Table of Contents
Advertisement
MicroTech III unit controller and I/O expansion module status LED's and
fault outputs
Table 14: MicroTech III controller status LED's & fault outputs
I/O Expansion Communication Fail
Low Voltage Brownout
Compressor #1 High Pressure (HP1)
Compressor #1 Low Pressure (LP1)
Compressor #1 Suction Temp Sensor Fail
Freeze Fault Detect (Freeze Fault Protection Only)
Compressor #1 Low Suction Temp (LT1)
Room Temp Sensor Fail (with Room Sensor Control Only)
Leaving Water Temp Sensor Fail (Freeze Fault Protection Only)
Condensate Overflow (Cooling & Dehumidification Modes Only)
Serial EEPROM Corrupted
Service Test Mode Enabled
Occupied, Bypass, Standby, or Tenant Override Modes
Note: * The MicroTech III baseboard LED's mode / faults are listed in order of priority.
Table 15: I/O expansion module status LED's & fault outputs
Baseboard Communication Fail
Compressor #2 High Pressure (HP2)
Compressor #2 Low Pressure (LP2)
Compressor #2 Low Suction Temp (LT2) Sensor Fail
Compressor #2 Low Suction Temp (LT2)
Entering Water Temp Sensor Fail (with Boilerless Electric Heat and Waterside Economizer)
Low Entering Water Temperature (No Display with Boilerless Electric Heat)
Note: Mode / Faults are listed in order of priority.
IM 1059-12 LARGE VERTICAL WSHP
Description
Invalid Configuration
Emergency Shutdown
Unoccupied Mode
Description
Fan is OFF
Fan is ON
Type*
Yellow
Fault
ON
Fault
Flash
Fault
OFF
Mode
OFF
Fault
OFF
Fault
OFF
Fault
Flash
Fault
Flash
Fault
Flash
Fault
Flash
Fault
Flash
Fault
ON
Fault
ON
Mode
Flash
Mode
ON
Mode
OFF
Type
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Mode
Mode
42
t
roubleshooting
Green
Flash
Flash
Flash
Flash
Flash
OFF
Flash
OFF
Flash
OFF
Flash
OFF
Flash
Flash
OFF
ON
Flash
Flash
ON
ON
Yellow
Green
OFF
Flash
OFF
OFF
OFF
OFF
Flash
Flash
Flash
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
Flash
www.DaikinApplied.com
Red
OFF
OFF
OFF
ON
ON
OFF
ON
ON
OFF
ON
OFF
OFF
Red
Flash
Flash
ON
ON
OFF
Flash
Flash
OFF
OFF
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
