ST – 450 z PID
VI.
Maintenance
The
ST-450zPID
controller must be checked for the technical condition of its
wires before and during the heating season. You should also check the
mounting of the controller, clean it of dust and other contamination.
Furthermore, you should also measure the effectiveness of the grounding of the
motors (central heating pump, hot water pump and blower).
TECHNICAL SPECIFICATIONS
Pos Specifications
Unit
1
Power supply
V
230V/50Hz +/-10%
2
Power consumption
W
11
3
Ambient temperature
O
C
5÷
50
4
Max. load on circulating pump outputs
A
0,5
5
Max. load on fan output
A
0,6
6
Max. load on feeder output
A
2
7
8
9
10
11
Temperature measurement range
Measurement accuracy
Adjustable temperature range
Temperature resistance of sensors
Fuse element
O
C
O
C
O
C
O
C
A
0÷90
1
45÷80
-25÷90
6,3
VII.
Assembly
NOTE:
Installation should be performed by a properly qualified
technician!
Do not
install the unit with the power on (make sure that the
plug is disconnected from the mains)!
NOTE:
Incorrect wiring may damage the controller!
The controller cannot be operated in a closed central heating system. The
installation must include safety valves, pressure valves and an equalizing tank
to protect the boiler from water boiling in the central heating system.
VII.1.
Controller wiring connection diagram
Particular attention should be paid when making cable connections with
the controller. Especially, the grounding conductor should be connected
properly.
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