MasterAria. electronic controller. User manual

Transcription

1 MaserAria elecronic conroller User manual

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3 WARNINGS DISPOSAL CAREL bases he developmen of is producs on decades of experience in HVAC, on he coninuous invesmens in echnological innovaions o producs, procedures and sric qualiy processes wih in-circui and funcional esing on 100% of is producs, and on he mos innovaive producion echnology available on he marke. CAREL and is subsidiaries noneheless canno guaranee ha all he aspecs of he produc and he sofware included wih he produc respond o he requiremens of he final applicaion, despie he produc being developed according o sar-of-hear echniques. The cusomer (manufacurer, developer or insaller of he final equipmen) acceps all liabiliy and risk relaing o he configuraion of he produc in order o reach he expeced resuls in relaion o he specific final insallaion and/or equipmen. CAREL may, based on specific agreemens, acs as a consulan for he posiive commissioning of he final uni/applicaion, however in no case does i accep liabiliy for he correc operaion of he final equipmen/sysem. The CAREL produc is a sae-of-he-ar produc, whose operaion is specified in he echnical documenaion supplied wih he produc or can be downloaded, even prior o purchase, from he websie Each CAREL produc, in relaion o is advanced level of echnology, requires seup / configuraion / programming / commissioning o be able o operae in he bes possible way for he specific applicaion. The failure o complee such operaions, which are required/indicaed in he user manual, may cause he final produc o malfuncion; CAREL acceps no liabiliy in such cases. Only qualified personnel may insall or carry ou echnical service on he produc. The cusomer mus only use he produc in he manner described in he documenaion relaing o he produc. In addiion o observing any furher warnings described in his manual, he following warnings mus be heeded for all CAREL producs: preven he elecronic circuis from geing we. Rain, humidiy and all ypes of liquids or condensae conain corrosive minerals ha may damage he elecronic circuis. In any case, he produc should be used or sored in environmens ha comply wih he emperaure and humidiy limis specified in he manual; do no insall he device in paricularly ho environmens. Too high emperaures may reduce he life of elecronic devices, damage hem and deform or mel he plasic pars. In any case, he produc should be used or sored in environmens ha comply wih he emperaure and humidiy limis specified in he manual; do no aemp o open he device in any way oher han described in he manual; do no drop, hi or shake he device, as he inernal circuis and mechanisms may be irreparably damaged; do no use corrosive chemicals, solvens or aggressive deergens o clean he device; do no use he produc for applicaions oher han hose specified in he echnical manual. The produc is made from meal pars and plasic pars. In reference o European Union direcive 2002/96/EC issued on 27 January 2003 and he relaed naional legislaion, please noe ha: 1. WEEE canno be disposed of as municipal wase and such wase mus be colleced and disposed of separaely; 2. he public or privae wase collecion sysems defined by local legislaion mus be used. In addiion, he equipmen can be reurned o he disribuor a he end of is working life when buying new equipmen; 3. he equipmen may conain hazardous subsances: he improper use or incorrec disposal of such may have negaive effecs on human healh and on he environmen; 4. he symbol (crossed-ou wheeled bin) shown on he produc or on he packaging and on he insrucion shee indicaes ha he equipmen has been inroduced ono he marke afer 13 Augus 2005 and ha i mus be disposed of separaely; 5. in he even of illegal disposal of elecrical and elecronic wase, he penalies are specified by local wase disposal legislaion. All of he above suggesions likewise apply o he conrollers, serial boards, programming keys or any oher accessory in he CAREL produc porfolio. CAREL adops a policy of coninual developmen. Consequenly, CAREL reserves he righ o make changes and improvemens o any produc described in his documen wihou prior warning. The echnical specificaions shown in he manual may be changed wihou prior warning. The liabiliy of CAREL in relaion o is producs is specified in he CAREL general conrac condiions, available on he websie and/or by specific agreemens wih cusomers; specifically, o he exen where allowed by applicable legislaion, in no case will CAREL, is employees or subsidiaries be liable for any los earnings or sales, losses of daa and informaion, coss of replacemen goods or services, damage o hings or people, downime or any direc, indirec, incidenal, acual, puniive, exemplary, special or consequenial damage of any kind whasoever, wheher conracual, exra-conracual or due o negligence, or any oher liabiliies deriving from he insallaion, use or impossibiliy o use he produc, even if CAREL or is subsidiaries are warned of he possibiliy of such damage. 3

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5 Conens 1. INTRODUCTI 7 2. USER Acqua remoe erminal Operaing modes Seing he ime and On/Off imes (imer) INSTALLATI MaserAria and accessories Insallaion MaserAria panel wiring diagram Connecion diagrams Acqua remoe erminal Programming key (copy he confi guraion) Nework connecion ADVANCED SETTINGS Confi guraion Conrol algorihms Oule limis Noes on seings via serial connecion Alarms Table of parameers SYSTEM DIAGRAMS Sysem Sysem Sysem N-HYDRIC SUPERVISORY SYSTEMS TECHNICAL SPECS. AND PURCHASE CODES MaserAria elecrical panel Main conrol board Expansion board wih 2 x 0-10 Vdc oupus/2 relays Expansion board wih 4 relays (accessory) Expansion board wih 4 riacs (accessory) Expansion board wih 2 riacs/2 relays (accessory) Acqua remoe erminal (accessory) RS485 serial board (accessory) Codes Sofware revisions

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7 1. INTRODUCTI Feaures of he MaserAria family: Acqua remoe erminal wih an elegan appearance, buil-in room emperaure sensor and diversified access o he various funcions (values se using he fron buons, operaing mode changed using he side buons); Conrol board wih high number of I/Os (5 digial inpus, 3 probes, 5 relay oupus and dipswiches for simple configuraion by he insaller); Cusom connecion o supervisory sysems wih he numerous proocols suppored (Modbus, PlanVisor); Parameer programming key (accessory); Expansion board o conrol modulaing 3-poin or / valves (accessories) MaserAria is a produc designed for small air heaer and air handling uni (AHU) marke, for boh unis wih ouside air only and wih recirculaion or hea recovery unis. I is used o manage a ho/cold waer coil wih modulaing valve and modulaing ouside air damper or alernaively wo coils wih modulaing valve and / ouside damper. The compac elecrical panel (IP54) conains he main conrol board, he expansion board wih 2 modulaing 0 o 10 Vdc oupus and 2 relay oupus, he circui breaker and he fan proecion and conrol conacor. Versions are available for he conrol of single-phase and hree-phase fan moors, wih he possibiliy o adjus he maximum cuoff curren. The produc can also be supplied wihou he elecrical panel, wih he main conrol board and expansion board seleced wih 2 modulaing 0 o 10 Vdc oupus and 2 relay oupus, 4 riac oupus, 2 riac oupus and 2 relays, or 4 relay oupus and he acqua remoe erminal. The 3 oupus on he main board for conrolling he fan can be used o manage single-phase 3-speed fans (he firs oupu conrols he conacor in he MaserAria elecrical panel) and hree-phase fans. The sysem is simple o configure by seing he dipswiches on he main conrol board and he parameers on he acqua remoe erminal; his can in fac be used o display he alarms, se he parameers and he on/ off ime bands. The possibiliy of configure he oupus and he availabiliy of various expansion boards means various ypes of loads can be conrolled, such as ho/cold waer coil valves, heaers, ho and cold waer signals o he chiller/hea pump and boiler, ouside damper, recirculaion damper and hea recovery uni damper. The RS485 serial board (accessory) can be used o creae cusom (PlanVisor) or open (Modbus ) supervisory sysems. Finally, he pcoweb board (accessory) can be used o connec MaserAria o a compuer on an inrane, or alernaively o a save he variables and graphs o a file ha can be sen using Inerne Explorer. 7

8 2. USER The user inerface is he acqua remoe erminal, feauring a user-friendly liquid crysal display Acqua remoe erminal In summary: buil-in NTC sensor o conrol he room emperaure; LCD wih inuiive symbols; selecion of he value displayed (emperaure, se poin, offse from common se poin); selecive keypad lock (limied funcions for offices, hoels); manual or auomaic operaion; / imer funcions; sleep funcion. Below is a descripion of he erminal and he symbols shown on he liquid crysal display: HR AUTO HR Fig. 2.b Key: 1. sleep funcion 2. limied keypad funcion 3. acive alarm 4. display value 5. fan speed in auomaic mode 6. fan speed seing indicaor (min/med/max) 7. fan 8. dehumidificaion 9. auomaic operaion 10. cooling 11. heaing wih heaer 12. heaing 13. curren ime 6 AUTO 5 bu. Fig. 2.a meaning Air handling uni (AHU) /. If he remoe / digial inpu is available, he funcion of he buon can be disabled. Used o selec he desired operaing mode: cooling(snowflake), heaing (sun), dehumidificaion, venilaion, AUTOMATIC. If he remoe cooling/heaing digial inpu is available, his buon can be disabled. Pressing repeaedly ses he fan speed (min, med, max, auomaic=auto). Confirms o he changes made o he parameers. Pressing once acivaes he sleep funcion, pressing again selecs he duraion of he sleep funcion in hours (if more han hree seconds elapse from when he buon was previously pressed, he funcion is deacivaed). Afer pressing 9 consecuive imes, he funcion is deacivaed. Holding he buon ses he curren ime. Pressing once selecs he MaserAria ime (changed using UP & DOWN), pressing again selecs he ime, and pressing a hird ime exis he imer programming procedure. Increase value (UP) Below is a descripion of all he operaing modes available on MaserAria. The device can in any case be reconfigured by he manufacurer of he cooling/heaing sysem or he insaller (based on he feaures of he sysem), and herefore some funcions may be no available. 2.2 Operaing modes Cooling Once having swiched he device on, by pressing he / buon: Repeaedly press he MODE buon unil he cooling symbol (snowflake) comes on. Se he se poin (desired emperaure) using he UP & DOWN buons. Repeaedly press he fan buon o selec he desired fan speed; if AUTO mode is seleced, he speed is decided by he elecronic conroller based on he deviaion from he se poin (he greaer he deviaion, he higher he speed). If he COOL ENABLE funcion is acive, he fan is sared only if he coil emperaure is low enough, o avoid undesired flows of ho air. If his condiion is no saisfied, he cooling symbol (snowflake) flashes. Decrease value (DOWN) Tab. 2.a Imporan: The fan speed can only be seleced using he fan buon if parameer 118 = 0. Fig. 2.c 8

9 Heaing Once having swiched he device on, by pressing he / buon: Repeaedly press he MODE buon unil he heaing symbol only (sun) or he heaing symbol wih heaer, if insalled (*), comes on. In he laer case, he elecric heaer is also used as a source of hea; Se he se poin (desired emperaure) using he UP & DOWN buons; Repeaedly press he fan buon o selec he desired fan speed; if AUTO mode is seleced, he speed is decided by he elecronic conroller based on he deviaion from he se poin (he greaer he deviaion, he higher he speed). If he HEAT ENABLE funcion is acive, he fan is sared only if he coil emperaure is high enough, o avoid undesired flows of cold air. If his condiion is no saisfied he heaing symbol (sun) flashes. If he elecric heaer is insalled (signalled by he corresponding symbol on he display), he fan coninues operaing for 20 seconds afer i has been deacivaed. This ime is also mainained when swiching off he device using he / buon. wih heaer wihou heaer Fig. 2.d Fig. 2.e (*): For he insallaion of he elecric heaer, see he paragraph on Configuraion. AUTOMATIC Fig. 2.g Once having swiched he device on, by pressing he / buon: Repeaedly press he MODE buon unil he AUTOMATIC symbol comes on; Se he se poin (desired emperaure) using he UP & DOWN buons; Repeaedly press he fan buon o selec he desired fan speed; if AUTO mode is seleced, he speed is decided by he elecronic conroller based on he deviaion from he se poin (he greaer he deviaion, he higher he speed). The operaing mode (heaing or cooling) is decided by he elecronic conroller based on he deviaion from he se poin: if he room emperaure is higher han he se poin, he conroller acivaes cooling mode, while if i is lower heaing mode is acivaed. The fan is sared only if he coil emperaure is suiable for he heaing or cooling funcions. AUTOMATIC mode HR Dehumidificaion Once having swiched he device on, by pressing he / buon: Repeaedly press he MODE buon unil he dehumidificaion symbol (droples) comes on; Se he se poin (desired emperaure) using he UP & DOWN buons; Repeaedly press he fan buon o selec he desired fan speed; if AUTO mode is seleced, he fan works a minimum speed. The fan is sared only if he coil emperaure is low enough, so as o avoid undesired flow of ho and humid air. If his condiion is no saisfied, he dehumidificaion symbol flashes. MaserAria sars in cooling mode so as o bring he room emperaure closer o he se poin (se poin +3 C) using he seleced speed, and hen runs fan on/ off cycles a minimum speed o decrease he humidiy. Comfor Fig. 2.h In some sysems, he se poin is decided by he manager of he insallaion; in hese cases, he user may increase or decrease he se poin by up o 3 C o compensae for differen percepion of he room emperaure. The value is changed by pressing he UP and DOWN buons and is displayed for 5 seconds, afer which he previous display resumes. AUTO MAN AUTOMATIC mode wih comfor acive comfor variaion HR HR Fig. 2.f AUTO MAN Fig. 2.i Fig. 2.j AUTO MAN Venilaion This operaing mode can be disabled by seing parameer 38=8. The mode may be useful for circulaing he air in he room. In his case, also se he minimum opening of he ouside damper (parameer 119> 0%). Once having swiched he device on, by pressing he / buon: Repeaedly press he MODE buon so ha only he fan symbol is on (a he boom of he display) ogeher wih he corresponding speed bar. Repeaedly press he fan buon o selec he desired fan speed; if AUTO mode is seleced, he speed is se o medium. The fan is sared only if he room emperaure is wihin he range of emperaures from 15 o 35 C, o avoid undesired flows of ho or cold air. 9

10 HR AUTO MAN ENG Sleep The sleep funcion is especially useful a nigh, when he decrease in body emperaure (due o sleep) changes he percepion of he room emperaure. In cooling mode he se poin is increased by he value of he parameer 18 for he number of hours specified on he display, afer which MaserAria reurns o he previous siuaion (he sleep funcion is cancelled). In heaing mode he se poin is decreased by he value of parameer 19. To se he sleep funcion: Swich he device on using he / buon and selec he operaing mode; Press he clear buon repeaedly unil seing he required number of hours for he funcion. To cancel his funcion, press he clear buon again, afer having waied 3 seconds from when he buon was las pressed, or pressing he buon more han once unil exceeding he maximum number of hours, ha is, 9. Sleep operaion can be acivaed by a digial inpu ha has been configured accordingly. In his case, he funcion is called economy (see he paragraph on Digial inpus ). Remoe off Acivaed when dipswich 3 = When he remoe off symbol (lock) is shown he operaing mode is se o AUTOMATIC (wih heaer, if insalled) and he user can: swich he uni on/ off, modify he se poin and se he fan speed; he oher funcions are no available. HR Fig. 2.k Disabling he operaing modes Parameer 38 is used o reduce he number of operaing modes available on he acqua erminal. The seing is achieved by adding he values shown below, each of which corresponds o disabling he corresponding mode. AUTO MAN 1 AUTOMATIC 2 cooling 4 dehumidificaion 8 venilaion 16 heaing 32 auofan (see corresponding paragraph) 64 sleep 128 / imer & ime display 2.3 Seing he clock and On/Off imes (imer) Seing he ime MaserAria offers he possibiliy o perform programmed sars and sops if he room only needs o be air-condiioned a cerain imes of he day. To be able o use hese funcions, he inernal clock needs o be se wih he correc ime, as shown below: 1. Hold he imer buon for 5 seconds (he clock icon appears); 2. Se he ime using he UP and DOWN buons (he ime flashes); 3. Confirm by pressing he SET buon (he ime is displayed seady). 1 Fig. 2.l Imporan: In he even of power failures, he ime reurns o 12:00 and mus be se again. The ime display can be disabled by seing parameer 38=128. Seing he on and off imes Press he TIMER buon once; Se he required ime wih he UP and DOWN buons (he ime flashes); Confirm he ime wih he se buon (he symbol is on seady and he curren ime is displayed): he clock icon is shown wih he ex. The imer is se in he same way as he imer, wih he difference ha he TIMER buon mus be pressed wice. Imporan: In he even of power failures, he imer values are los and mus be rese. The / imer funcions remain acive even afer he corresponding On/Off even has occurred; o disable hese funcions proceed as follows: Press he imer buon: once o disable he imer or wice o disable he imer (he ime flashes); Press he clear buon (he relaed symbol disappears). on ime se: imer HR AUTO MAN 2 3 off ime se: imer Fig. 2.m Fig. 2.n Noes: he On/Off imes can be se independenly. HR AUTO MAN 10

11 3. INSTALLATI In summary: easy configuraion by dipswiches; possibiliy of conrol wih inake/reurn probe or probe on he acqua erminal; possibiliy o creae supervisor neworks using he RS485 serial board (accessory). Expansion board wih analogue/relay oupus (code HYVC000V00) Allows MaserAria o conrol wo acuaors wih 0 o 10 Vdc inpus (e.g.: modulaing valves, ec.) and conrol any addiional loads using o he wo mulifuncion relays. 3.1 MaserAria and accessories Below is a descripion of he family of devices made up of MaserAria and is accessories: Elecrical panel CTEM7*: Single-phase version CTEDB*: Three-phase version The elecrical panel conains he main conrol board plus he expansion board wih 2 x 0 o 10 Vdc oupus and 2 relay oupus. I is also fied wih a disconnec swich, a power conacor for he fan and a circui breaker Fig. 3.c Expansion board wih 4 relays (code HYVC000R00) Allows MaserAria o manage / acuaors (valves, heaers, dampers) and he ho and cold waer signals o he chiller and hea pump/boiler). Fig. 3.d Expansion board wih 2 riac/relay oupus (code HYVC000M00) Allows MaserAria o conrol loads wih a high number of operaions (e.g.: modulaing 3 poin valves, ec.) using he 2 riac oupus wih volage signal (230 Vac) and direcly conrol a 2 kw heaer. A second mulifuncion relay is available for any addiional loads. Fig. 3.a MaserAria main conrol board (code HYCT000000) Manages he fan and conrols he emperaure. Allows he connecion of digial inpus for he remoe conrol of funcions such as /, cooling/heaing, economy (see sleep funcion) ec. Fied, using he special accessory, wih a serial por for he nework connecion of a series of unis (supervisory sysem). Fig. 3.e Expansion board wih 4 riacs (code HYVC000T00) Allows MaserAria o conrol loads wih a high number of operaions (e.g.: modulaing 3 poin valves, ec.) using he 4 riac oupus wih volage signal (230 Vac). Fig. 3.b Fig. 3.f 11

12 RS485 serial board (code HYSC00F0P0, accessory) Used o creae cusom (PlanVisor) or open (Modbus ) supervisory sysems. 3.2 Insallaion The elecrical panel can be wall-mouned or insalled in he air handling uni. Wall-mouning and dimensions: Fig. 3.g Idenify he correc posiion on he wall, drill 4 holes, according o he drawing, and inser he plugs. Back Fron Programming key (code PSOPZKEY00, accessory) Used o simply expor he configuraion of he parameers from one MaserAria o anoher. PSOPZKEYA0 is he version wih power supply. 218,5 Ø , ,3 19, Wall mouning Panel mouning Fig. 3.h Adaper for MaserAria programming key (code HYKA000000, accessory) To be used ogeher wih he programming key PSOPZKEY Fig. 3.k Move he main swich on he panel o he posiion and: 1. remove he op and boom covers, and, wihou removing he fron cover, inser he screws and fasen he panel o he wall; 2. now unscrew he 4 inside screws and remove he fron cover o access o he elecrical connecions. 1 Fig. 3.i Acqua LCD erminal for MaserAria (code HYPA001000, accessory) 2 Allows he user o se he operaion of MaserAria and display he alarms. The LCD ensures sraighforward and user-friendly operaion. In addiion, i is fied wih an NTC sensor ha can be used for room emperaure conrol. power supply fan, acuaors Fig. 3.j Fig. 3.l probes, digial inpus Noe: separae he power supply connecions and he load cables from he probe and digial inpu cables. 12

13 4 ENG Srucure single-phase model A1 QS1 hree-phase model A1 QS1 Key: A1 A2 KR1-KM1 QS1 QF1 Main conrol board Expansion board Conacor Main swich Circui breaker 235 mm A2 QF1 235 mm A2 QF1 Insalling he boards and dimensions KR1 KM1 The conrol ki consiss of he main conrol board, an expansion board and he acqua erminal. 195 mm Fig. 3.m.a 195 mm Fig. 3.m.b This is fasened o he elecrical panel ha conrols he AHU using 4 plasic spacers (manufacurer RICHCO, code LCBS-8-01) insered in he holes on he four corners of he main conrol board.. 14,2 2,5 HYCT0* 3.4 MaserAria panel wiring diagram MaserAria single phase POWER SUPPLY 1P+N+T 230V ~ 50 Hz L N QS1 QF1 FU1 FLAP EXP IR DI5 B1 B2 B3 DIP A1 HYVC000V00 valve board A2 HYCT MaserAria conroller XP ,6 10,2 2,8 12,7 5,6 7,1 Hole: Ø 4,75 board hickness: 1,6 mm Fig. 3.n KR1 GN NO4 GN NO5 NO6 NO6 NO7 NO7 L L N N N NO3 NO2 NO1 GN Tx V+ GN Tx DI1 DI1 DI2 DI2 DI3 DI3 DI4 DI4 KR1 V1 FAN MACHINE LIMIT Fig. 3.o 13

14 ENG MaserAria hree phase POWER SUPPLY 3P+N+T 400V ~ 50 Hz L1 L2 L3 N QS1 QF1 FU1 FLAP EXP IR DI5 B1 B2 B3 DIP A1 KM1 HYVC000V00 valve board A2 HYCT MaserAria conroller GN NO4 GN NO5 NO6 NO6 NO7 NO7 L L N N N NO3 NO2 NO1 GN Tx V+ GN Tx DI1 DI1 DI2 DI2 DI3 DI3 DI4 DI4 V1 FAN KM1 MACHINE LIMIT Key: A1 Main conrol board A2 Expansion board KR1-KM1 Conacor QS1 Main swich QF1 Circui breaker V1 Fan FU1 Fuse Fig. 3.p 3.5 Connecion diagrams MaserAria connecion diagram FLAP EXP IR DI5 B1 B2 B3 DIP HYCT MaserAria conroller serial communicaion L L N N N NO3 NO2 NO1 GN Tx V+ GN Tx DI1 DI1 DI2 DI2 DI3 DI3 DI4 DI4 HYVC000V00 valve board L N remoe summer/ winer SAFETY GN NO4 GN NO5 NO6 NO6 NO7 NO7 valve Vdc valve Vdc conac conac HYPA0010* Fig. 3.q Imporan: Digial inpus 1 and 2 have a fixed configuraion. Digial inpus 3, 4, 5 can be configured. 14

15 Expansion board (accessories) SUPPLY EXP EXP HYVC000T00 DIP DI5 B1 B2 B3 HYCT L L N N N No3 No2 N 3.6 Acqua remoe erminal ENG Avoid insalling he erminal in places where he room emperaure measuremen may be alered: ouside walls, near doors leading o he ouside, exposed o he sun, ec. (he erminal should be fasened o he wall in a horizonal posiion so as o allow he recirculaion of air hrough he slis on he rear cover fasened o he wall). The erminal is fied inside he plasic case and is only accessible by removing he rear shell (see he following figure). N No4 N No5 N No6 N No7 1 Fig. 3.r.a L N Terminal assembly and dimensions 1. boom view: opening ab; 2. fasening holes. DI5 B1 B2 B3 DIP EXP HYVC000M00 HYCT SUPPLY EXP 2 A (res) 10 A (res) L L N N N No3 No2 N N No4 N No5 No6 No6 No7 No7 L N Fig. 3.s.a Fig. 3.r.b DI5 B1 B2 B3 DIP EXP HYVC000R00 HYCT SUPPLY EXP L L N N N No3 No2 N N No4 N No5 No6 No6 No7 No7 L N 83 2 Fig. 3.s.b Fig. 3.r.c Key: 1. mulifuncion volage oupu (riac) 2. mulifuncion relay oupu For he configuraion of he inpus and oupus, see he paragraph on Configuraion. For he echnical specificaions of he componens, see he chaper: Technical specificaions and purchase codes Fig. 3.s.c For he connecion see he connecion diagram. If he emperaure measured by he buil-in sensor needs o be correced (due o insallaion in a posiion ha is no ideal) a fixed value in degrees cenigrade can be added or subraced (see parameer 61 in he able of parameers). 15

16 3.7 Programming key (copy he configuraion) Once having se he parameers (see he paragraph on Configuraion ), he configuraion can be quickly copied o oher MaserAria conrollers using he programming key. Proceed as follows: 1. swich off he previously programmed MaserAria (source); 2. se he dipswiches inside he programming key (underneah he baery cover) o reading mode (dip 1=, dip2= ); 3. inser he key in he 4-pin connecor on he adaper, and connec he 8-wire cable supplied (see Fig. 3.); 4. inser he 8-wire cable from he programming key adaper o he IR connecor on he board; 5. press he buon. The red LED and hen he green LED come on in succession, if he operaion has been compleed successfully. Oher signals indicae problems (see he corresponding insrucion shee); 6. remove he key and he adaper; se he dipswich o wrie mode (dip 1=, dip2= ) and repea seps 3, 4, 5, 6 o wrie he daa o he arge MaserAria; Imporan: o avoid excessively discharging he baeries in he programming key, disconnec he normally closed digial inpus on MaserAria. If his is no possible, use he key wih he power supply. The MaserAria parameers (source) can be copied o arge devices wih he same or laer sofware version. Fig Nework connecion A series of MaserAria devices can be conneced via nework o a supervisor compuer. In his case, a differen address needs o be se for each device (parameer 69= Supervisory nework address). RS485 MaserAria 1 P69 = 1 MaserAria 2 P69 = 2 MaserAria 3 P69 = 3 Fig. 3.u 16

17 4. ADVANCED SETTINGS In summary: fan speed conrol; algorihm o overcome he phenomenon of air sraificaion; anifreeze alarm managemen differeniaed according o he ype of uni; manual operaion: cooling, heaing (opional heaer managemen), dehumidificaion, venilaion; auomaic operaion (opional heaer managemen); room se poin compensaion wih ouside emperaure reading; economy funcion: possibiliy o use a second se poin if he environmen is no occupied (energy saving); he Economy funcion is he same as sleep, wih he difference ha i is acivaed/deacivaed by digial inpu; conrol of / or modulaing valves and dampers: hree-poin or wih 0 o 10 Vdc inpu. MaserAria provides a number of addiional funcions compared o radiional conrollers: 2 digial inpus for remoe / and cooling/ heaing managemen, 3 configurable digial inpus, 3 probes, 4 configurable oupus, 6 dipswiches for rapid cusomisaion on sie, possibiliy of nework connecion for supervision. MaserAria comes wih a family of accessories (see he able of codes) including: he acqua erminal (wih buil-in NTC sensor), he expansion boards wih 4 relay oupus, 4 riac oupus, 2 riac oupus and 2 relay oupus, he RS485 serial board. The following secion shows, in sequence, he descripion of he parameers, from he configuraion of he I/O o he seing of he conrol algorihms. The lis of parameers is shown a he end of he secion. 4.1 Configuraion To selec he ype of air handling uni (AHU)/air heaer uni, proceed as follows: connec he appropriae expansion board, if he board supplied is no suiable for he acuaors used (he board supplied wih he MaserAria elecrical panel has wo 0 o 10 Vdc oupus and wo relay oupus, see he wiring diagram); se he dipswiches on he main conrol board; selec he ype of predefined uni (parameer P91) ha bes suis he applicaion; on he acqua erminal, se he parameers for he inpus/oupus ha differ from he chosen configuraion. Oupus The riac oupu should be preferred over he relay oupu when he acuaor requires coninuous swiching (open/closed), as is he case wih modulaing 3-poin valves. Imporan: Do no se oupus wih opion < = 6 and >6 a he same ime. This is because oupus wih opion > 6 auomaically imply he acivaion of he P+I algorihm, which is no suiable for he on/ off oupus: opions 1,2,5,6. In any case, he following oupus can be used: chiller acivaion signal, boiler-hea pump acivaion signal and alarm. Only one oupu can be se as a heaer. Example: MaserAria wih board wih wo 0 o 10 Vdc oupus and 2 relay oupus: incorrec correc P39 =13 P39 =13 P40 =21 P40 =21 P41 =6 P41 =18 P42 =24 P42 =24 Tab. 4.a.a Imporan: The oupus ha are no used mus be deacivaed (opion 0). Table of oupus Conrol board Expansion board Oupu Descripion Assoc. pars. NO1 Volage oupu (L) for minimum fan speed - NO2 Volage oupu (L) for medium fan speed - NO3 Volage oupu (L) for maximum fan speed - NO4 Mulifuncion oupu (see DIP4) P39 NO5 Mulifuncion oupu (see DIP4 & DIP5) P40 NO6 Mulifuncion oupu P41 NO7 Mulifuncion oupu P42 Tab. 4.a.b The following summary able defines he ype of oupu for each ype of expansion board available. Imporan: if he AHU is from digial inpu, he device canno be configured on he acqua erminal. 17

18 Summary able of MaserAria opions Seing P39, P40, P41, P42 Accessory Expansion board w/ 4 relays HYVC000R00 NO4 (vol. relay) NO5 (vol. relay) NO6 (relay) NO7 (relay) Accessory Expansion board w/ 4 riacs HYVC000T00 NO4 (vol. riac) NO5 (vol. riac) NO6 (vol. riac) NO7 (vol. riac) Supplied wih MaserAria elecrical panel Expansion board w/ 0 o 10 Vdc + relays HYVC000V00 NO4 NO5 NO6 NO7 (0-10 (0-10 (relay) (relay) Vdc) Vdc) Accessory Expansion board w/ 2 riacs + 2 relays HYVC000M00 0 Oupu disabled 1 / cold waer valve (norm. open) 2 / ho waer valve (norm. open) 3 Chiller acivaion signal, cold waer reques (norm. open). Conac closed wih cold/ho waer valve or cold waer valve only acive (open wih valve deacivaed) 4 Boiler, hea pump acivaion signal, ho waer reques (normally open). Conac closed wih cold/ho waer valve or ho waer valve only acive (open wih valve deacivaed) 5 / ho/cold waer valve (normally open). Acivaed wih cooling/ heaing reques from conroller. Off when are boh deacivaed 6 / heaer(normally open) (se parameers P46 & P13) 7 Alarm (normally open) 8 DO NOT SELECT 9 3-poin valve + (clockwise) for cold waer (ho/cold waer if dip4=)* 10 3-poin valve - (aniclockwise) for cold waer (ho/cold waer if dip4=)* 11 3-poin valve + (clockwise) for ho waer (deacivaed if dip4=) * 12 3-poin valve - (aniclockwise) for ho waer (deacivaed if dip4=) * Valve wih 0 o 10 Vdc 13 inpu for cold waer (ho/ cold waer if dip4=) * 14 Valve wih 0 o 10 Vdc inpu for ho waer (deacivaed if dip4 =) * 15 DO NOT SELECT 16 DO NOT SELECT 0 o 10 Vdc oupu for modulaing heaer conrol 17 (from exernal module). Se parameers P111, P117.* Oupu (riac or relay) for 18 man. of / heaers (wih hyseresis) on P+I. Se parameers P111, P112.* Open 3-poin ouside 19 damper* NO4 (vol. riac) NO5 (vol. riac) NO6 (relay 2 A) NO7 (relay 10 A) 18

19 HR HR HR ENG Seing P39, P40, P41, P42 Accessory Expansion board w/ 4 relays HYVC000R00 NO4 (vol. relay) NO5 (vol. relay) NO6 (relay) NO7 (relay) Accessory Expansion board w/ 4 riacs HYVC000T00 NO4 (vol. riac) NO5 (vol. riac) NO6 (vol. riac) NO7 (vol. riac) Supplied wih MaserAria elecrical panel Expansion board w/ 0 o 10 Vdc + relays HYVC000V00 NO4 NO5 NO6 NO7 (0-10 (0-10 (relay) (relay) Vdc) Vdc) Accessory Expansion board w/ 2 riacs + 2 relays HYVC000M00 Close 3-poin ouside 20 damper* 0 o 10 Vdc ouside 21 damper 22 DO NOT SELECT 23 / ouside damper / recovery bypass 24 damper (*) The P+I parameers need o be se Tab. 4.a.c NO4 (vol. riac) NO5 (vol. riac) NO6 (relay 2 A) NO7 (relay 10 A) Seing he dipswiches The defaul seing of all he dipswiches on he main conrol board is off. Se he dipswiches based on he applicaion. Dipswich Seing Noes 1 = enable hea/cool enable funcions (probe B2 on coil). Probe B3 enabled only when DIP1= e DIP4= ; = hea/cool enable funcion disabled 2 = enable digial inpu 2 for cooling/heaing changeover for operaion of he funcion see par. P56: 0 N.C.=Heaing, N.O.=Cooling 1 N.C.=Cooling, N.O.=Heaing = disable digial inpu 2 for cooling/heaing changeover 3 = remoe lock acive funcions disabled: / imer, Sleep. AUTOMATIC operaion override = remoe lock no acive 4 = AHU wih 2 waer coils = AHU wih 1 waer coil 5 = elecric heaer fied = elecric heaer no fied 6 = conrol probe is probe on acqua erminal (BT) = conrol probe chosen from B1, B2 or B3 (mus also correspond o P15, P16 or P17=5) Tab. 4.b Seing he parameers To display and se he parameers, wih device, press he MODE and clear buons for 5 seconds and ener he password 22 using he UP and DOWN buons. Confirm by pressing se. This accesses he user parameers only (U in he able of parameers). AUTO MAN AUTO MAN AUTO MAN Fig. 4.a To display and se he manufacurer parameers (F in he able of parameers), access he programming menu as described above, and ener he second password (PASSWORD = 66) for parameer P92. 19

20 Auomaic configuraion of he inpus/oupus and ype of uni (parameer 91) To simplify configuraion, one of he hree auomaic configuraions can be used (columns Def1, 2, 3 in he able of parameers): Swich he device off by pressing he / buon; Se parameer 91 according o he values shown in he able below. Main board Expansion board Inpus & Oupus P91=44 AHU 100% ouside air 0-10 V valves P91=45 AHU wih recirculaion 0-10 V valves P91=46 AHU wih recirculaion 3-poin valves ID1 / / / ID2 Cooling/Heaing Cooling/Heaing Cooling/Heaing ID3 Serious alarm Serious alarm Serious alarm ID4 Anifreeze alarm Anifreeze alarm Anifreeze alarm ID5 Filer alarm Filer alarm Filer alarm B1 Oule emperaure Oule emperaure Oule emperaure B2 Heaing coil Heaing/cooling Heaing coil emperaure coil emperaure emperaure B3 Ouside Ouside Ouside emperaure emperaure emperaure NO1 Single-speed oule Single-speed oule Single-speed oule fan fan fan NO2 Disabled Disabled Disabled NO3 Disabled Disabled Disabled NO4 Cool valve Heaing / cooling Open heaing / valve cooling valve NO5 Hea valve Ouside air damper Close heaing / cooling valve NO6 Ouside damper Elecric heaer Open ouside air damper NO7 Disabled Bypass damper Close ouside air damper Tab. 4.c Noe: The configuraions corresponding o P91 = 44 and P91 = 45 require he expansion board wih wo 0 o 10 Vdc oupus (sandard in he MaserAria elecrical panel), while he configuraion corresponding o P91 = 46 requires he expansion board wih 4 riacs. Check ha he corresponding inpus and oupus are enabled by dipswich. For example, once having se P91=44, check ha dipswich 4= (see he previous paragraph). Once parameer 91 has been se, he individual seings for he specific applicaion can be changed using he parameers corresponding o he inpus/oupus (see he following paragraphs). Idenifying/seing he model of uni (parameer 124) Once auomaic configuraion has been compleed, make sure ha MaserAria recognises he ype of AHU being managed. The main seing involves he ype of AHU: 100% ouside air; recirculaion. This is se using parameer P124: P124=0 AHU 100% ouside air he anifreeze alarm is acive he conroller sops he fan and swiches off he opional elecric heaer. P124=1 AHU wih recirculaion Fig. 4.b.b In his case, he AHU, as well as aking in air from he ouside, recirculaed he air in he environmen. The anifreeze funcion does no sop he fan and, if an elecric heaer is fied, his is no swiched off. Imporan: The incorrec configuraion of his parameer may cause damage o he AHU! Configuraion of an AHU wih heaing/cooling coil only (dipswich 4 = ) - Configuraion wih P91=45 MaserAria does no disinguish beween coils for heaing or cooling only and mixed coils. The disincion is made by he user, by seing he proporional bands accordingly. Par Descripion Def2 39 Configuraion of oupu NO4 13 = Valve wih 0 o 10 Vdc inpu for cold waer (ho/cold waer if dip4 = ) 40 Configuraion of oupu NO5 21 = 0 o 10 Vdc ouside damper (see P39) 41 Configuraion of oupu NO6 (see P39) 42 Configuraion of oupu NO7 (see P39) 18 = Oupu (riac or relay) for man. of / heaers (wih hyseresis) on P+I. Se parameers P111, P = / recovery bypass damper Tab. 4.d.a If a modulaing valve is used, operaion is esablished by he parameers relaing o he proporional bands. In any case, dipswich 4 mus be. Coil model Parameers Heaing/Cooling P115=xx / P116=xx Heaing only P115=0 / P116=xx Cooling only P115=xx / P116=0 Tab. 4.d.b Fig. 4.b.a Par Descripion Def1 Def2 Def3 Min Max UOM 115 Proporional band for cooling valve C / Proporional band for heaing valve C /10 The AHU wih 100% ouside air has jus one air inle, ha is, from he ouside, and he air in he environmen is no recirculaed. In his case, when 20

21 Configuraion wih elecric heaer MaserAria can manage an elecric heaer wih / or proporional 0 o 10 Vdc conrol. For configuraion: 1. dipswich 4 =, if a 0 o 10 Vdc signal is used (AHU wih 1 coil only, so he oher oupu, NO4 or NO5, is no occupied); 2. dipswich 5 = and configure he oupu wih he parameers P39, P40, P41, P Press he MODE buon unil he display shows he heaer icon. Recommended configuraion probe B1 descripion Inake-reurn probe/ Ouside probe (compensaion) associaed parameers P22, P58, P59, P60 B2 Heaing coil probe P62, P63 B3 Cooling coil probe P64, P65 BT Probe on erminal P61 noes When DIP6 & P22=0: room conrol probe. When DIP6 = room con. probe. Tab. 4.e.a Fig. 4.c Imporan: Oupus NO4 and NO5 are available for he modulaing 0 o 10 Vdc heaers. Oupus NO6 and NO7 are available for / heaers and have volage-free conacs. Imporan: During he anifreeze alarm, only in he case of AHUs wih recirculaion, he heaer remains on unil he emperaure reurns o normal values. This applies o he modulaing 0 o 10 Vdc (P39=17) or / heaer (P39=18), bu no he / heaer wih opion P39=6. Selecing he elecric heaer / heaer There are 2 possibiliies: se P39=18 (or P40, P41, P42) Also se P111 (heaer acivaion dela from se poin) and P112 (hyseresis); se P41=6 (or P42) Also se P46 (heaer acivaion dela from se poin) and P13 (hyseresis). Modulaing heaer Se P39 = 17 (or P40 =17); Se P111 = heaer acivaion dela and P117 = heaer proporional band. Probes The reading of he probes is affeced by heir posiion due o he phenomenon of air sraificaion. To overcome his problem, offses can be specified depending on he operaing mode (heaing or cooling). Fauls wih he conrol probe or he probe on one of he wo hea exchangers cause he fan o sop and he valve o close. The conrol probe is seleced by dipswich. I mus be remembered ha MaserAria performs conrol based on he room emperaure (inake/reurn probe or sensor on he acqua erminal). Prog Descripion Def1 Def2 Def3 Min Max UM 15 Funcion of probe B use defined by dipswich 6 & P22 1 probe disabled 2 heaing/cooling coil probe 3 cooling coil probe 4 heaing coil probe 5 conrol probe (inake/reurn) 6 ouside probe 7 oule probe 16 Funcion of probe B2 (see P15) 17 Funcion of probe B3 (see P15) 22 Selec opional compensaion probe 0 Compensaion disabled 1 Compensaion enabled on B1 = ouside probe 2 Compensaion enabled on B3 = ouside probe 58 probe B1 offse in cooling 59 probe B1 offse in heaing 60 probe B1 offse in AUTOMATIC 61 probe BT offse from erminal 62 probe B2 offse in cooling 63 probe B2 offse in heaing 64 probe B3 offse in cooling 65 probe B3 offse in heaing C/ C/ C/ C/ C/ C/ C/ C/10 CTA Tab. 4.e.b M R 21 Fig. 4.d Key: AHU air handling uni R inake/reurn M oule

22 Digial inpus Digial inpus DI1 and DI2 have a fixed configuraion, while he ohers can be configured by parameer. The off saus of digial inpu DI1 has prioriy over any incoming serial communicaion signals, so ha he user (direcly in conac wih he flow of cold or ho air) can swich he MaserAria uni off. Inpu Descripion Ass. pars. Noes DI1 / inpu when he inpu is closed he uni is swiched o saus (even when here is no nework connecion). When swiching ->, MaserAria is sared however i can hen be swiched off from he erminal or via serial connecion. In saus, he valve is closed and he fan is off (afer any exra flush cycles required for he heaer) DI2 cooling/heaing Enabled when DIP2= DI3 mulifuncion P43 DI4 mulifuncion P44 DI5 mulifuncion P45 Tab. 4.f.a Prog Descripion Def1 Def2 Def3 Min Max UOM 43 Configuraion of digial inpu inpu disabled 1 economy (norm. open) (*) 2 window alarm (norm. open): sops he fan and closes he valve 3 DO NOT SELECT 4 DO NOT SELECT 5 local sop (generic alarm, norm. open): sops he fan and closes he valve 6 economy (norm.closed) 7 window alarm (norm. closed) 8 DO NOT SELECT 9 DO NOT SELECT 10 local sop (generic alarm, normally closed): sops he fan and closes he valve 11 enable anifreeze by ime (normally open) 12 enable anifreeze by ime (normally closed) 13 diry filer alarm from differenial pressure swich (normally open) 14 diry filer alarm from differenial pressure swich (normally closed) 44 Configuraion of digial inpu 4 (see P43) Configuraion of digial inpu 5 (see P43) (*) he economy funcion corresponds o he sleep funcion, however is acivaed by digial inpu. Tab. 4.f.b Imporan: avoid parameer seings ha creae siuaions of conflic (for example, do no configure wo digial inpus on he same MaserAria as economy inpus). Procedure for esing he insallaion Once he insallaion has been compleed, he es procedure can be run o check he devices. The acqua erminal is required for hese funcions. To ener es mode press he UP and DOWN buons for 10 seconds wih he uni conneced o he power supply and in saus; he even is signalled by he buzzer, which emis a beep. The es proceeds in seps, indicaed on he erminal by he message L followed by an incremenal number; pressing he UP buon proceeds o he nex sep (signalled by he BEEPING of he buzzer). Afer he las sep, he procedure ends and he conroller reurns o normal operaion. sep par esed message flashing message no flashing L01 probe B1 probe error probe Ok L02 probe B2 probe error probe Ok L03 probe B3 probe error probe Ok L04 digial inpu 1 inpu open inpu closed L05 digial inpu 2 inpu open inpu closed L06 digial inpu 3 inpu open inpu closed L07 digial inpu 4 inpu open inpu closed L08 digial inpu 5 inpu open inpu closed L09 fan sared a minimum speed, no inernal es L10 fan sared a medium speed, no inernal es L11 fan sared a maximum speed, no inernal es L12 oupu NO4 relay acivaed, volage presen (L). No inernal es L13 oupu NO5 relay acivaed, volage presen (L). No inernal es L14 oupu NO6 relay acivaed, conac closed. No inernal es L15 oupu NO7 relay acivaed, conac closed. No inernal es During operaion (and during he es procedure), he device may generae alarm signals, which are displayed on he erminal. Tab. 4.g 22

23 4.2 Conrol algorihms In summary general funcions: Hea enable, Cool enable, Flush, Exra Flush, P+I emperaure conrol, Freecooling, Freeheaing, oule limi conrol, fan managemen, Auofan or coninuous fan operaion. manual operaion: cooling, heaing (opional heaer managemen), dehumidificaion, venilaion; auomaic operaion: heaing (opional heaer managemen) and cooling; se poin compensaion using ouside probe; On/Off imer (1 ime band) and sleep funcion; conrol of / or modulaing acuaors. Below is a descripion of he operaion of MaserAria, divided ino general funcions, manual and auomaic funcions. Hea enable (heaing/automatic heaing) (parameers 10,11,12,13) In order o avoid undesired flows of cold air, he fan is only operaed if he emperaure of he main coil (e.g. probe B2) is high enough. If his condiion is no saisfied he heaing symbol (sun) flashes. DIPSWITCH1 mus be se o. The fan speed allowed (limiing he reques by he conrol algorihm) is described in he following graph. Key FAN TB FAN max. medium min. P10 P11 P12 P13 fan speed heaing coil emperaure P13 Fig. 4.e P13 TB ( C) When reaching he se poin, he ho/cold waer or ho waer valve only is closed and he fan is sopped. Par. Descripion Def1 Def2 Def3 Min Max UOM P10 Temperaure o enable minimum fan speed in heaing/automatic heaing C P11 Temperaure o enable medium fan speed in heaing/ AUTOMATIC heaing C P12 Temperaure o enable maximum fan speed in heaing/automatic heaing C P13 -Hyseresis o enable fan in heaing/automatic heaing, cooling, AUTOMATIC cooling C/10 -Heaer hyseresis (P39=6) P55 Enable cooling & heaing symbols in AUTOMATIC 0= symbols off 1= symbols on when called Tab. 4.h.1 Imporan: The hea enable funcion mus be disabled if modulaing acuaors are used (0 o 10 Vdc or 3-poin). Cool enable (cooling/automatic cooling, dehumidificaion) (parameers 13,14) FAN P14 In order o avoid undesired flows of ho air, he fan is operaed only if he emperaure of he coil is low enough. If his condiion is no saisfied he cooling symbol (snowflake) flashes. DIPSWITCH1 mus be se o. The fan speed is managed by he conrol algorihms or se manually. P13 TB ( C) Key FAN TB fan cooling coil emperaure Fig. 4.f When reaching he se poin, he ho/cold waer or cold waer valve only is closed and he fan is sopped. Par. Descripion Def1 Def2 Def3 Min Max UOM 13 - Hyseresis o enable fan in heaing/automatic heaing, cooling, AUTOMATIC cooling C/10 - Heaer hyseresis (P39=6) 14 Temperaure o enable fan in cooling/ AUTOMATIC cooling e dehumidificaion C 55 Enable cooling & heaing symbols in AUTOMATIC 0= symbols off 1= symbols on when called Tab. 4.h.2 Imporan: The cool enable funcion mus be disabled if modulaing acuaors are used (0 o 10 Vdc or 3-poin). 23

24 Flush (fan on/off cycles) (parameers 32,33,34) equal o he value of parameer P32. Noe: Funcion acive only if he conrol probe is no probe BT on he acqua erminal. FAN min. To overcome he phenomenon of air sraificaion, MaserAria operaes fan on/off cycles a minimum speed, even when he room emperaure has reached he se poin (he local/ho/cold valve remains closed). This helps ensure he correc measuremen of he room emperaure if he sensor on he acqua erminal is no used (e.g.: conrol probe = B1). The behaviour can be modified depending on he operaing mode: heaing, cooling, dehumidificaion or AUTOMATIC. The fan is sared afer a period of inaciviy (due o he se poin having been reached), Key FAN fan ime P32 P33 P32 P33 Fig. 4.g Par. Descripion Def1 Def2 Def3 Min Max UOM 32 Flush off ime min 0 Disabled >0 Fan off ime 33 Flush on ime 0 Disabled >0 Fan on ime 34 Flush mode 0 Funcion disabled 1 Flush funcion acive in cooling, dehumidificaion & AUTOMATIC 2 Flush funcion acive in heaing & AUTOMATIC (*) 3 Flush funcion acive in heaing, cooling, dehumidificaion & AUTOMATIC (*) s AUTOMATIC (*)= uni in auomaic mode and off because he emperaure measured by he conrol probe is inside he dead band (P109) around he se poin Tab. 4.h.3 Exra Flush (parameer 35) Noe: Funcion acive only if he conrol probe is no probe BT on he acqua erminal. This funcion ensures correc operaion when he acqua erminal is no fied (e.g.: conrol probe = B1), overcoming he phenomenon of air sraificaion. Whenever swiching from -> or changing operaing mode, MaserAria runs a fan cycle a minimum speed (for he ime P35) o make sure he room emperaure is uniform. A he end of his inerval, normal operaion resumes. This is especially useful in he even of auomaic operaion. Manual fan speed seing min. med. max. Fig. 4.i.a Auomaic fan speed seing AUTOFAN funcion (see he corresponding paragraph) AUTO Fan operaing modes (parameer 118) The MaserAria can manage 3 ypes of fan operaion: 3 speed: he fan sops when reaching he se poin, (emperaure measured by he conrol probe inside he dead band). In his mode, one of he hree speeds (min., med., max.) can be se manually, by pressing he fan buon, or alernaively AUTOFAN, wih auomaic managemen of he speed by he conroller. Fig. 4.i.b Minimum speed: he fan only works a minimum speed, sopping when reaching he se poin (conrol emperaure inside he dead band, P109). Consan single speed: fan operaing coninuously a single speed, excep in he even of alarms or when he AHU is shu down. Par Descripion Def1 Def2 Def3 Min Max U.M 118 Fan mode speed 1 minimum speed 2 coninuous singlespeed (normally used for AHUs) Tab. 4.h.4 Fig. 4.h 24

25 Key: AHU AL FAN CTA AL FAN P35 Air Handling Uni shudown alarm fan ime Fig. 4.i.c The par in grey of he fan graph indicaes ha exra flush is only performed if he elecric heaer was on before he AHU is shu down. Prog Descripion Def1 Def2 Def3 Min Max UOM 35 Flush ime when s changing mode 48 Exra flush ime wih heaer s Tab. 4.h.5 Auofan (fan speed selecion based on he room emperaure) (parameers 7,8,9,118) P48 Noe: Funcion only acive when P118=0 From he hardware poin of view, he hree speeds are managed by he hree oupus NO1, NO2, NO3 on he MaserAria main conrol board. To acivae he Auofan funcion, press he fan buon on he acqua erminal unil displaying AUTO nex he fan icon. The Auofan funcion esablishes he fan speed when here is no manual seing by he user. In cooling and heaing mode, he speed is higher he furher he room emperaure is away from he se poin (including AUTOMATIC cooling, AUTOMATIC heaing). In venilaion mode, he speed is consan a he average value for he range se by parameers P30, P31, P06 (see he corresponding paragraph). In dehumidificaion mode, he speed is consan a he minimum value. Key H C TA max. medium min. P09 P09 P08 H heaing cooling room emperaure ( C) P09 P07 se poin Fig. 4.j P09 P07 P09 C P08 P09 TA ( C) Par Descripion Def1 Def2 Def3 Min Max U.M 07 Medium speed dela in C/10 Auo Fan 08 Maximum speed dela in C/10 Auo Fan 09 Fan speed hyseresis in C/10 Auo Fan 118 Fan mode speed 1 minimum speed 2 coninuous singlespeed (normally used for AHUs) Comfor (parameer 36) Tab. 4.h.6 This funcion, if acivaed by P36, disables modificaion of he se poin, allowing jus a ±3 C offse (in heaing, cooling, dehumidificaion and AUTOMATIC mode). The se poin can be se by serial connecion (see he corresponding paragraph) or on he acqua erminal, for parameer P01. Par Descripion Def1 Def2 Def3 Min Max UOM 36 Selec AUTOMATIC wih se poin or Comfor Comfor funcion disabled (se poin P01 can be changed from acqua erminal) 1 Enable Comfor (only ± 3 C change in se poin from P01) P and P+I algorihm (parameers 110,111,113,114,115,116,117) MaserAria feaures a P+I algorihm ha is used o conrol modulaing valves and dampers (0 o 10 Vdc and 3 poin). Conrol can be performed on he BT probe on he acqua erminal or on he inake/reurn probe ha can be assigned o one of he hree MaserAria probes, by seing he corresponding parameer. The P+I algorihm is acivaed by enabling one of he modulaing valve oupus and seing he proporional band and inegraion ime parameers. To sar an acuaor wih a delay from he previous device, use he acivaion dela, which defines he poin of acivaion of a device wih reference o he previous. For example, o acivae he cold waer valve a se poin + 4 C, simply se he cold waer valve acivaion dela, P113=40 (he uni of measure is C/10). The parameers for heaing have a similar meaning. The following evens are defined, wih he respecive condiions for acivaion: OPENING: room emperaure increasing in cooling room emperaure decreasing in heaing CLOSING: room emperaure decreasing in cooling room emperaure increasing in heaing When OPENING in heaing, he acivaion sequence is: 1-Damper, 2-Heaing valve, 3-Heaer (*). When OPENING in cooling he acivaion sequence is: 1-Damper, 2-Cold waer valve When CLOSING in heaing he acivaion sequence is: 1-Heaer(*) 2-Heaing valve, 3-Damper. When CLOSING in cooling he acivaion sequence is: 1-Cold waer valve, 2-Damper. This can be considered a LIFO sequence (Las In, Firs Ou) Proporional conrol - P 25