Specifications

SCF-050 Manual
24
Control Board Features
The Control Board controls all functions of
the furnace by monitoring sensors that are in
the system. These sensors serve 2 purposes.
a. General Operation of the Furnace.
b. Safety Features, to shut the unit
down in the event the sensors detect
a problem in the unit.
The Control Board also has Diagnostic
Capabilities to help in diagnosing 3 areas in
the furnace. These areas are:
1. High Temperature Limit.
2. Proof of Fire Sensor
3. Vacuum in the Firebox
A closer look at the Control Board to the
right in figure 13 will explain how the board
works. There are five buttons labeled 1
through 5, a slide switch labeled 6 and a
LED Light bar with 5 Heat Settings. The
LED Light bar is also used during the
Diagnostic process, see page 27 for more
details.
The buttons on the board function as
follows: (Refer to Figure13. The touch pad
buttons are labeled with the white numbers
1 through 5)
1. The Heat Level button (1) will advance
the setting between level 1 and 5. Once you
reach level 5, it will drop back to level 1.
Each level has a LED light to indicate where
the board is set.
Figure 13