Modular compact heat pump
50NI

• 90, 120, 160 and 180: 1 circuit and 2 compressors
• 200, 240, 280, 320, 360, 420 and 485: 2 circuits and 4 compressors

General description

• Hermetic scroll compressors
• Tandem configuration
• Plug-fan EC for indoor and outdoor circuits
• 2 modules: outdoor module and indoor module for building work installation as compact version or split version
• Casing made of galvanized steel metal with polyester paint, white color RAL 7035
• All units are tested and checked in the factory

Outdoor module

• EC electronic supply plug-fans directly coupled with variable control speed and flow rate controller.
• Condensate drain pan

• Hermetic scroll-type compressor(s), with tandem design assembled over anti vibration mounts. Control of phase equilibrium and the direction of rotation
• Crankcase heater
• Thermostatic expansion valve with external equalization (heat pump units)
• Four-way cycle reversing valves (heat pump units)
• Suction accumulator, anti-acid dehydrating filter(s), liquid receiver(s)
• Filling and service valves for compact version
• Possibility of installation of modules separately, with filling and service valves
• Cooling connections for welding

• Complete and fully wired electric panel. Insulated panel cover to prevent condensation
• Transformer for power supply without neutral included in the electrical panel
• Main ground connection
• Compressor(s) and fan(s) motor contacts

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

Indoor module

• Coil with copper pipes and fins of an aluminum alloy
• EC electronic supply plug-fans directly coupled with variable control speed and flow rate controller
• Reusable air filters, assembled on a frame
• Condensate drain pan

• Thermostatic expansion valve(s) with external equalization

• Main door switch

• 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 2010/30/EU (ECO-LABELLING)
• Harmonized Standard: EN 378-2:2012

CARRIERrtc control

The CARRIERrtc control consists of a μPC MEDIUM control board, sensors, a pGD1 graphic terminal and a TCO user terminal (optional).

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

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

TCO user terminal (optional)

• Switch the unit ON / OFF
• Select the operating mode
• Adjust the set-points
• Display the installation’s temperatures and humidity, outdoor temperature, supply air temperature, CO2 sensor and opening of the outdoor damper
• Display alarms codes

CARRIERrtc medium control (optional)

Electronic module with microprocessor comprised of a control board and a TCO.

Outdoor environment

• Corrosion
  • Coil with copper pipes and copper fins
  • INERA^® coil with copper pipes and fins of an aluminum alloy, of high performance and great resistance to the corrosion
  • Coil with copper pipes and aluminum fins with polyurethane and Blygold^® coating
• Humidity
  • Tropicalized electric panel
  • Tropicalized motors and fans (please consult)

Installation

• Anti-vibration mounts made of rubber
• Service valves for cooling connections
• Oil separator for cooling connections with maximum equivalent length of the cooling line greater than 50 meters, option only available when the units are supplied in 2 modules, outdoor module and indoor module for building work installation as split version
• Position of air supply of the outdoor unit:
  • Side: supply by default
  • Upper: only available when the units are supplied for building work installation as split version
• Air coil protection grille
• Gravimetric filters in the return air

Acoustic

• Acoustic insulating cover for compressor

Electric panel

• Electrical power supply with neutral
• Energy meter for monitoring of the power consumption of the installation (with CARRIERrtc control)

Outdoor environment

• Humidity
  • Stop-drop in the indoor air coil
  • Stop-drop in the outdoor air intake
• Corrosion
  • Coil with copper pipes and copper fins
  • INERA^® coil with copper pipes and fins of an aluminum alloy, of high performance and great resistance to the corrosion
  • Coil with copper pipes and aluminum fins with polyurethane and Blygold^® coating
  • Condensate drain pan in stainless steel.

Comfort / heating options

• Hot water auxiliary coil, with three-way valve. Two options:
  • Nominal coil for heating in cooling-only units
  • Auxiliary coil for heating in heat pump units
• Auxiliary electrical heaters, air flow controller included

Comfort / indoor air quality options

• Filtration of the supply air
• Air quality probe for installation in the environment or in duct to enable measuring CO2 and/or volatile compounds (with CARRIERrtc control)

Security

• Soft starter of the supply and/or return centrifugal fans which prolongs the set time mainly aimed at installations with cloth ducts
• Differential pressostat for the detection of clogged filters
• Differential pressostat for control of air flow
• Smoke detecting station in accordance with the NF S 61-961 standard
• Refrigerant leak detector (with CARRIERrtc control)

Installation

• Anti-vibration mounts made of rubber
• Centrifugal fan with belts and pulleys for indoor module (only for models 240 to 360)
• Position of supply and/or return of the indoor unit air
• Assemblies with mixing box with 2 motorized damper for air renewal and free-cooling