IM 1267-7 • PRECISELINE AIR HANDLER 56 www.DaikinApplied.com
Example Wiring Diagrams
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
PB1
Main Power Distribution Block
COS
Condensate Overflow Switch/Sensor
PB2
Electric Heat Power Distribution Block
DAT
Discharge Air Temperature Sensor
PB3
24VAC Power Distribution Block
DS
Disconnect Switch
TB4
EC Motor Control Terminal Block
EB
MicroTech III I/O Expansion Board
TB5
Intermediate Electric Heat Terminal Block
EWT
Entering Water Temperature
TB6
No Controls Terminal Block
FM1-2
Fan Motor
RAT
Return Air Temperature Sensor
FRZ
Freeze Alarm Switch
R1-2
Electric Heater Power Relay
FSW
Fan 3-Speed Switch
R3
Electric Heater Control Relay
G075
Quick Connect Splice
TS1-2
Thermal Switch (Intermediate Electric Heat)
HTR1-4 Electric Heater Elements
TS3
Thermal Switch (Automatic Change Over)
LVB
Low Voltage Control Board
TR
Control Transformer
MIII
MicroTech III Control Board
VSV1-2
Coil Valve Actuator (Primary or Secondary)
NCB
Network Communication Board
Wxxx Wire
OAT
Outside Air Temperature Sensor
WHxxx
Wire Harness
OHA
Automatic High Temp Cutout Switch
WPxxx
Wire Plug
OHM
Manual High Temp Cutout Switch
WNxxx
Wire Nut
Hot Wire Colors
480V = BLK/RED
575 = BLK
MMP/Fuse
575V = Fuse
208/240/480V = MMP
Summary of Contents for PreciseLine Series
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