TM 10-7310-281-13&P
MODERN BURNER UNIT (MBU)
0003 00
THEORY OF OPERATION
0003 00-2
C
C
Electrical Short. An internal circuit breaker is located in the controller (2). The nominal rating of the
breaker is 15 amps dependant on ambient temperature. Once the breaker has tripped; it can be reset by
turning the power off and eliminating the cause of the short circuit. It will then reset itself in 30 - 60
seconds dependant on ambient temperature. As breakers are typically thermal devices, the point at
which they open and close is dependent on the temperature of the internal components. The breaker is
connected in series with the POWER Button.
Normal Shutdown. The MBU is shut down by pressing the STOP button.
Figure 1-3. MBU Operational Schematic
1
4
28
20
9
3
22
23
7
25
19
26
17
18
24
8
21
15
5
14
13
6
10
11
29
30
27
12
2
