Servicing Intervals; Inspecting The Heat Transfer Liquid - Lauda ECO GOLD Operation Manual

8.3.2

Servicing intervals

Device part
Complete device
External condition of device
Heat transfer liquid
Inspect the heat transfer liquid
Bath vessel with drain tap
Sealing
External hoses
Material fatigue
Chiller
Clean the air-cooled condenser
Clean the screw-in sieve
Decalcify the cooling water circuit
Electronics
Overtemperature protection
Low-level protection
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!
60 / 137
Mandatory for initial operation
and before any longer unsuper-
vised operation, then with rec-
ommended frequency
Monthly
Every six months
Daily
Monthly
Monthly
Monthly
Quarterly
Quarterly
Quarterly
Critical temperature of the heat transfer liquid
Scalds, frostbite
Bring the heat transfer liquid to room temperature for the

analysis.
ECO Gold
Section Remarks
( 8.3.3)
External inspection
External inspection
( 8.3.4.1) Cooling thermostat
( 8.3.4.2) Cooling thermostat, water-
cooled
( 8.3.4.2) Cooling thermostat, water-
cooled
( 8.1.1)
( 8.1.2)
10/2019 i