Danfoss ETS 500P, ETS 800P Data sheet

Data sheet

Electric expansion valve

Type ETS 500P, ETS 800P

ETS 500P, ETS 800P are extension to current electric expansion valves ETS program by integrate dual ETS 250 or dual ETS 400 in parallel. They can be used for precise liquid injection in evaporators for air conditioning and refrigeration applications with high capacity.

The valve piston and linear positioning design is fully balanced, providing bi-ﬂow feature as well as solenoid tight shut-oﬀ function in both ﬂow directions.

The valve design uses bi-polar drive providing very precise ﬂow regulation.

ETS 500P and ETS 800P are compatible with electronic control solutions from Danfoss and other manufacturers.

Features • Refrigerants: R134a, R513A, R1234ze,

other refrigerants are on request.

• Rated capacity for R134a: ETS 500P: 471 TR / 1652 kW ETS 800P: 640 TR / 2245 kW

• Maximum working pressure: 25 bar / 363 psig.

• Compatible with oil free applications.

• Precise positioning for optimal control of liquid injection.

• Balanced design.

• Built-in sight glass with moisture indicator.

• Can be operated with ﬂow in both directions and are solenoid tight.

• Low power consumption.

• Danfoss controller type EKE 1 series can be used to drive ETS 500P and ETS 800P.

• For manual operation and service of ETS valves an AST-G service driver is available.

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Data sheet | Electric expansion valve, type ETS 500P, ETS 800P

Approvals

Technical data

Electrical data

RoHS

Compatible refrigerants

Refrigerant oil All mineral oils and ester oils and also support oil free applications.

Comply with P.E.D. Yes

Max. opening pressure diﬀerential (MOPD) normal ﬂow

Max. opening pressure diﬀerential (MOPD) reverse ﬂow

Max. working pressure (PS/MWP) 25 bar (363 psig)

Inlet ﬂuid temperature -40 °C – 65 °C (-40 °F – 149 °F). For higher temperature valve, please contact Danfoss.

Ambient temperature -40 °C – 60 °C (-40 °F – 140 °F)

Material of Construction Body and AST enclosure in brass, connections in copper.

Motor enclosure IP67

Stepper motor type Bi-polar - permanent magnet

Step mode 2 phase full step

Phase resistance 52 Ω ±10%

Phase inductance 85 mH

Step angle

Nominal voltage Constant voltage drive: 12 V dc -4% – 15%

Phase current Using chopper drive: 100 mA RMS -4% – 15%

Holding current

Max. total power Voltage / current drive: 5.5 / 1.3 W (UL: NEC class 2)

Step rate

Total steps For each ETS 250 or ETS 400: 3810 [160 / -0] steps

Full travel time For each ETS 250 or ETS 400: 25.4 / 12.7 sec. (voltage / current)

Lifting height For each ETS 250 or ETS 400: 17.2 mm (0.7 in.)

Reference position Overdriving against the full close position

Electrical connection M12 connector

R134a, R513A, R1234ze. For other refrigerants, please contact your local Danfoss representative.

25 bar (363 psig)

10 bar (145 psig)

7.5° (motor)

0.9° (lead screw) Gearing ration 8.5:1. (38/13)2:1

Constant voltage drive: Depends on application Chopper drive: full current allowed (100% duty cycle)

Constant voltage drive: 150 steps/sec Chopper current drive: 0 – 300 steps/sec. 300 recommended

Compatible Danfoss controllers Danfoss EKE 1 series

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Data sheet | Electric expansion valve, type ETS 500P, ETS 800P

Design

Note:

Flow direction from A to B refers to the normal ﬂow

1. M12 connector

2. Glass seal

3. AST motor housing

4. Stepper motor

5. Bearing

6. Spindle

7. Top Nut

8. Valve piston

9. Sight glass with indicator

10. Valve seat

11. Valve cone

Sight glass and indicator

Electrical wiring

Section view of single

ETS 250 / ETS 400 on ETS 500P / ETS 800P

ETS 500P and ETS 800P are equipped with sight glass with moisture indicator. The physical position of the piston in the valve can be checked through the sight glass.

Insuﬃcient sub cooling can produce ﬂash gas which is visible through the sight glass. The moisture indicator in the sight glass indicates dry or wet state of the refrigerant by changing its colour.

Connections

Danfoss

34G212.10

Note:

Electrical check of stepper motor and wiring: Coil I = 52 ohm, coil II = 52 ohm

A2 black

A1 white

B1 red

B2 green

34G210.10

34G211.10

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200

400

600

800

1000

1200

1400

1600

1800

0 20 40 60 80 100

ETS 500P

500

1000

1500

2000

2500

0 20 40 60 80 100

ETS 800P

Data sheet | Electric expansion valve, type ETS 500P, ETS 800P

The dual ETS 250 on ETS 500P and dual ETS 400 on ETS 800P are supposed to open/close simultaneously, thus they should be connected to one common EKE 1 series controller.

To make one controller drives dual ETS 250 / ETS 400, follow next additional steps to set the controller correctly prior to commissioning :

1. Go to “Valve selection“ in “Valve conﬁguration”.

2. Select “ETS 250” (for ETS 500P) or “ETS 400” (for ETS 800P)

3. Change valve type to “User deﬁned valve”.

4. Change valve drive current to 282 mA. (Single ETS 250 / ETS 400 requires 141 mA peak current. ETS 500P / ETS 800P requires 2 times of the current as of the single valve. )

5. Done.

Stepper motor switch sequence

Capacity

Normal ﬂow direction

STEP

↑ CLOSING ↑

1 + - + 2 + - - + 3 - + - + 4 - + + 1 + - + -

If the controller driving the ETS valve is from another manufacturer than Danfoss or a custom design, the following points must be considered in order to overcome potential step loss.

Coil I Coil II

Red Green White Black

↓ OPENING ↓

b. The amount of lost steps may increase as a

function of the amount of changes of the opening degree. Such designed controller should be able to compensate the lost steps after a deﬁned number of changes in opening

a. To ensure total closing of the valve, the

degree.

controller should have a function to overdrive the valve in the closing direction. It is recommended to overdrive ten percent of the full step range at appropriate intervals.

Warning:

At power failure the ETS valve will remain in the opening position it has at the moment of power failure, unless a safety device in the form of a battery backup is installed.

ETS 500P ETS 800P

[kW]

Capacity based on: R134a Te = 5 °C / 41 °F T

= 32 °C / 89.6 °F

Tl = 28 °C / 82.4 °F

Coolselector2®

For easy and precise selection of valve, use Danfoss’ CoolSelector2® software. You can ﬁnd the ETS valves on the group, “Electronic expansion valves”. You can download it from http://coolselector.danfoss.com

Opening [%] Opening [%]

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Data sheet | Electric expansion valve, type ETS 500P, ETS 800P

Ordering ETS 500P / ETS 800P

Ordering EKE 1 series controllers

M12 angle cable

Note:

The cable will be supplied seperately.

Rated capacity1 Connection

Type

ETS 500P 1652 471 1518 433 1289 367 2 5/8 × 3 1/

ETS 800P 2245 640 2060 587 1760 501 3 1/8 × 3 1/

ETS 800P 2245 640 2060 587 1760 501 2 5/8 × 2 5/

) The rated capacity is based on: Evaporating temperature te : 5 °C / 40 °F Liquid temperature tl : 28 °C / 82 °F Condensing temperature tc : 32 °C / 90 °F Full stroke opening in normal ﬂow direction

Type Pack format Code no. Electronic controller EKE 1A Single pack 080G5300 Electronic controller EKE 1B Single pack 080G5350 Electronic controller EKE 1C Single pack 080G5400

R134a R513A R1234ze ODF × ODF (A × B) Code no.

[kW] [TR] [kW] [TR] [kW] [TR] [in.] Single pack

Note:

The controller will be supplied seperately.

M12 angle female connector is intended for use with a standard M12 male connector, available on stepper motor valves. This cable is designed to oﬀer high ﬂexibility and small outer diameters with tensile strength. The angle way M12 cable consist of paired, twisted wires, which decreases mutual inﬂuence between signals transmitted along the cable and reduces inﬂuence of external sources of interference. The cables thus provides a higher degree of protection against lost steps compared to other cables.

034Z1017

034Z1018

034Z1019

Approvals

Speciﬁcation

Ordering

Dimensions

RoHS

Jacket PVC - black Cable outer sheath Oil - resistant Water proof rating IP 67 Operating temperature range -40 – +80 °C Wire type Twisted pair, cross section 20 AWG / 0.5 mm2 Cable outer diameter 7.0 mm Minimum bending radius 10 x cable diameter Cable combustibility / test Flame retardant / VW-1 / CSA FT - 1 M12 standard EN 61076-2-101 Reference standard UL style 2464 and DIN VDE 0812 LVD directive 2014/35/EU

Cable Cable length (L) Insulation Packing format Code no.

PVC - black

2 + 0.089 m / 6.6 + 0.3 ft SR-PVC Single pack 034G7073

8 + 0.3 m / 26.2 +1 ft SR-PVC Single pack 034G7074

34G209.10

Ø 63 mm / 1/4 inch

8 + 0.3 meters / 26.2 +1 feet

35 mm / 1.4 inch2 + 0.089 meters / 6.6 + 0.3 feet

49 mm / 1.9 inch

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Dimensions and weights

ETS 500P

195 mm [7.68 in]

4.6 kg / 10.1 lb.

ETS 800P

[4.80 in]

122 mm

[4.80 in]

122 mm

[4.80 in]

122 mm

38 mm

[1.50 in]

[Ø2 5/8 in]

Ø66.68 mm

38 mm

[1.50 in]

204 mm [8.01 in]

85 mm

[3.35 in]

375 mm

[14.74 in]

89 mm

[3.48 in]

65 mm

[2.54 in]

84 mm

[3.29 in]

86 mm

Ø79.38 mm

5.4 kg / 11.9 lb.

[3.39 in]

[Ø3 1/8 in]

[6.44 in]

164 mm

86 mm

[3.39 in]

Code no. A B C

034Z1018

034Z1019

Ø79.38 mm/

Ø 3 1/8 in.

Ø66.68 mm/

Ø 2 5/8 in.

Ø79.38 mm/

Ø 3 1/8 in.

Ø66.68 mm/

Ø 2 5/8 in.

164 mm/

6.46 in.

158 mm/

6.21 in.

Danfoss ETS 500P, ETS 800P Data sheet

Specifications and Main Features

Frequently Asked Questions

User Manual