Innovation + Quality. Product range Valves and controls for cooling systems

Transcription

1 Innovaion + Qualiy Produc range Valves and conrols for cooling sysems

2 Cooling sysems Chilled ceiling sysems make up a growing share in he cooling secor for office buildings. Wih due consideraion o some basic rules, hese sysems may also be used for heaing. The correc choice of he mos suiable hydronic sysem is of major imporance. Ovenrop are able o offer producs required for he correc design of he hydronic sysem for hese applicaions including regulaors, acuaors and Cocon regulaing valves. These valves have he faciliy for flow regulaion and measuremen o allow a hydronic balance of he sysem o be carried ou. The valves also have inegraed isolaing, filling and draining faciliies. A full range of acuaors are available o allow he mos suiable conrol of he valve for is applicaion. For proporional conrol he valve operaes wih a linear characerisic line (linear flow depending on he pison sroke). Examples in pracice: Ovenrop regulaing valve Cocon wih acuaor insalled in a chilled ceiling Regulaion of a regulaing valve Cocon by use of he flow-meer OV-DMC Conrol of a regulaed valve Cocon via an elecrohermal acuaor

3 Hydronic conrol of chilled and radian ceiling sysems Two pipe cooling sysem The simples mehod o reduce he room emperaure by using a chilled ceiling sysem is illusraed by he wo pipe sysem. For his purpose, Ovenrop offers he following producs: he preseable valve Cocon is insalled in he reurn pipe of he chilled ceiling for he regulaion of he chilled waer flow an elecric acuaor receiving conrol commands from a room hermosa is mouned on he valve a ball valve is insalled in he supply pipe of he chilled ceiling o shu off he chilled waer flow. A dew poin conrol which shus off he flow of chilled waer in case of condensaion is insalled in he supply pipe larger sysems wih several chilled ceiling circuis are addiionally equipped wih valves for hydronic balancing as e.g. double regulaing and commissioning valves and differenial pressure regulaors Cooling/heaing Cooling Cenral changeover command wih change-over Two pipe cooling/ heaing sysem If a wo pipe sysem is also used for heaing, he following would be used: valve Cocon wih elecric acuaor dew poin conrol differenial pressure regulaor Here, a cenral changeover of he supply and reurn pipe from cooling o heaing operaion akes place and vice versa. During cooling operaion, he valve Cocon is opened via a room hermosa in case of rising room emperaure. During heaing operaion, he Cocon valve is closed via a room hermosa wih he room emperaure rising.

4 Hydronic conrol of chilled and radian ceiling sysems, LON, LON Three pipe cooling/ heaing sysem A hree pipe sysem is used if he fluid for cooling operaion and he fluid for heaing operaion are ranspored in separae supply pipes and if hey are fed back o he cooler or he hea producer in a common pipe. During cooling operaion, he acuaor Uni EIB which is conrolled by he EIB sysem, ensures, wih he valve of he Series P, he supply o he chilled or radian ceiling elemen. Moreover, he binary enry of he acuaor Uni EIB allows he connecion of a dew poin conrol device and/or a window conac. The supply of he heaing fluid is conrolled he same way. The mass flow is regulaed by use of he common radiaor lockshield valve Combi also allowing filling and draining. Four pipe heaing/cooling sysem Here, he fluid leaving he chilled or radian ceiling is fed back o he cooler or he hea producer in separae reurn pipes. The heaing or chilled waer flows are adjused or shu off by he regulaing valves Cocon and elecrohermal acuaors mouned in he reurn pipework. When heaing or cooling are no called for, he associaed Series AZ wih elecrohermal acuaor, mouned in he supply pipework, will also close o preven back flow. To avoid condensaion, he dew poin conrol closes he chilled waer reurn valves. Cooling Heaing Cooling Heaing

5 Regulaing valve Cocon Regulaing valve Hycocon Regulaing valve Cocon for chilled ceiling sysems. The calculaed flow rae is prese a he regulaing valve Cocon. Moreover, i serves o regulae he room emperaure wih he help of an elecrohermal or elecromoive acuaor by an adaped linear flow characerisic line (no for kvs =.8). The valve is insalled in he reurn pipe of chilled ceiling modules. To carry ou he hydronic balance of he chilled ceiling sysem, a preseing wih memory posiion o regulae or modify he flow resisance, can be effeced. When carrying ou he preseing, he flow rae o be regulaed can be read off he flow meer if conneced o he pressure es poins of he regulaing valve Cocon. Three differen models of he regulaing valve Cocon are available: size /", kvs value = 0. size /", kvs value =.0 size /", kvs value =.8 The regulaing valve can be used in combinaion wih: Ovenrop elecrohermal acuaors wih wo poin conrol Ovenrop elecromoive acuaors as proporional (0 0 V) or hree poin conrol Ovenrop elecrohermal acuaors EIB or LON Flow rae [kg/h] Valve 0 kvs =.0 Regulaing valve Hycocon The regulaing valve Hycocon wih a kvs value of.0 is especially designed for chilled ceiling sysems wih high flow raes. The room emperaure is regulaed wih he help of acuaors by an adaped linear flow characerisic line. The regulaing valve can be used in combinaion wih: Ovenrop elecrohermal acuaors wih wo poin conrol Ovenrop elecromoive acuaors as proporional (0 0 V) or hree poin conrol Ovenrop elecrohermal acuaors EIB or LON The valve may be insalled in he supply or reurn pipe of chilled ceiling modules. By replacing he bonne, he regulaing valve Hycocon can also be used as isolaing and orifice valve, double regulaing and commissioning valve and differenial pressure regulaor (see produc range Valves for hydronic balancing Hycocon ). Flow rae depending on he pison sroke of he valve. The char shows he linear characerisic line of he regulaing valves Cocon size /", kvs values = 0. and.0. Valve 0 0 kvs = 0. Pison sroke [%]

6 Double regulaing and commissioning valve Hydroconrol R Differenial pressure regulaor Hydroma DP Double regulaing and commissioning valve Hydroconrol R The double regulaing and commissioning valves Hydroconrol R are insalled in ho waer cenral heaing sysems (PN 6 up o 0 C) and cooling sysems in order o provide a hydronic balance beween he various circuis of he sysem. The calculaed flow rae or pressure loss can be prese for each individual circui, hus making he hydronic balance easy o achieve. Insallaion is possible in eiher he supply or he reurn pipe. Advanages: he locaion of all funcioning componens on one level allows a simple assembly and easy operaion only one valve for funcions: preseing measuring isolaing filling draining low pressure loss (oblique paern) infiniely adjusable preseing, exac measuremen of pressure loss and flow by use of he pressure es poins hread of Hydroconrol R according o DIN 999 (BS ) suiable for Ovenrop compression fiings (one edge olive) for copper pipes wih a max. diameer of mm fill and drain ball valve wih inernal sop and pressure es poin wih O-ring seal beween valve body and es poin (no addiional seals required) paened measuring channel led around he sem assembly o he es poins ensures he bes possible accuracy beween he differenial pressure measured and he acual differenial pressure of he valve Differenial pressure regulaor Hydroma DP The differenial pressure regulaor Hydroma DP is a proporional regulaor working wihou auxiliary energy. I is designed for use in heaing sysem or chilled waer circuis o mainain a consan differenial pressure wihin a necessary proporional band. Addiional echnical informaion: PN 6 up o 0 C Choice of connecions: boh pors female hread according o DIN 999 (BS ) boh pors male hread wih collar nu Corrosion resisan due o bronze maerial DN up o DN 0 Advanages: max. differenial pressure bar high flow capaciy infiniely adjusable nominal value beween 0 and 00 mbar nominal value can be locked very good opical display of nominal values a he handwheel insallaion in he reurn pipe wih isolaing faciliy wih ball valve for filling and draining pressure balanced valve disc exising double regulaing and commissioning valves can be convered o differenial pressure regulaors (idenical bodies) all funcioning componens on one level This iem is proeced by paen. 6

7 0 0 Three-way divering valve Thermosas and valves for chilled waer circuis Three-way divering valve Brass valve DN for use in chilled ceiling sysems. x /" male hreaded connecion Euro cone for he differen pipe connecions: hreaded ailpipe plug-in ailpipe compression fiings The valve is insalled in he reurn pipe of he chilled ceiling for he regulaion of he flow emperaure depending on he dew poin emperaure of he room. Adapaion of he flow emperaure of he chilled ceiling wihou inerruping cooling operaion. The insallaion no only of a emperaure sensor in he supply pipe of he chilled ceiling bu also of a sensor deecing he humidiy of he room is required. Elecromoive acuaors The hree-way divering valves serve o regulae he flow emperaure wih he help of acuaors, as e.g. Ovenrop elecromoive acuaor as proporional (0 0 V) or hree poin conrol Ovenrop elecromoive acuaors EIB or LON wih emperaure and humidiy sensor Sysem illusraion Three-way divering valve e.g. wih elecromoive acuaor wih emperaure sensor in he supply pipe. Chilled waer valves Series KT For he regulaion of Fan-Coil and inducion-coil appliances. Ovenrop hermosaic valves for use in chilled waer circuis are proporional regulaors working wihou auxiliary energy. The room emperaure is regulaed by changing he chilled waer flow. Wih he sensor emperaure rising, he valve opens. Angle and sraigh paern valves: DN up o DN. Thermosas The hermosa wih remoe conrol Uni LH (see illusr. ) or he Ovenrop remoe conrol wih addiional remoe sensor are used as regulaors (see sysem illusraion 7). 6 Example: Two pipe cooling sysem Chilled waer valves Series KT wih insalled remoe conrol Uni LH wih addiional remoe sensor. 7 Example: Four pipe sysem hea exchangers Chilled waer valves Series KT wih insalled remoe conrol and addiional remoe sensor. 0 Chilled waer Chilled K hlwasser waer Heaing waer 6 7 7

8 Acuaors s Elecromoive acuaors for room emperaure conrol combined wih poin conrols, connecion cable m long. Models: closed wih curren off 0 V closed wih curren off V closed wih curren off 0 V wih auxiliary swich Elecromoive acuaors for room emperaure conrol combined wih proporional (0 0 V) or hree poin conrols. Insallaion in radian ceiling and chilled ceiling sysems as well as inducion coil appliances. Models: V proporional acuaor (0 0 V) wih ani-blocking funcion V hree poin acuaor wihou ani-blocking funcion Elecromoive acuaors sysems EIB and LON wih inegraed bus coupling. The elecromoive acuaors are suiable for a direc connecion o he European Insallaion Bus conrol sysem and he LONWORKS neworks. The power absorpion is exremely low, so ha a separae power supply is no needed. clock 0 V and room hermosa 0 V and V. Room emperaure conrol and imed emperaure seback by use of he room hermosa-clock or he room hermosa (via an exernal ime swich) in combinaion wih elecrohermal acuaors. Elecronic room hermosa V is required when combined wih an elecromoive, proporional acuaor for individual room emperaure conrol. Wih one analogue oule 0 0 V each for heaing and cooling as well as adjusable neural zone (0. 7. k). 6 Dew poin conrol is required in combinaion wih room hermosas o proec he chilled ceilings agains condensaion. 6 Furher informaion can be found under secion of our general caalogue. F. W. OVENTROP GmbH & Co. KG Paul-Ovenrop-Sraße D-999 Olsberg Germany Telephone +9 (0 9 6) 8-0 Telefax +9 (0 9 6) 8 0 Inerne hp:// mail@ovenrop.de OVENTROP UK LTD. Uni E The Loddon Cenre Wade Road Basingsoke, Hampshire RG 8FL Telephone (0 6) 0 Telefax (Sales) (0 6) 0 Telefax (General) (0 6) Inerne sales@ovenrop.co.uk Prined on paper free from chlorine bleaching. Produc range PR -/0/6.00/Ro