Page 35
XC21 SERIES
Outdoor A175 Main
Control LEDs
Solution
Possible
Cause(s)
Condition
icomfort
Touch
t
Thermostat
Display
DS11
Green
Solution
Possible
Cause(s)
Condition
icomfort
Touch
t
Thermostat
Display
DS14 Red
DS11
Green
Solution
Possible
Cause(s)
Condition
icomfort
Touch
t
Thermostat
Display
DS14 Red
OFF
1 Fast
Flash then
Pause
Not Applicable
Heating Low
Capacity
These are codes that show status of operation whether in low stage or high stage,
heating or cooling, defrost or in the EDA mode.
OFF
2 Fast
Flash then
Pause
Not Applicable
Heating High
Capacity
ON
2 Fast
Flash then
Pause
Not Applicable
Defrost
1 Fast
Flash then
Pause
OFF
Not Applicable
Cooling Low
Capacity
2 Fast
Flash then
Pause
OFF
Not Applicable
Cooling High
Capacity
2 Fast
Flash then
Pause
ON
Not Applicable
Dehumidification
Mode
ALERT STATUS
NONE
NONE
Moderate Alert
Code 105
Device
Communication
Failure
icomfort Touch
t
thermostat device is unable to communicate with any other
device on the RSBus. Alarm only occurs if a specific device did communicate
initially after power up and communication was later lost. Possible causes are
lost connection, bus short or open, or other device stop responding.
NONE
NONE
Moderate Alert
Code 120
Unresponsive
Device
Message could be sent by any device on RSBus if expected response message
is not received from other device. If sent by indoor or outdoor control, device did
not get expected response (incorrect or no response at all) from active Subnet
controller. If sent by the icomfort Touch
t
thermostat, and did not get the
expected response (incorrect or no response at all) from device. Normally this
indicate device malfunction.
NONE
NONE
Critical Alert
Code 124
Active subnet
controller missing
Device lost connection to icomfort Touch
t
thermostat. Thermostat is sending
heartbeat message in one minute intervals. Device sets this alarm if no
Heartbeat is received for three minutes. Normally this indicate lost connection to
thermostat, or thermostat is not working. Alert will clear after valid subnet
controller message is received.
NONE
NONE
Critical Alert
Code 125
Hardware Failure
Entire or partial system failure. Alert will clear 300 seconds after fault has recov-
ered.
NONE
NONE
Moderate /
Critical Alert
Code 126
Internal control
communication
failure
Internal communication on outdoor control. Alert will clear 300 seconds after
fault has recovered.
NONE
NONE
Critical Alert
Code 131
Corrupted Control
Parameters
System stored configuration data is corrupted. System will not run. Refer to
communicating thermostat for memory corrupt handling.
NONE
NONE
Critical Alert
Code 132
Failed Flash CRC
check.
No operations, A175 control enters boot loader mode. Alarm will clears after
reset.
Содержание XC21
Страница 21: ...Page 21 XC21 SERIES Figure 8 Typical XC21 Wiring ...
Страница 39: ...Page 39 XC21 SERIES Figure 19 High Pressure Switch Operation ...
Страница 40: ...Page 40 506518 01 Figure 20 Low Pressure Switch Operation ...
Страница 41: ...Page 41 XC21 SERIES Figure 21 High Discharge Temperature Sensor Operation ...