EQJW 125: Heating controller
Faults
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© Fr. Sauter Ltd.
53
Error on TF and TR (Err1 and Err3) provides a value of 5 for the device
status.
Err1
1
Err3
4
Total (= value of device status)
5
7.2
Reset functions
It is possible to reset the EQJW 125 to the ex-works setting. To do this, go to
the SERVice level (see Section 3.2) and set parameter SP04 to:
1. Reset SERVice and communication parameters
2. Reset switching commands
3. Reset SERVice and communication parameters and switching
commands
7.3
Actions to deal with faulty temperature readings
The 'Sensor fault' symbol (see chapter 2.5) appears if there is a short-circuit
or an interruption in sensor supply lines. The following list states how the
controller behaves if individual sensors fail.
If the outdoor sensor is faulty, a flow temperature setpoint of 50°C is
operated, or if the maximum flow temperature (set at parameter SP16) is less
than 50°C, the maximum flow temperature is operated.
If the flow temperature sensor is faulty, the valve assumes the 30% valve
position.
If the room sensor fails, the controller operates according to the settings for
operation without a room sensor.
Example
Outdoor
temperature sensor
Flow temperature
sensor
Room temperature
sensor
Содержание Equitherm EQJW 125
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Страница 60: ...EQJW 125 Heating controller Resistance values for the Ni1000 sensors 7001029003 A Fr Sauter Ltd 59 ...
Страница 62: ...EQJW 125 Heating controller Dimension drawing 7001029003 A Fr Sauter Ltd 61 ...