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Installation instruction
1. Overview
See figure C1.
Pos.
Function
1
Bottom part
2
Safety thermal cut-out (STB)
3
Thermal sensor set
4
Heating element
5
Non-return valve
6
Flow sensor
Safety pressure cut-out SDB
7
8
Outlet pipe
9
Hot water connection
10
Flow limiter 8 l/min
11
Screw-in nipples ½ inch
12
Grommet
2. Technical specifications
Model
Energy efficiency class
Rated capacity / rated current
Chosen capacity / current
Nominal voltage
Electrical connection
Min. required cable size
1)
Hot water (l/min)
max. at ∆t = 28 K
max. at ∆t = 38 K
Rated volume
Rated pressure
Connecting type
Heating system
@ 15 °C:
Required specific water resistance
Specific electrical conductivity
Inlet temperature
Flow rate to switch on – max. flow rate
Pressure loss
Temperature range
Water connection
Weight (when filled with water)
VDE class of protection
Type of protection / safety
* ) The declaration complies with the EU regulation No 812/2013.
1) Maximum applicable cable size is 10 mm
2) Mixed water
3) Flow rate limited to achieve optimum temperature rise
4) Without flow regulator
3. Dimensions
Dimensions in mm (fig. D1)
DEX-Next-L-KA-de-en-fr-nl-pt-es-pl-ru-cs-sk-bg-sr-01-2023.indd 11
DEX-Next-L-KA-de-en-fr-nl-pt-es-pl-ru-cs-sk-bg-sr-01-2023.indd 11
18 kW / 26 A
16,2 kW / 25 A
400 V
380 V
4.0 mm
2
9.2
2)
6.8
at electrical connection from above
2
Pos.
Function
Water splash protection sleeve
13
Wall bracket
14
DEX Next L hood
15
Connecting pipe
16
PCB cover
17
PCB
18
Connecting terminal
19
20
Control panel
Inlet pipe
21
Fine filter
22
Cold water connection
23
Frame
24
DEX Next L
A *
)
18 kW..27 kW (26 A..39 A)
21 kW / 30 A
19 kW / 29 A
24 kW / 35 A
400 V
380 V
400 V
3~ / PE
4.0 mm
6.0 mm
2
10.7
12.3
2)
7.9
0.4 l
1.0 MPa (10 bar)
pressure-resistant / pressureless
Bare wire heating system IES
®
≥ 1100 Ωcm
≤ 90 mS/m
≤ 30 °C
1.5 l/min – 8.0
3)
0.08 bar at 1.5 l/min 1.3 bar at 9.0 l/min
20 – 60 °C
G ½ inch
4.2 kg
I
IP25
11
CLAGE
21,7 kW / 33 A
27 kW / 39 A
24,4 kW / 37 A
380 V
400 V
380 V
6.0 mm
2
2
13.8
2)
2)
9.0
10.2
2)
2)
4)
13.01.2023 11:09:00
13.01.2023 11:09:00
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