BOILER & 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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1.4
UPPER LED READOUT
The default display of this readout is the temperature sensed at Probe 2. In a Boiler, Probe 2 will be
inserted into the outlet area and can control the outlet temperature. In a Water Heater, Probe 2 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).
By pressing and releasing the
button once, the Upper LED will display the actual
temperature sensed at Probe 3 (Optional Temperature Probe. Used for Outdoor Reset on
Boilers).
By pressing and releasing the
button twice, the Upper LED will display the difference
between the actual temperature sensed at Probe 2 and the temperature sensed at Probe 1 (if
used).
To return to the default in the Upper LED readout, wait 15 seconds after the
pressed and released twice.
button is
1.5
LOWER LED READOUT
The default display of this readout is the temperature sensed at Probe 1. In a Boiler, Probe 1 will be
inserted into the return piping of the boiler heating loop. In a Water Heater, Probe 1 (if used) will
be inserted into upper area of the storage tank.
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. The 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.
3.
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
To adjust a value, press the
button and the value in the Lower LED will start flashing.
Change the value by pressing the
or
buttons. When correct, press
.
4.
To exit push
+
or wait 15 seconds without pressing any buttons.
1.7
TO SET THE ENERGY SAVING TIME (NIGHTIME SETBACK)
Contact factory for detailed TempTrac instructions.
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1.8
TO SET MODULATION PARAMETERS
Contact factory for detailed TempTrac instructions.
2. PROGRAMMING
2.1
SETPOINT 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
readout.
button to modify a parameter value. The value starts flashing in the Lower LED
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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2.2
HOW TO LOCK THE KEYBOARD
1. Push and hold the UP + DOWN keys for more than 3 seconds.
2. The “POF” message will be displayed and the keyboard is locked. At this point it
is only possible to view the set point.
3. Repeat step 1 to unlock the keyboard.
2.3
HOT KEY PROGRAMMING (FOR FACTORY SUPPORTED FIELD REPROGRAMMING)
To upload a program from a control to a HOT KEY:
Insert HOT KEY into the TTL connection on the back of the control.
Press and hold UP + DOWN keys momentarily then press the UP key.
The “Upl” message will appear while uploading is occurring and the
“End” message will appear when finished. Push any key to return to
normal operation.
+
To download a program from a HOT KEY to a control:
Press the ON/OFF key to turn off the control. Insert the HOT KEY into the TTL connection on
the back of the control. Press the ON/OFF key again and downloading will begin. The “don”
message will appear while downloading is occurring and the “End” message will appear
ON/OFF
when finished. Push any key to return to normal operation.
3. ALARMS
Alarm messages are displayed in the upper LED readout and alternate with the default display.
An alarm LED icon is also illuminated.
Message Cause
Results of alarm condition
“P1”
Probe 1 failure
-
Call for heat and burner second stage
interrupted; modulation output signal will
revert to low fire
“P2”
“P3”
Probe 2 failure
Probe 3 failure
-
-
-
-
-
-
-
-
-
-
-
-
Freeze protection is disabled
Outdoor reset disabled
Warm weather shut down disabled
Buzzer sounds, operation continues
Buzzer sounds, operation continues
Unit deenergized after time delay
Unit deenergized after time delay
Buzzer sounds, operation continues
Buzzer sounds, operation continues
Buzzer sounds, operation continues
Energy saving functions disabled
Energy saving functions disabled
“HA”
“LA”
HP
High temperature limit set point exceeded
Low- temperature alarm
High gas pressure/low water cut-off alarm
Low gas pressure alarm
Maintenance alert for call-for-heat
Maintenance alert for second stage
Maintenance alert for freeze protection
The real time clock has lost the setting
Real time clock failure
LP
Mn1
Mn2
Mn3
“rtc”
“rtF”
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3.1
BUZZER
The TempTrac buzzer is activated each time connected alarm condition happens. The following are
representative alarm conditions that may be connected to and activate the TempTrac buzzer (some
alarms may be connected to and operate separately from the TempTrac on some products).
High/low water temperature alarm
Probe failures
High and low gas pressure
Low water
The buzzer is silenced by pressing any button (alarm condition still present)
3.2 ALARM RECOVERY
1. Probe failure alarm automatically ends after normal operation is re-established. Check connections
before replacing the probe.
2. Temperature alarms “HA” and “LA” automatically stop as soon as probe 1 senses temperatures
within normal operating parameters.
3. High and low gas pressure alarms recover when pressure is normalized and any button is pressed.
(if used)
4. Low water alarm recovers when water level normalizes and any button is pressed. (if used)
5. RTC alarm stops after programming the real time clock.
6. RTF alarm requires the replacement of the real time clock.
For additional information, contact the PVI Industries Customer Service Dept at 800-784-8326.
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