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Table of Contents
Related Manuals for Carrier 50EN
Summary of Contents for Carrier 50EN
- Page 1 M A I N T E N A N C E I N S T R U C T I O N S Packaged rooftop cooling only / heat pumps and separated gas module option 50EN/EH Nominal cooling capacity 21,2 - 85,2 kW Nominal heating capacity 21,7 - 88,7 kW 50 Hz Translation of the original document 80046, 10.2016...
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Page 2: Table Of Contents
Packaged rooftop units Contents 1. Introduction ........................................3 2. Operation limits .........................................3 3. Technical characteristics (EN-14511-2013) ..............................4 4. Safety advice ........................................6 5. Unit identifi cation .......................................6 6. Possible types of assemblies ....................................7 7. Transport and handling .....................................8 Transport ...........................................8 Discharging of the unit ......................................8 Weight overview (kg) ......................................9 Centre of gravity coordinates (mm) ...................................9 8. -
Page 3: Introduction
Packaged rooftop units 1. I NTRODUCTION The 50EN/EH cooling units and heat pumps are autonomous air-air These units are equipped with electronic axial fans in the outdoor units of horizontal design, rooftop type. circuit, electronic plug-fans in the indoor circuit, air coils, hermetic scroll compressors and electronic control with microprocessor, components •... -
Page 4: Technical Characteristics (En-14511-2013)
Packaged rooftop units 3. T (EN-14511-2013) ECHNICAL CHARACTERISTICS 50EN/EH 90HEE 120HEE 120T 160HEE 160T 180HEE 180T 21,2 23,1 25,2 30,1 33,4 38,1 42,5 46,3 Cooling capacity (kW) Cooling Power input (kW) 10,7 11,1 13,6 14,1 16,5 capacities EER performance... - Page 5 Packaged rooftop units 3. T (EN-14511-2013) ECHNICAL CHARACTERISTICS 50EN/EH 200HEE 240HEE 240T 320HEE 320T 360HEE 360T 52,7 58,5 61,3 71,3 74,6 79,9 85,2 Cooling capacity (kW) Cooling Power input (kW) 17,5 19,4 21,8 23,7 26,5 26,5 30,3 capacities...
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Page 6: Safety Advice
Temp. Max./ IP Peso\Poids\Weight NoBo Electrical protection rating: IP54 Operation weight (kg) (empty weight + fl uid + refrigerant) CARRIER SCS Fabricante\Fabricant\Manufacturer: Notifi ed Body number for surveillance of the Pressure Equipment Directive Route de Thil Compañía Industrial de Aplicaciones Térmicas, S.A. -
Page 7: Possible Types Of Assemblies
Packaged rooftop units 6. P OSSIBLE TYPES OF ASSEMBLIES Confi guration options (depending on the indoor air circulation) Assembly Legend Mwxy I = Air supply Air supply (0 : standard, 1 : optional, 2 : optional) R = Air return Air return (0 : standard, 1 : optional, 2 : optional) N = Fresh air inlet Type of assembly... -
Page 8: Transport And Handling
Packaged rooftop units 7. T RANSPORT AND HANDLING Transport - Discharging to the same plane using skids (optional): This method will be used only when it is possible to place the The unit must be handled with care to avoid transport damage. Thus transport box (trailer, maritime container, etc.) at the same height we recommend: as the discharging platform (for example, a dock). -
Page 9: Weight Overview (Kg)
Packaged rooftop units Weight overview (kg) 90HEE 120HEE 160HEE 180HEE 200HEE 240HEE 320HEE 360HEE 50EN/EH 120T 160T 180T 240T 320T 360T assembly 1071 1071 1104 1210 (standard) assembly 1120 1120 1153 1258 assemblies MA / ME 1274 1274 1307 1445... -
Page 10: Location And Assembling
Packaged rooftop units 8. L OCATION AND ASSEMBLING Choice of location When choosing the location, whatever may be the selected fashion, the In the event of assembling directly on silent-blocks to the ground, it is following precautions have to be taken into consideration: recommended that a template of the unit’s footprint with the anchoring points of the silent-blocks be made, as described in the previous section. -
Page 11: Anchorage For Antivibrators
Packaged rooftop units Anchorage for antivibrators Distances (mm) 50EN/EH 90 to 180 1.090 1.317 200 to 360 1.265 2.033 Support reactions for the various assemblies (kg) M0 Assembly MS Assembly MA Assembly ME Assembly 50EN/EH 90HEE / 90T 160 102... -
Page 12: Minimum Free Space For Commissioning And Maintenance Operations
Packaged rooftop units Minimum free space for commissioning and maintenance operations 50EN/EH - 90HEE, 90T, 120HEE, 120T, 160HEE, 160T, 180HEE and 180T 50EN/EH - 200HEE, 240HEE, 240T, 320HEE, 320T, 360HEE and 360T... -
Page 13: Sound Level
89,0 90,0 Note: The sound power spectrums can be consulted in the technical brochure for the 50EN/EH series. Sound pressure level (LP) Measurement conditions: in a clear fi eld, measured at a distance of 5 metres, directivity 2 and at 1.5 metres from the ground. -
Page 14: Checking Before Commissioning
V-220005 CARRIERrtc electronic control The CARRIERrtc control is basically composed of a μPC MEDIUM control plate, a pGD1 graphical terminal, a TCO user terminal (optional), 50EN/EH 90 to 360 and sensors. 1 Main power supply 400 III (±10%) 3 wires + ground... -
Page 15: Connection Of Probes By The Client
• an auxiliary panel in which the optional elements of the indoor on site by the client. circuit are connected. These probes are supplied inside the main electric panel of the 50EN/ EH unit. Main panel Please refer to the electrical scheme and the CARRIERrtc control brochure, included with the 50EN/EH unit. - Page 16 Packaged rooftop units Connection of the air quality probe Mounting instructions • In the radiation range of heat sources and lighting bodies e.g. spotlights. • In areas exposed to direct solar radiation. Setting and electric connections This probe is confi gured by analogue output 4…20 mA and digital output N.O.
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Page 17: Checks In The Axial Fans
Packaged rooftop units Connection of the outdoor humidity probe Location of the sensors on the machine The outdoor humidity probe (optional), necessary for the enthalpic free-cooling, is factory-installed on the hood of the fresh air intake. Outdoor temperature probe The cable is sent rolled up and attached to the interior of the hood. Outdoor fan Outdoor coil Supply air probe... -
Page 18: Checks In The Ec Plug-Fans
Packaged rooftop units Checks in the EC plug-fans - Once running, check the operation conditions: pressures, fl ows and consumptions. - Before commissioning, check the blade rotation direction and that - The overlapping of characteristic curves of the fan and the room is the axis turns without strokes nor vibrations. -
Page 19: Air Ducts Connections
Packaged rooftop units Air ducts connections Indoor circuit condensate drain pan The air supply and return ducts must be calculated in accordance with the nominal fl ow and the unit’s available pressure (refer to the technical characteristics table). The duct calculation and design must be made Outdoor circuit condensate by qualifi... -
Page 20: Safety Elements
Packaged rooftop units 10. S AFETY ELEMENTS Low pressure pressostat Condensation and evaporation pressure control When connected to the compressor suction, it will stop its operation This safety device, integrated in the control, enables managing the when the pressure at that point goes down below the tare value (caused outdoor fan(s) when the units are working in cooling mode with low outdoor temperatures (condensation control) or in heating mode with by obstructions in the circuit, excessive dirt in the fi... - Page 21 Packaged rooftop units Clogged fi lter detector (optional) Anti-freeze protection for low outdoor temperatures (opcional equipment for GREAT COLD) Differential pressostat for indication, through an automatic reset alarm, of a level of dirtiness of the fi lters greater than the established level. - Electrical heater for protecting the components of the electric panel.
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Page 22: Opcional Equipment
fi lters, can also be added. In the diagram below the position of the sheet metal precuts is shown on the side panel. LEGEND Water outlet Water inlet Ø hydraulic 50EN/EH (mm) (mm) (mm) connections: I/O 90HEE / 90T / 120HEE / 120T 1 1/4”... -
Page 23: Electrical Heaters
Packaged rooftop units Electrical heaters - The auxiliary electrical heaters are ready for operation in two power To attach these frames to the unit, two supports are provided. These supports must be screwed with the four Allen M4 screws included in stages. -
Page 24: Gas Burner
Gas Directive 90/396 EEC (see EC homologation certifi cate of the unit with burner in specifi c gas burner brochure). - The electronic control of the 50EN/EH unit will only be managed by the burner connection as support for the heating depending on ambient conditions. -
Page 25: Hood Cover
Packaged rooftop units Hood cover Stop-drop The hoods for the fresh air and extraction air intakes (based on the The stop-drop can be installed in the indoor air coil and at the fresh assembly selected) are supplied separately from the unit for assembly air intake. -
Page 26: Commissioning
TIEMPO, CONVIENE QUE LA UNIDAD ESTÉ CONECTADA UN MÍNIMO DE 24 HORAS. - All the 50EN/EH models are equipped with scroll type compressors and have a phase control relay. Verify that they turn in the correct Models 200 to 360 direction and, if not, reverse the power wires. -
Page 27: Possible Problems At Commissioning
Packaged rooftop units Possible problems at commissioning Cooling MODE All indications given in this brochure must be respected and Suction pressure complied with to guarantee a correct operation of the units. Suction temperature (1) ºC Compressor Next, several possible operation problems are stated which could Condensation pressure happen if the conditions of the commissioning are not appropriate. -
Page 28: Access To Components
Packaged rooftop units Access to components Compressor Caution: Before intervening in the unit, cut off main power. In the case of compressor replacement: V-220004 - Disconnect the unit from power supply. Quarter-turn latches - Completely empty the load of refrigerant using a specifi c recovery unit for R-410A The access panels to fi... - Page 29 Packaged rooftop units - The refrigerant fl uid at low temperature can cause infl ammatory injuries similar to burns when contacting the skin or eyes. Always Oils used for cooling machines do not post any threat to one’s health use safety goggles, gloves, etc. when opening ducts that may contain if used while following the usage guidelines: liquids.
- Page 30 Packaged rooftop units Air fi lters • Filters in models 160 to 180 with fi lters G or G+F: - Clean regularly. Depending on the installation conditions, the fi lter aspect must be examined to defi ne the cleaning periodicity. - Gravimetric fi...
- Page 31 Packaged rooftop units • Filters in models 160 to 180 with fi lters F+F: To extract the fi lters from the upper rail, it is necessary to unscrew the two screws that are attached to that rail. Attachment screws With the rail freed, the two frames can be removed tilting the rail slightly.
- Page 32 Packaged rooftop units • Filters in models 200 to 360: To extract the fi lters from the upper rail, it is necessary to unscrew Filters G or G+F: the frames with each type of fi lters, gravimetrics the screw that is attached to that rail. and opacimetric (if the unit has includes the latter), are assembled over sheet steel profi...
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Page 33: Control And Analysis Of Breakdowns
Packaged rooftop units 14. 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 34 Packaged rooftop units Notes:...
- Page 36 Order No.: 10046, 10.2016. Supersedes order No.: 03.2015 Manufactured for CARRIER in Spain. The manufacturer reserves the right to change the specifi cation without prior notice. Printed in the European Union.