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
Page 1 / 6 PV500-40 01/25/11
1. DISPLAY AND INTERFACE
1.1 KEYBOARD BUTTONS
- Displays and modifies the temperature set points.
SET
UP
DOWN
CLOCK
EXT
ON/OFF
- In programming mode, it selects a parameter or confirms an operation.
- Displays and modifies the energy saving (Night Time setback) settings.
- In programming mode, it browses the parameter codes or increases a
displayed value.
- Displays the working hours of the load relays.
- In programming mode, it browses the parameter codes or decreases a
displayed value.
- Changes lower display from Probe 1 (Depending on product, probe 1 may
display lower tank/inlet or upper tank/outlet temperature or may not be used.) to
current time and day.
- Changes upper display from Outlet Temperature to Probe 3 (Optional
Temperature Probe. Used for Outdoor Reset on Boilers) and displays the
temperature difference of the Inlet Temperature minus Outlet temperature.
In programming mode it sets the 4-20mA output (password is required).
- Switches the control ON or OFF.
1.2 KEY COMBINATIONS
+
+
+
1.3 LED ICON LEGEND
LED MODE Function
ON Temperatures are displayed in Fahrenheit degree
ON Temperatures are displayed in Celsius degree
Flashing Call for heat time delay
ON Call for heat is on
Flashing Second stage time delay (On 2-stage units only)
ON Second stage on
Flashing Freeze protection time delay
ON Freeze protection on
ON Modulation output signal is in manual control mode
ON Modulation output signal is automatically controlled by temperature probe 1
Ext
ES ON The energy saving function is running
ON The outside temperature is displayed
FLASHING Low gas pressure alarm
FLASHING High gas pressure alarm
FLASHING Low-water alarm
ON Lower LED readout is displaying the clock
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.
Page 2 / 6 PV500-40 01/25/11
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
button is
pressed and released twice.
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. 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
Change the value by pressing the
button and the value in the Lower LED will start flashing.
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.
Page 3 / 6 PV500-40 01/25/11
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
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
To program different set points proceed as described below:
on products that have freeze protection.
on products that have stage-fired/modulating burners.
1. Press the
Lower LED readout will show the corresponding value.
2. Use the
parameter names.
3. Press the
readout.
4. To change it, press the
5. Press the
6. Repeat the operations described at point 3, 4, 5.
7. To exit, push
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.
button, the Upper LED readout will display the “St1” parameter name, while the
or buttons to cycle the Upper LED readout through the St 1, St 2 and St 3
button to modify a parameter value. The value starts flashing in the Lower LED
or buttons.
button to confirm the value and pass to the setting of next set point.
+ or wait 15 seconds without pressing any button.
Page 4 / 6 PV500-40 01/25/11
-
-
-
-
-
-
-
-
-
-
-
-
-
2.2 HOW TO LOCK THE KEYBOARD
2.3 HOT KEY PROGRAMMING (FOR FACTORY SUPPORTED FIELD REPROGRAMMING)
To upload a program from a control to a HOT KEY:
To download a program from a HOT KEY to a control:
ON/OFF
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.
+
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
when finished. Push any key to return to normal operation.
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.
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
“P2” Probe 2 failure
“P3” Probe 3 failure
“HA” High temperature limit set point exceeded
“LA” Low- temperature alarm
HP High gas pressure/low water cut-off alarm
LP Low gas pressure alarm
Mn1 Maintenance alert for call-for-heat
Mn2 Maintenance alert for second stage
Mn3 Maintenance alert for freeze protection
“rtc” The real time clock has lost the setting
“rtF” Real time clock failure
Call for heat and burner second stage
interrupted; modulation output signal will
revert to low fire
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
Page 5 / 6 PV500-40 01/25/11
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 connecti ons
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 norma lized 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.
Page 6 / 6 PV500-40 01/25/11
Loading...