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Selected references in air conditioning

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.

ApplicationBuilding air conditioning
AddressGermany / Kernen im Remstal
FluidWater
ProductHKN

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

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.

ApplicationHVAC
AddressPassau / Germany
FluidWater
Product36 x HKN 50 EC (ship version)

Snow Paradise - LK - Klafs

One of the most fascinating cooling experiences can be enjoyed by discerning sauna guests all over the world in so called snow paradies: These winter landscapes are formed with rocks and crevasses and offer a room temperature of -10°C for cooling off after a sauna session.

A step into the winter landscape does not only help to cool off the body, but also to quickly regain the normal oxygen level of the lungs. Roller heat exchangers are also used here to produce the finest powder snow, which can be used to rub off the skin and thus contribute to quite an intense experience.

ApplicationWellness
AddressSchwäbisch Hall / Germany
FluidHFC
ProductLK

Replica - LE - V-shape Re-cooler

Our customer of this heat exchanger needed a short-term replacement of his V-shaped recooler. In his system, this sprayed recooler, consisting of two registers arranged in mirror image, had become leaky due to corrosion and was to be replaced exactly as it had been. Thus, a replica with hydraulic branching/distribution of the media flow and hydrophilic coated fins, which allows the water of the wetted heat exchanger to flow off more easily, was created in the closest possible match to the sample supplied.

The original sample provided to us is available to us as a technical specification in terms of dimensions, pipe geometry, etc. and is usually returned to the customer with the replica unit as proof in a sturdy wooden box. Often there are still various add-on parts on the samples, which may be reused on site.

ApplicationAir conditioning
AddressGermany / Ingelheim on the Rhine
FluidWater
ProductLE - Special design

Replica - LE/LK - Air handling unit

Cut or in one piece? The task was quite clear: in the several-year old air-handling unit, the original heat exchangers were leaking due to corrosion and had to be replaced. However, the corridor next to the ventilation system is so narrow that a 1:1 replacement is impossible. So, what to do? The old heat exchangers can only be sawn up and taken out piece by piece. The solution for the new heat exchangers is to insert exact-fit heat exchanger modules that are piped in the AHU and hydraulically connected.

ApplicationBuilding technology
AddressGermany
Fluid
ProductLE / LK

 


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