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INSTALLATION
PROFI SeLeCT modular system
8.1
Base unit
Base units are fully functional heat interface units which can
be further equipped with output modules and installation
options.
Designation
Description
WS-1
Copper soldered heat exchanger
WS-2
Copper soldered heat exchanger
WS-3
Copper soldered heat exchanger
WS-4
Copper soldered heat exchanger
WS-G-2
Stainless steel soldered heat exchanger
WS-G-3
Stainless steel soldered heat exchanger
WS-G-4
Stainless steel soldered heat exchanger
4
8
7
6
5
4
1 Heat meter adaptor
2 differential pressure controller
3 Room heating valve
4 Air vent screw
5 Pressure surge reducer
6 "Thermo fluid system" temperature controller
7 dirt filter with strainer
8 Plate heat exchanger
8.1.1 Heat meter
Heat meters must be installed in the unit on site.
The base units are equipped with appropriate fittings (110 mm,
¾" 1.5 m³/h) for the heat meters.
Sensor retainer:
- directly immersed
- Sensor length: 28 mm
- diameter: Max. 5.4 mm; at the sealing point min. 5.2 mm
20 |
8.1.2 Heat exchanger operating conditions
The threaded, stainless steel soldered heat exchanger is par-
ticularly suitable for applications where water quality is critical.
Water constituents /
characteristic values
pH value
Saturation index SI
(delta pH value)
Total hardness
Conductivity
Suspended solids
Chloride
Free chlorine
Hydrogen sulphide
Ammonia
Sulphate
Hydrogen carbonate
Hydrogen carbonate/
sulphate
1
Sulphide
Nitrate
Nitrite
Iron, dissolved
Manganese
Free, aggressive carbon
dioxide
Note
We recommend using a softening system if the total
hardness is > 15 °dH.
2
8.1.3 Thermal overflow valve operating conditions
3
A thermal overflow valve can be used at the end of the line to
increase comfort levels.
Designation
Overflow valve
ÜVS
Note
If the simple pipe length (see following table) of the
last heat interface unit in the line is not exceeded, a
thermal overflow valve is not required.
Required flow temperature [°C]
Nominal pipe diameter
dN 15
dN 20
dN 25
dN 32
dN 40
dN 50
Unit
Heat exchanger
Heat exchanger
copper soldered
stainless steel sol-
dered
7-9 (taking SI index
6-10
into account)
-0.2 < 0 < +0.2
Not specified
°dH
6-15
6-15
μS/cm
10...500
Not specified
mg/l
< 30
< 30
mg/l
Above 100 °C no chlorides permissible
mg/l
< 0.5
< 0.5
mg/l
< 0.05
Not specified
mg/l
< 2
Not specified
mg/l
< 100
< 400
mg/l
< 300
Not specified
mg/l
> 0.1
Not specified
mg/l
< 1
< 7
mg/l
< 100
Not specified
mg/l
< 0.1
Not specified
mg/l
< 0.2
< 0.2
mg/l
< 0.1
Not specified
mg/l
< 20
Not specified
Part number
236016
70
65
21
17
18
15
16
13
14
11
13
10
11
9
60
55
Pipe length [m]
12
7
11
6
9
5
8
5
7
4
7
4
WS, WS-G
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