Information for the specialist
Control voltage
Control voltage
High limit
thermostat
Optigo
Auxiliary relay
Relay electric
heating
Figure 3-2 Wiring example, high temp. limit. Contactors are drawn inactivated.
N
Noottee!! It is important that the high temperature thermostat is hardwired to disconnect the power to
the heater to ensure that the heating is shut down when the thermostat is activated even if the Opti-
go
Ardo
should be faulty.
Table 3-6 Settings and configuration for electric heating
Feature
Menu path in display
Variable
Note
Overheating
Configuration ►Inputs/
Outputs► Digital inputs ►
Overheated electric heater
Flow guard
Configuration ►Inputs/
Outputs► Digital inputs ► Flow
guard
Alarm
Alarm status
Fast stop on overheating
Fast stop
is an option in Alarm
- Electric heating is overheated
. The function means that the fans will be
immediately stopped when there is an overheating alarm, regardless of the set cool-down time. It is set in
Alarm status
►
Electric heating is overheated
►
Edit
►
Alarm action.
Optigo
Ardo
manual, Rev. A
25 (76)