Klimageräte

HKN/D/W

Klimageräte für perfektes Raumklima in der Gebäudetechnik

Produktlinien (Standard HFKW):

(CO₂)

(Kälteträger)

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 - 16 kW cooling capacity or 39 kW heating capacity
Efficient use in heating applications (HP)

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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.

The HKN/D is used in these areas of application

Energy technology

During the generation of energy, waste heat is generated that has to be dissipated or reused. Efficient and robust heat exchanger systems are indispensable for fail-safe energy management. Heat exchangers can be manufactured by Roller in any individual design.
We will be happy to advise you on the design of your specific heat exchanger.

HVAC industry

Today, a multitude of different applications such as server rooms, clean rooms, medical facilities and practices, shops, offices, greenhouses, and so on, place specific demands on building technology.
The right temperature, air quality and air movement play an important role. Here, with individual heat exchangers, we offer suitable solutions for a wide range of tasks.
The robust HKN air-conditioning unit stands for barely noticeable conditioning and a comfortable indoor climate with high energy efficiency.

Energy technology
HVAC industry

Maximum power in one unit

With a cooling capacity of 16KW and a heating capacity of 39KW in one housing, the HKN 1400 is a very interesting design for production halls and warehouses, workshops, laboratories and similar applications where large heat capacities must be reliably supplied or dissipated.

Minimal housing depth for residential and commercial use

The HKN is also perfectly suited for residential and commercial use. Thanks to very slim dimensions, particularly quiet, economical and efficient EC fan technology, the unit is one of the most efficient in its class.

Now also as a wall-mounted fan coil!

The proven HKN climate control fan coils is now available as a new wall-mounted version HKNW with downside air inlet. This further development brings a fresh, new look and is characterized for high comfort in offices, whisper-quiet operation in laboratories and robustness in workshops. For heating and/or cooling operation; chilled water or refrigerant and even CO₂.

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?

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)
HKNW: Wall hanging unit with or without housing (vertical installation, size 200 - 700)
HKNH: Ceiling unit with or without housing (horizontal installation and air inlet, size 200 - 700)

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: Cooling with coolant

General

Cooling capacity from 1.1 – 16 kW and heating capacity from 2 – 39 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

Office air conditioning – HKN - Fischer

Fischer Kälte-Klima's new building in Kernen im Remstal (near Stuttgart) is designed to meet the highest standards of energy efficiency, sustainability and indoor climate quality.
The heart of its building technology is a two-stage NH3 heat pump, which is separated from the heat transfer system (water) in the building by a highly efficient plate heat exchanger.

Extremely quiet Roller HKN air-conditioning fan coil units with a 4-way valve installed in the window parapets of each office allow not only continuous precise adjustment of the individual room temperature, but also rapid cooling or heating when required. The selected 4-pipe principle in combination with the intelligent control system enables simultaneous cooling or heating operation in different rooms of the building, depending on requirements.

Application	Building air conditioning
Address	Germany / Kernen im Remstal
Fluid	Water
Product	HKN

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.

Application	Greenhouse
Address	Bergen/Lochow / Germany
Fluid	Brine
Product	HKN in greenhouse version

Passenger climate - HKN - Cooltherm

The Barefoot Boat by Til Schweiger is a joint project involving the actor and Danube shipping 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 just 122 mm deep HKN air conditioning units from Roller. In order to achieve particularly quiet operation in sound-sensitive areas such as the passenger cabins or the bar, these fan coils are equipped with very quiet fans with variable-speed EC drive technology. The condensate produced during cooling operation is collected by special, raised condensate trays in ship's design with two drains, which reliably drain off the water even when the ship sways.

Application	HVAC
Address	Passau / Germany
Fluid	Water
Product	36 x HKN 50 EC (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.

Application	Building air conditioning
Address	Günzburg / Germany
Fluid	Water
Product	HKN 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.

Application	Greenhouse
Address	Gatersleben / Germany
Fluid	Brine
Product	HKN in greenhouse version

Documentation

Roller Product Highlights 2023/2024 - Eng

14. September 2023

2 MB

Walter Roller Produkte

Product range

28. September 2021

2 MB

Klimageräte HKN

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

23. February 2021

334 KB

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