Watts AERCO Edge [ii] - O2 TRIM MESSAGES

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
#
FAULT MESSAGE
DESCRIPTION
TYPE
99
Delta-T Activated
Delta-T temperature is out of user defined delta
limit.
Warning
100
Delta-T Shutdown
The unit shut down due to exceeding allowable
Delta-T value.
Warning
101
Back Up Manager is not Compatible
The unit designated as the Backup Manager is
not compatible with Manager functionality.
Warning
102
IO Board Communication Failed
I/O board communication has failed.
Warning
103
SH Swing Valve Fault
Space Heating side swing valve failed
Warning
104
DHW Swing Valve Fault
Domestic hot water side swing valve failed
Warning
105
No BAS Communication
No communication from the Building
Automation system
Warning
106
BST Warm Weather Shutdown
BST warm weather shutdown warning
Warning
107
Warm Weather Shutdown
Standalone warm weather shutdown warning
Warning
108
DHW Header Temp BAS Comm Fault
BAS failed to update the DHW temperature
periodically
Warning
109
BST Header Temp BAS Comm Fault
BAS failed to update the BST header
temperature periodically
Warning
110
Supply Return Temp BAS Comm Fault
BAS failed to update the supply return
temperature periodically
Warning
111
Outdoor Temp BAS Comm Fault
BAS failed to update the outdoor temperature
periodically
Warning
112
BST Return Sensor Short Warning
BST return sensor is shorted. Check the wirings.
Warning
113
BST Return Sensor Open Warning
BST return sensor is disconnected
Warning
114
DHW Header Network Sensor Fault
DHW header network sensor temperature is out
of range.
Warning
115
DHW Header Network Comm Fault
No communication response from the DHW
header network sensor
Warning
116
Supply Return Network Sensor Fault
Supply Return Network Sensor temperature is
out of range.
Warning
117
Supply Return Network Comm Fault
No communication response from the supply
return network sensor
Warning
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
FAULT MESSAGE
Type
MESSAGE DESCRIPTION
O2 Cal Purge
Status
O
2
auto-calibration purge has started
O2 Auto Calibration In Progress
Status
O
2
auto-calibration is underway
Autocal Finished
Status
O
2
auto-calibration has completed