Lauda RE 1050 G, Operating Instructions Manual

Page: 87 / 101

ECO GOLD
28.04.10/ YACE0088
Maintenance
87
9.4 Servicing and repair
9.4.1 Servicing intervals to VDI 3033
Device part Frequency Remarks
Each time device is put into operation and then:
Complete device
External condition of device Monthly
Heat transfer liquid
Analysis of heat transfer liquid (
Ì
9.4.2)
Bath vessel with drain tap
Sealing Daily External inspection
External hoses
Material fatigue Monthly External inspection
Chiller
Cleaning of condenser (
Ì
9.4.3) Cooling thermostat
Electronics
Overtemperature protection (
Ì
9.1.1)
Low-level protection (
Ì
9.1.2)
9.4.2 Inspecting the heat transfer liquid
If the heat transfer liquid becomes contaminated or degenerated, it should be renewed (
Ì
6.3 and 6.4).
If necessary, the heat transfer liquid should be checked for fitness for use (e.g. with a change of application),
or at least once yearly. Further use of the heat transfer liquid is only permissible if the inspection indicates
this.
The heat transfer liquids should be inspected according to DIN 51529.
9.4.3 Cleaning the condenser
−
The cooling circuit is largely maintenance-free. De-
pending on the operating time and the amount of dust
present in the device environment, remove the dust
from the condenser at intervals of two weeks or longer.
−
To do this, remove the front grille by grasping it at the
bottom with both hands and pulling the grille to the
front.
−
Then brush down the condenser and, where neces-
sary, blow it out with compressed air.
−
To avoid damage, remove the front grille slowly and carefully.