Riverside Hydronics 2000 WB 250A-IF Guía para resolver problemas descargar pdf (Pagina 19)

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• D: The unit will remain in modulation until the sensed temperature rises above 155°F (St4). The firing rate

returns to low fire. Modulation will only reactivate when return loop temperature drops to 155°F.

• E to F: Low fire is maintained if the return loop temperature ranges between 155° and 165°F.

• F: This firing pattern will continue until the temperature reaches the “Burner OFF” threshold of 165°F (St1)

and shuts off.

9.6 To View The Setpoint

• Push and release the SET key to see the set point value.

• To return to normal display, press SET + UP or wait 15 seconds without pressing any key.

9.7 To Change The Setpoint

• Push the SET key. The upper display will show the “St1” parameter name, while the lower display will show

its value.

• Use the UP or DOWN key to cycle through the parameter names.

• Push the SET key to modify a parameter value. The value starts flashing in the lower display.

• To change it push the UP or DOWN keys. Push the SET key again to confirm the value and pass to the

setting of next set point.

• Repeat the operations described at points 3, 4, 5.

• To Exit: press SET + UP or wait 15 seconds without pressing any key

NOTE: Each point has a time out of 15 seconds. If any key is pushed within 15 seconds the controller exits the

set points programming procedure.

NOTE: The set value is stored even when the procedure is exited by waiting the time-out to expire.

9.8 To Change Other Parameters

• Push the SET and DOWN arrow simultaneously for 3 seconds.

• Select the required parameter. The name of the parameter is on the upper display; its value is on the lower

display.

• Press the SET key: the value of the parameter will start blinking.

• Use UP or

DOWN to change the value.

• Press SET to store the new value and move to the following parameter.

• To Exit: Press SET + UP or wait 15s without pressing a key.

9.9 LED Display Alarm Messages

Alarm messages are displayed in t upper LED readout and alternate with the default display. An alarm LED ICON is

also illuminated. (See TempTrac User Manual 34-80 for full description)

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Riverside Hydronics 2000 WB 250A-IF Guía para resolver problemas Pagina 19