What To Do If A Fault Occurs; Miniature Circuit-Breakers In The Heat Pump; Dimmed Menu Display - IVT Optima 1000 Assembly, Commissioning And Maintenance Manual

What to do if a fault occurs

The control unit Rego 603 has an advanced monitoring system that gives
alarms if anything unforeseen happens in the heat pump. Most alarms are
rectifi ed by you the user and there is never any risk that you can damage
anything in the heat pump when you reset an alarm.
Examples of an alarm:
Info button:
When you press the Info button and turn the menu dial, information is
displayed as well as possible actions to rectify the alarm.
Ackn. button:
When you press the Ackn. button the alarm lamp on the control panel goes
out and the heat pump starts again within 15 minutes if there is a heating
requirement. If the fault has not been rectifi ed the lamp will remain lit.
Should several alarms have occurred on the heat pump, turn the menu dial
clockwise to fi nd out more information about each alarm.

Dimmed menu display

Possible cause 1: Blown fuse in the house's fuse box/distribution
box.
Action: 1. Check the fuses in the house's fuse box.
2. Replace the fuse if necessary. If miniature circuit-
breakers have tripped these are reset by pushing up
the toggle switch.
3. The heat pump automatically returns to its operating
mode 15 minutes after the fault has been rectifi ed.
Possible cause 2: The heat pump's miniature circuit-breaker has
tripped.
Action: 1. Reset the heat pump's miniature circuit-breaker by
pushing up the black toggle switch.
2. The heat pump automatically returns to its operating
mode 15 minutes after the fault has been rectifi ed.

Miniature circuit-breakers in the heat pump

The Optima has a miniature circuit-breaker in the heat pump's electric
cabinet. The electric cabinet should be installed indoors and close to the
wall that backs onto the heat pump outdoors.
Cause
Date when
the alarm
occurred
For technical reasons the heat pump
does not restart until 15 minutes after
a stoppage.
31
What to do if a fault occurs
Time when the alarm occurred
ALARM
Power failure
031020 16:08:15
Info Ackn.
Info Acknowledge
Note
Miniature circuit-breaker