Description of the device
4
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English
Variomat Basic
—
22.07.2020 - Rev.
A
3.6
Residual risks
This device has been manufactured to the current state of the art.
However, some residual risk cannot be excluded.
CAUTION
Risk of burns on hot surfaces
Hot surfaces in heating systems can cause burns to the skin.
•
Wear protective gloves.
•
Please place appropriate warning signs in the vicinity of the
device.
CAUTION
Risk of injury due to pressurised liquid
If installation, removal or maintenance work is not carried out
correctly, there is a risk of burns and other injuries at the connection
points, if pressurised hot water or hot steam suddenly escapes.
•
Ensure proper installation, removal or maintenance work.
•
Ensure that the system is de-pressurised before performing
installation, removal or maintenance work at the connection
points.
WARNING
Risk of injury due to heavy weight
The devices are heavy. Consequently, there is a risk of physical injury
and accidents.
•
Use suitable lifting equipment for transportation and
installation.
4
Description of the device
4.1
Description
The Variomat VS 1 is a pump-controlled pressure maintaining, make-up
and degassing station for heating and cooling water systems. The
Variomat is essentially a controller with pumps and at least one
expansion tank. The expansion tank is fitted with a diaphragm to divide
the tank into an air space and a water space. preventing the ingress of
atmospheric oxygen into the expansion water.
The Variomat VS 1 provides the following safety features:
•
Optimisation of all pressure maintaining, degassing and make-up
processes.
–
No direct intake of air thanks to a regulation of the pressure
maintenance with automatic make-up.
–
No circulation issues caused by free bubbles in the circuit
water.
–
Reduced corrosion damage due to oxygen removal from fill
and make-up water.
4.2
Overview
1 "VE" ventilation
6
Pump "PU"
2 Degassing valve "DV"
7
Feed and drain cock "FD"
3 "PIS" pressure transducer
8
"LIS" level sensor
4 "PV" overflow valve
WC Make-up connection
5
“WV” make
-up valve
EC
Degassing connection
4.3
Identification
4.3.1
Nameplate
The nameplate provides information about the manufacturer, the year
of manufacture, the manufacturing number and the technical data.
Information on the type plate
Meaning
Type
Device name
Serial No.
Serial number
min. / max. allowable pressure
P
Minimum/maximum permissible
pressure
max. continuous operating
temperature
Maximum temperature for
continuous operation
min. / max. allowable
temperature / flow
temperature TS
Minimum / maximum permissible
temperature / TS flow temperature
Year built
Year of manufacture
min. operating pressure set up
on shop floor
Factory set minimum operating
pressure
at site
Set minimum operating pressure
max. pressure saftey valve
factory - aline
Factory set actuating pressure of
the safety valve
at site
Set actuating pressure of the safety
valve
