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4. Errors
Error Code
Description
Remedy
Short Circuit Sensor
Replace sensor
(or very low resistance)
Open Circuit Sensor
Connect sensor cable or
replace sensor
Low Temperature
Verify heating system &
Threshold Alarm
sensor fixation
High Temperature
1
Verify heating system
Threshold Alarm
Output Voltage Error
2
Relay or triac malfunction /
replace unit
Supply below 207 Vac.
3
Verify supply voltage
1
Detection of this error is disabled if High Temperature Alarm is set off.
2
Detection of this error is disabled in Voltage Free Mode.
3
Unit is not active when supply voltage is below approx. 190 Vac.
All alarms are on the same alarm relay.
An alarm will clear automatically as soon as the error condition is gone.
There is no need to reset; all settings are maintained.
If multiple alarms are active, the alarms are shown with the following priority:
(Highest),
,
,
,
,
(Lowest)
Testing, commissioning and maintenance
Test heating cable when thermostat installation is complete as directed in the
Tyco Thermal Controls instructions applicable for the heating cable. Fill out
the commisioning sheet (page 39).
Maintain thermostat during normal plant maintenance.
Check: Mounting is firm
Exposed sensor cable is not damaged
Glands are tightened firmly
Thermostat operation is correct (no error code displayed)
Thermostat settings suits application
Lid is closed firmly.
Cladding is sealed with sealant.
Ray C F030793 RAYSTAT-Contr-N
18-09-2003, 10:14
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