Daikin EWAD610TZ-SSB2 [7/104] General characteristics
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Daikin EWAD610TZ-SSB2 [7/104] General characteristics

Daikin EWAD190TZ-SLB1 [7/104] General characteristics
Evaporator
Single circuit models (Plate Heat Exchanger) Theunitisequippedwithadirectexpansionplatetoplate
type evaporator. This heat exchanger is made of stainless steel brazedplates and is covered with a 20mm
closedcellinsulationmaterial.Theexchangerisequippedwithanelectricheaterforprotectionagainstfreezing
downto–28°Candevaporatorwaterconnectionsareprovidedwithvictaulickit(asstandard).Theevaporator
has1circuit(onecompressor)andismanufacturedinaccordanceto2014/68/EU.Flowswitchonevaporator
availableasoption(shippedloose).Waterfilterisastandardoptionforsinglecircuitunit.
Notetheinstallationofthefilterismandatory.
Dual circuit models (Shell&Tube) Theunitisequippedwithadirectexpansionshell&tubeevaporatorwith
refrigerantevaporatinginsidethetubesandwaterflowingoutside.Thetubesareenhancedformaximumheat
transferandrolledintosteeltubesheetandsealed.
Theevaporatorsaresingle-passonboththerefrigerantandwatersidesforpurecounter-flowheatexchange
and low refrigerant pressure drops. Both characteristics contribute to the heat exchanger effectiveness and
totalunit’soutstandingefficiency.Thewatersideisdesignedfor10barofmaximumoperatingpressureandis
providedwithventsanddrain.
Theexternalshelliscoveredwitha10mmclosedcellinsulationmaterialandtheevaporatorwaterconnections
areprovidedwithvictaulickit(as standard).Eachevaporatorhas2circuits,oneforeachcompressorandis
manufactured in accordance to 2014/68/EU. Flow switch on evaporator available as option (shipped loose).
Waterfilterisnotavailableasoptionfromthefactory.
Notetheinstallationofthefilterismandatory.
Condenser Thecondenserismadeentirelyofaluminumwithflattubescontainingsmallchannels.Full-depth
louvered aluminum fins are inserted between the tubes maximizing the heat exchange. The Microchannel
technology ensures the highest performance with the minimum surface for the exchanger. The quantity of
refrigerantisalsoreducedcomparedtoCu/Alcondenser.
Specialtreatmentensureresistancetothecorrosionbyatmosphericagentsextendingthelifetime.
Note: for application in industrial, costal high pollutted urban environment or combinations of the above a
proper evaluation is needed to understand if, according to the specific environment, additional protections
measuresareneeded.
Condenser fans
SILVER
:
The ON/OFF condenser fans are propeller type with high efficiency design blades to maximize
performances.Thematerialofthebladesisglassreinforced resinandeachfanisprotectedbyaguard.Fan
motors are protected by circuit breakers installed inside the electrical panel as a standard. The motors are
IP54andaresuitableforusewithinverters(availableasoption).ThemotorsareIP54.
GOLD
:
The Inverter Driven (ACinverter type) condenser fans are propeller type with high efficiency design
blades to maximize performances. The material of the blades is glass reinforced resin and each fan is
protected by aguard. Fanmotors are protected by circuit breakers installed inside theelectricalpanel as a
standard.ThemotorsareIP54.
PLATINUM
:
Thecondenserfansare“brushless”(EC)typeandaremadewithsynchronousmotorsexcitedby
permanent magnets and with phase currents controlled by a PWM inverter integrated in the fan motor
housing,thatallowsoperationatdifferentspeeds.Withthistechnologythefansreachhighefficiencieswithan
extremelylownoiselevelacrossaverywidespeedrange.ThemotorsareIP54.
Electronic expansion valve The unit is equipped with the most advanced electronic expansion valves to
achieveprecisecontrolofrefrigerantmassflow.Astoday’ssystemrequiresimprovedenergyefficiency,tighter
temperaturecontrol,widerrangeofoperatingconditionsandincorporatefeatureslikeremotemonitoringand
diagnostics,theapplicationofelectronicexpansionvalvesbecomesmandatory.
Electronicexpansionvalvespossessuniquefeatures:shortopeningandclosingtime,highresolution,positive
shut-off function to eliminate use of additional solenoid valve, continuous modulation of mass flow without
stressintherefrigerantcircuitandcorrosionresistancestainlesssteelbody.
Electronicexpansion valves are typically working with lower ΔPbetween highand lowpressureside, than a
thermostatic expansion valve.The electronicexpansion valveallows thesystemtowork withlow condenser
pressure (winter time) without any refrigerant flow problems and with a perfect chilled water leaving
temperaturecontrol.
7/104
GENERAL CHARACTERISTICS

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