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Related Manuals for REMKO KWK ZW Series
Summary of Contents for REMKO KWK ZW Series
- Page 1 Operating and installation instructions REMKO KWK ZW series Cold water wall and ceiling units KWK 125 ZW, KWK 165 ZW, KWK 205 ZW, KWK 255 ZW, KWK 305 ZW, KWK 355 ZW, KWK 455 ZW, KWK 535 ZW, KWK 595 ZW, KWK 725 ZW...
- Page 2 Read these operating instructions carefully before commis- sioning / using this device! These instructions are an integral part of the system and must always be kept near or on the device. Subject to modifications; No liability accepted for errors or mis- prints! Translation of the original...
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Page 3: Table Of Contents
Table of contents Safety and usage instructions......................4 1.1 General safety notes........................4 1.2 Identification of notes........................4 1.3 Personnel qualifications........................4 1.4 Dangers of failure to observe the safety notes................4 1.5 Safety-conscious working....................... 4 1.6 Safety notes for the operator......................5 1.7 Safety notes for installation, maintenance and inspection.............. -
Page 4: Safety And Usage Instructions
REMKO KWK ZW series Safety and usage instructions CAUTION! This combination of symbol and signal word 1.1 General safety notes warns of a potentially hazardous situation, which if not avoided may cause injury or mate- Carefully read the operating manual before com- rial and environmental damage. -
Page 5: Safety Notes For The Operator
"certificate of warranty" to conditions stipulated in this manual and comply REMKO GmbH & Co. KG at the time when the with all applicable regional regulations. units are purchased and commissioned. -
Page 6: Transport And Packaging
REMKO KWK ZW series 1.11 Transport and packaging The devices are supplied in a sturdy shipping con- tainer. Please check the equipment immediately upon delivery and note any damage or missing parts on the delivery and inform the shipper and your contractual partner. -
Page 7: Technical Data
Technical data 2.1 Unit data KWK 125-255 -ZW KWK 125 KWK 165 KWK 205 KWK 255 Series Chilled water units for wall and ceiling mounting, 2-con- Operating mode ductor version Nominal cooling output 1.20 1.63 2.09 2.51 1.49 2.02 2.42 2.87 Nominal heat capacity Application area (room volume),... - Page 8 REMKO KWK ZW series KWK 125 KWK 165 KWK 205 KWK 255 Series Dimensions Height Width Depth Weight 11.1 11.6 13.9 14.7 Operating weight, approx. 11.8 12.3 14.9 15.7 Serial number 1962... 1963... 1964... 1965... EDP no. 1664300 1664310 1664320 1664330 Air inlet temperature TK 27 °C / FK 19 °C, medium inlet 7 ℃, medium outlet 12 °C, 0% glycol concentra-...
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Page 9: Unit Data Kwk 305-455 -Zw
2.2 Unit data KWK 305-455 -ZW KWK 305 KWK 355 KWK 455 Series Chilled water units for wall and ceiling Operating mode mounting, 2-conductor version Nominal cooling output 3.08 3.51 4.54 3.47 4.03 4.95 Nominal heat capacity Application area (room volume), approx. Operating range - indoor unit °C +15 to +35... - Page 10 REMKO KWK ZW series KWK 305 KWK 355 KWK 455 Series Dimensions Height Width 1145 Depth Weight 19.9 20.9 23.3 Operating weight, approx. 21.3 22.3 Serial number 1966... 1967... 1968... EDP no. 1664340 1664350 1664360 Air inlet temperature TK 27 °C / FK 19 °C, medium inlet 7 ℃, medium outlet 12 °C, 0% glycol concentra- tion, max.
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Page 11: Unit Data Kwk 535-725 -Zw
2.3 Unit data KWK 535-725 -ZW KWK 535 KWK 595 KWK 725 Series Chilled water units for wall and ceiling Operating mode mounting, 2-conductor version Nominal cooling output 5.35 5.92 7.24 5.77 6.27 7.65 Nominal heat capacity Application area (room volume), approx. Operating range - indoor unit °C +15 to +35... - Page 12 REMKO KWK ZW series KWK 535 KWK 595 KWK 725 Series Dimensions Height Width 1145 1345 Depth Weight 24.8 27.2 28.7 Operating weight, approx. 26.5 29.2 30.7 Serial number 1969... 1970... 1971... EDP no. 1664370 1664380 1664390 Air inlet temperature TK 27 °C / FK 19 °C, medium inlet 7 ℃, medium outlet 12 °C, 0% glycol concentra- tion, max.
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Page 13: Unit Dimensions
2.4 Unit dimensions Dimensions KWK 125-KWK 725 Fig. 1: Unit dimensions (all measurements in mm) Dimen- sion 1145 1145 1345 1345 1025 1025 1225 1225 We reserve the right to modify the dimensions and design as part of the ongoing technical development process. -
Page 14: Design And Function
REMKO KWK ZW series Design and function 3.1 Unit description In cooling mode the unit (chilled water outlet) extracts the heat from the interior room to be cooled into the fin register and passes it on to the cold operating medium - water or a mix of water and glycol - within a closed medium cycle. -
Page 15: System Layout
3.2 System layout The unit is designed for a 2-conductor system. The unit can easily be upgraded to a 4-conductor system using a heating coil available as an accessory. The 2-conductor system has 2 medium pipes (conductors: supply and return flow) for cooling using a cold medium and 2 medium pipes for heating using a warm medium. - Page 16 REMKO KWK ZW series With 4-conductor systems, which are used for cooling and heating, in one system, both cooling capacity from a chiller and heating capacity from a separate heating system on the indoor units in an another system are simultaneously present.
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Page 17: Operation
Operation Example controls The unit can be easily operated with the room tem- perature controller available as an accessory or regulation to be provided by the customer. It is also possible to activate the system using a building management system. Use the separate operating manuals for this pur- pose. -
Page 18: Installation Instructions For Qualified Personnel
REMKO KWK ZW series Installation instructions Installation material for qualified personnel The indoor unit is attached using 4 bolts to be pro- vided by the customer. Important notes prior to installation Selecting the installation location Observe the Operating Manuals for the indoor unit... - Page 19 Minimum clearances Observe the minimum clearances to allow access for maintenance and repair work and facilitate optimum air distribution for the cover. Fig. 11: Minimum clearances KWK 125 - KWK 725 ZW (all measurements in mm) 2: Heat exchanger mounting bolts Changing medium connection side Place the tear-resistant plastic film on the The connection side of the heat exchanger and the...
- Page 20 REMKO KWK ZW series Inspection openings of the electrical wiring with openings of at least 300 cm Inspection openings must be provided within the of the fan unit with openings in the unit width suspended ceiling to ensure maintenance and and a depth of at least 300 cm repair work on or in the unit.
- Page 21 Installation examples A: Trim provided by the customer D: Air inlet and outlet via 90° duct elbow B: Air inlet via 90° duct elbow E: Installation example in adjoining room C: Air inlet via shadow gap If duct components provided by the customer are to be used, the dimensions of the air inlet and outlet open- ings shown below can be adopted for laying out the components.
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Page 22: Installation
REMKO KWK ZW series Installation Installing duct components The duct components are connected to each other 6.1 Unit installation and to the unit with 4 screws each. The duct com- ponents must be installed in such a way that they... - Page 23 2-conductor system for cooling and heating Valves for hydronic balancing As the 2-conductor system must cool and heat The calculated individual pressure losses in the equally, for reasons of convection during winter pipeline network layout for each individual unit are operation, a valve assembly is stipulated for all adjusted to the entire system with hydronic bal- installation methods for this system operation to...
- Page 24 REMKO KWK ZW series Horizontal mounting NOTICE! The condensate drainage line can be connected directly to the condensate tray. If a valve assembly Glycol-tolerant air bleeding valves are neces- is used, the condensate is conveyed to the unit's sary when using media that contain glycol.
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Page 25: Condensate Drainage Connection
6.2 Condensate drainage connection If the temperature falls below the dew point, con- densate will form on the cooling fins during cooling mode. Below the heat exchanger is a collection tray which must be connected to a drain. The condensate drainage line should have an incline of min. -
Page 26: Electrical Wiring
REMKO KWK ZW series Electrical wiring General connection and safety instructions DANGER! All electrical installation work is to be performed by specialist companies. Disconnect the power supply when connecting the electrical terminals. We recommend installing a main / repair switch on the building close to the indoor unit. -
Page 27: Before Commissioning
Before commissioning Commissioning Anti-freeze protection for the medium NOTICE! If a water-glycol mixture is used, it is to be pre- mixed before being put in the system. The desired Commissioning should only be performed by concentration is then to be checked. specially trained personnel and documented after the certificate has been issued. -
Page 28: Shutdown
Ensure that units and components are disposed of in accordance with local regulations, e.g. through authorised disposal and recycling specialists or at collection points. REMKO GmbH & Co. KG or your contractual partner will be pleased to provide a list of certified firms in your area. -
Page 29: Troubleshooting And Customer Service
Troubleshooting and customer service The unit and components are manufactured using state-of-the-art production methods and tested several times to verify that they function correctly. However, if malfunctions should occur, please check the functions as detailed in the list below. For systems with an indoor unit and outdoor unit, refer to the chapter "Trouble- shooting and customer service"... - Page 30 REMKO KWK ZW series Operational malfunctions (continued) Malfunction Possible causes Checks Remedial measures Drainage pipe on collection Can the condensate drain Clean the drainage pipe container clogged/damaged off without any obstruction? and collection container Insulation missing from Do all the medium-carrying...
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Page 31: Care And Maintenance
Care and maintenance Maintenance It is recommended that you take out a mainte- Regular care and observation of some basic points nance contract with an annual service from an will ensure trouble-free operation and a long appropriate specialist firm. service life. DANGER! This enables you to ensure the operational reli- Prior to performing any work, ensure the equip-... - Page 32 REMKO KWK ZW series Air filter for indoor unit Clean the air filter at intervals of no more than 2 weeks. Reduce this interval if the air is especially dirty. Fig. 19: Cleaning with a vacuum cleaner Fig. 18: Filter removal Cleaning the filter Disconnect the power supply to the unit.
- Page 33 Removing the unit cover on the KWK ZW The cover can be removed to clean the fan. Pro- ceed as follows: Disconnect the power supply to the unit. Loosen the screws on the cover [1]. Remove the cover from the unit. Clean the filter / fan as described above and re-assemble the unit in reverse order.
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Page 34: General View Of Unit And Spare Parts
REMKO KWK ZW series General view of unit and spare parts 13.1 Exploded view of the unit KWK 125 - KWK 725 ZW Fig. 22: Exploded view of the unit We reserve the right to modify the dimensions and design as part of the ongoing technical development... -
Page 35: Spare Parts List Kwk 125 - Kwk 725 Zw
13.2 Spare parts list KWK 125 - KWK 725 ZW IMPORTANT! To ensure the correct delivery of spare parts, please always the device type with the corresponding serial number (see type plate) No. Designation Air filter Valve unit incl. control board Heat exchanger Transformer Condensate tray... -
Page 36: Index
REMKO KWK ZW series Index Possible causes ..... . 29 Remedial measures ....29 Assembly . - Page 38 REMKO KWK ZW series...
- Page 40 REMKO QUALITY WITH SYSTEMS Air-Conditioning | Heating | New Energies Telephone +49 (0) 5232 606-0 REMKO GmbH & Co. KG Hotline within Germany +49 (0) 5232 606-0 Klima- und Wärmetechnik Telefax +49 (0) 5232 606-260 Im Seelenkamp 12 E-mail info@remko.de...
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