PVI Industries PV500-40 user manual Programming, To SET Modulation Parameters

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1.8TO SET MODULATION PARAMETERS

Contact factory for detailed TempTrac instructions.

2.PROGRAMMING

2.1SETPOINT DESCRIPTIONS AND PROGRAMMING

Setpoints are those temperature or operating parameters that the user can adjust.

St 1 - This setpoint temperature should be considered the °F or °C temperature threshold to activate the burner. The setpoint corresponds directly to the temperature sensed by probe 1. The St 1 setpoint is programmed as an absolute temperature; for example 160°F.

St 2 - This setpoint corresponds to the threshold for second-stage burner operation. The St 2 setpoint is programmed as the number of degrees below St 1 (setpoint 1) when the second stage will activate; for instance, - 8. The St 2 setpoint is only applicable on products that have stage-fired/modulating burners.

St 3 - This setpoint represents the temperature threshold for activation of freeze protection. The St 3 setpoint is programmed as an absolute temperature; for example 40°F. The St 3 setpoint is only applicable on products that have freeze protection.

To program different set points proceed as described below:

1.Press the button, the Upper LED readout will display the “St1” parameter name, while the Lower LED readout will show the corresponding value.

2.Use the or buttons to cycle the Upper LED readout through the St 1, St 2 and St 3 parameter names.

3.Press the button to modify a parameter value. The value starts flashing in the Lower LED readout.

4.To change it, press the or buttons.

5.Press the button to confirm the value and pass to the setting of next set point.

6.Repeat the operations described at point 3, 4, 5.

7.To exit, push + or wait 15 seconds without pressing any button.

NOTE: each point has a time out of 15 seconds. If no 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 the 15 second expiration.

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PV500-40 01/25/11

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Contents Boiler & Water Heater Electronic Controller Upper LED Readout LED Icons Lower LED ReadoutDisplay and Interface To SET the Current Time and DAY Military Time Upper LED ReadoutTo SET the Energy Saving Time Nightime Setback To SET Modulation Parameters ProgrammingSetpoint Descriptions and Programming Alarms HOW to Lock the KeyboardResults of alarm condition Message CauseAlarm Recovery Buzzer