43
Tasks per components Actions
Months
1 3 4 12 24
Recommended inspection
and maintenance interval
3.10 Check fi lter cleanliness Clean
✘
3.11
Check that the hydraulic circuit is fi lled
properly
✘
3.12
Check the condition of the expansion tank
(presence of excessive corrosion, or gas
pressure loss)
Replace if required
✘
3.13 Check the water pump
If the unit has not been used for a long
time, manually rotate the pump shaft
and check that it turns freely.
For a unit equipped with a double
pump, it is recommended to switch
from one pump to the other every
month or to check that the pump
shaft turns freely to prevent the liners
sticking.
✘
Change the pump liner after 15,000
hours running with anti-freeze or
25,000 hours running with water
✘
3.14
Verify that low water pressure sensor works
perfectly
✘
3.15
Record the water temperatures at the plate
heat exchanger inlet and outlet
✘
4 - Electric circuit
4.1
Check the electrical voltage applied to the
unit, which must remain stable within the
tolerances specifi ed in the information plates
✘
4.2
Check that the main supply cable is void of
alterations likely to impact the insulation
Replace if required
✘
4.3 Check the grounding of the metallic structure Repair if required
✘
4.4 Inspect the contacts Replace if required
✘
4.5
Check that all electrical connections of the
device are tight
Tighten if required
✘✘
4.6
Check the thermal protection relays of the
motors
Replace if required
✘
4.7
Check the nominal intensity and condition of
the fuses
✘
4.8 Check the condition of the condensers
✘
4.9
Clean the electrical cabinet with compressed
air to remove any dust or other contaminants
building up
✘✘
4.10 Check the motor windings are insulated
✘
5 - Fan(s)
5.1
Check for lack of contamination, corrosion or
damage
Clean if required
✘
5.2 Check proper fastening of the fan Tighten if required
✘
5.3 Check the vanes to guarantee balancing Clean if required
✘
5.4 Check the bearings for noise Repair if required
✘
5.5
Check the condition of the grease and
greasers (unless permanently lubricated)
Re-grease if required (Lithium soap
grease DIN 51825-K3N for fans type
K, K1, K2)
T >
70°C
✘
5.6 Check the condition of the fan motor
✘
6 - Control
6.1 Check the condition of the alarms
Acknowledge them after taking them
into consideration
✘
6.2 Check the operating set-points
✘
6.3 Check the operation of all probes
✘
To Next Page
Loading...