Rev. A 12-2018
28
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
7KHFRLOLVSURWHFWHGDJDLQVWFRUURVLRQWKDQNVWRWKHKLJKTXDOLW\RIWKHDOXPLQLXPDOOR\DQGWRWKHVSHFLDOVXUIDFHSURWHFWLRQJLYHQE\VSUD\
GHSRVLWLRQRIHSRVVLGLFFRDWLQJ
,IWKHHQYLURQPHQWRIWKHXQLWLQVWDOODWLRQVLWHLVVWURQJO\DJJUHVVLYHDVSHFLDOVXUIDFHFRDWLQJREWDLQHGE\HOHFWURGHSRVLWLRQLVDOVRDYDLODEOH
DVDQRSWLRQ
4.15.1 Corrosive environmental conditions
$UHDVWKDWFDQSURYHWKHDOXPLQLXPFRLOVFRUURVLRQUHVLVWDQFHLQFOXGHFRDVWDODUHDVKLJKSRSXODWHGXUEDQDUHDVDQGLQGXVWULDOVLWHV
WKHUHDOVRDUHVRPHVSHFLDODSSOLFDWLRQVZKLFKHYHQLIQRWLQFOXGHGLQWKHDPDUHDVFDQDOVREHGDQJHURXVOLNHSRUWVDQGDLUSRUWVKLJK
WUDI¿F]RQHVVHZDJHSODQWVSRZHUSODQWVDUHDVQHDUWRFKHPLFDOLQGXVWULHVEUHZHULHVIRRGSURFHVVLQJRULQFLQHUDWLRQSODQWV,QWKHVH
FLUFXPVWDQFHVWKHKLJKSUHVHQFHRISROOXWLRQDJHQWVLQWKHDLUIDYRXULWHVWKHIRUPDWLRQRIHOHFWURO\WHVFRQGXFWRUVRIHOHFWULFLW\LIGLVVROYHG
LQZDWHUIDYRXULQJLQWKLVZD\WKHDFWLYDWLRQRIFRUURVLYHSKHQRPHQD,QWKHDPFLUFXPVWDQFHVSURWHFWWKHDOXPLQLXPH[FKDQJHUVVXUIDFH
ZLWKVSHFLDOWUHDWPHQWVZKLFKLQFUHDVHWKHLUOLIHWLPHZLWKRXWFRPSURPLVLQJWKHKHDWH[FKDQJHHI¿FLHQF\
1HDUWKHFRDVWDODUHDVIRUH[DPSOHWKHKXPLGLW\LQWKHDLULVULFKRIVRGLXPFKORULGHDQGVXOSKXUZKLFKLQFRQWDFWZLWKPHWDOFDQHDVLO\VWDUW
FRUURVLRQSKHQRPHQD0RUHRYHUWKHVDOLQHDWPRVSKHUHZKLFKLVLWVHOIKLJKFRUURVLYHDFWVDVDFWLYDWRULQSUHVHQFHRILQGXVWULDOHPLVVLRQV
7KLVLVWKHUHDVRQZK\WKHLQGXVWULDOPDULQHFRQWH[WLVWKHZRUVWVLWXDWLRQLQWHUPVRIFRUURVLRQ
,QGXVWULDODUHDVKLJKSRSXODWHGXUEDQRQHVDQGWKRVHQHDUSRUWDQGDLUSRUWVDUHLQVWHDGFKDUDFWHUL]HGIURPDQKLJKFRQFHQWUDWLRQLQWKH
DLURI6XOSKXU62±6DQG1LWURJHQ12[GHULYHGIURPFDUERQDQGIRVVLOK\GURFDUERQVFRPEXVWLRQ7KHVHDLUERUQHVXEVWDQFHVIDOO
GRZQWRWKHJURXQGDVDFLGUDLQGHZV%HVLGHVQHDULQGXVWULDODUHDVWKHUHDUHLQWKHDLUDOVRSDUFHOVRIPHWDOR[LGHVFKORULGHV
VXOSKDWHVVXOSKXULFDFLGFDUERQDQGLWVFRPSRXQGVSDUFHOVWKDWLQFRQWDFWZLWKR[\JHQZDWHURUVWHDPFDQEHKLJKFRUURVLYHDEOHVRWR
FRUURGHPDQ\PDWHULDOVDPRQJZKLFKDOXPLQLXPLURQVWHHOEUDVVFRSSHUDQGQLFNHO
4.15.2 Microchannel aluminium condensing coils with AiAX_Coating treatment (Optional ECP)
7KH\DUHPDGHXSRIDOXPLQLXPDOOR\DQGDVVHPEOHGXVLQJEUD]HGMRLQWV&RLOVDIWHUDZDVKLQJDQGGU\LQJSURFHVVDQGDIWHUWKHDSSOL
-
FDWLRQRIDSULPHUDUHEODFNVSUD\SDLQWHG7KHZDWHUEDVHGVXEVWDQFHLVFRPSRVHGRIYHU\KLJKFKHPLFDOUHVLVWDQFHUHVLQVZKLFKJUDQW
ÀH[LELOLW\WRUHVLVWWRWKHUPDOFRQWUDFWLRQVH[SDQVLRQVDQG89UD\VJUDQWLQJDPHFKDQLFDOUHVLVWDQFHDVZHOO7KHVXUIDFHDSSOLHGPDWHULDO
WKLFNQHVVLVDERXWPDQGLQYROYHVDKHDWWUDQVPLVVLRQORVWRIDERXW
7KHH[FKDQJHUVWUHDWHGZLWKVXUIDFHSURWHFWLRQSDLQWHYHQLISURWHFWHGDJDLQFRUURVLRQPXVWDQ\ZD\EHSHULRGL
-
FDOO\LQVSHFWHGQHYHUPRUHIUHTXHQWO\WKDQPRQWKVXQGHUQRQDJJUHVVLYHRSHUDWLQJFRQGLWLRQVPRQWKVRWKHU
-
ZLVHWRFKHFNWKHUHDOFRQGLWLRQRIWKHVXUIDFHSURWHFWLRQ,ILWKDVEHHQVFUDWFKHGRUWRWDOO\RUSDUWLDOO\GDPDJHG
WKHXQFRYHUHGDUHDPXVWEHRQFHPRUHSURWHFWHGZLWKDQHZSURWHFWLYHWUHDWPHQW
,IWKHXQLWLVLQVWDOOHGLQVWURQJO\ZLQG\DUHDVQHDUFRDVWVRUGHVHUWVRULQDUHDVVXEMHFWVWRZLQGDQGRUVDQG
VWRUPVLQVSHFWWKHXQLWPRUHIUHTXHQWO\HYHU\WKUHHPRQWKVWRFKHFNWKHUHDOFRQGLWLRQRIWKHVXUIDFHSURWHFWLRQ
