Lennox EMEA FRIGA-BOHN eCO2Boost XS 1, Руководство по установке

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eCO2Boost XS 2
13
10.1. CO
2
charging process
9.3. Service valves connexion and handling
1.Untightened
the protection caps
3.Untightened
the compression packing
4.Service valve handling
2.Connect the CDU
to the manifold
Outlet Male G 3/8’’
Example of connexion
Inlet G 3/8’’ female
Outlet
¼ ’’ SAE
1. Check CO
2
amount for each evaporator and piping volume from graph. (see page 20)
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.
10. Charge more 50g CO
2
if high pressure is lower or discharge temperature is higher than table
value.
11. Continue “5.10” process until operation status within ±0.2MPa in pressure, ±5K in discharge
temperature for each target value.