Hisense AHM-080HCDSAA - Control Configuration for ou; Control Logic

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Control conguration for OU
11. Control conguration for OU
11.1 Control Logic
No. Item Details
1 Cooling Operation
Comp.Frequency Control
Quasi PI Control
：
(1) Di󰀨erence between indoor outlet water temperature and
target outlet water temperature
(2) Amount of temperature di󰀨erence change.
O.U. Electronic Exp. Valve Control
Quasi PI Control:
To determine the O.U. electronic expansion valve opening so as
to keep the temperature at the top of compressor at an optimum
level.
O.U. Fan Control
To control the fan steps so that hight pressure is within a stable
temperature range.
Reversing Valve Control Reversing Valve: ON
2 Heating Operation
Comp.Frequency Control
Quasi PI Control:
(1) Di󰀨erence between indoor outlet water temperature and
target outlet water temperature
(2) Amount of temperature di󰀨erence change.
O.U. Electronic Exp. Valve Control
Quasi PI Control:
To determine the O.U. electronic expansion valve opening so as
to keep the temperature at the top of compressor at an optimum
level.
O.U. Fan Control
The fan steps are dependent on Ta in the beginning. After to
control the fan steps so that hight and low pressure are within a
stable temperature range and Te is within a stable temperature
range.
Reversing Valve Control Reversing Valve: OFF
3 Defrost Operation
Comp.Frequency Control Fixed compressor frequency
O.U. Electronic Exp. Valve Control
To determine the O.U. electronic expansion valve opening
depending on the discharge temperature of the compressor ,
hight pressure and defrost time.
O.U. Fan Control To stop the outdoor fan.
Reversing Valve Control Reversing Valve: ON