Daikin Enfinity Installation And Maintenance Manual page 44

Table 22: Compressor low suction temp
Description
Compressor Low Suction Temp
• Check water flow (heating operation)
• Check airflow (cooling operation)
• Entering water and air temperatures should be within the operating limits.
Table 23: Freeze fault detect
Description
Freeze Fault Detect
• Low entering water temperature (below 35°F standard range or 13.5°F extended range)
Table 24: Condensate overflow
Description
Condensate Overflow
• Poor condensate drain
• Check the resistance to ground on condensate wire. This should be open if there is no water in the pan.
Table 25: Serial EEPROM corrupted
Description
Serial EEPROM Corrupted
• Replace main board
Table 26: Waterside economizer low temp cutout (WSE control & call for cooling)
Description
Waterside Economizer Low Temp
Cutout (WSE Control & Call for
Cooling)
• Water temperature is below 35°F.
Table 27: Service test mode enabled
Description
Service Test Mode Enabled
• Jumper JP1 is shorted for test mode operation.
Table 28: Unoccupied mode
Description
Unoccupied Mode
• Terminal U on main control board is connected to common from external source.
Table 29: Occupied, bypass, standby, or tenant override modes
Description
Occupied, Bypass, Standby, or Ten-
ant Override Modes
• Unit is operating normal. It may currently have a control signal or ready to operate when a control signal is active.
IM 1059-12 LARGE VERTICAL WSHP
Type Yellow
Fault Flash
Type Yellow
Fault Flash
Type Yellow
Fault ON
Type Yellow
Fault ON
Type Yellow
Mode Flash
Type Yellow
Mode Flash
Type Yellow
Mode ON
Type Yellow
Mode OFF
44
t
roubleshooting
Green Red
OFF OFF
Green Red
OFF Flash
Green Red
OFF OFF
Green Red
ON ON
Green Red
ON Flash
Green Red
Flash Flash
Green Red
ON OFF
Green Red
ON OFF
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