Operating and installation instructions
08.02.2021 – Version 1.1
Dry cooler
X-TDH.3-100-22-G-N-D5-BC-04
Page: 24/31
Operating and installation instructions for dry cooler translation into English © thermofin GmbH
6. COMMISSIONING, NORMAL OPERATION, CLEANING, SPARE
PARTS, DECOMMISSIONING, DISPOSAL
6.1 Commissioning
Before the first commissioning, a test according to EN 60079-14 must be carried out.
Furthermore, the unit’s readiness for operation must be verified according to the following points:
1.
Is the device including the housing undamaged?
2.
Are all covers and partitions on live parts in place and properly attached?
3.
Are all openings, bores, etc. in the housing sealed with approved components?
4.
Have all the transport protection devices attached at the factory been removed?
5.
Has the unit been properly installed and fixed in accordance with the instructions of the
present manual?
6.
Have all fluid-carrying lines been connected and checked for tightness? Are the shut-off
devices open?
7.
Is the flow direction correct?
8.
Are all cables properly installed and completely connected? Has cabling been done according
to the wiring diagrams provided?
9.
Has the electrical protective installation been checked for proper functioning?
10.
Have all bolted connections (e.g., fans, cable entries), fastenings, electrical connections etc.
been checked for tight fit?
11.
Are all terminal boxes and cable entries firmly and clean closed and tight?
12.
Do the fans rotate freely and in the right direction?
13.
Have the prescribed tightening torques been observed?
The following measures must be taken during commissioning:
1.
Check and, if necessary, adjust the direction of rotation of the fans.
2.
Measure the current consumption of the fans and check for compliance with the type plate
data.
3.
Adjust the electrical switching and control devices and check for correct functioning (see the
specific operating manual of the respective control device).
4.
Check the switch point settings of the safety equipment.
6.1.1 Return to service after a longer period of standstill
If the unit is intended to be put into operation again after being shut down and standing still for a
longer period of time, the following points must be checked in addition to those mentioned under “6.1
Commissioning”:
1.
Visual inspection of the heat exchanger coil, check for fouling and damages
2.
Leak test of the heat exchanger coil
