SHR close to 1 and Net Sensible Capacity are distinctive parameters of Leonardo Evolution in comparison with our competitors.

Net Sensible CapacityLeonardo Evolution has been developed to optimise the real contributions to the equipment cooling capacity, that is represented by Net Sensible Capacity, getting as Sensible Capacity – fan power absorption.

Energy Efficiency

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Leonardo Evolution secure an highly configurations versatility:

Two different fan configurations with backward curved fan, with standard or EC technology A range of filter types and grades

Different acoustic linings for the panels

Versions available with one or two independent refrigerant circuits

Service clearance cut to the minimum

Frontal access for all components

Versatile Configurations

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Air Flow Configurations – Upflow Units


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Air Flow Configurations – Downflow Units

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Precision Air Conditioning

70 – 110 kW (Direct Expansion)90 – 165 kW (Chilled Water)

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Leonardo Max – Range Extension

Leonardo Max is developed to extend and

apply to the higher part of Uniflair Precision

air conditioning range the top class standard

features of Leonardo.

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Leonardo Max – Targets

• Extend Leonardo range standard features

• Compatibility with High Density Cooling

Solutions

• High energy efficiency in each running condition

• Compact Dimensions

• Innovative Solutions

• Maximum Quality

• Maximum reliability

• Minimum maintenance

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Energy Efficiency

•Scroll Compressors in tandem configuration

• Backward Curved Fan with Asynchronous motor (traditional)

• Backward Curved Fan with EC technology

•Electronic Expansion Valve integrated with Uniflair control

•R410A refrigerant available as an option on T*A* models

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Leonardo Max secure an highly configurations versatility:

•Two different configurations of backward curved fan, with standard or EC technology

•A wide range of filter types and grades

•Different acoustic linings for the panels

•Versions available with one or two compressors each refrigerant circuit

•Service clearance cut to the minimum

•Frontal access for all components

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Leonardo Max – Chilled Water Range

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Compact Dimensions – Chilled Water

TDC*-TUC*2700: 2170 x 865 x 1960(h) mm

TDC*-TUC*3400-4000: 2580 x 865 x 1960(h) mm

TDC*-4300 High Efficiency: 2580 x 865 x 2170(h) mm

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Leonardo Max – Chilled Water

Backward Curved Fan with Asynchronous motor or by Electronic Commutation

Possibility of fan speed adjustment depending on External Static Pressure demand and air flow

Orifice Plate for balancing of By-pass.

Possibility of regulation based on discharge temperature

Possibility of interface with AFPS system

Focus on high SHR and NET sensible Cooling Capacity

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Leonardo Max – Direct Expansion Range

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Compact Dimensions – Direct Expansion

All TD** models: 2580 x 865 x 2175(h) mm

All TU** models: 2580 x 865 x 1960(h) mm

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Leonardo Max – Direct Expansion

All models available in Upflow and Downflow configuration

R410A refrigerant optionally available on all T*A* models

All models (**42) available with Tandem compressors

Electronic Expansion Valve as a standard operated by microprocessor

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Leonardo Max – Direct Expansion

Backward Curved Fan with Asynchronous motor or by Electronic Commutation

Possibility of fan speed adjustment depending on External Static Pressure demand and air flow

Airflow pattern engineered in order to maximize performances and reduce pressure drops

All Energy Saving, Twin Cool and Water Cooled units equipped as a standard with Tandem compressors

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Compact Dimensions

Special attention has paid to:

•dimensions

•Handlings & logistic

•installation

•Accessibility for maintenance

Leonardo as result is:

•Compact

•Completely full frontal accessible for Maintenance

•Low weight

•Quick and simple to install, and easy to manoeuvre even in confined spaces•Easy to access for maintenance

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Uniflair has always dedicated particular attention to equipping its units with sophisticated controls and management software,conceived, developed,implemented and tested by UNIFLAIR itself.The control system allows an absolute reliability, a complete flexibility with elevated performances

Intelligence at heart – UG40

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Monitoring of all components• Possibility to memorize the last 100 events of alarm• input in emergency situations• Twin-Cool units: Facility of commutation from CW to DX through: digital imput or regulation from supervision• Display of Tev and Pev, overheating, compressor


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• Integral management of the EEV

• Optimisation of the energetic saving

• Ensure constant air flow in the phase of dehumidification

• Absolute operating stability

• Integrated LAN as standard

• Possibility to input a double set-point

•2 outputs of flexible configurable alarms

•Automatic or manual resetting of alarms


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Uniflair propose the remote control of entire installations in a central point by a connection to the centralized supervision systems.

Connectivity – Uniflair Supervision

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Uniflair units have been designed and developed to interact with all the most widely used Building Management Systems, exchanging data via the most common communication protocols through serial connections, Local Area Networks, Ethernet or modem links.

Connectivity

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Main distinguished elements are:

• Integrated MODBUS protocol (with serial card RS 485)

• Compatibility with TREND standard

• Wide connectivity to the most common communication protocols

PROTOCOLS• Modbus

• BACnet

• LON

• Metasys

• Trend

• SNMP (TCP/IP)

Connectivity

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Uniflair’s commitment to 5% of annual turnover in R&D has resulted in 2000 m2 of research and testing facilities.

The center has three climatic rooms and a laboratory for access floors

Outstanding Performance

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Close Control Units

Energy Saving Solutions

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Leonardo Max presents an High ratio between Net Sensible Capacity and Fan Motor Heat Gains.

Leonardo Maximize the Energy Saving implementing innovative solutions:

•Electronic Expansion Valve (EEV)

•EC Fans (Electronic Commutation)

•Free Cooling

•Tandem Compressors

•R410A

Energy Saving – Innovative Solutions

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Leonardo Max presents an High ratio between Net Sensible Capacity and Fan Motor Heat Gains.

Leonardo Maximize the Energy Saving implementing innovative solutions:



•Free Cooling


•R410A

Energy Saving – Innovative Solutions

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Leonardo Innovative Solutions can be a strong sales tool.

Key point of the success:


•Intelligent Dehumidification



•Supervisioning System Integration

•Custom made engineering

Innovative Solutions

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Leonardo Max presents as standard electronic expansion valve managed and optimized by on-board microprocessor. That allow the monitoring of all functional parameters of the cycle and their optimization in terms of maximum energy saving. This item permit to:

• Optimize the overheating

• Operate at lower condensation temperature respect to those permitted by normal thermostatic valves and thus increase unit COP

• Regulate the operative temperature with high accuracy

• Perform dehumidification keeping constant air flow

Electronic Expansion Valve

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Possibility to control superheating in a stable way in all running conditions, avoiding sudden variations typical of electromechanical thermostatic valves, due to a dedicated regulation.


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Under the control of UNIFLAIR Control System, the electronic expansion valve provides accurate control in order to ensure an increase in the COP at low external temperatures, because it enables the unit to operate at a condensing temperature much lower than 38°C dew point, making the most of compressor working range.


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One important characteristic of Leonardo Max is that the dehumidification is achieved without a reduction in the airflow rate.Direct expansion Leonardo units use an innovative system of dehumidification by means of the electronic expansion valve and Uniflair’s exclusive control software


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Brushless electronically commutated fans implemented on Leonardo Max give great benefits in terms of:

Very high reliability (brushless)

High performance with low noise

Starting current lower than nominal current

Continuous fan speed regulation from the microprocessor

Electronic Commutation Fans

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Lower absorbed power respect to asynchronous motor, by 15% at full load and 45% as average, in a Uniflair CW unit.

EC - Electronically Commutated fans

-34%-38%

-63%

-46% -44%

0,0

1,0

2,0

3,0

4,0

5,0

6,0

1000 1200 1700 2000 2500

Ab

sorb

ed p

ow

er [

kW]

-100%

-90%

-80%

-70%

-60%

-50%

-40%

-30%

-20%

-10%

0%

BCF EC-fans BCF fans delta %

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Lower absorbed power respect to asynchronous motor, by 15% at full load and 60% as average, in a Uniflair DX unit.

EC - Electronically Commutated fans

-64% -64% -64% -64% -64% -64%

-73% -73% -73% -73%

-44%

-36% -36%

0

0,5

1

1,5

2

2,5

3

3,5

4

4,5

5

721 722 921 922 1021 1022 1121 1122 1321 1322 1422 1622 1822

Ab

sorb

ed p

ow

er [

kW]

-100%

-90%

-80%

-70%

-60%

-50%

-40%

-30%

-20%

-10%

0%

BCF EC-fans BCF fans delta %

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Lower absorbed power respect to asynchronous motor, in a Leonardo Max Chilled Water unit.


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Lower absorbed power respect to asynchronous motor, in a Leonardo Max Direct Expansion unit.


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Heat load can be extremely variable during working day and during one year

Tandem

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Units with **42 suffix are provided with 2 compressors in parallel in the same refrigerant circuit and are supposed to be used during part-load.

Tandem

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During part-load running, these versions increase their COP because exchange coils are dimensioned for full load power.

Tandem

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Leonardo Max offers the possibility to select units with indirect Free Cooling system, this giving the advantage to achieve a great running cost reduction, at the same time keeping separated the internal environmental from the external, so it is able to continue to guarantee stable humidity and air quality in the space.

Energy Saving

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Free Cooling

Leonardo Evolution offers the possibility to select units with indirect Free Cooling system, this giving the advantage to achieve a great running cost reduction, at the same time keeping separated the internal environmental from the external, so it is able to continue to guarantee stable humidity and air quality in the space.

Total energy cost of Energy Saving unit

Energy saving compared to unit without Energy Saving

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Free Cooling – Energy saving

Total energy cost of Energy Saving unit

Energy saving compared to unit without Energy Saving

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Leonardo Max offers the possibility to select units with indirect Free Cooling system, this giving the advantage to achieve a great running cost reduction granting a small period of pay back.

Energy Saving

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Energy Saving

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Interlaced Coils

Interlaced Coils(DX e CW ranks interconnected)

Sequence coils(competitors)

bigger exchange surface (both on CW and DX side) increase of Tev in DX mode compact dimensions less pressure drop air side

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Interlaced coil is used as standard on units TC & ES

Section of Interlaced Coil

Interlaced Coils

Chilled water section

Direct expansion section

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Close Control Units

1 Close Control Units. 2 Amico 3 Amico Range 4 CW: chilled water units DX : direct expansion units...

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