UNTES URTP055 Instructions For Installation, Commisioning, Maintenance And Use page 63

only from the room control unit will not suffice as the high pressure alarm requires manual reset from the
high pressure Switch.
Circuit 2 Low Pressure Alarm: Check the gas pressures of the system and the electrical cable connections
of the low pressure Switch.
Circuit 2 Compressor Thermal Alarm: Check the operative currents of the compressor and the motor
protection switch. Resetting the alarm only from the room control unit will not suffice as the motor
protection switch of the compressor requires manual reset.
Circuit 2 Compressor Suction Temperature Sensor Failure: Check the temperature value taken from the
sensor. Check the electrical cable connections.
ROOF TYPE PACKAGE AIR CONDITIONER UNIT- POL687.70/STD USE OF SCREEN
BUTTON NAME
OK
OK
OK
INFO
INFO
ESC
ALARM
ACTION FUNCTION
Turning right Sliding downwards or increasing inlet value
Turning left Sliding upwards or decreasing inlet value
Pressing for Selecting or confirming
once
Pressing for It opens up HMI password log in page when pressed for
once once on the main screen.
Pressing for It returns to the main screen when pressed for twice on
once another screen than the main screen
Pressing for Cancelling changes, returning to the previous window,
once returning to an upper menu
Pressing for It opens up the window with alarm information.
once
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