4
ISOMIX F-IM-DE-W-UK-01-2021-Rev4 | Part no. 10070292
EN
ENGLISH
3 Structure
1
3
5
8
4
6
2
7
B
D
C
A
Fig. 3-1 Structure
1
Circulation pump
2
Thermostatic head
3
3-way mixer valve
4
Thermowell for capillary tube temperature sensor
5
Eccentric screw fitting with thermometer
6
Insert check valve
7
Connection for return flow sensor 1/8"(option)
8
Temperature limiter (optional)
A
Primary supply (1" male thread)
B
Primary return (1" male thread)
C
Surface heating/cooling supply (1" union nut)
D
Surface heating/cooling return (1" union nut)
4 Function
The mixer valve (3) on the control station is controlled via
a thermostat head (2) with capillary tube and sensor ele-
ment on the heating circuit supply (A). Deviations from the
set value immediately cause a valve stroke change, there-
by changing the quantity of hot water injected from the boiler
circuit accordingly. The water injected mixes with the return
water from the heating circuit and thus keeps the flow tem-
perature constant within a narrow range. The actual value
can be checked on the thermometer (5). Check valve (6) pre-
vents a short-circuit of the primary circuit
The temperature limiter (8) switches off the circulating pump
(1), when the supply temperature is exceeded, thus prevent-
ing the panel heating system from overheating.
5 Technical data
Hydraulic performance data
Max. operating pressure
10 bar
Max. ambient temperature
40 °C
Max. operating temperature
80 °C
Setting range of supply
temperature
20 - 70 °C
Kvs value
3,2 m³/h
Heating demand
14 kW at ∆T=10K
Differential pressure
max. 500 mbar
Media
Water/water-glycol mixture
as per VDI 2035/ÖNORM
(Austrian standard) 5195
Connections to pipe network
Primary (heat generator)
1" male thread, flat sealing
Secondary (heat distribution)
1" fl. (union nut), flat sealing
Toques of the fitting
¾"
35 Nm
1"
55 Nm
Materials
Fittings
Brass CW617 N, nickel plated
Seals and O-rings
AFM34/2 and EPDM
Plastics
Impact resistant and tempera-
ture resistant
Circulation pump and temperature limiter
Technical data can be found in the enclosed technical
documentation.
