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Packaged rooftop cooling only / Heat pump and separated gas module option
50EN/EH

Refrigerant : R-410A

Cooling capacity : 90-280 kW

Heating capacity : 100-290 kW

Air flow : 18 000-46 000 m³/h

The 50EN/EH cooling units and heat pumps are compact, horizontal, and autonomous air to air units, rooftop-type design.

  • Packaged unit all in one
  • High efficiency
  • Silent operation
  • Configuration flexibility
  • Plug-fans with EC motor

  • 50EN Series: cooling units
  • 50EH Series: reversible heat pumps

General description

Packaged unit “all in one” with all components installed inside the unit.The unit is connected directly to an air distribution ductwork without additional elements or equipment, pipes, cables, etc. taking up no floor space at all. This design reduces the cost of installation, facilities connections and ensures reliable operation.
  • Electronic axial fans in the outdoor circuit
  • Electronic plugfans in the indoor circuit
  • Air coils
  • Hermetic scroll compressors
  • Electronic control with microprocessor
  • All units are tested and checked in the factory

Casing

  • Casing made of galvanized steel metal with polyester paint, white color RAL 7035
  • Thermal insulation 9 mm thick, with fire classification B-s3,d0 (M1)
  • Self-supporting frame

Outdoor circuit

  • Electronic EC axial fan(s) which adapt the rotation speed to the installation's requirements, thereby reducing electricity consumption, the sound level at partial charge and improving the unit’s average seasonal efficiency
  • Coil with copper pipes and aluminum fins

Indoor circuit

  • EC electronic supply plug-fans directly coupled with variable control speed and flow rate controller. Plug-fans with direct drive and variable speed offer advantages :
    • Elimination of friction losses during transmission thanks to the direct drive
    • Greater aeraulics efficiency of the rotor (reactive blades with an optimized profile), running at very high operating pressures
    • Greatly increased motor efficiency
    • Variable speed to ensure a constant supply air flow rate, independent of the filters clogging level
    • Measuring the flow rate
  • Reusable air filters, assembled on a frame
  • Coil with copper pipes and aluminum fins
  • Condensate drain pan

Cooling circuit

  • Hermetic scroll-type compressor(s), assembled over anti vibration mounts. Control of phase equilibrium and the direction of rotation
  • Crankcase heater
  • Thermostatic expansion valve with external equalization
  • Four-way cycle reversing valves (heat pump units)
  • Acid-resistant filters dryer
  • Cooling design based on 2-air volumes
carrier-50ENEH-rooftop-cooling-circuit

Protections

  • High and low pressure pressostats
  • Compressor discharge temperature control
  • Main door switch
  • Magnetothermic protection switches for the compressor(s) power line and fans motor
  • Automatic switch in the control circuit

Electrical cabinet

  • Complete and fully wired electrical panel. Insulated panel cover to prevent condensation. Forced ventilation of the electrical cabinet
  • Numeration of wired
  • Transformer for power supply without neutral in electrical panel
  • Main ground connection
  • Compressor and fan motor contacts
  • Machinery Directive 2006/42/EC (MD)
  • Electromagnetic Compatibility Directive 2014/30/EU (EMC)
  • Low Voltage Directive 2014/35/EU (LVD)
  • Pressure Equipment Directive 2014/68/EU (Category 2) (PED)
  • RoHS Directive 2011/65/EU (RoHS)
  • Eco-design Directive 2009/125/EC (ECO-DESIGN)
  • Energy Labelling Directive 2017/1369/EU (ECO-LABELLING)
  • Harmonized Standard: EN 378-2:2012 (Refrigerating systems and heat pumps - Safety and environmental requirements)

CARRIERrtc control

The CARRIERrtc control consists of a μPC MEDIUM control board, sensors, a pGD1 graphic terminal and a TCO user terminal (optional). This system uses a RS485 field-bus to manage additional components. A BMS card (optional) allows the control board to be connected to a centralised technical management system.

It also manages a local connection between units through a pLAN network (μPC MEDIUM Local Area Network), allowing data and information to be exchanged between units, for a maximum of 15 units.

Main functions
  • Selection of set-point and operating mode: Heating, Cooling, Auto, Ventilation
  • Continuous control of the operating parameters
  • Display of the values measured by the sensors
  • Compressors time delays
  • Defrosting management (in heat pump units)
  • Control of the supply air temperature
  • All-seasons operation via the condensation and evaporation pressure control
  • Set-point compensation based on the outdoor temperature
  • Hourly and weekly schedule
  • Fire protection
  • Diagnosis of faults and general alarm
Optional functions
  • External air damper for the renewal of fresh air, depending on the temperature of the mixed air or depending on the air quality sensor
  • Mixing box for thermal, enthalpic or thermoenthalpic freecooling
  • Cooling recovery circuit for renewing the air
  • Rotary heat exchanger
  • Auxiliary electrical heaters: two-stage with on/off control or single-stage with proportional control
  • Hot water coil with 3-way valve, with proportional or on/off control
  • Gas burner with proportional control
  • Humidifier with proportional or on/off control
  • Air flow rate controller (with centrifugal fans)
  • Clogged filter pressostat
  • Smoke detection station
  • Air quality sensor for measuring CO2 and/or volatile compounds
  • Refrigerant leak detector
  • Energy meter and and calculation of the cooling and heating capacities
  • Zoning into 2 areas with dampers

pGD1 terminal

This graphic terminal, installed on the electric panel of the machine, allows :
  • The initial programming of the unit
  • Modification of operating mode
  • Unit ON / OFF
  • Selection of the operating mode
  • Setting of set-points
  • On-screen display of controlled variables and sensor values measured
  • On screen display of active alarms and historical records of alarms
carrier-graphic-terminal

TCO user terminal (optional for remote control)

The TCO user terminal, for remote control, allows:
  • Modification of some operating parameters
  • Unit ON / OFF
  • Selection of the operating mode and setting of set-points
  • On-screen display some controlled variables and probe values
  • On-screen display of alarms codes
carrier-user-terminal

Supervision solutions

pCO Web
  • Solution for the management and supervision of a single unit if this incorporates the Ethernet pCO Web card
PlantWatchPRO3
  • Solution designed for the monitoring of small and medium-size installations, capable of manage up to 30 units
  • Available in two versions: panel and wall
  • Includes: 7 “ touch display, buzzer for notifications, 1 USB port and 1 SD card slot for downloading reports, charge devices models and applying service packs
PlantVisorPRO2
  • Solution for the management and supervision of air-conditioning installations with up to 300 units
  • Advanced monitoring and maintenance functions
  • Allows zones and groups to be created
  • Energy meters can be integrated to monitor the installation electricity consumption
  • Two versions available:
    • Box: comprised of CPU and, optionally, by monitor and keyboard
    • Touch: this includes CPU and touchscreen in a single device

Outdoor environment

  • Temperature
    • Thermal and acoustic insulation 50 mm thick, with fire classification Euroclase A2-s1, d0 (M0)
    • Anti-freeze protection for low outdoor temperatures
  • Corrosion
    • Coils (outdoor, indoor and/or auxiliary) with copper pipes and copper fins
    • INERA® coils (outdoor, indoor and/or auxiliary) with copper pipes and fins of an aluminum alloy of high performance and great resistance to the corrosion
    • Coils (outdoor, indoor and/or auxiliary) with copper pipes and aluminum fins with polyurethane and Blygold® coating
    • Condensate drain pan for the indoor circuit in stainless steel
  • Humidity
    • Stop-drop in the indoor air coil (optional from model 415 to 960 and included in models 1100 and 1200)
    • Stop-drop at the fresh air intake
    • Tropicalized components on the electrical cabinet with protective varnish: control board, cards and terminals
    • Tropicalized motors and fans (please consult)

Comfort / heating options

  • Hot water auxiliary coil, with three-way valve. This option always incorporates an anti-freeze thermostat as safety system
  • Auxiliary electrical heaters, with two power stages and on/off control, for assembly and connection inside the unit
  • Natural or propane gas burner with modulating actuator, in accordance with the Gas Directive 2009/142/EC

Comfort / indoor air quality options

  • Air quality sensor for installation in the environment or duct-mounted to enable measuring CO2 and/or volatile compounds
  • Dual-stage of opacimetric folded filters

Energy savings / recovery options

  • Free-cooling, 3 different options :
    • Thermal, by comparing the temperatures
    • Enthalpic, by comparing the enthalpies
    • Thermoenthalpic, by comparing the enthalpies and correcting for temperature
  • Active recovery: Thermodynamic circuit dedicated to recovery energy from extracted air flow
  • Passive recovery using heat recovery exchanger to transfer energy from the extracted air flow to the fresh air

Safety options

  • Soft starter of the optional centrifugal supply air and/or return air fans
  • Differential pressure switch to detect clogged filters
  • Differential pressure switch for checking the air flow, with centrifugal fan
  • Smoke detecting station in accordance with the NF S 61-961 standard
  • Refrigerant leak detector

Installation options

  • Axial 2-speed outdoor fan(s) directly coupled to the motor. Important: models 840 1200 with these fans do not comply with ErP regulation (only for countries outside the European Union).
  • Centrifugal supply air and/or return air fans, coupled by pulleys and belts. Important: centrifugal supply fans do not comply with ErP regulation (only for countries outside the European Union).
  • Control of the over-pressure with the MC0, MRC0, MC1 and MRC1 assemblies
  • Standardized pre-assembly roofcurbs made of galvanized steel panelling with polyester paint, thermally insulated. Adjustable height
  • Anti-vibration mounts made of rubber
  • Adaptation roofcurbs for the replacement of existing units on site
  • Condensate drain pan for the outdoor circuit in galvanized steel
  • Protective grille for the outdoor coil
  • Hail guard protective grille for the outdoor coil

Electrical cabinet options

  • Electrical power supply with neutral
  • High performance phase monitoring relay, which allows to adjust the protection settings
  • Energy meter for monitoring of the power consumption of the installation
  • Energy meter and cooling and heating capacities measurement
  • 50EN Series: cooling units
  • 50EH Series: reversible heat pumps

General description

Packaged unit “all in one” with all components installed inside the unit.The unit is connected directly to an air distribution ductwork without additional elements or equipment, pipes, cables, etc. taking up no floor space at all. This design reduces the cost of installation, facilities connections and ensures reliable operation.
  • Electronic axial fans in the outdoor circuit
  • Electronic plugfans in the indoor circuit
  • Air coils
  • Hermetic scroll compressors
  • Electronic control with microprocessor
  • All units are tested and checked in the factory

Casing

  • Casing made of galvanized steel metal with polyester paint, white color RAL 7035
  • Thermal insulation 9 mm thick, with fire classification B-s3,d0 (M1)
  • Self-supporting frame

Outdoor circuit

  • Electronic EC axial fan(s) which adapt the rotation speed to the installation's requirements, thereby reducing electricity consumption, the sound level at partial charge and improving the unit’s average seasonal efficiency
  • Coil with copper pipes and aluminum fins

Indoor circuit

  • EC electronic supply plug-fans directly coupled with variable control speed and flow rate controller. Plug-fans with direct drive and variable speed offer advantages :
    • Elimination of friction losses during transmission thanks to the direct drive
    • Greater aeraulics efficiency of the rotor (reactive blades with an optimized profile), running at very high operating pressures
    • Greatly increased motor efficiency
    • Variable speed to ensure a constant supply air flow rate, independent of the filters clogging level
    • Measuring the flow rate
  • Reusable air filters, assembled on a frame
  • Coil with copper pipes and aluminum fins
  • Condensate drain pan

Cooling circuit

  • Hermetic scroll-type compressor(s), assembled over anti vibration mounts. Control of phase equilibrium and the direction of rotation
  • Crankcase heater
  • Thermostatic expansion valve with external equalization
  • Four-way cycle reversing valves (heat pump units)
  • Acid-resistant filters dryer
  • Cooling design based on 2-air volumes
carrier-50ENEH-rooftop-cooling-circuit

Protections

  • High and low pressure pressostats
  • Compressor discharge temperature control
  • Main door switch
  • Magnetothermic protection switches for the compressor(s) power line and fans motor
  • Automatic switch in the control circuit

Electrical cabinet

  • Complete and fully wired electrical panel. Insulated panel cover to prevent condensation. Forced ventilation of the electrical cabinet
  • Numeration of wired
  • Transformer for power supply without neutral in electrical panel
  • Main ground connection
  • Compressor and fan motor contacts
  • Machinery Directive 2006/42/EC (MD)
  • Electromagnetic Compatibility Directive 2014/30/EU (EMC)
  • Low Voltage Directive 2014/35/EU (LVD)
  • Pressure Equipment Directive 2014/68/EU (Category 2) (PED)
  • RoHS Directive 2011/65/EU (RoHS)
  • Eco-design Directive 2009/125/EC (ECO-DESIGN)
  • Energy Labelling Directive 2017/1369/EU (ECO-LABELLING)
  • Harmonized Standard: EN 378-2:2012 (Refrigerating systems and heat pumps - Safety and environmental requirements)

CARRIERrtc control

The CARRIERrtc control consists of a μPC MEDIUM control board, sensors, a pGD1 graphic terminal and a TCO user terminal (optional). This system uses a RS485 field-bus to manage additional components. A BMS card (optional) allows the control board to be connected to a centralised technical management system.

It also manages a local connection between units through a pLAN network (μPC MEDIUM Local Area Network), allowing data and information to be exchanged between units, for a maximum of 15 units.

Main functions
  • Selection of set-point and operating mode: Heating, Cooling, Auto, Ventilation
  • Continuous control of the operating parameters
  • Display of the values measured by the sensors
  • Compressors time delays
  • Defrosting management (in heat pump units)
  • Control of the supply air temperature
  • All-seasons operation via the condensation and evaporation pressure control
  • Set-point compensation based on the outdoor temperature
  • Hourly and weekly schedule
  • Fire protection
  • Diagnosis of faults and general alarm
Optional functions
  • External air damper for the renewal of fresh air, depending on the temperature of the mixed air or depending on the air quality sensor
  • Mixing box for thermal, enthalpic or thermoenthalpic freecooling
  • Cooling recovery circuit for renewing the air
  • Rotary heat exchanger
  • Auxiliary electrical heaters: two-stage with on/off control or single-stage with proportional control
  • Hot water coil with 3-way valve, with proportional or on/off control
  • Gas burner with proportional control
  • Humidifier with proportional or on/off control
  • Air flow rate controller (with centrifugal fans)
  • Clogged filter pressostat
  • Smoke detection station
  • Air quality sensor for measuring CO2 and/or volatile compounds
  • Refrigerant leak detector
  • Energy meter and and calculation of the cooling and heating capacities
  • Zoning into 2 areas with dampers

pGD1 terminal

This graphic terminal, installed on the electric panel of the machine, allows :
  • The initial programming of the unit
  • Modification of operating mode
  • Unit ON / OFF
  • Selection of the operating mode
  • Setting of set-points
  • On-screen display of controlled variables and sensor values measured
  • On screen display of active alarms and historical records of alarms
carrier-graphic-terminal

TCO user terminal (optional for remote control)

The TCO user terminal, for remote control, allows:
  • Modification of some operating parameters
  • Unit ON / OFF
  • Selection of the operating mode and setting of set-points
  • On-screen display some controlled variables and probe values
  • On-screen display of alarms codes
carrier-user-terminal

Supervision solutions

pCO Web
  • Solution for the management and supervision of a single unit if this incorporates the Ethernet pCO Web card
PlantWatchPRO3
  • Solution designed for the monitoring of small and medium-size installations, capable of manage up to 30 units
  • Available in two versions: panel and wall
  • Includes: 7 “ touch display, buzzer for notifications, 1 USB port and 1 SD card slot for downloading reports, charge devices models and applying service packs
PlantVisorPRO2
  • Solution for the management and supervision of air-conditioning installations with up to 300 units
  • Advanced monitoring and maintenance functions
  • Allows zones and groups to be created
  • Energy meters can be integrated to monitor the installation electricity consumption
  • Two versions available:
    • Box: comprised of CPU and, optionally, by monitor and keyboard
    • Touch: this includes CPU and touchscreen in a single device

Outdoor environment

  • Temperature
    • Thermal and acoustic insulation 50 mm thick, with fire classification Euroclase A2-s1, d0 (M0)
    • Anti-freeze protection for low outdoor temperatures
  • Corrosion
    • Coils (outdoor, indoor and/or auxiliary) with copper pipes and copper fins
    • INERA® coils (outdoor, indoor and/or auxiliary) with copper pipes and fins of an aluminum alloy of high performance and great resistance to the corrosion
    • Coils (outdoor, indoor and/or auxiliary) with copper pipes and aluminum fins with polyurethane and Blygold® coating
    • Condensate drain pan for the indoor circuit in stainless steel
  • Humidity
    • Stop-drop in the indoor air coil (optional from model 415 to 960 and included in models 1100 and 1200)
    • Stop-drop at the fresh air intake
    • Tropicalized components on the electrical cabinet with protective varnish: control board, cards and terminals
    • Tropicalized motors and fans (please consult)

Comfort / heating options

  • Hot water auxiliary coil, with three-way valve. This option always incorporates an anti-freeze thermostat as safety system
  • Auxiliary electrical heaters, with two power stages and on/off control, for assembly and connection inside the unit
  • Natural or propane gas burner with modulating actuator, in accordance with the Gas Directive 2009/142/EC

Comfort / indoor air quality options

  • Air quality sensor for installation in the environment or duct-mounted to enable measuring CO2 and/or volatile compounds
  • Dual-stage of opacimetric folded filters

Energy savings / recovery options

  • Free-cooling, 3 different options :
    • Thermal, by comparing the temperatures
    • Enthalpic, by comparing the enthalpies
    • Thermoenthalpic, by comparing the enthalpies and correcting for temperature
  • Active recovery: Thermodynamic circuit dedicated to recovery energy from extracted air flow
  • Passive recovery using heat recovery exchanger to transfer energy from the extracted air flow to the fresh air

Safety options

  • Soft starter of the optional centrifugal supply air and/or return air fans
  • Differential pressure switch to detect clogged filters
  • Differential pressure switch for checking the air flow, with centrifugal fan
  • Smoke detecting station in accordance with the NF S 61-961 standard
  • Refrigerant leak detector

Installation options

  • Axial 2-speed outdoor fan(s) directly coupled to the motor. Important: models 840 1200 with these fans do not comply with ErP regulation (only for countries outside the European Union).
  • Centrifugal supply air and/or return air fans, coupled by pulleys and belts. Important: centrifugal supply fans do not comply with ErP regulation (only for countries outside the European Union).
  • Control of the over-pressure with the MC0, MRC0, MC1 and MRC1 assemblies
  • Standardized pre-assembly roofcurbs made of galvanized steel panelling with polyester paint, thermally insulated. Adjustable height
  • Anti-vibration mounts made of rubber
  • Adaptation roofcurbs for the replacement of existing units on site
  • Condensate drain pan for the outdoor circuit in galvanized steel
  • Protective grille for the outdoor coil
  • Hail guard protective grille for the outdoor coil

Electrical cabinet options

  • Electrical power supply with neutral
  • High performance phase monitoring relay, which allows to adjust the protection settings
  • Energy meter for monitoring of the power consumption of the installation
  • Energy meter and cooling and heating capacities measurement

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