Thermal Solutions APEX APX425C Installation, Operating And Service Instructions page 135

12
Troubleshooting
Table 12-22: Boiler State
No.
0 Initiate
1 Standby delay
2 Standby
3 Safe Startup
4 Drive Purge
5 Prepurge
6 Drive Lightoff
7 Preignition Test
8 Preignition
9 PFEP (pilot flame establishing period)
10 MFEP (main flame establishing period)
11 Direct Ignition
12 Running
13 Postpurge
14 Lockout
106308-05 - 3/23
(continued)
Figure 12-21: Example Alarm File Contents
Boiler State
APEX Installation, Operating, & Service Instructions
135