IVT GreenlineC User Manual

26
ALARM, HIGH RETURN TO THE HEAT PUMP
To reset the alarm: The alarm resets itself and the heat pump
starts automatically when the temperature has dropped.
ALARM (GT9)
High return HP
020312 16.08.15
Info Ackn.
Probable causes and actions:
The heat pump has a sensor that stops the heat pump for safety reasons when the return temperature is too
high, about 48°C.
• The temp. incr/decr knob is set so high that the heating system return temperature goes too high.
Action: Reduce the temp. setting.
• The hot water temperature is set too high.
Action: Contact the installer.
• The radiator or underfloor heating system valves are closed.
Action: Open the valves.
• The flow across the heat pump is greater than the flow in the heating system.
Action: Reduce the speed of the circulation pump in the heat pump or increase the speed of the
mainpump in the heating system. Contact the installer.
SENSOR ALARM
To reset the alarm: The alarm resets itself and the heat pump
starts automatically when the fault has been corrected.
ALARM (GT1)
Sensor return rad.
020312 16.08.15
Info Ackn.
Probable causes and actions:
Alarm if a sensor fault can be indicated for all sensors that are connected to the heat pump. The example
shows the alarm for the Return radiator, GT1 sensor. The principle is the same for all sensor alarms.
• Temporary fault.
Action: Wait and see.
• Short circuit or disconnected to sensor.
Action: If you have an instrument that can measure resistance, you can check the resistance of the
circuit and compare with the table for sensors in Technical spec. If not, contact the installer.
• Faulty sensor or faulty connection.
Action: Contact the installer.
HEAT TRANSFER FLUID SYSTEM OUT MAX ALARM
To reset the alarm: The alarm resets itself and the heat pump
starts automatically when the temperature has dropped.
ALARM (GT8)
Heat tran. fluid out
020312 16.08.15
Info Ackn.
Probable causes and actions:
The heat pump has a sensor that stops the pump for safety reasons when the outgoing temperature is too
high at around 75
o
C.
• Not enough flow over the heat pump.
Action: Check that the circulation pump has not stopped and that a valve in the system is not closed.
• Hot side particle filter clogged.
Action: Check the filter and clean if required.

IVT GreenlineC Specifications

General

Brand	IVT
Model	GreenlineC
Category	Heat Pump
Language	English