Installation guide

1BHFt%3*45&&.7BQPSMPHJD 3 Installation and Operation Manual
Troubleshooting guide
Table 86-1:
Vapor-logic
3 troubleshooting guide
Problem Possible cause Action
Green power indicator light is off t /PDPOUSPMWPMUBHF t $IFDLGPSQSPQFSTVQQMZWPMUBHF
t )FBUFSGVTFTPQFO t $IFDLIFBUFSGVTFTGPSWPMUBHFQSFTFOUBUUSBOTGPSNFS
t 5SBOTGPSNFSTFDPOEBSZDJSDVJU
breaker tripped
t $IFDLGPSXJSJOHTIPSUTSFTFUCSFBLFS
/PSFNPUFGBVMUJOEJDBUJPO t 'JFMEXJSJOHOPUJOTUBMMFE t 1SPWJEFmFMEXJSJOHUPBSFNPUFGBVMUJOEJDBUPSGSPN
Vapor-logic
3 terminal block J22 (see Pages 11 and 14).
t 'JFMETVQQMJFESFNPUFGBVMU
indicator lamp is burned out.
t $IFDLJGMBNQCZPUIFSTJTCVSOFEPVUSFQMBDFJGOFFEFE
t 3FNPUFGBVMU7BQPSMPHJD
3 relay is
not switching.
t $IFDLSFMBZDPOUJOVJUZ7BQPSMPHJD 3 terminal J22) for
contact closure (see Page 11).
/PSFBEBCMFJOGPSNBUJPOPOLFZQBE
display
t /PQPXFSPSJODPSSFDUWPMUBHFUP
Vapor-logic
3 board
t $IFDLNBJOQPXFSTVQQMZ
t 3FTFUDPOUSPMUSBOTGPSNFSDJSDVJUCSFBLFSJGUSJQQFE
t3FTFUUIFSNBMDVUPVUJGUSJQQFE
t .PEVMBSDPNNVOJDBUJPODBCMFJT
disconnected.
t $POOFDUNPEVMBSDBCMF
Transmitter faults/humidistat faults
t )VNJEJUZUSBOTNJUUFSGBVMU3)
Trans Fault)
t %FXQPJOUUSBOTNJUUFSGBVMU%1
Trans Fault)
t 7"7IVNJEJUZUSBOTNJUUFSGBVMU
(VAV Trans Flt)
t 5FNQDPNQUSBOTNJUUFS
fault (Temp Trans Flt)
xreftag
t 0QFOTIPSUFEPSJODPSSFDUXJSJOH
of transmitter humidistat
t 4JHOBMJTJODPSSFDUPVUPGSBOHFPS
miswired.
t (SPVOEMPPQ
t $POUSPMTJHOBMFYDFFEFEUIFSBOHF
limits. Correct control signals are 4
to 20 mA, 0 to 135 ohms, or 0 to 15
VDC
t $IFDL%$TVQQMZWPMUBHFUFSNJOBMT
 ¦3)USBOTNJUUFSUFSNJOBM7%$UFSNJOBM(/%
 ¦%FXQPJOUUSBOTNJUUFSUFSNJOBM7%$UFSNJOBM
(/%
 ¦7"7IVNJEJUZUSBOTNJUUFSUFSNJOBM7%$UFSNJOBM
(/%
 ¦5FNQDPNQUSBOTNJUUFSUFSNJOBM7%$UFSNJOBM
(/%
 ¦)VNJEJTUBUUFSNJOBM7%$UFSNJOBM(/%
t *GUIFSFJTOPPVUQVUUPN"SFQMBDFUSBOTNJUUFS
Transmitter by others may not be compatible. Consult
DRI-STEEM.
t *TPMBUJPODPOUSPMCPBSECZPUIFSTNBZOPUCFDPNQBUJCMF
Consult DRI-STEEM.
t 3FDBMJCSBUFJGUIFSFJTBDBMJCSBUJPOFSSPS/PSNBMSBOHF
4 to 20 mA = 0 to 100% RH; 12 mA = 50% RH
t .FBTVSFGPSOPSNBMUP7%$SBOHFPODPOUSPM3)
USBOTNJUUFSPSUPN"CZPUIFSTUFSNJOBM
terminal 23–.
More on next page ▶
Green power light
xreftag
/PSFNPUF
xreftag
xreftag
xreftag
VL3_IOM.pdf 90 11/19/2009 9:11:16 AM