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ILAHP Inverter Extreme Air-to-Water Heat Pump
Temperature Compensation/Outdoor Reset Screen
The Outdoor Reset feature allows the Heat Pump to target specific Heating Temperatures according to the outdoor ambient temperature.
The Outdoor Reset curve is determined by three values;
1. The Maximum supply temperature, Parameter R42
2. The Offset, which is the Theoretical Target Temperature at 0°F Ambient
3. The Slope, which is the change in Water Temp, with respect to the change in Ambient Temp. This is expressed as the Water Temp
change divided by the Ambient Temp. both expressed in degrees F.
The value of R42 is accessed through the Parameter Menu, the Offset and Slope are entered directly in the Temperature Compensation
Screen.
A window at the bottom of the screen allows the user to enter an arbitrary Ambient Temp. and seeing the predicted Target Temp. This is
for information only and does not change the settings.
Where the Slope and Offset values would result in Supply temperature greater than the value of R42, the actual supply temperature is
limited to not exceed R42. At Ambient temperatures greater than 68°F, the Supply temperature is maintained the same as at 68°F.
Note:
when Outdoor Reset is on, the Heating Temperature Setpoint, R02, has no effect on unit operation. The temperature is controlled
solely by the three values above.