York DHP36CSB21S - Page 49

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Analysis or processing of some of the malfunction displays:
1. Compressor discharge protection
3RVVLEOH
UHDVRQVVKRUWDJHRIUHIULJHUDQWEORFNDJHRIDLU¿OWHUSRRUYHQWLODWLRQRUDLUÀRZVKRUWSDVVIRUFRQGHQVHUWKHV\VWHPKDV
QRQFRQGHQVLQJJDVVXFKDVDLUZDWHUHWFEORFNDJHRIFDSLOODU\DVV\LQFOXGLQJ¿OWHUOHDNDJHLQVLGHIRXUZD\YDOYHFDXVHVLQFRUUHFW
RSHUDWLRQPDOIXQFWLRQRIFRPSUHVVRUPDOIXQFWLRQRISURWHFWLRQUHOD\PDOIXQFWLRQRIGLVFKDUJHVHQVRURXWGRRUWHPSHUDWXUHWRR
KLJK
3URFHVVLQJPHWKRGRHIHUWRWKHPDOIXQFWLRQDQDO\VLVLQWKHDERYHVHFWLRQ
2. Low voltage overcurrent protection
3RVVLEOHUHDVRQ6XGGHQGURSRIVXSSO\YROWDJH
3.
Communication malfunction
3URFHVVLQJPHWKRG&KHFNLIFRPPXQLFDWLRQVLJQDOFDEOHLVFRQQHFWHGUHOLDEO\
4. Sensor open or short circuit
3URFHVVLQJPHWKRG&KHFNZKHWKHU sHQVRULVQRUPDOFRQQHFWHGZLWKWKHFRUUHVSRQGLQJSRVLWLRQRQWKHFRQWUROOHUDQGLIGDPDJHRI
OHDGZLUHLVIRXQG
5.
Compressor overload protection
3RVVLEOHUHDVRQVLQVXIILFLHQWRUWRRPXFKUHIULJUDQWEORFNDJHRI FDSLOODU\DQGLQFUHDVHRIVXFWLRQWHPSLPSURSHUUXQQLQJRI
FRPSUHVVRUEXUQLQJLQRUVWXFNRIEHDULQJGDPDJHRIGLVFKDUJHYDOYHPDOIXQFWLRQRISURWHFWRU
3URFHVVLQJPHWKRGDGMXVWUHIULJHUDQWDPRXQWUHSODFHWKHFDSLOODU\UHSODFHWKHFRPSUHVVRUXVHXQLYHUVDOPHWHUWRFKHFNLIWKH
FRQWDFWRURIFRPSUHVVRULV¿QHZKHQLWLVQRWRYHUKHDWHGLIQRWUHSODFHWKHSURWHFWRU
6.
System malfunction
2YHUORDGSURWHFWLRQ:KHQWXEHWHPSHUDWXUH&KHFNWKHWHPSHUDWXUHRIRXWGRRUKHDWH[FKDQJHUZKHQFRROLQJDQGFKHFNWKH
WHPSHUDWXUHRILQGRRUKHDWH[FKDQJHUZKHQKHDWLQJLVWRRKLJKSURWHFWLRQZLOOEH DFWLYDWHG
3RVVLEOHUHDVRQV2XWGRRUWHPSHUDWXUHLVWRRKLJKZKHQFRROLQJLQVXI¿FLHQWRXWGRRUDLUFLUFXODWLRQUHIULJHUDQWÀRZPDOIXQFWLRQ
3OHDVHUHIHUWRWKHPDOIXQFWLRQDQDO\VLVLQWKHSUHYLRXVVHFWLRQIRUKDQGOLQJPHWKRG
7. IPM module protection
3URFHVVLQJPHWKRG2QFHWKHPRGXOHPDOIXQFWLRQKDSSHQVLILWSHUVLVWVIRUDORQJWLPHDQGFDQQRWEHVHOIFDQFHOHGFXWRIIWKH
SRZHUDQGWXUQRIIWKHXQLW. ThenUHHQHUJL]HWKHXQLWDJDLQDIWHUDERXWPLQ $IWHUUHSHDWLQJWKHSURFHGXUHVHYHUalWLPHVLI
WKHPDOIXQFWLRQVWLOOH[LVWVUHSODFHWKHPRGXOH