Daikin REMQ14PY1 [404/491] Cooling

Daikin REMQ10PY1 [404/491] Cooling
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Cooling
High pressure
Low pressure
Frequency
The opening degree of the indoor unit
motorized valve becomes larger.
Either of the motorized valves
becomes fully open.
Frequency comes to the minimum level.
Fan control is activated for HP
protection under cooling control
at low outdoor temperature,
i.e., the fan is hunting at HP.
HP drops with decrease
in compressor capacity.
If frequency comes to the
minimum level, LP
cannot be maintained.
LP rises as the opening
degree of the indoor unit
motorized valve becomes
larger. Frequency slightly
increases under the
capacity control.
To maintain LP,
frequency drops
due to the
capacity control.
Heating
The opening degree of the outdoor unit motorized valve becomes larger.
The outdoor unit motorized valve fully opens and frequency increases.
Discharge pipe or LP drooping control
(HP is maintained
at a constant level.)
To maintain LP, frequency
drops due to the capacity
control.
Frequency drops
due to the drooping
control.
(LP is maintained
at a constant level.)
Frequency comes to
the minimum level.
High pressure
Low pressure
Frequency
(Degree of refrigerant shortage)
Higher degree of shortage
Proper quantity

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