Rev. A 12-2018
32
&
23
2
-----
&
50 * **
2
-----
&
2
%DU
27
----
-----
%DU
18
----
-----
%DU
20
----
%DU
1
1
A
B
C
D
A
B
C
D
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
,IWKHXQLWLVUHTXLUHGIRUKHDWLQJFRROLQJRQO\ZLWKRXWGRPHVWLFKRWZDWHUSURGXFWLRQWKHLQWHUQDOSDUDPHWHURIWKHPL
-
FURSURFHVVRU)6KDVWREHPRGL¿HGIURPWRLQRUGHUWRDYRLGFRQ¿JXUDWLRQDODUPV3OHDVHFRQWDFWWKHFRPSDQ\IRU
support.
5.1.2 Device and security Set-point
5.1.3 Controls during unit operation
•
&KHFNWKHURWDWLRQRIWKHFRPSUHVVRUVDQGIDQV,IWKHURWDWLRQLVLQFRUUHFWGLVFRQQHFWWKHPDLQVZLWFKDQGFKDQJHRYHUDQ\WZRSKDVHV
RIWKHLQFRPLQJPDLQVXSSO\WRUHYHUVHPRWRUURWDWLRQRQO\IRUXQLWVZLWKWKUHHSKDVHIDQPRWRUV
•
$IWHUVHYHUDOKRXUVRIRSHUDWLRQFKHFNWKDWWKHVLJKWJODVVKDVDJUHHQFRORXUFRUHLIWKHFRUHLV\HOORZPRLVWXUHLVSUHVHQWLQWKHFLUFXLW
,QWKLVHYHQWLWLVQHFHVVDU\IRUGHK\GUDWLRQRIWKHFLUFXLWWRWDNHSODFH7KLVPXVWEHSHUIRUPHGE\TXDOL¿HGSHRSOHRQO\&KHFNWKDWWKHUH
DUHQRFRQWLQXRXVYDSRXUEXEEOHVSUHVHQWDWWKHVLJKWJODVV7KLVZRXOGLQGLFDWHDVKRUWDJHRIUHIULJHUDQW$IHZYDSRXUEXEEOHVDUH
DFFHSWDEOH
Device
Set-point
Differential
Reset
&RROLQJPRGH
'+:PRGH
$QWLIUHH]HWKHUPRVWDW
0DQXDO
+LJKSUHVVXUHVDIHW\YDOYH
/RZSUHVVXUHVDIHW\YDOYH
+LJKSUHVVXUHVZLWFK
0DQXDO
/RZSUHVVXUHVZLWFK
$XWRPDWLF
'HIDXOWYDOXHV'LIIHUHQWYDOXHVFDQEHVHWRQUHTXHVW
:LWK53DFFHVVRU\
A
B
C
D
5.1.4 Start with high temperatures of the user liquid (Hot Start) (HLS)
,WFRQVLVWVRIDZD\YDOYHWREHLQVHUWHGLQWKHK\GUDXOLFFLUFXLWZKLFKGHSHQGLQJRQWKHFKLOOHULQOHWZDWHUWHPSHUDWXUHGLYHUWVSDUWRI
WKHRXWOHWÀRZWRZDUGVWKHHYDSRUDWRUHQWUDQFHUHGXFLQJWKHLQOHWZDWHUWHPSHUDWXUH7KHRSHQLQJRIWKHYDOYHLVUHJXODWHGE\DVSHFLDO
FRQWUROOHUVXSSOLHGLQWKHNLWWRJHWKHUZLWKWKHWHPSHUDWXUHSUREH
6XSSO\
Return
Chiller
5HFLUFXODWLRQ
