OSTBERG HERU 70 K EC, Assembly And Installation Instructions Manual

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This meny displayes triggered alarms.
View mode 1 shows alarm and
View mode 2 shows what kind of alarm.
Press in order to go forward from the Main Menu and to view status.
When alerting a dialogue box for the alarm is shown in the Main Menu and the display will flash.
“
View alarms ” is shown and the possibility for equalization is given.
Press to see the cause of alarm in Submenu. Control the cause and remedy the alarm.
Press to ” Clear all ” and than .
Current alarm is viewed. When ”Sensor open” and ”Sensor shorted” press ” Show ”
to view which sensor GT 1-8 is alerting.
See Control diagrams on page 48.
In order to return to the previous pages press .
“ALARMS” MENU (DISPLAYED ONLY IF AN ALARM IS TRIGGERED)
In the ”Power On/Off” Menu you have the possibility of turning off the unit via the wireless control unit.
NB! The unit must be currentless during service and maintenance.
Press in order to go forward from the Main Menu. Press in order to choose on/off of the unit.
When ”On” is displayed in the center of the display, the unit is on. When ”Off” is displayed the unit is off.
“POWER ON/OFF” MENU
Alarms is shown for:
• ”Fire alarm” • ”Sensor open” • ”Sensor shorted” • ”Overheating” • ”Freeze alarm” • ”Supply temp. low”
• ”Rotor temp. low” • ”Rotor failure” • ”Filter” • ”Filter timer” • ”Supply fan alarm” • ”Exhaust fan alarm”
! Filtertimer
Reset
To avoid condensation in the unit during the cold season
the unit should
not be turned off for a longer period.
Power On/Off
Settings
Power On/Off
Power On/Off
When alarm for Filter timer is triggered it can be equalized with Reset.
A reminder to change filter comes in a seven-day interval.
To restart the timer see ”Service Menu Alarm” page 59.
1270421_utg2_HERU_K_SV_EN.pdf 54 2018-03-12 10:00:20