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1 K20305EN ed.1 TCAEY-THAEY Y-Power range Macrosystem 331,4 455,1 kw 353,4 486,2 kw Air-cooled water chillers and heat pumps with axial fans. Range with hermetic Scroll type compressors and R410A ecological refrigerant.

2 Y-POWER range A comp lete, flexible ser ies Four chiller and heat pump models wit h a cooling capacit y from 331 t o 455 kw and heating capacit y from 535 t o 486 kw. Making it possibl e to choos e the right model on t he basis of t he cooling capacit y required by the us ers, minimsi ng was te. The wat er chillers in the Y-POWER series are also suitabl e for all types of installation, thanks to their ext ensi ve operati ng limits. The st andard unit c an operate from an external air temperature of 45 C down to 5 C (down t o -15 C with the FI15 acc essor y). It can also operate up to temperatur es of 50 C wit h a stepped cooling capacity. ESEER and IP V On average, during their life ti me water chillers suppl y a c ooling capacit y below that for which t hey were acquired. T o ass ess t he average efficienc y, we use the ESEER (European) and IPV (American) indexes. The water chillers in the Y-POWER range have been designed for exc ellent ef ficienc y at partial loads, obtaini ng high ESEER and IPV values, with a c ons equent reduction in energy consumpti on. Control logic The new control logic makes it possible to adapt the water chiller/heat pump operating paramet ers to the load c onditions of the system in which it is installed. The control regulates t he i nlet water t emper ature, opti mising unit operation and the precision of the water s upplied t o t he s ys tem. T he eff ect is boos ted in units t hat us e t he TANK&PUMP option, with a precision guarant ee even in process applications where more precise water t emper ature control is required. Optimised components for R410a The components us ed i n t he Y-POWER series have been s pecificall y devel oped t o achieve high perfor mances and reliability with R 410a gas. The new scroll compress ors and heat exc hangers installed against t he current of plates dedicat ed to this gas, are s ome of t he key elements i n this s eries. T he f an secti on has been sized t o enable opti mum heat exchange and reduced noise. Furthermore, the electronic expansion val ve enables precise, s peedy and punct ual regul ation in the various l oad conditions. Versions Different versions are available t o meet t he specific installation silence requirements The reduced noise of the soundproofed version, with its compr essor compartment with acoustic ins ulation, c an be further implemented t hanks to the reducti on in the fan s peed i n the silent version. Correct operation and performanc es are guarant eed thanks to the optimis ed design of t he f an section. In t he silent version, the electronics enable the chiller to wor k at external air temperat ures of up t o 50 C with stepped cooling capacit y and an increas e in noise when the t emperature exceeds 42 C. A seri es p acked with accessori es The water chillers in the Y-POWER series can be fit ted with t ot al or partial rec over y heat exchangers, as well as traditional accessories, for t he production of hot water up t o 70 C. Fan speed regulati on devic es are available in applications with an ext ernal air temperature down to -15 C. On request, the water chillers can be fitted with a pump assembl y wit h single or double mot or-driven pump, or with a pump assembl y with a 1100-litre wat er buffer t ank and single or double motor-driven pump. 2

3 Y-POWER range Condensing section The design of the condensi ng section and the dynamic flui d flow generat ed by the fans have been pl anned to maximise heat exchange efficienc y and balance the press ure drops, keepi ng the nois e emitt ed i nto the environment as low as possi ble. Moreover, t he standard machi ne i ncludes condens ation control with step press ure s witch, meaning t hat it can be us ed up to an ext ernal air temperature of +5 C. Evaporator Plate evaporator with heat exchange against the c urrent. The evaporat or is equipped wit h t wo cooling circuits, which improves its efficienc y at partial loads. Hydronic assembly Single or double mot or-driven pump, including one in standby with automatic acti vation and standard or increas ed static press ure. Moreover, t he TANK&PUMP version has a 1100-litre inertial water buff er t ank. EEV: Electronic expansion valve The water chillers are fitted as standard with a latest generati on electronic expansion val ve managed by microproc essor c ontrol. In addition to enabling accur ate r efrigerant gas flows, it also allows for accurate chiller assembl y operation, with an eff ecti ve respons e ti me c ompar ed t o t he traditi onal thermost atic expansion val ve. Compressor The Y-POWER s eries us es hermetic scroll compressors specificall y designed to operat e with R 410a gas. Each circuit has 2-3 s tepped c ompressors, for a total of 5-6 steps overall, t hus enabling t he chiller to wor k in an optimum fashion at partial loads, wit h considerable energy s avings. 3

4 general characteristics Contents General ch aracteristics...4 Intended c onditions of use...4 TCAEY-THAEY mod els...5 Construction features...5 Electrical panel...5 Versions...5 Factor y fitted access ories...5 Accessories s upplied l oose...5 Technical dat a...6 Electronic control...10 Description of keypad and displ ay...10 KTR Remote keyboard...10 TRD Thermostat with display...10 SS / FTT10 serial interface...11 Serial connec tion...11 Supervision...11 Performance...11 Choice of mac hine and use of t he performance tables...11 Performance dat a for TCAEB Y-TCAEIY- TCAESY models...12 Performance dat a for THAEB Y-THAEIY- THAESY models...13 RC100 and DS acc essories: performanc es and pressure drops...15 Energy efficienc y at partial loads - EER, ESEER and IPV i ndex...19 Pressure drops at evaporator...19 TCAEY-THAEY r esidu al st atic pr essur es...20 Operating limits for TCAEY-THAEY models...22 Dimensions and footprints...23 Installation...24 Clearances and positioning...24 Movement...24 Weight distribution on fi xture points...25 TCAEY electrical connections...26 THAEY electrical connections...27 General characteristics Intended conditions of use TCAEBY units are air-cooled pac kaged water chillers with axial fans. TCAEIY-TCAESY units are water chillers which are respectively soundproofed and silent. THAEBY units are packaged evaporation/aircooled reversible heat-pumps on the refrigerant cycle. THAEIY-THAESY units are heat pumps which are r espec tivel y soundproofed and silent. They ar e int ended for use i n conditioning plants where a supply of chilled water (TCAEY) or chilled and hot water (THAEY), is required. Not suitabl e for drinking water. The units are designed for outdoor install ation. The units c omply wit h t he following directi ves: Machiner y directive 98/ 37/ EEC (MD); ow volt age directi ve 2006/95/EC ( VD); Electromagnetic Compatibility Directive 89/ 336/EEC (EMC); Pressure Equipment Directive 97/ 23/ EEC (PED). Guide to reading the cod e "SERIES" code "MODE" code T C A E B Y Wat er Scroll-type Approxi mat e produc tion Cooling onl y Air-cooled Standard R410A No. hermetic cooling capacity unit compressors versio n refrigerant fluid compressors (in kw) H I Heat pump Soundproof ed versio n S Silent version Exampl e: TCAEBY 6370 Standard unit, chiller; Air-cooled; 6 x hermetic scroll compressors; R410A refrigerant; Nominal cooling c apacit y of approxi mat ely 370 kw. 4

5 TCAEY-THAEY models Construction features oad-bearing structure in gal vanised and paint ed s heet st eel wit h pol yest er powder coating. Hermetic rotar y scroll compressor, specifically developed to operate with R410a refrigerant gas, complete with internal thermal protecti on and casi ng heater acti vat ed aut omaticall y when t he unit stops (as l ong as the unit is kept connected t o t he power s upply). Stepped cooling capacity of the chiller as in the following table: MODE Compressors/Steps No. Circuits No / /6 2 Wat er side plat e heat exc hanger installed against t he c urrent and made from stainl ess steel, wit h double refrigerant circuit and si ngle wat er side circuit to improve energy efficienc y at partial loads, a differential pressure switc h on the water side and closed cell pol yurethane foam rubber i nsulati on wit h U.V. A. ray protecti on film. Victaulic wat er connections on t he evaporat or, the heat recover y and the desuperheat er. Air side exchanger comprised of copper pipes mec hanicall y flared int o aluminium fins with " turbulenc e" design in or der t o increase energy ef ficienc y. Motor-driven axial fans with external rotor, equipped with inter nal t her mal pr otecti on and complete with protection grilles. They are grouped into t wo s ections (one per refrigerant circuit), each wit h its own circuit breaker. This configuration enables the independent management of the rows of f ans, thus improving energy efficienc y at partial loads and enabling intelligent defrost cycle management (THAEBY-THAEIY-THAESY). The fans are equipped with press ure-switc h control t o ensure operation wit h out door air temperat ure down t o +5 C. Two refrigerant circuits made of annealed copper tubes welded with silver alloy and steel. Each r efrigerant circuit c omes complete with: cartridge drier filter, c harge connections, high pressure s witc h with manual reset, low pressure s witc h with aut omatic res et, gas and humidit y indicat or, elec tronic expansion val ve (hermetic seal function on the liquid line when unit is st ationar y), coc k on the liquid line, c ycle reverse val ve (for THAEBY-THAEIY-THAESY), liquid receiver (for THAEBY-THAEIY-THAESY), compressor suction gas separator (for THAEBY-THAEIY-THAESY), s afety val ves in high pressure secti ons, s uction line insul ation in closed c ell foamed pol yurethane rubber wit h U.V.A. ray protection film. Refrigerant gas high and low pressure gauge for each refrigerant circuit. Charge of ecological R410a refrigerant fluid. Electrical panel Electrical panel c ompliant with IEC standards, in wat ertight box c omplet e with: electrical wiring for the 400V- 3ph-50Hz power suppl y; transfor mer for auxiliary circuit; auxiliary power supply 230V-1ph-50Hz; control power s upply 24V-1ph-50Hz; compressor pr otecti on phase monitor; power cont actors; remote controls: remote ON/OFF, double set-point (DSP accessory); remote machine controls: compressor operating light, general loc k; general isolator with door int erlock on the power suppl y; automatic protection switch on auxiliary circuit; aut omatic t hermal overload switc hes, with fixed c alibration, to protect each compressor/fan (the version with thermal overload s witches, with variable calibration, to protect each c ompressor is opti onal); Programmable elec tronic boar d with microproc essor, managed by the keypad installed on the mac hine, with pot enti al for remot e c ontrol up to 1,000 metres. This electronic board perfor ms t he f ollowing functi ons: regulation and management of the mac hine outlet wat er temperat ure set points; management of the s afety time delays; the wor k timer for each compressor; the automatic inversion of t he c ompress or operating sequenc e; t he circul ating or user ser vice pump (on the evaporat or side and t he c ondenser side); the electronic antifreez e pr otecti on; the shutt er steps and the f uncti ons and that regulate t he operating mode of t he various parts comprising the mac hine; management of the electronic expansi on valve (EEV) with the possibility to read and display t he s uction t emperature, evapor ation pressure and t he opening st atus of the val ve. viewing on dis play of pr ogrammed operati ng paramet ers, machi ne i nlet and outlet wat er temperatures, condensati on pressur es and any alarms; multilingual management (Italian, English, French, German, Spanis h) of the displ ay. management of alar m hist or y. The f ollowing is memorised for eac h al arm: dat e and time of acti vation; alarm c ode and descripti on; the water inl et/outlet temperat ure values when the alar m int ervened; condens ation press ure values at the time of the alarm; alarm delay time from t he s witc h-on of the connected device; compressor and fan st atus when t he alarm inter vened (if the FI10/FI 15 access ory is present, t he analogue output st atus is displayed); self-diagnosis with continuous monit oring of the unit operating st atus. Advanced functions: prepar ed f or serial c onnection, wit h RS 485 outlet for l ogical dialogue with t he main BMS (MODBUS, RTU, ON), centralised systems and super vision net works. management of time periods and operating parameters with the possibility of daily/weekly operating programs ; chec k-up and monitoring of scheduled maintenanc e st atus ; computer-assisted testi ng of the units. Versions B - Standard version (TCAEBY-THAEBY). I - Soundproofed version with s oundproof ed compressor cover (TCAEIY-THAEIY). S - Silenc ed version wit h soundproofed compressor covers and reduc ed-speed f ans (TCAESY-THAESY). general characteristics Factory fitted accessories PUMP - Single or double motor-driven pump, including one i n stand- by, ac tivat ed aut omaticall y on a time basis (for an equal share of oper ating hours) or in the event of an alarm. T he motor-driven pumps are available with s tandar d static press ure (low st atic pressure) and increas ed s tatic pressur e (high static press ure). TANK&PUMP - In additi on to t hat supplied with the PUMP acc essor y, t he pump ass embl y also includes : 1100 l inerti al wat er buffer t ank, expansion tank, bleed and saf et y valves, water drain t ap, electric heater connection and water pressure gauge. The inertial water buffer tank is installed on the wat er circuit deliver y pipe. RAS - Wat er buffer t ank antifreez e el ectric heater t o prevent the risk of ice f ormation inside the heat exchanger when t he machine is switched off ( as long as the unit is not disconnect ed from the power suppl y). RA - Evaporator el ectrical anti-freez e heat er with acti vator. DS - Desuperheater with partial condensation heat recovery. RC100 - Heat rec over y with r ecover y of 100% of t he c ondens ation heat. The accessor y is complete wit h c ondens ation control FI 10 and a differential pressure s witc h on t he r ecover y heat exchanger. TRD - Thermost at with displ ay of the inlet wat er temperature at t he heat r ecover y/ des uperheater with possibility to set the activation set-point of an external control device. RDR - Desuperheat er/recovery antifreez e electric heat er (with DS or RC100 onl y), t o prevent t he ris k of ice f ormation in the recovery heat exchanger when the machine is switched off (as l ong as the unit is kept c onnect ed to the power suppl y). IM - Unit wit h t hermal overload switc hes to protect compress ors. FI10 - El ectronic proportional device for continuous control of rot ation speed of f ans down to an out door air t emperat ure of -10 C. FI15 - El ectronic proportional device for continuous control of rot ation speed of f ans down to an out door air t emperat ure of -15 C. CR - Power fact or correction c apacit ors (cosφ > 0.94). SPS - bott om and top refrigerant pressur e signal, in card. SS - RS 485 serial int erfac e f or logical dialogue with buildi ng aut omation, c entr alised s yst ems and super vision net works ( owner protoc ol, Modbus RTU). FTT10 - ON s erial int erface for c onnection t o BMS with FTT10 standard ON protocol. CMT - power supply MIN/MAX value control. RAP - Unit wit h pre- paint ed aluminium-copper condensing c oils. BRR - Unit with c opper-copper c ondensi ng coils. RPE -ower compartment protective grilles. The f ollowi ng fact ory fitted access ories are availabl e on reques t: DSP - doubl e set- point via digital cons ens us. CS - scrolling set-point (via analogue signal 4-20 ma). Accessories supplied loose KRP - Coil protection grille. KSAM - Spring anti- vibration mountings. KTR - Remote keyboard for remote control, with the same functions as the one built i nto the unit. 5

6 technical data Technical data Table A : Technical data TCAEBY-TCAEIY model STANDARD VERSION - SOUNDPROOFED Nominal cooling c apacit y (*) kw 345,1 365,3 410,2 455,1 E.E.R. (*) 2,85 2,81 2,68 2,60 E.S.E.E.R. 3,85 3,82 3,59 3,51 I.P..V. 4,00 3,97 3,73 3,65 Sound pressure TCAEBY (*) (**) db(a) Sound power l evel TCAEBY (*)(***) db(a) Sound power l evel TCAEIY (*) (***) db(a) Scroll/step compress or No. 5/5 6/6 6/6 6/6 Circuits No Fans No. x kw 8 x 2 8 x 2 8 x 2 8 x 2 Fan nominal air flow m 3 /h Evaporator Type Plates Plates Plates Plates Evaporator nominal water flow (*) m 3 /h 59, 2 62, 7 70, 4 78, 1 Evaporator nominal press ure dr ops (*) kpa Evaporator water c ont ent l R410A refrigerant c harge See s erial no. plate Pol yest er oil charge See s erial no. plate Electri cal data Absorbed power (*) kw 121,0 130,2 153,2 175,0 Electrical power suppl y V-ph-Hz Auxiliary power supply V-ph-Hz Control power suppl y V-ph-Hz Nominal current A Max. current A Starting current A Dimensions Width () mm Height (H) mm Depth (P) mm Hydraulic pumping group Available head press ure, s tandard version (*) ( ) kp a Available head press ure, high head version (*) ( ) kpa Storage t ank capacit y ( ) l (*) In the f ollowi ng conditions : condenser air inlet t emperat ure 35 C; chilled water temperature 7 C; t emper ature diff erenti al at the evaporat or 5 K; incrust ation f actor equivalent t o 0.35x10-4 m 2 K/W (**) Sound pressure l evel db(a) at a distance of 1 metre from the unit (average val ue measured on f our sides) in a free field wit h directionalit y factor Q= 2. (***) Sound power level in db(a) on t he basis of meas urements made in compliance wit h standard UNI EN-ISO 3744 and Eurovent 8/1. ( ) With TANK & PUMP or PUMP acc essor y N.B.: The us ef ul static pressur e values of t he motordriven pumps c an be s een in the graphs on page 20 and the heat exc hanger pressur e drops c an be obtained by f ollowing the instructions on page 19. For the units with integrated pump assembl y, to the electrical absor ption indic ated in the table add the el ectrical absorpti on rel ati ve to t he chosen mot or-driven pumps i ndicated on page 26. The calc ulation of t he E.E.R. does not include mot or-driven pump c ons umption. H P ( ) With TANK & PUMP acc essor y 6

7 technical data Table B : Technical data TCAESY model SIENT VERSION Nominal cooling c apacit y (*) kw 338,2 354,3 397,9 446,0 E.E.R. (*) 2,80 2,73 2,58 2,50 E.S.E.E.R. 3,81 3,66 3,46 3,33 I.P..V. 3,97 3,81 3,59 3,46 Sound pressure TCAESY (*) (**) db(a) Sound power l evel TCAESY (*) (***) db(a) Scroll/step compressor No. 5/5 6/6 6/6 6/6 Circuits No Fans No. x kw 8 x x x x 1.2 Fan nominal air flow m 3 /h Evaporator Type Plates Plates Plates Plates Evaporator nominal water flow (*) m 3 /h 58, 0 60, 8 68, 3 76, 5 Evaporator nominal press ure dr ops (*) kp a Evaporator water c ont ent l R410A refrigerant c harge See s erial No. plat e Pol yest er oil charge See s erial no. plate Electri cal data Absorbed power (*) kw 120,6 129,8 154,3 178,1 Electrical power suppl y V-ph-Hz Auxiliary power supply V-ph-Hz Control power suppl y V-ph-Hz Nominal current A Max. current A 273,8 301,8 331,8 361,8 Starting current A 528,8 513,8 586,8 616,8 Dimensions Width () mm Height (H) mm Depth (P) mm Hydraulic pumping group Available head press ure, s tandard version (*) ( ) kpa Available head press ure, high head version (*) ( ) kp a Storage t ank capacit y ( ) l (*) In the f ollowi ng conditions : condenser air inlet t emperat ure 35 C; chilled water temperature 7 C; t emper ature diff erenti al at the evaporat or 5 K; incrust ation f actor equivalent t o 0.35x10-4 m 2 K/W (**) Sound pressure l evel db(a) at a distance of 1 metre from the unit (average val ue measured on f our sides) in a free field wit h directionalit y factor Q= 2. (***) Sound power level in db(a) on t he basis of meas urements made in compliance wit h standard UNI EN-ISO 3744 and Eurovent 8/1. ( ) With TANK & PUMP or PUMP acc essor y N.B.: The us ef ul static pressur e values of t he motordriven pumps c an be s een in the graphs on page 20 and the heat exc hanger pressur e drops c an be obtained by f ollowing the instructions on page 19. For the units with integrated pump assembl y, to the electrical absor ption indic ated in the table add the el ectrical absorpti on rel ati ve to t he chosen mot or-driven pumps i ndicated on page 26. The calc ulation of t he E.E.R. does not include mot or-driven pump c ons umption. H P ( ) With TANK & PUMP acc essor y 7

8 technical data Table C : Technical data THAEBY-THAEIY model STANDARD VERSION - SOUNDPROOFED Nominal cooling c apacit y (*) kw 338,2 357,8 402,0 446,1 E.E.R. (*) 2,77 2,72 2,61 2,52 E.S.E.E.R. 3,74 3,70 3,53 3,43 I.P..V. 3,88 3,85 3,67 3,57 Nominal heating capacity (**) 372,0 393,6 434,2 486,2 C.O.P. (**) 2,95 2,92 2,89 2,85 Sound pressure (*)(***) db(a) Sound power l evel THAEBY (*) (****) db(a) Sound power l evel THAEIY (*) (****) db(a) Scroll/step compress or No. 5/5 6/6 6/6 6/6 Circuits No Fans No. x kw 8 x 2 8 x 2 8 x 2 8 x 2 Fan nominal air flow m 3 /h Evaporator/c ondenser Type Plates Plates Plates Plates Evaporator/c ondenser nominal water flow (**) m 3 /h 64, 8 68, 6 75, 6 84, 7 Evaporator/c ondenser nominal pressure drops (**) kpa Evaporator water c ont ent l R410A refrigerant c harge See s erial No. plat e Pol yest er oil charge See s erial no. plate Electri cal data Absorbed power in wint er operation (**) kw ,7 150,2 170,9 Absorbed power in summer oper ation (*) kw 122,2 131,5 153,8 176,7 Electrical power suppl y V-ph-Hz Auxiliary power supply V-ph-Hz Control power suppl y V-ph-Hz Nominal current A Max. current A Starting current A Dimensions Width () mm Height (H) mm Depth (P) mm Hydraulic pumping group Available head press ure, s tandard version (**) ( ) kpa Available head press ure, high head version (**) ( ) kpa Storage t ank capacit y ( ) l (*) In the f ollowi ng conditions : condenser air inlet t emperat ure 35 C; chilled water temperature 7 C; t emper ature diff erenti al at the evaporat or 5 K; incrust ation f actor equivalent t o 0.35x10-4 m 2 K/W (**) In the f ollowi ng conditions : evaporator i nlet air temperature 7 C D.B., 6 C W.B.; hot wat er temperature 45 C; temperat ure dif ferential at the condenser 5 C. (***) Sound pressure level db(a) at a distance of 1 metre fr om the unit (aver age value measured on f our sides) in a free field wit h directionality fac tor Q=2. ( ) With TANK & PUMP or PUMP acc essor y ( ) With TANK & PUMP acc essor y N.B.: The us ef ul static pressur e values of t he motordriven pumps c an be s een in the graphs on page 20 and the heat exc hanger pressur e drops c an be obtained by f ollowing the instructions on page 19. For the units with integrated pump assembl y, to the electrical absor ption indic ated in the table add the el ectrical absorpti on rel ati ve to t he chosen mot or-driven pumps i ndicated on page 27. H P (****) Sound power l evel in db(a) on the basis of meas urements made in compliance wit h standard UNI EN-ISO 3744 and Eurovent 8/1. The calc ulation of t he E.E.R. and C.O.P. does not take the mot or-driven pump abs orption int o account. 8

9 technical data Table D : Technical data THAESY model SIENT VERSION Nominal cooling c apacit y (*) kw 331,4 350,6 394,0 437,2 E.E.R. (*) 2,70 2,66 2,52 2,45 E.S.E.E.R. 3,62 3,59 3,43 3,26 I.P..V. 3,77 3,73 3,57 3,39 Nominal heating capacity (**) 353,4 373,9 412,5 461,9 C.O.P. (**) 2,92 2,89 2,86 2,82 Sound pressure (*)(***) db(a) Sound power l evel (*) (****) db(a) Scroll/step compressor No. 5/5 6/6 6/6 6/6 Circuits No Fans No. x kw 8 x x x x 1.2 Fan nominal air flow m 3 /h Evaporator/c ondenser Type Plates Plates Plates Plates Evaporator/c ondenser nominal water flow (**) m 3 /h 61, 6 65, 1 71, 9 80, 5 Evaporator/c ondenser nominal pressure drops (**) kp a Evaporator water c ont ent l R410A refrigerant c harge See s erial No. plat e Pol yest er oil charge See s erial No. plat e Electri cal data Absorbed power in wint er operation (**) kw 120,6 128,9 143,8 163,7 Absorbed power in summer oper ation (*) kw 122,6 132,0 156,1 178,6 Electrical power suppl y V-ph-Hz Auxiliary power supply V-ph-Hz Control power suppl y V-ph-Hz Nominal current A Max. current A 273,8 301,8 331,8 361,8 Starting current A 528,8 513,8 586,8 616,8 Dimensions Width () mm Height (H) mm Depth (P) mm Hydraulic pumping group Available head press ure, s tandard version (**) ( ) kp a Available head press ure, high head version (**) ( ) kp a Storage t ank capacit y ( ) l (*) In the f ollowi ng conditions : condenser air inlet t emperat ure 35 C; chilled water temperature 7 C; t emper ature diff erenti al at the evaporat or 5 K; incrust ation f actor equivalent t o 0.35x10-4 m 2 K/W (**) In the f ollowi ng conditions : evaporator i nlet air temperature 7 C D.B., 6 C W.B.; hot wat er temperature 45 C; temperat ure dif ferential at the condenser 5 C. ( ) With TANK & PUMP or PUMP acc essor y ( ) With TANK & PUMP acc essor y N.B.: The us ef ul static pressur e values of t he motordriven pumps c an be s een in the graphs on page 20 and the heat exc hanger pressur e drops c an be obtained by f ollowing the instructions on page 19. H (**) Sound pressure l evel db(a) at a distance of 1 metre from the unit (average val ue measured on f our sides) in a free field wit h directionalit y factor Q= 2. (****) Sound power l evel in db(a) on the basis of meas urements made in compliance wit h standard UNI EN-ISO 3744 and Eurovent 8/1. For the units with integrated pump assembl y, to the electrical absor ption indic ated in the table add the el ectrical absorpti on rel ati ve to t he chosen mot or-driven pumps i ndicated on page 27. The calc ulation of t he E.E.R. and C.O.P. does not take the mot or-driven pump abs orption int o account. P 9

10 electronic control Electronic control Description of keypad and display The keyboard with display makes it possible to view the wor king temperature and all t he unit proc ess variables, as well as providi ng access t o setting paramet ers for oper ating set poi nts and their modification. For purposes of technical assistance, it allows passwordprotect ed access to the unit's management par ameters (acc ess f or aut horised pers onnel onl y). KTR Remote keyboard The remot e keyboard with displ ay (KTR) allows t he remote c ontr ol and display of all t he unit's digital and anal ogue process variables. It theref ore possibl e to control all t he machine f uncti ons directl y in t he room. Makes it possible t o s et and manage the ti me bands. Note: The t emporar y presence of t wo devices, on- boar d machi ne keyboard and remote keyboar d, will cause the on-board machine terminal to be disabled.! AARM TRD Thermostat with display SE 2 Prg MODE PRG mute 3 ON OFF 4 5! AARM Prg ON OFF MODE DISPAY: displays t he numbers and the values of all the parameters (i.e. outlet water t emper ature etc.), any alarm c odes and r esource st atus by means of strings. AARM key: makes it possible to display of the code and reset any alarms. PRG key: makes it possible to programme the mac hine's operating par ameters. ON/OFF key: makes it possible to s witc h t he unit on and off. UP key: used to scr oll through the list of paramet ers, status es and any alar ms; makes it possibl e to modif y set poi nts. MODE - ENTER key: makes it possible to switch from chiller to heat pump operation and vice versa. DOWN key: used to scr oll through the list of paramet ers, status es and any alar ms; makes it possibl e to modif y set poi nts. 1 The inst allation of t he t her most at wit h displ ay (TRD) accessor y in the mac hine makes it possi ble t o dis play t he r ecover y/ des uperheater inl et wat er temperat ure and to set the ac tivation set-point of an ext ernal regulation device (i.e. ON/ OFF 3- way valve), enabling rational and effec tive us e of t he rec over ed t her mal energ y. 1 = DISP AY: displays t he r ecover y/ des uperheater inl et water t emperat ure. 2/4/ 5 = SE, (up), (down) keys: make it possible to s et the set- point and acti vati on differential of an external regulation device. 3 = PRG/mute key: makes it possible to access the parameter programming menu. 10

11 ! AARM Prg ON OFF MODE TCAEY-THAEY serial connection/performances SS / FTT10 serial interface Serial connection All units are equi pped with elec tronic c ontrol that can int erfac e with an ext ernal s yst em via a serial c ommunicati on line by means of t he KIS s erial int erface acc essor y (proprietar y pr otoc ol or ModBus RTU) and t he KCH converter. Supervision In general, a supervision system allows access to all unit functi ons, s uch as: making all s ettings which are accessi ble t hrough the ke yboard; reading all process variables of the inputs and out puts, whether digital or anal ogue; reading t he various alarm c odes whic h are pres ent, and resetting t hem as nec essar y; reading all programming par ameters and var ying some of them. Note: for further information contact the R hoss s ales s upport service. Performance Choice of machine and use of the performance tables Tables E and F for the TCAEY models and tables G and H for the THAEY models provide the cooling capacit y (QF) and abs orbed electrical power (P) on the basis of t he evaporat or outlet water t emperature wit h const ant temperatur e diff erentials Δt = 5 C and the exter nal air t emperature. Tables I and J for THAEY models provide the heating capacit y (QT) and the absorbed electrical power (P), on t he basis of t he condens er outlet water t emper ature wit h const ant temperatur e diff erentials Δt = 5 C and the exter nal air t emperature and relative humidit y. In keeping with the operating limits (see page 22) tables E, F, G, H, I and J can enable perfor mance i nterpolati ons, but extrapolations ar e not permit ted. Tables P, Q, R, and " S provide t he E.E.R, ESEER and IPV energy index val ues for eac h model. Tables U and V pr ovide the sound pressure values in db by oct ave bands, t he total s ound power l evel in db(a) and the s ound pressure values in db(a) at diff erent dist anc es for eac h model. Table W shows the values of corrective coefficients t o be applied to t he nominal values if water with gl ycol is used. Charts 1, 2, 3 and 4 indic ate the residual st atic pressure of the pump (if pres ent). 11

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