1 Cap ball valve Rp 1 (obscured)
to the pump pressure line
2 Pressure transducer
3 Solenoid valve (make-up)
4 Dirt trap
5 Cap ball valve Rp 1 to the
overflow line
6 Motorised ball valve
7 Non-return valve
8 Pump
9 Evacuation device (pump,
obscured)
10 Safety
valve
’variomat 2-1’
control unit
VG basic vessel
Close-up of the ’variomat’
Technical
version
Number of pumps
Pump
type
’variomat 2 - 1/ 60’
’variomat 2 - 2/ 75’
’variomat 1’ (only 1 pump and one type)
Circuit water overflow line
Make-up water
Circuit water pump line
P
O
WM
reflex ’fillset’
(accessory)
16 Level gauge (oil cell)
17 Filling and draining tap
18 Connection for VF secondary
vessel up to 1000 l
∅
= 740 mm
19 Dipstick-tube degassing unit
20 Opening for air compensation
between vessel wall and
diaphragm (compensating
bend)
21 Diaphragm
22 VG basic vessel
Escape line
O
10
Type key for control unit
2
4
11
13
12
6
15
16
17
2
8
21
20
19
22
*
*
*
*
*
*
Items 17, 19, 20
for completion
in a bag on
the VG or VF
vessel
*
Overview
’variomat’ control unit hydraulics
VG basic vessel
’variomat’ controller
11 Control box IP 54
12 Lockable power switch
(only with ’variomat 2’)
13 Control
panel
’variomat’ connection set
14 Cap ball valve
15 Flexible connection hoses
3
reflex ’variomat’
General
3
5
1
9
10
18
5
10 3
7
4
