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8/11/2019 Nexa Brochure
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ENTER THE WORLD
OF HEAT PUMPS
by
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.
by
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.
by
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.
by
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
CLIMATIC DATA ANNUAL HEATING COST(Cost in )
RUNNING COST ANALYSIS(% of energy consumption)
City :Paris - FRANCE
Heat load :9,29kW at -6C
Technology :Soft starter
System :TSR04M65-A
Outdoor design temperature :-6C
Outdoor average temperature :7,2C
Terminal unit :Radiator
House floor area :130m
748
1 456
2 378
3 121
HP +supplementaryelectric heater
Mainsgas
Heatingoil
Propanegas
58,5%
41,1%
0,5%
AIR SOURCE SYSTEM
CLIMATIC DATA ANNUAL HEATING COST(Cost in )
RUNNING COST ANALYSIS(% of energy consumption)
City :Lyon - FRANCE
Heat load :9,65 kW at -7C
Technology :High temp.
System :B200M10-AH REF
Outdoor design temperature :-7C
Outdoor average temperature :7,3C
Terminal unit :Radiator
House floor area :130m
822
1 288
1 649
2 762
HP +supplementaryelectric heater
Mainsgas
Heatingoil
Propanegas
Heat pump consumption
Back up
Free energy
Heat pump consumption
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.
by
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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
by
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
AR PANELS
POSSIBLE
CONNECTION WITH
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YOUR INSTALLER
by
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.