Example Wiring Diagrams - Daikin PreciseLine Series Installation And Maintenance Manual

Example Wiring Diagrams

NOTE: Wiring diagrams are typical, always defer to the wiring diagram provided with the unit.
3 Phase Power, SCR Electric Heat, No Valve, Modulating Damper, VFD Fan
Legend: (Devices may or may not be on unit)
ACT Mixing Box Damper Actuator
COS Condensate Overflow Switch/Sensor
DAT Discharge Air Temperature Sensor
DS Disconnect Switch
EB MicroTech III I/O Expansion Board
EWT Entering Water Temperature
FM1-2 Fan Motor
FRZ Freeze Alarm Switch
FSW Fan 3-Speed Switch
G075 Quick Connect Splice
HTR1-4 Electric Heater Elements
LVB Low Voltage Control Board
MIII MicroTech III Control Board
NCB Network Communication Board
OAT Outside Air Temperature Sensor
OHA Automatic High Temp Cutout Switch
OHM Manual High Temp Cutout Switch
IM 1267-7 • PRECISELINE AIR HANDLER
Hot Wire Colors
480V = BLK/RED
575 = BLK
MMP/Fuse
575V = Fuse
208/240/480V = MMP
PB1 Main Power Distribution Block
PB2 Electric Heat Power Distribution Block
PB3 24VAC Power Distribution Block
TB4 EC Motor Control Terminal Block
TB5 Intermediate Electric Heat Terminal Block
TB6 No Controls Terminal Block
RAT Return Air Temperature Sensor
R1-2 Electric Heater Power Relay
R3 Electric Heater Control Relay
TS1-2 Thermal Switch (Intermediate Electric Heat)
TS3 Thermal Switch (Automatic Change Over)
TR Control Transformer
VSV1-2 Coil Valve Actuator (Primary or Secondary)
Wxxx Wire
WHxxx Wire Harness
WPxxx Wire Plug
WNxxx Wire Nut
56
Example Wiring Diagrams
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