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Daikin EWADC13T-XRC2 [18/23] D eimac01502 18_02en 18 23
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D–EIMAC01502–18_02EN - 18/23
There are two different levels of maintenance, which can be chosen according to the type of application (critical/non critical)
or to the installation environment (highly aggressive).
Examples of critical applications are process cooling, data centres, etc.
Highly Aggressive Environments can be defined as the follows:
• Industrial environment (with possible concentration of fumes result of combustion and chemical process)
• Costal environment;
• Highly polluted urban environment;
• Rural environment close to of animal excrement and fertilizers, and high concentration of exhaust gas from diesel
generators.
• Desert areas with risk of sandstorms;
• Combinations of the above
Table 2 lists all Maintenance activities for standard applications and standard environment.
Table 3 lists all Maintenance activities for critical applications or highly aggressive environment.
Following below instructions is mandatory for cases listed above, but also advised for units installed in standard
environments.
Table 2 – Standard Routine Maintenance Plan
List of Activities
Weekly
Monthly
(Note 1)
Yearly/Seas
Onal (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
Clean and paint where necessary
X
Analysis of water (6)
X
Check of flow switch operation
X
Electrical:
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 oil heater
X
Measure compressor motor insulation using the Megger
X
Clean air intake filters of the electrical panel
X
Verify operation of all ventilation fans in the electrical panel
X
List of Activities
Weekly
Monthly
(Note 1)
Yearly/Seas
Onal (Note
2)
Refrigeration circuit:
Check for any refrigerant leakage
X
Verify refrigerant flow using the liquid sight glass – Sight glass full
X
Verify filter dryer pressure drop
X
Verify oil filter pressure drop (Note 5)
X
Analyse compressor vibrations
X
Analyse compressor oil acidity (7)
X
Condenser section:
Clean water rinse condenser banks (Note 4)
X
Verify that fans are well tightened
X
Verify condenser bank fins – Comb if necessary
X
Notes:
1. Monthly activities include all the weekly ones.
2. The annual (or early season) activities include all weekly and monthly activities.
3. Unit operating values should be read on a daily basis thus keeping high observation standards.
4. In environments with a high concentration of air-borne particles, it might be necessary to clean the condenser bank more often.
5. Replace the oil filter when the pressure drop across it reaches 2.0 bar.
6. Check for any dissolved metals.
7. TAN (Total Acid Number) : 0,10 : No action
Between 0.10 and 0.19 : Replace anti-acid filters and re-check after 1000 running hours. Continue to replace filters until the TAN is lower
than 0.10.
0,19 : Replace oil, oil filter and filter dryer. Verify at regular intervals.
Содержание
- Air cooled chiller with screw compressor 1
- Contents 2
- D eimac01502 18_02en 2 23 2
- List of figures 2
- Original instructions 2
- D eimac01502 18_02en 3 23 3
- D eimac01502 18_02en 4 23 4
- D eimac01304 17en 5 23 5
- Introduction 5
- D eimac01502 18_02en 6 23 6
- General information 6
- Operating limits 6
- Receiving the unit 6
- D eimac01502 18_02en 7 23 7
- D eimac01502 18_02en 8 23 8
- Mechanical installation 8
- D eimac01502 18_02en 9 23 9
- D eimac01502 18_02en 10 23 10
- D eimac01502 18_02en 11 23 11
- D eimac01502 18_02en 12 23 12
- D eimac01502 18_02en 13 23 13
- D eimac01502 18_02en 14 23 14
- Sound protection when sound levels require special control great care must be exercised to isolate the unit from its base by appropriately applying anti vibration elements supplied as an option flexible joints must be installed on the water connections as well 5 water piping 14
- The water system must have 14
- D eimac01502 18_02en 15 23 15
- D eimac01502 18_02en 16 23 16
- D eimac01502 18_02en 17 23 17
- Electrical installation 17
- Maintenance 17
- Operation 17
- D eimac01502 18_02en 18 23 18
- D eimac01502 18_02en 19 23 19
- D eimac01502 18_02en 20 23 20
- Periodic obligatory checks and starting up of appliances under pressure 20
- Service and limited warranty 20
- D eimac01502 18_02en 21 23 21
- Important information regarding the refrigerant used 21
- D eimac01502 18_02en 22 23 22
- Disposal 22
- D eimac01502 18_02en 23 23 23
- Daikin applied europe s p a 23
- Via piani di santa maria 72 00072 ariccia roma italia tel 39 06 93 73 11 fax 39 06 93 74 014 http www daikinapplied eu 23
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