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H. Return system controls to desired mode of operation. 6. Spa Dead Band Differential [dBS]: In the heating mode, the dead band differential determines the number of degrees the water temperature must fall below the set point before the thermostat closes. In the cooling mode, the dead band differential determines the number of degrees the water temperature must rise above the set point before the thermostat closes. When in the auto-changeover mode, the dead band differential operates in the same manner as described above for the heating and the cooling modes. However, in all modes, the thermostat will open when the set point is reached independent of the direction the water temperature is changing. The factory spa dead band differential is set to 1oF. It is strongly recommended the factory default of 1oF remain; however, if for some reason the dead band requires adjustment, follow the steps outlined below: A. 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 [dBS] (Spa Dead Band Differential). B. With the service menu parameter [dBS] displayed, pressing either the [UP] or [DOWN] arrow keys, once, will display the current setting. Using the [UP] or [DOWN] arrows keys will increase or decrease the value respectively. The differential is adjustable in 1o increments from 1 to 5-degrees. C. Once the desired dead band value has been selected, 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: [dBP] (Dead Band Pool). 7. Pool Dead Band Differential [dBP]: In the heating mode, the dead band differential determines the number of degrees the water temperature must fall below the set point before the thermostat closes. In the cooling mode, the dead band differential determines the number of degrees the water temperature must rise above the set point before the thermostat closes. When in the auto-changeover mode, the dead band differential operates in the same manner as described above for the heating and the cooling modes. However, in all modes, the thermostat will open when the set point is reached independent of the direction the water temperature is changing. The factory pool dead band differential is set to 1oF. It is strongly recommended the factory default of 1oF remain; however, if for some reason the dead band requires adjustment, follow the steps outlined below: A. 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 [dBP] (Pool Dead Band Differential). B. With the service menu parameter [dBP] displayed, pressing either the [UP] or [DOWN] arrow keys, once, will display the current setting. Using the [UP] or [DOWN] arrows keys will increase or decrease the value respectively. The differential is adjustable in 1o increments from 1 to 5 degrees. (Continued on Next Page) Controls Configuration & Adjustments... Level-2 Microprocessor Programming... continued: 7. Pool Dead Band Differential... continued: C. Once the desired dead band value has been selected, 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: [LOC] (LOCK CODE). 8. Changing the Service Lock Code and “Back Door” Entry: A. Changing the Code… The factory default Service Lock Code is “50”. Service personnel are strongly advised to retain the factory default setting. However, should unauthorized access to Level-2 (Service) menu be suspected, it may be necessary to select a code other than “50”. To change the Service Lock Code: 1) 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 [LOC] (LOCK CODE). 2) Press the [UP] arrow key to display the current service lock code value. With the current value displayed the [UP] arrow key will increase the value while the [DOWN] arrow key will decrease the value. When the desired value is displayed not pressing depressing 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. It is recommended, however, unless attempting to prevent tampering, that the factory setting of: “50” remain in use. B. Back-door Access (For use when correct Service Lock Code is unknown): 1) Simultaneously press and hold the [POOL/SPA] and [UP ARROW] keys until the display shows “888”. This operation will reset the controller to the factory default settings. 2) The factory reset will change the service lock code back to the factory setting “50”. In addition, all other settings (including external controller con...

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