EngA DJM3

A DJM3
IOM-17 25 of 27 Mar 99 R3
FANOPERATIONFLOWCHART






 MainSupplypower‘ON’
 ServiceSwitch‘ON’
 Firealarmcontact‘CLOSED’
 24VaconterminalsT1,T2
 24VaconterminalsFS,HS
Heatcall
light’ON’?
FanStarts
after30s?

Normal
Operation
FanStarts
after30s?

24Vacon
terminal
‘
K
’
?
Equipmentin
Nightmode,
fanoperation
isintermittent.

24Vacon
terminal
‘FS’?
Restorepower
toterminal
‘FS’.
Ifburnerfiresfor
30sbutfandoes
notstart

FanStarts
after30s?

24Vacon
terminal
‘SA’
ProblemExternalto
DJM3,checkother
interrupting
contacts

FaultyDJM3
Y
ES
YES
YES
NO
NO
YES
YES
NO
YES
NO
NO
NO
NO
YES