19
454107.66.01-02_GB
01.07.2015
Translation of the Original
5.3.1 Filling Both Cooling Circuits
Do not start filling the cooling circuits until the individual components have been
incorporated as specified. Only genuine hoses are to be used in accordance with
specifications.
We recommend the use of GDD fill pump sets (order number 4518109031)
5. Assembly
ENGLISH
Step
Primary Circuit
Secondary Circuit
1
Connect the pressure hose of the fill pump to
the fill and drain valve (1) of the cooling circuit
pump.
Connect the drinking water pressure hose to the
fill and drain valve (1) of the cooling circuit
pump.
(Specifications per the Siemens Planning
Guide to be used / any national laws concerning
the Drinking Water Ordinance must be
complied with)
2
Submerge the suction hose of the fill pump in
the canister containing the water/glycol solution
(the supplied water/glycol solution must be
used).
dispensed with
3
4
Connect a flushing hose (use a transparent
hose, if possible) to the fill and drain valve (4)
and also place this hose either into an empty
canister or into the canister containing the
water/glycol solution. Open the fill and drain
valve (4).
Caution:
Do not allow the water/glycol solution to get into
the sewer system!
Connect a flushing hose (use a transparent
hose, if possible) to the fill and drain valve (4)
and place this hose into an empty vessel.
Open the fill and drain valve (4).
5
Turn on the fill pump and slowly open the fill and
drain valve (1) to prevent pressure shocks
(water hammer) from occurring.
Open on-site drinking water supply line and then
slowly open the fill and drain valve (1) to prevent
pressure shocks (water hammer) from
occurring.
6
To change the canister, slowly close the fill and
drain valve (1) and immediately turn off the fill
pump. The circuit is completely filled once filling
medium flows back through the flushing hose.
Note:
In case medium emerges directly from the
flushing port (4), check the 3-way valve (P&I flow
diagram, part 22) at the outlet – manual
switchover from bypass to two-way (see Fig. on
page 17)
Caution:
The circuit must now be properly flushed (3-
10min). The amount of time required for this
procedure may vary depending on the hose
length and the installation height difference.
The more thoroughly the circuit is flushed, the
earlier will the system be free of air and ready
for operation.
The circuit is completely filled once the filling
medium flows back through the flushing hose.
Caution:
The circuit must now be properly flushed (3-
10min). The amount of time required for this
procedure may vary depending on the hose
length and the installation height difference.
The more thoroughly the circuit is flushed, the
earlier will the system be free of air and ready
for operation.
Close ball valve (3) and open ball valve (2).
