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Closed water circulation system: Water circulation pump lift ≥ (Pipe resistance of the water system + Partial
resistance of the water system + Water pressure drop of the unit) × 1.1
Open water circulation system: Water circulation pump lift ≥(Static resistance of the water system + Pipe resistance
of the water system + Partial resistance of the water system + Water pressure drop of the unit) × 1.1
In the case that multiple units share the same pump, the pump lift is calculated according to the circuit that has the
maximum resistance (usually the unit that is farthest away from the pump).
NOTE: THE WATER FLOW OF THE UNIT SHOULD CALCULATE ACCORDING THE WATER FLOW RANGE.
Water ow range
Model UAL160A5 UAL210A5
Flow
range
Max. value (m
3
/h)
208V~230V/3Ph/60Hz 11.87 14.43
460V/3Ph/60Hz 11.87 14.43
380V/3Ph/60Hz 11.27 14.43
Rated value (m
3
/h)
208V~230V/3Ph/60Hz 9.13 11.1
460V/3Ph/60Hz 9.13 11.1
380V/3Ph/60Hz 8.67 11.1
Min. value (m
3
/h)
208V~230V/3Ph/60Hz 6.39 7.77
460V/3Ph/60Hz 6.39 7.77
380V/3Ph/60Hz 6.07 7.77
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