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REMKO KWG750 Manual

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Medium lines
The medium lines can be designed
as copper, steel, or plastic pipes.
To minimise pressure losses, only
fittings that are favourable to flow
should be used.
During design, the large volume
flow rates of cold water systems,
higher pressure losses due to a
water/glycol mixtures, and the
minimum volume flow rate of the
chiller must be taken into consid-
eration.
The line must be insulated in a
vapour-diffusion-tight manner, and
any current, local energy savings
ordinances must be observed. UV
resistance must be implemented
outdoors.
Victaulic connectors
The connection to the unit is
implemented using Victaulic con-
nectors. The Victaulic connectors
offer many advantages, such as
vibration reduction of the internal
pipeline at the connection to the
on-site pipework. The pipe adapter
allows a welded or threaded con-
nection to the on-site pipework.
The connection can be seen in the
following figures:
Victaulic connectors
Pressure and temperature indica-
tors
The pressure and temperature in-
dicators to be installed in the inlet
and outlet on site are used to set
the medium volume flow rate. The
indicators should be lockable.
The chiller contains temperature
sensors in the medium inlet, me-
dium outlet, and condenser. Using
the controller, the sensor values
can be queried.
Line regulating valves
Using line regulating valves
provided on site, the individual
pressure losses calculated in the
pipe network design are adapted
to each individual unit in the
overall system. Due to the pressure
loss, the nominal volume flow
rates of the medium are adapted
to the required values. If necessary,
a line regulating valve is required
in the inlet flow line to regulate the
volume flow rate in case the pump
pressure is too high.
Connection of the medium
lines
■
The on-site connection of the
lines takes place on the rear of
the units.
■
For servicing purposes, the
connections must be equipped
with shut-off valves and the
volume flow rate must be set
using line regulating valve.
■
Additional automatic bleeding
valves are provided in the inlet
flow, return, and highest point
of the installation.
■
The medium lines must not
exert static loads on the unit.
■
The connection of the lines
must not generate thermal or
mechanical stress on the unit.
Cool the line if necessary and/
or dolly with a second tool.
■
If the unit is initially operated
with only part of the overall
system, the medium volume
flow rate of the missing parts of
the system must be simulated
using line regulating valves.
■
The pipe dimensioning must be
designed in such a way that the
required minimum volume flow
rate is not undershot.
Pipe routing
KWP 400-1750
No pipe routing
possible
Free pipe
routing
possible
In order for the minimum
volume flow rate to be
reached, a permanent, high
volume flow rate must be
guaranteed.
!
ATTENTION
Source: Victaulic
REMKO KWG
26
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