www.DaikinApplied.com 45
IM 817-7
Typical MicroTech Wiring Diagram – Service and Disconnect, 115Volt / 60Hz / 1 Phase
Legend - Symbols
Accessory or field mounted component
Ground
Wire nut / splice
Overlap point - common potential wires
L1/1.20
Wire link (wire link ID / page # . line #)
Table 34: Legend for Typical MicroTech Wiring
Symbol Description
Symbol Description
Symbol Description
A1
Actuator- Outdoor Air
OH1
Thermostat - Overheat
MCB
Main Control Board
A2
Actuator- Face & Bypass
OH2
Thermostat - Overheat
IH
Sensor - Indoor Humidity
C1
Compressor Contactor
OHM
E.H. Man Reset - Overheat Stat
OH
Sensor - Outdoor Humidity
CAP1
Capacitor Run
PL1
LED Occupancy / Fault Status
CO2
Sensor - Indoor Air CO2
CEH1-3
Electric Heat Contactor
R1-R3
Relay Electric Heat (Backup)
DCS
Switch - Unit Power
DF
Dead Front Switch
R10-R12
Relay – Electric Heat
TB1
Terminal Block - 24VAC+
F1A/F1B
Fuse - Compressor
R4H
Relay – Fan High Speed
TB2
Terminal Block – 24VAC Gnd
F2A/F3C
Fuse - Electric Heat
R4M
Relay– Fan Medium Speed
TB3
(A, B) Terminal Block – Main Power
FA/FB
Fuse– Control, Load
R4L
Relay– Fan Low Speed
TBE
Terminal Block - Electric Heat
FC/FD
Fuse– Control, Transformer
R32
Relay - Drain Pan Heater
TR1
Transformer - Motor Speed
HP
High Pressure Switch
R28
Relay - Outdoor Motor Air
TR3
Transformer - 208 / 230V-24V, 75VA
EH1-6
Heater - Electric
RV
Reversing Valve
TR4
Transformer - 460V–230V
EH10
Heater - Outdoor Drain Pan
RAT
Sensor - Room Air Temperature
TR5
Transformer - 208 / 230V-24V
FMI
Motor - Room Fan
DAT
Sensor - Discharge Air Temperature
V1
Valve - Heat EOC (Accessory)
CP1
Motor Compressor 2-Stage
OAT
Sensor - Outdoor Air Temperature
V2
Valve - Cool EOC (Accessory)
FMO
Motor Outdoor Air
ICT
Sensor - Indoor DX Coil Temperature
VH
Valve - Heat (Accessory)
NTWK
Network Connection
OCT
Sensor - Outdoor DX Coil Temperature
VC
Valve - Cool (Accessory)
Notes:
1. All electrical installation must be in accordance with national and local electrical codes and job wiring schematic.
. External wiring options - see IM for the different configured options, wiring to be minimum 18 gauge, 90°C.
3. EC motors are factory programmed for specified air flow. Contact Daikin Applied for replacement.
4. Cap extra wire. Switch wire 42A to red wire for 208V operation.
5. Switch wire 509 to terminal 2 for 208V operation.
6. Devices in legend may or may not be on unit.
2.