1BHF t %3*45&&. 7BQPSMPHJD *OTUBMMBUJPO BOE 0QFSBUJPO .BOVBM
Operation
Table 84-1:
Troubleshooting guide (continued)
Humidit
y
set
p
o
int
issues
Issue
Possible causes
Actions
Humidity above set point.
t )JHIFOUFSJOHSFMBUJWFIVNJEJUZ
t %FIVNJEJGZ
t 6OJUPWFSTJ[FE
t $POTVMU%3*45&&.
t 3FEVDFEBJSGMPX
t $IFDLGBOTEBNQFST7"7TZTUFNTFUD
t *NQSPQFSMZMPDBUFEIVNJEJTUBUPSIVNJEJUZ
transmitters
t 3FMPDBUFVTJOHHVJEFMJOFTJO"QQFOEJYTFDUJPOPGUIJTNBOVBM
t .BMGVODUJPOJOHDPOUSPMT
t $IFDLGPSJODPSSFDUTVQQMZWPMUBHF
t $IFDLGPSJODPSSFDUDPOUSPMTJHOBM
t $IFDLGPSJNQSPQFSXJSJOHIPPLVQ
t *GIVNJEJUZDPOUSPMMFSPSUSBOTNJUUFSBSFPVUPGDBMJCSBUJPOPS
malfunctioning, repair or recalibrate.
t $IFDLJG443DPOUBDUPSTIPSUFE3FQBJSPSSFQMBDFBTOFFEFE
t $POUBDUPS443JTTUVDLDMPTFE
t 3FNPWFQPXFSGSPNIVNJEJGJFSJNNFEJBUFMZ$POUBDU%3*45&&.
Hunting (humidity swings
above and below desired set
point)
t .BMGVODUJPOJOHDPOUSPMTZTUFN
t *GUIFSFJTBGBVMUZPSJOBDDVSBUFIVNJEJUZDPOUSPMMFSPSUSBOTNJUUFS
repair or replace.
t $IFDLGPSQSPQFS7BQPSMPHJD
control settings: RH set point, high
limit set point, cycle rate, PID tuning, etc.
t 3FMPDBUFQPPSMZMPDBUFEDPOUSPMDPNQPOFOUT4FFIVNJEJUZDPOUSPM
placement information in Appendix B recommendations.
t 0O443VOJUT$POUSPMXJSFBOEQPXFSXJSFTNVTUCFQIZTJDBMMZ
separated from each other. If they are not, an induced control
voltage can occur, causing erratic operation.
t 7FSJGZUIBULFZQBEEJTQMBZNPEVMBSDBCMFJTJTPMBUFEGSPNQPXFS
wiring.
t "JSWPMVNFWBSJFTSBQJEMZ
t 4UBCJMJ[F
t "JSUFNQFSBUVSFJTWBSZJOHSBQJEMZ
t 4UBCJMJ[FUP' $
t1SPQPSUJPOBMCBOEJTUPPTNBMMBOEPSJOUFHSBM
gain (Ki) is too large
t *G3)TXJOHTPVUTJEF1*%CBOEJODSFBTF1*%CBOEVTJOHUIF4FUVQ
menu.
t %FDSFBTFJOUFHSBMHBJO ,JVTJOHUIF4FU6QNFOV
t 0OPGGDPOUSPMJTOPUBEFRVBUF
t *GDPOUSPMMJOHUIFIVNJEJGJFSXJUIBOPOPGGTJHOBMDPOTJEFS
changing to controlling with a modulating signal.
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Содержание Vapor-logic 4
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