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:
0HFKDQLFDOGHYLFHDOORZLQJDEHWWHUFRROLQJRIFRPSUHVVRUVDWYHU\KLJKFRPSUHVVLRQOHYHO
OS
2LOÁRZVDIHW\VZLWFK
%XLOWLQLQWKHFRPSUHVVRUWRFRQWUROWKHFRPSUHVVRULQWHUQDORLOÀRZUDWHLWVLJQDOVDQ\GHFUHDVHLQWKH
RLOOHYHO,WLVDQRSWRHOHFWURQLFVWDWLFÀRZGHYLFH
PA
Rubber-type vibration dampers:
9LEUDWLRQEHOOW\SHGDPSHUVIRULQVXODWLQJWKHXQLWIURPWKHVXSSRUWEDVHVXSSOLHGLQNLW
FRPSRVHGRIDEHOOEDVHLQJDOYDQL]HGVWHHODQGUXEEHUFRPSRXQGDOWHUQDWLYHWR30
PM
Spring-type vibration dampers:
6SULQJW\SH YLEUDWLRQ GDPSHUV VXSSRUW IRU LQVXODWLQJ WKH XQLW VXSSOLHG LQ NLW PDLQO\
LQGLFDWHGIRULQVWDOODWLRQLQGLI¿FXOWDQGDJJUHVVLYHHQYLURQPHQWV0DGHRIWZRVWHHOSODWHVFRQWDLQLQJDVXLWDEOHTXDQWLW\RI
KDUPRQLFVWHHOVSULQJV$OWHUQDWLYHWR3$
PQ
Remote display:
5HPRWHLQWHUIDFHGLVSOD\LQJWHPSHUDWXUHYDOXHVGHWHFWHGE\SUREHVDODUPGLJLWDOLQSXWVRXWSXWVUHPRWH
212))RIWKHXQLW,WDOVRJLYHVWKHSRVVLELOLW\WRFKDQJHDQGSURJUDPSDUDPHWHUVDQGUHSRUWGLVSOD\DODUPV
RA
Anti-freeze heater on evaporator:
(OHFWULFDOKHDWHULQVWDOOHGRQWKHHYDSRUDWRULQRUGHUWRSUHYHQWIUHH]LQJDQGSURYLGHG
ZLWKWKHUPRVWDW
RD
Shut-off valve on compressors discharge side:
7KH\DUHXVHGWRLVRODWHFRPSUHVVRUVGXULQJVHUYLFHRSHUDWLRQ
RH
Shut-off valve on compressors suction side:
7KH\DUHXVHGWRLVRODWHFRPSUHVVRUVGXULQJVHUYLFHRSHUDWLRQ
RL
Compressor overload relays:
(OHFWURPHFKDQLFDOSURWHFWLRQGHYLFHVDJDLQVWFRPSUHVVRUVRYHUORDG
RP
Partial heat recovery:
5HIULJHUDQWZDWHUSODWHH[FKDQJHUGHVXSHUKHDWHULQVHULHVWRWKHFRPSUHVVRUV,WLVXVHGWRSDUWLDOO\
UHFRYHUFRQGHQVLQJKHDWFDSDFLW\DERXWIRUSURGXFWLRQRIVDQLWDU\ZDWHU
TE
Electronic thermostatic valve:
(OHFWURQLFWKHUPRVWDWLFYDOYHWKDWUHGXFHVWKHUHVSRQVHWLPHVRIWKHXQLW8VHIXOLQFDVHRI
IUHTXHQWFKDQJHVRQFRROLQJGHPDQGVRDVWRLPSURYHHI¿FLHQF\
V
Voltmeter:
(OHFWULFDOGHYLFHPHDVXULQJWKHHOHFWULFDOYROWDJHRIWKHXQLWSRZHUVXSSO\
VS
Solenoid valve:
(OHFWURPDJQHWLFVROHQRLGYDOYHRQHDFKFRROLQJFLUFXLWWRFXWRIIWKHOLTXLGOLQHDWFRPSUHVVRUVVZLWFKRII