Daikin Maverick I Installation And Maintenance Manual page 79

Alarm List
Alarm Designation
MAIN LIMIT OPEN
Clogged Filter Warning-
CFS Controller
AC HI Pressure Switch 1
Trip-HP1 Controller
AC HI Pressure Switch 2
Trip-HP2 Controller
MANUAL RESET LIMIT
SWITCH OPEN
(Flame Rollout Switch)
Locked Rotor Circuit 2
Open Circuit 2
Missing Phase Circuit 2
Reverse Phase Circuit 2
Welded Contactor
Circuit 2
Low Voltage
Circuit 2
Duct High Limit Fault
Invalid Thermostat
selection
PRESSURE SWITCH 1
CLOSED
24
Origin
IFC IFC Energizes inducer and main blower
DDC
DDC Controller Displays warning.
The DDC Controller recognizes an open high
pressure switch after two seconds from its
DDC
occurrence. Since the high pressure switch is wired
in series with the compressor relay, the compressor
shuts down immediately until the pressure switch is
closed again AND the anti-short cycle delay is
DDC
expired. Three occurrences of a high pressure
switch within the same call will lock the circuit out.
The lockout is reset by removing the call.
IFC Runs blower for off delay, inducer for post-purge
IFC
time and locks out for one hour
Comfort Alert Code 4.
CA2
Circuit 2 shutdown.
Comfort Alert Code 5.
Circuit 2 shutdown and retry after Anti-Short Cycle
Delay (ASCD).
CA2
Note: This alarm is sent by the Comfort Alert Module
only after the fault has been sensed for a minimum
of 4 hours.
Comfort Alert Code 6
CA2
Circuit 2 shutdown
Comfort Alert Code 7
CA2
Circuit 2 shutdown.
Comfort Alert Code 8
Run outdoor and indoor fans continuously for circuit
CA2 2 and change mode of operation to Unoccupied
Auto. This procedure prevents the Space
Temperature from reaching extreme values.
CA2 Comfort Alert Code 9.
Future implementation
Indicates that a combination of thermostat inputs is
invalid.
Leave inducer de-energized until pressure switch
IFC
open
Description Status/Troubleshooting Information
• Burner Over Fired
• Low Air Flow
• Dirty Filter
• Poor Duct Design
• Blocked Duct, Supply and/or Return
• Incorrect Blower Speed Selection
• Dirty Filter
• Outdoor coil is dirty (heating mode)
• Outdoor fan is not running (cooling mode)
• Dirty indoor coil or filter (heating mode)
• Indoor blower is not running (heating mode)
• Liquid line restriction
• Excessive refrigerant charge
• Excessive Burner Pressure
• Improper Venting
• Incorrect Burner Orifices
• Sooted Heat Exchanger
• Bad Inducer Gasket
• Bad Heat Exchanger
• Low line voltage
• Excessive Refrigerant in compressor
• Seized bearings in compressor
• Condensing unit power disconnect is open
• Compressor circuit breaker or fuses are open
• Compressor contactor has failed open
• High pressure switch is open and requires
manual reset
• Broken supply wires or connector is not making
contact
• Unusually long compressor protector reset time
due to extreme ambient temperature
• Compressor windings are damaged
• Compressor fuse is open on one phase
• Broken wire or connector on one phase
• Compressor motor winding is damaged
• Utility supply has dropped one phase
• Compressor running backward due to supply
phase reversal
• Compressor contactor has failed closed
• Thermostat demand signal not connected to
module
• Control circuit transformer is overloaded
• Low line voltage to compressor
•
•
• Bad Pressure Switch
McQuay OM 1077