Trane FARRAR ULC Series Installation, Operation And Maintenance Manual page 22

Ultra low storage chamber
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This is intended to remind the operator that the door switch is being ignored. No alarms or lights related to door openings will
be activated.
Note: Normally, opening either door will cause the refrigeration system to power off and remain off as long as the door is open.
This is the recommended mode of operation. It is recommended that IGNORE DOOR SWITCH mode only be used if a door
switch fails. Once the door switch is repaired, IGNORE DOOR SWITCH mode should be deactivated.
Calibration and Maintenance
Complete the following steps to set calibration and maintenance intervals:
1.
Touch the CALIBRATION INTERVAL display to enter the time interval between calibration notification messages.
Note: The available range is 1 to 240 months. The Factory Default is 12 months.
The SERVICE Icon
Touch the right arrow icon next to RESET CALIBRATION TIMER to restart the countdown from the set calibration
2.
interval. A message will display to confirm that the timer was reset.
Touch the MAINTENANCE INTERVAL display to enter the time interval between preventative maintenance
3.
notification messages.
Note: The available range is 1 to 240 months. The Factory Default is 12 months.
The SERVICE icon
Touch the right arrow icon next to RESET MAINTENANCE TIMER to restart the countdown from the set maintenance
4.
interval. A message will display to confirm that the timer was reset.
Figure 14: Calibration and Maintenance Screen
will display 30 days before the end of the interval to allow for scheduling.
will display 30 days before the end of the interval to allow for scheduling.
ULC SERIES INSTRUCTION MANUAL
22

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