ABC Kliima ELK 9M, Руководство по установке, Страница: 6 / 16

6 ELK 9M
Pipe connections
General
The pipe installation must be carried out in accor-
dance 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 by-
pass valve must be installed so that the flow through
the electric heater does not stop. In closed installa-
tions an approved safety valve and pressure expan-
sion vessel must be used.
NOTE
The pipe work must be flushed before the electric
heater is connected, so that any contaminants do not
damage the component parts.
CAUTION
Also see the installer manual for your heat pump/in-
door module.
Draining
The system is most easily drained by installing a
drainage valve at the lowest point on the pipe instal-
lation. The remaining water in ELK 9M is drained
through the return line connection (XL2), see “Com-
ponent location” on page 5. If the return line connec-
tion on ELK 9M is normally used for draining the unit,
a drain valve can be installed here.
Pressure drop diagram ELK 9M
Flow (l/s)
(kPa)
0
7 , 0 4 , 0 3 , 0 2 , 0 1 , 0 0
0,5
1,0
1,5
2,0
2,5
(kPa)
(l/s)
0,6 0,5