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Heating Compensation Curve Setting
The control temperature for the heating mode has two methods: fixed and changeable
temperatures.
1.
The fixed temperature is a fixed value and is directly set by the end user from the
set area.
2.
The changeable temperature is determined by values of ST05, ST06 and the actual
outdoor temperature measured by the OT sensor probe.
This function is selected by SF04:
When SF04=0, it is fixed temperature;
When SF04=1, it is changeable temperature.
When SF04=0, the set temperature for heating is ST02.
When SF04=1, the set temperature for heating will be controlled by ambient
temperature (OT), ST05 and ST06 according to the following formula:
Set temperature at heating =ST05+ST06 /10*(ST05-OT).
1.
ST05 is indoor temperature that the user feel comfortable
2.
ST06 is the heating compensation coefficient curve factor you select for the
heat pump to work with. Increasing ST06 will increase compensation
temperature and RT will increase relatively.
3.
OT is the outside temperature.
4.
The calculated temperature can be used for the control reference, but the
maximum data will not exceed ST14.
For example:
1.
Set the heating compensation coefficient ST06 to 7,
2.
When outdoor temperature is 0°C, the control temperature is :
ST05+ST06 /10*(ST05-OT)=20+7/10*(20-0)=34°C;
3.
When outdoor temperature is -10°C, the control temperature is :
ST05+ST06 /10*(ST05-OT)=20+7/10*(20-(-10))= 41°C;
4.
When outdoor temperature is –20°C, the control temperature is :
ST05+ST06 /10*(ST05-OT)=20+7/10*(20-(-20))=48°C;
5.
When there is a drop of the outdoor temperature, the control temperature will
become higher to meet the larger heating requirement.
6.
As the outdoor temperature increase, the control temperature will become lower,
this will keep the unit under a lower pressure therefore will have low energy
consumption.
Changing ST05 or ST06 can change the heating curve.
Controller
