IVT GreenlineC User Manual

23
All alarms
Below is a description of the alarms that can appear in the menu display. The description gives an idea
of what the fault is and what you yourself can check and remedy. An alarm can sometimes occur
temporarily so there is never any risk with resetting it. If a fault persists, you should contact the
installer.
The description sometimes refers to a heat pump component. Pages 28 and 29 have details of where to
find the components.
COMPRESSOR MOTOR CUTOUT SWITCH ALARM
To reset the alarm:
Reset the motor cutout by pressing in the black button (position
2) Then press ”Ackn”. NOTE: The lamp goes out even if the
motor cutout has not been reset. (Model C4 have built-in
temperature protection in the compressor that resets automati-
cally when the temperature has reduced).
ALARM (MB1)
Compr. circ. switch
020312 16.08.15
Info Ackn.
Probable causes and actions:
• Sporadic fault or overloading of the power supply.
Action: Reset the motor cutout and wait and see. (Not model C4)
• The current setting of the motor cutout is too low. The compressor’s current intensity varies during
summer/winter operation. (Not model C4)
Action: Contact the installer.
• Contactor or cutout faulty, or loose electrical connections to the compressor.
Action: Contact the installer.
• Compressor faulty.
Action: Contact the installer.
ALARM (MB2)
HTF circ-pump switch
020312 16.08.15
Info Ackn.
HEAT TRANSFER FLUID CIRCULATION PUMP
SWITCH ALARM
To reset the alarm: Press ”Ackn”. (11 kW-models have built-in
motor cutout in the pump that resets automatically after a period
of time. The MB2-alarm is not shown in other models). Note
that the lamp goes out even if the motor cutout has not been
reset.
Probable causes and actions:
• The pump has stopped because of contaminants.
Action: If the pump has an air vent screw it can be loosened and the pump restarted with a screw-
driver.
• Fault in the pump’s electric motor.
Action: Contact the installer.
• Temporary fault.
Action: If the fault persists, contact the installer.

IVT GreenlineC Specifications

General

Brand	IVT
Model	GreenlineC
Category	Heat Pump
Language	English