36 WDAT-SL3 FC 200.2-580.2 M08S40E15-01
8.12 Screw compressors - Periodical checks
Operating hours 100 1000 5000 10000 15000 20000 25000 30000
Vibrations / Noise CCCCCCCC
Oil level CCCCCCCC/R
Oil lterCCCCC/R
Filter the suction C C C C
Electric insulation CCCCCCC
Bearings C/R
check valve CCCCCCC
C = CHECK
R = replace
NO PUMP-DOWN !
8.13 System discharge
1. evacuate the system
2. It is possible to limit the absorbed electric power with an external signal 0-10 Vcc or 4-20mA.
3. evacuate the exchanger, use all the cocks presents
4. use compressed air to blow the exchanger
5. dry completely the exchanger by an hot air jet; for greater safety ll the exchanger with glycoled solution
6. protect the exchanger from the air
7. remove the drain plugs to the pumps
Any anti-freeze liquid contained in the system should not be discharged freely as it is a pollutant.
It must be collected and reused.
Before starting a washing the plant.
Example
A. emptying evaporator
B. emptying pump
It’s recommended that the re-start after the stopping period is performed by a qualied technician, especially after seasonal stops or seasonal
switching.
When restarting, refer to what is indicated in the “start-up” section.
Schedule technical assistance in advance to avoid hitches and to guarantee that the system can be used when required.
8.14 Insulations
Check the condition of the insulations: if necessary apply glue and and renew the seals.
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