Viessmann VITODENS 050-W Technical Manual page 32

Installation accessories
Components:
■ Measuring unit with threaded connector for capturing the flow rate.
■ Temperature sensor Pt1000, connected to the heat meter, sensor
lead 1.5 m long.
■ G 1 or G 1¼ connection accessories including ball valves.
Pressure drop
1.0 100
0.5 50
0.4 40
0.3 30
0.2 20
4
0.1 10
0.05 5
0.04 4
0.03 3
0.02 2
0.01 1
0.2
0.3
Flow rate in m³/h
Specification
Nominal flow rate
Lead length
IP rating
Permissible ambient temperature
– During operation
– During storage and
transport
Sensor type
Max. operating pressure
Nominal diameter
Installed length
Max. flow rate
Minimum flow rate
– Horizontal installation
– Vertical installation
Start-up value (for hori-
zontal installation)
Battery life
VIESMANN
32
(cont.)
0.4 0.6 1 1.5 2.5 4 5 6
0.5 1.2 2 3
2.5 m 3 /h
1.5 m
IP 54 to EN 60529; ensure through de-
sign/installation
5 to 55 °C
–20 to +70 °C
Pt1000
10 bar (1 MPa)
DN 20
130 mm
5000 l/h
50 l/h
50 l/h
7 l/h
Approx. 10 years
Safety assembly to DIN 1988
Comprising:
■ Shut-off valve
■ Non-return valve and test connector
■ Pressure gauge connector
■ Diaphragm safety valve
– 10 bar (1 MPa)
– DN 15, up to 200 l cylinder capacity
Part no. 7219722
– DN 20, for 300 l cylinder capacity
Part no. 7180662
– a 6 bar (0.6 MPa)
– DN 15, up to 200 l cylinder capacity
Part no. 7265023
– DN 20, for 300 l cylinder capacity
Part no. 7179666
For Vitocell 100-W below the boiler
– 10 bar (1 MPa), DN 15, right angle version
Part no. 7180097
– a 6 bar (0.6 MPa), DN 15, right angle version
Part no. 7179457
Pressure reducer (DN 15)
Part no. 7180148
To match right angle version of the safety assembly
Drain outlet set
Part no. 7459591
Drain outlet with trap and rose. For connecting the drain lines of the
safety valves and the condensate drain.
Drain connection G 1
Valve/fittings cover
Part no. ZK06090
Cannot be used in conjunction with a DHW cylinder below the boiler
VITODENS