20
454107.66.01-02_GB
01.07.2015
Translation of the Original
5. Assembly
Direction of rotation of actuator handwheel
ENGLISH
Step Primary Circuit Secondary Circuit
7
8
9
A filling pressure of 3 bar. The fill pump may
have to be turned on again and the fill and drain
valve (1) opened until this pressure is reached,
or else, the pressure needs to be relieved via
the fill and drain valve (4).
Turn off the fill pump and/or close the fill and
drain valve(s) (1) & (4).
A filling pressure of 2 bar. To reach this
pressure it may be necessary to continue filling
the circuit via the fill and drain valve (1), or else
to relieve the pressure via the fill and drain valve
(4).
Close fill and drain valves (1) & (4).
10
11
Now disconnect the fill pump from the cooling
system and screw the protective caps back on
the fill and drain valves (1) & (4).
Screw the protective caps back on the fill and
drain valves (1) & (4).
12
Once the medium flows out of the flushing hose with almost no air bubbles, close the fill and drain
valve (4) as well as the flushing hose outlet and open valve (3).
Any remaining air will be removed from the system via the air separator.
The cooling system is now ready for operation.
Activate the power supply.
- Activate all motor protecting switches [Q1-Q6] and circuit-breaker F1
- Turn on main switch
Q1: Outdoor Unit
Q2: Compressor 1
Q3: Compressor 2
Q4: Secondary pump
Q5: Primary pump
Q6: Control-power transformer
F1: Control circuit
After an initialisation period of approx. 2 minutes, the cooling water pumps will start operating.
Any air that may still be trapped in the circuit will be removed by the air separator. Should this
cause the operating pressure to fall below the recommended pressure of 2bar or 3bar ±0.2bar,
step 9 has to be repeated.
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