12a-18
CONTROL SYSTEM
Revision
0
12A.7. Automatic Cooling or Heating
12Α.7.1. Automatic Cooling or Heating - General
•
Mode Definition
Mode: Auto
Temp: Selected
desired
temperature
Fan: Any
(except
STRONG)
Timer: Any
I Feel:
On or Off
•
Switching-temperature between Cooling and Heating is SPT
±
3
o
c.
•
When the Auto Mode is started with SPT +/-0
o
c, the unit will not select Auto Heat
or Auto Cool mode immediately. Instead, the unit will be in a temporary Fan Mode
with IFAN operating at low speed. The proper Auto Heat mode or Auto Cool will be
started whenever the RT reaches SPT-1
o
c or SPT+1
o
c respectively.
•
For RC & SH units, Mode change between Auto Heat & Auto Cool Modes is
possible only after the COMP has been OFF during the last T minutes.
Mode Change
time, T
Auto Cool to Auto Heat
3 min
Auto Heat to Auto Cool
4 min
.
•
When unit is changed form Cool/Dry mode to Auto Mode, the unit will continue to
operate at (Auto) Cool Mode until the conditions for switching from Auto Cool to
Auto Heat are satisfied.
Similarly, when unit is changed from Heat Mode to Auto Mode, the unit will continue
to operate at (Auto) Heat Mode until the conditions for switching from Auto Heat to
Auto Cool are satisfied.
Содержание ONG 12
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