Polyvalent systems: the energy-saving evolution

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Polyvalent systems:

the energy-saving

evolution

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Innovation

is our DNA

The assurance of a quality product is obtained by means of thorough tests in the R&D Lab, one of the largest testing labs in Europe. Every Rhoss unit is subjected to rigorous operating tests before being launched on the market, simulating the most extreme operating conditions. EXP Systems is the polyvalent ecological system designed by RHOSS to satisfy cold and hot water demands simultaneously or independently with a single unit. It is designed for use in 2, 4 and 6-pipe systems, at any time of year. An entire range with air and water cooled from 5 to

800 kW with TER* index up to 8.33. The offer includes new Class A models with high

ESEER efficiency with partial loads.

Over 15 years'

experience

Hundreds of systems built in the last 15 years with poly-valent units in residential and commercial buildings, office buildings, industrial com-plexes, hospitals, clinics and accommodation in general.

Efficient technology

EXP Systems allows a complete air conditioning system to be set up with domestic hot water production, there-by obtaining a double result with a sin-gle unit and one expense, and guaran-teed high performance from the energy supplied by the compressor in terms of energy efficiency.

Versatile system

EXP Systems is a fourth-generation heat pump that produces hot and chilled water, combined or inde-pendently, for 4-pipe and 2-pipe sys-tems with domestic hot water produc-tion.

Reliable unit

Thanks to its innovative control logic, EXP Systems meets the cooling and heating requirements by minimizing the stops and restarts of the compressor resulting in the beneficial effect on the duration of all the components of the cooling circuit.

Flexible installation

EXP Systems is adaptable for various system installation requirements thanks to its several configurations and accessories that make it plug and play.

Ecological solution

EXP Systems can be defined as a polyvalent environmentally friendly unit because it represents the efficient evo-lution of the electric heat pump, in line with the most stringent European direc-tives. The high performance in the heat recovery mode further increases the difference compared to conventional installations, thereby reducing the di-rect and indidi-rect emissions that con-tribute to the greenhouse effect.

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Intelligent

solution for

real energy

saving

OFFICE OFFICE NORTH SOUTH

EXP Systems is the intelligent solution to air conditioning requirements in systems where the heating demand is simultaneously or independently combined with a cooling request.

The units adapt well to various types of systems, thereby guaranteeing unique efficiency and versatility.

Selecting the most suitable unit for your system is simple since there are 25 air-cooled models and 27 water-cooled models to choose from with scroll and screw technology with R410A and R134a gas respectively.

Analysis carried out on a office building located in Milan, comparing the annual consumption of a polyvalent EXP Systems TXAVBZ 2550 unit at 550 kW with those of a conventional system consisting of a water chiller for summer/winter air conditioning and a boiler for heating. 0 30.000 40.000 50.000 60.000 70.000 80.000 €/y ear ■ EXP ■ CHILLER+BOILER Cost of electricity: 0.175 €/kWh Cost of methane: 0.82 €/Nmc

-25%

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EXP Systems is today's technology that guaran-tees the most efficient solution in combined operation of hot and chilled water production, and the TER index rep-resents the best value that characterises it. TER, the ratio between the total heating and cooling capacity sup-plied and the power ab-sorbed, reaches maxi-mum values when loads are balanced. 9 8 7 6 5 4 3 2 1 0 90 80 70 60 50 40 30 20 10 10 20 30 40 50 60 70 80 90 Cooling capacity % Heating capacity % TER

The graph highlights TER performance for a EXP Systems TXAETY 6520 unit in a standard 4-pipe system based on the requested load.

Conditions of reference: cold water 7°C, hot water 45°C and outdoor air temperature 15°C.

The units of the Y-PACK EXP, Y-FLOW EXP and WinPOWER EXP ranges, equipped with the revolutionary AF+ (Adaptive Function Plus), which is a Rhoss patent, allow the set point to be adapted according to the load of the system for additional energy savings.

TER: Total Efficiency Ratio

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2-pipe systems

AUTOMATIC

or

SELECT

mode

4 or 6-pipe systems

AUTOMATIC

mode throughout the year

EXP Systems units are designed to operate in 2, 4, and 6-pipe systems

of the new range.

This flexibility allows it to be used in several types of construction,

thereby allowing any subsequent change in the intended use.

The heart of the system is represented in the new electronic

control and control logic designed by Rhoss to meet all the system

requirements in 2 operating modes:

AUTOMATIC

and

SELECT

.

Often in residential cases, in homes with individual systems or apartment blocks with centralized systems, in hotels, nursing homes, gyms and accommodation structures in general, the air conditioning and air treatment requirements are accompanied by the need for domestic hot water production.

When the EXP Systems is configured for 2-pipe systems, it performs this task with maximum flexibility throughout the year. WinPOWER EXP units also have the option to produce hot water up to 70°C in another heat exchanger in any operation mode.

In office buildings and the service sectors, the modern air conditioning systems increasingly require simultaneous production of hot and chilled water.

Improved thermal insulation in structures, the increase in the heat loads due to the lighting and the presence of large windows, lead to the system having to cool certain areas while having to heat others during spring and autumn. In this case, when the EXP Systems is configured for 4-pipe systems, it represents a very convenient complete solution.

WinPOWER EXP units also have the option to produce hot water up to 70°C in another heat in order to meet modern 6-pipe system requests.

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EXP Systems

units for 2, 4

and 6-pipe

systems

2-pipe systems

AUTOMATIC

or

SELECT

mode

4 or 6-pipe systems

AUTOMATIC

mode throughout the year

SOUTH NORTH

HOT

WATER WATERCOLD WATERHOT

HOT

WATER WATERHOT

HOT WATER

COLD

WATER WATERCOLD WATERHOT

Summer

cooling

cooling and heating

Mid-season

Winter

heating

HOT

WATER WATERHOT

DOMESTIC HOT WATER COLD

WATER HOTWATER DOMESTIC HOTWATER

Summer “

AUTOMATIC

”

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EXP Systems TXAVQZ 2380 installed in Varese (Italy)

RHOSS R&D Lab:

Witness Test for

customised solutions

In continuously evolving systems with customised installation requests, Rhoss provides support and advice for the best suited units for the project. Competent technicians in the relative matter and technical and sales personnel follow the market and its trends, proposing solutions.

Rhoss offers the possibility to perform the test of the EXP Systems unit by setting up the R&D Lab. This allows the buyer to perform the simulation and verification of the EXP Systems unit in the actual operating conditions for which it was chosen and purchased.

Consultancy and technical support

for the designer

1

2

3

4

5

Selection of units in real operating

conditions

Evaluation of the construction

options and accessories according to

the system

Witness test for real performance

simulation of the unit in the final

destination of use.

Starting up units by qualified personnel

around the world

From the idea to

installation:

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EXP Systems TXHVIZ 2590 installed at Green Campus - University of Pavia (Italy)

Test in the R&D Lab for the qualification of a TXHVIZ 2590

Test in the R&D Lab for the qualification of a TXAVQZ 2380

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EXPsystems - Polyvalent ecological air-cooled system with axial fans. Range with hermetic Scroll compressors and R410A refrigerant gas.

WinPOWER EXP

- TXAEY 4400÷6660

Range 81÷334 kW

• Scroll compressors and gas R410A • TER up to 8.18

• EC-Brushless fans

Y-Pack EXP

- TXAEY 280÷4320

Range 33.8÷61.6 kW

• Scroll compressors and gas R410A

• Compact units

• Pump and Tank&Pump set-ups

Compact-Y EXP

- TXAEY 245÷265

Range 17.7÷29.1 kW

• Extremely compact units

• Plug&Play Installation

Compact-Y EXP

- TXAEY 117÷130

Range 408÷698 kW

• Screw compressors and gas R134a • TER* up to 8.33

• Shell tube and heat exchangers

Z-Power EXP

- TXAVZ 2420÷2700

• Polyvalent Class A units with TER

up to 7.9

• Extended operating limits

• Units for 2, 4 and 6-pipe systems

The WinPOWER EXP range was designed to guarantee maximum efficiency in any operating mode, be flexible and adapt itself to the best systems, and simplify installations with a wide range of accessories.

Compact-Y EXP

Y-Pack EXP

WinPOWER EXP

Z-Power EXP Nominal cooling power - kW (water 7/12°C, external temperature 35°C)

Air cooled product range

EXP Systems range

Rhoss views EXP Systems as a design philosophy established for over 15 years.

The ranges are organised in solutions with scroll and screw compressor with R134a and R410A gas, air-cooled and water-cooled in order to satisfy the several types of applications.

The EXP Systems units are designed to reach energy efficiency at high levels and guarantee fields of work that allow operation throughout the year.

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Range 410÷740 kW

• Screw compressors and gas R134a

• Exclusive design

• TER up to 8.3

Z-Flow EXP

- TXHVZ 2410÷2740

Range 47÷378.7 kW

• Compact units

• Wide range of equipment and accessories

Y-Flow EXP

- TXHEY 245÷4360

Range 5÷12 kW

• Extremely compact units

•Plug&Play Installation

Comby-Flow EXP

- TXHEY 105÷112

* TER Total Efficiency Ratio in total heat recovery mode AUTOMATIC 2.

Comby-Flow EXP

Z-Flow EXP Y-Flow EXP

Nominal cooling power - kW (water 7°C/12°C, condenser water 30/35°C)

Water cooled product range

Hot water production up to 70°C

The polyvalent EXP Systems units can produce hot water up to 55°C with various operating limits to meet the most modern system requirements.

In winter, air-cooled units with semi-hermetic screw compressors and R134a refrigerant gas reach outdoor air temperature limits of -10°C with hot water production up to 50°C.

The latest generation air-cooled units with scroll compressors and R410A refrigerant gas have been designed to produce hot water at 45°C during normal operation in winter with an outdoor air temperature of -10°C. As a result of the option to manage 6-pipe systems, WinPOWER EXP units can produce water up to 70°C in the dedicated heat exchanger.

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Bureaux R&D - Cesson Sevigne - FRANCE

Kingston College - London - UK

Laboratory Kutxa - Mondragón - SPAIN

Frere Hospital, East London - SOUTH AFRICA

HOTELS RESTAURANTS GUESTHOUSES RESIDENTIAL BUILDINGS RESIDENTIAL CONDOMINIUMS SPAS GYMS HOSPITALS CLINICS NURSING HOMES SERVICE SECTORS SHOPPING CENTRES

Where to use

EXP Systems

Solution for heating, cooling and domestic hot water production

• in new buildings

• in existing buildings with partial or complete replacement of the heating system

Suitable for terminals at medium or low temperature Ideal for:

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A FEW

PROjECTS

CARRIED

OUT

University residences - Trento - ITALY

Hospital - Skopje - MACEDONIA

Industrial laundry - Foggia - ITALY Aviation company - Bari - ITALY

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EXP Systems:

a wide range

of products

able to meet

LEED

®

credits

A few examples of product ranges mapped in 2015

EXPsystems - Polyvalent ecological air-cooled system with axial fans. Range with hermetic Scroll compressors and R410A refrigerant gas.

EXP Systems - Polyvalent ecological water-cooled system. Range with semi-hermetic screw compressors and R134a refrigerant gas.

EXP Systems - Polyvalent ecological water-cooled system. Range with hermetic scroll and gas compressors and R410A refrigerant.

EXPsystems - Polyvalent ecological air-cooled system with axial fans. Range with semi-hermetic screw compressors and R134a refrigerant gas.

Rhoss specific accessories and systems integration enable much better energy efficiency of products.

Accessories

Y-Pack EXP

WinPOWER EXP

Z-Flow EXP

Y-Flow EXP

Z-Power EXP

COMMISSIONING

Since it deals with commissioning a building, a single product is not directly involved. However, everything that can simplify commissioning oper-ations on-site is important. The Witness Test car-ried out in a Eurovent approved laboratory enables CxA (Commissioning Authority) to verify and vali-date operation of the unit with a full and/or partial load before delivery and installation. These opera-tions are not always easy to carry out on-site.

MINIMUM ENERGY PERFORMANCE The unit complies with the compulsory minimum efficiency requirements, which are calculated ac-cording to standard ARI 550/590, reported in table 6.8.1C of Standard ASHRAE 90.1-2010, and can thus be used again in a project that intends to ob-tain a LEED®_certificate.

ENERGY PERFORMANCE OPTIMISATION Energy optimisation concerns the building in its entirety, therefore, it is impossible to identify con-tribution in advance of a single unit in the overall calculation. However, units having performance features that are much better than the minimum set by the standard of reference can significantly contribute to reducing energy requirements of the building and thus get better points.

ENHANCED REFRIGERANT MANAGEMENT The unit individually meets the reference formula of LCGWP+LCODP*10^5<13, calculated by using the parameters of reference reported in the LEED® BD+C guide and in the ASHRAE Handbook - Ap-plications 2007. Please note that in order to obtain the credit points, the building must fulfil the formula in its entirely, combining and weighing the contri-butions of all units that contain more than 0.25 kg of refrigerant.

KEY:

WT Witness Test N.A. Not Applicable

• The unit meets the prerequisite criteria or credit/The accessory can help meet the prerequisite criteria or credit x The unit does not meet the prerequisite criteria or credit

* Contact Rhoss spa for information regarding the precise match of individual models of the range.

Being a LEED oriented company

means being constantly focused on

development and creation of a range

of products. It is a constant job and

commitment is needed in order to

guarantee quality products and high

energy efficiency.

Rhoss constantly carries out

in-house mapping and adjustment of its

own range according to LEED

®

spec-ifications, developing products and

systems that follow these specific

directives.

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Rhoss has analised the themes regarding the LEED®_{standard and checked the credit requirements requested, comparing} them with the characteristics of its own range of products and assessing which are able to meet the LEED®_{credit requirements} and in which way.

With regard to a study of the technical features of Rhoss products, a conformity analysis was carried out in relation to the re-quirements of the LEED®_standards.

Through this activity, Rhoss has acquired the necessary knowledge to meet LEED®_{requirements and professionally discuss the} themes with potential customers on an international level.

TXAETY 280-4320 WT • • WT • N.A. • N.A.

TXAESY 280-2130 WT • • WT • N.A. X N.A.

TXAETY 4400-6660 WT • • WT • N.A. • N.A.

TXHVBZ 2410-2500 WT • • WT • N.A. • N.A.

TXHVIZ 2410-2500 WT • • WT • N.A. • N.A.

TXHEBY 245-4360 WT • • WT • N.A. • N.A.

Prerequisites Credits

TXAVBZ 2420-2700 WT • • WT • N.A. N.A.

TXAVSZ 2420-2700 WT • • WT • N.A. • N.A.

Energy Meter • • • • DSP • CS • FDL • SS • • FTT10 • • EAp1

Commissioning e verifiche di base Fundamental commissioning & verific.

EAp2

Prestazioni energetiche minime Minimum energ

y performance EAp3 Contabilizzaz. energetica liv . edificio Building-level energ y metering EAp4

Gestione di base dei refrigeranti Fundamental refrigerant management

EAc1

Adv

anced commissioning

Enhanced commissioning

EAc2

Ottimizzazione prestazioni energetiche Optimize energ

y performance EAc3 Contabilizzaz. av anzata dell’energia Adv anced energ y metering EAc4

Risposta alla domanda Demand response

EAc5

Produzione di energie rinno

vabili

Renewable energ

y production

EAc6

Gestione av

anzata dei refrigeranti

Enhanced refrigerant management

EAc7

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RHOSS

S.P

.A.

disclaims any liability for any errors in this printout and shall be free to modify its

products' features without prior notice.

K10539EN

ed.2 - 04.16

RHOSS S.P.A.

Via Oltre Ferrovia, 32 - 33033 Codroipo (UD) - Italy tel. +39 0432 911611 - fax +39 0432 911600 [email protected] - www.rhoss.it - www.rhoss.com IR GROUP SARL

19, chemin de la Plaine - 69390 Vourles - France tél. +33 (0)4 72 31 86 31 - fax +33 (0)4 72 31 86 30 [email protected]

RHOSS Deutschland GmbH

Hölzlestraße 23, D-72336 Balingen, OT Engstlatt - Germany tel. +49 (0)7433 260270 - fax +49 (0)7433 2602720 [email protected] - www.rhoss.de

RHOSS GULF JLT

Suite Num: 3004, Platinum Tower Jumeirah Lakes Towers, Dubai - UAE tel. +971 4 44 12 154 - fax +971 4 44 10 581 e-mail: [email protected]

Sales offices Italy: Codroipo (UD)

33033 Via Oltre Ferrovia, 32

tel. +39 0432 911611 - fax +39 0432 911600 Nova Milanese (MB)

20834 Via Venezia, 2 - p. 2