Carrier 50EN 415 Installation, Operation And Maintenance Instructions

Carrier 50EN 415 Installation, Operation And Maintenance Instructions

Packaged rooftop units and separated gas module option

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I N S TA L L AT I O N , O P E R AT I O N A N D
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 units
and separated gas module option
50EN/EH 415-1200
Nominal cooling capacity 92.8 - 287.0 kW
Nominal heating capacity 99.3 - 290.7 kW
Translation of the original document 80049, 12.2018

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Summary of Contents for Carrier 50EN 415

  • Page 1 I N S TA L L AT I O N , O P E R AT I O N A N D 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 units and separated gas module option 50EN/EH 415-1200...
  • Page 2: Table Of Contents

    CONTENTS 1 - INTRODUCTION ..............................3 2 - UNIT IDENTIFICATION ............................3 3 - POSSIBLE TYPES OF ASSEMBLIES ......................... 4 4 - SAFETY ADVISE ..............................5 5 - OPERATION LIMITS............................5 6 - TRANSPORT AND HANDLING ........................... 6 6.1 Centres of gravity ............................7 6.2 Weight overview (kg) ............................
  • Page 3: Introduction

    PSmax(BP\LP) Temp. Max./ IP Peso\Poids\Weight NoBo Maximum service pressure in the high pressure side (R-410A = 42 bar) CARRIER SCS Fabricante\Fabricant\Manufacturer: Route de Thil Compañía Industrial de Aplicaciones Térmicas, S.A. Maximum service pressure in the low pressure side 01122 Montluel-FRANCE P.
  • Page 4: Possible Types Of Assemblies

    3 - POSSIBLE TYPES OF ASSEMBLIES Depending on the indoor airfl ow direction MA assemblies: Axial return and air extraction fan (mixing  box of 3 dampers). Assembly Legend MA00 MA01 MA02 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...
  • Page 5: Safety Advise

    4 - SAFETY ADVISE To avoid any risk of accident during installation, commissioning All interventions on the refrigerating circuit must be performed or maintenance, it is obligatory to take into consideration the in accordance with applicable legislation. following specifi cations for the units: refrigerated circuits under Within the European Union, it is necessary to observe regulation pressure, refrigerant presence, electrical voltage presence and (EU) No.517/2014, known as F-Gas, over Certain greenhouse...
  • Page 6: Transport And Handling

    6 - TRANSPORT AND HANDLING These machines must be unloaded and positioned by a specialist ● Discharging to the same plane using skids (optional): handling company using the appropriate, standardised tools. This method will be used only when it is possible to place the Before handling, check that the path leading to the installation transport box (trailer, maritime container, etc.) at the same location is accessible and free from obstacles.
  • Page 7: Centres Of Gravity

    6 - TRANSPORT AND HANDLING 6.1 Centres of gravity M0 assembly 50EN/EH Centre of gravity Weight (kg) X(mm) Y(mm) Z(mm) 1.449 1.069 1.703 2.135 1.056 1.926 1.435 1.057 1.726 2.107 1.057 1.951 2.097 1.060 1.950 2.063 1.062 1.999 2.135 1.025 2.213 2.041 1.028...
  • Page 8: Weight Overview (Kg)

    6 - TRANSPORT AND HANDLING 6.2 Weight overview (kg) Weight of the various assemblies (kg) 50EN/EH 1100 1200 M0 assembly (standard) 1.703 1.926 1.726 1.951 1.950 1.999 2.213 2.264 2.390 2.487 2.998 3.111 MS assembly 1.779 2.019 1.802 2.043 2.042 2.091 2.325 2.377...
  • Page 9: Positioning And Installation

    7 - POSITIONING AND INSTALLATION 7.1 Choice of location When choosing the location, whatever may be the selected always in observation of the handling standards that have been described, below is a proposed assembly sequence that may fashion, the following precautions have to be taken into facilitate the operation, keeping in mind that the sequence consideration: performed in the installation shall be the one most suitable to the...
  • Page 10: Anchorage For Antivibrators

    7 - POSITIONING AND INSTALLATION 7.2 Anchorage for antivibrators 50EN/EH 415 to 960 50EN/EH A (mm) B (mm) C (mm) 415 / 480 1.545 2.095 420 / 960 2.290 2.095 M12 (rivet nut) Reactions in the supports for the various assemblies (kg) M0 Assembly MS Assembly MA Assembly...
  • Page 11 7 - POSITIONING AND INSTALLATION 7.2 Anchorage for antivibrators 50EN/EH 1100 and 1200 M12 (rivet nut) 50EN/EH A (mm) B (mm) C (mm) 1100 / 1200 2.027 2.095 Reactions in the supports for the various assemblies (kg) M0 Assembly MS Assembly 50EN/EH 1100 1200...
  • Page 12: Recommended Service Clearance

    7 - POSITIONING AND INSTALLATION 7.3 Recommended service clearance 50EN/EH units are not designed to have overhead obstruction. 50EN/EH - 415, 420, 480, 485, 540, 600, 650, 720, 840 and 960 50EN/EH - 1100 and 1200 1500m m 1500m m 1500m m 1500m m LEGEND...
  • Page 13: Electrical Connection

    8 - ELECTRICAL CONNECTION 8.1 Installation norms ● The name plate data. ● The wiring diagram included with the unit. Important: All connections in the site are the responsibility of the installer. These connections are ● Norms in eff ect that regulate the installation of air conditioning always made as per the current regulation.
  • Page 14: Electric Panel

    8 - ELECTRICAL CONNECTION 8.5 Electric panel TCO user terminal (optional): This terminal can be installed on the electric panel, instead of All units include a fully wired electrical panel, with forced pGD1 terminal. In this case, the remote connection of the pGD1 ventilation.
  • Page 15: Location Of Sensors (2 Circuits)

    8 - ELECTRICAL CONNECTION 8.6 Location of sensors (2 circuits) ● Fasten the rear of the sensor case to the panel or the wall (for fastening the case, use the screws supplied with the fastening kit, paying attention to use the proper spacers, to not damage Outdoor temperature probe the sensor’s electronics).
  • Page 16 8 - ELECTRICAL CONNECTION T h e n t h e e l e c t r i c a l ● It should never be mounted: connection of the probe - On outside walls. should be made. - In niches or behind curtains. - Above or near heat sources or shelves.
  • Page 17: Fans And Air Ducts

    9 - FANS AND AIR DUCTS 9.1 Checks in the axial fans ● Closing mode: First rotate 90º (anti-clockwise): closing brings ● Before commissioning, check the blade rotation direction and the latch to the locked position. The door that the axis turns without strokes nor vibrations. cannot be opened.
  • Page 18: Air Ducts Connections

    9 - FANS AND AIR DUCTS Pulley and belt calibration Attention: Before performing these operations, it is - e = pulley centre distance in mm necessary to verify that the unit is disconnected from - E = see table below for the value mains.
  • Page 19: Condensate Drain

    10 - CONDENSATE DRAIN All models are equipped with a condensate drain pan in the Important: the water drain pipe must be provided with a siphon indoor circuit, with a bronze, gas threaded 1 1/4” M drain junction. to avoid bad smell and water spills. CONNECT SIPHON METTRE SIPHON PONER SIFON...
  • Page 20: Safety Elements

    11 - SAFETY ELEMENTS Low pressure pressostat Condensation and evaporation pressure control When connected to the compressor suction, it will stop its This safety device, integrated in the control, enables managing operation when the pressure at that point goes down below the the outdoor fans when the units are working in cooling mode with tare value (caused by obstructions in the circuit, excessive dirt low outdoor temperatures (condensation control) or in heating...
  • Page 21 11 - SAFETY ELEMENTS Clogged fi lter detector (optional) Anti-freeze protection for low outdoor temperatures (opcional equipment for GREAT COLD) Diff erential pressostat for detection of the fi lter clogging level. The value for alarm signalling is set in factory, depending on ●...
  • Page 22: Factory Options And Accessories

    12 - FACTORY OPTIONS AND ACCESSORIES 12.1 Filters ● Assembly inside the unit. The inlet/outlet connections of the hot water coil are located inside the unit. The connection can All model types can substitute the fi ltering mesh that the units be established via the unit base using fl...
  • Page 23: Electrical Heaters

    12 - FACTORY OPTIONS AND ACCESSORIES 12.3 Electrical heaters To attach these frames to the unit, four supports are provided. ● The auxiliary electrical heaters are ready for operation in two In the case of 2 frames, screw each one of them to 2 supports power stages.
  • Page 24: Dampers Hoods

    12 - FACTORY OPTIONS AND ACCESSORIES 12.4 Dampers hoods 12.5 Stop-drop The fresh air and exhaust air damper hoods (depending on the The stop-drop can be installed in the indoor air coil and on the assembly chosen) are supplied disassembled. The installer have fresh air intake.
  • Page 25: Rotary Heat Exchanger

    12 - FACTORY OPTIONS AND ACCESSORIES 12.6 Rotary heat exchanger The rotary heat exchanger, available for models 415 to 960, Weight and centre of gravity of module + curb: consists of a module attached to one side of the 50EN/EH unit The set of module + curb must be lifted and fi...
  • Page 26: Gas Burner

    12 - FACTORY OPTIONS AND ACCESSORIES 12.7 Gas burner 12.8 Pre-assembly roofcurb ● Natural gas or propane gas burner with proportional actuator The 50EN/EH unit can be attached to a standardised pre- 0-10V designed in accordance with the standards in force in assembly roofcurb with adjustable height, built in galvanised compliance with the Gas Directive 90/396 EEC.
  • Page 27: Commissioning

    13 - COMMISSIONING 13.1 Checks prior to commissioning ● It is advisable to make a complete sketch of the installation SCROLL COMPRESSOR. CHECK SENSE OF ROTATION including the location of the unit and all the components used. COMPRESSEUR SCROLL. VÉRIFIER LE SENS DE ROTATION This will be very helpful for maintenance and repairs to the COMPRESOR SCROLL.
  • Page 28: Possible Problems At Commissioning

    13 - COMMISSIONING 13.2 Possible problems at commissioning Operating readings All indications given in this manual 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 Suction temperature (1) ºC could happen if the conditions of the commissioning are not...
  • Page 29: Maintenance

    14 - MAINTENANCE The minimal maintenance operations and their periodicity The oil type recommended for these units is: will be made in accordance with national regulations. Copeland 3MAF 32cST, Danfoss POE 160SZ, ICI Emkarate RL 32CF, Mobil EAL Artic 22CC. All work on the unit’s electrical or refrigerant systems must be carried out by a qualifi...
  • Page 30: Servicing

    14 - MAINTENANCE 14.3 access to the main components ● The refrigerant and lubricating oil, and the low-temperature liquid refrigerant in particular, may cause infl ammatory lesions Quarter-turn latches similar to burns if they come into contact with the skin or eyes. Always wear protective eyewear, gloves and other protective The access panels to fi...
  • Page 31 14 - MAINTENANCE Compressor Dryer fi lter In the case of compressor replacement: ● The fi lter function is the preserve the cooling circuit clean and without humidity, neutralizing the acids that can be found in ● Disconnect the unit from power supply. the cooling circuit.
  • Page 32 14 - MAINTENANCE Air fi lters Note: the access panel to the fi lters is fi tted with hinges + quarter- turn latches of stainless steel and 8 mm triangular insert. ● Depending on the installation conditions, the fi lter aspect must be examined to defi...
  • Page 33: Control And Analysis Of Breakdowns

    15 - CONTROL 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: Final Shutdown

    16 - FINAL SHUTDOWN 16.1 Shutting down 16.4 Materials to be recovered for recycling Separate the units from their energy sources, allow them to cool ● Steel then drain them completely. ● Copper ● Aluminium 16.2 Recommendations for disassembly ● Plastics Use the original lifting equipment.
  • Page 36 CARRIER participates in the ECP programme for RT Check ongoing validity of certifi cate: www.eurovent-certifi cation.com Order No.: 10049, 12.2018. Supersedes order No.: 10.2016 Manufactured for CARRIER in Spain. Manufacturer reserves the right to change any product specifi cations without notice.

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