
Pipe connections
GENERAL
The pipe installation must be carried out in accordance
with applicable standards.
A circulation pump must be used to ensure the flow
over the immersion heater. If the heating system valves
can close the circulation completely, the bypass valve
must be installed so that the flow through the electric
heater does not stop. In closed installations an approved
safety valve and pressure expansion vessel must be
used.
Caution
Also see the installer manual for your heat
pump/indoor module.
NOTE
The pipe work must be flushed before the
electric heater is connected, so that any con-
taminants do not damage the component parts.
DRAINING
The system is most easily drained by installing a drain-
age valve at the lowest point on the pipe installation.
The remaining water in ELK 42 is drained through the
return line connection (XL2), see "Component location"
on page
. If the return line connection on ELK 42 is
normally used for draining the unit, a drain valve can be
installed here.
NOTE
The pipe work must be flushed before the
electric heater is connected, so that any con-
taminants do not damage the component parts.
PRESSURE DROP DIAGRAM ELK 42
Pressure drop
(kPa)
0
0
0,4
0,8
1,6
2,8
1
2
3
4
9
(kPa)
(l/s)
5
1,2
6
7
8
2,0
2,4
Flow (l/s)
SYSTEM DIAGRAM
NOTE
This is the outline diagram. Actual installations
must be planned according to applicable
standards.
SYMBOL KEY
Meaning
Symbol
Shut-off valve
Non-return valve
Circulation pump
Expansion vessel
Pressure gauge
P
Temperature sensor
Trim valve
Heat pump
Radiator system
Designations according to standard EN 81346-2.
OUTLINE DIAGRAM
P
Heat pump/
Indoor module
ELK 42
Electrical connection
NOTE
All electrical connections must be carried out
by an authorised electrician.
Electrical installation and wiring must be carried
out in accordance with the stipulations in force.
The climate unit must not be powered when
installing ELK 42.
ELK 42 must be installed on terminal block X1 via a cir-
cuit breaker with a minimum breaking gap of 3 mm.
ELK 42 contains temperature limiter and contactors for
external control of the three power stages 6, 12 and
24 kW. For the best function, the power should be binary
controlled, i.e. 6, 12, 18, 24, 30, 36 and 42 kW.
17
ELK 42 | GB
Содержание ELK 42
Страница 2: ......
Страница 12: ...Tekniska uppgifter M TT Alla m tt r i millimeter 700 350 210 85 75 100 350 400 ELK 42 SE 12...
Страница 23: ...Technical data DIMENSIONS All dimensions in mm 700 350 210 85 75 100 350 400 23 ELK 42 GB...
Страница 34: ...Technische Daten MA E Alle Ma e sind in mm angegeben 700 350 210 85 75 100 350 400 ELK 42 DE 34...
Страница 45: ...Tekniset tiedot MITAT Kaikki mitat ovat millimetrein 700 350 210 85 75 100 350 400 45 ELK 42 FI...
Страница 48: ......
Страница 49: ......
Страница 50: ......