Daikin MicroTech III DPS Installation And Maintenance Manual

Contents

Daikin MicroTech III DPS Installation And Maintenance Manual Manual pdf 27 page image

Commission Unitwww DaikinApplied com27 OM 1263 • MICROTECH UNIT CONTROLLERExpansion Valve Set-UpTable 15: Expansion Valve Set Up MenuItem DisplayName DefaultSetting Range PasswordLevelExpansion Valve StatusEVI Pos= — 0–100% 4EVO Pos= — 0–100% 4EV Status= —OK4EVIErrEVOErrEVI&OErrInitErrMBErrRefrigerant Circuit StatusPTS= — 0–5000kPa 4PTD= — 0–5000kPa 4Suction SH= — -100 0–100 0°F 4Discharge SH= — -100 0–100 0°F 4Subcooling= — -100 0–100 0°F 4Eff SSH Spt= — 3 0–22 0°F 2EffSH Base= — 5 0–9 0°F 2Eff SC Spt= — 0 0–15 0°F 2Eff SC Lo Lmt= — 0–100% 2SRT= — -50 0–200 0°F 2Disch Sat Tmp= — -50 0–212 0°F 2Sucn Sat Tmp= — -50 0–212 0°F 2IRT= — -50 0–200 0°F 2ORT= — -50 0–200 0°F 2Expansion Valve Set UpSSH DB= 0 5°F 0–10 0°F 2SSHLoBase= 5 0°F 0–10 0°F 2SSHHiBase= 8 0°F 0–10 0°F 2Htg EVI Meth= STD STD 2SbcIC SC Spt= — 0–15 0°F 2IC SC DB= — 0 0–10 0°F 2HtgSC EVI Min= 0% 0–100% 4Clg EVO Meth= STD STD 2ALTOC SC Spt= — 0–15 0°F 2OC SC DB= — 0 0–10 0°F 2ClgSC EVI Min= 0% 0–100% 4ManCtrl EV Op= Auto Man 2AutoEVO Pos (Heat Pump only) is a status only item whichdisplays the current position of the outdoor expansion valveEVI Pos is a status only item which displays the currentposition of the indoor expansion valveEVI Status is a status only item which displays the currentstatus of the connection between the IFB communication boardand the expansion valve control board (EVB)PTS is a status only item which displays the current suctionrefrigerant line pressure sensor readingPTD is a status only item which displays the current dischargerefrigerant line pressure sensor readingSuction SH is a status only item which displays the currentsuction superheat value based on suction temperature minussaturated suction pressureDischarge SH= is a status only item that indicates the currentdischarge superheat value based on discharge refrigeranttemperature minus the discharge saturation temperatureSubcooling (Heat Pump only) is a status only item whichdisplays the current discharge subcooling valueEff SSH Spt is a status only item which displays the effectivesuction superheat set point This value varies depending onsuction and discharge superheat conditionsEff SH Base is a status only item which displays the effectivesuction superheat base set point value This value is normallyset equal to the SH Hi Base value but can be lowered towardthe SH Lo Base value during steady state supply fan andcompressor operationEff SC Spt (Heat Pump only) is a status only item whichdisplays the effective subcooling set point. This value isnormally set equal to the IC SC Spt (or OC SC Spt) value butcan be raised toward 15°F during steady state supply fan andcompressor operationEff SC Lo Lmt (Heat Pump only) is a status only item whichdisplays the effective subcooling expansion valve position lowlimit This value is normally set to the 50% but can be loweredduring steady state supply fan and compressor operationSRT is a status only item which displays the current suctionrefrigerant line temperature sensor reading This value is usedto calculate suction superheatDisch Sat Tmp is a status only item which displays the currentdischarge pressure equivalent saturation temperature.Sucn Sat Tmp is a status only item which displays the currentsuction pressure equivalent saturation temperature.