EN-51
EN
5.3.4.4 Alarms
Register
hex. no.
Register
decimal
Description Format Type
Registers accessible in read-only mode (functions 3 or 4) for integers
Registers accessible in read-only mode (functions 1 or 2) for Booleans
0x515 1301 Maintenance fault summary Boolean 0 or 1
0x516 1302
Supply air fan motor assembly protection detection
alarm
Boolean 0 or 1
0x518 1304 Dirty supply air filter detection alarm Boolean 0 or 1
0x51C 1308 Fire detection alarm Boolean 0 or 1
0x51D 1309 Hydraulic coil internal frost risk detection alarm Boolean 0 or 1
0x51E 1310 Electric heater detection alarm Boolean 0 or 1
0x523 1315
Return air fan motor assembly protection detection
alarm
Boolean 0 or 1
0x524 1316 Clogged supply air filter detection alarm Boolean 0 or 1
0x526 1318 Dirty return air filter detection alarm Boolean 0 or 1
0x527 1319 Clogged return air filter detection alarm Boolean 0 or 1
0x52A 1322 Rotary heat exchanger alarm Boolean 0 or 1
0x52B 1323 Frosted heat exchanger alarm present. Fouling check Boolean 0 or 1
0x52C 1324 Replace clock battery detection alarm Boolean 0 or 1
0x52E 1326 Supply air duct pressure alarm Boolean 0 or 1
0x52F 1327 Return air duct pressure alarm Boolean 0 or 1
0x530 1328 Humidifier detection alarm Boolean 0 or 1
0x533 1331
Frosted heat exchanger alarm present. Operating
temperature too low
Boolean 0 or 1
0x534 1332 B1 pressure sensor fault alarm Boolean 0 or 1
0x535 1333 B2 pressure sensor fault alarm Boolean 0 or 1
0x536 1334 B3 pressure sensor fault alarm Boolean 0 or 1
0x537 1335 B4 pressure sensor fault alarm Boolean 0 or 1
0x538 1336 B5 pressure sensor fault alarm Boolean 0 or 1
0x539 1337 B6 pressure sensor fault alarm Boolean 0 or 1
0x53A 1338 Air quality sensor fault alarm Boolean 0 or 1
0x53B 1339 B8 pressure sensor fault alarm Boolean 0 or 1
0x53C 1340 B9 pressure sensor fault alarm Boolean 0 or 1
0x53D 1341 Hydraulic coil duct frost risk detection alarm Boolean 0 or 1
0x53E 1342 Electric pre-heater alarm Boolean 0 or 1
0x53F 1343 Pump 1 alarm Boolean 0 or 1
0x540 1344 Pump 2 alarm
0 or 1