Panasonic CZ256ESMC2 Operating Guide
89
12 Supplementary Information-2
Errors occurred while operating during a thunder storm or because of electromagnetic interference.
Power the Intelligent Controller off and then on again. (Refer to “Powering the system off” stated on the
previous page)
As a rule, the Intelligent Controller should be powered off only in cases such as the above.
Correct management of air conditioning is not possible when the Intelligent Controller is powered off.
previous page)
As a rule, the Intelligent Controller should be powered off only in cases such as the above.
Correct management of air conditioning is not possible when the Intelligent Controller is powered off.
About distribution ratios and energy usage
The formulas used by the Intelligent Controller to calculate air conditioning distribution ratios and energy
usage are only approximations. They normally do not yield the same amounts that appear on bills from
electric and gas utilities.
Depending on operating conditions, there may be a margin of error between distribution ratios and
actual air conditioning amounts.
There may also be a small margin of error between the following, due to the rounding algorithms used in
distribution ratio calculations.
• “Distribution ratios of tenants in a group” and “100.00%”
• “Total of distribution ratios” and “Overall tenant distribution ratio”
• “Total of usage by each tenant” and “Total usage indicated by pulse meters”
• “Total of usage during regular hour, out of hours, and special days time zones” and “Total of all hours
usage are only approximations. They normally do not yield the same amounts that appear on bills from
electric and gas utilities.
Depending on operating conditions, there may be a margin of error between distribution ratios and
actual air conditioning amounts.
There may also be a small margin of error between the following, due to the rounding algorithms used in
distribution ratio calculations.
• “Distribution ratios of tenants in a group” and “100.00%”
• “Total of distribution ratios” and “Overall tenant distribution ratio”
• “Total of usage by each tenant” and “Total usage indicated by pulse meters”
• “Total of usage during regular hour, out of hours, and special days time zones” and “Total of all hours
time zones”
The Intelligent Controller does not measure energy use directly. It calculates energy distribution ratio
based on the inferred load ratio of each indoor unit. The results of the calculations should be regarded
as approximations.
based on the inferred load ratio of each indoor unit. The results of the calculations should be regarded
as approximations.
About operating time totals
Air conditioning distributions and air conditioner operating times are calculated only for periods in which
the Intelligent Controller is powered on and in which there are no communications errors between the
Intelligent Controller and the air conditioners.
Therefore, no totals are accumulated for times when the Intelligent Controller is powered off or in which
communications errors occur.
You should be aware that errors in distribution ratios will become larger if conditions like the above
continue for a longer period of time.
the Intelligent Controller is powered on and in which there are no communications errors between the
Intelligent Controller and the air conditioners.
Therefore, no totals are accumulated for times when the Intelligent Controller is powered off or in which
communications errors occur.
You should be aware that errors in distribution ratios will become larger if conditions like the above
continue for a longer period of time.
Setting the current date and time
The current date and time should be set on a regular basis, since the system clock can gain or lose up
to about two minutes per month.
to about two minutes per month.
Touch panel operations are not possible at the following times.
• While the system is booting
• During connection checks
• Under cut-off processing
• During PC Card access (backup, restore)
• During connection checks
• Under cut-off processing
• During PC Card access (backup, restore)
About passwords
Passwords should be recorded and saved in a safe place. They should never be disclosed to third
parties.
If you forget your password, contact your dealer or service provider.
parties.
If you forget your password, contact your dealer or service provider.
Flickering on the screen
This may occur occasionally. It is due to data refreshing and is not a malfunction.
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