Samson 5312-2, Mounting And Operating Instructions

Page: 25 / 44

EB 5207 EN 9-1
Malfunctions
9 Malfunctions
Î
Troubleshooting (see Table 9-1).
Contact SAMSON's After-sales Service for malfunctions not listed in the table.
Table 9-1: Troubleshooting
Error Possible reasons Recommended action
No switching in the frost
protection thermostat
Thermostat not correctly attached
Î
Check attachment.
Î
Check contact to the
medium.
Thermostat not correctly connected
Î
Check electrical
connection.
Capillary ruptured
Î
Replace thermostat.
Temperature above set point
Î
Find reason for why the
temperature is lower.
9.1 Emergency action
The frost protection thermostat reacts after the measured temperature in the plant falls below
the adjusted set point (see the 'Design and principle of operation' section). Usually, this
action causes a valve in the plant to be closed by a safety device to prevent the temperature
falling below a certain temperature.
Plant operators are responsible for emergency action to be taken in the plant.
Emergency action in the event of valve failure is described in the associated valve documen -
tation.
Note
Tip