Condair MD Series Commissioning Manual page 8

8b Manual bleeding variants MD-HW-H, MD-WW-H
1. Switch off ERV, switch on hydraulic unit and set "Operating Mode" to "Standby" under "Menu > User Settings > Opera-
tion".
2. Open shut-off valves in the supply and return line.
3. Place absorbent rag under the armored hose in the hydraulic unit (see
Installation
Install.Seq.
Bleeding
4. Select function "Bleeding" under
"Menu > User Settings > Installa-
tion".
5. Loosen the screw connection of the armored hose at the return of the heat exchanger until it is audible that air escapes
(max. 1/2 turn). Never completely loosen the screw connection, because otherwise heating or hot water can escape
uncontrolled.
Fig. 2:
8. As soon as water drips out of the connection on the heat exchanger, the heating water or hot water circuit is bled.
9. Tighten the screwed connection of the armored hose and wipe off any water residues with the rag.
8
Bleeding 1/3
Off The system is preparing
the bleeding procedure
on the primary water
circuit with the primary
pump.
The above messages are displayed one after the other.
Important: Do not confirm the second message until you have finished
bleeding.
6
5
3
Manual bleeding of the heating water or hot water circuit, variants MD-HW-H and MD-WW-H
Fig. 2).
Bleeding 2/3
Please bleed now the
the heat exchanger!
It is described in
more detail in the
HumiLife KWL manual
You have 10min time.
Heat exchanger
Warning:
Danger of scalding
For manual bleeding, loosen this screw
connection max. 1/2 turn
Armored hose heating water return
Place absorbent rag here
.