INSTALLATION AND OPERATION MANUAL

Transcription

1 INSTALLATION AN OPERATION MANUAL EUWA5FBZW1 EUWA8FBZW1 EUWA10FBZW1

2 B G E F L L 15 N P O H I J K Q R A B E F G H I J K L M N O P Q R EUWA5FZ (mm) EUWA8FZ (mm) EUWA10FZ (mm)

3 E - ATITIKTIES-EKLARAIJA E - ATBILSTĪBAS-EKLARĀIJA E - VYHLÁSENIE-ZHOY E - UYUMLULUK-BİLİRİSİ E - IZJAVA O SKLANOSTI E - VASTAVUSEKLARATSIOON E - ДЕКЛАРАЦИЯ-ЗА-СЪОТВЕТСТВИЕ E - IZJAVA-O-USKLAĐENOSTI E - MEGFELELŐSÉGI-NYILATKOZAT E - EKLARAJA-ZGONOŚI E - ELARAŢIE-E-ONFORMITATE E - ERKLÆRING OM-SAMSVAR E - ILMOITUS-YHENMUKAISUUESTA E - PROHLÁŠENÍ-O-SHOĚ E - ELARAÇÃO-E-ONFORMIAE СЕ - ЗАЯВЛЕНИЕ-О-СООТВЕТСТВИИ E - OPFYLELSESERKLÆRING E - FÖRSÄKRAN-OM-ÖVERENSTÄMMELSE E - ELARAION-E-ONFORMIA E - IHIARAZIONE-I-ONFORMITA E - H ø H YMMOPºø H E - ELARATION-OF-ONFORMITY E - KONFORMITÄTSERKLÄRUNG E - ELARATION-E-ONFORMITE E - ONFORMITEITSVERKLARING 17 m deklaruje na własną i wyłączną odpowiedzialność, że modele klimatyzatorów, których dotyczy niniejsza deklaracja: 18 r declară pe proprie răspundere că aparatele de aer condiţionat la care se referă această declaraţie: 19 o z vso odgovornostjo izjavlja, da so modeli klimatskih naprav, na katere se izjava nanaša: 20 x kinnitab oma täielikul vastutusel, et käesoleva deklaratsiooni alla kuuluvad kliimaseadmete mudelid: 21 b декларира на своя отговорност, че моделите климатична инсталация, за които се отнася тази декларация: 22 t visiška savo atsakomybe skelbia, kad oro kondicionavimo prietaisų modeliai, kuriems yra taikoma ši deklaracija: 23 v ar pilnu atbildību apliecina, ka tālāk uzskaitīto modeįu gaisa kondicionētāji, uz kuriem attiecas šī deklarācija: 24 k vyhlasuje na vlastnú zodpovednosť, že tieto klimatizačné modely, na ktoré sa vzťahuje toto vyhlásenie: 25 w tamamen kendi sorumluluğunda olmak üzere bu bildirinin ilgili olduğu klima modellerinin aşağıdaki gibi olduğunu beyan eder: 09 u заявляет, исключительно под свою ответственность, что модели кондиционеров воздуха, к которым относится настоящее заявление: 10 q erklærer under eneansvar, at klimaanlægmodellerne, som denne deklaration vedrører: 11 s deklarerar i egenskap av huvudansvarig, att luftkonditioneringsmodellerna som berörs av denna deklaration innebär att: 12 n erklærer et fullstendig ansvar for at de luftkondisjoneringsmodeller som berøres av denne deklarasjon innebærer at: 13 j ilmoittaa yksinomaan omalla vastuullaan, että tämän ilmoituksen tarkoittamat ilmastointilaitteiden mallit: 14 c prohlašuje ve své plné odpovědnosti, že modely klimatizace, k nimž se toto prohlášení vztahuje: 15 y izjavljuje pod isključivo vlastitom odgovornošću da su modeli klima uređaja na koje se ova izjava odnosi: 16 h teljes felelőssége tudatában kijelenti, hogy a klímaberendezés modellek, melyekre e nyilatkozat vonatkozik: aikin Europe N.V. 01 a declares under its sole responsibility that the air conditioning models to which this declaration relates: 02 d erklärt auf seine alleinige Verantwortung daß die Modelle der Klimageräte für die diese Erklärung bestimmt ist: 03 f déclare sous sa seule responsabilité que les appareils d'air conditionné visés par la présente déclaration: 04 l verklaart hierbij op eigen exclusieve verantwoordelijkheid dat de airconditioning units waarop deze verklaring betrekking heeft: 05 e declara baja su única responsabilidad que los modelos de aire acondicionado a los cuales hace referencia la declaración: 06 i dichiara sotto sua responsabilità che i condizionatori modello a cui è riferita questa dichiarazione: 07 g ËÏÒÓÂÈ Ì appleôîïâèûùèî ÙË Â ı ÓË fiùè Ù ÌÔÓÙ Ï ÙˆÓ ÎÏÈÌ ÙÈÛÙÈÎÒÓ Û ÛΠÒÓ ÛÙ ÔappleÔ Ó Ê ÚÂÙ È Ë apple ÚÔ Û ÏˆÛË: 08 p declara sob sua exclusiva responsabilidade que os modelos de ar condicionado a que esta declaração se refere: EUWA5FBZW1***, EUWA8FBZW1***, EUWA10FBZW1***, * =,, -, 1, 2, 3,..., 9, A, B,,..., Z 16 megfelelnek az alábbi szabvány(ok)nak vagy egyéb irányadó dokumentum(ok)nak, ha azokat előírás szerint használják: 17 spełniają wymogi następujących norm i innych dokumentów normalizacyjnych, pod warunkiem że używane są zgodnie z naszymi instrukcjami: 18 sunt în conformitate cu următorul (următoarele) standard(e) sau alt(e) document(e) normativ(e), cu condiţia ca acestea să fie utilizate în conformitate cu instrucţiunile noastre 19 skladni z naslednjimi standardi in drugimi normativi, pod pogojem, da se uporabljajo v skladu z našimi navodili: 20 on vastavuses järgmis(t)e standardi(te)ga või teiste normatiivsete dokumentidega, kui neid kasutatakse vastavalt meie juhenditele: 21 съответстват на следните стандарти или други нормативни документи, при условие, че се използват съгласно нашите инструкции: 22 atitinka žemiau nurodytus standartus ir (arba) kitus norminius dokumentus su sąlyga, kad yra naudojami pagal mūsų nurodymus: 23 tad, ja lietoti atbilstoši ražotāja norādījumiem, atbilst sekojošiem standartiem un citiem normatīviem dokumentiem: 24 sú v zhode s nasledovnou(ými) normou(ami) alebo iným(i) normatívnym(i) dokumentom(ami), za predpokladu, že sa používajú v súlade s našim návodom: 25 ürünün, talimatlarımıza göre kullanılması koşuluyla aşağıdaki standartlar ve norm belirten belgelerle uyumludur: 08 estão em conformidade com a(s) seguinte(s) norma(s) ou outro(s) documento(s) normativo(s), desde que estes sejam utilizados de acordo com as nossas instruções: 09 соответствуют следующим стандартам или другим нормативным документам, при условии их использования согласно нашим инструкциям: 10 overholder følgende standard(er) eller andet/andre retningsgivende dokument(er), forudsat at disse anvendes i henhold til vore instrukser: 11 respektive utrustning är utförd i överensstämmelse med och följer följande standard(er) eller andra normgivande dokument, under förutsättning att användning sker i överensstämmelse med våra instruktioner: 12 respektive utstyr er i overensstemmelse med følgende standard(er) eller andre normgivende dokument(er), under forutssetning av at disse brukes i henhold til våre instrukser: 13 vastaavat seuraavien standardien ja muiden ohjeellisten dokumenttien vaatimuksia edellyttäen, että niitä käytetään ohjeidemme mukaisesti: 14 za předpokladu, že jsou využívány v souladu s našimi pokyny, odpovídají následujícím normám nebo normativním dokumentům: 15 u skladu sa slijedećim standardom(ima) ili drugim normativnim dokumentom(ima), uz uvjet da se oni koriste u skladu s našim uputama: 01 are in conformity with the following standard(s) or other normative document(s), provided that these are used in accordance with our instructions: 02 der/den folgenden Norm(en) oder einem anderen Normdokument oder -dokumenten entspricht/entsprechen, unter der Voraussetzung, daß sie gemäß unseren Anweisungen eingesetzt werden: 03 sont conformes à la/aux norme(s) ou autre(s) document(s) normatif(s), pour autant qu'ils soient utilisés conformément à nos instructions: 04 conform de volgende norm(en) of één of meer andere bindende documenten zijn, op voorwaarde dat ze worden gebruikt overeenkomstig onze instructies: 05 están en conformidad con la(s) siguiente(s) norma(s) u otro(s) documento(s) normativo(s), siempre que sean utilizados de acuerdo con nuestras instrucciones: 06 sono conformi al(i) seguente(i) standard(s) o altro(i) documento(i) a carattere normativo, a patto che vengano usati in conformità alle nostre istruzioni: 07 Â Ó È Û ÌÊˆÓ Ì ÙÔ( ) ÎfiÏÔ ıô( ) appleúfiù appleô( ) ÏÏÔ ÁÁÚ ÊÔ( ) Î ÓÔÓÈÛÌÒÓ, applefi ÙËÓ appleúô applefiıâûë fiùè ÚËÛÈÌÔappleÔÈÔ ÓÙ È Û ÌÊˆÓ Ì ÙÈ Ô ËÁ Â Ì : EN , 19 irektive z vsemi spremembami. 20 irektiivid koos muudatustega. 21 Директиви, с техните изменения. 22 irektyvose su papildymais. 23 irektīvās un to papildinājumos. 24 Smernice, v platnom znení. 25 eğiştirilmiş halleriyle Yönetmelikler. 10 irektiver, med senere ændringer. 11 irektiv, med företagna ändringar. 12 irektiver, med foretatte endringer. 13 irektiivejä, sellaisina kuin ne ovat muutettuina. 14 v platném znění. 15 Smjernice, kako je izmijenjeno. 16 irányelv(ek) és módosításaik rendelkezéseit. 17 z późniejszymi poprawkami. 18 irectivelor, cu amendamentele respective. 01 irectives, as amended. 02 irektiven, gemäß Änderung. 03 irectives, telles que modifiées. 04 Richtlijnen, zoals geamendeerd. 05 irectivas, según lo enmendado. 06 irettive, come da modifica. 07 ËÁÈÒv, fiappleˆ Ô Ó ÙÚÔappleÔappleÔÈËıÂ. 08 irectivas, conforme alteração em. 09 Директив со всеми поправками. ** * Machinery 2006/42/E Electromagnetic ompatibility 2004/108/E 19 ob upoštevanju določb: 20 vastavalt nõuetele: 21 следвайки клаузите на: 22 laikantis nuostatų, pateikiamų: 23 ievērojot prasības, kas noteiktas: 24 održiavajúc ustanovenia: 25 bunun koşullarına uygun olarak: 10 under iagttagelse af bestemmelserne i: 11 enligt villkoren i: 12 gitt i henhold til bestemmelsene i: 13 noudattaen määräyksiä: 14 za dodržení ustanovení předpisu: 15 prema odredbama: 16 követi a(z): 17 zgodnie z postanowieniami yrektyw: 18 în urma prevederilor: 01 following the provisions of: 02 gemäß den Vorschriften der: 03 conformément aux stipulations des: 04 overeenkomstig de bepalingen van: 05 siguiendo las disposiciones de: 06 secondo le prescrizioni per: 07 Ì ٠ÚËÛË Ùˆv È Ù Íˆv Ùˆv: 08 de acordo com o previsto em: 09 в соответствии с положениями: <A> AIKIN.TF.003E1/ <B> KEMA (NB0344) <> KRQ/EM Забележка * както е изложено в <A> и оценено положително от <B> съгласно ертификата <>. 22 Pastaba * kaip nustatyta <A> ir kaip teigiamai nuspręsta <B> pagal Sertifikatą <>. 23 Piezīmes * kā norādīts <A> un atbilstoši <B> pozitīvajam vērtējumam saskaņā ar sertifikātu <>. 24 Poznámka * ako bolo uvedené v <A> a pozitívne zistené <B> v súlade s osvedčením <>. 25 Not * <A> da belirtildiği gibi ve <> Sertifikasına göre <B> tarafından olumlu olarak değerlendirildiği gibi. 16 Megjegyzés * a(z) <A> alapján, a(z) <B> igazolta a megfelelést, a(z) <> tanúsítvány szerint. 17 Uwaga * zgodnie z dokumentacją <A>, pozytywną opinią <B> i Świadectwem <>. 18 Notă * aşa cum este stabilit în <A> şi apreciat pozitiv de <B> în conformitate cu ertificatul <>. 19 Opomba * kot je določeno v <A> in odobreno s strani <B> v skladu s certifikatom <>. 20 Märkus * nagu on näidatud dokumendis <A> ja heaks kiidetud <B> järgi vastavalt sertifikaadile <>. 11 Information * enligt <A> och godkänts av <B> enligt ertifikatet <>. 12 Merk * som det fremkommer i <A> og gjennom positiv bedømmelse av <B> ifølge Sertifikat <>. 13 Huom * jotka on esitetty asiakirjassa <A> ja jotka <B> on hyväksynyt Sertifikaatin <> mukaisesti. 14 Poznámka * jak bylo uvedeno v <A> a pozitivně zjištěno <B> v souladu s osvědčením <>. 15 Napomena * kako je izloženo u <A> i pozitivno ocijenjeno od strane <B> prema ertifikatu <>. 06 Nota * delineato nel <A> e giudicato positivamente da <B> secondo il ertificato <>. 07 ËÌ ˆÛË * fiappleˆ Î ıôú ÂÙ È ÛÙÔ <A> Î È ÎÚ ÓÂÙ È ıâùèî applefi ÙÔ <B> Û ÌÊˆÓ Ì ÙÔ ÈÛÙÔappleÔÈËÙÈÎfi <>. 08 Nota * tal como estabelecido em <A> e com o parecer positivo de <B> de acordo com o ertificado <>. 09 Примечание * как указано в <A> и в соответствии с положительным решением <B> согласно Свидетельству <>. 10 Bemærk * som anført i <A> og positivt vurderet af <B> i henhold til ertifikat <>. 01 Note * as set out in <A> and judged positively by <B> according to the ertificate <>. 02 Hinweis * wie in der <A> aufgeführt und von <B> positiv beurteilt gemäß Zertifikat <>. 03 Remarque * tel que défini dans <A> et évalué positivement par <B> conformément au ertificat <>. 04 Bemerk * zoals vermeld in <A> en positief beoordeeld door <B> overeenkomstig ertificaat <>. 05 Nota * como se establece en <A> y es valorado positivamente por <B> de acuerdo con el ertificado <>. 19 ** aikin Europe N.V. je pooblaščen za sestavo datoteke s tehnično mapo. 20 ** aikin Europe N.V. on volitatud koostama tehnilist dokumentatsiooni. 21 ** aikin Europe N.V. е оторизирана да състави Акта за техническа конструкция. 22 ** aikin Europe N.V. yra įgaliota sudaryti šį techninės konstrukcijos failą. 23 ** aikin Europe N.V. ir autorizēts sastādīt tehnisko dokumentāciju. 24 ** Spoločnosť aikin Europe N.V. je oprávnená vytvoriť súbor technickej konštrukcie. 25 ** aikin Europe N.V. Teknik Yapı osyasını derlemeye yetkilidir. 13 ** aikin Europe N.V. on valtuutettu laatimaan Teknisen asiakirjan. 14 ** Společnost aikin Europe N.V. má oprávnění ke kompilaci souboru technické konstrukce. 15 ** aikin Europe N.V. je ovlašten za izradu atoteke o tehničkoj konstrukciji. 16 ** A aikin Europe N.V. jogosult a műszaki konstrukciós dokumentáció összeállítására. 17 ** aikin Europe N.V. ma upoważnienie do zbierania i opracowywania dokumentacji konstrukcyjnej. 18 ** aikin Europe N.V. este autorizat să compileze osarul tehnic de construcţie. 07 ** aikin Europe N.V. Â Ó È ÂÍÔ ÛÈÔ ÔÙËÌ ÓË Ó Û ÓÙ ÍÂÈ ÙÔÓ Â ÓÈÎfi Ê ÎÂÏÔ Î Ù ÛÎÂ. 08 ** A aikin Europe N.V. está autorizada a compilar a documentação técnica de fabrico. 09 ** Компания aikin Europe N.V. уполномочена составить Комплект технической документации. 10 ** aikin Europe N.V. er autoriseret til at udarbejde de tekniske konstruktionsdata. 11 ** aikin Europe N.V. är bemyndigade att sammanställa den tekniska konstruktionsfilen. 12 ** aikin Europe N.V. har tillatelse til å kompilere den Tekniske konstruksjonsfilen. 01 ** aikin Europe N.V. is authorised to compile the Technical onstruction File. 02 ** aikin Europe N.V. hat die Berechtigung die Technische Konstruktionsakte zusammenzustellen. 03 ** aikin Europe N.V. est autorisé à compiler le ossier de onstruction Technique. 04 ** aikin Europe N.V. is bevoegd om het Technisch onstructiedossier samen te stellen. 05 ** aikin Europe N.V. está autorizado a compilar el Archivo de onstrucción Técnica. 06 ** aikin Europe N.V. è autorizzata a redigere il File Tecnico di ostruzione. Jean-Pierre Beuselinck General Manager Ostend, 1st of July PW

4 EUWA5FBZW1 EUWA8FBZW1 EUWA10FBZW1 Installation and operation manual ONTENTS Page Installing the unit... 1 Introduction... 1 Options and features... 2 Options... 2 Features... 2 Technical specifications... 2 Electrical specifications... 2 Options and features... 2 Standard operation range... 2 Main components... 2 Selection of location... 3 Inspecting and handling the unit... 3 Unpacking and placing the unit... 3 Important information regarding the refrigerant used... 3 hecking the water circuit... 4 onnecting the water circuit... 4 Water charge, flow and quality... 4 Piping insulation... 4 Field wiring... 5 Parts table... 5 Power circuit and cable requirements... 5 onnection of the packaged air-cooled water chiller power supply... 5 Point for attention regarding quality of the public electric power supply... 5 able for flow switch... 5 How to continue... 5 Operating the unit... 6 Introduction... 6 escription... 6 Function of the main components... 6 Safety devices... 7 Measuring devices... 7 Internal wiring - Parts table... 7 Before operation... 8 hecks before initial start-up... 8 Water supply... 8 Power supply connection and crankcase heating... 8 General recommendations... 8 Operation... 8 igital controller... 9 Working with the units Advanced features of the digital controller BMS connection modbus General description of Modbus Implemented error code efining the BMS setting Variables database Troubleshooting Maintenance Important information regarding the refrigerant used Maintenance activities isposal requirements Menu overview Annex I...21 Saturated temperature Annex II...21 alculation of external pressure drop Annex III...22 Fan characteristics Thank you for purchasing this aikin air conditioner. The English text is the original instruction. Other languages are translations of the original instructions. This appliance is not intended for use by persons, including children, with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. hildren should be supervised to ensure that they do not play with the appliance. INSTALLING THE UNIT REA THIS MANUAL ATTENTIVELY BEFORE STARTING UP THE UNIT. O NOT THROW THIS MANUAL AWAY. KEEP IT IN YOUR FILES FOR FUTURE REFERENE. IMPROPER INSTALLATION OR ATTAHMENT OF EQUIPMENT OR AESSORIES OUL RESULT IN ELETRI SHOK, SHORT-IRUIT, LEAKS, FIRE OR OTHER AMAGE TO THE EQUIPMENT. BE SURE ONLY TO USE AESSORIES MAE BY AIKIN WHIH ARE SPEIFIALLY ESIGNE FOR USE WITH THE EQUIP- MENT AN HAVE THEM INSTALLE BY A PROFES- SIONAL. IF UNSURE OF INSTALLATION PROEURES OR USE, ALWAYS ONTAT YOUR AIKIN EALER FOR AVIE AN INFORMATION. INTROUTION The aikin EUWA-FBZW1 packaged air-cooled water chillers are designed for indoor installation and used for cooling applications only. The units are available in 3 standard sizes with nominal cooling capacities ranging from 11.2 to 22.6 kw. The EUWA packaged air-cooled water chillers can be combined with aikin fan coil units or air handling units for air conditioning purposes.they can also be used for supplying water for process cooling. The present installation chapter describes the procedures for unpacking, installing and connecting the EUWA units. 1 EUWA5~10FBZW1

5 OPTIONS AN FEATURES Refer to the engineering data book for the complete list of specifications, options and features. Options Glycol application for chilled water temperature down to 10 or 5. BMS-connection MOBUS (optional kit address card EKA10) (1) Remote user interface (optional kit EKRUMA). (Necessary to additionally install kit address card EKA10.) (1) Features Options and features (3) Options Glycol application for chilled water temperature down to 10 or 5. (**) (**) o not use internally Zinc-coated or galvanized steel pipes for the additional waterpiping. BMS-connection (MOBUS/J-BUS, BANET) Remote user controller (optional kit EKRUMA) Features Lower ambient temperature operation ( 10 B) due to integrated head pressure control. Voltage free contacts - general operation - alarm - operation compressor 1 hangeable remote inputs Following functions can be assigned to a total of 1 digital input. - remote start/stop - dual setpoint Standard operation range A E F Technical specifications (2) 0 Model EUWA imensions HxWx (mm) Electrical specifications (2) 1345x 795x x 1125x x 1275x605 Weight Machine weight (kg) Operation weight (kg) onnections Water inlet FBSP 1 FBSP 1 FBSP 1 Water outlet FBSP 1 FBSP 1 FBSP 1 Water drain (mm) Maximal E.S.P. (*) (*) E.S.P.=External Static Pressure (Pa) Model EUWA Power circuit Phase 3N~ Frequency (Hz) 50 Voltage (V) 400 Voltage tolerance (%) ± A B E F Standard operation range Protect the water piping against water freezing during winter period Outdoor ambient temperature ( B) Leaving water temperature evaporator ( ) Glycol Water For nominal E.S.P. of 60 Pa (8 Hp) and of 72 Pa (10 Hp) For E.S.P. of 150 Pa (8+10 Hp only) MAIN OMPONENTS (See figure 1) ZL ZH 1 Upper service plate 2 Lower service plate 3 Water inlet connection 4 Water outlet connection 5 Power supply intake 6 igital controller 7 rain outlet 8 Low pressure gauge (suction pressure) 9 High pressure gauge (discharge pressure) 10 Air inlet ducting flanges 11 Air outlet ducting flanges 12 Identification plate B (1) When EKA10 is used in combination with remote user controller EKRUMA then it is not possible to use the BMS-connection MOBUS. (2) Refer to the chapter Operating the unit or engineering data book for the complete list of specifications and options. EUWA5~10FBZW1 (3) Refer to the chapter Operating the unit or engineering data book for the complete list of specifications and options. 2

6 SELETION OF LOATION The EUWA unit should be installed in a location that meets the following requirements: 1 The foundation is strong enough to support the weight of the unit and the floor is flat to prevent vibration and noise generation. 2 The space around the unit is adequate for servicing and the minimum space for air inlet and air outlet is available. (See figure 2 and figure 3.) If several units are being installed side by side in parallel, the minimum service space between them must be taken into account. 3 There is no danger of fire due to leakage of inflammable gas. 4 Select the location of the unit in such a way that neither the discharged air nor the sound generated by the unit disturb anyone. 5 Make sure that the air inlet and outlet of the unit are not positioned towards the main wind direction. Frontal wind will disturb the operation of the unit. If necessary, use a windscreen to block the wind. 6 Ensure that water cannot cause any damage to the location in case it drips out of the unit (e.g. in case of a blocked drain pipe). 7 A drain is provided and there is enough space to install a trap with a minimum fall of 75 mm between the drain outlets of the unit and the drain. The equipment is not intended for use in a potentially explosive atmosphere. INSPETING AN HANLING THE UNIT The EUWA units are packed in a cardboard box and attached on a wooden pallet. At delivery, the package should be checked and any damage should be reported immediately to the carrier claims agent. When handling the unit, take into account the following: 1. Follow the instructions marked by the symbols on the package: Fragile, handle the unit with care. Keep the unit upright in order to avoid compressor damage. o not use straps to move the unit. 75 mm 2. Lift the unit preferably with a fork-lift, a manual pallet mover or a crane and belts. 3. When lifting the unit with a crane, always use protectors to prevent belt damage and pay attention to the position of the unit s centre of gravity. 4. Bring the unit as close to its final installation position in its original package to prevent damage during transport. UNPAKING AN PLAING THE UNIT 1 ut the straps and remove the cardboard box from the unit. 2 Remove the four screws fixing the unit to the pallet. 3 Lift the unit from the pallet and place it on its installation position. 4 onnect the air inlet (lower part of the unit) to the air inlet ducting and the air outlet (upper part of the unit) to the air outlet ducting. Always provide a flexible connection between the ducting flanges of the unit and the ducts to prevent vibrations and noise generation. NOTE 5 Fasten the unit in place using four anchor bolts. 6 Remove the upper and lower service plate. 7 onnect the drain outlet at one side to the drain. Provide a trap with a minimum fall of 75 mm in the drain pipe to prevent that the negative pressure, produced by the fan, disturbs the drain (refer to figure in chapter "Selection of location" on page 3). IMPORTANT INFORMATION REGARING THE REFRIGERANT USE Ensure that a protective guard is installed in front of the air outlet to prevent that the fan blades be touched. The protection must comply with relevant European and national regulations. When connecting the unit to the ducting, a pressure drop will be created and the air flow will be reduced. The total external pressure drop may not exceed 100 Pa for the EUWA5 and 150 Pa for the EUWA8+10. (For external pressure drop calculation, refer to "Annex II" on page 21) The fan pulley has been factory set to work with an external static pressure of 0 to 150 Pa for the 8 and 10 Hp models. Other pulley settings are possible for lowering the airflow and thus reducing the sound level of the unit. But lowering the airflow may lead to reduced performance (refer to "Troubleshooting" on page 17). Also refer to "Annex III" on page 22 for the fan characteristics. This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. o not vent gases into the atmosphere. Refrigerant type: R407 GWP (1) value: (1) GWP = global warming potential The refrigerant quantity is indicated on the unit name plate. 3 EUWA5~10FBZW1

7 HEKING THE WATER IRUIT The EUWA units are equipped with a water inlet and water outlet for connection to a chilled water circuit. This circuit must be provided by a licensed technician and must comply with all relevant European and national regulations. Before continuing the installation of the EUWA, check the following points: 1 A circulation pump must be provided in such a way that it discharges the water directly into the evaporator. A voltage-free contact is provided in the switch box to steer the pump. 2 A flow switch must be installed in the water outlet pipe to prevent the unit from operating at a water flow which is too low. A terminal is provided in the switch box for the electrical connection of the flow switch. 3 A wire mesh strainer must be installed at the pump suction to protect the pump and the heat exchanger from foreign matter. The mesh size has to be between 0.5 and 1.5 mm. 4 rain taps must be provided at all low points of the system to permit complete drainage of the circuit during maintenance or in case of shut down. 5 Air vents must be provided at all high points of the system. The vents should be located at points which are easily accessible for servicing. The water inlet pipe is specially designed to obtain a complete air purge of the evaporator. 6 Provide adequate safeguards in the water circuit to make sure that the water pressure will never exceed the maximum allowable working pressure. ONNETING THE WATER IRUIT Piping connections (water inlet and outlet) must be made from the right side of the water chiller. (See figure 1) If air, moisture or dust get in the water circuit, problems may occur. Therefore, always take into account the following when connecting the water circuit: 1. Use clean pipes only. 2. Hold the pipe end downwards when removing burrs. 3. over the pipe end when inserting it through a wall so that no dust and dirt enter. WATER HARGE, FLOW AN QUALITY The water quality must be in accordance with the specifications listed in the table below. PIPING INSULATION circulating water The complete water circuit, inclusive all piping, must be insulated to prevent condensation and reduction of the cooling capacity. Take into account the following points when insulating the piping: 1 Provide a separate insulation for the water inlet and the water outlet piping. 2 Thoroughly insulate around the pipe connections. tendency if out of criteria supply water Items to be controlled ph at ~ ~8.0 corrosion + scale Electrical conductivity [ms/m] <40 <30 corrosion + scale at 25 hloride ion [mg l - /l] <50 <50 corrosion Sulphate ion [mg SO 4 2- /l] <50 <50 corrosion M-alkalinity (ph4.8) [mg ao 3 /l] <50 <50 scale Total hardness [mg ao 3 /l] <70 <70 scale alcium hardness [mg ao 3 /l] <50 <50 scale Silica ion [mg SiO 2 /l] <30 <30 scale Items to be referred to Iron [mg Fe/l] <1.0 <0.3 corrosion + scale opper [mg u/l] <1.0 <0.1 corrosion Sulphide ion [mg S 2- /l] not detectable not detectable corrosion Ammonium ion [mg NH 4 + /l] <1.0 <0.1 corrosion Remaining chloride [mg l/l] <0.3 <0.3 corrosion Free carbide [mg O 2 /l] <4.0 <4.0 corrosion Stability index corrosion + scale NOTE The water pressure should not exceed the maximum working pressure of 10 bar. Provide adequate safeguards in the water circuit to make sure that the water pressure will never exceed the maximum allowable working pressure. 3 Use Armaflex material with thickness of 9 mm. Protect the water piping against water freezing during winter period (e.g. by using a glycol solution). To assure proper operation of the unit, a minimum water volume is required in the system and the water flow through the evaporator must be within the operation range, specified in the table below. Minimum water flow Maximum water flow EUWA5 16 l/min 64 l/min EUWA8 23 l/min 92 l/min EUWA10 28 l/min 112 l/min The minimum water volume v [kg] in the system should moreover full fill the criteria below: v > (Q / 2) x t / ( x y) Q t y highest cooling capacity of the unit within the range of application (kw) antirecycling timer of unit (ARE)/2(s)=120 s specific heat capacity of the fluidum (kj/kg )=4.186 kj/kg for water steplength ( ) standard setting=3 (refer to the chapter Operating the unit for adjustments) EUWA5~10FBZW1 4

8 FIEL WIRING Parts table All field wiring and components must be installed by a licensed electrician and must comply with relevant European and national regulations. The field wiring must be carried out in accordance with the wiring diagram supplied with the unit and the instructions given below. L1,2,3...Live line N...Neutral F1,2,3U...Field fuses H1P...Indication lamp alarm H3P...Indication lamp operation compressor KP...Pumpcontactor PE...Main earth terminal S9S...Switch for remote start/stop or dual setpoint S10L...Flowswitch S11L...ontact that closes if the pump is working S12S...Main isolator switch Field wiring Power circuit and cable requirements 1 The electrical power supply to the unit should be arranged so that it can be switched on or off independently of the electrical supply to other items of the plant and equipment in general. Point for attention regarding quality of the public electric power supply This equipment complies with EN/IE (1) provided that the system impedance Z sys is less than or equal to Z max at the interface point between the user's supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected only to a supply with a system impedance Z sys less than or equal to Z max. Equipment complying with EN/IE (2) able for flow switch Be sure to interlock so that the compressor will not come into operation unless the water pump is operated. For this purpose 2 spare terminals are provided in the switch box (refer to the wiring diagram supplied with the unit). HOW TO ONTINUE Z max (Ω) EUWA EUWA EUWA After installation and connection of the packaged air-cooled water chiller, the unit should be checked and tested as described in "hecks before initial start-up" on page 8 in the chapter "Before operation". 2 A power circuit (see table below) must be provided for connection of the packaged air-cooled water chiller. This circuit must be protected with the required safety devices, i.e. a circuit breaker, a slow blow fuse on each phase and an earth leak detector. Recommended fuses are mentioned on the wiring diagram supplied with the unit. Phase and frequency Voltage EUWA5 3N~ 50 Hz 400 V EUWA8 3N~ 50 Hz 400 V EUWA10 3N~ 50 Hz 400 V NOTE Select the power cable in accordance with relevant local and national regulations. Switch off the main isolator switch before making any connections (switch off the circuit breaker and remove or switch off the fuses). onnection of the packaged air-cooled water chiller power supply 1 Using the appropriate cable, connect the power circuit to the (N), L1, L2 and L3 terminals of the unit as shown on the wiring diagram. 2 onnect the earth conductor (yellow/green) to the earthing terminal PE. (1) European/International Technical Standard setting the limits for voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with rated current 75 A. (2) European/International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and 75 A per phase. 5 EUWA5~10FBZW1

9 OPERATING THE UNIT INTROUTION This manual has been prepared to ensure adequate operation and maintenance of the unit. It will tell you how to use the unit properly and will provide help if problems occur. The unit is equipped with safety devices, but they will not necessarily prevent all problems caused by improper operation or inadequate maintenance. In case of persisting problems contact your local aikin dealer. Before starting up the unit for the first time, make sure that it has been properly installed. It is therefore necessary to carefully read the chapter "Installing the unit" on page 1 and the recommendations listed in "hecks before initial start-up" on page 8. ESRIPTION The EUWA packaged air-cooled water chillers are available in 3 standard sizes with nominal cooling capacities ranging from 11.2 to 22.6 kw. Each size is available in three phase 400 V+N 50 Hz. (See figure 4) 1 ompressor (M1) 2 ondenser coil 3 ondenser fan with motor (M11F) (only for EUWA5) 4 ondenser fan (only for EUWA8+10) 5 ondenser motor (M11F) (only for EUWA8+10) 6 High pressure gauge 7 Low pressure gauge 8 rier/filter 9 Thermostatic expansion valve 10 Evaporator 11 Water inlet connection 12 Water outlet connection 13 Switch box 14 Low-pressure switch (S4LP) 15 High-pressure switch (S1HP) 16 igital controller As the refrigerant circulates through the unit, changes in its state or condition occur. These changes are caused by the following main components: ompressor The compressor (M1) acts as a pump and circulates the refrigerant in the refrigeration circuit. It compresses the refrigerant vapour coming from the evaporator at the pressure at which it can easily be liquefied in the condenser. ondenser The function of the condenser is to change the state of the refrigerant from gaseous to liquid. The heat gained by the gas in the evaporator is discharged through the condenser to the ambient air, and the vapour condenses to liquid. One fan (EUWA5) or two fans (EUWA8+10) are used to accelerate this process. Filter The filter installed behind the condenser removes small particles from the refrigerant to prevent blockage of the expansion valve and tubes. Thermostatic expansion valve The liquid refrigerant coming from the condenser enters the evaporator via a thermostatic expansion valve. The valve maintains a constant degree of suction superheat at the evaporator outlet in order to ensure a maximum liquid refrigerant has turned into gas. Evaporator The main function of the evaporator is to take heat from the water that flows through it. This is done by turning the liquid refrigerant, coming from the condenser, into gaseous refrigerant. Water in/outlet connection The water inlet and outlet connections allow an easy connection of the packaged air-cooled water chiller to the water circuit of the air handling unit or industrial equipment. Function of the main components (See figure 5) 1 ompressor 2 ondenser 3 Evaporator 4 Expansion valve 5 Filter 6 Low pressure switch 7 High pressure switch 8 Water inlet temperature sensor 9 Water outlet temperature sensor 10 ondenser fan motor EUWA5~10FBZW1 6

10 Safety devices In its standard version, the unit is equipped with the following safety devices: Overcurrent relay (general safety device) The overcurrent relay (K4S) is located in the switch box of the unit and protects the compressor motor in case of overload, phase failure or too low tension. The relay is factory-set and may not be adjusted. When activated, it must be reset manually. High-pressure switch (general safety device) The high-pressure switch (S1HP) is installed on the discharge pipe of the unit and measures the condenser pressure (pressure at the outlet of the compressor). When the pressure is too high, the pressure switch is activated and the unit stops. The switch is factory-set and may not be adjusted. The switch resets automatically, but the controller needs to be reset manually. Low pressure switch (general safety device) The low-pressure switch (S4LP) is installed on the suction pipe of the unit and measures the suction pressure (pressure at the inlet of the compressor). When the pressure is too low, the pressure switch is activated and the unit stops. The switch is factory set and may not be adjusted. The switch resets automatically, but the controller needs to be reset manually. Reverse phase protector (general safety device) The reverse phase protector (R1P) is installed in the switch box of the unit. It prevents the compressor from running in the wrong direction. If the unit does not start, two phases of the power supply must be inverted. ischarge thermal protector (general safety device) The discharge thermal protector (Q*) is activated when the temperature of the refrigerant leaving the compressor becomes too high. When the temperature returns to normal, the protector resets automatically, but the controller needs to be reset manually. Fan motor thermal protector (part safety device) The fan motor is equipped with a thermal protector (Q11F). The protector is activated when the fan motor temperature becomes too high. When the temperature returns to normal, the protector resets automatically. Outlet water temperature sensor (general safety device) The outlet water temperature sensor (R4T) measures the temperature of the water at the water heat exchanger outlet. The protection device shuts down the circuit when the temperature of the chilled water becomes too low in order to prevent freezing of the water during operation. When the outlet water temperature returns to normal, the protector resets automatically, but the controller needs to be reset manually. Additional interlock contact (general safety device) To avoid that the unit could be started or run without water circulating through the evaporator, an interlock contact (S10L) of e.g. a flow switch must be switched in the start-up circuit of the unit. Measuring devices hecking the high and low pressure of the refrigerant circuit is necessary to ensure the proper operation of the unit and to guarantee that the rated output will be obtained. The unit has therefore been equipped with a high and low pressure gauge. Refer to the checklist in the chapter "Switching the unit on" on page 10. High pressure gauge The high pressure gauge indicates the discharge pressure (pressure at the outlet of the compressor). Low pressure gauge The low pressure gauge indicates the suction pressure (pressure at the inlet of the compressor). Internal wiring - Parts table Refer to the internal wiring diagram sticker on the unit. The abbreviations used are listed below: A1P... PB: Terminal unit A2P...**... PB: Adress card (for optional BMS) A3P... PB: Fanspeed controller (5 Hp only) A71P... PB: power supply card A72P... PB: remote user interface 1... apacitor for fanmotor E1H... rankcase heater F1,2,3U...#... Fuses F5...##.. Surge proof fuse F5B... Fuse for control circuit F7B... Fuse for fan circuit F9B... Fuse for secondary of TR1 F8U... Surge-proof fuse F9U...##.. Surge-proof fuse (for optional BMS) H1P...*... Indication lamp alarm H3P...*... Indication lamp operation compressor K1M... ompressor contactor K4S... Over current relay K1A... Auxiliary relay for high pressure K1F,K3F... ontactor for high speed selection of the fan motor (8+10 Hp only) K2F... ontactor for low speed selection of the fan motor (8+10 Hp only) KP...*... Pumpcontactor M11F... Fan motor M1... ompressor motor PE... Main earth terminal Q1... ischarge thermal protector Q11F... Fan thermal protector R1P... Reverse phase protector R3T... Inlet water temperature sensor R4T... Outlet water temperature sensor S1HP... High pressure switch S4LP... Low pressure switch S4P... Head pressure switch for fanspeed control (8+10 Hp only) S9S...*... Switch for remote start/stop or dual setpoint S10L...#... Flowswitch S11L...#... ontact that closes if the pump is working S12S...#... Main isolator switch TR1... Transfo 230 V 24 V (30 VA) for power supply of controllers X1... onnector in terminal unit for digital inputs, analog inputs, analog outputs and for power supply controller X2... onnector in terminal unit for digital outputs Not included with standard unit Not possible as option Possible as option Obligatory # ## Not obligatory * ** 7 EUWA5~10FBZW1

11 BEFORE OPERATION hecks before initial start-up Make sure that the circuit breaker on the power supply panel of the water chiller is switched off. After the installation of the water chiller, check the following before switching on the circuit breaker: 1 Field wiring Make sure that the field wiring between the local supply panel and the water chiller has been carried out according to the instructions described in the chapter Installing the unit, according to the wiring diagram and according to European and national regulations. 2 Additional interlock contact An additional interlock contact S11L should be provided (e.g. flow switch or contact of pump motor contactor). Make sure that it has been installed between the appropriate terminals (refer to the wiring diagram supplied with the unit). S11L should be a normal open contact. 3 Fuses or protection devices heck that the fuses or the locally installed protection devices are of the size and type specified in the chapter Installing the unit. Make sure that neither a fuse nor a protection device has been bypassed. 4 Earth wiring Make sure that the earth wires have been connected properly and that the earth terminals are tightened. 5 Internal wiring Visually check the switch box on loose connections or damaged electrical components. 6 Fixation heck that the unit is properly fixed, to avoid abnormal noises and vibrations when starting up the unit. 7 amaged equipment heck the inside of the unit on damaged components or squeezed pipes. 8 Refrigerant leak heck the inside of the unit on refrigerant leakage. If there is a refrigerant leak, call your local aikin dealer. 9 Oil leak heck the compressor on oil leakage. If there is an oil leak, call your local aikin dealer. 10 Air inlet/outlet heck that the air inlet and outlet of the unit is not obstructed by paper sheets, cardboard, or any other material. lean the inside of the ducts and make sure that the air ducts are properly installed. Water supply Fill the water piping, taking into account the minimum water volume required by the unit. Refer to the chapter Installing the unit. Make sure that the water is of the quality as mentioned in the chapter Installing the unit. Purge the air at the high points of the system and check the operation of the circulation pump and the flow switch. Power supply connection and crankcase heating To switch on the crankcase heater proceed as follows: 1 Switch on the circuit breaker on the local supply panel. Make sure that the unit is OFF. 2 The crankcase heater is switched on automatically. 3 heck the supply voltage on the supply terminals L1, L2, L3, (N) by means of a voltmeter. The voltage should correspond to the voltage indicated on the identification label of the unit. If the voltmeter reads values which are not within the ranges specified in the technical data, check the field wiring and replace the supply cables if necessary. 4 heck the LE on the reverse phase protector. If it lights up, the phase order is correct. If not, switch off the circuit breaker and call a licensed electrician to connect the wires of the power supply cable in the correct phase order. After six hours, the unit is ready for operation. General recommendations Before switching on the unit, read following recommendations: 1 When the complete installation and all necessary settings have been carried out, close all front panels of the unit. 2 The service panel of the switch box may only be opened by a licensed electrician for maintenance purposes. OPERATION In order to avoid compressor damage, it is necessary to switch on the crankcase heater for at least six hours before starting the compressor after a long period of standstill. The EUWA units are equipped with a digital controller offering a user-friendly way to set up, use and maintain the unit. This part of the manual has a task-oriented, modular structure. Apart from the first section, which gives a brief description of the controller itself, each section or subsection deals with a specific task you can perform with the unit. 11 Protective guard heck that the protective guard(s) is (are) properly installed in front of the air outlet(s). 12 rain disposal heck the proper operation of the drain. Pour some water into the drain pan and check whether the water evacuates freely through the drain. EUWA5~10FBZW1 8

12 igital controller User interface The digital controller consists of a numeric display, four labelled keys which you can press and LEs providing extra user information. Figure - igital controller Figure - Remote user interface (optional kit) Keys provided on the controller: The function carried out when the user presses one or a combination of these keys depends on the status of the controller and the unit at that specific moment. Keys digital controller A B A + B + Keys remote interface Main display Sensor readout menu Parameter selection menu Parameter setting menu T U S R Press once: Return Press for 5 seconds: To be able to access IRET parameters Press for 5 seconds: A + B OR Press once: S To be able to access USER parameters (after entering USER password) Press for 5 seconds: No effect on these units Press once: irect access to readout menu sensor (b01/b02/b03) Press for 5 seconds: Switch unit on/off in cooling mode Press once: irect access to readout menu sensor (b01/b02/b03) Press for 5 seconds: Manually alarm reset in the event of alarm Press once: Select previous sensor parameter Press once: Select next sensor parameter Press once: Return Press once: Select parameter group or parameter Press once: Select previous parameter group or parameter Press once: Select next parameter group or parameter Press once: ancel and return Press once: onfirm and return Press once: Increase value Press once: ecrease value 9 EUWA5~10FBZW1

13 LEs provided on the controller and remote interface: Function during main display (not inside menu) Leds digital controller Remote interface Main display P Led (green) Z Inlet water temperature. F Led (amber) F Not active. G Led (amber) G H Led (red) Y L Led (amber) L M Led (amber) M & Led (amber) & é Led (amber) é Not active. When selecting a parameter group or parameter, different LEs related to the parameter group or parameter are displayed. Example: The LEs F and G are displayed when accessing a parameter group or when accessing parameters directly. NOTE irect and user parameters The digital controller provides direct and user parameters. The direct parameters are important for the everyday usage of the unit, e.g. to adjust the temperature setpoint or to consult actual operational information. The user parameters on the contrary provide advanced features such as adjusting time delays. Each parameter is defined by a code and a value. For example: the parameter used to select local or remote on/off control has code h07 and value 1 or 0. For an overview of the parameters, refer to "Overview of the direct and user parameters" on page 13. Working with the units Indicates that cooling mode is active. Indicates that the alarm is active. Indicates the status of the pump LE, indicates that at least one compressor is active. LE is on, indicates that compressor 1 is active. LE is flashing, indicates compressor 1 startup request. Temperature readout tolerance: ±1. Legibility of the numeric display may decrease in direct sunlight. This chapter deals with the everyday usage of the units. Here, you will learn how to perform routine tasks, such as: "Switching the unit on" on page 10 and "Switching the unit off" on page 11, "Adjusting the cooling temperature setpoint" on page 11, "onsulting actual operational information" on page 11, "Resetting alarms" on page 11, "Resetting warnings" on page 12. Switching the unit on To switch the unit on in cooling mode, proceed as follows: 1 Press the key for approximately 5 seconds, the G LE will be displayed. Then an initialization cycle is started, the L LE, the M LE, the & LE will light up depending on the programmed thermostat function. In case the & LE is flashing, it indicates that there is a compressor 1 startup request. The compressor will start after the timer has reached zero. NOTE If remote on/off control is enabled, refer to "Selecting local or remote on/off control" on page When the unit is started up for the first time, or when the unit has been out of operation for a longer period, it is recommended to go through the following checklist. ondenser fan rotation This check applies to the EUWA8+10 units only. As soon as the compressor and the condenser fan have started, switch off the unit to stop them (refer to "Switching the unit off" on page 11). heck if the fans turn in the right direction while they are running out. The direction is indicated by an arrow on the fan housing. If they run in the wrong direction, call your local aikin dealer. Abnormal noise and vibrations Make sure the unit does not produce any abnormal noises or vibrations: check the fixations and piping. If the compressor makes any abnormal noises, this may also be caused by an overcharge of refrigerant. Working pressure It is important to check the high and low pressure of the refrigerant circuit to ensure the proper operation of the unit and to guarantee that the rated output will be obtained. For reference, the average saturated temperature of R407 in relation to the pressure readout can be found in "Annex I" on page 21. The pressures measured will vary between a maximum and minimum value, depending on the water and outdoor temperatures (at the moment of measurement). ooling mode Minimum Nominal Maximum ( 5 ) ( 35 ) ( 38 ) (LW 4 ) (LW 7 ) (LW 20 ) Low pressure 3 bar 4 bar 6.5 bar High pressure 7 bar 21 bar 24 bar LW NOTE outdoor temperature leaving water temperature Make sure that the lower service plate is in place when carrying out the pressure measurements. If not, the refrigerant will be cooled less in the condenser, which results in an increase of the low and high pressure. EUWA5~10FBZW1 10

14 Water leaks heck the evaporator and the external water circuit on water leaks. rain disposal Put the service covers in place so that the unit is completely closed, and start up the unit. After a few hours of operation, check if the condensing water is evacuated properly through the drain and that it does not flow over from the drain pan on the floor. It may happen that the drain pan outlet is obstructed or that the condenser fans create a vacuum so that the condensing water remains in the drain pan and flows over. In this case, the drain disposal should be lowered. The level difference of 75 mm indicated in the chapter Installing the unit is a minimum. 3 If the unit does not start after a few minutes, consult the actual operational information available in the list of direct parameters. Also refer to the chapter "Troubleshooting" on page 17. NOTE Switching the unit off To switch the unit off and cooling mode is active, proceed as follows: 1 Press the key for approximately 5 seconds, the G LE will be extinguished. NOTE In case of remote on/off control (h07=1), it is recommended to install an on/off switch near the unit in series with the remote switch. The unit can then be switched off from either place. If remote on/off control is enabled, refer to "Selecting local or remote on/off control" on page 14. How to consult and modify the direct parameters For an overview of the menu structure, refer to "Menu overview" on page Press B for 5 seconds in the main display. The -/- parameter group is displayed. 2 Press the or key to select the required parameter group. 3 Press the B key to enter the selected parameter group. 4 Press the or key to select the required parameter. 5 Press the B key to consult the selected parameter. 6 Press the or key to raise, respectively lower the setting of the selected parameter. (Only valid for read/write parameters.) 7 Press the B key to confirm the modified setting. OR Press the A key to cancel the modified setting. 8 Press the A key to return to the parameter group. 9 Press 2 times the A key to return to the main display. If during the procedure no buttons are pressed for 30 seconds, the displayed parameter code or value will start flashing. After another 30 seconds without pressing any buttons, the controller automatically returns to the main display without saving any modified parameter. How to consult the "sensor readout menu" parameters For an overview of the menu structure, refer to "Menu overview" on page 20. The b01/b02/b03 parameters are part of the "sensor readout menu". 1 Press the or key in the main display. The b01 parameter is displayed. In case no buttons are pressed, the value of the b01 sensor will be displayed until or is pressed again to select another parameter (b02 or b03). 2 Press the A key to return to the main display. If during the procedure no buttons are pressed for 30 seconds, the displayed parameter code or value will start flashing. After another 30 seconds without pressing any buttons, the controller automatically returns to the main display. Adjusting the cooling temperature setpoint 1 Modify the r1 cooling setpoint parameter. This is a direct parameter, refer to "How to consult and modify the direct parameters" on page 11. NOTE onsulting actual operational information The actual operational information that can be consulted in the list of direct parameters consists of: b01: Evaporator inlet water temperature, b02: Evaporator outlet water temperature, b03: Not used, c10: Total running hours of the compressor 1, c15: Total running hours of the pump. These are direct parameters, refer to "How to consult and modify the direct parameters" on page 11. Resetting alarms When dual setpoint is enabled (refer to "Selecting dual setpoint control" on page 14). NOTE The parameters b01, b02 and b03 can also be consulted by the "sensor readout menu". Refer to "How to consult the "sensor readout menu" parameters" on page 11. To reset the timers of parameters c10, c11 and c15 refer to "Resetting warnings" on page 12. When an alarm is detected, the following happens: the alarm relay is energized, the H LE is displayed the display starts flashing, alternately showing the alarm code and the inlet water temperature. The following alarm codes may appear on the screen: a1: indicates an anti-freeze alarm. e1: indicates that the NT probe used to measure the evaporator inlet water temperature is defective. e2: indicates that the NT probe used to measure the evaporator outlet water temperature is defective. e3: indicates that the fuse for the evaporator heatertape (F4) is blown or that there is a reverse phase error or that there is a problem with the I/O PB (A2P). 11 EUWA5~10FBZW1