Carrier 50FC Installation, Operation And Maintenance Instructions
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Carrier 50FC Installation, Operation And Maintenance Instructions

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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
50FC 100-280
Nominal cooling capacity R-410A 100.0 - 279.9 kW
Nominal heating capacity R-410A 100.2 - 308.4 kW
Nominal cooling capacity R-454B 97,7 - 273,2 kW
Nominal heating capacity R-454B 97,4 - 299,5 kW
Translation of the original document 80576, 12.2021

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  • 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 units 50FC 100-280 Nominal cooling capacity R-410A 100.0 - 279.9 kW Nominal heating capacity R-410A 100.2 - 308.4 kW...

  • Page 2: Table Of Contents

    8.2 - Power supply ..................................... 22 8.3 - Wire sizing ....................................22 8.4 - Electrical cabinet ..................................22 8.5 - “50FC” electronic control ................................24 8.6 - Location of sensors on the machine............................24 8.7 - Sensors connection by the costumer ............................24 9 - FANS AND AIR DUCTS ................................

  • Page 3: Introduction

    1 - INTRODUCTION The 50FC packaged rooftop range consists of autonomous - RoHS Directive 2011/65/EU (RoHS) compact air-air units of horizontal design, rooftop type, with - Eco-design Directive 2009/125/EC (ECO-DESIGN) reversible heat pump operation. - Energy Labelling Directive 2017/1369/EU ( E C O - These units are designed to be installed outdoors, in a free fi...

  • Page 4: Safety Standards For Refrigerant

    2 - SAFETY ADVISE 2.2 - Safety standards for refrigerant Important: These units contain a fl uorinated greenhouse gas hydrogen chloride and other toxic compounds. These compounds may produce severe physiological consequences if accidentally covered by the Kyoto protocol. inhaled or swallowed. All interventions on the refrigerating circuit must be performed in accordance with applicable legislation.

  • Page 5: Possible Types Of Assemblies

    3 - POSSIBLE TYPES OF ASSEMBLIES Depending on the indoor airfl ow direction B1 assembly BW assembly Standard Plug-fan in return section S’’ R’’ Heat recovery wheel module (passive recovery) S’ R’ S’ B2 assembly BT assembly Economizer, 2 dampers: Return top box with S’’...

  • Page 6: Transport

    9999 01120, MONTLUEL, France fl ame, an electrical power source, a mobile phone, or any other UK Importer: Toshiba Carrier UK Ltd, Porsham Close, Roborough, Plymouth, PL6 7DB heat source. Contient des gaz à effet de serre fluorés \ Contains fluorinated greenhouse gases regulated by the Kyoto protocol...
  • Page 7 The unit’s beams are fi tted with the following elements to allow The following drawings show the position in which the transport handling: supports are to be placed: Models 100 to 170: Models 180 to 280: Distances (mm) 50FC 100 to 120 640,5 1440 1080 643,5 130 to 170...
  • Page 8 It is mandatory to follow the lifting instructions given in the drawings Dimensions Centre of gravity Weight provided on the next page. (mm) (mm) (kg) 50FC Length Width Height The centre of gravity is not necessarily in the middle of the unit and 3820 2257 2555 1743...
  • Page 9 Sling Confi gurations 5 and 6 3000 See detail A Detail A Expander Sling Stretcher No. riggings Unit Beam Distance between riggings points (mm) 50FC Assemblies Confi guration points x width length beam (mm) (mm) B1, B2 2257 3804 2160...
  • Page 10 5 - HANDLING Correct lifting mode...

  • Page 11: Operation Limits

    6 - OPERATION LIMITS Inlet air conditions Cooling Inlet air conditions Heating Minimum temperature 9,7ºC WB Minimum temperature 10ºC Indoor coil Indoor coil Maximum temperature 24ºC WB Maximum temperature 27ºC Minimum temperature -10ºC (1) Minimum temperature -15ºC WB (2) Outdoor coil Outdoor coil Maximum temperature 48ºC...

  • Page 12: Antivibrators Assembly (Silent-Blocks)

    Sound power level (LW) paragraph “Preparation of the ground”. 50FC With the help of the crane or the forklift truck, the unit will be raised 63 Hz 64,6...

  • Page 13: Pre-Assembly Roofcurb (Optional)

    7 - POSITIONING AND INSTALLATION 7.4 - Pre-assembly roofcurb (optional) These units can rest on standardised pre-assembly roofcurbs with adjustable height, built in galvanised steel panelling with polyester paint and thermal insulation. The levelling system uses angle pieces that allow adjustments in the X and Y axes. As a result, the unit will be perfectly levelled on a sloping roof.
  • Page 14 These slings will be hooked on the lifting grips fi tted to the roofcurb. Joists Standard With burner 50FC Roofcurb A (mm) B (mm) A (mm) B (mm) 100 to 120 3.569...
  • Page 15 7 - POSITIONING AND INSTALLATION Important: Check that the roofcurb is installed in the Self-adhesive rubber right direction. gasket of 9 mm Position A Position B Return Supply Supply Return Position C Position D (NO) Insulation of 9 mm on the ducts of supply and return Upper profi...
  • Page 16 (example: 150 mm minimum sealing height in France according to DTU). To do this, check that the “D” dimension of the roofcurb exceeds the thickness of the cladding plus the insulation plus the minimum sealing distance required. 50FC unit Sealing upsweep 150mm min.
  • Page 17 7 - POSITIONING AND INSTALLATION Important: All roofcurb are supplied with a return safety grille These precuts are located in the roofcurb area below the electrical intended for plenum installations. For installations with ducted cabinet. Its position can be consulted in the dimensional drawings. return, the grille must be removed prior to place the machine on the roofcurb.

  • Page 18: Centres Of Gravity, Weight And Reactions In The Supports

    7 - POSITIONING AND INSTALLATION 7.5 - Centres of gravity, weight and reactions in the supports B1 assembly 50FC Centre of gravity (mm) Weight Reactions in the supports (kg) (kg) 1566 1046 1430 274 363 127 242 326 100 1566...
  • Page 19 7 - POSITIONING AND INSTALLATION 7.5 - Centres of gravity, weight and reactions in the supports B1 assembly Centre of gravity Weight Reactions in the supports 50FC (mm) (kg) (kg) R1 R2 R3 R4 R5 R6 R7 R8 180 2356 1121 965...

  • Page 20: Recommended Service Clearance

    50FC - 100 to 170 B1 and B2 assemblies...
  • Page 21 50FC - 180 to 280 B1 and B2 assemblies...

  • Page 22: Electrical Connection

    8 - ELECTRICAL CONNECTION 8.1 - Installation norms ■ The distance between the unit and its power source. ■ The protection to be placed at the power source. Important: All connections in the site are the responsibility ■ Neutral operating conditions. of the installer.
  • Page 23 8 - ELECTRICAL CONNECTION Models 180 to 280: The following images show the location of these boxes: Models 100 to 170: BOX4 BOX7 BOX3 BOX8 BOX6 Electric cabinet Electric power supply inputs BOX2 BOX1 The fan for cooling the electrical cabinet, the graphic terminal and the ground connector, all located on the doors, must be disconnected before removing the doors.

  • Page 24: 50Fc" Electronic Control

    4-way 4-way remotely connected. valve valve (heat pump) (heat pump) Note: Refer to the “50FC” control brochure to obtain more detailed Extraction information on its operation. High Suction Suction High pressure temp.
  • Page 25 8 - ELECTRICAL CONNECTION ■ This probe must be fastened to the panel or the wall of the room to be conditioned, at ca. 1.5 m height. Electrical connection ■ Make the electrical connection according to the unit confi guration: - NTC Probe S5a: B5 (connector J3): with 2 x 1,5 mm section cable,...
  • Page 26 8 - ELECTRICAL CONNECTION Connection of the CO air quality probe Duct-mounted This version can be connected to the air duct in these two ways: There are diff erent options: ■ Ambient air quality probe. ±0.3 3.54 “ ±0.11 ■ Return air quality probe (duct-mounted). Ø...

  • Page 27: Fans And Air Ducts

    (this action can be performed both in the can be readjusted on site from the graphic terminal (please motor as well as in the fan). refer to the “50FC” control brochure). Pulleys must stay on the same plane Tensor...

  • Page 28: Air Ducts Connections

    9 - FANS AND AIR DUCTS Belt tension: Important: During commissioning, the belt tension must be checked after 48 hours of operation. After fi xing the pulleys on the same plane, the belt tension is made The belt tension must be checked in all cases and before by tightening the tensor screw.

  • Page 29: Condensate Drain

    10 - CONDENSATE DRAIN These units are equipped with a condensate drainage pan in the Important: the water drain pipe must be CONNECT SIPHON indoor circuit, with a 3/4” M gas threaded plastic drain connection. provided with a siphon to avoid bad smell METTRE SIPHON and water spills.

  • Page 30: Safety Elements

    Low pressure safety Diff erential switch for detection of the fi lter clogging level. The low pressure safety is done by the “50FC” electronic control via the measure of the low pressure transducer. This switch is installed in the factory in the electrical cabinet.
  • Page 31 Remote alarm (optional) activates a acoustic and visual signal. This “50FC” control allows the management of a relay for remote alarm detector incorporates configurable relay signalling. outputs, bluetooth connection and an user interface.

  • Page 32: Factory Options And Accessories

    12 - FACTORY OPTIONS AND ACCESSORIES 12.1 - Dampers hoods Depending on the assembly chosen, the fresh air and exhaust ■ Step 3: Fasten the reinforcing triangles (4) to the hood (1) using air damper hoods are supplied folded down, to be fi tted on site 5 or 6 screws (depending on assembly).

  • Page 33: Heat Recovery Wheel Module (Bw Assembly)

    Note: see the wiring diagram included with the unit for a more detailed information about the wiring. The connection is done trought the left-hand panels (front view). Initial location of the cables for connection: 50FC unit Wheel module BOX5 BOX3...

  • Page 34: Air Fi Lters

    12 - FACTORY OPTIONS AND ACCESSORIES Note: Check that the locks are not blocked. Open them with a Connection to be made by the customer: 4 mm Allen wrench (in an anti-clockwise direction). 50FC unit Wheel module BOX5 BOX3 BOX6...

  • Page 35: Heat Recovery Coil

    The installer must feed the W43 cable through the M16 - Activate the water pump (to be foreseen by the installer) and feedthrough located in the bottom panel of the 50FC unit, and repeat the previous steps until no air noises are heard in the next, connect it to BOX8.

  • Page 36: Stop-Drop In The Indoor Coil

    - During the defrosting operation if selected as support. thermistors - As a backup in COOLING mode in accordance with the return and supply temperatures. ■ Up to 3 values of total power available for each model: 50FC RAF (Low) RAM (Nominal) RAS (High) 100 to 120...

  • Page 37: Hot Water Coil

    This thermostat is located on the panel next to he supply fans, if necessary to Dimensions (mm) reset the safety. 50FC Ø - “Very low outdoor temperature” option (upon request): with additional anti-freeze technology based on the water 100 to 280 322 100 184 2”...

  • Page 38: Warm Air Heater Module With Gas Burner

    Natural or propane gas burner with modulating actuator, in resistance. accordance with the Gas Directive 2009/142/EC, installed inside a pre-assembly roofcurb. The 50FC unit with lower supply will be - The PCH heater is a modulating type; the thermal power placed on this roofcurb.
  • Page 39 These roofcurb with integrated burner are designed to be coupled with an 50FC unit (roof-top installation). Make sure they If the burner is not going to be used over a prolonged are not fi tted near areas where there is a risk of fi re (fl ammable period the gas supply valve must be closed.
  • Page 40 50FC unit. The costumer must connect the cables coming from the burner to the connection box “BOX8-QUE” that Clamp for attaching to the duct is located inside of the 50FC unit. This box is accessed via the same panel that the supply fans. Rotate to close...
  • Page 41 12 - FACTORY OPTIONS AND ACCESSORIES Connections at the fl ue Important: The fl ue of the gas burner is not supplied with In this case, the standards UNI-CIG 7129 and UNI-CIG 7131 the unit. Its design and installation is the responsibility of require the provision of suitable vents on the walls.
  • Page 42 12 - FACTORY OPTIONS AND ACCESSORIES Gas connection Use the gas line connections only with EC certifi ed components. Important: For a correct maintenance, connect the PCH module by means of a seal and swivel gasket. Avoid using threaded The PCH module is supplied complete with a dual gas valve, gas connected directly on the gas connection.
  • Page 43 12 - FACTORY OPTIONS AND ACCESSORIES Country table - gas category: ■ between the gas pipe and the Venturi, replace the gas orifi ce plate fi tted (natural gas) with the one supplied with the kit (for LPG); Country Category Gas Pressure Pressure ■...
  • Page 44 12 - FACTORY OPTIONS AND ACCESSORIES Analysis of combustion After detecting the pilot fl ame, the equipment opens the main gas valve EV2 [C] to supply gas to the main burner. Wait until the heater is switched on. Check that the heater is After a time of dual functioning of the two burners (pilot and running at maximum power by using one of the two methods below: main), the modulation PCB removes gas from the EVP valve...
  • Page 45 CPU-SMART PCB board LCD display to reset the CPU PCB on the machine by pressing with the 50FC unit must be connected to the connection box the arrows at the same time. “BOX8-QUE” that is located inside of the 50FC unit (please consult the paragraph “Electrical connection of the burner”.
  • Page 46 12 - FACTORY OPTIONS AND ACCESSORIES By removing the access door to the inside of the burner, the rdy: the machine is on without burner fl ame; it is waiting CPU-SMART PCB can be seen : for the ON control and/or the heat demand from the room temperature monitoring system.
  • Page 47 15 minutes. SMART equipment Entering the second password grants access to third level. Lack of communication This password must be requested directly to “CARRIER between TER equipment TER equipment or CPU- Auto-reset Technical Service”. and CPU for more than...

  • Page 48: Cooling Recovery Circuit (Ba And Bb Assemblies)

    Characteristics of the recovery circuit 100 to 130 to 160 to 180 to 250 to Recovery compressor 50FC Compressor type Scroll Adjusting the refrigerant charge No. of compressors / circuits 1 / 1 The charging valve (schrader type) must Max. absorbed...

  • Page 49: Zoning Of The Air Fl Ow

    The control board of the air zoning is assembled in a separate of them in same operating mode: heating or cooling). This function box from the 50FC unit. This board is connected in series on the allows to adapt the indoor air fl ow to the installation requirements.

  • Page 50: Commissioning

    13 - COMMISSIONING 13.1 - Checks prior to commissioning Models 100 to 170 ■ It is advisable to make a complete sketch of the installation including the location of the unit and all the components used. This will be very helpful for maintenance and repairs to the installation.

  • Page 51: Possible Problems At Commissioning

    13 - COMMISSIONING Control of the refrigerant charge 13.3 - Operational checks ■ Each unit is shipped with an exact charge of refrigerant for Check the unit operation by verifying the electronic control and proper operation.Refrigerants available are: R-410A or R-454B. the safety devices.

  • Page 52: Maintenance

    14 - MAINTENANCE 14.1 - General recommendations Level 2 maintenance To ensure optimal effi ciency and reliability of the equipment and This level requires specifi c expertise in electrical, cooling and all its functions, we recommend taking out a maintenance contract mechanical systems.

  • Page 53: Access To The Main Components

    Warning: when tightening the compressor screws, please ■ Operations on the refrigerant circuit (handling refrigerant). consult the maximum torque that can be applied. ■ Modifi cation of factory-set parameters (changes on the “50FC” ■ Solder the suction and discharge piping. control);...
  • Page 54 (t CO2e) for each model: ■ Measure the diff erence in the temperature of the pipes at the R-410A drier inlet and outlet. ■ If necessary, replace. Main circuits: 50FC Charge C1: 17,0 C1: 17,0 C1: 17,0 C1: 18,5...
  • Page 55 14 - MAINTENANCE ■ A logbook must be established for equipment subject to The mitigation parameters established in the electronic control periodic leak tests (verify the registration requirements under in case of refrigerant leakage are: national regulations). It should contain the quantity and the type - Delay time (by default, 180 seconds): Time so that when a of fl...
  • Page 56 14 - MAINTENANCE Condensate drainage pan Air coil ■ These units are equipped with a condensate drainage pan ■ Check that the coil is free from dust and grease. sloped toward the drain. ■ Cleaning the accumulated dust on the coil can be performed Note: This pan is removable for easy cleaning in models 100 to using a soft-bristled brush or a vacuum cleaner perpendicular 170.
  • Page 57 14 - MAINTENANCE Air fi lters Tab for displacement of the frames ■ Depending on the installation conditions, the fi lter aspect must be examined to defi ne the cleaning or replacing periodicity. Spare parts should be planned for. Tensioner ■...
  • Page 58 CARRIER could not accept liability. To keep the machine effi cient and guarantee a long lifetime of the heater, it is advisable to run some inspections every year, before...
  • Page 59 14 - MAINTENANCE 1) Inspection of electrodes 7) Inspection of fl ame monitoring equipment Dismantle the complete pilot fl ame and use a jet of compressed With the heater operating, close the gas tap and verify that the air to clean the mesh and nozzle. Check the integrity of the machine faults, signalled on the LCD display with code F10.

  • Page 60: Control And Analysis Of Breakdowns

    15 - CONTROL AND ANALYSIS OF BREAKDOWNS Symptom Cause Solution Evaporation pressure very a) Charge excess a) Collect refrigerant high in relation with the air b) High air temperature b) Verify overheating inlet 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 61: Final Shutdown

    16 - FINAL SHUTDOWN Shutting down Materials to be recovered for recycling Separate the units from their energy sources, allow them to cool ■ Steel then drain them completely. ■ Copper ■ Aluminium Recommendations for disassembly ■ Plastics Use the original lifting equipment. ■...
  • Page 62 Notes :...
  • Page 64 CARRIER participates in the ECP programme for RT Check ongoing validity of certifi cate: www.eurovent-certifi cation.com Order No.: 10576, 12.2021. Supersedes order No.: 06.2021. Manufactured for Carrier in Spain. Manufacturer reserves the right to change any product specifi cations without notice.

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