Sanden Vendo CDU-L R06A2B, Руководство по установке

Страница: 22 / 31

Modifiez le style du titre
10.1. CO
2
charging process
22
Charging CO
2
procedure
1. Check CO
2
amount for each evaporator and piping volume from graph. (see page 23)
2. Set CO
2
vessel on the weight scale, purge air inside charge tube, and 0 setting scale before charging.
3. Vacuum breakage (gas state)
4. Charge CO
2
without compressor running (liquid state) (charging from suction side service valve).
5. Compressor start running(push operation SW) if CO
2
charging stop before reaching target weight.
6. Close service valve after CO
2
weight reaching target amount.
7. Keep & check cooling operation until evaporator air or cabinet temperature is reached at target temperature.
8. Check low pressure until reaching target & operation conditions(both of CO
2
& air side) are stable.
9. Compare actual high pressure & discharge pressure from the target table. (see page 24)
10. Charge more 50g CO
2
if high pressure is lower or discharge temperature is higher than table value.
11. Repeat the operation if necessary.