D-EIMAC00208-16EU - 18/192
Periodic obligatory checks and starting up of
appliances under pressure
The units are included in category IV of the classification
established by the European Directive PED 2014/68/EU.
For chillers belonging to this category, some local regulations
require a periodic inspection by an authorized agency. Please
check with your local requirements.
Table 2 - Routine maintenance programme
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 electrical resistance
X
Measure compressor motor insulation using the Megger
X
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 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.
Important information regarding the refrigerant used
This product contains fluorinated greenhouse gases
. Do not vent gases into the atmosphere.
Refrigerant type:
R134a
GWP(1) value:
1430
(1)GWP =
Global Warming Potential
The refrigerant quantity necessary for standard operation is indicated on the unit name plate.
Real refrigerant quantity charged in the unit is listed on a silver sticker inside the electrical panel.
Periodical inspections for refrigerant leaks may be required depending on European or local legislation.
Please contact your local dealer for more information.
Summary of Contents for EWAD-D-H 200
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