Ctc Ecoair/Ctc Ecologic - CTC Union EcoAir 105 Installation And Maintenance Manual

For the installation technician
fault messages/ suitable measures
EcoAir is designed to provide reliable service and high comfort and also to have a long service life. Here
are some tips that may be helpful should a breakdown occur.
15.2

CTC EcoAir/CTC Ecologic

If a fault occurs, the fault code is shown in the CTC EcoLogic display. All alarms are acknowledged by
pressing the flashing red warning triangle in the left corner on the control panel.
(NOTE! The incorrect phase positioning alarm can only be acknowledged
by interrupting the electrical supply to CTC EcoLogic
fault messages
High pressure switch alarm
Low pressure switch alarm
Motor protection compressor alarm
Incorrect phase positioning alarm
Outside sensor alarm
Primary flow sensor alarm
ack B4o sensor alarm
Outdoor unit communication fault
Brine incoming sensor alarm
Room sensor alarm
Compr. temp alarm
Low brine temp in alarm
suggestions
If the below suggestion texts flash recurringly, the following tips and advice may help you cancel the text
as well as improve the operation and economy of your heat pump.
<compressor start delay>
If start delay recurs and there are many starts registered in
'stored operating data' Starts/24h st, check that all the
thermostat valves on the radiators are fully open. A thermostat
can be closed in a room where a lower temperature is required,
e.g. bedroom. All other room thermostat valves should be fully
open.
Information texts
NOTE! The following information texts do not refer to faults but
to the current operational status of the heat pump.
Compressor blocked
House heating off Outdoors °C
38
CTC EcoAir
ack B4u sensor alarm
W B5 sensor alarm
VP out sensor alarm
VP in sensor alarm
Return sensor alarm
Hot gas sensor alarm
Brine out sensor alarm
Indoor unit communication fault
High brine temp in alarm
Low brine flow alarm
External block alarm
External control SO (shut off)
Holiday
)
<Low flow rate >
EcoLogic: temperature difference over the
condenser to indicate low flow rate
-20 -10
Outdoor °C
16
14
12
10
8
6
4
2
0
0 10 20