Fujitsu AIRSTAGE J-II Design & Technical Manual page 322

Energy saving management *1
z „
A variety of energy saving operations can be set and managed depending on the season,
weather, and time period.
Excellent energy saving operation is performed while keeping users comfortable.
*1: UTY-PEGX option is necessary.
Energy Saving Management Main Screen
Peak cut operation
●
„
A power meter is connected to detect the total
power consumption while shifting the indoor unit set
temperature, set the indoor unit forced thermostat
off, and taking other measures to carefully control
the power consumed while maintaining comfort
and conducting control to maintain the target power
consumption set for each time. The indoor units to
be controlled can be freely grouped and the control
level can be set.
Outdoor unit capacity save
●
„
Outdoor unit capacity save switches the outdoor unit capability upper limit to suppress power
consumption during hot summers and cold winters by averaging the power saving effect of
each refrigerant system. You can select from 50% or more of the capacity upper limit.
Hot day of
summer
Cold day
of winter
Outdoor unit capacity control screen
Indoor unit rotation operation
●
„
The operation of indoor units can be automatically rotated within a group in accordance with
the set annual schedule to reduce power consumption while maintaining comfort. The indoor
unit operation stoppage rate can be selected from 10% to 30%.
Indoor unit rotation screen
Energy saving graph data: This graph compares
the electricity consumption with the previous
month and previous year to make it easy to
analyze the energy saving effect.
Outdoor unit stop range
Shows change
in power
consumption by
time
Outdoor unit
capacity
upper limit
Time
- (05 - 18) -
Forced
thermostat off
range
Target power
consumption
Ideal control line
(Use of average
power consumption)