Adding Water To The Circuit; Diagnostics - Carrier 80AWX Serie Manual Del Usuario

Maintenance

Adding water to the circuit

This operation can be performed by the user.
For safety reason, do not open the indoor or outdoor unit.
The corrected operating pressure is 1 bar; if the pressure is
lower than 1 bar, it is necessary to add water in the circuit.
See Fig. 2 and 3
• open the filling valve
• close the filling valve when the water pressure reaches 1
bar (check the manometer).

Diagnostics

In case of system failure, the alarm icon (
on the user interface.
Failures are identified by a fault code.
Active fault codes will be displayed in sequence, with a
change rate of 1 second.
Error
Item
code
Temperature /
humidity sensor
2
of user interface
in zone 1
3 TWB
4 TC
Domestic
hot water
5
temperature
sensor
Communication
with user
interface
6
(conneted
to W-C-G-Y
terminal blocks)
Communication
with additional
user interface
7 (connected to
Rc-Rh-G2-Y2
terminal blocks)
in zone 1
8 Flowswitch
9 Flowswitch
80AWX- 80AWH
32
) will light up
Failure when
Hydronic module fault codes
Value out of range Room temperature / humidity is not
+ available.
Code 105.0=1 or 4 Related functions are not available.
Value out of range Backup heaters are OFF
Outdoor unit stops
Value out of range Domestic water valve OFF if code
127=1
Value out of range
Booster heater OFF
+
Disinfection function not performed
Code 133=1 or 2
No communication between unit and
interface.
Room temperature and humidity are
Communication
not available if code 105.0=1 or 4 or
lost
105.1=1 or 4.
Unit runs with values stored in
memory
No communication between unit and
Communication interface.
lost Room temperature and humidity are
+ not available in zone 1
Code 105.0=1 Unit runs with values stored in
memory
Water pump is
Outdoor unit, backup heaters,
OFF.
domestic water valve, water pump:
Flowswitch
OFF
detetects flow
Water pump is ON. Outdoor unit, backup heaters,
Flowswitch domestic water valve, water pump:
detects no flow. OFF
Consequences Diagnostics and solutions
Check user interface wiring and
electrical connections
Check sensor, wiring and electrical
connections
Check sensor, wiring and electrical
connections
Check sensor, wiring and electrical
connections
Check wiring and connections
Check wiring and connections
Check setting of code 107.1
Check flowswitch.
Check setting of code 107.0
Check flowswitch, wiring and
electrical connections.
Check floor heating thermal cut off if
connected
If reset is needed, press the red
button and check climatic curve
settings (codes 112 to 118).