Zero Zone HYBRID ORMC82, Maintenance Manual

Page: 34 / 69

30 • Operation
OPERATION
Start-Up
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Power on the case by turning on the store circuit breaker or optional case disconnect.
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There will be a slight delay before the compressor starts.
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Set the time clock on the controller to the correct time of day. See below for setting controller time.
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The case fans may cycle for as long as 30 minutes (unless the case goes into defrost).
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The condensing unit will run continuously for as long as 12 hours or until the case
reaches temperature or goes into defrost.
Carel IR33+ Controller Standard Features
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Located at top right of each case
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24-Hour Time Clock
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Battery Backup
Instructions for Setting the Time - Carel IR33+ Controller
CONTROLLER TIME OF DAY MUST BE SET AT INSTALL
1. Press and hold the [PRG] button down for 5 seconds. The display will show a flashing “ 0 ”. Once “ 0 ” is flashing, press [UP] arrow until you
see “ 22 ”. Press [SET] button to enter this access number to get to these parameters.
2. Press the [DOWN] arrow once. Time Clock “ tc ” will be shown on the display.
3. Press the [SET] button once. The year “ yxx ” will be shown on the display where “ xx ” is the last 2 digits of the year.
4. Press the [DOWN] arrow once. This will cycle the control to the minutes setting. “ nxx ” will be shown on the display where “ xx ” is a number
between 00 and 59.
5. Press the [SET] button. The display will show a number between 00 and 59. Use the [UP] and [DOWN] arrows to change the number to
the correct minutes setting. (Example: If it is 7:42 aM, change the number to 42.)
6. Press the [SET] button again to back out of the menu.
7. Press the [DOWN]
arrow once. This will cycle the control to the hours setting. “ hxx ” will be shown on the display where “ xx ” is a number
between 00 and 23.
8. Press the [SET] button. The display will show a number between 00 and 23. Use the [UP] and [DOWN] arrows to change the number to
the correct hour setting. The clock reads in a variation of military time. (Example: If it is 7:42 aM, change the number to 7 and if it is
7:42 PM, change the number to 19.)
9. Press the [SET] button again to back out of the menu.
10.
When finished, you MUST press and hold the [PRG] button for 10 seconds for the changes to take effect. The screen will switch to [RTC];
keep holding the [PRG] button until the screen goes back to the case temperature.