Unit Description REMKO chilled water air-conditioning systems consist of an outer part ready which is ready to be connected, the air-cooled chiller (REMKORKWINOX) and one or more inner units (cold water consumers: REMKO KLT, WLT, DKT and FLG). All components required for cooling are located in the outer part. A hermetically closed cooling cycle in the chiller cools the water (or a brine made of water and antifreeze) to up to 5 °C via a plate heat exchanger. A circulation pump integrated either into the unit or in the storage module transports the cold water to the inner unit(s). To expand the water volume and extend the operating time, there is also a cold water tank with safety assembly either in the unit or located in the separate storage module. In the inner units, the air in the room is guided through the heat exchanger of the inner units by means of a quiet fan. When the air in the room leaves the unit, it is cooled, demoisturized and filtered. The water warms up and transports the heat absorbed from the room back to the outer part where it is passed along to the cooling cycle and the surroundings. The RKW1000, 1600 and 2600 INOX chillers all have a hydraulic system that is ready to be connected with a: ◊ Buffer tank ◊ Expansion vessel ◊ Safety valve ◊ Flow switch (differential pressure monitor) ◊ Manometer ◊ Ventilation ◊ Ventilation valve ◊ Drain valve The RKW 3600 INOX chiller models and higher can be easily equipped with a storage module that has an integrated hydraulic system, even at a later time. The system is regulated by means of a self-sufficient microprocessor that monitors system safety parameters and displays any malfunctions and monitors the set cold water temperature. A connection between the chiller and the cold water consumers is not required. To air condition rooms, an outer part is usually used in connection with the appropriate inner units (consumers). Here, there are various options available depending on how the unit is being used. In addition to standalone units, wall and ceiling chests, ceiling cassettes with various capacities can also be selected for mounting on intermediate walls. REMKO chillers are suitable for almost every type of application when used with the right consumers if the priority is cooling according to needs. Thanks to modern technology, the chillers require up to 80 % less coolant than other cooling and airconditioning systems. 4 The coolant is only necessary to cool the transport medium (water or brine). In conventional systems, the coolant is also required to transport the heat from the inner units (consumers) to the outer part. This makes another advantage of the REMKO chillers evident; they do not require coolant lines to the inner units (cold water consumers). All connection lines are designed to be water lines with the correct dimensions and heat insulation. Ideally, lines of an existing heating network can be integrated into the overall system. Proper use The outdoor parts have been designed and fitted exclusively for operation with REMKO indoor units belonging to the RKV series. The manufacturer assumes no liability for damage resulting from non-compliance with manufacturer specifications and legal requirements, or if modifications are made to the units. Safety Hints Extensive tests have been conducted on the material, functionality and quality of these units before they were shipped. These units may only be used in accordance with their intended purpose. Hazards may arise if the units are used improperly. Please make sure to follow these safety instructions. ◊ Make sure that personnel trained in the operation of the chiller check the unit for visible defects on the operating and safety mechanisms each time before putting it into operation. ◊ Before any work on the unit is performed, it must be disconnected from the power supply and secured against switching on! ◊ The unit may only be filled up and operated with water or a mixture of water and glycol (brine)! ◊ Ensure that the air intake and outlet openings are always clear of foreign objects. ◊ Do not insert any objects into the air intake and outlet openings. ◊ Do not install the unit close to heat sources. ◊ Make sure to maintain the safety zones described later in this manual! ◊ Do not use flammable gases such as spray paint in the direct vicinity of the units. ◊ Make sure that the unit is kept at a safe distance from flammable materials. ◊ Do not operate the unit if the atmosphere is contaminated by oil, sulfur or salt. ◊ If there is a cable remote control installed, make sure to protect it against moisture and direct or indirect sunlight!
◊ Operate the units exclusively within the permissible operating ranges. ◊ Do not expose the unit to direct streams of water High-pressure cleaners, etc. ◊ Protect the connection lines from being damaged, for example, by animals. ◊ The unit may only be connected to a correctly installed and grounded power supply. ◊ Never open the unit housing. There may cause an electric shock. ◊ Operate the unit only when assembled and for their intended purpose. Keep in mind that it is dangerous to remove covers protective grilles, etc., during operation; this can lead to uncontrolled operating situations. ◊ Never operate the unit in rooms susceptible to explosions. The units are also not suitable for operation in rooms containing large amounts of dust or aggressive air. ◊ Installation and repair work may only be performed by authorised personnel. ◊ Cleaning and minor maintenance work made only be performed by the operator or an authorised person designated by him in accordance with the instructions contained in the section "Maintenance and Service". ◊ If the unit is set up outside and is susceptible to being hit by lightning, the appropriate countermeasures must be implemented by an authorised company. Transport and Packaging The unit is shipped in a stable transport box made of wood and cardboard. Please examine the unit when it is delivered Make note of any damage or missing parts on the shipping bill and notify the shipping company and your contract partner. We do not assume any liability for subsequent complaints. Instructions: ◊ When shipped, the units are packaged in a box and mounted on a palette. ◊ The units must remain upright and be transported with suitable means. They must also be adequately secured from falling over. ◊ If the units are transported to a setup location that is higher up, such as platforms or roofs, they must be transported in an upright position as shown below. Operation The chiller is operated fully-automatically by an internal regulation or by an external cable remote control installed by the customer. Both types of unit operation allow some parameters to be changed as well as the water return temperature to be displayed. Internal and external regulation Pulling point Wooden boards to protect from pressure CH-DIN regulation Cable remote control 5