Daikin EWAT016CZN-A1, Инструкция по установке, эксплуатации и обслуживанию

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EWYT~CZ / EWAT~CZ DEIMHP0140521_00EN
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List of Activities (Note 8) Weekly
Monthly
(Note 1)
Yearly/Seasonal
(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
Analyze compressor vibrations
X
Hydraulic circuit:
Check for any water leakage
X
Check hydraulic connections
X
Check the pressure at the pump inlet
X
Clean the water filter
X
Check the glycol concentration
X
Check the water flow rate
X
Check the safety valve
X
Coil section:
Checking the cleaning of the air heat exchanger (Note 6)
X
Check the cleaning of water heat exchangers (Note 6)
X
Verify that fans are well tightened
X
Verify coil fins
X
BPHE:
Check the cleaning of the BPHE
X
Table 11 –
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 fibers 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.