Airwell BS 12 DCI Manuel de service télécharger pdf (Page 51)

6-7

PRESSURE CURVES

SM TQDCI 1-A.1 GB

6.2.4 Outdoor Unit Code correction Factor (F

)

ODU

Code

Cooling Heating

Suction

Pressure

Discharge

Pressure

Suction

Pressure

Discharge

Pressure

4 1.00 1.00 1.00 1.00

4.5 1.02 1.01 1.00 0.99

5 1.04 1.01 0.99 0.98

5.5 1.05 1.02 0.99 0.97

6 1.07 1.02 0.98 0.96

6.3 Calculation Example

Outdoor Unit

Quattro-80 DCI

Indoor Combination

FLO 9+FLO 12+K 12+FLO 18

Operation Mode

Cooling Mode

Conditions Indoor

22°CDB/15°WB

Conditions Oudoor

30°CDB

Tubing length

20m+10m+5m+25m = 60m

Cooling Pressure calculation:

Pressure [Barg] = Nominal x F

x F

Unit Code

Room A – FLO 9 1.0

Room B – FLO 12 1.5

Room C – K 12 1.5

Room D – FLO 18 2.0

ODU Code (Total) 6.0

Nominal Pressure

[Barg]

ODU Code Factor

)

Tubing (L) Factor

)

Corrected Pressure

[Barg]

Discharge 24.5 1.02 1.005 Pd= 24.5 x 1.02 x 1.005 = 25.11

Suction 9.0 1.07 0.988 Ps= 9.0 x 1.07 x 0.988 = 9.51

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Airwell BS 12 DCI Manuel de service Page 51

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