TM 10-6640-215-13 2-2. OPERATOR CONTROLS AND INDICATORS - continued. Table 2-3.  POWER PANEL NO. 2 Control or Indicator Function NOTE Circuit breakers in POWER PANEL NO. 2 are coded A15. A15CB1 Provides 20A circuit protection for the four ECUs. A15CB2 A15CB3 A15CB4 A15CB5 Provides  45A  circuit  protection  for  LOW  PRESSURE BOILER    (steam    generator)    and    WATER    SUPPLY PUMP. A15CB6 Provides 20A circuit protection for AIR COMPRESSOR. A15CB7 Provides 20A circuit protection for WATER CHILLER. A15CB8 Provides 15A circuit protection for WATER PUMP. A15CB9 Provides 15A circuit protection for VACUUM PUMP. A15CB10 Provides   15A   circuit   protection   for   mechanical   room door interlock and lighting. A15CB11 Provides    15A    circuit    protection    for    fume/gum    bath exhaust blowers. A15CB12 Provides 15A circuit protection for UTILITY NO. 1 2-7