Another mode exists which permits the service technician to modify the calibration of the sensors as well as different control parameters.

TO ENTER THE SERVICE MODE:

To access the service mode hold the [SET] key for 3 seconds. The set mode LED will come on to indicate the set mode. Now hold both the [^] and the [v] key simultaneously for 3 seconds. The service mode LED will come on to indicate the service mode. In the service mode, unlike the set mode, the control does not return automatically to the normal mode 8 seconds after the last key was touched. To exit the service mode you must step through the parameters until you come to the setpoint adjustment mode ( see i. on page 9 ). The first parameter is the water sensor calibration.

c. WATER SENSOR CALIBRATION:

The digital display will show [CXX]. «C» represents the water sensor calibration mode. «XX» is the actual water temperature in °F. If water sensor calibration is necessary, measure the water temperature with a precise digital thermometer and adjust the digital display to show the same value using the [^] and the [v] key. To view or step to the next parameter (defrost sensor calibration), touch the [SET] key.

d. DEFROST SENSOR CALIBRATION:

The digital display will show [cXX]. «c» represents the defrost sensor calibration mode. «XX» is the actual defrost temperature in °F. If defrost sensor calibration is necessary, measure the temperature of the defrost sensor, installed on the side of the evaporator, with a precise digital thermometer and adjust the digital display to show the same value using the [^] and the [v] key. To view or step to the next parameter (defrost cut-in temperature), touch the [SET] key.

e. DEFROST CUT-IN TEMPERATURE ADJUSTMENT:

The digital display will show [LXX]. «L» represents the defrost cut-in temperature adjustment mode. The defrost cut- in temperature is the temperature of the evaporator at which the defrost sequence is initiated. «XX» is the defrost cut-in temperature in °F. This adjustment is factory set at 30 °F. If it is necessary to change this adjustment, adjust the digital display to show the desired value using the [^] and the [v] key. The range of this adjustment is from 10 °F to 60 °F. To view or step to the next parameter (defrost cut-out temperature), touch the [SET] key.

f.DEFROST CUT-OUT TEMPERATURE ADJUSTMENT:

The digital display will show [HXX]. «H» represents the defrost cut-out temperature adjustment mode. The defrost cut-out temperature is the temperature of the evaporator at which the defrost sequence is terminated. «XX» is the defrost cut-out temperature in °F. This adjustment is factory set at 48 °F. If it is necessary to change this adjustment, adjust the digital display to show the desired value using the [^] and the [v] key. The range of this adjustment is from 10 °F to 60 °F. To view or step to the next parameter (deadband adjustment), touch the [SET] key.

g. DEADBAND OR TEMPERATURE DIFFERENTIAL ADJUSTMENT:

The digital display will show [bXX]. «b» represents the deadband adjustment mode. The deadband is the differential between the cut-in and cut-out water temperatures. «XX» is the differential in °F, This adjustment is factory set at ±0.4 °F ([b0.4] on the display). If it is necessary to change this adjustment, adjust the digital display to show the desired value using the [^] and the [v] key. The range of this adjustment is from ± 0.1 °F to ± 1.0 °F. To view or step to the next parameter (compressor defrost delay-off time adjustment), touch the [SET] key.

h. COMPRESSOR DEFROST DELAY-OFF TIME ADJUSTMENT:

The digital display will show [dX.X]. «d» represents the compressor defrost delay-off time adjustment. The compressor defrost delay-off time adjustment is the time that the compressor continues to operate after the defrost temperature falls below the defrost cut-in temperature (ie. 30 °F) «X.X» is the delay time expressed in hours and fractions of hours. This adjustment is factory set at 1.0 hour ([d1.0] on the display). If it is necessary to change this adjustment, adjust the digital display to show the desired value using the [^] and the [v] key. The range of this adjustment is from 0.1 hours to 1.5 hours. To view or step to the next parameter or to exit the service mode (setpoint

adjustment), touch the [SET] key.

i. TO CHANGE THE SETPOINT TEMPERATURE OR TO EXIT THE SERVICE MODE:

Touch the [^] key to increase the setpoint or the [v] key to decrease the setpoint. The adjustment range is from 70 °F to 105 °F (21 °C to 41 °C in the °C mode). You have 8 seconds from the time that the last key was touched to make the adjustment. After 8 seconds the set mode LED will go off and the control will exit the service mode and return to the normal mode.

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Taylor Pool Heat Pump owner manual To Enter the Service Mode

Pool Heat Pump specifications

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