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ALARM OR
ALERT NUMBER
A200
Linkage Timeout Error - Comm Failure
T210
Building Pressure Transducer Failure
T211
Static Pressure Transducer Failure
T220
Indoor Air Quality Sensor Failure
T221
Outdoor Air Quality Sensor Failure
T229
Economizer Min Pos Override Input Failure
T245
Outside Air Cfm Sensor Failure
T246
Supply Air Cfm Sensor Failure
T247
Return Air Cfm Sensor Failure
T300
Space Temperature Below Limit
T301
Space Temperature Above Limit
T302
Supply Temperature Below Limit
T303
Supply Temperature Above Limit
T304
Return Temperature Below Limit
T305
Return Temperature Above Limit
T308
Return Air Relative Humidity Below Limit
T309
Return Air Relative Humidity Above Limit
T310
Supply Duct Static Pressure Below Limit
T311
Supply Duct Static Pressure Above Limit
T312
Building Static Pressure Below Limit
T313
Building Static Pressure Above Limit
T314
IAQ Above Limit
T316
OAT Below Limit
T317
OAT Above Limit
T335
Excess Outdoor Air
A400
Hydronic Freeze Stat Trip
A404
Fire Shut Down Emergency Mode (fire-smoke)
A405
Evacuation Emergency Mode
A406
Pressurization Emergency Mode
A407
Smoke Purge Emergency Mode
T408
Dirty Air Filter
T409
Supply Fan Status Failure
A409
Supply Fan Status Failure
A410
Supply Fan VFD Fault
A411
Exhaust Fan VFD Fault
T414
Damper Not Modulating
T421
Thermostat Y2 Input On without Y1 On
T422
Thermostat W2 Input On without W1 On
T423
Thermostat Y and W Inputs On
T424
Thermostat G Input Off On a Cooling Call
T430
Plenum Pressure Safety Switch Trip
A430
Plenum Pressure Safety Switch Trip
T431
Motor Starter Protector Trip
A432
Motor Starter Protector Lockout
T500
Current Sensor Board Failure - A1
T501
Current Sensor Board Failure - A2
T502
Current Sensor Board Failure - B1
T503
Current Sensor Board Failure - B2
T504
Current Sensor Board Failure - A3
T505
Current Sensor Board Failure - B3
T610
Economizer Actuator Out of Calibration
T611
Economizer Actuator Comm Failure
T612
Economizer Actuator Control Range Increased
T613
Econ Actuator Overload, Setpt Not Reached
T614
Econ Actuator Hunting Excessively
T615
Econ 1 (Outside) Not Economizing When It Should
T616
Econ 1 (Outside) Economizing When It Should Not
T617
Econ 1 (Outside) Damper Stuck Or Jammed
A620
Economizer 2 Actuator Out of Calibration
A621
Economizer 2 Actuator Comm Failure
T622
Economizer 2 Actuator Control Range Increased
T623
Economizer 2 Actuator Overload, Setpoint Not Reached
A623
Econ2 Overload, Setpt Not Reached
T624
Economizer 2 Actuator Excessive Utilization
A624
Econ2 Actuator Hunting Excessively
T625
Econ 2 (Return) Not Economizing When It Should
T626
Econ 2 (Return) Economizing When It Should Not
T627
Econ 2 (Return) Damper Stuck Or Jammed
T630
Humidifier Actuator Out of Calibration
T631
Humidifier Actuator Communication Failure
T632
Humidifier Actuator Control Range Increased
T633
Humidifier Act Overload, Setpt Not Reached
T634
Humidifier Actuator Hunting Excessively
A640
Heating Coil Actuator Out of Calibration
A641
Heating Coil Actuator Comm Fail
T642
Heat Coil Actuator Control Range Increased
Table 106 — Alert and Alarm Codes (cont)
DESCRIPTION
ACTION TAKEN BY CONTROL
Resorts to local unit setpoints
No building pressure control function
No static pressure control
No IAQ control
OAQ defaults to 400 ppm
Operate without override
No OA CFM control
Unit shut down
Unit shut down
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Unit in emergency mode
Unit shut down
Run evacuation mode
Run pressurization mode
Run smoke purge mode
Alert only
Alert only
Unit shut down
Unit shut down
Unit shut down
Alert only
Run on Y2
Run on W2
No cooling or heating
Turn fan on and cool
Alert only
Unit shut down
Alert only
No building pressure control
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
No economizer functions
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
Alarm only
No IGV functions
Alert only
Alert only
Alarm only
Alert only
Alert only
Alert only
Alert only
Alert only
Alert only
No humidifier functions
Alert only
Alert only
Alert only
Alarm only
No heating coil functions
Alert only
124
RESET METHOD
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Manual
Manual
Manual
Manual
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Manual
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
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Troubleshooting
