Man E 2842 LE 302, Руководство по эксплуатации

Страница: 21 / 50

Commissioning and operation
67
Diagram of cooling system with diaphragm expansion vessel
1
2
3
4
5
6
9
7
8
10
À
Engine
Á
Bleeder line
∅
10 mm,
flow rate 7 l/min to max. 10 l/min
Â
Bleeder reservoir
Ã
Automatic breather valve
Ä
Sensor for liquid level
Å
Plate with 5x10 mm bore
Æ
Diaphragm expansion vessel (0,6 bar)
Ç
Connection line to the intake side
of the coolant pump
∅
25 mm
È
Coolant inlet
É
Coolant outlet
D
Overpressure safety valve 3,5 bar
Operating pressure: min. 0,6 bar
max. 3,0 bar
D
Observe the filling regulations of the manufacturer of the cogeneration power unit
D
For coolant filling quantity, see “Technical data”
D
Fill up the cooling system with the filler device, keeping the breathers open until the
coolant emerges bubble-free
D
Close breathers and increase pressure to a value which is approx. 0,2 − 0,4 bar above
the pre-pressure of the expansion vessel
D
Start up system. Let it cool down after trail operation (i.e. after it reaches the operating
temperature)
D
When the cooling temperature has fallen to below 50
_
C, increase the system pressure
to 0,5 bar above the pre-pressure of the expansion vessel via the filler device