Daikin EUWY035BZ6Y [21/52] Capacity tables

• Applied Systems • Chillers

• Chillers • R-407C • EUWY-BZ6Y

5 Capacity tables

5 - 3 Capacity correction factor

When ethylene glycol is added in the chilled water circuit the following adjustment factors have to be taken in account.

Ethylene glycol adjustment factors

LWE Ethylene glycol Adjustment factors

(%) Water flow rate Pressure drop Power input Cooling capacity

12 30 1.11 1.20 1.005 0.98

5 30 1.11 1.24 1.005 0.98

4 10 1.02 1.08 - -

0 20 1.05 1.19 - -

-4 27 1.08 1.29 - -

-8 33 1.10 1.46 - -

-12 37 1.12 1.62 - -

NOTES

1 A relief valve is located at pump suction limiting water circuit

pressure at 3 bar.

2 Nitrogen pressure inside of the expansion tank must be equal to

the geometric height of the installation + 0.5 bar (in order to

avoid air entering in the water circuit).

3 Expansion tank must be inflated with nitrogen. Pressure must be

checked yearly.

4 For a good pump operation, pump suction pressure must be

between 0.5 and 2.5 bar when pumps runs.

SYMBOLS

LWE: Leaving water evaporator