SIEMENS
Engineering information
SINAMICS GM150, SINAMICS SM150
Cooling unit
9/9
Siemens D 12 · 2012
9
■
Function
Options
Redundancy (options
W02
and
W12
)
On request, the cooling unit can be designed for fully redundant
operation, i.e. two plate-type heat exchangers are provided. In
this case, defective parts can be exchanged while the system
continues to run.
Tube-nest heat exchanger (on request)
If the raw water quality deviates from the standard values
specified above (e.g. the water contains suspended particles),
on request, a tube-nest heat exchanger can be used.
Notice: A supplementary cabinet is required if a tube-nest heat
exchanger is used.
The following additional options are available on request:
•
External air-to-water heat exchanger (on request)
An external air-to-water heat exchanger can be used on re-
quest if there is no process water available on the plant side.
In this case, the ambient temperature may be a maximum of
35 °C.
•
Chillers (on request)
If there is no process water on the plant side and if the ambient
temperature exceeds 35 °C, then on request, a so-called
chiller (incl. compressor) can be used.
•
Specification for the cooling unit (on request)
When selecting option
W14
(converter without cooling unit),
specifications of the cooling unit are available on request.
Flowchart of the cooling unit
■
Technical specifications
M
M
M
LSD
LA
PT
100
P
TM
Raw-water
inlet
Ball valve
Shut-off valve
Reducing
valve
Shut-off valve
Pump
Non-return valve
Non-return valve
Ball valve
Shut-off valve
Shut-off valve
Heat exchanger
Shut-off valve
Raw-water
outlet
Shut-off valve
Deionized water
from converter
Converter
connection
Flange with
counterflange
Reducing valve
Air valve
Ball valve
Filling hose
Level switch
Pressure gage
Thermometer
Shut-off valve
Deionized water
to converter
Converter
connection
Ball valve
Ion
exchanger
Pollution filter
Three-way
valve
Fine filter
Reducing valve
Ball valve
Breather
Temperature
control
G_D012_EN_00034
Technical specifications of the cooling unit
Degree of protection
• Cabinet
IP20
• All internal components
IP54
Supply voltage
3/N/PE/AC 400 V ±10 %,
50/60 Hz ±3 %
Raw water circuit
• Inlet temperature
5 ... 35 °C
(for power derating of the
converter max. +40 °C)
• Temperature rise in converter, max.
10 K (for minimum flow)
• Input pressure
2 ... 10 bar
Pressure drop
<1 bar
© Siemens AG 2012