Emerson IC200CX EVO - 4 Cooling;Heating Operation Mode; Mode Change by Digital Input

IC200CXEVO
usermanual
11
COOLING/HEATINGOPERATIONMODE
4
Thechangeoftheunitoperatingmode(chillermode,heatpumpmode)canoccur:
• Fromdigitalinputconfiguredasmodechange
• Fromkeyboard
Attention:thefactorysettingis"keyboardmodechange"forunitsorderedwiththeoptional
remotekeypad,and"digitalinputmodechange"forunitswithoutthisaccessory.The
configurationcanbemodified,i.e.themodechangecanbeperformedbydigitalinputevenon
unitsequippedwitharemotekeypad.
4.1Modechangebydigitalinput
Ifyouintendtousethefunctionchangemodeviadigitalinput,identifytherelevantterminalsinthe
wiringdiagram(terminals18)andconnectthemtoanexternalselector.
Warning:duringthechangeoverphasemakesuretostaywithintheoperatinglimitsoftheunit.
Forexample,changingtheheatpumpmodetothechillermodecouldcausetoenterintheunit
previouslyheatedwaterabovethelimitsallowedintheincoolingmode,causingmalfunctions.It
isstronglyadvisabletoperformaunitstopwithanappropriatedurationbeforeproceedingto
changetheoperatingmode.
Withthecontactinactive(no
bridgeintheterminalboard)
theunitisinchillermode.
Withactivecontact(bridgein
terminalblock)theunitisin
heatpumpmode.
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