6
4.
Technical data
♦
Production control
All parts of the boiler are checked and set by the producer before assembly. Each boiler is tested for leak
tightness of the water circuit, and the control and safety features are adjusted and tested. The boiler is
manufactured in accordance with: CSN EN 60 335-1, CSN EN 60 335-1 ed.2, CSN EN 60 335-1 ed.3 CSN EN
60 335-2-30 ed. 2, 60335-2-30 ed.3, CSN 06 1008, CSN 07 7401, CSN 07 0240, CSN 06 0310, CSN 06 0830,
CSN EN 60 730-1, CSN 06 1010, NV no. 163/2002 Coll., NV 17/2003 Coll., NV 616/2006 Coll.
5.
Basic instructions for the boiler assembly
The electric boilers are designed for operation without necessary electrical engineering qualifications. The
operator may only handle the controls specified in this manual. Under no circumstances shall the operators
interfere with electrical wiring.
The electric boilers are intended for permanent connection to fixed wiring with mains voltage. A switch-off
device shall be integrated in the fixed wiring of the electric boiler – main switch and adequate circuit breaker.
Electric boilers may only be assembled by a qualified company or authorized technician with the necessary
electrical engineering qualifications, in compliance with any advice and notices contained in this manual.
Assembly shall be carried out in compliance with applicable standards and regulations! Connection of the
electric heating is subject to approval by the local electricity distribution plant. The applicant needs to request a
preliminary approval with the potential connection of higher input power and request the relevant rate. If new
central heating is constructed or an old one reconstructed, we recommend that the project be drawn up by a
professional. A prerequisite for the manufacturer´s warranty is professional commissioning by an authorized
service company! Connection to the mains and electrical wiring may only be carried out by an expert having the
qualifications required by Czech Regulation no. 50/1978 Coll.
The installation site for the electric boiler shall provide necessary access for operation and service purposes.
Minimum distances between the boiler and a fixed barrier are shown in chapter “Suspending the boiler”. After
THERM ELN 8 THERM ELN 15
Nominal heat output
kW
7.5
15
Minimum regulation level of the output
W
2500
5000
Number of output regulation levels
-
3
3
Rated current
A
11(33)
22
Degree of protection
IP
40
Electric voltage / frequency
V/Hz
3 x 400 + N + PE/50
Maximum rated current
A
3x 12 (1x36)
3 x 24
Main circuit breaker for electric installation
A
16 (40)
25
Rated current of the control circuit breaker
A
1.25
Electric service life of relay
-
1.10
5
cycles (16 A, 250V/50 Hz)
Mechanical service life of relay
-
10.10
6
cycles
Heating water input - output
-
G 3/4" outer
Min. working overpressure of the heating system
bar
0.5
Max. working overpressure of the heating system
bar
3.0
Maximum temperature of heating water
°C
80
Water volume of the boiler
1
6.8
9.6
Efficiency at the rated power
%
99.5
Capacity of expansion tank
1
7
Dimensions (height/width/depth)
mm
800/400/235
Weight of the boiler without water (gross)
kg
31 (34)
33 (35)
