Integral T process thermostats
21/01/2019 / YAWE 0026 Maintenance 89
8.3 Servicing intervals
Mandatory for initial
operation and before any
longer unsupervised
operation, then with
recommended frequency
External condition of the
device
Analysis of heat transfer
liquid
Half-yearly (and as required)
External visual inspection
External visual inspection
Cleaning of air-cooled
condenser
Decalcifying the water
cooling circuit
Overtemperature protection
Low level alarm / warning
8.4 Inspecting the heat transfer liquid
If the heat transfer liquid becomes contaminated or degenerated, it should be renewed.
If required, the heat transfer liquid should be checked for fitness for use (e.g. when changing the
method of operation), or at least half-yearly. 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.
8.5 Protective cut-outs and fuses
Single-phase units are protected against excessive current by an over current cut-out built into the
mains switch. This switches off the power in case of a fault. Resetting as for switching on. If it cuts
out repeatedly, contact the service organisation.
3-phase units are fitted internally with overload cut-outs. These are accessible after removing the
side panels and possibly the cover.
Warning: Only by a qualified electrician!
If it cuts out repeatedly after reset, contact the service organisation ( Section 8.8).
To Next Page
Loading...
Need help?
General
