PVI Industries TempTrac User Manual

WATER HEATER

ELECTRONIC CONTROLLER

USER MANUAL

UPPER LED READOUT
LOWER LED READOUT

LED ICONS

PVI Industries, LLC • 3209 Galvez Dr • Fort Worth, Texas 76111 • 800-784-8326

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1. DISPLAY AND INTERFACE

1.1 KEYBOARD BUTTONS

- Displays and modifies the temperature set points.

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

SET

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

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

UP

DOWN

CLOCK

EXT

ON/OFF

1.2 KEY COMBINATIONS

- Displays the working hours of the load relays.

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

- Changes the lower display from the Probe temperature to current time and vice versa.

- To set the current time and day.

- Changes upper display between Probe 1, 2 and 3 temperatures, modulation % or the

temperature difference between Probe 1 and 2.

- In programming mode it sets the 4-20mA output (Passkey is required (321)).

- Switches the control ON or OFF.

+

+
+

1.3 LED ICON LEGEND

LED MODE Function

ON Temperatures are displayed in degrees Fahrenheit
ON Temperatures are displayed in degrees Celsius
Flashing Call for heat time delay or remote enable/disable is in standby (disabled)
ON Call for heat is on
Flashing Second stage time delay (On 2-stage units only)
ON Second stage on or the AL2 alarm output is enabled.
Flashing Output 3 time delay
ON Output 3 relay on
ON Modulation output signal is in manual control mode or forced to the i1S setting

ON Modulation output signal is automatically controlled by temperature probe 1
Flashing Modulation output time delay is activated.

Ext

ES ON The energy saving function is running

ON Probe 3 is displayed
FLASHING Digital input 2 (alarm) is activated
FLASHING Digital input 3 (alarm) is activated
ON Lower display is displaying the time
FLASHING Alarm signal
FLASHING Programmed working hours limit is exceeded

ON Working hours are displayed in Lower LED readout

To lock and unlock the keyboard.

To enter the programming mode.

To exit the programming mode.

by digital input 1

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1.4 UPPER LED READOUT

The default display of this readout is the temperature sensed at Probe 2. Probe 2 may display the tank stored water

temperature, outlet water temperature, flue gas temperature, ambient temperature, remote tank or blended water
temperature, etc., depending on the product and application. Refer to your specific water heaters Installation and
Maintenance Manual and the supplied wiring drawing. The upper LED readout can also be switched to display
Probe 1 or 3 (if used) or the modulation % or the temperature difference between Probe 1 and 2. If Probe 2 is not
utilized, the display will show “nu”.

By pressing and releasing the

button once, the Upper LED will display the actual temperature sensed at
Probe 3. Probe 3 (if used) may display the flue gas temperature or outside ambient temperature, etc.,
depending on the product and application.

By pressing and releasing the

button again, the Upper LED will display the modulation % (indicated by 0 to

100%). If the product is a non-modulating product, the displayed value should not be considered.

By pressing and releasing the

button a third time, the Upper LED will display the difference between the
temperature sensed at Probe 2 (if used) and the temperature sensed at Probe 1.

To return to the default in the Upper LED readout, press the

button to cycle back to the Probe 2

temperature.

All of the display information described above is available for monitoring through the optional MODBUS RTU

interface.

1.5 LOWER LED READOUT

The default display of this readout is the temperature sensed at Probe 1. Probe 1 will be inserted into the

appropriate area of the storage tank to provide effective temperature response for the heat source (this may not
be at the top of the tank). Refer to your specific water heaters Installation and Maintenance Manual and the
supplied wiring drawing. The lower LED readout can also be switched to display Probe 2 or 3 (if used) or the
modulation % or the Time of Day.

By pressing and releasing the

button once, the Lower LED display will show the Time of Day. Press again

to return to default display.

1.6 TO SET THE CURRENT TIME AND DAY (MILITARY TIME)

1. Push and hold the button for more than 3 seconds. Th e LED icon starts flashing and the “Hur” (hour)
parameter name is displayed in the Upper LED readout, its value is displayed in the Lower LED readout.

2. Pushing the

or button alternates the LED readouts between the following:

 “Hur” (hour) in the Upper readout and its value in the lower readout
 “Min” (minute) in the Upper readout, its value in the Lower readout
 “dAY” (day) in the Upper readout, its value in the Lower readout

3. To adjust a value, press the

pressing the

or buttons. When correct, press .

button and the value in the Lower LED will start flashing. Change the value by

4. To exit push

+ or wait 15 seconds without pressing any buttons.

Note: This device recognizes Sunday as the first day of the week and Saturday as the last.

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