ECO GOLD
25/08/2011/ YACE0088 Maintenance 57
8.3.2 Servicing intervals to VDI 3033
Device part Mandatory for initial opera-
tion and before any longer
unsupervised operation,
then with recommended
frequency
Section Remarks
Complete device
External condition of device Monthly
Heat transfer liquid
Inspect the heat transfer liquid Every six months (Ì 8.3.3)
Bath vessel with drain tap
Sealing Daily External inspection
External hoses
Material fatigue Monthly External inspection
Chiller
Clean the air-cooled condenser Monthly (Ì 8.3.4.1) Cooling thermostat
Clean the plug-in sieve Monthly (Ì 8.3.4.2) Cooling thermostat, water-
cooled
Decalcify the cooling water cir-
cuit
Quarterly (Ì 8.3.4.2) Cooling thermostat, water-
cooled
Electronics
Overtemperature protection Quarterly (Ì 8.1.1)
Low-level protection Quarterly (Ì 8.1.2)
Bring the device parts and accessories to room temperature before touching them.
8.3.3 Inspecting the heat transfer liquid
Contaminated or degenerated heat transfer liquid must be renewed.
The heat transfer liquid is to be checked for its usability as required, but at least every six months. Further
use of the heat transfer liquid is only permissible if the inspection indicates this.
The test of the heat transfer liquid takes place according to DIN 51529; ("Testing and assessment of used
heat carrier media"). Source: VDI 3033; DIN 51529.
Caution !
Critical temperature of the heat transfer liquid
Scalds, frostbite
• Bring the heat transfer liquid to room temperature for
the analysis.
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