Watts AERCO Edge [ii] Operation Manual page 189

Edge [ii] Controller Operation Manual
SECTION 10 – STARTUP, STATUS, FAULT MESSAGES
TABLE 10-1: Edge Controller Fault Messages
# FAULT MESSAGE
40 Remote Setpt Signal Fault
41 Outdoor Temp Sensor Fault
42 Outlet Temp Sensor Fault
43 FFWD Temp Sensor Fault
44 High Water Temp
45 Line Voltage Out of Phase
46 Stepper Motor Failure
47 Setpoint Limiting Active
48 Modbus Comm Fault
49 Wait Ignition Retry
50
WaitFault Purge
51 Wait Retry Pause
52 Exhaust Temp Sensor Short
53 Exhaust Temp Sensor Open
54 Warning Exhaust Temp High
55 Exhaust Temp High
56 Inlet Water Temp Sensor Short
57 Inlet Water Temp Sensor Open
58 Warning In Wtr Temp High
59 Warning In Wtr Temp Low
60 Inlet Gas Press Sensor Open
61 Gas Plate Dp Sensor Open
62 O2 Percentage Low
63 O2 Sensor Malfunction
64 Warning O2 Level High
65 Recirc Pump Failure
•
OMM-139_E 8/25/2020
DESCRIPTION
The Remote Setpoint signal is not present or is
out of range.
The temperature measured by the Outdoor Air
Sensor is out of range.
The temperature measured by the Outlet Sensor
is out of range:
•
OUTLET TEMPERATURE display = Sht
Indicates sensor is shorted
•
OUTLET TEMPERATURE display = Opn
indicates sensor is open-circuited
The temperature measured by the Feed Forward
(FFWD) Sensor is out of range.
The temperature measured by the Outlet Sensor
exceeded the Temp Hi Limit setting.
The Line (Hot) and Neutral wires are reversed.
The Stepper Motor failed to move the Air/Fuel
Valve to the desired position.
Outlet temperature crossed the high setpoint
limit. Setpoint limiting feature is active.
A network communication fault
The unit is waiting before retrying to ignite.
Fault while purging.
Pause before retrial for ignition.
The Exhaust Temp Sensor has malfunctioned.
Exhaust Temp Sensor is not connected or
malfunctioned.
The Exhaust temperature is above normal.
The Exhaust Temperature has exceeded 200°F
(93.3°C).
Inlet Water Temp Sensor has
malfunctioned/shorted out.
Inlet Water Temp Sensor is not connected or
malfunctioned.
Warning: Inlet water temperature is above
normal.
Warning: Inlet water temperature is below
normal.
Inlet Gas Pressure Sensor is not connected or
malfunctioned.
Gas Plate Dp Sensor is not connected or
malfunctioned.
The O2 % has gone below 2% for more than 30
seconds
Indicates O
than 24% for more than 10 seconds.
The O is above normal operating limits.
2
The recirculation pump has failed.
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
Levels are less than -4% or more
2
TYPE
Fault
Fault
Fault
Fault
Fault
Fault, Manual
Reset
Fault, Manual
Reset
Fault
Fault
Message
Message
Message
Warning
Warning
Warning
Fault, Manual
Reset
Warning
Warning
Warning
Warning
Fault
Fault
Fault
Fault
Warning
Fault, Manual
Reset
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