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A. GENERAL
1. Confirm that all water, gas and electricity are turned off.
2. Verify that the water piping, venting & air intake
piping, gas piping, electrical wiring and electrical
components are installed in accordance with the
manufacturer’s instructions. Be sure that the boiler is
installed in accordance with this manual and good
engineering practice.
3. Turn on electricity and gas to the boiler.
B. CHECK WATER PIPING
1. Fill the boiler and system with water, making certain
to purge all air from the system. Open each vent in
the system until all air is released and water begins to
be discharged. Then close the vent.
2. Attach the provided 5/16" hose to the barb tapping in
the top left portion of the heat exchanger. While
holding the open end of the hose into a bucket,
loosen the manual air vent until air begins to flow.
Once all air has been purged and only water is
draining, close the manual air vent and remove
the hose.
3. The pressure reducing valve on the fill line will
typically allow the system to be pressurized to 12 PSI.
Consult manufacturers instructions for operation of
the valve and expansion tank. Adjustment of the
system pressure will most likely be required to meet
the 17.5 psig requirement of the control. Lower
system pressures run the risk of steam flashing in the
unit when a high setpoint and low temperature delta
is present. System fill pressure and expansion tank
should be adjusted.
4. Check joints and fittings throughout the system and
repair as required.
C. CHECK GAS PIPING
1. Turn on gas to the boiler using the shut-off valve
upstream of the sediment trap. Be sure that the gas
shut-off valve supplied with the boiler is in the closed
position.
2. Connect a manometer to the gas supply upstream of
the supplied manual gas valve.
3. Confirm that the gas supply pressure to the boiler is
between the minimum and maximum values as
indicated in Section 5.
4. If a supply pressure check is required, isolate the
boiler and gas valve before performing the pressure
test. If the supply pressure is too high or too low,
contact the fuel gas supplier.
5. Double check the fuel gas supply pressure after the
boiler is running to be sure that the pressure doesn’t
drop off significantly under operation.
D. CHECK OPERATION
1. Either disconnect or set the CH thermostat to ensure
there is no call for heat. Also confirm there is no DHW
flow by shutting the isolation valve to the DHW inlet
connection.
2. Turn on electricity and all manual gas valves to the
boiler. Check to see if the LCD display is lit. The
control will display Supply temperature and water
pressure.
3. Refer to Section 8, Boiler Control, to set up the
control for the desired operation.
4. Use the ignition sequence, Figure 8.4 to follow the
light off and shutdown sequences and to assist in
troubleshooting operation problems. If the boiler does
not function properly, consult Section 10,
Troubleshooting.
5. After starting the boiler, be certain that all controls are
working properly and that the combustion is properly
set up. Paragraphs 6 and 7 below provide instructions
on how to do this.
6. Check that the boiler will shut down when the supply
water temperature reaches the control setpoint.
a. Note the boiler setpoint by accessing the Status
Menu and viewing parameter 1012.
b. Use the System Test Mode, parameter 0200 in the
User Menu to choose High Input Power.
c. Monitor the boiler temperature on the temperature
gauge (supplied for field mounting) and on the
Status display.
d. The boiler should shut down at the boiler setpoint
plus 10°F (5.6°C). If it does not shut down turn off
the boiler and contact your PB Heat representative.
7. Check combustion readings in the boiler vent pipe
utilizing the built in analysis port on the vent adapter
(White threaded cap).
9. START-UP PROCEDURE
START-UP PROCEDURE
Ensure the analysis port is tightly sealed once
combustion readings are taken. Leaving the port
unsealed will allow combustion products to vent into
the indoor space which can lead to severe injury or
death.
WARNING
Recommended system pressure is 17.5 psig. Adjust
expansion tank before filling system.
NOTICE
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