Edge [ii] Controller Operation Manual
SECTION 10 – STARTUP, STATUS, FAULT MESSAGES
OMM-139_E • 8/25/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 191 of 196
TABLE 10-1: Edge Controller Fault Messages
Delta-T temperature is out of user defined delta
limit.
The unit shut down due to exceeding allowable
Delta-T value.
Back Up Manager is not Compatible
The unit designated as the Backup Manager is
not compatible with Manager functionality.
IO Board Communication Failed
I/O board communication has failed.
Space Heating side swing valve failed
Domestic hot water side swing valve failed
No communication from the Building
Automation system
BST Warm Weather Shutdown
BST warm weather shutdown warning
Standalone warm weather shutdown warning
DHW Header Temp BAS Comm Fault
BAS failed to update the DHW temperature
periodically
BST Header Temp BAS Comm Fault
BAS failed to update the BST header
temperature periodically
Supply Return Temp BAS Comm Fault
BAS failed to update the supply return
temperature periodically
Outdoor Temp BAS Comm Fault
BAS failed to update the outdoor temperature
periodically
BST Return Sensor Short Warning
BST return sensor is shorted. Check the wirings.
BST Return Sensor Open Warning
BST return sensor is disconnected
DHW Header Network Sensor Fault
DHW header network sensor temperature is out
of range.
DHW Header Network Comm Fault
No communication response from the DHW
header network sensor
Supply Return Network Sensor Fault
Supply Return Network Sensor temperature is
out of range.
Supply Return Network Comm Fault
No communication response from the supply
return network sensor
10.2 O
2
TRIM MESSAGES
The Edge Controller displays the following O
2
Trim Status and Warning messages when
appropriate.
TABLE 10-2: Edge Controller O2 Trim Messages
O
2
auto-calibration purge has started
O2 Auto Calibration In Progress
O
2
auto-calibration is underway
O
2
auto-calibration has completed