Skip to main content

Air conditioning units

 

Air conditioning units for perfect room conditions in buildings

HKN/D

HFC | CO2 | Water | Brine

  • Low-noise air conditioning units for offices, hotel rooms, businesses and private residences
  • Wide range of applications in technical building services 
  • Maximum performance in a single unit - 15 kW cooling capacity or 36 kW heating capacity 
  • 6 different circuit types for maximum versatility

 

REQUEST                  CALCULATE

Individual climate thanks to great diversity

A wide range of tailored air conditioning solutions is available for demanding applications in buildings. Whether it is used in public or private areas, in small commercial firms or large industrial companies, with the HKN you get a robust, timeless heating and cooling system which is available either with a housing or as a built-in unit. With a wide range of accessories as well as control and corrosion protection options, the unit can easily cope with demanding air conditioning requirements.

Product benefits

Your advantages at HKN/D

Extremely high performance

in a single unit: 15 kW cooling capacity or 36 kW heating capacity in a single unit (HKN/DI 1400)

Compact, energy-efficient design:

With a minimum installation depth of just 136 mm, the HKN/D 50 has a 7 kW heating capacity

Attractive designer housing

in brushed stainless steel or with a high-gloss finish (from size 200)

Use with CO2 (60 or 80 bar)

for cooling adjacent sales and office areas with existing CO2 composite systems

Switch cabinet with sufficient space

and easy access on the side of the unit (HKN/D 200-1400) or on the front over the entire width with size 10-50

Energy-saving, extremely low-noise EC fan:

EC cross-flow fan with infinitely adjustable air volume flow (0-10 V) (size 10-50)

4-way valves for type 1 dual circuit heat exchanger:

Cooling with cold water, heating with warm water. Here on HKN 200- 700 with MD15-HE-RO constant actuator from Kieback&Peter.

Ventilation valves

easily accessible via the removable air outlet grilles

HKN with CO2 up to 80 bar

 
Why not use your CO2 compound system for cooling adjacent business facilities?
 
More in this video!

 

 

Features

All product advantages at a glance

 

Unit types

  • HKN:       Standing unit with or without housing (vertical installation)
  • HKN/I:     Standing unit with or without housing, industrial design with increased air capacity (from size 800)
  • HKN/L:    Standing unit with or without housing, low-noise design (from size 800)
  • HKN/D:    Ceiling unit with or without housing (horizontal installation)
  • HKN/DI:   Ceiling unit with or without housing, industrial design with increased air capacity (from size 800)
  • HKN/DL:  Ceiling unit with or without housing, low-noise design (from size 800)

    Circuit types

    • Version 1: Dual circuit heat exchanger: Cooling with cold water, heating with warm water, Heat exchanger type 2
    • Version 2: Dual circuit heat exchanger: Cooling with coolant, heating with warm water, Heat exchanger type 1 - including frost protection thermostat.
    • Version 3: Single circuit heat exchanger: Cooling with cold water, heating with electric heating - (not with HKN/D 10- 50)
    • Version 4: Single circuit heat exchanger: Cooling with coolant, heating with electric heating (not with HKN/D 10- 50)
    • Version 5: Single circuit heat exchanger: Cooling with cold water or heating with warm water, via changeover
    • Version 7: Single circuit heat exchanger: Cooling with coolant
    • Version 8: Single circuit heat exchanger: Heating with coolant (e.g. heat pump operation)

    General

    • Cooling capacity from 1.1 – 15.6 kW and heating capacity from 2 – 18.9 kW
    • Housing made from Sendzimir galvanized steel sheeting, powder-coated (white similar to RAL 9010) for HKN/HKND
    • Soundproofing on basic unit and housing as standard for all designs 
    • Hinged air inlet grille (for changing filter) and removable air outlet grilles
    • EC cross-flow fan as standard on sizes HKN/HKND 10 to 50
    • Either AC or EC fans from size 200
    • Housing with removable side parts (optional from size 200)
    • Two pre-configured unit designs: (I)ndustrial design with more powerful fan and (L)ow-noise design with reduced noise level (from size 800)

     

    Unit design

    • Housing in white, similar to RAL 9010
    • Attractive designer housing in brushed stainless steel or with a high-gloss finish (from size 200)
    • Housing with removable side parts (optional from size 200)
    • Housing made from Sendzimir galvanized steel sheeting with impact-resistant, scratchproof powder coating 

    Valve and control options

    • Numerous valves and control devices can be installed at the factory
    • 2-way or 3-way valves - factory installed for operation with water
    • Customer-specific controllers can be installed on request

    Energy efficiency

    • Energy-saving, extremely low-noise EC cross-flow fan (size 10-50)
    • Stepless air volume flow adjustment via external controller (0 - 10 V) with EC fans or 3-step control with optional adapter board
    • Heat exchanger optimized for high thermal performance
    • High-performance heat exchanger with low internal volume 

    Installation & inspection

    • Easy filter replacement resp. cleaning via filter frame (HKN/D 10-50)
    • Air filter is made of polyurethane and is washable (HKN/D 10-50)
    • Ventilation easily accessible in the air outlet
    • Easy access via removable side parts (optional)
    • Sufficient space for easy installation of the control valves
    • Control valve actuating drive with integrated opening degree display 
    • Electric components are wired to terminals

    Corrosion protection

    • Housing made from Sendzimir galvanized steel sheeting with impact-resistant, scratchproof powder coating 
    • Corrosion protection for heat exchanger made from lacquered aluminium fins and tin-coated copper tubes
    • Corrosion protection for heat exchanger with full copper tubes, fins and end plates.
    • Additional coating for the sheet metal parts on the basic unit on request
    • All corrosion protection variants at a glance!

    Accessories

    Find suitable accessories for the HKN/D

    2-way valve

    and thermal actuating drive (type 1)

    3-way valve and actuating drive

    on the warm water circuit. Cooling circuit direct expansion sealed air-tight with protective caps (type 2)

    Switch cabinet

    with Kieback&Peter RCN 155 L- RO controller and RBW 305 room control unit

    EVD-ice:

    Electronic e-valve and superheat controller for efficient, safe operation and quick start-up (optional)

    Air filter

    to protect the heat exchanger made from polyurethane (HKN/D 10 - 50) or polyester (HKN/D 200 - 1400)

    Air-side connections

    Connection option to on-site air ducting.

    Metal Filter

    Washable wire mesh with very high separation efficiency against oil mist

    Cover plates

    Rear cover for ceiling units and floor units (e.g. in front of windows)

    Other accessories

    • Condensation water pump to bridge a height difference of up to 2 m and 10 m length
    • Safety thermostat or frost protection thermostat
    • Additional electric heating with up to two heating rods in the air discharge after the heat exchanger (size 200 - 700)
    • Operational and fault signal for EC fans
    • 3 heating rods mounted in the direction of the air before the heat exchanger (size 800 - 1400)
    • Additional Class G4 and M5 filters available on request
    • Board for EC radial fan (3 steps)
    • Corrosion protection for heat exchanger made from lacquered aluminium fins and tin-coated copper tubes 

    References

    Greenhouse - HKN - KWS Saat

    The climatic conditions in greenhouses are very different from those elsewhere. Fully glazed greenhouses use the natural sunlight which must not be reduced by ceiling mounted units. KWS Saat Lochow in Bergen/Germany uses Roller HKN wall-mounted air conditioning units with selected material properties and features. These require particularly high corrosion protection given the high air humidity and the aggressive fertilizers and pesticides used.

    ApplicationGreenhouse
    AddressBergen/Lochow / Germany
    FluidBrine
    ProductHKN in greenhouse version

    Passenger climate - HKN - Cooltherm

    The Barefoot Boat by Til Schweiger is a joint project involving the actor and Donauschifffahrt Wurm & Noé: when it comes to ensuring pleasant temperatures with a cooling and heating mode in the passenger rooms, the company Cooltherm relies on the particularly quiet HKN air conditioning units from Roller. Just 122 mm deep, they feature EC fans and have a special ship's design.

    ApplicationHVAC
    AddressPassau / Germany
    FluidWater
    Product36 x HKN50EC (ship version)

    Office air conditioning - HKN - Kelvin

    The company Kelvin ABT GmbH in Günzburg fitted an air conditioning system for cooling and heating in its office building as part of a renovation project. The particularly compact and quiet HKN 50 EC air conditioning units from Roller ensure pleasant room conditions while Roller's HL 050/3 heat pump evaporator functions as an evaporator or condenser for the reversible heat pump.

    ApplicationBuilding air conditioning
    AddressGünzburg / Germany
    FluidWater
    ProductHKN 50 EC

    Greenhouse - HKN - Leipniz-Institut

    In order to carry out plant research in greenhouses, defined and reproducible climatic conditions (cooling, heating, dehumidification) are essential. The air must be completely draught-free so that sensitive plants are not stressed or even damaged. The high humidity, fertilizers and pesticides mean that special corrosion protection measures are necessary. At the Leibniz Institute for Plant Genetics and Plant Research in Gatersleben, Roller's HKN air condition units were used in conjunction with pure copper fins and powder-coated drip pans.

    ApplicationGreenhouse
    AddressGatersleben / Germany
    FluidBrine
    ProductHKN in greenhouse version

    Documentation

    Klimageräte HKN

    HKN/D 10-50 EC
    HKN/D/I/L 200-1400 (EC)

    Technical data

    All important technical data at a glance

    Product name HKN/D 10 - 50 EC HKN/D 200 - 700 (EC) HKN/D L 800 -1400 (EC) HKN/D I 800- 1400 (EC)
    Nominal cooling capacity 0,3 - 4,23 kW 1,03 - 6,86 kW 2,28 - 13,55 kW 3,42 - 16,07 kW
    Nominal heating capacity 0,6 - 7,87 kW 2,15 - 14,81 kW 4,55 - 30,09 kW 7,11 - 36,64 kW
    Air volume 35 - 640 m³/h 150 - 1120 m³/h 310 - 2380 m³/h 500 - 3050 m³/h
    Sound pressure level (at 1 m) 22,4 - 50,1 dB(A) 18 - 50 dB(A) 20 - 50 dB(A) 32 - 57 dB(A)
    Tube system (mm) 25x21,65 mm / staggered 25x21,65 mm / staggered 40x35 mm / staggered 40x35 mm / staggered
    Number of fans 1 1 - 2 1 - 5 1 - 5
    Fan type EC-Crossflow AC o. EC / Radial AC o. EC / Radial AC o. EC / Radial
    Fan steps Stepless adjustable 1 - 5 or stepless adjustable 1 - 5 or stepless adjustable 2 - 5 or stepless adjustable
    Fin spacing 2,4 mm 2,4 mm 2,4 mm 2,4 mm
             

     


    How can we help you?

    We consult you competently and comprehensively!

    Make a concrete enquiry now!

    Tel.: +49 (0) 7156 / 2001-21
    florian.reichelt@walterroller.de