Fig. 2: Alarm example
Example of alarm messages:
Message Meaning / Class Corrective action
High pressure The heating circuit is the heat
pump's high pressure circuit.
Class A
Check and, if necessary, rectify the level of the cir-
cuit. Acknowledge the alarm as described below.
Low pressure The coolant circuit is the heat
pump's low pressure circuit.
Class A
Check the circuit's level. Acknowledge the alarm as
described below.
Contact a service technician if the alarm reoccurs.
All other messag-
es
Acknowledge the alarm as described below. If the alarm remains or reoccurs, contact a
service technician.
Acknowledging alarms
Press
to reset all alarms.
Contact the installer if alarms are persisting and/or reoccurring.
7.2 Checking the brine circuit pressure
The brine circuit must be filled with the correct amount of fluid; otherwise the installation may become dam-
aged. Ensure that the system has the necessary pressure, but not above the maximum pressure of 6 bar.
For filling brine, see the commissioning guide.
User Guide Mega
VUJSC302 Thermia Värmepumpar
22