General Functionality
SIE-86
14
Main Function
Inverter features
The inverter provides the following features:
The regulating capacity can be changed according to the changes in the outside temperature and
cooling/heating load.
Quick heating and quick cooling
The compressor rotational speed is increased when starting the heating (or cooling). This enables a
quick set temperature.
Even during extreme cold weather, the high capacity is achieved. It is maintained even when the
outside temperature is 0˚C.
Comfortable air conditioning
A detailed adjustment is integrated to ensure a fixed room temperature. It is possible to air condition
with a small room temperature variation.
Energy saving heating and cooling
Once the set temperature is reached, the energy saving operation enables to maintain the room
temperature at low power.
Frequency limits
The following table shows the functions that define the minimum and maximum frequency:
Forced cooling/
heating operation
For more information, refer to “Forced mode” on page 16.
60
120
300
45˚C
Air discharge
temperature
inverter
normal heat pump
Start
seconds
(RG001)
Frequency limits
Limited during the activation of following functions
Low
four way valve operation compensation. Refer to page 30.
Wet Operation Protection Function. Refer to page 32.
High
Input current control. Refer to page 27.
Compressor protection function. Refer to page 31.
low outdoor temperature control. Refer to page 11.
high pressure limitation. Refer to page 11.
peak cut off. Refer to page 11.
freeze-up prevention. Refer to page 11.
defrost control. Refer to page 15.
Si-86.book Page 14 Friday, June 23, 2000 10:26 AM
