1. Hardware
1.1. TRIAC verification for Peri heater
1.1.1. ESD
1.1.2. Temperature verification
1.1.3. Accelerated on / off cycles
1.1.4. Voltage ups and downs (260V and 70V)
1.1.5. Effect of zero cross and zero cross failure
1.1.6. Load shorted and open
1.2. Immunity
1.2.1. ESD across all harnesses and inputs
1.3. Battery Life Test
1.4. Remote output and its effects on the 14V rail
1.5. Temperature Tracking
1.6. Micro Crystal short
1.6.1. PINS Open
1.6.2. PIN2PIN Short
1.7. Watchdog
1.7.1. Buffer latched to TRI-State
1.8. T9-series RLY
1.8.1. Stuck contacts
1.8.2. Ambient Temperature stress with all vent blocks
1.8.3. Electrical disturbance on DC Rails with continuous ON/OFF Cycles
1.9. RS485-Interboard com
1.9.1. O/P lines short together
1.10. SMPS
1.10.1. DC-Volt FBK Failure
1.10.1.1. opamp/Fbk resistor Failures
1.10.1.2. Error in Fbk ratio / Wrong components
1.10.2. V-transients addition on 3V3 Rail with ISO Transformer
1.10.3. Short I/P supply, as per UL and Switch ON Unit
1.10.4. UVLO Case on +12V rails
1.10.4.1. OP short
1.10.4.2. Thermal stress
1.11. VSC-No HW-Frequency
1.12. Product-ID Failure ( Issue in J15)
1.12.1. Harness Issue
1.12.2. PIN2PIN Short
1.12.3. ESD Failure / Zap
1.12.4. OP Latch HI/LO Permanently during Running/POR condition
1.13. DISTRIBUTION BOARD
1.13.1. snubber circuit Failure
1.13.1.1. R&C Short/Stressed - Grouped/Individual
1.13.1.2. R&C Open/Stressed - Grouped/Individual
1.13.1.3. MOV Failure
1.13.2. ESD Zap on Comm Lines
1.13.3. AC L1 & AC L2 Interchanged
2. -30C Cabinet
2.1. Firmware
2.1.1. Control Interactions
2.1.1.1. Lost communication
2.1.1.1.1. On POR with Model
2.1.1.1.2. On POR Invalid Model
2.1.1.1.3. During normal middle run mode
2.1.1.2. Control probe failure response
2.1.1.2.1. 3001, 3002, 3003
2.1.1.3. Defrost probe failure
2.1.1.3.1. 3023, 3024, 3025, 3026
2.1.1.4. ambient probe failure
2.1.1.4.1. 3012
2.1.1.5. double failure - power failure with all other failures
2.1.1.5.1. 3004, 3005, 3010, 3011, 3013, 3014, 3016, 3017
2.1.1.6. PD algorithm
2.1.1.6.1. Entry & Exit Scenarios
2.1.1.6.2. Staging in PD mode
2.1.1.6.3. Power Failure and recovery during staging
2.1.1.6.4. Colder Set point change
2.1.1.6.5. Warmer Set point change
2.1.1.6.6. Ambinet temp changes
2.1.1.6.7. All probe failures during PD mode
2.1.1.7. SS Mode
2.1.1.7.1. Entry & Exit Scenarios
2.1.1.7.2. Tuning of last known RPM
2.1.1.7.3. Staging in SS Mode
2.1.1.7.4. Power failure and recovery during staging
2.1.1.7.5. Colder Set point change
2.1.1.7.6. Warmer Set point change
2.1.1.7.7. Ambient temp change
2.1.1.7.8. All probe failures during SS Mode
2.1.1.7.9. Step up behaviour
2.1.1.7.10. Step down behaviour
2.1.1.8. control probe temp variations during power failure
2.1.1.9. Exception handling to PD and cycle
2.1.1.10. Defrost cycle
2.1.1.10.1. Interval Elapse
2.1.1.10.2. Opportune
2.1.1.10.3. Entry and exit
2.1.1.10.4. Power failure and recovery
2.1.1.11. 48 timer reliability response
2.1.1.11.1. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in ON
2.1.1.11.2. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in OFF
2.1.1.11.3. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in ON condition, Power failure and recovery before start of next cycle
2.1.1.11.4. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in OFF condition, Power failure and recovery before start of next cycle
2.1.1.11.5. Power failure and recovery during 48 hours compressor max speed
2.1.1.12. Shortcycle effects in all the on to off exceptions such as
2.1.1.12.1. PF
2.1.1.12.2. Off to on immediate demands like Door opening
2.1.1.13. BOT interaction
2.1.1.13.1. In PD
2.1.1.13.2. In Cycle
2.1.1.14. Quality mode from soak and non soak and communication failure and bot
2.1.1.15. Evap fan failure effects and other loads to control alg
2.1.1.16. Evap fan control
2.1.1.16.1. Door Open upon POR
2.1.1.16.2. Defrost probe temp > 0 on POR
2.1.1.16.3. Door operation
2.1.1.16.4. Power Failure and Recovery
2.1.1.17. Excessive or accelerated warmups such as Door openings
2.1.1.18. Compressor off
2.1.1.18.1. Ambient interaction to condenser speed
2.1.1.18.2. shortcycle delay
2.1.1.19. Compressor on
2.1.1.19.1. Minimum ontime
2.1.1.20. Param table verification
2.1.1.20.1. 1
2.1.1.21. 8hrs battery test
2.1.1.21.1. 145
2.1.1.22. Compressor got stuck or failure
2.1.1.22.1. 146
2.1.1.23. recovery from failures
2.1.1.23.1. power recovery
2.1.1.23.2. probe failures recovery
2.1.1.23.3. battery replacement
2.1.1.24. Resetting either of the board (Relay or Main) during it's operation
2.1.1.24.1. 148
2.1.1.25. communication packet drop issues
2.1.1.25.1. 149
2.1.1.26. Display Upper Bottle failure
2.1.1.26.1. 3008, 3009, 3010, 3011
2.1.2. Environmental Interactions
2.1.2.1. Power failure
2.1.2.1.1. force defrost and power failure occurance
2.1.2.1.2. Power failure during Short cycle times and recovery after short cycle time elapses
2.1.2.1.3. Other alarms during power failure
2.1.2.2. Ambient changes
2.1.2.2.1. 11, 12, 13, 14, 26, 27, 28, 29
2.1.2.3. Filter and ambient location
2.1.2.4. Ambient changes in response to condenser fan speeds
2.1.2.4.1. **Test cases already covered as part of Compressor OFF
2.1.2.5. temp and unit performance behavior when upper bottle- liquid contents are replaced
2.1.3. User Interactions
2.1.3.1. Setpoint Changes
2.1.3.1.1. Colder set point change
2.1.3.1.2. Warmer set point change
2.1.3.2. Warm Alarm Test
2.1.3.2.1. Warm alarm along with other alarms
2.1.3.3. Cold Alarm Test
2.1.3.3.1. Cold alarm along with other alarms
2.1.3.4. Parameter accesses and ranges at different points
2.1.3.4.1. Automatic adjustment of cold and warm alarm values if required as per the SP change
2.1.3.5. Service mode and program mode
2.1.3.5.1. 1002, 1012
2.1.3.6. Quality mode test
2.1.3.6.1. Quality mode elgibility criteria
2.1.3.6.2. Quality Mode tests
2.1.3.6.3. Quality mode cancellation scenarios
2.1.3.6.4. quality mode exit behaviour
2.1.3.6.5. alarm monitoring
2.1.3.6.6. Power failure and Recovery
2.1.3.6.7. Probe failures
2.1.3.7. BOT test
2.1.3.8. Defrost cycle test
2.1.3.9. Key position and alarm Interactions
2.1.3.9.1. silence button
2.1.3.9.2. Service mode/prog mode entry when alarms are enabled
2.1.3.10. Door open and door alarm
2.1.3.10.1. Effects on control algorithm /loads
2.1.3.11. system ID changes
2.1.3.12. Restore factory default and its interactions
2.1.3.13. Unintended button presses
2.1.3.14. User cleaning (Mereck)
2.1.3.15. Active alarms versus hasbeens
2.1.3.16. Remote alarm contact
2.1.3.17. Low Battery and its effect in all modes of operation
2.1.3.18. Stuck Key and its effects
2.1.3.19. BOT and Quality mode during power failure
2.1.3.19.1. 138, 139
2.1.3.20. Force Defrost
2.1.3.20.1. When key is Power ON/ Alarm Position
2.1.3.20.2. Immediately after Normal Defrost cycle
2.1.3.20.3. Force Defrost during Normal Defrost Cycle
2.1.3.20.4. Force Defrost during Quality Mode
2.1.3.20.5. Force Defrost during BOT
2.1.3.21. temperature division on 10bar LED
2.1.3.22. display temp resolution of 0.1C
2.1.3.23. Invalid model - UI behaviour
2.1.3.23.1. 136, 137
2.1.3.24. Peri heater control
2.1.3.24.1. 90
2.1.3.25. Display update by changing the Off set value
2.1.3.25.1. 133, 134
2.1.3.26. Storing into Non volatile memory after Changing Param values (Setpoint, Service Params etc)
2.1.3.26.1. 1049, 1050, 1051, 1052, 1053,1054, 1055
3. -20C Cabinet
3.1. Firmware
3.1.1. Control Interactions
3.1.1.1. Lost communication
3.1.1.1.1. On POR with Model
3.1.1.1.2. On POR Invalid Model
3.1.1.1.3. During normal middle run mode
3.1.1.2. Control probe failure response
3.1.1.3. ambient probe failure
3.1.1.4. double failure - power failure with all other failures
3.1.1.5. PD algorithm
3.1.1.5.1. Entry & Exit Scenarios
3.1.1.5.2. Staging in PD mode
3.1.1.5.3. Power Failure and recovery during staging
3.1.1.5.4. Colder set point change
3.1.1.5.5. Warmer Set point change
3.1.1.5.6. Ambinet temp changes
3.1.1.5.7. All probe failures during PD mode
3.1.1.6. SS Mode
3.1.1.6.1. Entry & Exit Scenarios
3.1.1.6.2. Tuning of last known RPM
3.1.1.6.3. Staging in SS Mode
3.1.1.6.4. Power failure and recovery during staging
3.1.1.6.5. Colder Set point change
3.1.1.6.6. Warmer Set point change
3.1.1.6.7. Ambient temp change
3.1.1.6.8. All probe failures during SS Mode
3.1.1.6.9. Step up behaviour
3.1.1.6.10. Step down behaviour
3.1.1.7. control probe temp variations during power failure
3.1.1.8. Exception handling to PD and cycle
3.1.1.9. 48 timer reliability response
3.1.1.9.1. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in ON
3.1.1.9.2. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in OFF
3.1.1.9.3. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in ON condition, Power failure and recovery before start of next cycle
3.1.1.9.4. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in OFF condition, Power failure and recovery before start of next cycle
3.1.1.9.5. Power failure and recovery during 48 hours compressor max speed
3.1.1.10. Shortcycle effects in all the on to off exceptions such as
3.1.1.10.1. PF
3.1.1.11. BOT interaction
3.1.1.11.1. In PD
3.1.1.11.2. In Cycle
3.1.1.12. Quality mode from soak and non soak and communication failure and bot
3.1.1.13. Excessive or accelerated warmups such as Door openings
3.1.1.14. Compressor off
3.1.1.14.1. Ambient interaction to condenser speed
3.1.1.14.2. shortcycle delay
3.1.1.15. Compressor on
3.1.1.15.1. Minimum ontime
3.1.1.16. Param table verification
3.1.1.17. 8hrs battery test
3.1.1.18. Compressor got stuck or failure
3.1.1.19. recovery from failures
3.1.1.19.1. power recovery
3.1.1.19.2. probe failures recovery
3.1.1.19.3. battery replacement
3.1.1.20. Resetting either of the board (Relay or Main) during it's operation
3.1.1.21. communication packet drop issues
3.1.2. Environmental Interactions
3.1.2.1. Power failure
3.1.2.1.1. Power failure during Short cycle times and recovery after short cycle time elapses
3.1.2.1.2. Other alarms during power failure
3.1.2.2. Ambient changes
3.1.2.3. Filter and ambient location
3.1.2.4. Ambient changes in response to condenser fan speeds
3.1.3. User Interactions
3.1.3.1. Setpoint Changes
3.1.3.1.1. Colder set point change
3.1.3.1.2. Warmer set point change
3.1.3.2. Warm Alarm Test
3.1.3.2.1. Warm alarm along with other alarms
3.1.3.3. Cold Alarm Test
3.1.3.3.1. Cold alarm along with other alarms
3.1.3.4. Parameter accesses and ranges at different points
3.1.3.4.1. Automatic adjustment of cold and warm alarm values if required as per the SP change
3.1.3.5. Service mode and program mode
3.1.3.6. Quality mode test
3.1.3.6.1. Quality mode elgibility criteria
3.1.3.6.2. Quality Mode tests
3.1.3.6.3. Quality mode cancellation scenarios
3.1.3.6.4. quality mode exit behaviour
3.1.3.6.5. alarm monitoring
3.1.3.6.6. Power failure and recovery
3.1.3.6.7. Probe failure during Quality Mode
3.1.3.7. BOT test
3.1.3.8. Key position and alarm Interactions
3.1.3.8.1. silence button
3.1.3.8.2. Service mode/prog mode entry when alarms are enabled
3.1.3.9. Door open and door alarm
3.1.3.9.1. Effects on control algorithm /loads
3.1.3.10. system ID changes
3.1.3.11. Restore factory default and its interactions
3.1.3.12. Unintended button presses
3.1.3.13. User cleaning (Mereck)
3.1.3.14. Active alarms versus hasbeens
3.1.3.15. Remote alarm contact
3.1.3.16. Low Battery and its effect in all modes of operation
3.1.3.17. Stuck Key and its effects
3.1.3.18. BOT and Quality mode during power failure
3.1.3.19. temperature division on 10bar LED
3.1.3.20. display temp resolution of 0.1C
3.1.3.21. Invalid model - UI behaviour
3.1.3.22. Peri heater control
3.1.3.23. Display update by changing the Control Probe temp value
3.1.3.24. Storing into Non volatile memory after Changing Param values (Setpoint, Service Params etc)
4. +4C/+5C Cabinet
4.1. Firmware
4.1.1. Control Interactions
4.1.1.1. Lost communication
4.1.1.1.1. On POR with Model
4.1.1.1.2. On POR Invalid Model
4.1.1.1.3. During normal middle run mode
4.1.1.2. Control probe failure response
4.1.1.3. Defrost probe failure
4.1.1.4. ambient probe failure
4.1.1.5. double failure - power failure with all other failures
4.1.1.6. PD algorithm
4.1.1.6.1. Entry & Exit Scenarios
4.1.1.6.2. Staging in PD Mode
4.1.1.6.3. Power failure and recovery during staging
4.1.1.6.4. Colder Set point change
4.1.1.6.5. Warmer Set point change
4.1.1.6.6. Ambient temp change
4.1.1.6.7. All probe failures during PD Mode
4.1.1.7. SS Mode
4.1.1.7.1. Entry & Exit Scenarios
4.1.1.7.2. Tuning of last known RPM
4.1.1.7.3. Staging in SS Mode
4.1.1.7.4. Power failure and recovery during staging
4.1.1.7.5. Colder Set point change
4.1.1.7.6. Warmer Set point change
4.1.1.7.7. Ambient temp change
4.1.1.7.8. All probe failures during SS Mode
4.1.1.7.9. Step up behaviour
4.1.1.7.10. Step down behaviour
4.1.1.8. control probe temp variations during power failure
4.1.1.9. Exception handling to PD and cycle
4.1.1.10. Defrost cycle
4.1.1.10.1. Interval Elapse
4.1.1.10.2. Opportune
4.1.1.10.3. Entry and exit
4.1.1.11. 48 timer reliability response
4.1.1.11.1. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in ON
4.1.1.11.2. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in OFF
4.1.1.11.3. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in ON condition, Power failure and recovery before start of next cycle
4.1.1.11.4. To Verify 48 hours Compressor Max speed behaviour - 48 hours timer expires when compressor is in OFF condition, Power failure and recovery before start of next cycle
4.1.1.11.5. Power failure and recovery during 48 hours compressor max speed
4.1.1.12. BOT interaction
4.1.1.12.1. In PD
4.1.1.12.2. In Cycle
4.1.1.13. Quality mode from soak and non soak and communication failure and bot
4.1.1.14. Evap fan failure effects and other loads to control alg
4.1.1.15. Evap fan control
4.1.1.16. Excessive or accelerated warmups such as Door openings
4.1.1.17. Entering and exiting defrost
4.1.1.18. Compressor off
4.1.1.18.1. Ambient interaction to condenser speed
4.1.1.18.2. shortcycle delay
4.1.1.19. Compressor on
4.1.1.19.1. Minimum ontime
4.1.1.20. Param table verification
4.1.1.21. 8hrs battery test
4.1.1.22. Compressor got stuck or failure
4.1.1.23. recovery from failures
4.1.1.23.1. power recovery
4.1.1.23.2. probe failures recovery
4.1.1.23.3. battery replacement
4.1.1.24. Resetting either of the board (Relay or Main) during it's operation
4.1.1.25. communication packet drop issues
4.1.1.26. Display Lower Bottle failure
4.1.1.27. Display Upper Bottle failure
4.1.2. Shortcycle effects in all the on to off exceptions such as
4.1.2.1. PF
4.1.2.2. Off to on immediate demands like Door opening
4.1.3. Environmental Interactions
4.1.3.1. Power failure
4.1.3.1.1. force defrost and power failure occurance
4.1.3.1.2. Power failure during Short cycle times and recovery after short cycle time elapses
4.1.3.1.3. Other alarms during power failure
4.1.3.2. Ambient changes
4.1.3.3. Filter and ambient location
4.1.3.4. Ambient changes in response to condenser fan speeds
4.1.3.5. temp and unit performance behavior when upper bottle- liquid contents are replaced
4.1.4. User Interactions
4.1.4.1. Setpoint Changes
4.1.4.1.1. Colder set point change
4.1.4.1.2. Warmer set point change
4.1.4.2. Warm Alarm Test
4.1.4.2.1. Warm alarm along with other alarms
4.1.4.3. Cold Alarm Test
4.1.4.3.1. Cold alarm along with other alarms
4.1.4.4. Parameter accesses and ranges at different points
4.1.4.4.1. Automatic adjustment of cold and warm alarm values if required as per the SP change
4.1.4.5. Service mode and program mode
4.1.4.6. Quality mode test
4.1.4.6.1. Quality mode elgibility criteria
4.1.4.6.2. Quality Mode tests
4.1.4.6.3. Quality mode cancellation scenarios
4.1.4.6.4. quality mode exit behaviour
4.1.4.6.5. alarm monitoring
4.1.4.6.6. Power failure and recovery
4.1.4.6.7. Probe failure during Quality Mode
4.1.4.7. BOT test
4.1.4.8. Defrost cycle test
4.1.4.9. Key position and alarm Interactions
4.1.4.9.1. silence button
4.1.4.9.2. Service mode/prog mode entry when alarms are enabled
4.1.4.10. Door open and door alarm
4.1.4.10.1. Effects on control algorithm /loads
4.1.4.11. system ID changes
4.1.4.12. Restore factory default and its interactions
4.1.4.13. Unintended button presses
4.1.4.14. User cleaning (Mereck)
4.1.4.15. Active alarms versus hasbeens
4.1.4.16. Remote alarm contact
4.1.4.17. Low Battery and its effect in all modes of operation
4.1.4.18. Stuck Key and its effects
4.1.4.19. BOT and Quality mode during power failure
4.1.4.20. Force Defrost
4.1.4.20.1. When key is Power ON/ Alarm Position
4.1.4.20.2. Immediately after Normal Defrost cycle
4.1.4.20.3. Force Defrost during Normal Defrost Cycle
4.1.4.20.4. Force Defrost during Quality Mode
4.1.4.20.5. Force Defrost during BOT
4.1.4.21. temperature division on 10bar LED
4.1.4.22. display temp resolution of 0.1C
4.1.4.23. Invalid model - UI behaviour
4.1.4.24. Peri heater control
4.1.4.25. Display update by changing the Off set value
4.1.4.26. Light Switch
4.1.4.26.1. ON
4.1.4.26.2. OFF
4.1.4.27. Storing into Non volatile memory after Changing Param values (Setpoint, Service Params etc)