TECH ST-85 - Assembly; V.a) Cable Connection Diagram for Controller

ST- 85 – USER'S MANUAL
ST-85 Technical Specifications
No. Specification Unit
1
Supply Voltage V 230V/50Hz +/-10%
2
Power consumption W 5
3
Ambient temperature
O
C 5÷50
4
5
Circulation pump outlet load
Fan outlet load
A
A
0,5
0,6
6
Temperature measurement range
O
C 0÷90
7
Measurement accuracy
O
C 1
8
9
Sensor thermal resistance
Fuse insert
O
C
A
-25÷90
3,15
V. Assembly
ATTENTION: all assembly works must only be carried out by qualified
persons. During assembly, the device must be disconnected (make sure the
power cord is unplugged)!
ATTENTION: improper cable connections may damage the regulator!
The regulator may not be operated in a closed-circuit central heating
system. It is necessary to provide for safety valves, pressure valves and a
surge tank in order to prevent water from boiling in the central heating
system.
V.a) Cable Connection Diagram for Controller
Pay special attention to cable connections during assembly. Especially, the
ground wire should be connected properly.
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