PEERLESS PureFire PF-200 Installation, Operation & Maintenance Manual page 39

7. Convenience Outlet: The convenience outlet is
provided for a condensate pump during operation. It
is not switched with the service switch to allow its use
for lighting during maintenance.
8. Flame Sensor: The flame sensor uses the principal of
flame rectification to sense the burner flame. This is
located on the right side of the heat exchanger front
plate. After ignition, the control also senses flame
through the ignition electrode.
9. Gas Valve: The gas valve is connected through a
special cord and connector. The connector is attached
to the valve with a screw.
10. Ignition Electrode: This electrode is located on the left
side of the heat exchanger front plate. A 10,000 volt
charge is initiated by the control to provide a spark for
lighting the burner. After the burner lights, and no
spark is present, the control uses this electrode as a
second source of flame detection.
11. Combustion Air Fan: The combustion air fan has two
connections. There is a 120 volt power connection (3-
wire) and a low voltage control connection (4-wire).
12. Blocked Vent Switch: This switch is only needed and
used on PF-200/210/300/399 to detect a blockage on
the exhaust vent.
13. P F ® Link Adapter (Green Plug): The adapter is
URE IRE
used by Factory Engineers to review control settings.
14. Burner Plate Switch: This switch (Part #50045) is
used to detect overheating of the burner plate,
primarily caused by broken insulation on the inside of
the burner plate.
ELECTRICAL CONNECTIONS
15. Thermal Fuse: This fuse (Part #54466) is used on the
PF-200/210/300/399 to detect overheating of the back
of the combustion chamber, primarily caused by a
broken target wall insulation panel on the back of the
combustion chamber.
16. Relay Module: This module is used on the
PF-200/210/300/399 to allow circulator pumps with a
maximum draw of 10 Amps each for DHW, CH, and
General to be connected to terminals 17/18, 19/20,
and 21/22 respectively.
NOTICE
Maximum Amp Draw for circulator pumps on
PF-50/80/110/140 is 3 amps TOTAL for wither General
Pump + DHW pump OR General Pump + CH Pump.
NOTICE
IF the fuse blows in the boiler control, a spare fuse
(found in a holder on the control cover) can be used
as a replacement. DIAGNOSE POSSIBLE CAUSES
FOR BLOWN FUSE BEFORE REPLACING. Additional
fuses can be ordered as need from your Peerless
Boiler Distributor (Part #5650). See Figure 10.1 for
location of Boiler Control fuse and spare fuse.
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