119
Table 104 — Alert and Alarm Codes
ALARM OR
ALERT
NUMBER
DESCRIPTION
ACTION TAKEN BY CONTROL
RESET METHOD
T048
CktA, Oil Return Not Reliable With Only One Comp
Available
Circuit shut down
Automatic
T049
CktB, Oil Return Not Reliable With Only One Comp
Available
Circuit shut down
Automatic
T051
Circuit A, Compressor 1 Failure
Compressor locked off (after 3
strikes)
Automatic then manual after 3
strikes
A051
Circuit A, Compressor 1 Stuck On Failure
Compressor locked off
Manual
T052
Circuit A, Compressor 2 Failure
Compressor locked off (after 3
strikes)
Automatic then manual after 3
strikes
A052
Circuit A, Compressor 2 Stuck On Failure
Compressor locked off
Manual
T053
Circuit A, Compressor 3 Failure
Compressor locked off (after 3
strikes)
Automatic then manual after 3
strikes
A053
Circuit A, Compressor 3 Stuck On Failure
Compressor locked off
Manual
T054
Circuit B, Compressor 1 Failure
Compressor locked off (after 3
strikes)
Automatic then manual after 3
strikes
A054
Circuit B, Compressor 1 Stuck On Failure
Compressor locked off
Manual
T055
Circuit B, Compressor 2 Failure
Compressor locked off (after 3
strikes)
Automatic then manual after 3
strikes
A055
Circuit B, Compressor 2 Stuck On Failure
Compressor locked off
Manual
T056
Circuit B, Compressor 3 Failure
Compressor locked off (after 3
strikes)
Automatic then manual after 3
strikes
A056
Circuit B, Compressor 3 Stuck On Failure
Compressor locked off
Manual
T057
Circuit A, High Pressure Switch Failure
Compressor locked off (after 3
strikes)
Automatic then manual after 3
strikes
A057
Circuit A, High Pressure Switch Failure
Compressor locked off
Manual
T058
Circuit B, High Pressure Switch Failure
Compressor locked off (after 3
strikes)
Automatic then manual after 3
strikes
A058
Circuit B, High Pressure Switch Failure
Compressor locked off
Manual
T068
Circuit A, Return Gas Thermistor Failure
MLV Disabled
Automatic
T072
Evap. Discharge Reset Sensor Failure
No supply air reset applied
Automatic
T073
Outside Air Temperature Thermistor Failure
No OAT functions allowed
Automatic
T074
Space Temperature Thermistor Failure
No SPT functions allowed
Automatic
T075
Return Air Thermistor Failure
No RAT functions allowed
Automatic
T076
Outside Air Relative Humidity Sensor Fail
No outside air RH functions allowed Automatic
T077
Space Relative Humidity Sensor Failure
No space RH functions allowed
Automatic
T078
Return Air Relative Humidity Sensor Fail
No return air RH functions allowed
Automatic
T082
Space Temperature Offset Sensor Failure
No space temperature offset applied Automatic
T090
Circ A Discharge Press Transducer Failure
Circuit shut down
Automatic
T091
Circ B Discharge Press Transducer Failure
Circuit shut down
Automatic
T092
Circ A Suction Press Transducer Failure
Circuit shut down
Automatic
T093
Circ B Suction Press Transducer Failure
Circuit shut down
Automatic
T110
Circuit A Loss of Charge
Circuit locked off
Manual
T111
Circuit B Loss of Charge
Circuit locked off
Manual
P120
Circuit A Low Saturated Suction Temp, Comp Shutdown Circuit staged down
Automatic
T120
Circuit A Low Saturated Suction Temperature Alert
Circuit shut down
Automatic
A120
Circuit A Low Saturated Suction Temperature Alarm
Circuit locked off
Manual
P121
Circuit B Low Saturated Suction Temp, Comp Shutdown Circuit staged down
Automatic
T121
Circuit B Low Saturated Suction Temperature Alert
Circuit shut down
Automatic
A121
Circuit B Low Saturated Suction Temperature Alarm
Circuit locked off
Manual
T122
Circuit A High Saturated Suction Temperature
Alert Only
Manual
T123
Circuit B High Saturated Suction Temperature
Alert Only
Manual
P126
Circuit A High Head Pressure, Comp Shutdown
Circuit stage down
Automatic
T126
Circuit A High Head Pressure Alert
Circuit shut down
Automatic
A126
Circuit A High Head Pressure Alarm
Circuit locked off
Manual
P127
Circuit B High Head Pressure, Comp Shutdown
Circuit stage down
Automatic
T127
Circuit B High Head Pressure Alert
Circuit shut down
Automatic
A127
Circuit B High Head Pressure Alarm
Circuit locked off
Manual
T128
Digital Scroll High Discharge Temperature Alert
Digital compressor A1 shutdown
Automatic
A128
Digital Scroll High Discharge Temperature Alarm
Digital compressor A1 locked off
Manual
A140
Reverse Rotation Detected
Stop unit
Manual
A150
Unit is in Emergency Stop
Unit shut down
Manual
A152
Unit Down due to Failure
No mechanical cooling available
Automatic
T153
Real Time Clock Hardware Failure
Unit shut down
Automatic
A154
Serial EEPROM Hardware Failure
Unit shut down
Automatic
T155
Serial EEPROM Storage Failure Error
Alert only
Automatic
A156
Critical Serial EEPROM Storage Fail Error
Unit shut down
Automatic
A157
A/D Hardware Failure
Unit shut down
Automatic
A169
Expansion Valve Control Board Comm Failure
Humidimizer control disabled
Automatic
Summary of Contents for Weathermaster 48P2030-100
Page 130: ...130 Fig 19 Typical Power Schematic Sizes 040 075 Shown ...
Page 131: ...131 Fig 20 Main Base Board Input Output Connections ...
Page 132: ...132 Fig 21 RXB EXB CEM SCB Input Output Connections ...
Page 133: ...133 Fig 22 Typical Gas Heat Unit Control Wiring 48P030 100 Units Shown ...
Page 134: ...134 Fig 23 Typical Electric Heat Wiring 50P030 100 Units Shown ...
Page 135: ...135 Fig 24 Typical Power Wiring 115 V ...
Page 136: ...136 Fig 25 Typical Gas Heat Section Size 030 050 Units Shown ...
Page 138: ...138 Fig 27 Component Arrangement Size 030 035 Units ...
Page 139: ...139 Fig 28 Component Arrangement Size 040 075 Units ...
Page 140: ...140 Fig 29 Component Arrangement Size 090 100 Units ...