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Instructions: 
Referring to the specify

Read and understand all 
the present Manual before 
any intervention.

PRESER

VE 

THE PRESENT

 FOR FUTURE

The instructions unit manuali s composed by the following:
• Conformity declaration
• Technical Manual

USE AND MAINTENANCE TECHNICAL MANUAL

Original Instruction

DXi.H

WITH INVERTER COMPRESSORS

DXi.HF

WITH INVERTER COMPRESSORS

AND ADDITIONAL FREE-COOLING COIL

'XDOÁXLGLQGLUHFWIUHHFRROLQJ

DIRECT EXPANSION WATER CONDENSED CLOSE CONTROL UNITS

MTEC.DXi.H/DXi.HF.GB-3 Use and Maintenance technical manual DXi.H/DXi.HF series English Rev. 3 02-2021

Содержание EMIBYTE DXi.H

Страница 1: ...lowing Conformity declaration Technical Manual USE AND MAINTENANCE TECHNICAL MANUAL Original Instruction DXi H WITH INVERTER COMPRESSORS DXi HF WITH INVERTER COMPRESSORS AND ADDITIONAL FREE COOLING CO...

Страница 2: ...ive any information about his products 7KH 0DQXIDFWXUHU ZRUNV LQ D FRQVWDQW SROLF RI SURGXFWV GHYHORSPHQW DQG UHVHUYHV WKH ULJKW WR PRGLI KLV SURGXFWV WKH VSHFL FV DQG WKH instructions about use and m...

Страница 3: ...QV 3 3 Accessories description 3 4 DXi H series technical data 3 5 DXi HF series technical data 3 6 Refrigerant charge 3 7 Operation limits 3 8 DXi H Sound data 3 9 DXi HF Sound data 4 INSTALLATION 4...

Страница 4: ...mote control description 6 3 Keys function 6 4 User interface 6 5 Password settings 6 6 Quick access Menu 6 7 Main Menu 7 UNIT MAINTENANCE 7 1 General advices 7 2 Unit access 7 3 Scheduled maintenance...

Страница 5: ...t without any prior notice The present instructions porpose to give all information concerning the selection installation use and maintenance of the units The instructions are written in conformity wi...

Страница 6: ...it s electrical panel Section of the cables and protection system of the po wer supply line complying with the standard in force High pressure safety valve if present Intoxications several burns heari...

Страница 7: ...icates a forbidden action ADVISE A black graphic symbol inside a yellow triangle with black edges indicates a danger MANDATORY ACTION A white symbol inside ina blue circle indicates a mandatory action...

Страница 8: ...ould be very hot and that could cause several burns SHARP SURFACES The symbol indicates unit components could cause cutting wounds by contact GROUND CONNECTION The symbol indicates the unit s ground c...

Страница 9: ...orurati ad effetto serra disciplinati dal protocollo di Kyoto equipment that contains fluorinated greenhouse gases covered by the Kyoto protocol quipement qui contient des gaz fluor s effet de serre c...

Страница 10: ...W WKH LQIHULRU DWPRVSKHUH WURSRVSKHUH UHODWLYHO TXLFNO GHFRPSRVHG WKH DUH KLJKO GLVSHUVLEOH VR WKH FRQFHQWUDWLRQ ZLOO EH UHDOO ORZ 7KH GRQ W LQ XHQFH WKH SKRWRFKHPLFDO VPRJ DQG DUH QRW LQFOXGHG LQ YRO...

Страница 11: ...te safety protection using respiratory breatheways protections I WKH FRQGLWLRQV DUH VXI FLHQWO VDIH LVRODWH WKH OHDN VRXUFH LI WKH OHDN LV OLPLWHG OHDYH WKH HYDSRUDWLRQ UHIULJHUDQW IUHH HQVXULQJ D JRR...

Страница 12: ...with a RAL 9004 epoxy powder cycle The elements are assembled together to make up a sturdy frame capable of supporting units parts and to sustain strain which may derive from unit handling and operat...

Страница 13: ...ulation resistance and wihtstanding test The unit control is managed by controller program installed on the Microprocessor onboard 3 1 7 3ODWH HDW FKDQJHU The plate heat exchangers are brazed plate ty...

Страница 14: ...Use and Maintenance technical manual DXi H DXi HF English Emibyte DXi H DXi HFDirect expansion close control RQ JXUDWLRQV Front suction Up discharge Down suction Up discharge Up suction Down discharge...

Страница 15: ...modulating production of steam it is made of a steam cylinder a steam distributor water inlet and outlet valves and a maximum water level probe The onboard microprocessor indicates when the steam cyli...

Страница 16: ...of aluminium and installed after the cooling coil suitable for re heating and or heating of the treated DLU LQ RUGHU WR FRPSHQVDWH IRU WKH VHQVLWLYH FRROLQJ RI WKH V VWHP GXULQJ WKH GHKXPLGL FDWLRQ F...

Страница 17: ...750 980 980 1160 1160 mm 550 550 550 550 750 750 850 850 mm 1980 1980 1980 1980 1980 1980 1980 1980 Kg 201 209 212 223 289 297 339 372 Kg 204 212 215 226 293 301 343 376 Kg 205 213 217 228 295 303 345...

Страница 18: ...6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 n 4 5 4 5 4 5 4 5 5 5 6 6 mm 1505 1505 1505 1505 1860 1860 2210 2210 mm 850 850 850 850 850 850 850 850 mm 1980 1980 1980 1980 1980 1980 1980 1980 Kg 428 456 458 435 52...

Страница 19: ...0 900 900 900 900 m 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 n 6 7 7 7 8 8 8 8 mm 2210 2565 2565 2565 3100 3100 3100 3100 mm 850 850 850 850 850 850 850 850 mm 1980 1980 1980 1980 1980 1980 1980 1980 Kg 627 74...

Страница 20: ...400 100 400 100 400 n 2 3 3 3 3 3 kW 6 0 9 0 9 0 9 0 15 0 15 0 A 8 7 13 0 13 0 13 0 21 7 21 7 n 3 3 3 3 3 3 kW 9 0 12 0 12 0 12 0 18 0 18 0 A 13 0 17 3 17 3 17 3 26 0 26 0 MTEC DXi H DXi HF GB 3 Use a...

Страница 21: ...l DXi H DXi HF English Emibyte DXi H DXi HFDirect expansion close control RW ZDWHU FRLO Heating capacity 4 DWHU RZ Pressure drop coil 3 way valve Coil internal volume RQGHQVLQJ ZDWHU SXPS 1RPLQDO RZ 0...

Страница 22: ...aCO3 100 400 100 400 100 400 100 400 100 400 100 400 n 3 3 3 3 3 3 kW 18 0 18 0 24 0 24 0 27 0 27 0 A 26 0 26 0 34 6 34 6 39 0 39 0 n 3 3 3 3 3 3 kW 24 0 24 0 27 0 27 0 36 0 36 0 A 34 6 34 6 39 0 39 0...

Страница 23: ...ical manual DXi H DXi HF English Emibyte DXi H DXi HFDirect expansion close control RW ZDWHU FRLO Heating capacity 4 DWHU RZ Pressure drop coil 3 way valve Coil internal volume RQGHQVLQJ ZDWHU SXPS 1R...

Страница 24: ...9 6 8 6 10 4 t 9 2 15 2 16 7 20 0 18 0 21 7 DXi H 691 742 761 861 931 952 1021 1142 6 7 7 7 8 8 8 8 n 1 2 1 1 1 2 1 2 Kg 15 9 21 8 21 2 21 5 32 1 33 5 32 6 33 7 t 33 2 45 5 44 3 44 9 67 0 69 9 68 1 7...

Страница 25: ...ture of the ambient to be cooled has to be of 18 C The maximum temperature of the ambient to be cooled has to be of 35 C 7KH XQLWV LQ VWDQGDUG FRQ JXUDWLRQ DUH QRW VXLWDEOH IRU PDULQH LQVWDOODWLRQV Lo...

Страница 26: ...64 54 691 66 72 75 79 80 80 76 68 85 64 54 742 57 70 72 79 79 80 77 68 85 64 54 761 57 70 72 79 79 80 77 68 85 64 54 861 56 69 71 78 78 79 76 67 84 63 53 931 57 70 73 79 78 78 77 66 84 63 53 952 57 70...

Страница 27: ...71 63 79 59 48 121 45 57 65 69 74 75 71 63 79 59 48 151 45 57 65 69 74 75 71 63 79 59 48 181 47 64 67 72 75 75 73 64 80 60 49 201 48 64 68 73 76 76 74 65 81 61 50 251 48 65 68 74 76 75 72 64 81 61 50...

Страница 28: ...8 69 86 65 55 931 58 71 73 79 79 79 78 67 85 64 54 952 58 71 73 79 79 79 78 67 85 64 54 181 47 64 67 72 75 75 73 64 80 60 49 251 48 65 68 74 76 75 72 64 81 61 50 381 43 64 68 76 78 77 74 65 83 63 52 3...

Страница 29: ...orms in force Do not approach or insert any object into moving parts 4 2 RUNHUV KHDOWK DQG VDIHW The operator s workplace must be kept clean tidy and free of objects that mas restrict free movement th...

Страница 30: ...UDJH DQG WUDQVSRUW If it was necessary to storage the unit ensure to leave it in a closed and dry place if the unit is already unpacked please follow the hereafter indications to avold a possible corr...

Страница 31: ...to be in compliance with laws and local norms IS forbidden to put one unit over other also if are packed If the unit is stored after receipt must be away from the elemets even if packed Pay attention...

Страница 32: ...team SURRI DQG GLDPHWHUV WWLQJ ZLWK WKH ZRUVW IRUHVHHDEOH FRQGLWLRQV ERWK LQ RSHUDWLRQ DQG LQ VWRS The system must be protected with a safety valve of adequate size and with maximum pressure lower tha...

Страница 33: ...sure 4 9 4 LOOLQJ LQ WKH K GUDXOLF FLUFXLW Per la connessione dell unit al circuito idraulico utilizzare le zone predisposte i diametri delle connessioni idrauliche delle varie unit sono elencate nell...

Страница 34: ...GAS F 1 1 4 GAS F 3 4 22 22 12 10 761 2x 2 GAS M 2x 2 GAS M 1 1 4 GAS F 1 1 4 GAS F 3 4 22 22 12 10 861 2x 2 GAS M 2x 2 GAS M 1 1 4 GAS F 1 1 4 GAS F 3 4 22 22 12 10 931 2x 2 GAS M 2x 2 GAS M 1 1 2 GA...

Страница 35: ...o use water from water city systems adequately treated In these cases the water condenser is equipped with a pressostatic valve as optional VP or VCP accessories when calculating the circu lation pump...

Страница 36: ...ot water coil High pressure switch Hot gas coil Low pressure switch Low temp Operation up to 40 c Pressure transducer Compressor Electric heaters HKXPLGL HU Modulating valve Fan Oversized electric hea...

Страница 37: ...44 44 44 HM NTS 476 7 963 NTS HM 96 2 476 26 04 04 A A M M TS TS HM NTS OS 60 OS 60 OS 60 MTEC DXi H DXi HF GB 3 Use and Maintenance technical manual DXi H DXi HF English Emibyte DXi H DXi HFDirect ex...

Страница 38: ...24 2 02 33 2 3 2 02 33 2 3 44 P HK P R 44 26 OS 60 HM M TS 6 0 NTS 2 476 04 26 HM NTS M TS 8H OS 60 MTEC DXi H DXi HF GB 3 Use and Maintenance technical manual DXi H DXi HF English Emibyte DXi H DXi...

Страница 39: ...0 OS 60 OS 60 026 03 04 03 03 63 6 24 2 02 33 2 3 2 02 33 2 3 44 P HK P R 026 03 04 03 03 63 6 24 2 02 33 2 3 2 02 33 2 3 44 P HK P R MTEC DXi H DXi HF GB 3 Use and Maintenance technical manual DXi H...

Страница 40: ...afety valve Hot water coil High pressure switch Hot gas coil Low pressure switch Low temp Operation up to 40 c Pressure transducer Compressor Electric heaters HKXPLGL HU Modulating valve Fan Oversized...

Страница 41: ...4 44 963 NTS HM 96 2 476 26 04 04 A A M M TS TS NTS OS 60 OS 60 OS 60 7 476 HM 44 4 44 MTEC DXi H DXi HF GB 3 Use and Maintenance technical manual DXi H DXi HF English Emibyte DXi H DXi HFDirect expan...

Страница 42: ...3 2 02 33 2 3 44 P HK P R 44 26 OS 60 M TS 6 0 NTS 2 476 04 26 NTS M TS 8H OS 60 4 44 7 476 HM 44 MTEC DXi H DXi HF GB 3 Use and Maintenance technical manual DXi H DXi HF English Emibyte DXi H DXi HFD...

Страница 43: ...026 03 04 03 03 63 6 24 2 02 33 2 3 2 02 33 2 3 44 P HK P R 026 03 04 03 03 63 6 24 2 02 33 2 3 2 02 33 2 3 44 P HK P R 7 476 HM 44 4 44 MTEC DXi H DXi HF GB 3 Use and Maintenance technical manual DXi...

Страница 44: ...DW OWHU HDVLO UHPRYDEOH IRU KLV FOHDQLQJ RU UHSODFHPHQW PRYLQJ WKH VSHFLDO FDWFK H1 20 mm H2 3 PP 3 Internal unit pressure difference considered in mm of water column 10 Pa 1 mm of water column 4 14...

Страница 45: ...HQGHG WR DGG D PHFKDQLFDO OWHU DQG D VKXW RII YDOYH WR KROG EDFN VROLG LPSXULWLHV 7KH H KDXVW SLSH KDV WR EH IUHH ZLWKRXW EDFNSUHVVXUH DQG SURYLGHG ZLWK D VLSKRQ LPPHGLDWHO XQGHU KXPLGL HU connection...

Страница 46: ...LGHUDWLRQ DOO WKH IDFWRUV FDQ LQ XHQFH LW WHPSHUDWXUH LVRODWLRQ W SH OHQJKW HWF The electrical power supply has to respect the mentioned limits otherwise the warranty will be immediately decay Make al...

Страница 47: ...0 V Hz 24 1 50 V Hz 400 3 50 mm2 16 16 25 25 25 35 mm2 16 16 25 25 25 35 MTEC DXi H DXi HF GB 3 Use and Maintenance technical manual DXi H DXi HF English Emibyte DXi H DXi HFDirect expansion close con...

Страница 48: ...W EH HG WR WKH FRUUHVSRQGLQJ WHUPLQDO RU EDU LGHQWL HG ZLWK 3 A user terminal board is available with free contacts designed for Generica alarm mode Unit remote ON OFF Inside of the electrical board a...

Страница 49: ...wer than conductivity of phase conductor and there is not a simmetric ground conductor inside the wire 6XSSO FDEOH FRQQHFWLRQ 56 6HULDO LQWHUIDFH Supervision system connection MODBUS RS485 only suprev...

Страница 50: ...the unit ground connection Check the refrigerant leaks eventually using an apposite device Check the oil leaks near the compressors or along the cooling circuit Check the pressure of the cooling circ...

Страница 51: ...heater to heat the oil in the compressors Check the fans and compressors rotation if the power supply is of three phases if the rotation is wrong will be necessary to invert two of three phases on the...

Страница 52: ...EH GDQ gerous for person or thing directly invested The valve opening is accompanied by a noise whose intensity could cause damages also permanent to the people immediately near the unit The tubes mus...

Страница 53: ...ages the card manages the different devices which are installed in the unit following the operation variables values In this way the card cans realizes the following main functions Unit ON OFF from th...

Страница 54: ...close control OHFWULFDO FRQQHFWLRQ Connect the phone wire is coming from the card to the back terminal suitable connector For the control panel electrical connection refer to the wiring diagram provi...

Страница 55: ...and actual discharge fan speed 4 Unit mode Stand by Only fan active no cooling required Off by alarm Unit OFF for serious alarm Off by BMS Unit OFF from supervision control Off by sched Off by sched O...

Страница 56: ...withi and keys is possible to switch through them Every mask is characte rized by a 4 digit code to the top right of the screen and it is composed as 1 digit Main Menu code 2 digit Secondary Menu cod...

Страница 57: ...rcomp 2 On On 0s Min On 0s Compressor safety timing circ 2 inverter Info EEV 1 Z005 0 0stp STATUS Set 0 0o c Suction SH 0 0o c Thermostatic valve condition circ 1 Info EEV 1 Z006 Suct P 0 0bar Suct T...

Страница 58: ...ed 70 0 Powerout 4 0W Drivetemp 40 0 C Provides information on operating fans Possibility to choose which ones to activate from the E028 mask UnitConf Z101 Returntemperature U01 Value 24 2 C Offset 0...

Страница 59: ...H LQSXW WRJHWKHU ZLWK WKH RRG DODUP Info IO Z213 Waterfloodingswitch ID06 Value NotActive Logic NC HWvalve Opened Dislpay Flood alarm condition from digital input It can be enabled by the Ga09 mask In...

Страница 60: ...y the conditions of the hot valve Info IO Z410 Freecooling Y03 Value 0 0 Type 0 10V Display analogical freecooling output Workinghours Z500 Inv comp circ 1 Hours 0h Nextthresh 30000h Resethours NO Dev...

Страница 61: ...emere NH WR FRQ UP Can be displayed some set point masks move through the masks using and keys SCHEDULER ST00 SETPOINTACTIVE Supply 20 0 C Returm 23 0 C Humidif 30 0 Dehumidif 70 0 Diff press 300 0Pa...

Страница 62: ...Alarm logs I Other settings Date Time Language Network Pwd Change Inizialization L Logout MTEC DXi H DXi HF GB 3 Use and Maintenance technical manual DXi H DXi HF English Emibyte DXi H DXi HFDirect ex...

Страница 63: ...HF GB 3 Use and Maintenance technical manual DXi H DXi HF English Emibyte DXi H DXi HFDirect expansion close control 0HQX 9HQWLODWLRQ To enter in fans menu use than using and s keys is possible to sel...

Страница 64: ...DQG WKH GHKXPLGL FDWLRQ PRGH Supplyfan E002 Limitspeed Minspeed 20 0 Timestartup 60s Timeshutdown 30s During the switch ON and OFF the fans are maintened to a constant speed for a settable time in thi...

Страница 65: ...urce Humidification Dehumidification Heating REHEAT INTEGR Allows some functions enable Using the user password allows the visualization of those enabled Unitconf funct Ga08 Externalsetpoint Compensat...

Страница 66: ...e type on the main mask Unitconfig Ga25 Serialprobe Enableserialprobe forreturnair temp andhumidity 7HPSHUDWXUH VHULDO SUREH FRQ JXUDWLRQ Unitconfig Ga28 Floatingvalve runningtime 180s Floating valve...

Страница 67: ...ion Gb24 Humidification Kp 6 0 Ti 80s OORZV WR GLVSOD VHW WKH SDUDPHWHUV IRU KXPLGL HU IXQFWLRQ UHJXODWLRQ Unitregulation Gb32 Rehatingheaters Rehating 2STEPS Setpointoffset 5 0 C Currentset Return St...

Страница 68: ...fan Delaytime 10s Main fans thermal alarm delay displaying settings Unitregulation Gb50 Numberalarm hour LP 3 HP OverloadComp 1 High or low pressure alarm delay number per hour displaying settings Uni...

Страница 69: ...s 300Pa Economy type set point scheduler setting SCHEDULER IA05 PRE COMFSETPOINT Supply 20 0 C Return 23 0 C Humidif 30 0 Dehumidif 70 0 Diff press 300Pa Pre comfort type set point scheduler setting S...

Страница 70: ...h Emibyte DXi H DXi HFDirect expansion close control DQJXDJH 1HWZRUN Press key to select language desired and then press WR FRQ UP Are available the following languages Italian English German Spanish...

Страница 71: ...o the situations described It is advisable to have a unit booklet with a purpose to sign any intervention performed helping the troubleshooting The maintenance operations must be performed in accordan...

Страница 72: ...in accordance with the regulations in force 1RLVH DQG YLEUDWLRQ FKHFN It is necessary to verify at least monthly the unit sound emissions and that the piping is not subject to abnormal vibrations can...

Страница 73: ...pera WLRQ LQ RUGHU WR DOORZ WR WKH GULHU OWHU WR H WUDFW FRPH KXPLGLW IURP WKH UHIULJHUDQW The refrigerant overheating is the difference between suction temperature measured using the thermometer and...

Страница 74: ...ck X Unit visual inspection X Unit noise and vibration check X Safety devices and interblocks operation check X Unit performances check X Unit devices electrical absorptio check fans etc X Unit power...

Страница 75: ...d inverter and that are regu ODUO HG WR WKH WHUPLQDOV X 6WUDRUGLQDU PDLQWHQDQFH 7KH XQLW V UHSDLUV PXVW EH SHUIRUPHG E D TXDOL HG SHUVRQQHO LQIRUPHG DERXW WKH V VWHP DQG HTXLSSHG ZLWK LQGLYLGXDO SURWH...

Страница 76: ...ention requires a shut off valve or interception valve must be removed is suggest to replace the seals with new ones During the welding and brazing operations all the heat sensitive devices must be re...

Страница 77: ...able causes and the possible solutions Before any intervention if an alarm occurs verify that The operating conditions are the same of excepted compatibles with the unit s operation limits OO WKH HOHF...

Страница 78: ...l system calibration F 7KH DLU RZ LV LQVXI FLHQW Refer to point 6 d The compressor doesn t work Refer to point 10 H 7KH FRPSUHVVRU FDSDFLW LV LQVXI FLHQW Refer to point 13 Refer to point 14 Refer to p...

Страница 79: ...anically Try to unlock manually the valve or replace it 8 High pressure switch is enabled a The system of condensation pressure control is doesn t work properly if present Check the condensing control...

Страница 80: ...properly if present Check the setting and functioninf of the condensation control system b Suction pressure too high Refer to point 12 c Non condensable air or gas in the circuit 7KH RZ VLJKW JODVV S...

Страница 81: ...the power cable b Protection switch open Reset the protection switch ad check the motor current and absorption c Transformer protection activated Check for any auxiliary short circuit d Contactor defe...

Страница 82: ...ta shown on this booklet are not binding 7KH RPSDQ VKDOO KDYH WKH ULJKW WR LQWURGXFH DW DQ WLPH ZKDWHYHU PRGL FDWLRQV QHFHVVDU WR WKH LPSURYHPHQW RI WKH SURGXFW The reference languages for the whole d...

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