Daikin Enfinity VFC - CONTROLS

Controls
www.DaikinApplied.com 13 EnnityVerticalWaterSourceHeatPumps• IM 930-6
Table 8: MicroTech® III Unit Controller Terminals
Locations and Descriptions
H1–1 24 24VACPowerInput
H1–2 C 24VACcommon
H2–1 SL1 FanLowSpeedOutput–SwitchedL1
H2–2 BlankTerminal
H2–3 N FanLowSpeedOutput–Neutral
H3–1 HP1-1 CompHighPressureSwitch(HP1)InputTerminal1
H3–2 HP1-2 CompHighPressureSwitch(HP1)InputTerminal2
H4–1 1 DischargeAirTempSensor–Common
H4–2 DischargeAirTempSensor–Signal
H4–3 LeavingWaterTempSensor–Common
H4–4 LeavingWaterTempSensor–Signal
H5–1 1 I/OExpansionModuleCommon(Gnd)
H5–2 I/OExpansionModuleCommon(Gnd)
H5–3 I/OExpansionModule+5VDC
H5–4 I/OExpansionModuleSPICE1
H5–5 I/OExpansionModuleSPICLK
H5–6 I/OExpansionModuleSPIOUT
H5–7 I/OExpansionModuleSPIIN
H5–8 I/OExpansionModule+12VDC
H5–9 I/OExpansionModule24VAC
H5–10 I/OExpansionModule24VAC
H5–11 No Connection
H5–12 No Connection
H6–1 1 CondensateOverowSignalInput
H6–2 CompressorSuctionTempSensor(LT1)–Common
H6–3 CompressorSuctionTempSensor(LT1)–Signal
H6–4 CompressorLowPressureSwitch(LP1)–SourceVoltage
H6–5 CompressorLowPressureSwitch(LP1)–Signal
H6–6 ReversingValve–Common
H6–7 ReversingValve–Output
H7–1 1 No Connection
H7–2 No Connection
H7–3 RedLEDOutput
H7–4 GreenLEDOutput
H7–5 YellowLEDOutput
H7–6 Red-Green-YellowLEDCommon
H8–1 1 IsolationValve/PumpRequestRelayN/O
H8–2 IsolationValve/PumpRequestRelayN/C
H8–3 24VACCommon
H9–1 1 RoomTempSensor&TenantOverride–Signal
H9–2 RoomTempSensor&TenantOverride–Common
TB1–1 1 RoomSensor–StatusLEDOutput
TB1–2 2 RoomSensor–FanMode&UnitModeSwitches
TB1–3 3 RoomSensor–SetpointAdjustPotentiometer
TB1–4 4 RoomSensor–RoomTempSensor&TenantOverride
TB1–5 5 RoomSensor–DCSignalCommon
TB2–1 R 24VAC
TB2–2 A Alarm Output
TB2–3 W2 Thermostat–HeatStage#2Input
TB2–4 W1 Thermostat–HeatStage#1Input
TB2–5 Y2 Thermostat–CoolStage#2Input
TB2–6 Y1 Thermostat–CoolStage#1Input
TB2–7 G Thermostat–FanInput
TB2–8 O Thermostat–TenantOverrideInput
TB2–9 C 24VACCommon
TB3–1 E EmergencyShutdownInput
TB3–2 U Unoccupied/Occupied Input
L1–1 L1-1 LineVoltageTerminal1
L1–2 L1-2 LineVoltageTerminal2
L1–3 L1-3 LineVoltageTerminal3
N1 N1 Neutral Terminal 1
N2 N2 Neutral Terminal 2
N3 N3 Neutral Terminal 3
COMP
Relay
SWL1 Switch–L1Voltage
L1 No Connection
Table 9: MicroTech III Controller Configuration Jumper Settings
Baseboard Description Jumper(s) Jumper Setting Function
Normal / Test Mode JP1
Open Normal Operation
Shorted Service/TestMode
Fan Operation JP2
Open ContinuousFanOperation(On)
Shorted CyclingFanOperation(Auto)
Loop Fluid
JP3
(seewarning)
Open Waterfreezeprotection(factorydefaultsetting)
Shorted Systemswithanti-freezeprotection
Alarm "A" Terminal Output Polarity JP4
Open Faultde-energizesalarmoutputto0VAC.
Shorted Faultenergizesalarmoutputto24VAC.
Room Sensor Setpoint
Potentiometer Range
JP5
Open ShortRange:-3to+3ºF(-1.67to+1.67ºC)
Shorted LongRange:55to95ºF(12.78to35ºC)
Thermostat / Room Sensor JP6
Open ThermostatControl
Shorted RoomSensorControl
Not Used JP7 Open –
Not Used JP8 Open –
WARNING
Properantifreeze/watersolutionisrequiredtominimizethepotentialofuidfreeze-up.JumperJP3isfactorysetforwaterfreezeprotectionwiththejumperopen.Operationwithanti-freeze
protectionrequiresJP3tobeeldconguredforthejumperclosed.Ifunitisemployingafreshwatersystem(noanti-freezeprotection),itisextremelyimportantthatJP3jumpersetting
remainsintheopenposition(factorydefaultsetting)inordertoshutdowntheunitattheappropriatewatertemperaturetoprotectyourheatpumpfromfreezing.Failuretodosocanresult
inunitdamageanduidleaks.”