LAARS Pennant PNCV (Sizes 200, 300, 400) - Install and Operating Manual - Manual (Page 32)

LAARS Heating Systems
Page 30 Pennant 200, 300, 400 Page 31
enables response to low temperature detection. EP
enables energizing of the auxiliary contacts for the
exercize feature. To change any of these parameters:
1. While the default temperature is displayed, press
and hold the upper and lower buttons together
until SEL is displayed.
2. Release the buttons, and CH1 will be displayed.
3. Within 30 seconds, press the upper (or lower)
button. CH2 will be displayed.
4. Within 30 seconds, press and hold the upper and
lower buttons together until the parameter you
want to change is displayed.
5. Release the buttons to displayed the value of that
parameter.
6. Within 30 seconds, press the upper button
to increase the value, or the lower button to
decrease the value of the parameter, or to toggle
the selection.
7. When the desired value is shown, stop pushing
the buttons. The revised value is effective
immediately.
8. In 30 seconds of button inactivity, the display
reverts back to the default temperature, and the
new value is stored in nonvolatile memory.
6.6.6 Changing the Default Temperature
Selection
You may change what is normally displayed on
the temperature control to show the temperature at
either thermistor 1 or thermistor 2:
1. While the default temperature is displayed, press
and hold the upper and lower buttons together
until SEL is displayed.
2. Release the buttons, and CH1 will be displayed.
3. Within 30 seconds, press the upper (or lower)
button. CH2 will be displayed.
4. Within 30 seconds, press the upper (or lower)
button. dEf will be displayed.
5. Within 30 seconds, press and hold the upper and
lower buttons together until the current default
(rt1 or rt2) is displayed.
6. Release the buttons.
7. Within 30 seconds, press the upper (or lower)
button to toggle the dEf selection, between rt1
and rt2.
8. When the desired thermistor is shown (rt1
is thermistor 1, and rt2 is thermistor 2), stop
pushing the buttons. In 30 seconds of button
inactivity, the display shows the selected default
temperature, and the selection is stored in
nonvolatile memory, as the default temperature
display.
6.6.7 Changing the Display Units
You may change what is normally displayed on
the temperature control to show the temperature in
either °F or °C:
1. While the default temperature is displayed, press
and hold the upper and lower buttons together
until SEL is displayed.
2. Release the buttons, and CH1 will be displayed.
3. Within 30 seconds, press the upper (or lower)
button. CH2 will be displayed.
4. Within 30 seconds, press the upper (or lower)
button. dEf will be displayed.
5. Within 30 seconds, press the upper (or lower)
button. UnI will be displayed.
6. Within 30 seconds, press and hold the upper and
lower buttons together until the current default
(°F or °C) is displayed.
7. Release the buttons.
8. Within 30 seconds, press the upper (or lower)
button to toggle the UnI selection, between °F
and °C.
9. When the desired unit is shown, stop pushing the
buttons. In 30 seconds of button inactivity, the
display shows the selected default temperature
with the selected units, and the selection is stored
in nonvolatile memory, as the default temperature
units.
6.7 Operating the Burner and Set-Up
6.7.1 Set-Up for 0 to 2500 Feet Altitude
The setup must be checked before the unit is put
in operation. Problems such as failure to start, rough
ignition, strong exhaust odors, etc. can be due to
improper setup. Damage to the Pennant resulting from
improper setup is not covered by the limited warranty.
1. Using this manual, make sure the installation
is complete and fully in compliance with the
instructions.
2. Determine that the appliance and system are
filled with water and all air has been bled from
both. Open all valves.
3. Observe all warnings on the Operating
Instructions label and turn on gas and electrical
power to appliance.
4. Switch on the appliance power switch located on
the right side of the unit.
5. The Pennant will enter the start sequence, as long
as the unit is being called for heat. The blower
and pump come on for pre-purge, then the ignitor
warm-up sequence starts and after the ignitor
warm-up is complete and all safety devices are
verified, the gas valves open. If ignition doesn’t
occur, check that there is proper gas supply.
Wait 5 minutes and start the unit again. During
initial start up, air in the gas line may cause the
Pennant to "lock out" during the first few trials