1801UDSBD-4E,--EN, Pag. 20/35
Figure 11b - Control panel assy located
on a removable bracket
1) Control relay (ER)
2) Terminal blocks
3) Pressure switch (S3)
4) Electronic burner relay fuse 3.15AF
This heater is equipped with a patented T-CORE
2®
heat exchanger.
Remove any external dirt or dust accumulation. Visually check the heat exchanger for cracks and holes. If a crack or hole is
observed, replace the heat exchanger.
14
HEAT EXCHANGER MAINTENANCE
1
2
3
4
