AERMEC NRP 0280 User manual

INRP160HzTY. 1312. 5806716_03
MULTIPURPOSE UNITS FOR 2/4 - PIPE SYSTEMS - Technical manual
NRP 0280-0750
REVERSIBLE HEAT PUMPS
• DESIGNED FOR 2 AND 4PIPE SYSTEMS FOR
EXTERNAL INSTALLATION
• OUTDOOR UNIT
• HIGH EFFICIENCIES
EN

AERMEC S.p.A. reserves the right to make any modifications considered necessary to improve its products at any moment and is not obliged to add these modifications to
machines that have already been fabricated, delivered or are under construction.
Dear Customer,
Thank you for choosing an AERMEC product. This product is the result of many years of experience and in-
depth engineering research, and it is built using top quality materials and advanced technologies.
In addition, the EC mark guarantees that our appliances fully comply with the requirements of the European
Machinery Directive in terms of safety. We constantly monitor the quality level of our products, and as a result
they are synonymous with Safety, Quality, and Reliability.
Product data may be subject to modifications deemed necessary for improving the product without the
obligation to give prior notice.
Thank you again.
AERMEC S.p.A

DICHIARAZIONE DI CONFORMITÀ Noi, firmatari della presente, dichiariamo soo la nostra esclusiva
responsabilità che l’insieme in oggeo così definito:
NOME ..............
TIPO ..............
Al quale questa dichiarazione si riferisce è conforme alle seguennorme armonizzate:
CEI EN 60335240 Norma di sicurezza riguardante le pompe di calore eleriche, i condizionatori d’aria e i
deumidificatori
CEI EN 6100061Immunità ed emissione eleromagneca per l’ambiente residenziale
CEI EN 6100063Immunità ed emissione eleromagneca per l’ambiente industriale
CEI EN 6100062
CEI EN 6100064
EN378 Refrigerang system and heat pumps - Safety and environmental requirements
UNI EN 12735 Tubi di rame tondi senza saldatura per condizionamento e refrigerazione
UNI EN 14276 Arezzature a pressione per sistemi di refrigerazione e per pompe di calore
Soddisfacendo così i requisiessenziali delle seguendireve:
- Direva LVD: 2006/95/CE
Direva compabilità eleromagneca 2004/108/CE
Direva macchine 2006/42/ CE
- Direva PED in materia di arezzature a pressione 97/23/CE
Il prodoo, in accordo con la direva 97/23/CE, soddisfa la procedura di Garanzia qualità Totale (modulo H) con cerficato n.06/270-
QT3664 Rev.7 emesso dall’organismo noficato n.1131 CEC via Pisacane 46 Legnano (MI) - Italy
La persona autorizzata a costuire il fascicolo tecnico è: Pierpaolo Cavallo - 37040 Bevilacqua (VR) Italia - Roma, 996
Direore Commerciale
Firma
........................
AERMEC S.p.A.
37040 Bevilacqua (VR) Italy–Via Roma, 996
Tel. [phone]
Telefax 0442 93730–([phone]
www.aermec.com
DECLARATION OF CONFORMITY We, the undersigned, hereby declare under our own responsibility that the assembly in
queson, defined as follows:
NAME
TYPE
MODEL
To which this declaraon refers, complies with the following harmonised standards:
Safety standard regarding electrical heat pumps, air condioners and dehumidifiers.
Immunity and electromagnec emissions for residenal environments.
Immunity and electromagnec emissions for industrial environments.
Refrigerang system and heat pumps - Safety and environmental requirements.
Seamless, round copper tubes for air condioning and refrigeraon.
Pressure equipment for cooling systems and heat pumps.
Thereby, compliant with the essenal requirements of the following direcves:
- LVD Direcve: 2006/95/CE
- Electromagnec Compability Direcve 2004/108/CE
- Machinery Direcve 2006/42/CE
- PED Direcve regarding pressurised devices 97/23/CE
The product, in agreement with Direcve 97/23/CE, sasfies the Total quality Guarantee procedure (form H) with cerficate
no. 06/270-QT3664 Rev. 7 issued by the nofied body n.1131 CEC via Pisacane 46 Legnano (MI) - Italy
The person authorised to constute the technical file is: Pierpaolo Cavallo - 37040 Bevilacqua (VR) Italy – Rome, 996
Markeng Manager
Signature
MODEL
SERIAL NUMBER
DATE
[email protected]
NRP
NRP
MULTI-PURPOSE UNIT

1. General warnings..........................................................................................4
1.1. Preservaon of the documentaon .............................................................4
1.2. Installaon....................................................................................................4
1.3. Warranty.......................................................................................................4
1.4. Warnings regarding safety and installaon standards .................................4
2. Product idenficaon...................................................................................4
3. Presentaon .................................................................................................5
3.1. For 2-pipe systems........................................................................................5
3.2. For 4-pipe systems........................................................................................5
4. Ceck list.........................................................................................................5
4.1. Descripon and choice of the unit ...............................................................6
5. Basic operang layout for 2-pipe system......................................................7
6. Basic operang layout for 4-pipe system......................................................9
7. Descripon of components ........................................................................11
7.1. Structure.....................................................................................................11
7.2. Cooling circuit.............................................................................................11
7.3. Water features............................................................................................11
7.4. Standard hydraulic circuit...........................................................................11
7.5. Safety and control components..................................................................11
7.6. Electric control and power board...............................................................11
8. Accessories .................................................................................................12
8.1. Mechanical accessories ..............................................................................12
8.2. Electric accessories.....................................................................................12
9. Technical data.............................................................................................13
10. Operaonal limits.......................................................................................18
10.1. Cooling mode .............................................................................................18
10.2. Heang mode ............................................................................................18
11. Correcve factors for data different than nominal in cooling mode ..........19
11.1. Cooling capacity and input power..............................................................19
11.2. For ∆t different from the rated value .........................................................19
11.3. Fouling factors ............................................................................................19
11.4. Heang capacity and input power..............................................................20
11.5. For ∆t different from the rated value .........................................................20
11.6. Fouling factors ............................................................................................20
11.7. Correcve coefficients of recovered heang capacity................................21
11.8. For ∆t different from the rated value .........................................................21
11.9. Fouling factors ............................................................................................21
12. Pressure drop .............................................................................................22
13. Useful stac pressures 2|4 pipe system .....................................................24
13.1. Low stac pressure pumps in cooling mode - system side 230/460V ........24
13.2. Low stac pressure pumps in cooling mode - system side 575V................24
13.3. Low stac pressure pumps in cooling mode - recovery mode 230/460V ..25
13.4. Low stac pressure pumps in cooling mode - recovery mode 575V ..........25
13.5. High stac pressure pumps in cooling mode - system side 230/460V .......26
13.6. High stac pressure pumps in cooling mode - system side 575V...............26
13.7. High stac pressure pumps in cooling mode - recovery mode 230/460v ..27
13.8. High stac pressure pumps in cooling mode - recovery mode 575v..........27
14. Expansion vessel calibraon.......................................................................28
14.1. Expansion vessel calibraon ......................................................................28
15. Minimum water content ............................................................................28
16. Ethylene glycol............................................................................................29
17. Propylenic glycol.........................................................................................29
18. Sound data .................................................................................................30
19. Control and safety parameters calibraon .................................................31
20. Part load .....................................................................................................32
INDEX
4INRP160HzTY. 13.12. 5806716_03

Standards and directives to be followed in
the design and manufacture of the unit:
STANDARD
1. UL 1995 Heating and
cooling equipment
2. ANSI/NFPA Standard 70 National
Electrical code (N.E.C.)
3. CSA C.22.1.- C.22.2 Safety Standard
Electrical Installation
SAFETY LEVEL
1. IP24
ACOUSTIC PART
1. ISO DIS 9614/2 sound intensity
method
REFRIGERANT GAS R410A
This unit contains fluorinated greenhou-
se gases covered by the Kyoto Protocol.
Maintenance and disposal operations must
be only carried out by qualified staff, in
compliance with existing laws.
ATTENTION
Tampering, removal, lack of the identification
plate or other does not allow the safe
identification of the product and will make any
installation or maintenance operation to be
performed difficult.
1. GENERAL WARNINGS
The NRP AERMEC units are constructed according
to the recognised technical standards and safety
regulations.
Multipurpose OUTDOOR units for 2 or 4 pipe
systems, especially designed for simultaneous
production of cold and hot water and fully
independent.
Any contractual or extracontractual liability of
the Company is excluded for injury/damage to
persons, animals or objects owing to installation,
regulation and maintenance errors or improper use.
All uses not expressly indicated in this manual are
prohibited.
1.1. PRESERVATION OF THE
DOCUMENTATION
The instructions along with all the related
documentation must be given to the user of the
system, who assumes the responsibility to conserve
the instructions so that they are always at hand in
case of need.
Read this sheet carefully; the execution of all works
must be performed by qualified staff, according
to Standards in force on this subject in different
countries. (Ministerial Decree 329/2004).
1.2. INSTALLATION
The unit must be installed in such a way that
maintenance and/or repairs can be carried out.
1.3. WARRANTY
The appliance warranty does not cover the costs
for ladder trucks, scaffolding, or other elevation
systems that may become necessary for carrying out
servicing under warranty.
Do not modify or tamper with the unit as dangerous
situations can be created and the manufacturer will
not be liable for any damage caused. The validity of
the warranty shall be void in the event of failure to
comply with the above-mentioned indications.
1.4. WARNINGS REGARDING SAFETY AND
INSTALLATION STANDARDS
• The unit must be installed by a qualified
and suitably trained technician, in compli-
ance with the national legislation in force
in the country of destination (Ministerial
Decree 329/2004).
AERMEC will not assume any re-
sponsibility for damage due to fail-
ure to follow these instructions.
• Before beginning any operation, READ
THESE INSTRUCTIONS CAREFULLY AND
CARRY OUT THE SAFETY CHECKS TO
AVOID ALL RISKS. All the staff involved
must have thorough knowledge of
the operations and any dangers that
may arise at the moment in which the
installation operations are carried out.
2. PRODUCT IDENTIFICATION
The units can be identified through:
• PACKING LABEL which shows the
product identification data
• TECHNICAL PLATE
WARNING
Can not be excluded:
1. The only system side COLD (NRP 4 PIPES)
2. The only SYSTEM SIDE (NRP 2 PIPES)
5
INRP160HzTY. 13.12. 5806716_03

3. PRESENTATION
Multipurpose OUTDOOR units for 2 or 4 pipe
systems, especially designed for simultaneous
production of cold and hot water and fully
independent.
AVAILABLE VERSIONS
3.1. FOR 2PIPE SYSTEMS
The multipurpose 2-pipe units have been made
for applications with 2 pipe terminals, e.g. hotels,
where there is a cold/hot water and DHW demand
throughout the year.
The operating modes are:
SUMMER FUNCTIONING
1. Cold water production to system.
2. Production of domestic hot water with use of
total recovery (NO ANTI-LEGIONELLA CYCLE).
WINTER FUNCTIONING
3. Heat pump supplying the system.
4. Service heat pump of DHW.
3.2. FOR 4PIPE SYSTEMS
The multipurpose 4-pipe units have been made for
applications with 4 pipe terminals, e.g. shopping
centres, offices or facilities with large windows
where there can be the simultaneous demand for
hot and cold water with a system which does not
require season changeover and therefore is a valid
alternative to traditional systems based on the
chiller-boiler combination.
The microprocessor control logic ensures perfectly
satisfying heat and cooling loads.
The operating modes are:
PRODUCTION OF COOLED WATER ONLY
The multipurpose unit acts as a classical refrigerator:
cool water to the system and condensation heat
disposal outside through finned coils.
PRODUCTION OF HOT WATER ONLY
The multipurpose unit acts as a heat pump,
exploiting the heat of the outside air, through the
finned coil (evaporator) it raises the temperature of
the water to be sent to the system through a plate
heat exchanger (condenser). The main difference
from traditional cycle reverse heat pumps is that
the heated water is produced in different heat
exchanger from the one used to produce cold water.
This separates the two hot-cold sections required for
4-pipe systems.
COMBINED PRODUCTION
If the utility requires simultaneous hot and
cold water, the unit acts as a water heat pump,
controlling condensation and evaporation on
two distinct plate heat exchangers associated to
circulation of cold and hot water in the system.
It automatically changes from one configuration to
another (managed by on-board microprocessor)
to optimise the spent energy depending on the
demand by the utility.
Maximum reliability
Multi-circuit unit designed to provide the maximum
efficiency both with full load and partial loads,
guaranteeing operating continuity should one of the
circuits stop to facilitate maintenance.
Having several compressors and circuits ensures
control of more steps of power yielded in both
modes.
Built-in hydronic kit
Encloses the main hydraulic components; available
in several configurations with high or low static
pressure single pump or reserve pump (see
configurator).
2-pipe unit 4-pipe unit
System Domestic hot water Cooling side Heat side
STANDARD HYDRAULIC CIRCUIT
Filter As per standard As per standard As per standard As per standard
Flow switch As per standard As per standard As per standard As per standard
Air vent valve As per standard As per standard As per standard As per standard
CONFIGURABLE HYDRAULIC CIRCUIT
VERSIONS WITH SYSTEM STORAGE TANK AND PUMPS (the more complete versions are described)
Expansion vessel
As per standard No As per standard No
System storage tank and pump/s As per standard No As per standard No
Drain tap As per standard No As per standard No
Safety valve as per standard No As per standard No
VERSIONS WITH PUMPS ONLY (the more complete versions are described)
Pump/s
As per standard As per standard As per standard As per standard
Expansion vessel As per standard As per standard As per standard As per standard
Safety valve As per standard As per standard As per standard As per standard
4. CECK LIST
KEY:
• As standard
n.a. Not avaiable
COOLING CIRCUIT 2-pipe unit 4-pipe unit
Thermostatic valve (cooling mode) ••
Thermostatic valve (recovery mode) ••
Cycle reverse valve • n.a.
Recovery enable valve ••
Heat exchanger plate (Evaporator) n.a. •
Heat exchanger plate (Evaporator/Condenser) • n.a.
Heat exchanger plate (DHW/Total Recovery) ••
Air side coil exchanger ••
Compressor ••
Dehydrator filter ••
COOLING CIRCUIT 2-pipe unit 4-pipe unit
High pressure switch (manually reset) ••
High pressure transducer ••
Low pressure transducer ••
Liquid indicator ••
Liquid tank ••
One-way valves ••
Liquid separator ••
Solenoid valves ••
Relief valves ••
6INRP160HzTY. 13.12. 5806716_03

4.1. DESCRIPTION AND CHOICE OF THE UNIT
Field:
1 2 3 Code NRP
4 5 6 7 Size 0280, 0300, 0330, 0350, 0500, 0550, 0600, 0650, 0700, 0750
8 Version
AHigh efficiency (not available for sizes 0280÷0350)
ESilenced high efficiency (data on demand for sizes 0500÷0750)
9 Type of system:
22 pipe system (cooling + DHW heating)
44 pipe system (cooling + heating)
10 Coil
°Aluminium
RCopper
STinned copper
VCoated aluminium (epoxy paint)
11 Fan
IInverter
12 Power supply
6230/3/60 with magnet circuit breakers
7460/3/60 with magnet circuit breakers
8575/3/60 with magnet circuit breakers
13 14 System side hydronc kit
00
Without hydronic kit
01 Tank and single low head pump (not available for sizes 0800÷1800)
02 Tank and single low head pump and reserve pump (not available for sizes 0800÷1800)
03 Tank and single high head pump (not available for sizes 0800÷1800)
04 Tank and single high head pump and reserve pump (not available for sizes 0800÷1800)
P1 Single low head pump
P2 Single low head pump and reserve pump
P3 Single high head pump
P4 Single high head pump and reserve pump
15 16 DHW side idronic kit
1
00 Without hydronic kit
R1 Single low head pump
R2 Single low head pump and reserve pump
R3 Single high head pump
R4 Single high head pump and reserve pump
1
DHW SIDE/SYSTEM SIDE
DHW side, production of domestic hot water, in 2-pipe systems.
System side, production of hot water, in 4-pipe systems.
POSSIBLE CONFIGURATIONS BETWEEN HYDRONIC KITS
Recovery hydronic unit
System hydronic unit
° R1R2R3R4
°•••••
01 • n.a. n.a. n.a. n.a.
02 • n.a. n.a. n.a. n.a.
03 • n.a. n.a. n.a. n.a.
04 • n.a. n.a. n.a. n.a.
05 • n.a. n.a. n.a. n.a.
06 • n.a. n.a. n.a. n.a.
07 • n.a. n.a. n.a. n.a.
08 • n.a. n.a. n.a. n.a.
P1 •••••
P2 •••••
P3 •••••
P4 •••••
KEY:
• Avaiable
n.a. Not avaiable
7
INRP160HzTY. 13.12. 5806716_03

3. BASIC OPERATING LAYOUTS FOR 2 PIPE SYSTEM
3.1. COLD WATER PRODUCTION ONLY TO SYSTEM
3.2. HOT WATER PRODUCTION ONLY TO SYSTEM
HPT HPS
LS
VIC
LPT
IDL CP
CN
CV CV
CV
CV
CV
TEV
F
AL
VIC
TEV
HPT
HPS
LS
VIC
LPT
IDL
CP
CN
CV
CV
CV
CV
CV
TEV
F
AL
VIC
TEV
HPT HPS
LS
VIC
LPT
IDL IDL
CP
CN
CV CV
CV
CV
CV
TEV
F
AL
VIC
TEV
HPT
HPS
LS
VIC
LPT
CN
CV
CV
CV
CV
CV
TEV
F
AL
VIC
TEV
CP
ĞƐĐƌŝƉƟŽn&ƵŶĐƟŽŶŝŶŐ
1System side
HEAT EXCHANGER
(EVAPORATION)
Cold water prŽĚƵĐƟŽŶ
2DHW side
HEAT EXCHANGER EŽƚƌƵŶŶŝŶŐ
3Source side
HEAT EXCHANGER
(CONDENSATION)
Heat exĐŚĂŶŐe with air
ĞƐĐƌŝƉƟŽn&ƵŶĐƟŽŶŝŶŐ
1System side
HEAT EXCHANGER
(CONDENSATION)
Hot water prŽĚƵĐƟŽŶ
2DHW side
HEAT EXCHANGER EŽƚƌƵŶŶŝŶŐ
3Source side
HEAT EXCHANGER
(EVAPORATION)
Heat exĐŚĂŶŐe with air
H2O SYSTEM
RETURN
H2O SYSTEM
RETURN
H2O SYSTEM FLOW
H2O SYSTEM FLOW
1
2
33
1
2
33
Key
1System side heat exĐŚĂŶŐer
2DHW side heat exĐŚĂŶŐer
3Source side heat exĐŚĂŶŐer
AL Liquid storaŐe tĂŶŬ
CV KŶĞͲway valve
FDehydratŽƌĮůter
IDL >ŝƋƵŝĚŝŶĚŝcator
HPT ,ŝŐŚƉressure trĂŶƐĚƵĐĞƌ
HPS ,ŝŐŚƉressure pressure switch
LPT Low pressure trĂŶƐĚƵĐĞƌ
LS Liquid separator
TEV ThermostaƟĐvalves
VIC Cycle reverƐŝŶŐvalve
5. BASIC OPERATING LAYOUT FOR 2PIPE SYSTEM
8INRP160HzTY. 13.12. 5806716_03

HPT HPS
LS
VIC
LPT
IDL IDL
CP
CN
CV CV
CV
CV
CV
TEV
F
AL
VIC
TEV
HPT
HPS
LS
VIC
LPT
CN
CV
CV
CV
CV
CV
TEV
F
AL
VIC
TEV
CP
HPT HPS
LS
VIC
LPT
IDL CP
CN
CV CV
CV
CV
CV
TEV
F
AL
VIC
TEV
HPT
HPS
LS
VIC
LPT
CN
CV
CV
CV
CV
CV
TEV
F
AL
VIC
TEV
LDIPC
3.3. 2 CIRCUITS TO PRODUCE HOT WATER ONLY TO DHW
3.4. 2 CIRCUITS TO PRODUCE COLD WATER TO SYSTEM AND HOT WATER TO DHW
ĞƐĐƌŝƉƟŽn&ƵŶĐƟŽŶŝŶŐ
1System side
HEAT EXCHANGER Not running
2DHW side
HEAT EXCHANGER
(CONDENSATION)
DHW prŽĚƵĐƟŽŶ
3Source side
HEAT EXCHANGER
(EVAPORATION)
Heat exchange with air
ĞƐĐƌŝƉƟŽn&ƵŶĐƟŽŶŝŶŐ
1System side
HEAT EXCHANGER
(EVAPORATION)
Cold water prŽĚƵĐƟŽŶ
2DHW side
HEAT EXCHANGER
(CONDENSATION)
DHW prŽĚƵĐƟŽŶ
3Source side
HEAT EXCHANGER Not running
H2O DHW
RETURN
H2O DHW
FLOW
H2O DHW
RETURN
H2O SYSTEM
RETURN
H2O DHW
FLOW
H2O SYSTEM
FLOW
1
2
3 3
1
2
3 3
Key
1System side heat exchanger
2DHW side heat exchanger
3Source side heat exchanger
AL Liquid storage tank
CV One-way valve
FDehydratŽƌĮůter
IDL Liquid indicator
HPT High pressure transducer
HPS High pressure pressure switch
LPT Low pressure transducer
LS Liquid separator
TEV ThermostaƟĐvalves
VIC Cycle reversing valve
9
INRP160HzTY. 13.12. 5806716_03

HPT HPS
LS
VIC
LPT
IDL CP
CN
CV CV
CV
CV
CV
TEV
F
AL
VIC
TEV
HPT
HPS
LS
VIC
LPT
IDL CP
CN
CV
CV
CV
CV
CV
TEV
F
AL
VIC
TEV
HPT HPS
LS
LPT
IDL CP
CN
CV CV
CV
CV
CV
TEV
F
AL
VIC
TEV
HPT
HPS
LS
VIC
LPT
IDL CP
CN
CV
CV
CV
CV
CV
TEV
F
AL
VIC
TEV
3.5. CIRCUIT FOR PRODUCING HOT WATER TO SYSTEM | CIRCUIT FOR PRODUCING HOT WATER TO DHW
4. BASIC OPERATING LAYOUTS FOR 4 PIPE SYSTEM
4.1. COLD WATER PRODUCTION ONLY TO SYSTEM
4
ĞƐĐƌŝƉƟŽn&ƵŶĐƟŽŶŝŶŐ
1System side
HEAT EXCHANGER
(CONDENSATION)
Hot water prŽĚƵĐƟŽŶ
3Source side
HEAT EXCHANGER
(EVAPORATION)
Heat exĐŚĂŶge with air
H2O SYSTEM
RETURN
H2O SYSTEM
RETURN
H2O SYSTEM FLOW
H2O SYSTEM FLOW
1
1
3
3 3
3
ĞƐĐƌŝƉƟŽn&ƵŶĐƟŽŶŝŶŐ
2DHW side
HEAT EXCHANGER
(CONDENSATION)
DHW prŽĚƵĐƟŽŶ
3Source side
HEAT EXCHANGER
(EVAPORATION)
Heat exĐŚĂŶge with air
H2O DHW
RETURN
H2O DHW
FLOW
2
2
ĞƐĐƌŝƉƟŽn&ƵŶĐƟŽŶŝŶŐ
1System side
HEAT EXCHANGER
(EVAPORATION)
Cold water prŽĚƵĐƟŽŶ
2DHW side
HEAT EXCHANGER EŽƚƌƵŶŶŝŶŐ
3Source side
HEAT EXCHANGER
(CONDENSATION)
Heat exĐŚĂŶge with air
Key
1System side heat exĐŚĂŶger
2DHW side heat exĐŚĂŶger
3Source side heat exĐŚĂŶger
AL Liquid storage tĂŶŬ
CV KŶĞͲway valve
FDehydratŽƌĮůter
IDL >ŝƋƵŝĚŝŶĚŝcator
HPT High pressure trĂŶƐĚƵĐĞƌ
HPS High pressure pressure switch
LPT Low pressure trĂŶƐĚƵĐĞƌ
LS Liquid separator
TEV ThermostaƟĐvalves
VIC Cycle reverƐŝŶŐvalve
6. BASIC OPERATING LAYOUT FOR 4PIPE SYSTEM
10 INRP160HzTY. 13.12. 5806716_03

HPT HPS
LS
LPT
IDL CP
CN
CV CV
CV
CV
CV
TEV
F
AL
VIC
TEV
HPT
HPS
LS
VIC
LPT
IDL
CP
CN
CV
CV
CV
CV
CV
TEV
F
AL
VIC
TEV
HPT HPS
LS
LPT
IDL CP
CN
CV CV
CV
CV
CV
TEV
F
AL
VIC
TEV
HPT
HPS
LS
VIC
LPT
IDL
CP
CN
CV
CV
CV
CV
CV
TEV
F
AL
VIC
TEV
4.2. HOT WATER PRODUCTION ONLY TO SYSTEM
4.3. SIMULTANEOUS HOT AND COLD WATER PRODUCTION TO SYSTEM
ĞƐĐƌŝƉƟŽn&ƵŶĐƟŽŶŝŶŐ
1Cooling side
EXCHANGER
(EVAPORATION)
Cold water prŽĚƵĐƟŽŶ
2HeaƟŶŐƐŝĚĞ
EXCHANGER
(CONDENSATION)
Hot water prŽĚƵĐƟŽŶ
3Source side
HEAT EXCHANGER Not running
H2O SYSTEM
RETURN
H2O SYSTEM
RETURN
H2O SYSTEM
FLOW
H2O SYSTEM
FLOW
1
1
3
3
3
3
2
2
Key
1System side heat exchanger
2DHW side heat exchanger
3Source side heat exchanger
AL Liquid storage tank
CV One-way valve
FDehydratŽƌĮůter
IDL Liquid indicator
HPT High pressure transducer
HPS High pressure pressure switch
LPT Low pressure transducer
LS Liquid separator
TEV ThermostaƟĐvalves
VIC Cycle reversing valve
H2O DHW
RETURN
H2O DHW
FLOW
ĞƐĐƌŝƉƟŽn&ƵŶĐƟŽŶŝŶŐ
1Cooling side
EXCHANGER Not running
2HeaƟŶŐƐŝĚĞ
EXCHANGER
(CONDENSATION)
Hot water prŽĚƵĐƟŽŶ
3Source side
HEAT EXCHANGER
(EVAPORATION)
Heat exchange with air
11
INRP160HzTY. 13.12. 5806716_03

7. DESCRIPTION
OF COMPONENTS
7.1. STRUCTURE
BASEAND SUPPORT STRUCTURE
Made up from hot galvanised sheet steel elements
with suitable thickness. All parts painted with
polyester powder paints (RAL 9002), resistant to
atmospheric agents.
Realised in a way to allow total accessibility to
the components internal components. All panels
are covered with sound-absorbent material with
suitable thickness.
7.2. COOLING CIRCUIT
COMPRESSOR
Hermetic scroll rotary compressors. All compressors
come with casing resistance, electronic thermal
protection with centralised manual resetting and
two-pole electric motor.
COOLING/HEATING EXCHANGER SYSTEM SIDE
Braze welded AISI 316 steel plate heat exchanger,
insulated externally with closed cell neoprene anti-
condensation material. When the unit is not running,
it is protected against formation of ice inside by an
electric resistance.
7.3. WATER FEATURES
PH 6-8
Electric conductivity Less than 200 mV/cm (25°C)
Chloride ions Less than 50 ppm
Sulphuric acid ions Less than 50 ppm
Total iron Less than 0.3 ppm
Alkalinity M Less than 50 ppm
Total hardness Less than 50 ppm
Sulphur ions None
Ammonia ions None
Silicone ions Less than 30 ppm
DHW SIDE HEAT EXCHANGER 2 pipes)
HEATING SIDE SYSTEM 4 pipes)
Braze welded AISI 316 steel plate heat exchanger,
insulated externally with closed cell neoprene anti-
condensation material. When the unit is not running,
it is protected against formation of ice inside by an
electric resistance.
AIR SIDE COIL EXCHANGER
Finned pack heat exchanger made with copper pipes
and aluminium fins adequately spaced to ensure
better heat exchange performance.
CYCLE REVERSING VALVE (2 PIPE)
4-way cycle reversing valve. Inverts the flow of
refrigerant gas.
RECOVERY ENABLE VALVE
4-way valve enables the recovery heat exchanger.
LIQUID STORAGE TANK
(always passed by)
Compensates the difference in volume between
finned coil and plate exchanger, retaining excess
liquid.
LIQUID SEPARATOR
Located on the suction point of the compressor, to
protect against any flowback of liquid refrigerant,
flooded start-ups, operation in the presence of
liquid.
DEHYDRATOR FILTER
Hermetic-mechanical with cartridges made of
ceramic and hygroscopic material, able to withhold
impurities and any traces of humidity present in the
cooling circuit.
ONE WAY VALVES
Allows one-way flow of the refrigerant.
THERMOSTATIC VALVES
Two valves installed:
(cooling mode and recovery mode)
Mechanical valves, with external equaliser
positioned at evaporator outlet, modulates the flow
of gas to the evaporator, depending on the heat
load, in order to ensure a correct heating level of
the intake gas.
SOLENOID VALVES
The valve closes when the compressor switches
off, blocking the flow of refrigerant gas to the
evaporator, recovery and the coil.
INDICATOR FOR LIQUID
Used to check presence of humidity in cooling
circuit.
7.4. STANDARD HYDRAULIC CIRCUIT
WATER FILTERS
Equipped with steel filtering mesh, prevents the
heat exchangers both of the system side and the
DHW/heating system side from clogging.
FLOW SWITCHES
They have the task of controlling that there is water
circulation inside the heat exchangers; if this is not
the case, they block the unit.
AIR VENT VALVE
Mounted on the top of the hydraulic system; they
discharge possible air pockets.
7.4.1. COMPONENTS OF HYDRAULIC CIRCUIT
IN CONFIGURABLE VERSIONS
PUMPS
High or low static pressure.
EXPANSION VESSEL
With nitrogen pre-load membrane.
SAFETY VALVE
Equipped with a piped discharger, intervenes by
discharging the over pressure in case of anomalous
pressures.
SYSTEM STORAGE TANK
Made of steel to reduce heat loss and to eliminate
the formation of condensation, insulated by thick
polyurethane.
DRAIN TAP
7.5. SAFETY AND CONTROL
COMPONENTS
MANUALLY RESET HIGH PRESSURE SWITCH
With fixed calibration, placed on high pressure side
of cooling circuit, inhibits functioning of compressor
if abnormal work pressure occurs.
LOW PRESSURE TRANSDUCER
Placed on the low pressure side of the cooling
circuit, it signals the work pressure to the control
board generating a pre-warning in the case of
anomalous pressures.
HIGH PRESSURE TRANSDUCER
Placed on the high pressure side of the cooling
circuit, it signals the work pressure to the control
board generating a pre-warning in the case of
anomalous pressures.
RELIEF VALVES
They intervene by discharging the overpressure in
the case of anomalous pressures.
- Calibrated at 45 bar on HP branch.
- Calibrated at 30 bar on LP branch.
CONDENSATION PRESSURE CONTROLLER
This device allows correct functioning with external
temperatures lower than 10°C and as low as – 10°C.
It consists of an adjustment circuit board that
varies the number of fan revs according to the
condensation pressure read by the high pressure
transducer, in order to keep it sufficiently high for
correct unit functioning.
It also allows correct functioning in heating mode
with external temperatures exceeding 30°C and up
to 42°C.
7.6. ELECTRIC CONTROL
AND POWER BOARD
Electric board in compliance with standards UL1995,
EN 60204-1/IEC 204-1, complete with:
- transformer for the control circuit,
- door lock main isolating switch,
- fuses and contactors for compressors and fans,
- terminals for REMOTE PANEL,
- spring type control circuit terminal board,
- outdoor electric board with double door and
gaskets,
- electronic controller,
- evaporator pump and recovery pump control
consent relay (only for versions without pump
units),
- all numbered cables.
DOORLOCK ISOLATING SWITCH
The electric control board can be accessed by
removing the voltage. Act on the opening lever of
the control board itself. This lever can be locked
using one or more padlocks during maintenance
interventions to prevent the machine being
powered up accidentally.
CONTROL BOARD
1. Allows the complete control of the appliance.
For a more in-depth description please refer
to the user manual.valve and ON/OFF pumps.
2. Production of DHW through a 3-way diverter
valve or the total recovery version.
Additional functions:
• Control of an external integration
resource dedicated to DHW.
ATTENTION
For questions of space, in configurations
with storage tank and built-in pump/s
on the system side, no pumps can be
available on the recovery side!
12 INRP160HzTY. 13.12. 5806716_03

NRP VERSION 0280 0300 0330 0350 0500 0550 0600 0650 0700 0750
MECHANICAL ACCESSORIES
VT
00
P1-P2-P3-P4
R1-R2-R3-R4
17 17 17 17 13 13 13 13 22 23
01-02-03-04
13 13 13 13 10 10 10 10 22 23
GP A ----GP2x2 GP2x2 GP2x2 GP2x2 GP2x3 GP10x3
E GP3 GP4 GP4 GP4 GP2x2 GP2x2 GP2x2 GP2x2 GP2x3 GP10x3
TRX1 ALL ••••••••••
ELECTRIC ACCESSORIES
DRE ALL 281 301 331 351 501 551 601 651 701 751
RIF * ALL ••••••••••
AER485P1 ALL ••••••••••
PGD1 ALL ••••••••••
AERWEB300-6 ALL ••••••••••
AERWEB300-18 ALL ••••••••••
AERWEB300-6G ALL ••••••••••
AERWEB300-18G ALL ••••••••••
* Please contact us.
8. ACCESSORIES
8.1. MECHANICAL ACCESSORIES
VT ANTI-VIBRATION MOUNTS
Group of anti-vibration mounts.
GP PROTECTION GRIDS
Protect the external coil from blows and
prevent access to the underlying area where the
compressors and the chiller circuit are housed. Every
kit includes two grids.
TRX1
The storage tanks with holes and integrative
resistances are delivered from the factory with
plastic protective caps.
Before the system is loaded, the plastic caps must be
replaced with the specific TRX1 if installation of one
or all the resistances is not foreseen.
8.2. ELECTRIC ACCESSORIES
AER485P1
RS-485 interface for supervising systems with
MODBUS protocol.
AERWEB300
Accessory AERWEB allows remote control of a chiller
through a common PC and an ethernet connection
over a common browser; 4 versions available:
AERWEB300-6: Web server to monitor and remote
control max. 6 units in RS485 network;
AERWEB300-18: Web server to monitor and remote
control max. 18 units in RS485 network;
AERWEB300-6G: Web server to monitor and
remote control max. 6 units in RS485 network with
integrated GPRS modem;
AERWEB300-18G: Web server to monitor and
remote control max. 18 units in RS485 network with
integrated GPRS modem;
PGD1
Graphical display, which allows complete
management of the unit like the one on board the
machine. Can be controlled up to 50 m away with
a telephone cable, 200 m with a shielded AWG 24
cable.
RIF
Current rephaser. Connected in parallel to the
motor, it allows a reducon of the input current
(approx. 10%). It can only be installed in the factory
and so must be requested on ordering.
13
INRP160HzTY. 13.12. 5806716_03

9. TECHNICAL DATA
Model 0280 0300 0330 0350 0500 0550 0600 0650 0700 0750
1COOLING MODE
Cooling capacity Aton - - - - 22,73 26,83 32,65 37,03 41,16 44,93
Eton 12,32 14,13 16,21 20,29 data on demand
Input power AkW - - - - 28,40 33,67 40,62 46,30 51,78 56,01
EkW 15,25 17,65 20,05 25,42 data on demand
Water flow rate Agpm - - - - 54,43 64,26 78,19 88,69 98,58 107,61
Egpm 29,51 33,85 33,83 48,60 data on demand
Total pressure drops
SYSTEM SIDE
APSI - - - - 2,03 2,47 4,64 9,60 6,36 4,79
EPSI 1,74 2,18 2,18 2,47 data on demand
Available static pressure
Low static pressure pump
A PSI - - - - 18,59 16,69 23,40 21,34 18,70 20,45
E PSI 21,99 21,19 20,89 19,52 data on demand
Available static pressure
High static pressure pump
A PSI - - - - 29,01 27,30 35,29 33,21 30,51 32,18
E PSI 31,53 30,94 30,84 29,79 data on demand
2HEATING MODE
Heating capacity ABTU/h - - - - 328258 381646 479474 536314 590505 660103
EBTU/h 184010 213353 242695 304776 data on demand
Input power AkW - - - - 31,01 36,53 46,58 51,18 56,58 63,51
EkW 17,24 19,94 22,65 27,32 data on demand
Water flow rate Agpm - - - - 73 85 106 119 131 147
Egpm 41 47 54 68 data on demand
Pressure drops
SYSTEM SIDE VERS. 2 PIPES
APSI
----3,34,06,97,99,77,2
EPSI 2,8 3,4 3,4 3,9 data on demand
Pressure drops
DHW SIDE/SYSTEM SIDE 
APSI
----5,18,110,0 10,0 9,0 6,9
EPSI 3,2 5,1 5,2 4,2 data on demand
ENERGY INDEX
EER ABTU/W - - - - 9,61 9,57 9,65 9,61 9,55 9,64
EBTU/W 9,71 9,62 9,71 9,59 data on demand
COP AW/W - - - - 3,10 3,06 3,02 3,07 3,06 3,05
EW/W 3,13 3,14 3,14 3,27 data on demand
1COOLING CONDITIONS: AHRI STANDARD
System water outlet 6,7°C - 44,06°F
System water flow 0,043 l/s per kW
External air temperature 35°C - 95°F
2HEATING CONDITIONS:
DHW / System water inlet 40°C - 104°F
DHW / System water outlet 45°C - 113°F
External air temperature d.b./w.b. 7/6°C - 44,6°F/42,8
1DHW SIDE/SYSTEM SIDE
DHW side, production of domestic hot water, in 2-pipe systems.
System side, production of hot water, in 4-pipe systems.
14 INRP160HzTY. 13.12. 5806716_03

Model 0280 0300 0330 0350 0500 0550 0600 0650 0700 0750
3TOTAL RECOVERY MODE
Cooling capacity Aton ----20,64 24,57 29,92 34,01 37,89 41,60
Eton 11,17 13,19 15,12 19,38 data on demand
Recovered capacity Aton ----27,38 33,41 40,94 46,36 51,66 56,76
Eton 15,14 17,89 20,55 26,05 data on demand
Total input power AkW ----24,94 32,75 40,80 45,70 51,00 56,10
EkW 14,69 17,39 20,10 24,70 data on demand
TER - Total Efficiency Ratio -W/W 6,30 6,28 6,24 6,47 6,77 6,23 6,11 6,18 6,18 6,17
Water flow rate Evaporator Agpm ----49,48 58,89 71,71 81,53 90,82 99,72
E gpm 26,77 31,62 36,25 46,46 data on demand
Evaporator pressure drops
SYSTEM SIDE
APSI ----1,92 2,46 3,90 4,62 5,73 4,14
E PSI 1,44 1,95 1,84 2,27 data on demand
Recovery water flow rate Agpm ----72,92 88,99 109,03 123,46 137,60 151,16
E gpm 40,32 47,64 54,74 69,39 data on demand
Recovery pressure drops
DHW SIDE/SYSTEM SIDE 
APSI ----5,08 9,00 10,48 10,77 9,88 7,49
E PSI 3,04 5,11 5,33 4,38 data on demand
TOTAL RECOVERY MODE - SYSTEM SIDE PUMP
Available static pressure
Low static pressure pump (230-460V)
APSI ----19,6 18,0 24,8 23,0 20,8 22,2
E PSI 22,5 21,6 21,4 20,0 data on demand
Available static pressure
Low static pressure pump (575V)
APSI ----21,6 19,0 24,8 23,0 20,8 22,2
E PSI 26,6 25,4 24,7 22,3 data on demand
Available static pressure
High static pressure pump (230-460V)
APSI ----30,0 28,4 36,7 34,9 32,7 34,0
E PSI 31,9 31,3 31,2 30,2 data on demand
Available static pressure
High static pressure pump (575V)
APSI ----28,1 27,0 36,7 34,9 32,7 34,0
E PSI 32,6 31,5 31,0 28,7 data on demand
TOTAL RECOVERY MODE - DHW / SYSTEM SIDE PUMP
Available static pressure
Low static pressure pump (230-460V)
APSI ----23,6 18,6 14,7 23,7 21,9 22,3
E PSI 20,0 17,3 16,3 15,2 data on demand
Available static pressure
Low static pressure pump (575V)
APSI ----23,6 18,6 14,7 23,7 21,9 22,3
E PSI 23,0 19,5 17,7 15,1 data on demand
Available static pressure
High static pressure pump (230-460V)
APSI ----35,5 30,5 35,5 32,9 31,2 31,8
E PSI 30,0 27,5 26,7 25,9 data on demand
Available static pressure
High static pressure pump (575V)
APSI ----35,5 30,5 35,5 32,9 31,2 31,8
E PSI 29,3 25,9 24,1 21,0 data on demand
3TOTAL RECOVERY CONDITIONS:
System heat exchanger
Water outlet 6,7°C / 44,06°F
Water flow 0,043 l/s per kW
DHW / System heat exchanger
Water inlet 40°C / 104°F
Water outlet 45°C / 113°F
1DHW SIDE/SYSTEM SIDE
DHW side, production of domestic hot water, in 2-pipe systems.
System side, production of hot water, in 4-pipe systems.
15
INRP160HzTY. 13.12. 5806716_03

Model 0280 0300 0330 0350 0500 0550 0600 0650 0700 0750
ELECTRICAL DATA: 230V360HZ POWER SUPPLY
Input current (cooling mode) A 61,74 68,90 78,38 98,71 101,57 119,57 150,59 168,49 186,13 209,85
Input current (total recovery mode) A 48,11 64,33 71,34 86,50 91,55 108,74 130,97 160,00 177,60 192,72
Input current (heating mode) A 65,75 74,14 88,98 103,92 106,48 122,84 166,68 181,97 199,30 222,06
NO PUMP VERSION
LRA A 239,31 287,31 293,74 374,74 376,43 389,29 372,93 453,93 493,93 546,43
MCA A 86,71 94,74 101,17 146,17 147,86 160,71 180,36 225,36 265,36 284,11
MOP A 117,42 131,89 138,31 203,31 205,00 217,86 217,50 282,50 322,50 346,25
Recommended fuse A 110,00 125,00 125,00 200,00 200,00 200,00 200,00 250,00 300,00 300,00
SYSTEM + DHW/SYSTEM LOW HEAD PUMPS
LRA A 254,33 302,33 308,76 389,76 391,74 404,60 388,53 471,73 511,73 564,23
MCA A 101,73 109,76 116,19 161,19 163,17 176,02 195,96 243,16 283,16 301,91
MOP A 132,44 146,91 153,33 218,33 220,31 233,17 233,10 300,30 340,30 364,05
Recommended fuse A 125,00 125,00 150,00 200,00 200,00 225,00 225,00 300,00 300,00 350,00
SYSTEM + DHW/SYSTEM HIGH HEAD PUMPS
LRA A 254,91 302,91 309,34 390,34 394,23 407,09 396,13 477,13 517,13 569,63
MCA A 102,31 110,34 116,77 161,77 165,66 178,51 203,56 248,56 288,56 307,31
MOP A 133,02 147,49 153,91 218,91 222,80 235,66 240,70 305,70 345,70 369,45
Recommended fuse A 125,00 125,00 150,00 200,00 200,00 225,00 225,00 300,00 300,00 350,00
ELECTRICAL DATA: 460V360HZ POWER SUPPLY
Input current (cooling mode) A 39,56 43,12 46,68 54,30 49,07 58,02 69,66 77,76 85,74 96,98
Input current (total recovery mode) A 23,94 32,01 32,28 39,14 43,61 52,15 65,16 72,40 80,36 90,84
Input current (heating mode) A 41,56 45,73 49,90 56,66 51,37 59,51 76,94 83,86 91,70 106,14
NO PUMP VERSION
LRA A 131,89 156,89 162,60 192,60 188,57 200,00 198,90 228,90 238,90 276,09
MCA A 49,74 56,89 62,60 73,85 69,82 81,25 98,90 110,15 120,15 133,69
MOP A 64,03 76,89 82,60 98,85 94,82 106,25 118,90 135,15 145,15 162,98
Recommended fuse A 60,00 75,00 80,00 90,00 90,00 100,00 110,00 125,00 125,00 150,00
SYSTEM + DHW/SYSTEM LOW HEAD PUMPS
LRA A 140,47 165,47 171,18 201,18 196,76 208,19 206,70 237,80 247,80 284,99
MCA A 58,32 65,47 71,18 82,43 78,01 89,44 106,70 119,05 129,05 142,59
MOP A 72,61 85,47 91,18 107,43 103,01 114,44 126,70 144,05 154,05 171,88
Recommended fuse A 70,00 80,00 90,00 100,00 100,00 110,00 125,00 125,00 150,00 150,00
SYSTEM + DHW/SYSTEM HIGH HEAD PUMPS
LRA A 140,89 165,89 171,60 201,60 198,07 209,50 210,50 240,50 250,50 287,69
MCA A 58,74 65,89 71,60 82,85 79,32 90,75 110,50 121,75 131,75 145,29
MOP A 73,03 85,89 91,60 107,85 104,32 115,75 130,50 146,75 156,75 174,58
Recommended fuse A 70,00 80,00 90,00 100,00 100,00 110,00 125,00 125,00 150,00 150,00
ELECTRICAL DATA: 575V360HZ POWER SUPPLY
Input current (cooling mode) A 34,50 37,24 39,99 45,86 38,00 44,91 53,99 60,23 66,37 75,14
Input current (total recovery mode) A 18,42 24,64 24,86 30,14 33,56 40,16 50,17 55,75 61,88 69,95
Input current (heating mode) A 36,03 39,25 42,47 47,68 39,77 46,06 59,59 64,92 70,96 82,20
NO PUMP VERSION
LRA A 102,75 104,75 108,33 145,18 138,37 145,51 133,92 170,77 186,49 216,89
MCA A 38,15 42,61 46,18 63,86 57,05 64,19 71,77 89,45 105,17 117,93
MOP A 48,86 56,90 60,47 86,00 79,19 86,33 86,06 111,60 127,31 144,36
Recommended fuse A 45,00 50,00 60,00 80,00 75,00 80,00 80,00 110,00 125,00 125,00
SYSTEM + DHW/SYSTEM LOW HEAD PUMPS
LRA A 105,95 107,95 111,53 148,38 143,09 150,23 140,16 177,89 193,61 224,01
MCA A 41,35 45,81 49,38 67,06 61,77 68,91 78,01 96,57 112,29 125,05
MOP A 52,06 60,10 63,67 89,20 83,91 91,05 92,30 118,72 134,43 151,48
Recommended fuse A 50,00 60,00 60,00 80,00 80,00 90,00 90,00 110,00 125,00 150,00
SYSTEM + DHW/SYSTEM HIGH HEAD PUMPS
LRA A 107,05 109,05 112,63 149,48 145,49 152,63 143,20 180,05 195,77 226,17
MCA A 42,45 46,91 50,48 68,16 64,17 71,31 81,05 98,73 114,45 127,21
MOP A 53,16 61,20 64,77 90,30 86,31 93,45 95,34 120,88 136,59 153,64
Recommended fuse A 50,00 60,00 60,00 90,00 80,00 90,00 90,00 110,00 125,00 150,00
16 INRP160HzTY. 13.12. 5806716_03

Model 0280 0300 0330 0350 0500 0550 0600 0650 0700 0750
CHARGE
Refrigerant R410A (circuit C1) - lb 21,4 26,5 26,5 30,9 30,0 30,9 57,3 57,3 57,3 97,0
Refrigerant R410A (circuit C2) - lb 21,4 26,5 26,5 30,9 27,3 27,3 57,3 57,3 57,3 97,0
Oil (circuit C1) - dm³ 1,8 3,4 3,4 3,4 3,6 6,8 6,8 6,8 6,8 6,8
Oil (circuit C2) - dm³ 1,8 1,8 3,4 3,4 3,4 3,4 6,8 6,8 6,8 6,8
COMPRESSORS
Quantity / Circuits - n°/n° 2 / 2 2 / 2 2 / 2 2 / 2 3 / 2 3 / 2 4 / 2 4 / 2 4 / 2 4 / 2
Capacity control -
EC INVERTER FANS
Quantity -
n° 888822333 4
Air flow - m³/h 44000 44000 44000 41000 45000 45000 68000 68000 68000 92000
Input power (230V) - kW 2,76 2,76 2,76 2,76 4,80 4,80 7,20 7,20 7,20 9,60
Input power (460/575V) - kW 2,76 2,76 2,76 2,76 5,12 5,12 7,68 7,68 7,68 10,24
Input current (230V) - A 17,60 17,60 17,60 17,60 15,00 15,00 22,50 22,50 22,50 30,00
Input current (460V) - A 17,60 17,60 17,60 17,60 7,80 7,80 11,70 11,70 11,70 15,60
Input current (575V) - A 17,60 17,60 17,60 17,60 6,24 6,24 9,36 9,36 9,36 12,48
SYSTEM SIDE HEAT EXCHANGER
Quantity - n° 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00
Water content
- dm³ 6,50 6,50 8,40 10,80 12,70 15,60 15,60 18,00 18,00 16,60
Water connections
- inch 2"½ 2"½ 2"½ 2"½ 2"½ 2"½ 2"½ 2"½ 2"½ 3"
SYSTEM SIDE 2 AND 4 PIPESHYDRONIC KIT
STORAGE TANK
Storage tank capacity - gal 79,3 79,3 79,3 79,3 132,1 132,1 132,1 132,1 132,1 184,9
EXPANSION VESSEL
Quantity expansion vessel - n° 1111111112
Content expansion vessel - gal 6,3 6,3 6,3 6,3 6,3 6,3 6,3 6,3 6,3 6,3
Expansion vessel calibration - PSI 21,7 21,7 21,7 21,7 21,7 21,7 21,7 21,7 21,7 21,7
LOW STATIC HEAD PUMP
Input power (230-460V)
- kW 1,50 1,50 1,50 1,50 1,50 1,50 2,20 2,20 2,20 2,20
Input power (575V)
- kW 1,10 1,10 1,10 1,10 1,10 1,10 2,20 2,20 2,20 2,20
Input current (230V)
- A 7,50 7,50 7,50 7,50 7,50 7,50 7,80 7,80 7,80 7,80
Input current (460V)
- A 4,30 4,30 4,30 4,30 4,30 4,30 3,90 3,90 3,90 3,90
Input current (575V)
- A 1,60 1,60 1,60 1,60 1,60 1,60 3,10 3,10 3,10 3,10
HIGH STATIC HEAD PUMP
Input power (230-460V)
- kW 2,20 2,20 2,20 2,20 2,20 2,20 3,00 3,00 3,00 3,00
Input power (575V)
- kW 1,50 1,50 1,50 1,50 2,20 2,20 3,00 3,00 3,00 3,00
Input current (230V)
- A 7,80 7,80 7,80 7,80 7,80 7,80 10,00 10,00 10,00 10,00
Input current (460V)
- A 4,50 4,50 4,50 4,50 4,50 4,50 5,00 5,00 5,00 5,00
Input current (575V)
- A 2,20 2,20 2,20 2,20 3,10 3,10 4,00 4,00 4,00 4,00
SAFETY VALVE
Safety valve
- n° 1111111111
Safety valve
- PSI 87,0 87,0 87,0 87,0 87,0 87,0 87,0 87,0 87,0 87,0
17
INRP160HzTY. 13.12. 5806716_03

Model 0280 0300 0330 0350 0500 0550 0600 0650 0700 0750
DHW / SYSTEM SIDE HEAT EXCHANGER
Quantity -
n° 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00
Total water content
- dm³ 5,00 5,00 5,00 8,60 8,60 8,60 8,60 11,00 19,00 19,00
Water connections
- inch 2" ½ 2" ½ 2" ½ 2" ½ 2" ½ 2" ½ 2" ½ 2" ½ 2" ½3"
DHW SIDE 2 PIPES/ SYSTEM SIDE 4 PIPESHYDRONIC KIT
EXPANSION VESSEL
Expansion vessel
- n° 1 / 24 1 / 24 1 / 24 1 / 24 1 / 24 1 / 24 1 / 24 1 / 24 1 / 24 2 / 24
Expansion vessel
- gal 6,3 6,3 6,3 6,3 6,3 6,3 6,3 6,3 6,3 6,3
Expansion vessel calibration
- PSI 21,7 21,7 21,7 21,7 21,7 21,7 21,7 21,7 21,7 21,7
LOW STATIC HEAD PUMP
Input power (230-460V)
- kW 1,50 1,50 1,50 1,50 2,20 2,20 2,20 3,00 3,00 3,00
Input power (575V) - kW 1,10 1,10 1,10 1,10 2,20 2,20 2,20 3,00 3,00 3,00
Input current (230V) - A 7,50 7,50 7,50 7,50 7,80 7,80 7,80 10,00 10,00 10,00
Input current (460V) - A 4,30 4,30 4,30 4,30 3,90 3,90 3,90 5,00 5,00 5,00
Input current (575V) - A 1,60 1,60 1,60 1,60 3,10 3,10 3,10 4,00 4,00 4,00
HIGH STATIC HEAD PUMP
Input power (230-460V)
- kW 2,20 2,20 2,20 2,20 3,00 3,00 4,00 4,00 4,00 4,00
Input power (575V) - kW 1,50 1,50 1,50 1,50
Input current (230V) - A 7,80 7,80 7,80 7,80 10,00 10,00 13,20 13,20 13,20 13,20
Input current (460V) - A 4,50 4,50 4,50 4,50 5,00 5,00 6,60 6,60 6,60 6,60
Input current (575V) - A 2,20 2,20 2,20 2,20 4,00 4,00 5,30 5,30 5,30 5,30
SAFETY VALVE
Safety valve
- n° 1111111111
Safety valve
- PSI 87,0 87,0 87,0 87,0 87,0 87,0 87,0 87,0 87,0 87,0
SOUND DATA (COOLING MODE)
Sound power E
dB 74 75 77 78 75 76 77 78 78 79
A dB ----838485868686
Sound pressure E
dB 42 43 45 46 43 44 45 46 46 47
A dB ----515253545454
DIMENSIONS WEIGHT
Height
- inch 63,2 63,2 63,2 63,2 73,8 73,8 73,8 73,8 73,8 77,8
Width - inch 43,3 43,3 43,3 43,3 43,3 43,3 43,3 43,3 43,3 59,1
Lenght - inch 126,0 126,0 126,0 126,0 131,6 131,6 170,9 170,9 170,9 210,8
Weight (empty unit) - lb 1948,9 2004,0 2061,3 2244,3 2464,8 2570,6 3209,9 3262,8 3406,1 4931,7
SOUND POWER
Aermec determines sound power values on the
basis of measurements made in accordance with
UNI EN ISO 9614-2, as required for Eurovent certi-
fication.
SOUND PRESSURE
Sound pressure in free field, at 10m / 32,8ft distance
from the external surface of the unit (in accordance
with UNI EN ISO 3744).
18 INRP160HzTY. 13.12. 5806716_03

10. OPERATIONAL LIMITS
10.1. COOLING MODE
10.2. HEATING MODE
The units, in standard configuration, are not suitable
for installation in salty environments.
For functioning limits, please refer to the diagrams,
valid for ∆t 5°C/10°F.
0
5
10
15
20
25
30
35
40
45
50
55
60
32
40
50
60
70
80
90
100
110
120
130
140
-20-15-10-5 0 5 1015202530354045
42
-4 113
-5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 80 85 90 95 100 105 110
EXTERNAL AIR TEMPERATURE d.b.
PRODUCED WATER TEMPERATURE
CONDENSER
ATTENTION
In windy areas, for correct
operation of condensing control
it is recommended to install a
windbreak barrier.
It should be installed if wind velocity
is beyond 2,5 m/s.
0
10
20
30
40
50
60
70
80
90
100
110
120
122
-5
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
2345678910111213141516171819 °C
35,6 40 45 50 55 60 65 66,2 °F
EXTERNAL AIR TEMPERATURE (d.b.)
PRODUCED WATER TEMPERATURE EVAPORATOR
COOLING MODE
PRODUCED WATER TEMPERATURE EVAPORATOR
35,6
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 °C
40 45 50 55 60 65 66,2 °F
25
30
35
40
45
50
55
60
77
80
90
100
110
120
130
140
CHILLER + TOTAL RECOVERY
PRODUCED WATER
TEMPERATURE RECOVERY
In summer mode, the unit can be started with
external air 46°C/114,8°F and inlet water 35°C/95°F.
In winter and RECOVERY mode, the unit can be
started with external air -15°C/5°F and inlet water
20°C/68°F.
In these conditions, operation is only allowed for a
short amount of time and to bring the system to the
proper temperature.
To shorten this operation, it is recommended to
install a three-way valve which makes it possible to
bypass the water from the utilities to the plant, until
achieving conditions which allow the unit to work
within the allowed operating limits.
In summer mode, the unit can be started with
external air 46°C/114,8°F and inlet water 35°C/95°F.
In winter and RECOVERY mode, the unit can be
started with external air -15°C/5°F and inlet water
20°C/68°F.
In these conditions, operation is only allowed for a
short amount of time and to bring the system to the
proper temperature.
To shorten this operation, it is recommended to
install a three-way valve which makes it possible to
bypass the water from the utilities to the plant, until
achieving conditions which allow the unit to work
within the allowed operating limits.
19
INRP160HzTY. 13.12. 5806716_03

11. CORRECTIVE FACTORS FOR DATA DIFFERENT THAN NOMINAL IN COOLING MODE
ABCDEFG
Condenser utput
water temeprature
°C 20 25 30 35 40 45 46
°F 68 77 86 95 104 113 114,8
ABCDEFG
Condenser utput
water temeprature
°C 20 25 30 35 40 45 46
°F 68 77 86 95 104 113 114,8
EXTERNAL AIR TEMPERATURE d.b.
Cf: COOLING CAPACITY
CORRECTION COEFFICIENT
PRODUCED WATER TEMPERATURE EVAPORATOR
0,4
0,5
0,6
0,7
0,8
0,9
1,0
1,1
1,2
1,3
1,4
1,5
1,6
Pc: COOLING CAPACITY
G
F
E
D
C
B
A
4
39,2 404244464850525456586062 64,4
5 6 7 8 9 10 11 12 13 14 15 16 17 18 °C
°F
11.1. COOLING CAPACITY AND INPUT
POWER
The refrigerating capacity yielded and the input elec-
trical capacity in conditions other than
rated conditions are obtained by multiplying the
rated values (Pc, Pa) by the respective correction
coefficients (Cf, Ca).
The diagram allows you to obtain the correction
coefficients; corresponding to each curve,
the temperature of the cold processed water
referred to is reported, assuming a difference in
water temperature between the input and output of
the condenser equal to 5°C/10°F.
KEY:
Pc: Cooling capacity
Pa: Input power
Cf: Cooling capacity correction coefficient
Ca: Input power correction coefficient
11.2. FOR ΔT DIFFERENT FROM THE RA
TED VALUE
For Δt different from 5K, refer to Tab.
“ t DIFFERENT FROM NOMINAL (t 5)”
for the cooling capacity and input power correction
factors.
11.3. FOULING FACTORS
The performance levels indicated in table: ”FOUL
ING FACTOR K*M2/W” refer to conditions with
clean tubes, with a fouling factor = 1. For values
different from the fouling factor,
multiply the values in the performance table by the
reported coefficients.
t DIFFERENT FROM NOMINAL (t 5)
35810
Cooling capacity 0,99 1 1,02 1,03
Input power 0,99 1 1,01 1,02
Pc: COOLING CAPACITY
EXTERNAL AIR TEMPERATURE d.b.
Ca: INPUT POWER
CORRECTION COEFFICIENT
PRODUCED WATER TEMPERATURE EVAPORATOR
Pa: TOTAL INPUT POWER
G
F
A
B
C
D
E
0,4
0,5
0,6
0,7
0,8
0,9
1,0
1,1
1,2
1,3
1,4
1,5
1,6
4
39,2 404244464850525456586062 64,4
5 6 7 8 9 10 11 12 13 14 15 16 17 18 °C
°F
Pa: TOTAL INPUT POWER
FOULING FACTOR [K*M2]/[KW] correction factors
0,018 0,05 0,1
Cooling capacity 1 0,987 0,967
Input power 1 0,987 0,967
20 INRP160HzTY. 13.12. 5806716_03