Maintenance; Installation - Tech Controllers EU-28 SIGMA User Manual

TECH
temperature starts decreasing, at the threshold of 60
remains in operation mode until the temperature of 62
III. e) Fuse
The regulator is equipped with two 3,15A fuses as a network protection.
Caution: A higher amperage fuse should not be used as it may damage the controller.
IV. Maintenance
Before and during the heating season, the EU-28 SIGMA controller should be checked for
condition of its cables. You should also check if the controller is properly mounted and clean it
if dusty or dirty. Moreover, the earthing parameters of the motors ( of the CH pump, DHW
pump and the fan) should be measured.
Power supply
Maximum power consumption
Ambient temperature
Pump max. output load
Fan max. output load
Temperature measurement accuracy
Sensor thermal resistance
Fuse
V. Installation
Caution: The device should be installed by a qualified person. During installation the device
mustn't be powered! (make sure the plug is disconnected from the power supply!)
Caution: Incorrect connection of the wires may damage the regulator!
C the controller activates the fan and
O
O C is reached.
230V ±10% /50Hz
3,5W
5÷50
0,5A
0,6A
1°C
-30÷99°C
2x 3,15A
10