Standard Delivery - Viessmann KOB PYROTEC Technical Manual

Control unit
(cont.)

Standard delivery:

■ Control panel loose; surface powder-coated. Version as per ÖVE/
VDE directives fully wired to terminal strips, fed 3 x 400 V 50 Hz;
control voltage 230 V or 24 V;
– Freely programmable control unit, CE tested
– Motor overload relay for all drives according to the separate price
item
– Inverter for fan motors
– Motor overload relay for boiler pump
■ In the control panel door:
– 4-pole main isolator
– 8" touch-screen, 640 x 480 mm
– Documentation incl. fixed wiring diagram, terminal connection dia-
gram with cable designation, operating and maintenance instruc-
tions, and installation instructions in a plan wallet
■ Sensors and switches installed at the supply screw conveyor:
– Infrared light barrier, level monitoring, separating barrier, supply
screw conveyor
– Safety limit switch on inspection cover of supply screw conveyor
– Contact sensor PT-100 at the supply screw conveyor
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■ Sensors and switches at the combustion block and in the flue outlet
(installation on site):
– Combustion chamber temperature sensor NiCrNi
– Infrared light barriers, level monitoring, fuel in combustion cham-
ber
– Zirconium dioxide probe with measured value transducer (Lambda
probe)
– Flue gas temperature sensor PT-100
– Underpressure sensor
– Overpressure limiter
■ Sensors and switches installed at top of boiler:
– Boiler water temperature sensor PT-1000 in connector flow
– Return temperature sensor PT-1000 in connector return
– High limit safety cut-out
PYROTEC