Rittal Liquid Cooling Package
27
6 Installation
6
Fig. 27:
Pressure switch on the condenser
Key
1
Condenser
2
Pressure switch
Power is supplied to the external condenser via a 3-wire
connection cable (230 V, 1~, N, PE). The 3-wire cable
must be inserted into the main switch box of the external
condenser from above. The main switch is wired to the
fan control in the factory, and the pressure transducer is
mechanically and electrically connected to the condens-
er.
Once the power supply is connected to the master
switch:
Rotate the master switch into the "I" position.
The fans will start up as soon as the LCP DX is
switched on.
6.5
Checking the entire system prior to
commissioning
Before operating the cooling system, the entire system,
including the complete cooling system, must be
checked for conformity with the relevant diagrams, flow
charts and piping and instrumentation diagrams of the
system and wiring plans.
Cooling systems must be checked by a trained plant in-
spector (as defined in EN 13313) and should include a
review of the following points:
1. Inspect the documents.
2. Check the safety switchgear for pressure limiting. In
this connection, it is important to check that the
safety switchgear for pressure limiting is operational
and correctly installed.
3. Check selected hard solder connections on pipe-
work for compliance with EN 14276-2.
4. Check the refrigerant pipelines.
5. Inspect the report on the cooling system leak test.
6. Visually inspect the cooling system.
7. Check the labels.
This inspection must be documented; see EN 378-2,
section 6.4.3. No cooling system may be operated with-
out the correct documentation.
The installer must document the fact that the system
was installed in accordance with the construction re-
quirements and state the safety and control device set-
tings, if adjustable, following commissioning. This docu-
mentation must be kept by the installer and presented
upon request.
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