nilan Compact P User Manual page 35

114 TColdRet Open
115 TColdRet Short
116 Tevap Open
117 Tevap Short
122 Tmixing Open
123 Tmixing Short
124 SHW T-sensor Open
125 SHW T-sensor Short
126 SHW anode
127 TPres open
128 TPres short
200 LOM309 missing
600 Hi Pres
601 Low pres.
602 Leakage
603 Hi press
604 Frost protection
T14 Cold return temperature open connec-
tion.
T14 Cold return temperature short-cir-
cuited.
T23 Evaporator sensor temperature open
connection.
T23 Evaporator sensor temperature short-
circuited.
Tmixing temperature sensor open connec-
tion.
Tmixing temperature sensor shortcir-
cuited.
T21 Temperature sensor in SHW opne con-
nection.
T21 Temperature sensor in SHW shortcir-
cuited.
SHW anode failure.
T35 Temprerature sensor Pressure open
connection.
T35 Temperature sensor Pressure short-
circuited.
Controller is not Extended version
High pressure switch active.
Low pressure switch active.
Low pressure in brine - Brine pressure
switch active.
High pressure switch repeatedly active.
Temperature too low (state freeze protect)
Check cable and connectors.
Measure the resistance in the temperature
sensor.
Check cable and connectors.
Measure the resistance in the temperature
sensor.
Check cable and connectors.
Measure the resistance in the temperature
sensor.
Check cable and connectors.
Measure the resistance in the temperature
sensor.
Check cable and connectors.
Measure the resistance in the temperature
sensor.
Check cable and connectors.
Measure the resistance in the temperature
sensor.
Check cable and connectors.
Measure the resistance in the temperature
sensor.
Check cable and connectors.
Measure the resistance in the temperature
sensor.
The anode must be changed.
Check cable and connectors.
Measure the resistance in the temperature
sensor.
Check cable and connectors.
Measure the resistance in the temperature
sensor.
Functionality of Extended version is
selected.
Exchange controller to the Extended ver-
sion or disable use of this functionality.
Check hot side pump/overflow valve on
high temperature side. Check if there is air
in the hot side water. Check if filter is
blocked on the hot side.
The unit restarts when the pressure drops
below high pressure switch lowlimit again.
After 3rd cut-out the alarm must be
acknowledged to start the unit again.
Check refrigerant charge, expansion valve
and evaporator for ice. Check fan for
obstacles on an air to water evaporator.
The alarm must be acknowledged to start
the unit again.
Leakage check of the brine system.
The alarm must be acknowledged to start
the unit again.
Check hot side pump/overflow valve on
high temperature side.
The alarm must be acknowledged to start
the unit again.
Heat pump and electrical heater running
full capacity.
Check that setting are not turned off.
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