Danfoss ETS 250 User Manual

Installation guide
Electric expansion valve, type ETS 250 and ETS 400
Electric regulating valve, type KVS 42
034R9799
034R9799
© Danfoss | DCS (sw) | 2017.10
DKRCC.PI.VD1.B7.ML / 520H10638 | 1
KVS
Danfoss 34G31.14
ETS
Danfoss 34G68.15
Application
Anwendung
Application
Aplicación
应用
Mounting
Einbau
Montage
Installación
安装
* Flow direction for liquid
verification using the sight glass
ETS 250*
ETS 400*
KVS 42 (without sight glass)
Allowable ambient temperature /
Zulässige Umgebungstemperatur /
Température ambiante admissible /
Temperatura ambiente permisible /
允许的运行温度
Max. 60 °C / 140 °F
Min. -40 °C / -40 °F
Compatible refrigerants / Kältemittel Kompati-
bilität / Fluides compatibles / Compatibilidad de
refrigerantes / 适用的冷媒
R22, R134a, R404A, R407A, R407C, R407F, R422B,
R422D, R438A, R448A, R449A, R450A, R452A, R507,
R513A, R410A, R1234ze
Inlet fluid temperature /
Eingangstemperaturbereich /
entrée température du fluide /
entrada temperatura líquida / 入口流体温度
Max. 65 °C / 149 °F
Min. -40 °C / -40 °F
Max. working pressure /
Max. zul. Betriebsüberdruck / Pression de service
max. / Presión de trabajo máx. / 最大工作压力
PS / MWP : 34 bar / 493 psig
Nominal voltage / Nennspannung /
Tension nominale / Voltaje nominal / 名义电压
12 V DC
Phase current / Phasenstrom / Phase électrique /
Corriente de fase / 相电流
100 mA
Resistance / Widerstand / résistance électrique /
Resistencia / 电阻
52 Ω
Stepper motor type / Schrittmotortype / Type de
moteur pas à pas / Tipo de motor a pasos /
步进电机形式
Bipolar / 双极
Flow direction
Durchflussrichtung
Sens d’écoulement
Dirección del flujo
流向

Danfoss ETS 250 Specifications

General

Enclosure rating	IP20
Housing Material	Plastic
Protocol	Modbus RTU
Output Signal	PWM
Relative Humidity	5% to 95% (non-condensing)

Summary

Technical Specifications

Compatible Refrigerants

List of refrigerants compatible with the ETS 250/400 and KVS 42 valves.

Allowable Ambient Temperature

Specifies the maximum and minimum allowable ambient temperatures for operation.

Inlet Fluid Temperature

Defines the temperature range for the fluid entering the valve.

Nominal Voltage

Indicates the specified voltage for the stepper motor.

Stepper Motor Type

Identifies the type of stepper motor used in the valve.

Maximum Working Pressure

Specifies the maximum permissible operating pressure for the valve.

Phase Current

Details the current per phase for the stepper motor.

Resistance

Provides the electrical resistance value for the stepper motor coils.

Flow Direction

Flow Direction Verification

Guidance on verifying liquid flow direction using the sight glass.

Application

Mounting

Assembly and Connection Procedures

Brazing Instructions

Guidance on the brazing process for valve installation.

Disassembling the Valve

Steps for safely taking apart the valve.

Assembling the Valve

Instructions for putting the valve together.

Electrical Connection

Details on connecting the valve's electrical components.

Safety Warnings

Important safety precautions for handling and connecting the valve.