Specification
Permissible ambient temperature
– During operation 0 to +40 °C
– During storage and transport −20 to +70 °C
Setting range for glycol volume
ratio
0 to 70 %
Flow meter 06 15 25 35 60
Dimension a in mm 110 110 130 — —
Pulse rate l/imp. 1 10 25 25 25
Internal diameter DN 15 15 20 25 32
Connection thread at the meter R ¾ ¾ 1 1¼ 1½
Connection thread at the fitting R ½ ½ ¾ 1 1¼
Max. operating pressure bar 16 16 16 16 16
Max. operating temperature °C 120 120 120 130 130
Sensor wells G½ x mm 45 45 60 60 60
The following details refer to the water flow rate. If glycol mixtures are used, the different viscosities will result in deviations.
Nominal flow rate
m
3
/h
0.6 1.5 2.5 3.5 6.0
Peak flow rate
m
3
/h
1.2 3 5 7 12
Cut point ±3 % l/h 48 120 200 280 480
Lowest flow rate (horizontal installation) l/h 12 30 50 70 120
Lowest flow rate (vertical installation) l/h 24 60 100 — —
Pressure drop at approx. ⅔ of the nominal flow
rate
bar 0.1 0.1 0.1 0.1 0.1
Solar cell
Part no. 7408 877
The solar cell captures the intensity of the sun and communicates
this to the solar control unit. The bypass pump will be switched ON if
the insolation exceeds the set switching threshold.
With connecting cable, 2.3 m long.
On-site extension of the connecting lead:
2-core lead, length max. 35 m with a cross-section of 1.5 mm
2
(cop-
per).
Large display
Part no. 7438 325
To visualise the collector and cylinder temperatures as well as the
energy yield.
With power supply unit plug.
Specification
Power supply 9 V– plug power supply unit
230 V~, 50 to 60 Hz
Power consumption max. 12 VA
BUS connection V BUS
IP rating IP 30
(in dry rooms)
Permissible ambient temperature
during operation, storage and
transport
0 to 40 °C
High limit safety cut-out
Part no. Z001 889
■ With a thermostatic system
■ With stainless steel sensor well R½ x 200 mm
■ With setting scale and reset button in the casing
■
Required if less than 40 l cylinder capacity is available per m
2
absorber area. This reliably prevents temperatures above 95 °C in
the DHW cylinder.
Solar control units
(cont.)
38
VIESMANN
VITOSOL
6
5822 440 GB