Emicon RAH MC HT Ka Reference manual

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RETAIN FOR FUTURE REFERENCE
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RAH MC HT Ka
AIR COOLED CHILLERS EQUIPPED WITH SCREW COMPRESSORS, AXIAL FANS
AND MICROCHANNEL CONDENSING COILS
HIGH AMBIENT TEMPERATURE OPERATION
TECHNICAL MANUAL FOR INSTALLATION
USE AND MAINTENANCE

Rev. A 12-2018
2
MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
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Declaration of conformity
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MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
INDEX
1. INTRODUCTION.....................................................................................................................................................................................
 3UHOLPLQDU\LQIRUPDWLRQ......................................................................................................................................................
 $LPDQGFRQWHQWRIWKHPDQXDO .........................................................................................................................................
 +RZWRVWRUHWKLVPDQXDO ...................................................................................................................................................
 0DQXDOXSGDWHV .................................................................................................................................................................
 +RZWRXVHWKLVPDQXDO .....................................................................................................................................................
 3RWHQWLDOULVNV ....................................................................................................................................................................
 *HQHUDOGHVFULSWLRQRIV\PEROVXVHG.................................................................................................................................
 6DIHW\V\PEROVXVHG..........................................................................................................................................................
 /LPLWDWLRQVDQGSURKLELWHGXVH...........................................................................................................................................
 8QLWLGHQWL¿FDWLRQ ............................................................................................................................................................
2. SAFETY .................................................................................................................................................................................................
 :DUQLQJUHSRWHQWLDOO\KD]DUGRXVWR[LFVXEVWDQFHV..........................................................................................................
 5HIULJHUDQWKDQGOLQJ .........................................................................................................................................................
 3UHYHQWLRQRILQKDODWLRQRIKLJKYDSRUFRQFHQWUDWLRQV .......................................................................................................
 3URFHGXUHVLQWKHHYHQWRIDFFLGHQWDOUHOHDVHRIUHIULJHUDQW .............................................................................................
 0DLQ7R[LFRORJLFDOLQIRUPDWLRQRQWKHW\SHRIUHIULJHUDQWXVHG..........................................................................................
 )LUVWDLGPHDVXUHV .............................................................................................................................................................
3. TECHNICAL CHARACTERISTICS .........................................................................................................................................................
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3.2 Other versions ...................................................................................................................................................................
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 7HFKQLFDOGDWD....................................................................................................................................................................
 2SHUDWLRQOLPLWV..................................................................................................................................................................
 'RPHVWLFKRWZDWHUSURGXFWLRQ .........................................................................................................................................
3.7 CRUUHFWLRQWDEOHV................................................................................................................................................................
 6RXQGGDWD ........................................................................................................................................................................
4. INSTALLATION .......................................................................................................................................................................................
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 :RUNHUV¶KHDOWKDQGVDIHW\ ...............................................................................................................................................
 3HUVRQDOSURWHFWLYHHTXLSPHQW .........................................................................................................................................
4.4 Inspection ..........................................................................................................................................................................
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 /RFDWLRQDQGPLQLPXPWHFKQLFDOFOHDUDQFHV .....................................................................................................................
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 (OHFWULFGDWD.....................................................................................................................................................................
5. UNIT START UP......................................................................................................................................................................................
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6. USE .........................................................................................................................................................................................................
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6.2 Stop ...................................................................................................................................................................................
 +RZWRFKDQJHWKHVHWSRLQWV ............................................................................................................................................
 352%(6NH\ .....................................................................................................................................................................

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MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
6.5 ALARM NH\........................................................................................................................................................................
6.6 CIRC NH\ ...........................................................................................................................................................................
6.7 SERVICE NH\ ....................................................................................................................................................................
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7. UNIT MAINTENANCE .............................................................................................................................................................................
 *HQHUDOZDUQLQJV...............................................................................................................................................................
7.2 Access to the unit...............................................................................................................................................................
 5RXWLQHPDLQWHQDQFH.........................................................................................................................................................
 3HULRGLFDOFKHFNV...............................................................................................................................................................
 5HIULJHUDQWFLUFXLWUHSDLU ....................................................................................................................................................
8. DECOMMISSIONING.............................................................................................................................................................................
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 'LVSRVDOUHFRYHU\DQGUHF\FOLQJ ......................................................................................................................................
 5$((GLUHFWLYHRQO\IRU(&FRXQWULHV..............................................................................................................................
9. ',$*126,67528%/(6+227,1* ...................................................................................................................................................
 )DXOW¿QGLQJ ......................................................................................................................................................................
10. DIMENSIONAL DRAWINGS ................................................................................................................................................................

Rev. A 12-2018
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MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
1. INTRODUCTION
1.1 Preliminary information
1.2 Aim and content of the manual
1.3 How to store this manual
1.4 Manual Update
1.5 How to use this manual
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Rev. A 12-2018
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MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
1.6 Potential Risks
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MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
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MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
GENERAL RISK
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MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
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MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
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11
MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
2.3 Prevent inhalation of high vapor concentration
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2.6 First Aid Measures
2.6.1 Inhalation
2.6.2 Contact with skin
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2.6.3 Contact with eyes
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2.6.4 Ingestion
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2.6.5 Further medical treatment
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Rev. A 12-2018
12
MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
3. TECHNICAL CHARACTERISTICS
3.1 Unit description
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3.1.1 Structure
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3.1.2 Compressors
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3.1.3 Evaporator
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3.1.4 Economizer
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3.1.5 Coils
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3.1.6 Fans
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Rev. A 12-2018
13
MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
3.1.7 Refrigerant circuit
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3.1.8 Electrical cabinet
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3.1.9 Microprocessor
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ZDWHUWHPSHUDWXUHDVZHOODVFRQWURORIZRUNLQJSDUDPHWHUVDQGHTXDOL]DWLRQRIFRPSUHVVRUVZRUNLQJKRXUVIDLOXUHVDXWRGHWHFWLRQV\-
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QLFDWLRQSURWRFROVPDQDJHPHQWFRPSOHWHZLWKFRPSUHVVRUVKRXUFRXQWHU

Rev. A 12-2018
14
MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
3.2 Other versions
3.2.1 Standard version
$LUFRROHGFKLOOHUVZLWKVHPLKHUPHWLFVFUHZFRPSUHVVRUVZRUNLQJRQLQGHSHQGHQWFLUFXLWVXVHUVLGHVKHOOWXEHHYDSRUDWRUDQGFRQGHQ-
VLQJFRLOVWRWDOO\PDGHRIDOXPLQLXPZLWKPLFURFKDQQHOWHFKQRORJ\GHVLJQHGWRRSHUDWHWLOO&H[WHUQDODLUWHPSHUDWXUH
3.2.2 Version with partial heat recovery (RP)
(DFKPRGHORIWKHVHULHVRQGHPDQGLVDYDLODEOHZLWKFRQGHQVDWLRQKHDWSDUWLDOUHFRYHU\YHUVLRQ2SWLRQ53
QWKLVFRQ¿JXUDWLRQHDFKFRROLQJFLUFXLWLVHTXLSSHGZLWKDUHIULJHUDQWZDWHUH[FKDQJHURQJDVGLVFKDUJHVLGH7KLVH[FKDQJHULQVWDOOHGLQ
VHULHVDQGXSVWUHDPRIWKHDLUFRQGHQVHULVGHVLJQHGWRUHFRYHUDERXWRIWKHFRQGHQVLQJKHDWWRSURGXFHKRWZDUPVDQLWDU\ZDWHU
3.3 Accessories description
A Amperometer: (OHFWULFDOGHYLFHWRPHDVXUHWKHHOHFWULFDOFXUUHQWDEVRUEHGE\WKHXQLW
AE Electrical power supply different than standard:3OHDVHFRQWDFWRXUVDOHVGHSDUWPHQW
BT Operation in cooling mode down to -10°C (by modulating voltage control):(OHFWURQLFGHYLFHIRUWKHFRQWLQXRXVPRGXODWLQJ
YROWDJHFRQWURORIWKHFRQGHQVLQJSUHVVXUHWKURXJKWKHYDULDWLRQRIWKHIDQURWDWLRQVSHHGDOORZLQJWKHXQLWRSHUDWLRQGRZQWR
&DPELHQWWHPSHUDWXUH$OWHUQDWLYHWR(&
CS Compressors inrush counter:(OHFWURPHFKDQLFDO GHYLFHSRVLWLRQHGLQVLGHWKHHOHFWULFDOERDUGUHFRUGLQJWKHWRWDOLQUXVK
VWDUWVRIFRPSUHVVRUV
DS Star/Delta:(OHFWULFGHYLFHRIFORVHWUDQVLWLRQW\SHWRUHGXFHLQUXVKFXUUHQWFRPSOHWHZLWKVKRUWFLUFXLWVDIHW\E\PHFKDQLFDO
LQWHUORFN
EC Axial fans with electronic commutated motor:ZLWKH[WHUQDOURWRUGLUHFWO\FRXSOHGWRDWKUHHSKDVHHOHFWURQLFDOO\FRPPXWDWHG
PRWRU(&WKH\KDYHWKHSRVVLELOLW\RIDFRQWLQXRXVUHJXODWLRQRIWKHVSHHGE\PHDQVRID9VLJQDOFRPSOHWHO\PDQDJHG
E\WKHPLFURSURFHVVRU$OXPLQXPEODGHVZLWKZLQJVSUR¿OHDUHVXLWDEO\GHVLJQHGWRDYRLGDQ\WXUEXOHQFHLQWKHDLUGHWDFKPHQW
]RQHJUDQWLQJLQWKLVZD\WKHPD[HI¿FLHQF\ZLWKWKHPLQLPXPQRLVHOHYHO7KHIDQLVHTXLSSHGZLWKJDOYDQL]HGVWHHOSURWHFWLRQ
JULG SDLQWHGDIWHUWKHFRQVWUXFWLRQ7KDQNVWRDPRUHDFFXUDWHDGMXVWPHQWRIDLUÀRZWKH\DOORZRSHUDWLRQRIWKH XQLWZLWK
H[WHUQDOWHPSHUDWXUHGRZQWR&$OWHUQDWLYHWR%7
ECP Anticorrosive electro coating protection of condensing coils: 7UHDWPHQW RI WKH FRLOV FRPSRVHG E\ HOHFWUR GHSRVLWLRQ
SURFHVVRIHSR[\SDLQWSDUWLFOHIRUPLQJDQXQLIRUPDQGFRQWLQXRXV¿OPRYHUWKHZKROHVXUIDFHRIH[FKDQJHUFUHDWLQJDÀH[LEOH
DQGVPRRWKFRDWLQJWKDWLVSDUWLFXODUO\UHVLVWDQWWRFRUURVLYHDJHQWV7KLVW\SHRIWUHDWPHQWLVLQGLFDWHGLQFDVHRILQVWDOODWLRQ
LQKLJKFRQWDPLQDQWVFRQFHQWUDWLRQLQGXVWULDOHQYLURQPHQWV!SSPKLJKDWPRVSKHULFSROOXWLRQXUEDQDUHDV!XJPñ
RUQHDUFRVWDODUHDV
FL 6DIHW\ÁRZVZLWFKZDWHUÁRZ0HFKDQLFDOÀRZVZLWFKRQWKHZDWHUVLGHPDGHRIDSDGGOHGHYLFHWKDWLIZDWHUÀRZWRWKH
HYDSRUDWRULVEHORZWKHPLQLPXPÀRZUDWHDOORZHGDFWLYDWHVDQDODUPDQGVZLWFKHVRIIWKHFRPSUHVVRUV0DQXDOUHVHWRQWKH
UHJXODWRU
GP Condensing coil protection grid:0HWDOJULGWRSURWHFWDJDLQVWDFFLGHQWDOLPSDFWV$OWHUQDWLYHWR*3
GP1 Anti-intrusion grid:0HWDOSURWHFWLRQJULGWRSURWHFWFRPSUHVVRUVDQGH[FKDQJHUV$OWHUQDWLYHWR*3
HLS Start with high temperatures of the user liquid (Hot Start):7REHSURYLGHGLIWKHXQLWPXVWEHVWDUWHGZLWKWKHWHPSHUDWXUH
RIWKHLQOHWZDWHUKLJKHUWKDQWKHPD[LPXPDGPLWWHGYDOXH
IH RS 485 Serial interface:(OHFWURQLFFDUGWREHFRQQHFWHGWRWKHPLFURSURFHVVRUWRDOORZFRQQHFWLRQRIWKHXQLWVWRVXSHUYLVLRQ
V\VWHPVIRUDUHPRWHFRQWURODQGPRQLWRULQJRIWKHXQLW$OWHUQDWLYHWR,+%$&,+/21RU,:*
IH BAC BACNET Protocol Serial Interface:*DWHZD\WREHFRQQHFWHGWRWKHPLFURSURFHVVRUWRDOORZWKHFRQQHFWLRQRIWKHXQLWWR
H[WHUQDOVXSHUYLVLRQV\VWHPZLWK%$&1(73URWRFROLQRUGHUWRIXOO\DQGUHPRWHO\DVVLVWDQFHDOWHUQDWLYHWR,+,+/21DQG
,:*
IH LON LON Protocol Serial Interface:*DWHZD\WREHFRQQHFWHGWRWKHPLFURSURFHVVRUWRDOORZWKHFRQQHFWLRQRIWKHXQLWWRH[WHUQDO
VXSHUYLVLRQV\VWHPZLWK/213URWRFROLQRUGHUWRIXOO\DQGUHPRWHO\DVVLVWDQFHDOWHUQDWLYHWR,+,+%$&DQG,:*
IM Seawood packing: )XPLJDWHGVHDZRRGFDVHDQG¿OPHQYHORSHWRJHWKHUDGGHGZLWKVORZO\YDSRUL]LQJFRUURVLRQLQKLELWRUV
FRPSOHWHO\QLWUDWHVDQGKHDY\PHWDOV9&,IUHHVXLWDEOHIRUORQJVHDWUDQVSRUWV
IWG TCP/IP Protocol serial interface: *DWHZD\ WR EH FRQQHFWHG WR WKH PLFURSURFHVVRU WR DOORZ FRQQHFWLRQ RI WKH XQLWV WR
VXSHUYLVLRQV\VWHPVZLWK7&3,3SURWRFROIRUDUHPRWHFRQWURODQGPRQLWRULQJRIWKHXQLW$OWHUQDWLYHWR,+RU,+%$&

Rev. A 12-2018
15
MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
LI Liquid injection:0HFKDQLFDOGHYLFHDOORZLQJDEHWWHUFRROLQJRIFRPSUHVVRUVDWYHU\KLJKFRPSUHVVLRQOHYHO
OS 2LOÁRZVDIHW\VZLWFK%XLOWLQLQWKHFRPSUHVVRUWRFRQWUROWKHFRPSUHVVRULQWHUQDORLOÀRZUDWHLWVLJQDOVDQ\GHFUHDVHLQWKH
RLOOHYHO,WLVDQRSWRHOHFWURQLFVWDWLFÀRZGHYLFH
PA Rubber-type vibration dampers:9LEUDWLRQEHOOW\SHGDPSHUVIRULQVXODWLQJWKHXQLWIURPWKHVXSSRUWEDVHVXSSOLHGLQNLW
FRPSRVHGRIDEHOOEDVHLQJDOYDQL]HGVWHHODQGUXEEHUFRPSRXQGDOWHUQDWLYHWR30
PM Spring-type vibration dampers:6SULQJW\SHYLEUDWLRQGDPSHUVVXSSRUWIRULQVXODWLQJWKHXQLW VXSSOLHG LQ NLW PDLQO\
LQGLFDWHGIRULQVWDOODWLRQLQGLI¿FXOWDQGDJJUHVVLYHHQYLURQPHQWV0DGHRIWZRVWHHOSODWHVFRQWDLQLQJDVXLWDEOHTXDQWLW\RI
KDUPRQLFVWHHOVSULQJV$OWHUQDWLYHWR3$
PQ Remote display:5HPRWHLQWHUIDFHGLVSOD\LQJWHPSHUDWXUHYDOXHVGHWHFWHGE\SUREHVDODUPGLJLWDOLQSXWVRXWSXWVUHPRWH
212))RIWKHXQLW,WDOVRJLYHVWKHSRVVLELOLW\WRFKDQJHDQGSURJUDPSDUDPHWHUVDQGUHSRUWGLVSOD\DODUPV
RA Anti-freeze heater on evaporator:(OHFWULFDOKHDWHULQVWDOOHGRQWKHHYDSRUDWRULQRUGHUWRSUHYHQWIUHH]LQJDQGSURYLGHG
ZLWKWKHUPRVWDW
RD Shut-off valve on compressors discharge side:7KH\DUHXVHGWRLVRODWHFRPSUHVVRUVGXULQJVHUYLFHRSHUDWLRQ
RH Shut-off valve on compressors suction side:7KH\DUHXVHGWRLVRODWHFRPSUHVVRUVGXULQJVHUYLFHRSHUDWLRQ
RL Compressor overload relays:(OHFWURPHFKDQLFDOSURWHFWLRQGHYLFHVDJDLQVWFRPSUHVVRUVRYHUORDG
RP Partial heat recovery:5HIULJHUDQWZDWHUSODWHH[FKDQJHUGHVXSHUKHDWHULQVHULHVWRWKHFRPSUHVVRUV,WLVXVHGWRSDUWLDOO\
UHFRYHUFRQGHQVLQJKHDWFDSDFLW\DERXWIRUSURGXFWLRQRIVDQLWDU\ZDWHU
TE Electronic thermostatic valve:(OHFWURQLFWKHUPRVWDWLFYDOYHWKDWUHGXFHVWKHUHVSRQVHWLPHVRIWKHXQLW8VHIXOLQFDVHRI
IUHTXHQWFKDQJHVRQFRROLQJGHPDQGVRDVWRLPSURYHHI¿FLHQF\
VVoltmeter:(OHFWULFDOGHYLFHPHDVXULQJWKHHOHFWULFDOYROWDJHRIWKHXQLWSRZHUVXSSO\
VS Solenoid valve: (OHFWURPDJQHWLFVROHQRLGYDOYHRQHDFKFRROLQJFLUFXLWWRFXWRIIWKHOLTXLGOLQHDWFRPSUHVVRUVVZLWFKRII

Rev. A 12-2018
16
RAH MC HT Ka 481 571 661 761 841 941
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N: 191     382
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P2.:      
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MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
3.4 Technical data
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17
RAH MC HT Ka 728 832 962 1102 1302 1502
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MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
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RAH MC HT Ka Water chiller - high ambient temperature operation
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Rev. A 12-2018
20
10 -3.2 0.985 1 1.02 1.08
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30 -14.1 0.97 0.98 1.09 1.22
40 -22.3 0.965 0.97 1.14 1.25
50 -33.8 0.955 0.965 1.2 1.33
358
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IPCF 0.99 1 1.01
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IPCF 1 0.98 0.95
MTEC.ERAH.GB-A-1 Operation and maintenance manual ERAH MC HT Ka series English
RAH MC HT Ka Water chiller - high ambient temperature operation
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Glycol percentage Freezing point (°C) CCF IPCF WFCF PDCF
Water temperature diff.(°C)
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3.8.1 Operation with glycol
3.8 Correction tables
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3.8.3 Correction tables different Fouling factors
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