Panasonic 140 Installation And Maintenance Manual page 43

Tasks per components
3.10 Check fi lter cleanliness
Check that the hydraulic circuit is fi lled
3.11
properly
Check the condition of the expansion tank
3.12 (presence of excessive corrosion, or gas
pressure loss)
3.13 Check the water pump
Verify that low water pressure sensor works
3.14
perfectly
Record the water temperatures at the plate
3.15
heat exchanger inlet and outlet
4 - Electric circuit
Check the electrical voltage applied to the
4.1 unit, which must remain stable within the
tolerances specifi ed in the information plates
Check that the main supply cable is void of
4.2
alterations likely to impact the insulation
4.3 Check the grounding of the metallic structure Repair if required
4.4 Inspect the contacts
Check that all electrical connections of the
4.5
device are tight
Check the thermal protection relays of the
4.6
motors
Check the nominal intensity and condition of
4.7
the fuses
4.8 Check the condition of the condensers
Clean the electrical cabinet with compressed
4.9 air to remove any dust or other contaminants
building up
4.10 Check the motor windings are insulated
5 - Fan(s)
Check for lack of contamination, corrosion or
5.1
damage
5.2 Check proper fastening of the fan
5.3 Check the vanes to guarantee balancing
5.4 Check the bearings for noise
Check the condition of the grease and
5.5
greasers (unless permanently lubricated)
5.6 Check the condition of the fan motor
6 - Control
6.1 Check the condition of the alarms
6.2 Check the operating set-points
6.3 Check the operation of all probes
Actions
Clean
Replace if required
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
Replace if required
Replace if required
Tighten if required
Replace if required
Clean if required
Tighten if required
Clean if required
Repair if required
Re-grease if required (Lithium soap
grease DIN 51825-K3N for fans type
K, K1, K2)
Acknowledge them after taking them
into consideration
43
Months
1 3 4 12 24
Recommended inspection
and maintenance interval
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T >
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70°C
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