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TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
The current temperature is read from
an electronic sensor and processed by
the thermo controller. When the alarm
temperature is exceeded, the fan is shut
off and both pumps begin to run in order
to distribute hot consumption water
throughout the system.
Anti-boil protection.
This protective
function is used only with the water
heater priority mode. For example, when
the water heater setpoint temperature
is 55°C and the boiler temperature rises
to 65°C (so-called priority temperature),
the controller shuts off the fan. If the
boiler temperature reaches 80°C, the
C.H. pump will be activated. If the
temperature continues to rise, the alarm
will be activated at 85°C. Such condition
may appear when the water heater or the
pump is damaged or when the sensor has
been improperly installed. However, if
the temperature drops, the controller will
activate the fan at 63°C and it will remain
in the duty mode maintaining the priority
temperature of 65°C.
Fuse.
The controller has a network
protection WT 3.15 A tube fuse.
ATTENTION: Higher current
ratings may cause damage to the
controller.
12.16. Technical specifications of
controller ST 81
1
Supply voltage
V
230V/50Hz
+/-10%
2
Power consumption
W
5
3
Ambient
temperature
°C
10÷50
4
Circulation pump
outlet load
A
0.5
5
Fan outlet load
A
0.6
6
Temperature
measurement range °C
0÷90
7
Measurement
accuracy
°C
1
8
Temperature
adjustment range
°C
45÷80
9
Sensor thermal
resistance
°C -25÷100
10
Fuse insert
А
3.15
13. WARRANTY TERMS
The warranty terms are described in the
Service booklet included in the supply.
14. TECHNICAL PARAMETERS OF SOLID
FUEL BOILER WBS ACTIVE
14.1. General features
- Electronic control unit controls the
combustion by modulating the fan
speed. Optional control of circulation
pumps for central heating and domestic
hot water (
DHW
).
- Air feed fan optimizes the combustion
and the fuel consumption rate.
- Combustion chamber with large heat
exchanging surface and low chamber
resistance.
- Large firebox door ensures easy loading
even with bigger logs (length of logs up
to 50 cm).
- Ribbed chamber surface and three-
pass flue gas flow for improved heat
exchange.
- Exchangeable metallic ash grate protects
the pipe grid from the flame.
- Burner flange on lower door for fitting
pellet burners (optional)
- Safety devices:
1)
Pressure relief valve 3 bar
2)
Safety heat evacuator
a tap-water-filled
line passes throug the upmost part of
the boiler body. In case of overheating
is triggered open by a thermostatic
valve (not included) t evacuate the heat
off the boiler;
3)
STB - thermostat
;
4)
Air intake flap
;