AtL: Ambient Temperature Limit Operation
1. Error display:
ODU display: AtL ODU display only
2. Applicable models:
38VMA***HDS5-1 (208/230V-3Ph-60Hz)
38VMA***HDS6-1 (460V-3Ph-60Hz)
3. Error definition:
ODU operating outside the allowable limits (allowable limits: cooling 5~125FDB, heating -4~64FWB)
4. Possible causes:
• The ODU ambient temperature exceeds the allowable operational limit
• Improper connection at the sensor terminal
• Damaged ambient temperature sensor
• Damaged main board
Caution: Turn off the power switch before connecting or disconnecting the connector. Failure to do so could damage
the board.
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