Reflex Variomat Touch VS 2-1/35 Originalbetriebsanleitung Seite 33

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.
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.

Note!
When installing the on-site safety valve, the operator must ensure that
there is no danger during blow-off.

Note!
Equipment parts with a safety function in respect of water-side pressure
limiting according to the Pressure Equipment Directive 2014/68/EU and
temperature limiting according to the Pressure Equipment Directive
2014/68/EU are not supplied.
The operator is responsible for on-site provision of water-side pressure
and temperature protection.
4 Description of the device
4.1 Description
The Variomat with touch control 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 with touch control 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
Variomat with touch control and two
pumps
1 Main switch
2 Control unit
•
Pump(s)
•
"Reflex Control Touch"
controller
Variomat with touch control and one
pump
4 Degassing valve "DV"
5 "VF" secondary vessel
6 "VF" primary vessel
7 Feed and drain cock "FD"
Variomat Touch — 22.07.2024
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.
3 "VE" ventilation
4.3 Identification
4.3.1 Type plate
The nameplate provides information about the manufacturer, the year of
manufacture, the manufacturing number and the technical data.
Information on the type plate
Type
Serial No.
Min. / max. allowable pressure PS
Max. allowable flow temperature of
system
Min. / max. working temperature TS
Year of manufacture
Max. system pressure
Min. operating pressure set up on
site
4.3.2 Type code
No.
1 Control unit designation
2 Number of pumps Variomat VS 2- 1, VG 500 l, VF 500 l
3 "VG" primary vessel
4 Nominal volume
5 "VF" secondary vessel
6 Nominal volume
Description of the device
8 "LIS" level sensor
Meaning
Device name
Serial number
Minimum/maximum permissible pressure
Maximum permissible flow temperature
of the system
Min./max. operating temperature (TS)
Year of manufacture
Max. system pressure
Minimum operating pressure, set on site
Type code (example)
1 2 3 4 5 6
English — 33