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T r a n s l a t i o n o f O r i g i n a l i n s t r u c t i o n s
NLC 0280H-1250H
Installation Manual
REVERSIBLE AIR/WATER HEAT PUMP
C o o l i n g c a p a c i t y 1 4 . 1 ÷ 8 4 . 5 t o n
H e a t i n g c a p a c i t y 1 6 3 , 8 7 5 ÷ 9 7 3 , 9 5 5 B T U / h
w w w . a e r m e c . c o m
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- Page 1 2 2 . 0 5 – 4 0 3 7 3 6 5 _ 0 3 T r a n s l a t i o n o f O r i g i n a l i n s t r u c t i o n s NLC 0280H-1250H Installation Manual REVERSIBLE AIR/WATER HEAT PUMP C o o l i n g c a p a c i t y 1 4 .
- Page 3 Dear Customer, Thank you for wanting to learn about a product Aermec. 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. The manual you are about to read is meant to present the product and help you select the unit that best meets the needs of your system.
- Page 4 All specifications are subject to change without prior notice. Although every effort has been made to ensure accuracy, Aermec shall not be held liable for any errors or...
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Page 5: Table Of Contents
TABLE OF CONTENTS 1. General warnings ..............p. 7 11. Weights ..................p. 36 Introduction .....................p. 7 12. Dimensional tables ..............p. 37 General warnings ...................p. 7 0280-0300-0330-0350 - 00 ............... p. 37 Essential safety rules ................p. 7 0550-0600-0650-0675 - 00 ............... p. 38 Precautions concerning the hydraulic circuit ......p. 8 0550-0600-0650-0675 - P1-P2-P3-P4 ........... - Page 6 23. Accessories ................p. 58 Factory fitted accessories ..............p. 58 Accessories compatibility ..............p. 58 22.05 – 4037365_03...
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Page 7: General Warnings
— The product is intended to be used for the purpose indicated by Aermec and for which it was expressly designed. Aermec shall not be contractually or non-con-... -
Page 8: Precautions Concerning The Hydraulic Circuit
(even — Keep all lubricants in properly marked containers. Do not keep flammable liq- though the circuit is tested before leaving the Aermec factory); uids near the plant; — Do not bend or strike pipes containing pressurised fluids. Do not exceed the maximum permissible pressure (PS) of the unit's water circuit;... -
Page 9: Selection Criteria Of The Heat Exchangers According To The Place Of Installation Of The Unit
SELECTION CRITERIA OF THE HEAT EXCHANGERS ACCORDING TO THE PLACE OF INSTALLATION OF THE UNIT The guide provides advice for applications. Although recommendations ing ship engine exhaust, industrial production, chemical treatment facilities (cool- are given, all the details about the real world application of our prod- ing towers in the vicinity) and fossil fuel power plants. -
Page 10: General Description
GENERAL DESCRIPTION Chiller offering chilled/hot water, designed to mit air conditioning needs in residen- tial / commercial complexes or industrial applications. Indoor units with Scroll compressors, centrifugal fans and plate heat exchangers. In order to correctly install the unit, observe all the instructions provid- ed in this manual, all the laws and regulations in force (EN 378, national and local standards) and in any case an additional risk analysis must be carried out by the system designer. -
Page 11: Operating Limits
OPERATING LIMITS In their standard configuration, the units are not suitable for installation in salty environments. The values indicated in the table refer to the min. and max. limits of the unit, valid for ΔT = 10.1 DT °F (cooling mode) and ∆T = 9.0 DT °F (heating mode). If the unit operates beyond the operational limits, we recommend you first contact our technical-sales service. - Page 12 Operating range at the maximum high static pressure (400 Pa) (in cooling mode) 0280-0550-0600-0750-0800-0900-1000 °F 120.0 114.8 105.5 100.0 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F Water produced temperature (°F) External air temperature (°F) 0300-0330-0650-1100-1250 °F 120.0 107.5...
- Page 13 0350-0675 °F 120.0 105.7 100.0 96.4 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F Water produced temperature (°F) External air temperature (°F) Operating heating mode range 0280-0300-0330-0350-0550-0600-0750-0800-0900-1000 °F 140.0 131.0 120.0 95.0 77.0 60.0 40.0 20.0 0.0 5.0 20.0 32.0...
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Page 14: Power Supply 230V
0650-0675-1100-1250 °F 140.0 131.0 122.0 95.0 77.0 60.0 40.0 20.0 0.0 5.0 20.0 32.0 42.8 60.0 80.0 100.0 107.6 120.0 °F External air temperature (°F) Water produced temperature (°F) POWER SUPPLY 230V Operating range at the maximum outside air temperature (in cooling mode) 0280-0300-0330-0550-0600-0650-0750-0800-0900-1000-1100 °F 120.0... - Page 15 0675-1250 °F 120.0 113.0 103.7 100.0 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F Water produced temperature (°F) External air temperature (°F) 0350 °F 120.0 111.2 101.9 100.0 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0...
- Page 16 Operating range at the maximum high static pressure (400 Pa) (in cooling mode) 0280-0550-0750-0800 °F 120.0 114.8 105.5 100.0 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F Water produced temperature (°F) External air temperature (°F) 0300-0330-0600-0650-0900-1000-1100 °F 120.0 107.5...
- Page 17 0675-1250 °F 120.0 105.7 100.0 96.4 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F Water produced temperature (°F) External air temperature (°F) 0350 °F 120.0 103.9 94.6 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F...
- Page 18 Operating heating mode range 0280-0300-0330-0350-0550-0600-0750-0800-0900-1000 °F 140.0 131.0 120.0 95.0 77.0 60.0 40.0 20.0 0.0 5.0 20.0 32.0 40.0 60.0 80.0 100.0 107.6 120.0 °F External air temperature (°F) Water produced temperature (°F) 0650-0675-1100-1250 °F 140.0 127.4 122.0 95.0 77.0 60.0 40.0 20.0...
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Page 19: Power Supply 208V
POWER SUPPLY 208V Operating range at the maximum outside air temperature (in cooling mode) 0280-0300-0330-0550-0600-0750-0800-0900-1000 °F 120.0 114.8 105.5 100.0 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F Water produced temperature (°F) External air temperature (°F) 0350 °F 120.0... - Page 20 0650-1100 °F 120.0 107.6 100.0 98.3 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F Water produced temperature (°F) External air temperature (°F) 0675-1250 °F 120.0 104.0 94.7 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F...
- Page 21 Operating range at the maximum high static pressure (400 Pa) (in cooling mode) 0280-0550-0750-0800 °F 120.0 114.8 105.5 100.0 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F Water produced temperature (°F) External air temperature (°F) 0300-0330-0600-0900-1000 °F 120.0 107.5...
- Page 22 0350 °F 120.0 103.9 94.6 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F Water produced temperature (°F) External air temperature (°F) 0650-1100 °F 120.0 100.3 91.0 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F Water produced temperature (°F)
- Page 23 0675-1250 °F 120.0 96.7 87.4 80.0 60.0 40.0 14.0 44.0 64.4 30.0 39.2 50.0 60.0 70.0 °F Water produced temperature (°F) External air temperature (°F) Operating heating mode range 0280-0300-0330-0350-0550-0600-0750-0800-0900-1000 °F 140.0 131.0 120.0 95.0 77.0 60.0 40.0 20.0 0.0 5.0 20.0 32.0 40.0...
- Page 24 0650-0675-1100-1250 °F 140.0 127.4 122.0 95.0 77.0 60.0 40.0 20.0 0.0 5.0 20.0 32.0 42.8 60.0 80.0 100.0 107.6 120.0 °F External air temperature (°F) Water produced temperature (°F) 22.05 – 4037365_03...
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Page 25: Refrigerant Circuit
REFRIGERANT CIRCUIT NLC H 0280-0675 A Cooling mode Fan Plug-fan Liquid separator Pressure relief valve Low pressure transducer Compressor Discharge temperature sensor High pressure switch High pressure transducer Reversing valve Finned coil Isolation valve One-way valve Filter drier Solenoid valve Sight glass Solenoid by-pass valve Mechanic thermostatic valve... -
Page 26: Nlc H 0750-1250 A
NLC H 0750-1250 A Cooling mode Fan Plug-fan Mechanic thermostatic valve Reversing valve One-way valve Pressure relief valve Finned coil Filter drier Low pressure transducer Isolation valve Solenoid valve Compressor Liquid separator Liquid receiver with indicator light Discharge temperature sensor Plate heat exchanger Sight glass High pressure switch... -
Page 27: Installation
— A hoist or a crane; — A forklift. Product identification Aermec products are identifiable by the packaging label that shows the product LIFTING WITH A HOIST OR CRANE identification data, and by the rating plate that shows the performance and iden- tification technical data of the unit in your possession. -
Page 28: Handling With A Forklift
The anti-vibration sup- refrigerant leaks through the pressure relief valves. ports must be fixed to the unit BEFORE being earthed. AERMEC is not responsi- ble for selecting the capacity of the anti-vibration supports;... -
Page 29: Nlc Unit Operation
NLC UNIT OPERATION The chillers and the heat pumps of the NLC range are air-cooled machines suitable for installing indoors. For this reason the air that crosses the coil needs to be expelled from the utility room using suitable piping connected to the machine itself. The presence of the piping involves pressure drops that will need to be overcome by the fan;... - Page 30 WARNING The weight of the piping must not be borne by the appliance Example of ductwork 22.05 – 4037365_03...
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Page 31: Minimum Technical Spaces
MINIMUM TECHNICAL SPACES With regards to all units, it is essential to respect the minimum distances to avoid: — The generation of hazardous atmospheres in the case of refrigerant gas leaks; The place where the unit is installed must be accessible and permitted only to authorised personnel. It is important that the units are installed flat. -
Page 32: Position Of The Vibration Dampers
POSITION OF THE VIBRATION DAMPERS NLC 0280-0350 HA Top view Vers. 00 Vers. P1-P4 Vers. 01-04 NLC 0550-0675 HA Top view Vers. 00 / P1-P4 Vers. 01-04 22.05 – 4037365_03... -
Page 33: Weight Distribution And Centres Of Gravity
NLC 0750-1250 HA Top view Vers. 00 / P1-P4 Vers. 01-04 10 WEIGHT DISTRIBUTION AND CENTRES OF GRAVITY WEIGHT DISTRIBUTION AND CENTRES OF GRAVITY WHEN EMPTY Size 0280 0300 0330 0350 0550 0600 0650 0675 0750 0800 0900 1000 1100 1250 INTEGRATED HYDRONIC KIT: 00 Centre of gravity (empty) -
Page 34: Weight Distribution And Centres Of Gravity During Operation
Size 0280 0300 0330 0350 0550 0600 0650 0675 0750 0800 0900 1000 1100 1250 INTEGRATED HYDRONIC KIT: P1, P3 Centre of gravity (empty) 43.0 42.0 41.8 41.7 58.9 56.3 56.2 55.0 118.7 118.0 120.1 116.1 117.2 116.0 16.7 16.4 16.8 16.7 20.4... -
Page 35: Antivibration
Size 0280 0300 0330 0350 0550 0600 0650 0675 0750 0800 0900 1000 1100 1250 INTEGRATED HYDRONIC KIT: P1, P3 Centre of gravity (during operation) 43.9 42.9 42.6 42.5 57.4 55.0 55.0 53.9 120.2 119.5 121.5 117.6 118.7 117.4 16.6 16.3 16.7 16.6... -
Page 36: Weights
11 WEIGHTS Size 0280 0300 0330 0350 0550 0600 0650 0675 0750 0800 0900 1000 1100 1250 INTEGRATED HYDRONIC KIT: 00 Weights Empty weight 1,737 1,845 1,896 1,911 3,069 3,369 3,492 3,598 5,465 5,666 5,983 6,281 6,517 6,724 Weight functioning 1,750 1,863 1,911... -
Page 37: Dimensional Tables
12 DIMENSIONAL TABLES 0280-0300-0330-0350 - 00 Data expressed in inches (") 15.8 37.4 15.8 69.0 11.8 40.2 15.8 37.4 15.8 43.3 69.0 26.7 26.6 26.7 26.6 Condensate discharge Size 0280 0300 0330 0350 INTEGRATED HYDRONIC KIT: 00, 01, 02, 03, 04, P1, P2, P3, P4 Dimensions and weights for transport Contact the Contact the... - Page 38 0550-0600-0650-0675 - 00 Data expressed in inches (") 15.8 92.6 15.8 44.2 43.3 Power supply 124.1 43.3 26.7 26.7 26.7 26.7 26.7 26.7 26.7 26.7 30.0 30.2 Size 0550 0600 0650 0675 INTEGRATED HYDRONIC KIT: 00, 01, 02, 03, 04, P1, P2, P3, P4 Dimensions and weights for transport 93.4 93.4...
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Page 39: 0550-0600-0650-0675 - P1-P2-P3-P4
0550-0600-0650-0675 - P1-P2-P3-P4 Data expressed in inches (") 15.8 92.6 15.8 44.2 43.3 Power supply 43.3 124.1 26.7 26.7 26.7 26.7 Size 0550 0600 0650 0675 INTEGRATED HYDRONIC KIT: 00, 01, 02, 03, 04, P1, P2, P3, P4 Dimensions and weights for transport 93.4 93.4 93.4... - Page 40 0550-0600-0650-0675 - 01-02-03-04 Data expressed in inches (") 15.8 92.6 31.5 23.6 124.1 44.2 43.3 40.2 15.8 92.6 31.5 23.6 163.5 26.7 26.7 26.7 26.7 42.8 124.1 26.7 26.7 26.7 26.7 Size 0550 0600 0650 0675 INTEGRATED HYDRONIC KIT: 00, 01, 02, 03, 04, P1, P2, P3, P4 Dimensions and weights for transport 93.4 93.4...
- Page 41 0750-0800-0900-1000-1100-1250 - 00 Data expressed in inches (") 15.8 92.6 31.5 92.6 15.8 248.2 40.2 15.8 92.6 31.5 92.6 15.8 248.2 26.7 26.7 26.7 26.7 26.7 26.7 26.7 26.7 26.7 26.7 26.7 26.7 26.7 26.7 26.7 26.7 56.5 56.5 56.5 56.5 Size...
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Page 42: Hydraulic Connections
13 HYDRAULIC CONNECTIONS 0280-0300-0330-0350 - 00 13.1 Evaporator grooved joints- Ø 2" COMPONENTS SUPPLIED FOR SIZES 0550-0600-0650-0675 (00 / P1-P2-P3-P4 / 01-02-03-04) Grooved joint EU Grooved joint US Grooved nipple US Reduction / adapter EU > US 22.05 – 4037365_03... -
Page 43: 0550-0600-0650-0675 - P1-P2-P3-P4
0550-0600-0650-0675 - 00 0550-0600-0650-0675 - 01-02-03-04 11.9 11.9 Evaporator Evaporator grooved joints - Ø 2” 1/2 EU grooved joints- Ø 2" 1/2 EU 0750-0800-0900-1000-1100-1250 - 00 0550-0600-0650-0675 - P1-P2-P3-P4 11.9 Evaporator grooved joints - Ø 3” Pump grooved joints- Ø 2" 1/2 EU Evaporator grooved joints- Ø... -
Page 44: Hydraulic Connections
Aermec shall not be liable for any damage deriving from the use of "hard" water that is not treated or that was improperly treated. WARNING! The hydraulic connection pipes to the unit must be suit-... -
Page 45: Anti-Freeze Protection
vironments. To permit the circuit to drain, make sure that the drain valves have been installed in the lowest points of the circuit and that they are open. ANTI-FREEZE PROTECTION The addition of glycol is the only effective protection against freezing; the glycol/ water solution must be sufficiently concentrated to ensure proper protection and prevent ice forming at minimum temperature provided for a given installation. -
Page 46: System Water Content
If you are in any doubt, please refer to the relevant technical documentation or contact the AERMEC Technical-Commercial Service. ATTENTION It is recommended to design systems with high water content (minimum recommended values shown in tab), in order to limit: —... -
Page 47: Expansion Vessel Setting
EXPANSION VESSEL SETTING The expansion tank volume is 6.3 gal. The standard value of the expansion tank pre-charge pressure is 21.8 psi, but this can be calibrated up to a maximum of 87.0 psi. The expansion tank pressure setting has to be adjusted based on the difference in height (H) of the installation (see figure) according to the formula: p (rating) [bar] = H [ft] / 33.5 + 1.0. -
Page 48: Main Hydraulic Circuits
16 MAIN HYDRAULIC CIRCUITS NLC H 0280-1250 (00) Water filter: Installation in the immediate vicinity of the heat exchanger is man- datory,. Components as standard Water filter (MANDATORY) Plate heat exchanger Anti-vibration joints Water temperature sensors (IN/OUT) Pressure gauge Air drain valve (from size 0550 to 0675 A ONLY) Flow switch (MANDATORY) Drainage tap (from size 0550 to 0675 A ONLY) -
Page 49: Nlc H 0280-1250 (P1-P2-P3-P4)
NLC H 0280-1250 (P1-P2-P3-P4) Water filter: Installation in the immediate vicinity of the heat exchanger is man- datory,. P2-P4 P1-P3 Components as standard Air drain valve Plate heat exchanger Pressure relief valve Water temperature sensors (IN/OUT) Expansion vessel Air drain valve Storage tank Pressure relief valve Water filter (MANDATORY) -
Page 50: Nlc H 0280-1250 (01-02-03-04)
NLC H 0280-1250 (01-02-03-04) Water filter: Installation in the immediate vicinity of the heat exchanger is man- datory,. P2-P4 P1-P3 Components as standard Storage tank Plate heat exchanger Drain valve Water temperature sensors (IN/OUT) Components not provided and responsibility of the installer Air drain valve Water filter (MANDATORY) Pressure relief valve... -
Page 51: Electrical Wiring
17 ELECTRICAL WIRING For the installation requirements refer only to the wiring diagram — The voltage must be within a tolerance of ± 10% of the nominal power supply supplied with the unit. The wiring diagram along with the manuals voltage of the machine (for unbalanced three-phase unit max 3% between the must be kept in good condition and always available for any future phases). -
Page 52: Electric Power Connection To Te Electrical Mains
18 ELECTRIC POWER CONNECTION TO TE ELECTRICAL MAINS Avoid direct contact with non-insulated copper piping and with the — Identify the clamps for the electric connection and always refer exclusively to compressor. the wiring diagram supplied with the unit; — Remove any protections from the cable fixing points; —... -
Page 53: Commisioning - Warnings
19 COMMISIONING - WARNINGS START-UP Check that the circulation pump(s) are working, and that the wa- ter flow rate is sufficient to close the flow switch contact if installed, . We recommend installing one always upstream of every heat exchanger. Operations to be performed with no voltage present —... -
Page 54: Maintenance
20 MAINTENANCE Any cleaning, inspection, control or routine or extraordinary main- — If the unit has components such as integrated inverters, disconnect the power tenance intervention: must be carried out by expert technical personnel supply and wait at least 15 minutes before accessing it for maintenance opera- who are authorised and qualified to perform the activities indicated above. -
Page 55: Routine And Extraordinary Maintenance
— It is not permitted to change the refrigerant, hydraulic or electric layout of the — The refrigerant gas must be fully collected by specialised personnel with the unit, or its control logic unless expressly authorised by Aermec; necessary qualifications in specific containers and be delivered to collection —... -
Page 56: List Of The Recommended Periodic Interventions
21 LIST OF THE RECOMMENDED PERIODIC INTERVENTIONS GENERAL INTERVENTIONS DESCRIPTION FREQUENCY Note 3 Mths 6 Mths 12 Mths GENERAL INTERVENTIONS Refrigerant leak control (this operation must be performed with the frequency suggested by current European regulations) • • Unit supply voltage control Compressor supply voltage control •... -
Page 57: Configurator
22 CONFIGURATOR Field Description 1,2,3 Size 4,5,6,7 0280, 0300, 0330, 0350, 0550, 0600, 0650, 0675, 0750, 0800, 0900, 1000, 1100, 1250 Operating field (1) ° Standard mechanic thermostatic valve X Electronic thermostatic expansion valve Model H Heat pump Heat recovery °... - Page 58 23 ACCESSORIES AER485P1: RS-485 interface for supervision systems with MODBUS protocol. FLG: Flange for ducts. AERBACP: Ethernet communication Interface for protocols Bacnet/IP, Modbus TCP/ CRATE: Special crate for transport FILW: Water filter IP, SNMP AERNET: The device allows the control, the management and the remote monitor- ing of a Chiller with a PC, smartphone or tablet using Cloud connection.
- Page 59 FILTROW 0280 0300 0330 0350 0550 0600 0650 FILTRO W DN50 (1) FILTRO W DN50 (1) FILTRO W DN50 (1) FILTRO W DN50 (1) FILTRO W DN65 (1) FILTRO W DN65 (1) FILTRO W DN65 (1) (1) Installation is mandatory, contrarily garantee becomes void. 0675 0750 0800...
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