AERMEC NRL 028-075 User manual

EN
Technical Manual
TRANSLATION FROM ORIGINAL
21.05. 5641300_07
CHILLER
REVERSIBLE HEAT PUMP
• EXTERNAL UNIT
• HIGH EFFICENCY
• HOT WATER PRODUCING UP TO 131°F / 55°C
• POWER SUPPLY 60Hz
GAS COOLING ONLYAHRI
CERTIFICATION
INTERTEK
CERTIFICATION
COOLING AND
HEATING
SCROLL
COMPRESSOR
AXIAL FAN PLATE
EXCHANGER
FREQUENCY
60Hz
NRL 028-075
NRL-H 028-075

3
NRL 028-075 60Hz
EN
AERMEC S.p.A. reserves the right at all times to make any modification for the improvement of its product and is not obliged to add these modification to machines of
previous manufacture that have already been delivered or are being built.
Dear Customer, Thank you for choosing an AERMEC product. This product is the result of many years of expe-
rience and in-depth engineering research, and it is built using top quality materials and advanced technologies.
In addition, the CE 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 dee-
med necessary for improving the product without the obligation to give prior notice.
Thank you again.
AERMEC S.p.A

4
NRL 028-075 60Hz
EN

5
NRL 028-075 60Hz
EN
 ........................................................... 6
2. Check list........................................................................................... 6
 ...................................................................................... 7
4. Cooling circuit ................................................................................... 8
4.1. NRL cooling circuit only cooling........................................................................ 8
4.2. NRL cooling circuit heat pump ......................................................................... 9
 ............................................................. 10
5.1. Chiller circuit................................................................................................... 10
5.2. Frame and fans ............................................................................................... 10
5.3. Hydraulic circuit standard components .......................................................... 10
  ........................................... 10
5.5. Safety and control components...................................................................... 10
5.6. Electrical panel control and power ................................................................. 11
6. Accessories...................................................................................... 12
6.1. Electrical accesories ....................................................................................... 12
7. Technical data version ......................................................... 13
7.1. Electrical data models without pump + "°" ON/OFF FAN ............................. 14
7.2. Electrical data models without pump + "I" EC INVERTER FAN...................... 15
8. Technical data  version.................................................... 17
8.1. Electrical data models without pump + "°" ON/OFF FAN ............................. 18
8.2. Electrical data models without pump + "I" EC INVERTER FAN...................... 19
 ................................................................................ 21
9.1. Cooling mode ¹................................................................................................ 21
  ............................................................................................... 21
9.3. Project data..................................................................................................... 21
 ............................................................................ 22
10.1. Input power and cooling capacity
"standard version"/ "heat pump version in cooling mode" ........................... 22
 .................................................................. 23
 ....................................................................... 23
10.4. Deposit factors................................................................................................ 23
11. Desuperheater ................................................................................ 24
12. Total recovery.................................................................................. 25
12.1. Pressure drops ................................................................................................ 25
13. Pressure drop.................................................................................. 26
13.1. System side total pressure drop only cooling version..................................... 26
13.2. System side total pressure drop heat pump in cooling mode......................... 26
  ........................ 26
14. Useful heads ................................................................................... 27
14.1. Only cooling low pump useful heads NRL 280 - 750 60hz / 230v - 460v........ 27
14.2. Only cooling low pump useful heads NRL 280 - 750 60hz / 575v................... 27
14.3. Only cooling high pump useful heads NRL 280 - 750 60hz / 230v - 460v....... 28
14.4. Only cooling high pump useful heads NRL 280 - 750 60hz / 575v ................. 28
14.5. Heat pump low pump useful heads NRL 280 - 750 60hz / 230v - 460v.......... 29
14.6. Heat pump low pump useful heads NRL 280 - 750 60hz / 575v..................... 29
14.7. Heat pump high pump useful heads NRL 280 - 750 60hz / 230v - 460v......... 30
14.8. Heat pump high pump useful heads NRL 280 - 750 60hz / 575v ................... 30
15. Glycol .............................................................................................. 31
 .............................................................. 32
17. Minimum water content................................................................. 32
18. Part load.......................................................................................... 33
19. Sound data...................................................................................... 34
 ...................................... 35
 ............................................................................................. 36
INDEX

6
NRL 028-075 60Hz
EN
Standards and Directives respected on
designing and constructing the unit:
PROTECTION RATING
1. IP 24
ACOUSTIC PART:
1. ISO DIS 9614/2

2. 
3. SOUND PRESSURE (EN ISO 3744)
REFRIGERANT GAS:
This unit contains fluoride gases with
greenhouse effect covered by the
Kyoto Protocol. Maintenance and
disposal must only be performed by
qualified staff.
STANDARD:
UL 1995
Heating and cooling equipment.
ANSI/NFPA
Standard 70 National Electrical code
(N.E.C.).
CSA C.22.1.- C.22.2
Safety Standard Electrical Installation.
Chillers and heat pumps for outdoor condensed in the
air with R410A Series NRL have been designed and
manufactured to satisfy heating and cooling needs
and the production of domestic hot water (DHW) in
medium to small commercial or residential buildings.
Maximum reliability
The presence of several scroll compressors allows NRL
chillers various partialisations of the cooling capacity.
Models:
1. NRL "°" standard chiller
2. NRL "H" heat pump *
3. NRL "C" motocondensing
The versions can be in different set-ups at the same
time in order to satisfy a wide range of plant enginee-
ring solutions:
1. "A" HIGH EFFICIENCY
2. "E" SILENCED HIGH EFFICIENCY
3. "D" WITH DESUPERHEATER
4. "T" WITH TOTAL RECOVERY
1. DESCRIPTION AND CHOCE OF UNIT
* Possibility of production of D.H.W.
- only "I" version (fan speed modulating for condensation control).
- VMF
- AER485
2. CHECK LIST
COMPONENTS VERSIONS
COOLING CIRCUIT ° H C D T
 yes yes no no no
 yes yes no yes yes
 no no no no yes
 no no no yes no
AIR SIDE EXCHANGE yes yes yes yes yes
COMPRESSOR yes yes yes yes yes
 yes yes yes yes yes
HIGH PRESSURE SWITCH yes yes yes yes yes
LOW PRESSURE SWITCH no no no no no
HIGH PRESSURE TRANSDUCER yes yes yes yes yes
LOW PRESSURE TRANSDUCER yes yes yes yes yes
LIQUID INDICATOR yes yes yes yes yes
LIQUID TANK no yes no no yes
 no yes no no yes
LIQUID SEPARATOR no yes no no yes
 no yes no no yes

7
NRL 028-075 60Hz
EN
3. CONFIGURATOR
DESCRIPTION
1,2,3 NRL
4,5,6 SIZE
028 - 030 - 033 - 035 - 050 - 055 - 060 - 065 - 070 - 075
7 COMPRESSOR
0
8 THERMOSTATIC VALVE
°Standard mechanical thermostatic valve with produced water up to 39,2°F / +4°C
YMechanical thermostatic valve with produced water from 39,2°F / +4°C to -42,8°F / -6°C
XElectronic thermostatic valve min. Water out temp 39,2°F / +4°C, (contact the factory for lower temperatures)
9 MODELS
°Chiller only
HHeat pump
C
Without evaporator
10 HEATHING RECOVERY
°Without Recovery
DWith Desuperheater
TWith Total Heat Recovery
11 VERSION
AHigh efficiency (not available for size 028 ÷ 035)
EHigh efficiency low noise (data on demand for size 050 ÷ 075)
12 COILS
°Alluminium
RCopper
SCopper tin plated
VEpoxy coated
13 FANS
°Standard (not available for 208/3/60 supply)
IEC Fan speed modulating for condensation control ( mandatory for 208/3/60 supply)
14 SUPPLY
6
230V ±10% -3-60Hz with thermomagnetic switches
7
460V ±10% -3-60Hz with thermomagnetic switches
8
575V ±10% -3-60Hz with thermomagnetic switches
9
208V ±5% -3-60Hz with thermomagnetic switches
15,16 HYDRONIC KIT
00 Without hydronic kit
01 Tank and single low head pump
02 Tank and single low head pump and reserve pump
03 Tank and single high head pump
04 Tank and single high head pump and reserve pump
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


HT / HC
TC / DC


8
NRL 028-075 60Hz
EN
4. COOLING CIRCUIT
CN
TEV
IDL IDL
HPT HPS
LPT
CP CP
LPT
BHE
HPT HPS
TEV
F F
CN
KEY
BHE: SCAMBIATORE A PIASTRE
CN: BATTERIA ALETTATA
CP: COMPRESSORE
F: FILTRO DEIDRATATORE
HPS: PRESSOSTATO DI ALTA PRESSIONE
HPT: TRASDUTTORE ALTA PRESSIONE
IDL: INDICATORE DI LIQUIDO
LPT: TRASDUTTORE BASSA PRESSIONE
KEY
BHE EXCHANGER PLATE
CN AIR SIDE EXCHANGE
CP COMPRESSOR
F
HPS HIGH PRESSURE SWITCH
HPT HIGH PRESSURE TRANSDUCER
IDL LIQUID INDICATOR
LPT LOW PRESSURE TRANSDUCER
4.1. NRL COOLING CIRCUIT ONLY COOLING

9
NRL 028-075 60Hz
EN
KEY
AL: ACCUMULO DEL LIQUIDO
BHE: SCAMBIATORE A PIASTRE
CN: BATTERIA ALETTATA
CP: COMPRESSORE
CV: VALVOLA DI NON RITORNO
F: FILTRO DEIDRATATORE
HPS: PRESSOSTATO DI ALTA PRESSIONE
HPT: TRASDUTTORE ALTA PRESSIONE
IDL: INDICATORE DI LIQUIDO
LPT: TRASDUTTORE BASSA PRESSIONE
LS: SEPARATORE DI LIQUIDO
VIC: VALVOLA INVERSIONE CICLO
HPT HPS
LS
VIC VIC
LS
HPS
LPT LPT
HPT
BHE
IDL IDL
CP
CN
CV CV
CV
CV
CV
CN
TEV TEV
F
AL
F
CV
CV
AL
CP
CV
KEY
AL LIQUID TANK
BHE EXCHANGER PLATE
CN AIR SIDE EXCHANGE
CP COMPRESSOR
CV 
F
HPS HIGH PRESSURE SWITCH
HPT HIGH PRESSURE TRANSDUCER
IDL LIQUID INDICATOR
LPT LOW PRESSURE TRANSDUCER
LS LIQUID SEPARATOR
VIC 
4.2. NRL COOLING CIRCUIT HEAT PUMP

10
NRL 028-075 60Hz
EN
5. DESCRIPTION OF COMPONENTS
5.1. CHILLER CIRCUIT
SCROLL COMPRESSORS
High efficiency scroll-type hermetic compressors,
assembled on elastic antivibration supports,
driven by a 2-pole electric motor with internal
thermal protection. of the electric heater casing
included as standard. The heater is automatically
powered when the unit stops, provided that the
unit is kept under tension.
WATER SIDE HEAT EXCHANGER
Of the plate-type (AISI 316), externally insula-
ted with closed cell material to reduce thermal
dispersion. Fitted, as standard, with antifreeze
heater.
5.1.1. WATER FEATURES
SOURCE SIDE HEAT EXCHANGER
Made with copper pipes and aluminium louvered
fins blocked by mechanical expansion of the
pipes. Provided with protective grid.
DESUPERHEATER / TOTAL RECOVERY
Unit with (AISI 316) heat plate, insulated exter-
nally with closed cell material to reduce heat loss.
CYCLE INVERSION VALVE

4way cycle inversion valve. Inverts the flow of
refrigerant gas.
LIQUID STORAGE TANK


Compensates the difference in volume between
louveres coil and plate exchanger, withholding
excess liquid.
DEHYDRATOR FILTER
Hermetic-mechanical with cartridges made of ce-
ramic and hygroscopic material, able to withhold
impurities and any traces of humidity present in
the cooling circuit.

Allows the passage of the refrigerant in just one
direction.
MECHANICAL THERMOSTATIC VALVE
The mechanical valve, with external equaliser
positioned at the evaporator inlet, modulates the
flow of gas to the evaporator, according to the
heat load, in order to ensure a correct heating
level of the intake gas.
SOLENOID VALVE
The valve closes when the compressor turns off,
preventing the flow of refrigerant gas towards the
evaporator.
INDICATOR FOR LIQUID PASSAGE WITH HU
MIDITY PRESENCE SIGNAL
Used to check the refrigerant gas load and the
eventual presence of humidity in the cooling
circuit.
LIQUID AND PRESSING LINE TAPS

Allows interruption of the refrigerant in the case
of extraordinary maintenance.
LIQUID SEPARATOR

Located on the suction point of the compressor,
to protect against any flowback of liquid refrige-
rant, flooded start-ups, operation in the presence
of liquid.
BY PASS SOLENOIDE VALVE

By-passes the thermostatic valve during the
defrosting cycle.
5.2. FRAME AND FANS
SUPPORT FRAME
Load-bearing structure Made of hot-galvanised
steel sheet of a suitable thickness, varnished with
polyester
powders able to resist atmospheric agents over
time.
VENTILATION UNIT
Axial fan, balanced statically and dynamically.
The electric fans are protected electrically by
magnet-circuit breakers and mechanically by
anti-intrusion metal grids, according to the IEC EN
60335-2-40 Standard.
5.3. HYDRAULIC CIRCUIT STANDARD COM
PONENTS
WATER FILTER
Equipped with steel filtering mesh; prevents the
heat exchangers from clogging.
FLOW SWITCH
It checks that there is circulation of water.If
this is not the case, it blocks the unit
SAFETY VALVE
Equipped with a piped discharger and intervenes
by discharges the over pressure in case of anoma-
lous pressures.
WATER TEMPERATURE PROBE (IN-OUT)
AIR VENT
Of the automatic type, assembled on the upper
part of the hydraulic system; it releases any air
bubbles that may be present in the system.
DRAIN TAP
5.4. HYDRAULIC COMPONENTS FOR CONFI
GURABLE VERSIONS
CIRCULATION PUMP

Depending on the characteristics of the pump
chosen, it offers a useful head to overcome the
pressure drops in the system.
EXPANSION TANK


With nitrogen pre-load membrane.
SAFETY VALVE
Equipped with a piped discharger and intervenes
by discharges the over pressure in case of anoma-
lous pressures.
STORAGE TANK
In order to reduce the thermal dispersion and
eliminate the phenomenon of the formation of
condensation, it is insulated with polyurethane
material of a suitable thickness. It is required to
reduce the number of peaks of the compressor
and to even the temperature of water to be sent
to the utilities.
STORAGE TANK DRAIN TAP
5.5. SAFETY AND CONTROL COMPONENTS

With fixed calibration, placed on high pressure
side of cooling circuit, inhibits functioning of
compressor if
abnormal work pressure occurs.
HIGH PRESSURE TRANSDUCER
Placed on high pressure side of cooling circuit,
signals the work pressure to control board, gene-
rating a pre-warning in case abnormal pressure
occurs.
LOW PRESSURE TRANSDUCER
Allows displaying, on the microprocessor board
display, the value of the compressor's suction
pressure (one per circuit) on the low-pressure
side of the cooling circuit
SAFETY VALVE
Equipped with a piped discharger and intervenes
by discharges the over pressure in case of anoma-
lous pressures.
- Set at 45 bar on the branch HP
- Set at 30 bar on the branch LP
LOW PRESSURE SWITCH
System: Chiller with plate heat exchanger
PH 7.5-9
Electric conductivity 10-500μS/cm
Total hardness 4.5-8.5°dH
Temperature < 65°C
Oxygen content < 0.1 ppm
Max. glycol amount 50%
Phosphates (PO4) < 2ppm
Manganese (Mn) < 0.05 ppm
Iron (Fe) < 0.3 ppm
Alkalinity (HCO3) 70 - 300 ppm
Chloride ions (Cl-) < 50 ppm
Sulphate ions (SO4) < 50 ppm
Sulphide ion (S) none
Ammonium ions (NH4) none
Silica (SiO2) < 30ppm

11
NRL 028-075 60Hz
EN
ELECTRONIC REGULATION
Microprocessor board
Composed of management & control board
and display board.
Functions performed
 

accessory)
compressor start up delay
 
 
start/stop;
reset;
permanent memory of alarms;
 
 
working with local or remote control.
(accessory PGD1)
Machine state display
ON/OFF compressors.
alarms summary
Alarm Management
high pressure.
 
low pressure.
 
overload compressors;
overhead fans;
overload pumps.
Viewing of the following parameters
water inlet temperature;
water outlet temperature;
delta T;
high pressure;
low pressure;
 
alarms display

• a) without password:
cold set;
total differential;
• b) with password:
antifreeze set;
time exclusion low pressure;
display language;
access code.
For more information refer to the user manual.
5.6. ELECTRICAL PANEL CONTROL AND
POWER
Electric control board in compliance with Standards
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,
- clamps 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 con-
sent relay (for versions without pump units only),
- All numbered cables.

The switchboard can be accessed by removing the
voltage via the lever on the same switchboard. This
lever can be locked using one or more padlocks during
maintenance interventions in order to prevent the
machine being made live accidentally.
CONTROL KEYBOARD
Allows complete control of the appliance. For a more
in-depth description please refer to the user manual.
ATTENTION
In heat pump models the desuperheater

warranty will be come void.

12
NRL 028-075 60Hz
EN
6. ACCESSORIES
6.1. ELECTRICAL ACCESORIES
SPECIFIC ACCESSORIES FOR MODELS “°” COOLING ONLY
WITH DESUPERHEATER “° / D”
AER485P1: RS-485 interface for supervising systems
with MODBUS protocol.
PGD1: Simplified remote panel. Allows control of basic
unit functions and alarm notification. Remote mounted
up to 500 m away with TWISTED PAIR SCREENED cable
and TCONN6J000.
DCPX: Low ambient device for cooling operation below
10°C down to -10°C.
SPECIFIC ACCESSORIES FOR MODELS WITH TOTAL
RECOVERY “° T” AND CONDENSING UNITS “C”
AERNET: The device allows the control, the manage-
ment and the remote monitoring of a Chiller with a PC,
smartphone or tablet using Cloud connection. AERNET
works as Master while every unit connected is confi-
gured as Slave (max. 6 unit); also, with a simple click is
possible to save a log file with all the connected unit
datas in the personal terminal for post analysis.
AER485P1: RS-485 interface for supervision systems
with MODBUS protocol
DRE
It allows the reduction of peak power necessary for the
machine during start-up phase.
Accessories can only be fitted in the factory.
MULTICHILLER_EVO: Control, switch-on and switch-off
system of the single chillers where multiple units are
installed in parallel, always ensuring constant flow rate
to the evaporators.
PGS: Daily/Weekly Programmer.
Allows you to programme two time bands per day
(two switch on/off cycles) and to have differentiated
programming for each day of the week.
PRM1-PRM2
pressure switch electrically wired in series with the exi-
sting automatic high pressure switch on the compressor
discharge pipe.
Compatibility with the VMF system.
For further system information please refer to the
specific documentation.
VT
Group of anti-vibration, to be installed under the base.
GP
Protection grille, protects the external coil from acciden-
tal knocks.
For more information please contact us
NRL : NRL028 E NRL030 E NRL033 E NRL035 E NRL050 A NRL055 A NRL060 A NRL065 A NRL070 A NRL075 A
00 VT 17 VT 17 VT 17 VT 17 VT 13 VT 13 VT 22 VT 22 VT 22 VT 23
P2 / P4 VT 17 VT 17 VT 17 VT 17 VT 13 VT 13 VT 22 VT 22 VT 22 VT 23
P1 / P3 VT 17 VT 17 VT 17 VT 17 VT 13 VT 13 VT 22 VT 22 VT 22 VT 23
02 / 04 VT 13 VT 13 VT 13 VT 13 VT 10 VT 10 VT 22 VT 22 VT 22 VT 23
01 / 03 VT 13 VT 13 VT 13 VT 13 VT 10 VT 10 VT 22 VT 22 VT 22 VT 23
GP GP3 GP4 GP4 GP4 2 x GP2 2 x GP2 3 x GP2 3 x GP2 3 x GP2 3 x GP10
NRL : NRL028°H°E°° NRL030HE NRL033HE NRL035HE NRL050 HA NRL055 HA NRL060 HA NRL065 HA NRL070 HA NRL075 HA
00 VT 17 VT 17 VT 17 VT 17 VT 13 VT 13 VT 22 VT 22 VT 22 AVX 7001
P2 / P4 VT 17 VT 17 VT 17 VT 17 VT 13 VT 13 VT 22 VT 22 VT 22 AVX 7001
P1 / P3 VT 17 VT 17 VT 17 VT 17 VT 13 VT 13 VT 22 VT 22 VT 22 AVX 7001
02 / 04 VT 13 VT 13 VT 13 VT 13 VT 10 VT 10 VT 22 VT 22 VT 22 AVX 7002
01 / 03 VT 13 VT 13 VT 13 VT 13 VT 10 VT 10 VT 22 VT 22 VT 22 AVX 7002
GP GP3 GP4 GP4 GP4 2 x GP2 2 x GP2 3 x GP2 3 x GP2 3 x GP2 4 x GP10
Versions with Total Recovery and Condensing Units
are equipped with GR3 electronics
(standard remote panel)
All the other versions have pCO5 electronics
(remote panel available as accessory)

13
NRL 028-075 60Hz
EN
7. 
TECHNICAL DATA

TECHNICAL DATA "H" VERSIONTECHNICAL DATA "C" VERSION
COOLING (AHRI CONDITIONS)
Outlet water temperature 6,7°C / 44,06°F
Flow rate 0,043l/s per kW
External temperature 35°C / 95°F
(1) data refered no pump version
AHRI conditions: leaving water 6.7°C / 44.06°F
flow rate 0.043 l/s per kW (full load)
Load 100% air 35°C / 95°F
Load 75% air 26.7°C / 80°F
Load 50% air 18.3°C / 65°F
Load 25% air 12.8°C / 55°F
DESUPERHEATER / TOTAL RECOVERY
Entering water 113°F
leaving water 122°F
Models 028 030 033 035 050 055 060 065 070 075
Cooling capacity
A Alls ton ----25.51 30.14 37.16 41.74 46.86 49.90
E Alls ton 13.71 16.01 18.40 23.52 - - - - - -
Total power input
A Alls kW - - - - 29.93 35.21 42.69 49.07 54.76 59.03
E Alls kW 15.55 18.05 20.75 26.88 - - - - - -
Total power input
with LOW - PUMP (P1-P2-01-02)
A Alls kW - - - - 31.20 36.59 44.18 51.53 57.31 61.63
E Alls kW 16.38 18.94 21.69 27.94 - - - - - -
Total power input
with HIGH - PUMP (P3-P4-03-04)
A Alls kW - - - - 31.69 37.12 44.79 52.23 58.06 62.41
E Alls kW 16.73 19.32 22.11 28.44 - - - - - -
Cooling total input current
A Alls A- - - - 49 57 71 79 86 95
E Alls A31 34 40 47 - - - - - -
EER
A Alls BTU/W - - - - 10.23 10.27 10.44 10.21 10.27 10.14
E Alls BTU/W 10.58 10.64 10.64 10.50 - - - - - -
IPLV
A Alls BTU/W - - - - 15.83 15.98 15.98 15.55 15.13 14.67
E Alls BTU/W 14.43 14.43 14.47 14.43 - - - - - -
Water flow
A Alls gpm - - - - 61.03 72.11 88.90 99.86 112.1 119.4
E Alls gpm 32.80 38.30 44.02 56.27 - - - - - -
Total pressure drops
A Alls ftHO - - - - 11.4 12.0 18.1 19.7 20.1 23.4
E Alls ftHO 9.70 9.37 8.36 13.4 - - - - - -
Useful head
with LOW - PUMP (P1-P2-01-02)
A Alls ftHO - - - - 38.16 34.50 22.34 44.98 42.00 36.84
E Alls ftHO 43.58 42.88 42.54 34.21 - - - - - -
Useful head
with HIGH - PUMP (P3-P4-03-04)
A Alls ftHO - - - - 61.72 58.25 46.45 66.37 63.84 58.98
E Alls ftHO 65.71 65.26 65.22 57.58 - - - - - -
NRL ONLY COOLING WITH DESUPERHEATER
Heating power recovered DE-DA Alls BTU/h 57,670 67,220 77,110 97,930 107,100 126,600 155,900 175,400 196,900 209,500
Water flow DE-DA Alls gpm 12.96 15.10 17,33 22.00 24.07 28.44 35.05 39.41 44.24 47.07
Pressure drop DE-DA Alls ftHO 2.34 3.33 4.33 5.00 6.00 8.33 12.7 12.7 16.0 18.3
Q.ty DE-DA Alls nr. 22222 2 2 2 2 2
Defrost electric heater DE-DA Alls nr. / W 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40
Water content DE-DA Alls l 0.7 / 0.7 0.7 / 0.7 0.7 / 0.7 1.1 / 1.1 1.1 / 1.1 1.1 / 1.1 1.1 / 1.1 1.5 / 1.5 1.5 / 1.5 1.5 / 1.5
Water connections DE-DA Alls inch 1"½ 1"½ 1"½ 1"½ 1"½ 1"½ 1"½ 1"½ 1"½ 1"½
NRL COOLING ONLY WITH TOTAL RECOVERY
Cooling + total recovery
Cooling capacity TE-TA Alls ton 13.71 16.01 18.40 23.52 25.51 30.14 37.16 41.74 46.86 49.90
Total power input TE-TA Alls kW 15.55 18.05 20.75 26.88 29.93 35.21 42.69 49.07 54.76 59.03
Total Recovery
Heating power recovered TE-TA Alls BTU/h 200,000 226,200 265,500 342,600 370,900 436,400 529,200 603,900 676,300 721,000
Water flow TE-TA Alls gpm 44.93 50.83 59.65 76.97 83.33 98.06 118.9 135.7 152.0 162.0
Pressure drop TE-TA Alls ftHO 8.33 10.7 14.7 12.7 14.7 20.0 29.3 31.0 26.3 17.0
Q.ty TE-TA Alls nr. 2222 2 22222
Defrost electric heater TE-TA Alls nr. / W 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40
Water content TE-TA Alls l 4.8 / 4.8 4.8 / 4.8 4.8 / 4.8 8.2 / 8.2 8.2 / 8.2 8.2 / 8.2 8.2 / 8.2 10.5 / 10.5 19 / 19 19 / 19
Water connections TE-TA Alls inch 2" 2" 2" 2" 2" 2" 2" 2" 2" 2"
IP TE-TA Alls - 24 24 24 24 24 24 24 24 24 24

14
NRL 028-075 60Hz
EN
Models 028 030 033 035 050 055 060 065 070 075
Alimentation 230V60Hz
MODELS WITHOUT PUMP
LRA A - - - - 372 392 377 447 465 521
E 227 275 288 358 - - - - - -
MCA A - - - - 150 150 175 225 250 250
E 70 80 90 125 - - - - - -
MOP A - - - - 175 175 175 250 250 300
E 90 110 110 175 - - - - - -
MODELS WITH LOW PUMP

LRA A - - - - 378 397 382 458 476 532
E 232 280 292 362 - - - - - -
MCA A - - - - 150 150 175 225 250 300
E 75 80 90 150 - - - - - -
MOP A - - - - 175 200 200 250 300 300
E 100 110 110 175 - - - - - -
MODELS WITH HIGH PUMP

LRA A380 400 385 460 478 534
E 235 283 296 366 - - - - - -
MCA A - - - - 150 175 175 225 300 300
E 80 90 100 150 - - - - - -
MOP A - - - - 175 200 200 250 300 300
E 100 110 125 175 - - - - - -
Alimentation 460/3/60Hz
MODELS WITHOUT PUMP
LRA A - - - - 186 195 191 220 228 265
E 124 153 158 187 - - - - - -
MCA A - - - - 70 75 90 100 110 125
E 40 50 60 70 - - - - - -
MOP A - - - - 80 90 100 110 125 125
E 50 60 70 80 - - - - - -
MODELS WITH LOW PUMP

LRA A - - - - 188 197 194 226 234 270
E 126 155 160 190 - - - - - -
MCA A - - - - 70 80 100 110 125 125
E 45 60 60 70 - - - - - -
MOP A - - - - 80 90 110 125 125 125
E 50 60 70 90 - - - - - -
MODELS WITH HIGH PUMP

LRA A - - - - 190 199 195 227 235 271
E 128 157 162 191 - - - - - -
MCA A - - - - 70 80 100 110 125 125
E 45 60 60 70 - - - - - -
MOP A - - - - 80 90 110 125 125 150
E 50 70 75 90 - - - - - -
Alimentation 575/3/60Hz
MODELS WITHOUT PUMP
LRA A - - - - 137 144 132 164 171 199
E 97 102 106 138 - - - - - -
MCA A - - - - 60 60 70 90 100 110
E 30 40 45 60 - - - - - -
MOP A - - - - 70 75 75 100 110 125
E 40 50 50 75 - - - - - -
MODELS WITH LOW PUMP

LRA A - - - - 140 146 134 169 175 204
E 98 103 108 140 - - - - - -
MCA A - - - - 60 60 70 90 100 110
E 35 40 45 60 - - - - - -
MOP A - - - - 70 80 80 100 110 125
E 40 50 50 75 - - - - - -
MODELS WITH HIGH PUMP

LRA A - - - - 141 147 135 170 176 205
E 100 105 109 141 - - - - - -
MCA A - - - - 60 70 70 90 110 110
E 35 40 45 60 - - - - - -
MOP A - - - - 75 80 80 100 110 125
E 40 50 50 80 - - - - - -
7.1. ELECTRICAL DATA MODELS WITHOUT PUMP + "°" ON/OFF FAN
LRA: Peak current
MCA: Minimum circuit amperage
MOP: Maximum overcurrent permitted by the protection device

15
NRL 028-075 60Hz
EN
Models 028 030 033 035 050 055 060 065 070 075
Alimentation 208V60Hz
MODELS WITHOUT PUMP
LRA A - - - - 385 407 398 469 489 546
E 243 291 307 378 - - - - - -
MCA A - - - - 150 150 175 225 250 300
E 90 90 100 150 - - - - - -
MOP A - - - - 175 200 200 250 250 300
E 100 110 125 175 - - - - - -
MODELS WITH LOW

LRA A - - - - 391 413 404 480 500 557
E 247 295 311 382 - - - - - -
MCA A - - - - 150 175 175 225 300 300
E 90 100 110 150 - - - - - -
MOP A - - - - 175 200 200 250 300 300
E 110 125 125 175 - - - - - -
MODELS WITH HIGH

LRA A - - - - 393 415 406 483 503 560
E 251 299 315 386 - - - - - -
MCA A - - - - 150 175 200 225 300 300
E 90 100 110 150 - - - - - -
MOP A - - - - 175 200 200 250 300 300
E 110 125 125 175 - - - - - -
Alimentation 230V60Hz
MODELS WITHOUT PUMP
LRA A 374 394 380 450 468 524
E 234 282 296 366 - - - - - -
MCA A - - - - 150 150 175 225 250 300
E 75 90 100 150 - - - - - -
MOP A - - - - 175 175 175 250 250 300
E 100 110 125 175 - - - - - -
MODELS WITH LOW

LRA A - - - - 380 399 385 461 479 535
E 238 286 300 370 - - - - - -
MCA A - - - - 150 175 175 225 300 300
E 80 90 100 150 - - - - - -
MOP A - - - - 175 200 200 250 300 300
E 100 110 125 175 - - - - - -
MODELS WITH HIGH

LRA A - - - - 382 402 388 463 481 537
E 242 290 304 374 - - - - - -
MCA A - - - - 150 175 175 225 300 300
E 90 90 110 150 - - - - - -
MOP A - - - - 175 200 200 250 300 300
E 110 110 125 175 - - - - - -
Alimentation 460/3/60Hz
MODELS WITHOUT PUMP
LRA A - - - - 186 195 192 221 229 265
E 127 156 163 192 - - - - - -
MCA A - - - - 70 75 90 100 110 125
E 45 60 60 70 - - - - - -
MOP A - - - - 80 90 100 110 125 125
E 50 70 75 90 - - - - - -
MODELS WITH LOW

LRA A - - - - 189 198 194 226 234 270
E 129 158 165 194 - - - - - -
MCA A - - - - 70 80 100 110 125 125
E 45 60 70 75 - - - - - -
MOP A - - - - 80 90 110 125 125 125
E 50 70 80 90 - - - - - -
MODELS WITH HIGH

LRA A - - - - 190 199 196 227 235 272
E 131 160 167 196 - - - - - -
MCA A - - - - 70 80 100 110 125 125
E 50 60 70 75 - - - - - -
MOP A - - - - 80 100 110 125 125 150
E 50 75 80 90 - - - - - -
Alimentation 575/3/60Hz
MODELS WITHOUT PUMP
LRA A - - - - 137 144 132 164 170 199
E 99 104 109 142 - - - - - -
MCA A - - - - 60 60 70 90 100 110
E 35 40 45 60 - - - - - -
MOP A - - - - 70 75 75 100 110 125
E 40 50 50 80 - - - - - -
MODELS WITH LOW

LRA A - - - - 139 146 134 168 174 203
E 101 106 111 143 - - - - - -
MCA A - - - - 60 60 70 90 100 110
E 35 45 50 70 - - - - - -
MOP A - - - - 70 80 80 100 110 125
E 40 50 50 80 - - - - - -
MODELS WITH HIGH

LRA A - - - - 140 147 135 169 175 204
E 102 107 113 145 - - - - - -
MCA A - - - - 60 70 70 90 100 110
E 40 45 50 70 - - - - - -
MOP A - - - - 70 80 80 100 110 125
E 45 50 60 80 - - - - - -
7.2. ELECTRICAL DATA MODELS WITHOUT PUMP + "I" EC INVERTER FAN

16
NRL 028-075 60Hz
EN
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 certification.
Sound pressure:
Sound pressure in free field, at 10 m distance from the
external surface of the unit (in accordance with UNI EN
ISO 3744)
Models 028 030 033 035 050 055 060 065 070 075
SYSTEM SIDE EXCHANGER
Exchanger capacity A / E gal 1,1 1,3 1,7 1,7 2,2 2,9 2,9 3,4 4,8 3,7
Hydraulic connection (victaulic) Ø 2”1/2 2”1/2 2”1/2 2”1/2 2”1/2 2”1/2 2”1/2 2”1/2 2”1/2 3”
HYDRONIC KIT SYSTEM SIDE
STORAGE TANK
Storage tank capacity A/E/HA/HE l 300 300 300 300 500 500 500 500 500 700
Storage tank capacity A/E/HA/HE gal 79 79 79 79 132 132 132 132 132 184,8
EXPANSION VASSEL
Expansion vassel n°/gal 1 / 6.60 1 / 6.60 1 /6.60 1 /6.60 1 /6.60 1 /6.60 1 /6.60 1 /6.60 1 /6.60 1 /6.60
Expansion vassel calibration p.s.i. 21 21 21 21 21 21 21 21 21 21
SAFETY VALVE
Safety valve n°/bar 1/6 1/6 1/6 1/6 1/6 1/6 1/6 1/6 1/6 1/6
AXIAL STANDARD FAN
Quantity n° 6 6 8 8 2 2 3 3 3 3
Air flow cfm 13570 14632 18408 17422 23600 23246 36344 36344 35164 35754
Input current
230V A
6.96 6.96 9.28 9.28
13.0 13.0 19.5 19.5 19.5 19.5
460V A 7.6 7.6 11.4 11.4 11.4 11.4
575V A 6.64 6.64 9.96 9.96 9.96 9.96
Input power 230V|460V kW 1.56 1.56 2.08 2.08 4.0 4.0 6.0 6.0 6.0 6.0
575V kW 1.56 1.56 2.08 2.08 4.36 4.36 6.54 6.54 6.54 6.54
SOUND DATA
Sound pressure A dB(A) - - - - 51 52 53 54 54 54
E dB(A) 42 43 45 46 - - - - - -
Sound power A dB(A) - - - - 83 84 85 86 86 86
E dB(A) 74 75 77 78 - - - - - -
the reported data can be amended any time aermec considers it necessary
Refrigerant R410A
A/E C1 Kg
lb
6.6
14.55
8.6
18.96
8.5
18.74
12.3
27.12
12.5
27.56
16.6
36.60
18.0
39.68
18.0
39.68
23.8
52.47
24.0
52.91
A/E C2 Kg
lb
6.6
14.55
8.6
18.96
8.5
18.74
12.3
27.12
12.5
27.56
16.6
36.60
18.0
39.68
18.0
39.68
23.8
52.47
25.5
56.22
Oil
A/E C1 Kg
lb
1.8
3.96
3.4
7.49
3.4
7.49
3.4
7.49
3.6
7.93
6.8
8.37
6.8
8.37
6.8
8.37
6.8
8.37
6.8
8.37
A/E C2 Kg
lb
1.8
3.96
1.8
3.96
3.4
7.49
3.4
7.49
3.4
7.49
3.4
7.49
6.8
8.37
6.8
8.37
6.8
8.37
6.8
8.37

Height A-E - in 63 63 63 63 74 74 74 74 74 78
Width A-E - in 43 43 43 43 43 43 43 43 43 59
Depth A-E - in 97 116 116 116 119 119 158 158 158 172
Weight A-E -Kg
lb
635
1402
702
1548
710
1567
776
1711
848
1870
941
2075
1099
2425
1109
2447
1109
2447
1619
3571

17
NRL 028-075 60Hz
EN
8. TECHNICAL DATA "HA - HE" VERSION
HEATING (AHRI CONDITIONS)
Inlet water temperature 40°C / 104 °F
Outlet water temperature 45°C / 113 °F
External air temperature 7°C b.s / 6°C b.u.
COOLING (AHRI CONDITIONS)
Outlet water temperature 6,7°C / 44,06°F
Flow rate 0,043l/s per kW
External temperature 35°C / 95°F
(1) data refered no pump version
AHRI conditions: leaving water 6.7°C / 44.06°F
flow rate 0.043 l/s per kW (full load)
Load 100% air 35°C / 95°F
Load 75% air 26.7°C / 80°F
Load 50% air 18.3°C / 65°F
Load 25% air 12.8°C / 55°F
Models 028 030 033 035 050 055 060 065 070 075
Cooling mode
Cooling capacity HA Alls ton - - - - 24.85 28.95 35.15 40.78 45.13 49.56
HE Alls ton 13.05 15.44 17.54 22.15 - - - - - -
Total power input HA Alls kW - - - - 29.03 34.39 41.28 47.66 53.57 58.51
HE Alls kW 15.05 17.46 20.07 25.85 - - - - - -
Total power input
with LOW PUMP (P1-P2-01-02)
HA Alls kW - - - - 30.29 35.74 42.74 50.09 56.08 61.10
HE Alls kW 15.87 18.34 21.00 26.88 - - - - - -
Total power input
with HIGH PUMP (P3-P4-03-04)
HA Alls kW - - - - 30.78 36.26 43.33 50.79 56.82 61.88
HE Alls kW 16.21 18.71 21.40 27.36 - - - - - -
Cooling total input current HA Alls A- - - - 49 56 70 77 85 96
HE Alls A30 35 39 46 - - - - - -
EER HA Alls BTU/W - - - - 10.27 10.10 10.22 10.27 10.11 10.17
HE Alls BTU/W 10.41 10.61 10.49 10.28 - - - - -
IPLV HA Alls BTU/W - - - - 15.86 15.54 15.77 15.66 14.81 14.67
HE Alls BTU/W 14.32 14.43 14.40 14.21 - - - - - -
Water flow HA Alls gpm - - - - 59.45 69.26 84.09 97.56 108.0 118.6
HE Alls gpm 31.22 36.94 41.96 52.99 - - - - - -
Total pressure drops HA Alls ftHO - - - - 7.03 8.36 12.0 15.1 18.7 20.4
HE Alls ftHO 4.35 6.02 5.69 6.69 - - - - - -
Useful head
with LOW - PUMP (P1-P2-01-02)
HA Alls ftHO - - - - 42.77 39.08 30.28 50.14 44.41 39.86
HE Alls ftHO 49.09 46.42 45.94 42.15 - - - - - -
Useful head
with HIGH - PUMP (P3-P4-03-04)
HA Alls ftHO - - - - 66.31 62.78 54.29 71.46 66.10 61.97
HE Alls ftHO 71.15 68.74 68.52 65.33 - - - - - -
Heating mode
Heating capacity HA Alls BTU/h - - - - 310,800 358,600 430,900 482,000 549,900 600,600
HE Alls BTU/h 166,000 196,700 220,600 267,300 - - - - - -
Total power input HA Alls kW - - - - 31.48 37.69 44.70 51.04 58.10 61.35
HE Alls kW 16.08 19.08 21.39 28.45 - - - - - -
Total power input
with LOW PUMP (P1-P2-01-02)
HA Alls kW - - - - 32.83 39.13 46.24 53.56 60.73 64.06
HE Alls kW 16.96 20.03 22.39 29.54 - - - - - -
Total power input
with HIGH PUMP (P3-P4-03-04)
HA Alls kW - - - - 33.36 39.70 46.87 54.29 61.52 64.90
HE Alls kW 17.34 20.45 22.84 30.06 - - - - - -
Heating total input current HA Alls A - - - - 46 56 66 76 80 87
HE Alls A 22 31 29 45 - - - - - -
COP HA Alls kW/kW - - - - 2.893 2.788 2.825 2.768 2.774 2.869
HE Alls kW/kW 3.025 3.021 3.022 2.754 - - - - - -
Water flow HA Alls gpm - - - - 69.70 80.42 96.63 108.1 123.3 134.7
HE Alls gpm 37.22 44.12 49.46 59.95 - - - - - -
Total pressure drops HA Alls ftHO - - - - 9.66 11.3 15.9 18.5 24.4 26.3
HE Alls ftHO 6.18 8.59 7.90 8.56 - - - - - -
Useful head
with LOW - PUMP (P1-P2-01-02)
HA Alls ftHO - - - - 37.46 32.56 21.01 44.50 34.87 29.28
HE Alls ftHO 46.25 42.37 42.03 38.20 - - - - - -
Useful head
with HIGH - PUMP (P3-P4-03-04)
HA Alls ftHO - - - - 61.17 56.49 45.29 66.20 57.18 52.08
HE Alls ftHO 68.59 65.05 65.01 61.79 - - - - - -
PROTECTION RATING
IP Alls - 24 24 24 24 24 24 24 24 24 24
NRL ONLY COOLING WITH DESUPERHEATER
Heating power recovered HDE-HDA Alls BTU/h 54,940 64,830 73,700 93,150 104,400 121,500 147,700 171,300 189,400 208,100
Water flow HDE-HDA Alls gpm 12.34 14.56 16.56 20.93 23.46 27.29 33.20 38.49 42.55 46.77
Pressure drop HDE-HDA Alls ftHO 2.33 3.00 4.00 4.67 5.67 7.66 11.3 12.3 15.0 18.0
Q.ty HDE-HDA Alls nr. 2 2 2 2 2 2 2 2 2 2
Defrost electric heater HDE-HDA Alls nr. / W 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40 2 / 40
Water content HDE-HDA Alls l 0.7 / 0.7 0.7 / 0.7 0.7 / 0.7 1.1 / 1.1 1.1 / 1.1 1.1 / 1.1 1.1 / 1.1 1.5 / 1.5 1.5 / 1.5 1.5 / 1.5
Water connections HDE-HDA Alls inch 1" 1/2 1" 1/2 1" 1/2 1" 1/2 1" 1/2 1" 1/2 1" 1/2 1" 1/2 1" 1/2 1" 1/2

18
NRL 028-075 60Hz
EN
028 030 033 035 050 055 060 065 070 075
Alimentation 230V60Hz
MODELS WITHOUT PUMP
LRA HA - - - - 372 392 377 447 465 527
HE 227 278 288 358 - - - - - -
MCA HA - - - - 150 150 175 225 250 300
HE 70 80 90 125 - - - - - -
MOP HA - - - - 175 175 175 250 250 300
HE 90 110 110 175 - - - - - -
MODELS WITH LOW PUMP

LRA HA - - - - 378 397 382 458 476 538
HE 232 282 292 362 - - - - - -
MCA HA - - - - 150 150 175 225 250 300
HE 75 90 90 150 - - - - - -
MOP HA - - - - 175 200 200 250 300 300
HE 100 110 110 175 - - - - - -
MODELS WITH HIGH PUMP

LRA HA - - - - 380 400 385 460 478 541
HE 235 286 296 366 - - - - - -
MCA HA - - - - 150 175 175 225 300 300
HE 80 90 100 150 - - - - - -
MOP HA - - - - 175 200 200 250 300 300
HE 100 110 125 175 - - - - - -
Alimentation 460/3/60Hz
MODELS WITHOUT PUMP
LRA HA - - - - 186 195 191 220 228 268
HE 124 154 158 187 - - - - - -
MCA HA - - - - 70 75 90 100 110 125
HE 40 60 60 70 - - - - - -
MOP HA - - - - 80 90 100 110 125 125
HE 50 60 70 80 - - - - - -
MODELS WITH LOW PUMP

LRA HA - - - - 188 197 194 226 234 274
HE 126 156 160 190 - - - - - -
MCA HA - - - - 70 80 100 110 125 150
HE 45 60 60 70 - - - - - -
MOP HA - - - - 80 90 110 125 125 150
HE 50 70 70 90 - - - - - -
MODELS WITH HIGH PUMP

LRA HA - - - - 190 199 195 227 235 275
HE 128 158 162 191 - - - - - -
MCA HA - - - - 70 80 100 110 125 150
HE 45 60 60 70 - - - - - -
MOP HA - - - - 80 90 110 125 125 150
HE 50 70 75 90 - - - - - -
Alimentation 575/3/60Hz
MODELS WITHOUT PUMP
LRA HA - - - - 137 144 132 164 171 203
HE 97 103 106 138 - - - - - -
MCA HA - - - - 60 60 70 90 100 110
HE 30 40 45 60 - - - - - -
MOP HA - - - - 70 75 75 100 110 125
HE 40 50 50 75 - - - - - -
MODELS WITH LOW PUMP

LRA HA - - - - 140 146 134 169 175 207
HE 98 104 108 140 - - - - - -
MCA HA - - - - 60 60 70 90 100 125
HE 35 40 45 60 - - - - - -
MOP HA - - - - 70 80 80 100 110 125
HE 40 50 50 75 - - - - - -
MODELS WITH HIGH PUMP

LRA HA - - - - 141 147 135 170 176 208
HE 100 106 109 141 - - - - - -
MCA HA - - - - 60 70 70 90 110 125
HE 35 45 45 60 - - - - - -
MOP HA - - - - 75 80 80 100 110 125
HE 40 50 50 80 - - - - - -
8.1. ELECTRICAL DATA MODELS WITHOUT PUMP + "°" ON/OFF FAN
LRA: Peak current
MCA: Minimum circuit amperage
MOP: Maximum overcurrent permitted by the protection device

19
NRL 028-075 60Hz
EN
028 030 033 035 050 055 060 065 070 075
Alimentation 208V60Hz
MODELS WITHOUT PUMP
LRA HA - - - - 385 407 398 469 489 554
HE 243 296 307 378 - - - - - -
MCA HA - - - - 150 150 175 225 250 300
HE 90 100 100 150 - - - - - -
MOP HA - - - - 175 200 200 250 250 300
HE 100 125 125 175 - - - - - -
MODELS WITH LOW PUMP

LRA HA - - - - 391 413 404 480 500 566
HE 247 300 311 382 - - - - - -
MCA HA - - - - 150 175 175 225 300 300
HE 90 100 110 150 - - - - - -
MOP HA - - - - 175 200 200 250 300 300
HE 110 125 125 175 - - - - - -
MODELS WITH HIGH PUMP

LRA HA - - - - 393 415 406 483 503 569
HE 251 304 315 386
MCA HA - - - - 150 175 200 225 300 300
HE 90 110 110 150 - - - - - -
MOP HA - - - - 175 200 200 250 300 300
HE 110 125 125 175 - - - - - -
Alimentation 230V60Hz
MODELS WITHOUT PUMP
LRA HA - - - - 374 394 380 450 468 531
HE 234 286 296 366 - - - - - -
MCA HA - - - - 150 150 175 225 250 300
HE 75 90 100 150 - - - - - -
MOP HA - - - - 175 175 175 250 250 300
HE 100 110 125 175 - - - - - -
MODELS WITH LOW PUMP

LRA HA - - - - 380 399 385 461 479 542
HE 238 290 300 370 - - - - - -
MCA HA - - - - 150 175 175 225 300 300
HE 80 100 100 150 - - - - - -
MOP HA - - - - 175 200 200 250 300 300
HE 100 110 125 175 - - - - - -
MODELS WITH HIGH PUMP

LRA HA - - - - 382 402 388 463 481 545
HE 242 294 304 374 - - - - - -
MCA HA - - - - 150 175 175 225 300 300
HE 90 100 110 150 - - - - - -
MOP HA - - - - 175 200 200 250 300 300
HE 110 125 125 175 - - - - - -
Alimentation 460/3/60Hz
MODELS WITHOUT PUMP
LRA HA - - - - 186 195 192 221 229 269
HE 127 158 163 192 - - - - - -
MCA HA - - - - 70 75 90 100 110 125
HE 45 60 60 70 - - - - - -
MOP HA - - - - 80 90 100 110 125 125
HE 50 70 75 90 - - - - - -
MODELS WITH LOW PUMP

LRA HA - - - - 189 198 194 226 234 274
HE 129 160 165 194 - - - - - -
MCA HA - - - - 70 80 100 110 125 150
HE 45 60 70 75 - - - - - -
MOP HA - - - - 80 90 110 125 125 150
HE 50 75 80 90 - - - - - -
MODELS WITH HIGH PUMP

LRA HA - - - - 190 199 196 227 235 276
HE 131 162 167 196 - - - - - -
MCA HA - - - - 70 80 100 110 125 150
HE 50 60 70 75 - - - - - -
MOP HA - - - - 80 100 110 125 125 150
HE 50 75 80 90 - - - - - -
Alimentation 575/3/60Hz
MODELS WITHOUT PUMP
LRA HA - - - - 137 144 132 164 170 202
HE 99 106 109 142 - - - - - -
MCA HA - - - - 60 60 70 90 100 110
HE 35 45 45 60 - - - - - -
MOP HA - - - - 70 75 75 100 110 125
HE 40 50 50 80 - - - - - -
MODELS WITH LOW PUMP

LRA HA - - - - 139 146 134 168 174 206
HE 101 108 111 143 - - - - - -
MCA HA - - - - 60 60 70 90 100 125
HE 35 45 50 70 - - - - - -
MOP HA - - - - 70 80 80 100 110 125
HE 40 50 50 80 - - - - - -
MODELS WITH HIGH PUMP

LRA HA - - - - 140 147 135 169 175 207
HE 102 109 113 145 - - - - - -
MCA HA - - - - 60 70 70 90 100 125
HE 40 45 50 70 - - - - - -
MOP HA - - - - 70 80 80 100 110 125
HE 45 50 60 80 - - - - - -
8.2. ELECTRICAL DATA MODELS WITHOUT PUMP + "I" EC INVERTER FAN

20
NRL 028-075 60Hz
EN
Models 028 030 033 035 050 055 060 065 070 075
SCROLL COMPRESSOR
Quantity / circuits n°/n° 2/2 2/2 2/2 2/2 3/2 3/2 4/2 4/2 4/2 4/2
SYSTEM SIDE EXCHANGER
Exchanger capacity HA-HE gal 1,7 1,7 2,2 2,9 3,4 4,1 4,1 4,8 4,8 4,4
Hydraulic connection (victaulic) Ø 2”1/2 2”1/2 2”1/2 2”1/2 2”1/2 2”1/2 2”1/2 2”1/2 2”1/2 3”

STORAGE TANK
Storage tank All l 300 300 300 300 500 500 TO BE DEFINED
EXPANSION VASSEL
Expansion vassel All n°/gal 1 / 6.60 1 / 6.60 1 / 6.60 1 / 6.60 1 / 6.60 1 / 6.60 1 / 6.60 1 / 6.60 1 / 6.60 1 / 6.60
Expansion vassel calibration All p.s.i. 21 21 21 21 21 21 21 21 21 21
SAFETY VALVE
Safety valve All n°/p.s.i. 1/87 1/87 1/87 1/87 1/87 1/87 1/87 1/87 1/87 1/87
STANDARD AXIAL FAN
Quantity n° 6 8 8 8 2 2 3 3 3 4
Air flow cfm 14632 19352 19352 18762 25016 25016 37760 37760 37760 51330
Input current
HA 230V A
6,96 9,28 9,28 9,28
13,0 13,0 19,5 19,5 19,5 26,0
HE 460V A 7,6 7,6 11,4 11,4 11,4 15,2
575V A 6,64 6,64 9,96 9,96 9,96 13,28
Input power 230V|460V kW 1,56 2,08 2,08 2,08 4,0 4,0 6,0 6,0 6,0 8,0
575V kW 1,56 2,08 2,08 2,08 4,36 4,36 6,54 6,54 6,54 8,72
SOUND DATA
COOLING FUNCTIONING
Sound pressure HA dB(A) - - - - 51 52 53 54 54 54
HE dB(A) 42 43 45 46 - - - - - -
Sound power HA dB(A) - - - - 83 84 85 86 86 86
HE dB(A) 74 75 77 78 - - - - - -
HEATING FUNCTIONING
Sound pressure ALL dB(A) 42 44 45 46 51 52 53 54 54 55
Sound power ALL dB(A) 74 76 77 78 83 84 85 86 86 87

Refrigerant R410A
HA C1 kg
lb
12,1
26,68
15,0
33,7
15,0
33,7
17,5
38,58
17,0
38,48
17,5
34,14
26,0
57,32
26,0
57,32
26,0
57,32
44,0
97
HE C2 kg
lb
12,1
26,68
15,0
33,7
15,0
33,7
17,5
38,58
15,5
34,17
15,5
34,17
26,0
57,32
26,0
57,32
26,0
57,32
44,0
97
Oil
HA
HE C1 kg
lb
1,8
3,96
3,4
7,49
3,4
7,49
3,4
7,49
3,6
7,93
6,8
8,37
6,8
8,37
6,8
8,37
6,8
8,37
6,8
8,37
HA
HE C2 Kg
lb
1,8
3,96
1,8
3,96
3,4
7,49
3,4
7,49
3,4
7,49
3,4
7,49
6,8
8,37
6,8
8,37
6,8
8,37
6,8
8,37

Height HA-HE - in 63 63 63 63 74 74 74 74 74 78
Width HA-HE - in 43 43 43 43 43 43 43 43 43 59
Depth HA-HE - in 97 116 116 116 119 119 158 158 158 171
Weight HA-HE - Kg
lb
721
1590
801
1766
805
1775
884
1949
988
2180
1006
2220
1299
2866
1359
2998
1329
2932
2060
4542
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 certification.
Sound pressure:
Sound pressure in free field, at 10 m distance from the
external surface of the unit (in accordance with UNI EN
ISO 3744)