D-EIMHP01601-22_00EN 20/25
for water exchangers pay attention if water rich in calcium carbonate is used. An increase in pressure drops or a decrease in thermal efficiency means that the
heat exchangers are clogged. In environments with a high concentration of airborne particles, it might be necessary to clean the condenser bank more often.
6. Units placed or stored in a Highly Aggressive Environment for long time without operation are still subject to those routine maintenance steps.
Table 10- Routine Maintenance Plan for Critical Application and/or Highly Aggressive Environment
Notes:
7.
Monthly activities include all the weekly ones.
8.
The annual (or early season) activities include all weekly and monthly activities.
9.
Daily reading of the operating values of the unit allows maintaining high observational standards.
10. Check for any dissolved metals.
11. Clean condenser banks with clean water and water heat exchangers with appropriate chemicals. Particles and fibres could clog up the exchangers, especially
for water exchangers pay attention if water rich in calcium carbonate is used. An increase in pressure drops or a decrease in thermal efficiency means that the
heat exchangers are clogged. In environments with a high concentration of airborne particles, it might be necessary to clean the condenser bank more often.
12.
Units placed or stored in a Highly Aggressive Environment for long time without operation are still subject to those routine maintenance steps.
Monthly Yearly/Seasonal
List of Activities
(Note 8)
Weekly
(Note 1)
(Note 2)
General:
Reading of operating data (Note 3)
X
Visual inspection of unit for any damage and/or loosening
X
Verification of thermal insulation integrity
X
Cleaning
X
Paint where necessary
X
Analysis of water (4)
X
Check of flow switch operation
X
Electrical Installation:
Verification of control sequence
X
Verify contactor wear
– Replace if necessary
X
Verify that all electrical terminals are tight
– Tighten if necessary
X
Clean inside the electrical control board
X
Visual inspection of components for any signs of overheating
X
Verify operation of compressor and electrical resistance
X
Measure compressor motor insulation
X
Refrigeration circuit:
Check for any refrigerant leakage (leak test)
X
Analyse compressor vibrations
X
Hydraulic circuit:
Check for any water leakage
X
Check hydraulic connections
X
Check the pressure at the exchangers water inlet
X
Clean the water filter
X
Check the glycol concentration
X
Check the water flow rate
X
BPHE:
Check the cleaning of the
BPHE
X
Summary of Contents for EWLQ014KCW1N
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