Fischer Panda Panda 14.000 NE PVK-U, Operating Instructions Manual

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Installation Instructions
Panda 14.000 NE PVK-U S00420 - Chapter E: Installation Instructions Page 75
External radiator should be installed when initially being put into operation or after repairs
A ventilating valve is fitted, as a rule, to all units manufactured since the Spring 1995. A hose
must be placed on the connecting nozzle ventilation valve to aerate the unit (nominal width 6-
8mm). A transparent hose is recommended, since the ventilation process is easy to observe. The
hose is to be fixed with light hose clips to the connecting nozzle. The hose must be sufficiently
long to be able to feed the other end into the open coolant expansion tank during operation.
The coolant expansion tank is initially filled with coolant. The air valve must be completely ope-
ned before the following procedure is carried out. You should assure yourself whether the con-
necting pipe has been connected correctly to the coolant backflow pipe by means of a T-piece.
This pipe should have an internal diameter of 12mm. Since the coolant pipes, for technical rea-
sons, can only be gradually laid out with difficulty, resistance builds up during refilling, which can
only be displaced with difficulty by the air in the generator or motor. This process can be made
easier by producing excess pressure by means of the above mentioned ventilation pipe. The pro-
cess is eased considerably, in that a transparent ventilation hose draws in air (this can also be
carried out by mouth, if done cautiously). Meanwhile the coolant expansion tank should, at the
same time, be refilled with water. The generator can be started as soon as the drawn in water is
seen in the ventilation pipe (all other measures must, of course, be considered, for example,
checking whether the motor oil has been topped up etc., as stipulated in the generator operating
instructions).
During the starting process, the coolant expansion tank must be continually refilled with coolant
so that no further air can force its way into the system from above. The other end of the ventila-
tion pipe should be laid in the open coolant expansion tank filling opening, so that outflowing coo-
lant runs back into the tank.
During the starting process the open coolant expansion tank must continually be filled with coo-
lant so that no further air can force its way into the system. The ventilation pipe should be laid in
the open filler cap of the coolant expansion tank during the starting procedure, so that escaping
coolant runs back into the tank.
Decisive for the success of this procedure is that sufficient water enters to internal coolant pump,
so that the coolant pump can function. The coolant pump cannot draw water as long as there is
air in the casing.