User’s manual
34
IX.
Maintenance
Before and during the heating season,
ST-550zPID
controller should be checked for condition of its
cables. The user should also check if the controller is properly mounted and clean it if dusty or dirty. It
is advisable to measure earthing parameters for the motors (CH pump, DHW pump, fan, feeder and
circulating pump).
No
Specification
Unit
1
Supply voltage
V
230V/50Hz +/-10%
2
Maximum power consumption
W
11
3
Ambient temperature
O
C
5÷
50
4
Maximum output load of pumps: CH; DHW; Circulating; Valve
A
0,5
5
Output load of fan
A
0,6
6
Output load of fuel feeder
A
2
7
Range of temperature measurement
O
C
0÷90
8
Accuracy of temperature measurement
O
C
1
9
Range of temperature settings
O
C
45÷80
10
Thermal resistance of the sensor
O
C
-25÷90
11
Fuse
A
6,3
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