Riello Array AR 800 - APPENDIX L - FLOWCHARTS

67
SHUTDOWN
67
APPENDIX
APPENDIX
YES
YES
YES
YES
NO
NO
NO
Boiler error
Present?
Boiler Heat
Demand?
Boiler
Temperature
higher than
setpoint
Boiler Temp
higher than
setpoint remove
fast?
Boiler Temp
higher than
setpoint
remove
Boiler Temp
lower than
Setpoint add
fast
Boiler Temp
lower than
Setpoint add
Air damper
open?
First module
active?
Post pump
ready
Locking
error?
Boiler in
stand-by
Locking error
Blocking
error
Clear demand Remove all
active modules
Turn First module on
immediately
Remove
module fast
Hold off
demand
Open Air
damper
Remove
module
Add module
fast
Power
Balancing
Add module
Start boiler
pump
Calculate
boiler
setpoint
Stop boiler
pump
YES
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
See the flow of Add
module of how a
module is added
*
YES
NO
NO
NO
MODULE CASCADE (STAND-ALONE BOILER)