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'11•SAF-T-161
(9) Automatic supply air temp. adjust. control
・
IncaseSW7-4isON,whentheroomtemp.becomesthesettemperature,
targetpressureischangedautomatically.
Controllerchecksreturnairtemp.every2minsanddecidestargetpressure.
Thepurposeofthiscontrolispreventingfromovercooling/overheating.
Applicationcondition
・
SystemhasonlySAFunits
・
Detectroomtemp.(UseRemotecontrollersensororRemotesensor)
supply air temp.
At the intersection of the solid line (mark
̪
), since the room temp. gets closer to the
set temp., the target low pressure is adjusted to increase so that the inverter Hz is
decreased, and then indoor heat exch. temp. and supply air temp. are increased.
Example of automatic supply air temp. adjust. control in cooling
Inverter actual Hz
Low pressure
Indoor heat exch.temp.
̪
̪
Cooling
Thermo OFF
Set temp -1℃
Set temp
Set temp
Set temp +1℃
Target low
pressure High
Target low
pressure Standard
Heating
Target high
pressure Standard
Thermo OFF