No.
Item
Outline of specifications
Remarks
DN [FB]
Data
Power shift
0000
Unavailable (Factory default)
0001
Available
3
2
Power shift
1) This is control that, when air conditioners in different systems
are installed in the same space controlled in a group, and the
load within the space is imbalanced, lowers the used power
within the whole group by limiting air conditioners having
compressors that are operating at a highly inefficient
frequency, and making up for insufficient performance by
operating other air conditioners.
2) When using this function, set the unit CODE No. (DN) [FB] to
“0001” (valid) for all indoor units within the controlled group.
3) When the load is determined to be unbalanced after a
defined period of normal cooling operations or heating
operations, the frequency of the outdoor unit compressor
which is operating under the highest load will be limited.
This function is invalid with auto cooling operations, dry
operations, and air fan operations.
4) The frequency is limited 10% at the maximum, in accordance
with the temperature difference of TA (indoor temperature)
and Ts (set temperature).
Δt = TA - Ts (during cooling operations),
Δt = Ts - TA (during heating operations)
5) The limitation will be lifted when either of the following
conditions are satisfied.
• Any one of the set temperature, fan speed, wind direction,
or the operation mode is changed from the remote controller.
• Defrosting operations are performed within the group
• Δt > 3ºC has been satisfied for five minutes
6) The limitation will continue until the operations are stopped
or the operation mode is changed for the air conditioners
under the limitation.
- 42 -
