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Related Manuals for United Technologies Carrier 38NZ
Summary of Contents for United Technologies Carrier 38NZ
- Page 1 INSTALLATION, OPERATION AND M A I N T E N A N C E I N S T R U C T I O N S Split-system units 38NZ/NF Nominal cooling capacity 19,7 - 112,9 kW Nominal heating capacity 21,9 - 119,8 kW 50 Hz Translation of the original document 80126, 01.2016...
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Page 2: Table Of Contents
Split-system cooling units and heat pumps Contents 1. Introduction ........................................3 2. Range ..........................................3 3. Operating limits .........................................3 4. Available assemblies ......................................4 5. Unit identifi cation .......................................5 6. Technical characteristics: 38NZ/NF - 40SZ/SF ..............................6 7. Technical characteristics: 38NZ/NF - 40NZ/NF ..............................7 8. -
Page 3: Introduction
Split-system cooling units and heat pumps Outdoor unit: 38NZ/NF Indoor unit: 40SZ/SF Indoor unit: 40NZ/NF 1. I NTRODUCTION The 38NZ/NF cooling units and heat pumps are units which feature a The units comply with standards: EN 60-204 - EN 378-2, and directives: split-system construction with components optimised for the R-410A Machinery 2006/42/EC - EMC 2004/108/EC - LVD 2006/95/EC - PED refrigerant. -
Page 4: Available Assemblies
Split-system cooling units and heat pumps 4. A VAILABLE ASSEMBLIES Both indoor units 40SZ/SF and 40NZ/NF can be coupled with mixing box which allow the management of free-cooling, air renewal and active recovery circuit. Available assemblies are: 40SZ/SF - 90 to 360: assemblies with mixing box (plan view) Mwxyz Air circulation Designation... -
Page 5: Unit Identification
Split-system cooling units and heat pumps 40NZ/NF - 90 to 360: assemblies with mixing box, MFHA horizontal module - 2 motorised dampers: MFHA module (plan view) • Outdoor air intake with damper, interlocked with return damper. MS304 MS403 R Return N = New air intake Air inlet Air outlet... -
Page 6: Technical Characteristics: 38Nz/Nf - 40Sz/Sf
Split-system cooling units and heat pumps 6. T : 38NZ/NF - 40SZ/SF ECHNICAL CHARACTERISTICS 38NZ/NF 19,7 23,2 26,7 36,4 38,9 47,0 52,9 63,8 71,8 79,8 101,0 112,9 Cooling capacity (kW) Cooling Power input (kW) 10,3 13,4 14,9 18,9 20,7 23,7 26,1 30,3... -
Page 7: Technical Characteristics: 38Nz/Nf - 40Nz/Nf
Split-system cooling units and heat pumps 7. T : 38NZ/NF - 40NZ/NF ECHNICAL CHARACTERISTICS 38NZ/NF 19,6 23,2 26,7 36,4 38,9 47,0 52,9 63,8 71,8 79,8 Cooling capacity (kW) Cooling Power input (kW) 10,7 13,9 15,1 19,5 21,4 24,3 27,3 31,5 ... -
Page 8: Safety Advice
Split-system cooling units and heat pumps 8. S AFETY ADVICE To avoid any risk of accident during installation, commissioning or Refrigerant leaks: maintenance, it is obligatory to take into consideration the following A periodical check must be performed for refrigerant gas leaks as specifications for the units: refrigerated circuits under pressure, per Regulation (CE) Nº517/2014 over certain greenhouse effect refrigerant presence, electrical voltage presence and implantation place. -
Page 9: Centre Of Gravity Coordinates
Split-system cooling units and heat pumps Centre of gravity coordinates The standards and recommendations of the forklift truck must also be respected with regards to the maximum load, inclination of the Both the weight and the centre of gravity should be consulted before fork carriage, elevation of the load for transport, and, in particular, the transport and handling of the unit. - Page 10 Split-system cooling units and heat pumps 40SZ/SF - 90 to 360 Centre of gravity (mm) Weight 40SZ/SF (kg) 1.048 1.048 1.048 1.384 MS module for 1.384 40SZ/SF - 90 to 360 1.384 1.346 1.346 Centre of gravity (mm) Weight MS module 40SZ/SF (kg) MC module for...
- Page 11 Split-system cooling units and heat pumps Centre of gravity (mm) Weight 40NZ/NF (kg) 40NZ/NF unit Centrifugal fan Plug-fan Centrifugal fan Plug-fan Centrifugal fan Plug-fan Centrifugal fan Plug-fan Centrifugal fan Plug-fan Centrifugal fan Plug-fan MFVA module Centrifugal fan Plug-fan Centrifugal fan 1306 Plug-fan 1306...
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Page 12: Location And Assembling
Split-system cooling units and heat pumps 10. L OCATION AND ASSEMBLING Choise of location When choosing the location, whatever may be the selected fashion, the height the snow reaches in that region. following precautions have to be taken into consideration: Installation indoors: - It is mandatory to comply with norm EN 378-3 on Safety and - Ensure that the location of the outlet and return grilles does not... -
Page 13: Anchorage For Silent-Blocks
Split-system cooling units and heat pumps Anchorage for silent-blocks 38NZ/NF - 90 to 360 38NZ/NF - 420 and 485 38NZ/NF Ø (mm) (mm) 90 and 100 1133 120 to 182 1413 2128 240 to 360 2688 420 and 485 1713 40SZ/SF - 90 to 360 40SZ/SF - 420 and 485 40SZ/SF... - Page 14 Split-system cooling units and heat pumps 40NZ/NF MFVA module MFHA module 40NZ/NF A (mm) B (mm) Ø 90 / 100 / 120 1083 1413 182 / 200 / 240 2033 280 / 320 / 360 2673 MFVA module A (mm) B (mm) Ø...
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Page 15: Minimum Free Space For Commissioning And Maintenance Operations
Split-system cooling units and heat pumps Minimum free space for commissioning and maintenance operations 38NZ/NF 38NZ/NF 90 and 100 1200 120 to 182 1500 1200 240 to 360 1500 420 and 485 1700 40SZ/SF - 90 to 360 40SZ/SF - 420 and 485 40SZ/SF 90 a 160 182 a 360... -
Page 16: Sound Level
Split-system cooling units and heat pumps Sound level These units have been designed to operate with a low sound level. In any case, in the design of the installation, it must be taken into consideration: the outdoor environment for the acoustic radiation, the type of building for the noise transmitted in the air and the solid elements for the vibration transmission. -
Page 17: Checking Before Commissioning
Split-system cooling units and heat pumps 11. C HECKING BEFORE COMMISSIONING NOTE: Under no circumstance should the unit be started without having read the brochure completely. Electrical connections Installation norms are not allowed to access parameters control and time schedule. To perform the electric installation of the unit (cable glands, conductor Note: Please refer to these control brochures to obtain more detailed section and their calculations, protections, etc.), refer to the information... - Page 18 Split-system cooling units and heat pumps Connection chart with CARRIERrtc basic (1 stage) and medium (2 stages) electronic control and indoor unit 40SZ/SF Outdoor unit 38NZ/NF Indoor unit 40SZ/SF Mixing box (optional) Indoor fan power supply Indoor fan thermal protection Outlet T probe Power supply Return or ambient T probe (opt.)
- Page 19 Split-system cooling units and heat pumps Connection chart with CARRIERrtc basic (1 stage) and medium (2 stages) electronic control and indoor unit 40NZ/NF Outdoor unit 38NZ/NF Indoor unit 40NZ/NF Indoor fan power supply Indoor fan thermal protection Outlet T probe Power supply Return or ambient T probe (opt.) Clogged filter detector (opt.)
- Page 20 Split-system cooling units and heat pumps Connection chart with CARRIERrtc electronic control (optional) and indoor unit 40SZ/SF Outdoor unit 38NZ/NF Indoor unit 40SZ/SF Mixing box (optional) Indoor fan power supply Indoor fan thermal protection Outlet T probe Power supply Return T probe pGD1 terminal Clogged filter detector (opt.) NTC ambient T probe (std) or...
- Page 21 Split-system cooling units and heat pumps Connection chart with CARRIERrtc electronic control (optional) and indoor unit 40NZ/NF Outdoor unit 38NZ/NF Indoor unit 40NZ/NF Mixing box (opt.) Indoor fan power supply Indoor fan thermal protection Outlet T probe Power supply Return T probe Return T probe pGD1 terminal Comunic.
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Page 22: Checks In The Centrifugal Fans
Split-system cooling units and heat pumps Checks in the centrifugal fans - Before commissioning, check the blade rotation direction and that - After fi xing the pulleys on the same plane, the belt tension is made the axis turns without strokes nor vibrations by tightening the tensor screw. -
Page 23: Air Ducts Connections
Split-system cooling units and heat pumps Air ducts connections Indoor unit 40SZ/SF The air supply and return ducts must be calculated in accordance with Models 90 to 360 the rated fl ow and the unit’s available pressure (refer to the technical h e s e i n d o o r u n i t s a r e characteristics table). -
Page 24: Cooling Connections
Split-system cooling units and heat pumps Siphon installation norms Outdoor unit top Maximum equivalent length of the cooling line: 50 metres All water drain tubes must be provided with a siphon to avoid bad smell For longer lenghts an oil separator must be user and water spills. -
Page 25: Safety Elements
Split-system cooling units and heat pumps Pressure drops in elbows expressed as equivalent lengths (m): material used must guarantee the air tightness at operation pressure and temperature. Tube installation norms must be - Remove the plugs that protect the cooling connections of the unit respected and inspect carefully the tube precisely at the moment of connecting the tubes. - Page 26 Split-system cooling units and heat pumps Defrost control Clogged fi lter detector (optional) This safety device is intended to eliminate ice which could accumulate in Differential pressostat for indication, through an automatic reset alarm, the outdoor coil when the unit is working in the heating cycle. Defrosting of a level of dirtiness of the fi...
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Page 27: Optional
Split-system cooling units and heat pumps 13. O PTIONAL The installation of some of these options brings in pressure drops at air level therefore this must be considered when selecting fans. The pressure drop graphs in the options, can be seen in the technical brochure. Filters (38NZ/NF) Coil protection grille (38NZ/NF) The outdoor units 38NZ/NF can include frames with gravimetric fi... -
Page 28: Mixing Box (40Sz/Sf And 40Nz/Nf)
Split-system cooling units and heat pumps Mixing box (40SZ/SF and 40NZ/NF) 40NZ/NF units with MFVA module In the 40NZ/NF unit, as well as in models 90 to 360 of the 40SZ/SF unit the mixing box is a separate module. The link between them is made The joining between the box and the unit is done via 3 M8 screws, by with the M8 screws and rivet nuts provided from factory. -
Page 29: Electrical Heaters (40Sz/Sf And 40Nz/Nf)
Split-system cooling units and heat pumps Electrical heaters (40SZ/SF and 40NZ/NF) To access the electrical heaters, the 2 screws that fasten the frame side - The auxiliary electrical heaters are ready for operation in two power panel must be unscrewed as shown in the following image: stages. - Page 30 Split-system cooling units and heat pumps Kit assembly: 40SZ/SF When the frame with the electrical heaters is provided in a kit, follow 90 / 100 648 946 145 443 60 165 482 299 217 204 320 128 476 43 the steps below for connecting it: 648 946 113 443 92 115 482 349 167 204 370 96 476 75 Step 1: lay down the frame on the panel to set the hole locations that 648 1276 46 443 158 81 1142 53 133 356 75 30 476 142...
- Page 31 Split-system cooling units and heat pumps Electrical heaters in models 420 & 485 of indoor unit 40SZ/SF Assembly and connection inside the unit. Supports attached to the unit Kit assembly: When the frame with the electrical heaters is provided in a kit, follow the steps below for connecting it: Step 1: the electrical heaters are sent divided into 2 frames, depending on the required power.
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Page 32: Hot Water Coil (40Sz/Sf And 40Nz/Nf)
Split-system cooling units and heat pumps Hot water coil (40SZ/SF and 40NZ/NF) Electrical heaters in indoor unit 40NZ/NF Assembly and connection inside the unit. Hot water coil for mounting inside the unit, with a 3-way valve managed by the unit’s electronic control. In the case of 40NZ/NF unit, this valve Kit assembly: will be mounted outside of the unit. -
Page 33: Stop-Drop (40Sz/Sf)
Split-system cooling units and heat pumps Filters (40SZ/SF and 40NZ/NF) 40NZ/NF units All model types can substitute the fi ltering mesh that the units include regularly with G4 rating, mounted on the same frames. Creased opacimetric fi lters classifi ed F6 to F9 can also be added. Indoor unit 40SZ/SF For taking out the fi... - Page 34 Split-system cooling units and heat pumps 40NZ/NF units Models 420 and 485 of 40SZ/SF units In the indoor 40NZ/NF unit, the gravimetric fi lters can also be replaced by double stage opacimetric fi lters: F6 + F7, F6 + F8 or F7 + F9. It is necessary to lift the tab and drag it down the rail in order to extract the frames.
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Page 35: Commissioning
Split-system cooling units and heat pumps 14. C OMMISSIONING Checks prior to commissioning - It is advisable to make a complete sketch of the installation including - When commissioning the compressor(s), check the subcooling and the location of the unit and all the components used. This will be very overheating and thus verify if the refrigerant load is appropriate to helpful for maintenance and repairs to the installation. -
Page 36: Possible Problems At Commissioning
Split-system cooling units and heat pumps Possible problems at commissioning All indications given in this brochure must be respected and Cooling MODE complied with to guarantee a correct operation of the units. Suction pressure Next, several possible operation problems are stated which could Suction temperature (1) ºC happen if the conditions of the commissioning are not appropriate. -
Page 37: Maintenance
Split-system cooling units and heat pumps 15. M AINTENANCE Note: The outdoor units 38NZ/NF can include a protection grille for The minimal maintenance operations and their periodicity will be made the coil (optional). This grille is fi xed by modules in the holes made for according to the national regulations. -
Page 38: Filter Drier
Split-system cooling units and heat pumps Models 40SZ/SF- 420 and 485 Note: The available assemblies with mixing boxes can be consulted in chapter 4 “Available assemblies”. Opacimetric fi lters Compressor In the case of compressor replacement: - Disconnect the unit from power supply. Gravimetric fi... - Page 39 Split-system cooling units and heat pumps Liquid sight glass Refrigerant - This sight glass, located on the liquid line, after the dehydrating Only qualifi ed personnel must perform a periodic tightness control, in fi lter, enables controlling the refrigerant load and the presence of accordance with the regulation (CE) Nº...
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Page 40: Control And Analysis Of Breakdowns
Split-system cooling units and heat pumps 16. C ONTROL AND ANALYSIS OF BREAKDOWNS Symptom Cause Solution Evaporation pressure very high in relation with a) Charge excess a) Collect refrigerant the air inlet b) High air temperature b) Verify overheating c) Compressor suction not air tight c) Verify compressor state and replace d) Cycle reversing valve in middle position d) Check that the valve is not clogged. - Page 41 Split-system cooling units and heat pumps Notes:...
- Page 42 Split-system cooling units and heat pumps Notes:...
- Page 44 Order No.: 10126, 01.2016. Supersedes order No.: 07.2015 Manufactured for CARRIER in Spain. The manufacturer reserves the right to change the specifi cation without prior notice. Printed in the European Union.
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