Daikin EWWD850BJYNN [10/21] 2 electrical specifications

• Chillers • R-134A • EWWD-BJYNN

• Hydronic Systems • Chillers

3 Specifications

Safety Devices High pressure (pressure switch)

Low pressure (pressure switch)

Compressor thermal

High discharge temperature on the compressor

Phase monitor

Star/delta transition failed

Low delta pressure between suction and discharge

Notes Nominal cooling capacity and power input are based on: 12/7 °C entering/leaving evaporator water temperature; 30/

35 °C entering/leaving condenser water temperature.

Unit length includes modulating condenser water flow valve.

3-2 ELECTRICAL SPECIFICATIONS

EWWD380BJYNN EWWD460BJYNN EWWD550BJYNN EWWD750BJYNN EWWD850BJYNN EWWD900BJYNN EWWDC10BJYNN EWWDC11BJYNN

Power Supply Name YN

Phase 33333333

Frequency Hz 50 50 50 50 50 50 50 50

Voltage V 400 400 400 400 400 400 400 400

Voltage

Tolerance

Minimum % -10%

Maximum % +10%

Unit Starting Current A 367 367 367 535 550 561 575 588

Nominal Running Current

Cooling

A 112 129 148 224 244 258 277 295

Maximum Running Current A 137 178 205 302 331 357 385 410

Max unit current for wires

sizing

A 142 183 210 307 336 362 390 415

Compressor Starting Method Star-delta

Notes Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%.

Max unit starting current: Absorbed current of compressor n°1 at 75% + starting current of the other compressor.

Max unit current for wires sizing : compressor FLA (Full Load Ampere) + fans current.

3-1 TECHNICAL SPECIFICATIONS

EWWD380BJYNN EWWD460BJYNN EWWD550BJYNN EWWD750BJYNN EWWD850BJYNN EWWD900BJYNN EWWDC10BJYNN EWWDC11BJYNN