21
454107.66.01-02_GB
01.07.2015
Translation of the Original
5.3.2 Draining Both Cooling Circuits
Do not drain the system before the unit has been switched off and disconnected from
the power supply!
Do not allow the water/glycol solution to get into the sewer system!
Prior to opening the fill and drain valves make sure that the emerging cooling
medium can be disposed of in a way that no damage to the unit and the connected
components can occur!
5. Assembly
ENGLISH
Step
Primary Circuit
Secondary Circuit
1
2
3
Connect suitable transparent hoses to the fill
and drain valves (1) &( 4) and submerge them
in a canister.
Caution:
The water/glycol solution must not be disposed
of in the sewer system!
Connect suitable transparent hoses to the fill
and drain valves (1) &( 4) and submerge them
in a canister.
4
5
Carefully open the screwed connections (6)
once no more liquid emerges.
Caution:
Do not open the connections completely until
the circuit has been completely drained.
Carefully open the screwed connections (7)
once no more liquid emerges.
Caution:
Do not open the connections completely until
the circuit has been completely drained.
6
7
8
The hose connections can now be removed from the unit.
Caution:
It is possible that minor residues of the cooling medium are still present in the system!
Close ball valve (2)
Turn off cooling system using the main switch and take proper lock-out measures.
Open the fill and drain valves (1) & (4)
Once no more liquid emerges at the fill and drain valves (1) & (4), re-close the ball valves (2) &
(3) just like all the other fill and drain valves.
