Controls Configuration & Adjustments...

Level-2 Microprocessor Programming... continued:

4.Water Sensor Calibration... continued:

C.Follow the steps 1, A through 1, D to enter the service menu. Once [dEL] is displayed, press the [POOL/SPA] key until the display shows [tSC] (Water Temperature Calibration). Using either the [UP] or [DOWN] arrow keys, calibrate the water temperature sensor by increasing or decreasing the numeric value displayed to match the measured water temperature. The controller can be adjusted to +10oF to –10oF from the nominal displayed temperature. However, offset calibrations greater than 3oF should be avoided… Such large offsets generally indicate problems with the method of water temperature measurement, a water sensor not properly inserted into the well, or other equipment issues. Do NOT attempt to mask such issues through offset calibration.

D.Once the corrected temperature is displayed, Not pressing any buttons for 15 seconds will allow the controller to save the selection and return to the normal operating mode. Pressing the {POOL/SPA] key will also save the selection and step to the next menu parameter:

[dSC] (Defrost Sensor Calibration).

5.Defrost Sensor Calibration [dSC] (Checking-Adjusting):

In the event it is suspected the defrost Sensor requires calibration, the following steps must be followed closely to ensure correct defrost operation:

A.At the heater control panel “Mode” button, set the system to OFF.

B.Remove the heater front panel to gain access to the defrost sensor location. The defrost sensor will be found strapped to the suction line in combination with the TXV bulb, or strapped and separately insulated nearby the TXV bulb. Note: if unsure of sensor location, follow–to termination–the pair of wires leading from the “FS” terminals on the controller PC board.

C.Position a clamp-on, thermocouple-type temperature sensor onto the suction line; position the clamp immediately adjacent to the defrost sensor. Connect the clamp-on thermocouple to a multimeter designed to accept the input of the clamp-on device.

D.Once the heatter has remaiinted OFF for a minimum of 10-minutes, procede to step “E,” below.

E.Follow steps 1, A through 1, D to enter the service menu. Once [dEL] is displayed, press the [POOL/SPA] key until the display shows [dSC] (Defrost Sensor Calibration). With [dSC] displayed, pressing either the [UP] or [DOWN] arrow key, once, will display the current temperature value of the defrost sensor.

F.Compare the controller’s displayed defrost sensor temperature against the reading obtained by the clamp-on device. If the temperatures are the same, or within 1oF, calibration is NOT necessary. If the temperatures differ by 2 to 3oF, calibration is necessary. The controller can be adjusted to +10oF to –10oF from the nominal displayed temperature. However, offset calibrations greater than 3oF should be avoided. Such large offsets generally indicate problems with the method of suction line temperature measurement, a defrost sensor not properly attached to the suction line, or other equipment issues. Do NOT attempt to mask such issues through offset calibration.

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Aquacal 111, 101, 121, 156, 110, 135 owner manual Defrost Sensor Calibration dSC Checking-Adjusting
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121, 111, 101, 135, 110 specifications

Aquacal is a well-known brand in the field of heating and cooling solutions, particularly recognized for its advanced heat pump technology dedicated to pool heating. The Aquacal models 156, 110, 135, and 101,111, offer a range of features and technologies tailored to meet diverse customer needs, ensuring that pools remain at a comfortable temperature regardless of the weather outside.

One of the standout features of Aquacal heat pumps is their energy efficiency. These models are designed to operate using renewable energy, extracting heat from the air, which significantly reduces operational costs compared to traditional gas heaters. The Environmental Protection Agency (EPA) endorses heat pumps, making them an eco-friendly choice for pool heating.

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In conclusion, the Aquacal 156, 110, 135, and 101,111 models represent a versatile and energy-efficient choice for pool heating. With their advanced technologies, user-friendly features, and durable construction, they cater to a variety of preferences, making them a popular selection among pool owners looking to maintain comfortable swimming conditions while remaining mindful of energy consumption and costs.
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