Riello Array AR 3000 User Manual

50
SHUTDOWN
50
APPENDIX
201 CC_LOSS_BOILER_COMM
Cascade System: Leading
boiler lost communication
with one of the depending
boilers
a- Check interconnecting
wiring between boilers.
b- Make sure all boilers are
powered on.
c- Make sure that Parameter
167 set to proper number of
boilers.
d- Whichever boiler(s) loses
communication with the
Master Boiler will enter boiler
level emergency mode.
e- Check the position of
the S1 switches on the
managing boiler (on) and on
the dependent boiler (off)
to make sure they are set
properly.
202 OUTDOOR_WRONG
Outdoor sensor is open or
shorted
203 T_SYSTEM_WRONG
T_System sensor is open or
shorted
a- Check connections of the
boiler mounted sensor.
b- This will cause Module
Emergency Mode to activate
on that particular boiler.
c- Remaining cascade will
continue to operate as
normal.
d- Check the value of the
reading of this sensor on the
info screen.
204 T_CASCADE_WRONG
T_Cascade sensor is open or
shorted
a- Check connections of the
System sensor mounted in
the header.
b- This will cause Boiler level
emergency mode to activate
on all boilers in the cascade.
c- Check the value of the
reading of this sensor on the
info screen.
205 MAX_HIGH_LIMIT_WARNING
Too many physical high
limit test attempts within 24
hours.
In order to check if the control is functioning properly the following readings can be taken:
AL Link
24VDC (with S1 Switch On and open circuit). Voltage is variable while in normal operation depending on data stream.
Pressure Switches
(ie: Gas Pressure, Water Pressure, Flue Pressure, etc) 3.3VDC while circuit is open.
Safety Switch
(High Limit) 24VDC while open
Flow Meter
5VDC at all times

Riello Array AR 3000 Specifications

General

Brand	Riello
Model	Array AR 3000
Category	Boiler
Language	English