IMPPUMPS NMT MAX Series - Twin Pump Operation Modes

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5.2.1 TWINPUMPOPERATION
Twinpumphasdoublehydraulichousingwithintegratedcheckvalve,whichautomaticlyturnsbasedonmedium
flow,andtwoseparatedmotors.PumpscommunicatewitheachotherthroughEthernetconnection(onlyavailable
onMAXC).Nightmodeisnotrecommendedinthismodeofoperation.
Pumpscanoperateinseveraldifferentmodes,switchingbetweendthepumpsisdonebythecommunications
module:
‐ Alternatingoperation[default setting] –Onepumpisoperatingwhiletheotheroneisonstandby.Pumps
switchtheirroleevery24hoursorwhenanerroroccursononepump.
‐ Backupoperation–Onepumpoperatesconstantlyandtheotheroneisonstandby.Ifanerroroccurson
theoperatingpumptheoneonstandbywillautomaticlystartworking.Thismodecanbesetupbyturning
offthepumpthatwewishtobeonstandby.Thatisdonebyholdingthe
buttonfor5seconds.
‐ Paralleloperation–Bothpumpsworkatthesametimewiththesamesettingsofconstantpressure.This
modeisusedwhengreaterflowthanonesinglepumpcanoutputisneeded.Whenthefirstpumphitsits
flowlimitthesecondoneturnsonandcomplimentsthefirsttoreachdesiredflow.
Thismodeisactivatedwhenwesetbothpumpstoconstantpressuremode.
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OnNMT(D)MAXpumpstheswitchingisdonebytheuser.
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