Daikin MicroTech I Operation & Maintenance Manual

OM 931-6 • MicroTech III Unit Controller for WSHP 24 www.DaikinApplied.com
appendIx C – typICal WIrIng dIagraMs
MicroTech III Unit Controller with Optional ECM Motor, Desuperheater,
and I/O Expansion Module 208/230/460/60/3-Phase
Drawing No. 668991401
Wiring diagrams are typical. For the latest drawing version
refer to the wiring diagram located on the inside of the
controls access panel of the unit.
Note: Gray tinted areas in the wiring diagram: Units with factory installed communication module include Discharge Air Temperature (DAT) and
Return Air Temperature (RAT) sensors shipped loose and are field installed. The Leaving Water Temperature (LWT) sensor is factory installed.
Entering Water Temperature (EWT) sensor is included with ECM and/or Secondary Electric Heat.
Table B
208V RED
230V ORG
460V BLK/RED
Legend
Item Description
C1 Capacitor-Compressor
C2 Capacitor-Fan
CC Compressor - Contactor
CM Compressor - Motor
CDS Condensate Overow Sensor
DAT Discharge Air Temp Sensor
EWT Entering Water Temp Sensor
HP High Pressure Switch
HTR Electric Heater Cartridge
IOEXP I/O Expansion Board / Harness
ISO-NC Isolation Valve - Normally Closed
ISO-NO Isolation Valve - Normally Open
LED1 LED Annunciator / Harness
LED2 LED Annunciator / Harness
LP Low Pressure Switch
SLTS Suction Line Temp Sensor
LWT Leaving Water Temp Sensor
MIII MicroTech III Main Board
R1 Relay - Fan Motor
R2 Relay - Electric Heat
RAT Return Air Temp Sensor
RV Reversing Valve Solenoid
TB1 Power Terminal Block
X1 Transformer
_____
Standard Unit Wiring
_ _ _ _
Optional Wiring (by others)
Notes:
Transformer:
Unused wire to be capped.
Desuperheater only available on
115-208-230V applications.

Daikin MicroTech I Specifications

General

Brand	Daikin
Model	MicroTech I
Category	Controller
Language	English