PVI Industries PV500-45U Temptrac Electronic Controller Panel, Set, Down, Clock, Ext, On/Off

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11 TEMPTRAC™ ELECTRONIC CONTROLLER PANEL

11.1Principle Of Operation

The water heater operates to satisfy the setpoint of the TempTrac digital control whose sensor is located near the top of the water heater tank. Demand (flow) will typically create a drop in temperature, thus activating the water heater to add heat to the stored water. This setpoint is the desired water temperature to maintain.

11.2Lower Led Readout

The default display of the lower readout (Probe 1) is the stored water temperature sensed near the top of the water heater tank. This is used to regulate the temperature of the water heater.

11.3Upper Led Readout

The default display of this readout will display “nu”. This readout can display a temperature reading from a 2nd probe. The 2nd probe can be installed in a thermal well (this optional probe and thermal well, with heat conductive paste, is custom and must be ordered from your PVI representative or directly from PVI) to remotely monitor water temperatures, such as blended water temperature, downstream of a thermal mixing valve or a remote storage tank. Both Probe 1 and Probe 2 temperatures are available for monitoring through the optional MODBUS RTU interface.

11.4Control Buttons

SET

Displays and modifies the temperature set points.

In programming mode, it selects a parameter or confirms an operation.

 

 

 

UP

Displays and modifies the energy saving (Night Time setback) settings.

In programming mode, it browses the parameter codes or increases a displayed value.

 

DOWN

Displays the working hours of the load relays.

In programming mode, it browses the parameter codes or decreases a displayed value.

 

CLOCK

Changes lower display from the stored water temperature to current time and day.

 

 

 

Changes upper display from Probe 2 temperature to Probe 3 temperature (when installed).

EXT

Also displays the temperature difference of the stored water temperature minus Probe 2

 

temperature. In programming mode it sets the 4-20mA output (password is required).

ON/OFF

Switches the control ON or OFF.

 

 

 

(See TempTrac User Manual PV500-40 for full description)

 

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PV500-45U 06/12

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Contents Installation & Maintenance Manual Table of Contents Remote Connections Terminal Strip Operating and Safety ControlsTroubleshooting Guide Replacement Parts Temptrac Electronic Controller PanelProduct Safety Information Safety ConsiderationsBelow scalding temperatures Standard Features and Equipment Series Series Series Electrical Requirements Water Heater InstallationChecking Equipment Before You Install CodesInlet and Outlet Connections Service ClearancesClearances To Combustible Surfaces General Piping GuidelinesPV500-45U 06/12 PV500-45U 06/12 Optional Condensate Neutralization System Convert Fittings to Equivalent Straight Pipe GAS Supply and PipingInlet Pressure NAT. GAS Inches Single Unit Installation Suggested Pipe SizeMultiple Unit Installations GAS Piping Size Chart Nominal Iron Length of Pipe in Straight FeetCombustion and Ventilation AIR Vertical or Horizontal Remote Air Duct Termination Duct Fitting Equivalent Length Duct PipeMaximum Category IV Vent Length Equivalent Length VentingVenting the Tricon Combining Category IV Vents Vent Fitting Equivalent Length Vent PipeTemperature and Pressure Relief Valve s Operating and Safety ControlsElectronic Low Water Cut-Off Optional High Water Temperature Limit ControlCathodic Protection Clock Temptrac Electronic Controller PanelSET DownTo Change Other Parameters To View The SetpointTo Change The Setpoint Remote Connections Terminal Strip LED Display Alarm MessagesAlarm Cause Results of Alarm Condition Message Recommended ActionIncoming 120VAC Sequence of OperationLED Indication Fault Mode Loss of Flame SignalInitial Startup Turn-on main gas shutoff valve PV500-45U 06/12 Gas Train Illustration for Models 65 through Gas Train Illustration for Models 40 throughProblem Probable Cause Corrective Action Troubleshooting GuideReplacement Parts Replacement PartsControl Panel Contact factory for more information Burner Assembly Optional components may or may not be shown Item No Qty PVI Part No Description Contact factory for more informationPeriodic Maintenance PV500-45U 06/12 Recommended Maintenance Schedule PV500-45U 06/12 PV500-45U 06/12
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