nexa brochure

8/11/2019 Nexa Brochure

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ENTER THE WORLD

OF HEAT PUMPS

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Comfort with energy savings

HEATING

SUMMER COMFORT

DOMESTIC HOT WATER


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UNE OFFRE COMPLTE

CARRIER EXPERIENCE BACKED BYA LARGE GROUP

Carrier Corporation is a subsidiary of United Technologies Corporation(NYSE : UTX), which employs 200,000 people and is present in around180 countries throughout the world.

UTC is a global technology corporation with a long history of pioneering

innovation in aerospace, aviation, helicopter design, climate control,elevator design and hydrogen fuel cells.

Backed by the strength of UTC, Carrier is a rich source of ideas,technologies and innovation to help build a better world.

Since 14 years, Nexa designs, manufactures and distributes heatingsystems through Europe. Nexa is a pioneer in heating control forsystems with under floor heating.

With up to 100 solutions, from 5 to 300kW, Nexa is the specialist ofresidential thermal comfort at low energy cost. Nexa provides you asolution for each project, for new or existing building and apartment

blocks applications. Nexa is a subsidiary of Carrier Group, and profitsfrom technology skills of a world class Group.

Through our training centres, sales and after-sales teams, we provideprofessional installers withservices to bestmeetcustomers requirements.Installers work together with our network of after-sales stations whichhelp them to ensure the permanent maintenance of your installation.

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A COMPLETE OFFER


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YOUR HEAT PUMP

YOUR HYDRONIC MODULE+ YOUR TERMINAL UNITS

YOUR DOMESTIC HOT WATER PRODUCTION

+

= YOUR COMPLETE HEATING SYSTEMWhy choosing a Nexa heating system instead of a simple heat pump?A heating system provides heating and distributes it through the houseensuring comfort and energy efficiency. A heat pump only provides heating.Nexa systems integrates 100% of necessary components, from thegenerator to the terminal units control.The installation of a Nexa by Carrier system adds value to your house withcontributing to its global energy efficiency.By purchasing a Nexa by Carrier system, you benefit from a world classmanufacturer warranty for the entire system.

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SOL

AR PANELS

POSSIBLE

CONNECTION WITH

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his is the brain of the installation. All the

omponents are integrated in the hydronic

odule to ensure comfort and energy

avings. Depending on the model, the

ydronic module can incorporate

upplementary electric heaters or controls

her generators like boiler, for example inxisting buildings applications.

HYDRONIC MODULE

he heat pump allows you to become

dependent from the rising costs of fossil

nergy sources, and ensures you instant

nergy savings. is a mean to reduce up to 4 times your

eating bill and limit harmful your greenhouse

as emissions.

THE HEAT PUMP

A titanium plateheat exchanger is used to transfer the heat

from theheating generator (heat pump and/or boiler) to the

swimming pool.

The heat exchanger surface allows to heat a swimming

pool of 100 m3 to be heated.

SWIMMING-POOL HEATING

Make more energy savings with O line range !

Domestic hotwater production will be provided with energy efficiency :

- Performance : adapted to heat pump connections or self-sufficient,

- Comfort : Capacity from 150 to 280L

- Safety : Electronic anode and expansion vessel for tank protection

and antilegionella cycle.

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SOL

AR PANELS

POSSIBLE

CONNECTION WITH

DOMESTIC HOT WATER PRODUCTION


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YOUR SAVINGS

NEW -INVERTER

73,3%

26%

0,7%

AIR SOURCE SYSTEM

CLIMATIC DATA ANNUAL HEATING COST(Cost in )

RUNNING COST ANALYSIS(% of energy consumption)

Heat pump consumption

Back up

Free energy

City :DUBLIN- IRELAND

Heat load :12,18kW at -6C

Technology :Inverter

System :BSC06M115-A

Outdoor design temperature :-6

Outdoor average temperature :9,5C

Terminal unit :Under floor heating

House floor area :260m

1 396

1 798

2 302

3 854

HP +supplementaryelectric heater

Mainsgas

Heatingoil

Propanegas

ANNUAL HEATING COST CALCULATION:This estimation of annual running cost is done for a 20C indoor temperature 7 days a week, 24 hours a day during the entire heating season.Comparisons with other heating technology are done against high efficiency boilers and takes into account june 2006 energy prices available in localgovernment website.Thanks to our selection software, Nexa installer will provide you a running cost and pay back analysis fully in line with your needs.

RUNNING COSTANALYSIS*The following examples are done in

ifferent climate zones and for differentpplications.

t illustrates the energy savings .


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EXISTING-BOILER BACK UP

EXISTING - BOILER REPLACEMENT

*Informationsavailableinthedocumentareforevaluationonly.

Sizingandrunningcostshavetobedonebyaprofessional

foreachproject.Allinformationin

thisdocumenthavenolegalvalue.

Calculationinfo:insulationiscom

pliantwithRT2000

Frenchstandard,

itincludescontrolledventilation.

Runningcosttakesintoaccountenergypricesinfoa

vailableinlocalgo-

vernmentwebsiteinJune2009

.Climatedatasusedare2006onesandbenefitsofofftimeandecomodeisnottaken

intoaccount.

63%

34%

3%

AIR SOURCE SYSTEM



City :Paris - FRANCE

Heat load :9,29kW at -6C

Technology :Soft starter

System :TSR04M65-A

Outdoor design temperature :-6C


Terminal unit :Radiator


748

1 456

2 378

3 121


Mainsgas

Heatingoil

Propanegas

58,5%

41,1%

0,5%

AIR SOURCE SYSTEM



City :Lyon - FRANCE

Heat load :9,65 kW at -7C

Technology :High temp.

System :B200M10-AH REF

Outdoor design temperature :-7C


Terminal unit :Radiator


822

1 288

1 649

2 762


Mainsgas

Heatingoil

Propanegas


Back up

Free energy


Back upFree energy


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YOUR QUESTIONS

GROUND SOURCE ORAIR SOURCE?Climate in your area, investment costs, energy savings evaluation by comparison with others energy sources areclinchers to choose the most suitable heat pump type.

Your expert installer Nexa will recommend you the adapted product thanks to our simulation software.Ground source heat pumps are appropriate for use in homes situated in locations with cold climates wheretemperatures dip under -10C for a minimum time of 10 days. In this instance, the return of investment is similar toan air source heat pump.

WHAT IS THE BOILER BACK UP?

In existing houses, it is possible to keep your existing boiler - if it is in good condition- as a back up to amedium-temperature heat pump. The boiler provides domestic hot water and takes over from the heatpump for the coldest days of the year. It is a simple solution to save money quickly.Some of our indoor hydronic modules act as a back up to the boiler in case of boiler failure.

LOW OR HIGH TEMPERATURE?Each type of terminal unit (35C) has its own water temperature. Underfloor

heating operate at low temperature in opposition to old radiators whichoperates at high temperature (65C). The choice of heat pump technologywill be made according to terminal units.It is important to note that only low operating temperatures allow high heatpump performances.


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WHAT IS THECOP?The coefficient of performance is a measure of your heatpumps efficiency in standard operating conditions.A heatpump operating at 4 COP means that the heat pumpprovides 4kWh of heat for 1kWh of energy paid. Theseperformances are certified by certification companies, likeEurovent or NFPAC in France. Energy savings comemainly from the heat pump control of the hydronic module.

WHAT IS WEATHER COMPENSATION?

Whatever the heat pump technology, the lower is the hot water production temperature, the higheris the energy efficiency. Nexa hydronic module, controls the heat pump operating to modify the watertemperature according to the outside temperature. By this way, the heat pump provides very hot

water only when it is very cold outside.

INVERTER?Inverter air source technology

makes the heat pump operatingspeed varying according to theheating needs. This technologyis particularly adapted to housewith very low temperatureterminal units.

WHEN A HIGH TEMPERATURE HEAT PUMP IS ADAPTED?A high temperature heat pump is adapted to boiler replacement, when the drop in radiators operating

temperature is not possible.Whatever the heat pump technologies, the lower are water temperatures, the higher energy is theefficiency. Therefore, the weather compensating control is essential to reach the energy efficiency ofheating systems with medium and low temperature heat pumps.

ARE HEAT PUMPS LOUD?Nexa heat pumps make less noise than a fridge !And what about aesthetic aspects ? Nexa offers you a range of heat pump stickers (customized).With these stickers, heat pumps can be blend into the background.

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A COMPLETE OFFERAIR SOURCE HEAT PUMP

Reference PCRX06 PCRX08 PCRX11 PCRX15 PCRXS050 PCRXS065 PCRXS090 PCRXS115

Nominal heating capacity in heating mode* (kW) 6,40 8,70 11 14,50 5,05 6,65 9,06 11,52

Nominal absorbed power in heating mode* (kW) 1,64 2,35 2,64 3,55 1,16 1,56 2,05 2,72

COP in heating mode* 3,90 3,70 4,17 4,08 4,36 4,27 4,41 4,23

Sound pressure level at 10m (dB(A)) 37 37 39 41 36 37 40 42

Sound pressure level at 1m (dB(A)) - - - - - - - -

Sound power level (dB(A)) 65 65 67 69 64 65 65 65

Dimensions of the unit HxLxP (mm) 803x800x330 1264x800x300 1278x1103x333 1278x1103x333 690x900x320 820x900x320 1360x900x320 1360x900x320

Unit weight (kg) 85 102 139 143 49 51 88 88

Compressor type Scroll DC Twin rotary inverterRefrigerant type R410-A R410-A

Refrigerant quantity (kg) 2,35 2,65 3,70 3,96 3,70 3,70 2,10 2,10

Operating range at outside temp. (C) -15/+40 -15/+35

Operating range collector temp. (C) - -

Operating range brine source water temp. (C) - -

Max. leaving water temperature (C) +55 +55

Reversible yes yes

Electrical connection power supply (V) 230 230 230 ou 400 400 230 230 230 230

SOFT STARTER** INVERTER

HYDRONIC MODULESUPPLEMENTARY ELECTRIC HEATER FOR NEW BUILDINGS OR BOILER REPLACEMENT

Dimensions HxLxP (mm) 640x235x435

Electrical connections power supply (V/Ph/Hz) 230/1/50

Maxi power (kW) 20Plates material Titanium

Inlet T ; Primary outlet (module HP) / secondary (swimming pool) +45C ; +35C / +26C ; +32C

Primary flow / secondary (m3/h) 1,7/2,9

swimming pool PVC./ heat exchanger 32x40 / 26x34

Empty weight (kg) 25

WIMMING POOL HEATING

Reference XP XT 6kW XT 8kW XB20 XB200 XBP Duoline 150 XTS XBS

Number of comfort zones 1 1 1 2 2 2 1 1 2

Type of module reversible reversible reversible reversible reversible reversible reversible reversible or

heating onlyreversible orheating only

Supplementary electric heaters (kW) 4kW 2x3 kW 2x4 kW 3x4 kW 3x4,5 kW 2x4 kW 4 kW 0/2/4 kW 0/4/6/8 kW

Dimensions HxLxP (mm) 400x410x250 800x470x350 800x470x350 1050x660x550 1550x830x650 1050x660x550 1423x570x626 800x600x380 1050x560x522

Weight (kg) 20 30 30 70 115 70 85 40 70

Water leaving T max. setpoint in heating mode (C) 65 65 65 65 65 65 65 55 55/70*

Water leaving T max. setpoint in cooling mode (C) 7 7 7 7 7 7 7 7 7

Electrical connection power supply V 230 230 230 230 or 400 230 or 400 230 230 230 230

Nominal heating conditions: t outside air +7C, t leaving water +35C for air source HPs and 0/-3C collector at LWT 30/35C for ground source HPs* Soft-starter

* for 0kW of supplementary electric heater (Boiler back up)


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GROUND SOURCE HEAT PUMP

RXH-10 PCRXH-15 PCROCAP06 PCROCAP

08 PCROCAP

11 PCROCAP

13 PCROCAP

17 PCRONAP

11 PCRONAP

13 PCRONAP

17 PCRONAP

200,10 14,00 5,90 9,20 12,20 13,70 16,00 9,84 14,11 17,13 20,13

2,70 3,80 1,50 2,30 2,80 3,40 3,50 1,89 2,68 3,28 3,80

3,74 3,68 3,93 3,92 4,36 4,03 4,57 5,10 5,15 5,09 5,24

- - - -

- - 41 42 47 47 48 31 35 36 37

- - 52 52 58 58 59 42 46 47 48

1100x388 1515x1100x388 980x560x575 980x560x575 980x560x575 980x560x575 980x560x575 940x600x570 940x600x570 1 117x900x648 1 117x900x648

147 155 148 152 160 170 175 170 190 200 210

Scroll Scroll ScrollR407-C R410-A R407-C

2,70 2,89 1,10 1,24 1,55 1,55 1,70 1,71 2,25 2,42 2,58

-16/+24 - -

- -8/+12 -

- - -5/+20

+65 +55 +60

yes yes yes

230 230 or 400 230 230 or 400 400 400 400 230 230 or 400 400 400

HIGH TEMP. COLLECTORS GROUND WATER SOURCE

OILER BACK UP FOR EXISTING BUILDINGS

Reference Duoline 150 Duoline 280 Sololine

Tank capacity - litres (l) 150 280 280

Maximum water temperature (C) 60 65 55

Dimensions HxLxP (mm) 1423x626x626 1490x650x650 1725x650x650

Empty weight (kg) 85 85 110

Supplementary electric heaters (kW) 1,50 3 3

Electr ical connections power supply (V/Ph/Hz) 230/1/50 230/1/50 230/1/50

Type of heat exchanger tubular tubular Refrigerant

Integrates a heat pump no no yes

DOMESTIC HOT WATER

R30 XR200-3 XB30 XB200-3

1 1 2 2

ingonly heatingonly reversible reversible

oiler boiler boiler boiler

440x400 1550x890x650 1050x660x570 1500x890x715

40 110 70 110

65 65 65 65

7 7 7 7

or 400 400 230 or 400 230 or 400

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Solo Line and Duo Line ranges are programmable for off peak mode or permanent mode operating, booster* mode or also EJP (Only for

Sololine) . * increase the temperature for anti-legionella cycles (Except for Duoline150)

LE CRDIT DIMPT

SOL

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YOUR INSTALLER

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Since 14 years, Nexa designs, manufactures and distributes heatingsystems through Europe. Nexa is a pioneer in heating control forsystems with under floor heating.

With up to 100 solutions, from 5 to 300kW, Nexa is the specialist ofresidential thermal comfort at low energy cost. Nexa provides you asolution for each project, for new or existing building and apartment

blocks applications. Nexa is a subsidiary of Carrier Group, and profitsfrom technology skills of a world class Group.

Through our training centres, sales and after-sales teams, we provideprofessional installers withservices to bestmeetcustomers requirements.Installers work together with our network of after-sales stations whichhelp them to ensure the permanent maintenance of your installation.

nexa brochure

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