Daikin EWWD320, Инструкция по установке, эксплуатации и обслуживанию

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Routine maintenance
Table 6 - Routine maintenance programme
List of Activities
Weekly
Monthly
(Note 1)
Yearly
(Note 2)
General:
Reading of operating data (Note 3) X
Visual inspection of machine for any damage and/or loosening X
Verification of thermal insulation integrity X
Clean and paint where necessary X
Analysis of water (5) 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 electrical resistance X
Measure compressor motor insulation using the Megger X
Refrigeration circuit:
Check for any refrigerant leakage X
Analyse compressor vibrations X
Condenser section:
Clean 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. Machine operating values should be read on a daily basis thus keeping high observation standards.
4. Periocity of condenser cleaning strongly depend from cooling water characteristics, the annual cleaning proposed is just fro
reference. “dirty” cooling water, may require to clean the condenser more often.
5. Check for any dissolved metals.
Refrigerant charge
ATTENTION
The units have been designed to operate with R134a refrigerant. So DO NOT USE refrigerants other than R134a.
ATTENTION
The addition or removal of refrigerant gas must be carried out in compliance with the laws and regulations in force.
ATTENTION
When refrigerant gas is added to or removed from the system, ensure proper water flow through the water heat
exchangers for the entire charge/discharge time. Interrupting the water flow during this procedure would cause the
exchangers to freeze with consequent breakage of internal tubes.
Damage caused by freezing makes the warranty void.
ATTENTION
Removal of the refrigerant and replenishing operations must be performed by technicians who are qualified to use the