Carrier 50FF/FC 020-093 Installation, Operation And Maintenance Instructions
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Carrier 50FF/FC 020-093 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
Packaged rooftop units
50FF/FC 020-093
Nominal cooling capacity 22.3 - 90.2 kW
Nominal heating capacity 21.9 - 89.7 kW
Translation of the original document 80185, 12.2020
I N S T R U C T I O N S

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Summary of Contents for Carrier 50FF/FC 020-093

  • 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 50FF/FC 020-093 Nominal cooling capacity 22.3 - 90.2 kW Nominal heating capacity 21.9 - 89.7 kW...

  • Page 2: Table Of Contents

    CONTENT 1 - INTRODUCTION .................................... 3 2 - SAFETY ADVISE ................................... 3 3 - POSSIBLE TYPES OF ASSEMBLIES ............................4 4 - OPERATION LIMITS ..................................5 5 - UNIT IDENTIFICATION ................................. 6 6 - TRANSPORT AND HANDLING ..............................6 6.1 - Discharge via crane..................................6 6.2 - Discharge via forklift truck ................................

  • Page 3: Introduction

    1 - INTRODUCTION The new 50FF/FC packaged rooftop range consists of autonomous After manufacturing, all units are charged with refrigerant compact air-air units of horizontal design, rooftop type. and are tested at the factory, verifying the correct operation of all their components within the operating range for which ■...

  • Page 4: Possible Types Of Assemblies

    3 - POSSIBLE TYPES OF ASSEMBLIES Depending on the indoor airfl ow direction Indoor air direction Assembly Description Models Lower supply Lateral supply Lower supply Lateral supply Lower return Lower return Lateral return Lateral return “Standard” “Standard” Economizer, 2 dampers “Standard”...

  • Page 5: Operation Limits

    3 - POSSIBLE TYPES OF ASSEMBLIES Depending on the indoor airfl ow direction Indoor air direction Assembly Description Models Lower supply Lower supply Lower return Lateral return “In-line” 052 to 093 052 to 062 “In-line” Economizer, 2 dampers 070 to 093 052 to 062 ...

  • Page 6: Unit Identification

    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. 01122 Montluel-FRANCE P. Ind. Llanos de Jarata s/n. 14550 Montilla-SPAIN...

  • Page 7: Discharge Via Forklift Truck

    6 - TRANSPORT AND HANDLING Only attach the slings to the two lifting grips located on each Units dimensions for transportation (*): crossbar. B1, B2, BF. B3, BX, BP, BT, BB R1, R2, RP, RW Important: Three lifting grips are attached on each crossbar on BA, BW assemblies assemblies assemblies...

  • Page 8: Positioning And Installation

    7 - POSITIONING AND INSTALLATION 7.1 - Removing forklift guards 7.2.1 - Preparation of the ground It is necessary to ensure that the surface where the unit is going On units with lower supply and return, the fork-lift truck guards to be installed in completely fl...

  • Page 9: Pre-Assembly Roofcurb (Optional)

    7 - POSITIONING AND INSTALLATION The screws required for the installation of the silent-blocks are not supplied from the factory. These screws must have an adequate quality to withstand the stresses to which they will be subjected, and they must be adapted to the installation site, either on a brick curb or a steel profi...
  • Page 10 7 - POSITIONING AND INSTALLATION 7.4.1 - Handling For transport and lifting up to the roof using a crane, a rocker arm as well as approved slings, both suitable for the dimensions and weight of the roofcurb, must be used. These slings will be hooked on the eyebolts fi...
  • Page 11 7 - POSITIONING AND INSTALLATION 7.4.3 - Insulation and waterproof sealing Lay the roofcurb. The reinforcing angles prevent the roofcurb from moving. The roofcurb should slide into the 4 adjusting angle pieces. Following insulation is standard for the roofcurb: ■ Self-adhesive rubber gasket of 9 mm around its entire perimeter Important: Check that the roofcurb is installed in the and the crossbeams.
  • Page 12 7 - POSITIONING AND INSTALLATION 7.4.4 - Air ducts connections Detail of the roofcurb installed on the roof (position C): For units with vertical airfl ow, the ducts must be connected to the Upper profile of 40 mm Self-adhesive rubber gasket profi...

  • Page 13: Change In The Airfl Ow Direction

    7 - POSITIONING AND INSTALLATION 7.4.6 - Positioning the unit on the roofcurb Important: All roofcurb are supplied with a return safety grille intended for plenum installations. For installations with ducted Once the previous work has been carried out, the machine can return, the grille must be removed prior to place the machine on be mounted on the roofcurb.
  • Page 14 7 - POSITIONING AND INSTALLATION 7.5.2 - Return Note: the screws securing this structure are used to fi x the locking part to the base of the unit. The screws required to secure the The access panel to the return outlet features profi...

  • Page 15: Centres Of Gravity, Weight And Reactions In The Supports

    7 - POSITIONING AND INSTALLATION 7.6 - Centres of gravity, weight and reactions in the supports “Standard” assemblies B1 assembly 50FF Centre of gravity (mm) Weight Reactions in the supports (kg) (kg) 1.083 1.066 1.048 119 183 1.050 118 183 1.049 119 185 1.049...
  • Page 16 7 - POSITIONING AND INSTALLATION 7.6 - Centres of gravity, weight and reactions in the supports “Standard” assemblies B1 assembly 50FF Centre of gravity (mm) Reactions in the supports (kg) Weight (kg) 1.377 1.046 147 227 106 132 211 1.377 1.046 150 230 108 134 215 1.369...
  • Page 17 7 - POSITIONING AND INSTALLATION 7.6 - Centres of gravity, weight and reactions in the supports “Standard” assemblies B1 assembly 50FF Centre of gravity (mm) Weight Reactions in the supports (kg) (kg) 1.628 1.054 1.035 173 256 112 158 241 1.628 1.054 1.059 176 261 115 161 246...
  • Page 18 7 - POSITIONING AND INSTALLATION 7.6 - Centres of gravity, weight and reactions in the supports “In-line” assemblies R1 assembly 50FF Centre of gravity (mm) Weight Reactions in the supports (kg) (kg) 1.402 1.104 144 232 108 145 234 110 1.399 1.107 147 237 110 149 239 112...
  • Page 19 7 - POSITIONING AND INSTALLATION 7.6 - Centres of gravity, weight and reactions in the supports “Standard” assemblies B1 assembly 50FC Centre of gravity (mm) Weight Reactions in the supports (kg) (kg) 1.083 1.066 1.048 119 183 1.050 118 183 1.049 119 185 1.049...
  • Page 20 7 - POSITIONING AND INSTALLATION 7.6 - Centres of gravity, weight and reactions in the supports “Standard” assemblies B1 assembly 50FC Centre of gravity (mm) Reactions in the supports (kg) Weight (kg) 1.377 1.046 159 245 114 142 228 1.377 1.046 159 244 114 142 228 1.369...
  • Page 21 7 - POSITIONING AND INSTALLATION 7.6 - Centres of gravity, weight and reactions in the supports “Standard” assemblies B1 assembly 50FC Centre of gravity (mm) Weight Reactions in the supports (kg) (kg) 1.628 1.054 1.146 191 283 124 174 266 107 1.628 1.054 1.146 191 283 124 174 266 107...
  • Page 22 7 - POSITIONING AND INSTALLATION 7.6 - Centres of gravity, weight and reactions in the supports “In-line” assemblies R1 assembly 50FC Centre of gravity (mm) Weight Reactions in the supports (kg) (kg) 1.402 1.104 1.044 154 249 116 156 251 118 1.399 1.107 1.050 155 250 116 158 253 118...

  • Page 23: Recommended Service Clearance

    7 - POSITIONING AND INSTALLATION 7.7 - Recommended service clearance Important: This is the minimum space required for maintenance operations and access inside the unit. Depending on the assembly selected for the unit and the characteristics of the installation site, a larger space around it may be required to ensure proper air circulation and therefore the correct operation of the unit.
  • Page 24 7 - POSITIONING AND INSTALLATION 7.7 - Recommended service clearance Important: This is the minimum space required for maintenance operations and access inside the unit. Depending on the assembly selected for the unit and the characteristics of the installation site, a larger space around it may be required to ensure proper air circulation and therefore the correct operation of the unit.
  • Page 25 7 - POSITIONING AND INSTALLATION 7.7 - Recommended service clearance Important: This is the minimum space required for maintenance operations and access inside the unit. Depending on the assembly selected for the unit and the characteristics of the installation site, a larger space around it may be required to ensure proper air circulation and therefore the correct operation of the unit.

  • Page 26: Electrical Connection

    8 - ELECTRICAL CONNECTION 8.1 - Installation norms ■ Wiring must be selected based on: - The maximum power input, taking into account all the options Important: All connections in the site are the responsibility it features (refer to the technical brochure and the name of the installer.

  • Page 27: 50Fc" Electronic Control

    8 - ELECTRICAL CONNECTION 8.5 - “50FC” electronic control The fan for cooling the electrical cabinet, the graphic terminal and the ground connector, all located on the door, must be “50FC” electronic control is basically comprised of a control board, disconnected before removing the door.

  • Page 28: Location Of Sensors On The Machine

    8 - ELECTRICAL CONNECTION 8.6 - Location of sensors on the machine - Fasten the rear of the sensor case to the panel or the wall (for fastening the case, use the screws supplied with the Unit 1 circuit fastening kit, paying attention to use the proper spacers, to not damage the sensor’s electronics).
  • Page 29 8 - ELECTRICAL CONNECTION - This probe must be fi xed to the interior wall of the room to Humidity probe position be conditioned, at ca. 1.5 m height in the room and at least 50 cm from the next wall. - It should never be mounted: •...

  • Page 30: Fans And Air Ducts

    9 - FANS AND AIR DUCTS 9.1 - Checks in the axial fans 9.2 - Checks in the EC plug-fans ■ Before commissioning, check the blade rotation direction and ■ Before commissioning, check the blade rotation direction and that the axis turns without strokes nor vibrations. that the axis turns without strokes nor vibrations.

  • Page 31: Air Ducts Connections

    9 - FANS AND AIR DUCTS 9.3.1 - 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 32: Condensate Drain

    10 - CONDENSATE DRAIN These units are equipped with a condensate drain pan in the Important: the water drain pipe must CONNECT SIPHON indoor circuit, with a 1/2” M gas threaded plastic drain connection. be provided with a siphon to avoid bad METTRE SIPHON smell and water spills.

  • Page 33: Anti-Fi Re Safety

    11 - SAFETY ELEMENTS 11.9 - Anti-fi re safety 11.13 - Smoke detector (optional) The electronic control can activate an anti-fi re safety device that In accordance with standard NF S 61-961, this smoke detection detains the unit when the return air surpasses a temperature of station uses a LED to indicate the installation status, and if the 60°C (by default).

  • Page 34: Factory Options And Accessories

    12 - FACTORY OPTIONS AND ACCESSORIES 12.1 - Dampers hoods Self-tapping hex screws ■ Depending on the assembly chosen, the fresh air and exhaust air damper hoods are supplied folded down, to be fi tted on site by the installer. Caution: the detachment of the hood due to wrong implementation of the above steps may cause personal injury and property damage.

  • Page 35: Fresh Air Housing (B3, Bx, Bp, Ba, Bw, Rp 070 To 093, Rw Assemblies)

    12 - FACTORY OPTIONS AND ACCESSORIES The following image shows the droplet eliminator placed: ■ First, parts (1) and (2) must be connected. Then, part (3) is put in place. This structure must be fi tted on top of the unit before continuing with the assembly process.

  • Page 36: Heat Recovery Wheel Module (Bw And Rw Assemblies)

    12 - FACTORY OPTIONS AND ACCESSORIES 12.4 - Heat recovery wheel module (BW and RW assemblies) 12.4.1 - Transport and handling 8x40 hex screws The module with the heat recovery wheel and its support bed are supplied disassembled with the unit, for installation on site. ■...
  • Page 37 12 - FACTORY OPTIONS AND ACCESSORIES ■ For transport and lifting up to the roof using a crane, a rocker Initial location of the cables for connection: arm as well as approved slings must be used. These slings will 50FF/FC unit Return fans Recovery RW 052 to 062...

  • Page 38: Enclosure For Lower Return (Models 052 To 062 With R2 Assembly)

    12 - FACTORY OPTIONS AND ACCESSORIES 12.5 - Enclosure for lower return (models 052 to 062 with R2 assembly) Models 052 to 062 with R2 assembly are supplied factory-set with All these parts are fi tted to the unit using 4.8 self-tapping hex a lateral air return.

  • Page 39: Air Fi Lters

    12 - FACTORY OPTIONS AND ACCESSORIES ■ Finally, raise the hoods and secure the side parts. “In-line” assemblies Left-hand panels 10x30 hex screws Access panel Electrical connection to be made by the costumer: ■ These units include G4 gravimetric fi lters standard type, which can be replaced by: Note: see the wiring diagram included with the unit for a more detailed information about the wiring.

  • Page 40: Heat Recovery Coil

    12 - FACTORY OPTIONS AND ACCESSORIES 12.8 - Heat recovery coil This option is compatible with B1, B2, BF, BT, BB, R1 and R2 Note: see the wiring diagram included with the unit for a more assemblies. detailed information about the wiring. ■...

  • Page 41: Electrical Heaters

    12 - FACTORY OPTIONS AND ACCESSORIES 12.9 - Electrical heaters ■ The electrical heaters incorporate safety thermistors for ■ The auxiliary electrical heaters are ready for operation in two power stages. This heaters are managed by the electronic protection of the unit against excess temperature. One of them control of the unit that can activate them in the following cases: has automatic reset and tare value at 65ºC, the other one has - As a backup in HEATING mode, following the input of all the...

  • Page 42: Preheater Module

    12 - FACTORY OPTIONS AND ACCESSORIES 12.11 - Preheater module With BF assembly, 100% fresh air, it is possible to incorporate a preheater module (electrical heater) coupled to the fresh air intake. This module is supplied in kit for installation on site. Electronic control manages this electrical heater with proportional control.

  • Page 43: Hot Water Coil

    12 - FACTORY OPTIONS AND ACCESSORIES 12.12 - Hot water coil ■ Hot water coil with a three-way valve managed by the electronic The position of the sheet metal precuts on the side panel are control of the unit. The water coil could be activated in the shown in the following diagrams.

  • Page 44: Gas-Fi Red Condensing Boiler

    12 - FACTORY OPTIONS AND ACCESSORIES - Pour more water into the circuit and repeat the previous steps. content. - Proportional air / gas valve. Low NOx emissions (class 5, - Activate the water pump (to be foreseen by the installer, according to standard EN 297).
  • Page 45 12 - FACTORY OPTIONS AND ACCESSORIES This manual and the manufacturer’s manual must be kept 1- Technical data plate: with care. If it is lost or damaged, please contact the Technical This plate indicates the technical and performance data. Assistance Service for a new copy. Gas type: Category: The thermal module, before being connected to the hydraulic...
  • Page 46 12 - FACTORY OPTIONS AND ACCESSORIES 12.13.4 - Boiler layout 12.13.5 - Installation of the boiler The boiler is supplied disassembled with the 50FF/FC unit, for installation on site. The hydraulic circuit is assembled inside the 50FF/FC unit. The installer must connect the connecting piping with the boiler. Note: all this piping system is sent packed together with the boiler.
  • Page 47 12 - FACTORY OPTIONS AND ACCESSORIES Step 2: Replace the panel (1). The following image shows the Step 4: Drop the boiler on the bracket (6) and screw on the four panel by the outer side of the 50FF/FC unit. Then fi x the clamps fi...
  • Page 48 12 - FACTORY OPTIONS AND ACCESSORIES 12.13.6 - Gas connections Optionally, a kit with all the fl ue gas accessories can be supplied: The gas connection must be made respecting the installation DN80 DN110 regulations in force, and sized to ensure the correct gas delivery to the burner.
  • Page 49 12 - FACTORY OPTIONS AND ACCESSORIES 12.13.10 - Boiler control panel ■ The first section of the condensate drain pipe, which is connected to the condensate outlet from the boiler (Ø 25 mm), must be fl exible pipe to avoid any contact with the discharge pipe.
  • Page 50 12 - FACTORY OPTIONS AND ACCESSORIES 12.13.11 - Hydraulic circuit ■ Circuit fi lling ■ Circuit emptying The charging system is connected to the boiler’s return line. In case of long unit stops, and forcibly if they happen in the Automatic fi...

  • Page 51: Warm Air Heater Module With Gas Burner

    12 - FACTORY OPTIONS AND ACCESSORIES 12.14 - Warm air heater module with gas burner - The PCH heater is a modulating type; the thermal power Natural or propane gas burner with modulating actuator, in accordance with the Gas Directive 2009/142/EC, installed inside output and, therefore, the thermal capacity (fuel consumption) a pre-assembly roofcurb.
  • Page 52 12 - FACTORY OPTIONS AND ACCESSORIES ■ Fuel If the heater is faulty and/or incorrectly operating, switch it off and do not attempt to repair it yourself, but contact our local Before starting up the heater, make sure that: Technical Service. - the gas mains supply data is compatible with the data stated All repairs must be carried out by using genuine spare parts.
  • Page 53 12 - FACTORY OPTIONS AND ACCESSORIES ■ Location The following image shows the location of the connection box “BOX8-QUE”. These roofcurb with integrated burner are designed to be coupled with an 50FF/FC unit (roof-top installation). Make sure they are not fi tted near areas where there is a risk of fi re (fl...
  • Page 54 12 - FACTORY OPTIONS AND ACCESSORIES 12.14.7 - Connections at the fl ue Important: The fl ue of the gas burner is not supplied with Type C53 the unit. Its design and installation is the responsibility of Sealed combustion circuit (type “C”) connected by means of its the installer and must comply with all the directives and own ducting split in two terminals which could end up in areas with regulations in force in the installation location.
  • Page 55 12 - FACTORY OPTIONS AND ACCESSORIES 12.14.9 - 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 56 12 - FACTORY OPTIONS AND ACCESSORIES 12.14.10 - Conversion of burner gas type Conversion to LPG Note: The heater with LPG is set up for G31 gas. If the unit runs on G30 instead, it is necessary to verify and possibly The gas burner is supplied already set for natural gas and with adjust settings for CO as shown in the table in paragraph...
  • Page 57 12 - FACTORY OPTIONS AND ACCESSORIES 12.14.12 - Operating cycle of the burner off the burner [E]; the fan continues to purge the combustion ■ Burner operation chamber, post-wash, for a preset length of time [F]. When the unit demands heat, the modulation PCB will start the Opening a contact (see electrical diagram) always causes the operation cycle.
  • Page 58 12 - FACTORY OPTIONS AND ACCESSORIES It is possible to select three operating modes for the burner: ■ Burner protection for low outdoor temperatures (optional) - Operation of the burner as one or two electrical heater stages With outdoor temperatures below (both option not compatible).
  • Page 59 Set Point and I/O menus available. Blocks caused by temperature (safety blocks) Entering the second password grants access to third level. • Excess air temperature This password must be requested directly to CARRIER Activation of safety due to lack of air circulation Manual reset technical service.

  • Page 60: Cooling Recovery Circuit (Ba And Bb Assemblies)

    12 - FACTORY OPTIONS AND ACCESSORIES 12.15 - Cooling recovery circuit (BA and BB assemblies) Models of 2 circuits (50FC 052 to 093): Thermodynamic circuit dedicated to the recovery of the extracted air energy, with independent and proportional control, adapted to the air renewal requirements in order to raise the COP and EER of the unit.

  • Page 61: Commissioning

    13 - COMMISSIONING 13.1 - Checks prior to commissioning Models 50FF/FC 020 to 047: Fan cover lifted (*) ■ 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 62: Possible Problems At Commissioning

    13 - COMMISSIONING 13.3 - Operational checks 13.1.1 - Control of the refrigerant charge ■ Each unit is shipped with an exact charge Check the unit operation by verifying the electronic control and R 410A of refrigerant for proper operation. the safety devices.

  • Page 63: Maintenance

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

  • Page 64: Servicing

    14 - MAINTENANCE Additional charge of the optional active dehumidifi cation: atmosphere. It is essential to keep the amount of lost refrigerant as low as possible by pumping the charge and isolating it in Active dehumidification is equipped with an additional another part of the system.

  • Page 65: Access To The Main Components

    14 - MAINTENANCE 14.3 - Access to the main components ■ Check that the drain is not clogged. ■ Cleaning of the pan can be done with water and non-abrasive 14.3.1 - Air coil detergent. ■ Check that the coil is free from dust and grease. ■...
  • Page 66 14 - MAINTENANCE 14.3.6 - Air fi lters 14.3.7 - Air fi lters in the recovery module ■ Depending on the installation conditions, the fi lter aspect must ■ The inside of the heat recovery unit module is accessed via the be examined to defi...
  • Page 67 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 68 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 69: 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 70: 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 72 CARRIER participates in the ECP programme for RT Check ongoing validity of certifi cate: www.eurovent-certifi cation.com Order No.: 10185, 12.2020. Supersedes order No.: 03.2020 Manufactured for CARRIER in Spain. Manufacturer reserves the right to change any product specifi cations without notice.

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