PeerlessBoilers PF-110 Installation, Operation & Maintenance Manual Download

Page: 43 / 70

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. 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.

3. 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 CH thermostat and DHW

tank thermostat to assure that no call for heat.

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, “Standby”.

3. Refer to Section 8, Boiler Control, to set up the

control for the desired operation.

4. Use the ignition sequence, Figure 8.1 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 User

Menu, Status Display. Press the “Menu” key on
the keypad. Choose Status by pressing the “Select
Key”. Use the “

” and “

” key to scroll through

the CH and DHW setpoints. Refer to Appendix B
for the User Menu.

b. Use the System Test Mode in the Installer 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.

a. Drill and tap a 1/8" NPT threaded hole in the

boiler vent pipe within 12" (305 mm) of the boiler
vent connection. (21/64" Drill and 1/8" NPT Pipe
Tap recommended) This is to be used as the
combustion test port for the combustion analyzer.
See Figure 9.1.

b. Using a combustion analyzer with the capability to

read carbon dioxide (CO

) and carbon monoxide

(CO), place the probe into the combustion test
port. See Figure 9.2.

c. Manually set the boiler to Maximum power by

entering the System Test Mode. See Appendix C,
Installer Menu.

START-UP PROCEDURE

9. START-UP PROCEDURE

Figure 9.1: Drill and Tap Combustion Test Port