Hitachi HIGHLY WHP08750VCDNC9AU Manual de usuario

HitachiHighly

Rollkolbenverdichter

Rotary Compressors

Spezifikation

Installation Manual

WHP08750VCDNC9AU

RIES GmbH, Rudolf-Diesel-Str. 10, D 64569 Nauheim, GERMANY

Phone: +49 6152 9741 0, Fax: +49 6152 9741 21, Email: [email protected], Website: www.ries-gmbh.de

R 410A - R 134a - R 513A

23,2 cm3/rev

1000 - 7200 min-1

DC /BLDC

Table of Contents

1. WHP08750VCDNC9AU Specifications ———————1～4

1.Scope of application

2.Compressor specifications

3.Motor parameters

4.General characteristics

5.Parts and drawings list

2. Standards for the use of special

compressors for heat pump water heaters ———5～14

3. Basis and rules for acceptance ——————————— 15

1.Acceptance basis

2. Acceptance rules

4. Drawings

5. modify the experience

————————16～32

————————Appendix

SUBJECT

Model WHP08750VCDNC9AU SPECIFICATION PAGE：1/32

1. SCOPE

This specification is applied to SHANGHAI HIGHLY

Heat pump water heater compressor.

2. SPECIFICATION OF THE MODEL

Item Spec

2.1 Model Type WHP08750VCDNC9AU

2.2 Power source input to HITACHI

inverter （SHEC

220V

Rated voltage

Rated frequency

Phase

50 Hz

1phase

2.3 Output 2200W(at R410A 3300rpm)

2.4 Application Heat pump water heater

2.5 Refrigerant R410A/R134a/*R513A

2.6 Displacement 23.2ml/rev

2.7 Allowable frequency range 1000～7200min-1

2.8 Oil HAF68D1C or equivalent 630±20ml

2.9 Allowable amount of refrigerant

charge

Below 2100g

2.10 Compressor cooling Forced air

2.11 Hermetic Terminal 1/4”quick connect type

2.12 Space volume of inner case

1145cm3

2.13 Compressor weight 13.6 kg incl. Oil

2.14 Motor Type

Insulation class

Direct current brushless motor E class

R410A R134a *R513A

2.15 Nominal Heating Capacity (see *)

8750 4100 4212

2.16 Compressor Rated Input (see *) 2150 900 932

2.17 COP

4.05 4.56 4.52

SUBJECT

Model WHP08750VCDNC9AU SPECIFICATION PAGE：2/32

Item Spec

2.18 Current （ A ） 12/4.9/4.9（compressor input）

2.19 Noise （dB（A））(see appendix) Below 78

2.20 Vibration （m/s2）（see appendix） Below 5

2.21 Natural frequencies of the compressor 13Hz/20Hz/21Hz

（Should try to avoid or pass quickly）

2.22 Capacity measuring conditions and

noise & vibration measuring condition

Rotational speed

Evaporating temp.

Condensing temp.

Liquid temp.

Ambient temp.

Return gas temp.

Wind speed

3300min-1

7.2 ℃

54.4℃

46.1℃

35.0℃

2 m/s

*.Nominal heating capacity equals refrigerant capacity adding motor input. Refrigerant capacity and

motor input are measured by secondary. Refrigerant calorimeter Methods of GB5773 by Shanghai Hitachi

Electrical Appliances Co.,Ltd. Allowable heating capacity should be more than 95% of the nominal

heating capacity and allowable motor input should be less than 107% of nominal motor input.

3. MOTOR PARAMETER

Item Spec 数 Explanation

3.1 Rotor Pole（Pole） 4 ——

3.2 Rated Frequency Range

（Hz） 30-240

Electrical Frequency，Relating to

VDCmax of Inverter

3.3 Demagnetizing

Curren（A） 32.0A

Peak Current，at 120℃，-5%

Demagnetizing Rate

3.4 Inductance Ld（mH） Sheet 1 ——

3.5 Inductance Lq（mH） q Sheet 1 ——

SUBJECT

Model WHP08750VCDNC9AU SPECIFICATION PAGE：3/32

Item Spec explanation

3.6 Winding Resistance（Ω）

（20℃） 0.856 Line-to-Line

3.7 Voltage Constant

（Vrms/krpm） 33.50 Line-to-Line

3.8 Torque Constant

（N·m/Arms） 0.52 Torque/Current

3.9 Inertia （Kg·m2） 0.000361 ——

3.10 Flux Φa（Wb） 0.1310

φ(Per Phase，Peak)=

3.11 Magnet Material NdFeB

4. CHARACTERISTICS

4.1The surface of the compressor is painted to black, without obvious flaw ,impact scar, paint peel

off, rust and so on.

4.2. Indication

Compressor model type, manufacturing data are clearly indicated on the surface of compressor。

4.3. Residual moisture 250mg MAX

4.4. Residual impurities 150mg MAX

（RMS） 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0

Lq(mH) 9.55 9.27 8.77 8.34 8.00 7.72 7.49 7.29 7.12 6.97 6.83 6.70

Ld(mH) 5.69 5.61 5.53 5.44 5.35 5.27 5.20 5.12 5.05 4.97 4.90 4.82

SUBJECT

Model WHP08750VCDNC9AU SPECIFICATION PAGE：4/32

5 PARTS AND DRAWING LIST

PARTS NAME QTY/SET DRAWING NO. REMARKS

Compressor 1 4CYCL0051 Dimensioned

sketch

Mounting

Parts

Rubber grommet

Bolt

Nut

4CYC00754

4CYC00791

Electrical

Parts

Thermostat

Terminal cover

Gasket

Nut

Rubber washer

Sleeve

4CYC01036

4CYC00988

4CYC01047

3CYC00004

4CYC00174

4CYC01042

4CYC01039

Lead routing

Pressure guarantee

Chart

Oil level datum

Notes for rotational

speed change

Performance curse

Appendix

*. Out of supply, for reference.

DC INVERTER COMPRESSOR CRITERIA

PAGE：5/32

COMPRESSOR CRITERIA

1 Strictly observe the specification

The compressor should be used in specifications written in this “compressor specification” and

not be used in specifications outside it. Moreover, accessories should be specified parts used in

specified way, service must use specified parts too. The main circuit must link up

with fuse or breaker.

2 Source voltage

Specified inverter is linked up with compressor terminals . Applied voltage of this inverter

should be voltage specified in this “compressor specification”. Alternating voltage should

never be applied on terminals (for example：commercial alternating voltage of

1φ100V,200V,3φ200V).This is because that if applied alternating current the direct

current motor will demagnetize.

3 Operating voltage range

The compressor should be operated in the range of rated voltage 　 10% , under standard condition

and overload condition of rated frequency (applied voltage to inverter).

It must be satisfied with item 5, 6, 7 and the overload condition should not be continuous.

But the standard condition and overload condition mentioned here refer to condition that specified

in GB/T 7725. (The standard condition refers to the rating cooling condition and the overload

condition refers to the maximum operating condition.)

4 Operating temperatures and pressures

The operating temperatures and pressures of a compressor should be within the range shown in

the table 1.

DC INVERTER COMPRESSOR CRITERIA

PAGE：6/32

Table 1

Item Operating Envelope

Refrigerant R410A

（see graph 1a）

R134a

（see graph 1b）

Discharge pressure

MPa{kgf/cm2G}

4.2MPa {41.8} MAX

（condensing temperature : 65℃） In the

range mentioned in chart 2(a).

2.63MPa {25.85} MAX

（condensing temperature : 80℃） In the

range mentioned in chart 2(b).

Suction Pressure

MPa{kgf/cm2G}

0.272~1.652 MPa {1.8 ~ 15.5kgf/cm2G}

It can also be 0.101～0.272 MPa{0 ~

1.8kgf/cm2G} when in transition , but

should not be used when it is less than

0.101MPa{0kgf/cm2G}.

0.106~ 0.665MPa{0.08~ 5.78kgf/cm2G}

It can also be 0.101 ~ 0.106MPa {0 ~

0.08kgf/cm2G}when in transition , but

should not be used when it is less than

0.101MPa{0kgf/cm2G}.

Compressor case bottom temp 99℃or below and 6 degrees higher than condensing temperature

Motor winding temp. St andard load condition： overload condition ：

Rated voltage:： 105℃ MAX

R.Voltage±10%:

120℃MAX

Accumulator temp Higher than outlet pipe of evaporator

Notes: Overload condition should not be continuous.

-35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30

Evaporating temperature(℃)

Condensening Temperature（℃）

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80

Graph 1a Graph 1b

P1 P2 P3 P4 P5 P1 P2 P3 P4 P5 P6 P7

Condensing

temperature 65℃25℃25℃35℃65℃80℃25℃10℃10℃52℃70℃80℃

Evaporation

Temperature 25℃25℃-30℃-30℃-5℃25℃25℃10℃-25℃-25℃-15℃5℃

DC INVERTER COMPRESSOR CRITERIA

PAGE：7/32

5 Pressure difference between suction and discharge

In all allowable rotational speed range, the difference of pressure should be more than

0. 39MPa{4kgf/cm2}. But if there is no problem of noise when assembled in air conditioner,

it can also below this value.

6 Discharge pipe temperature

Discharge pipe temperature is measured at a distance 300mm from the surface of compressor

and should be less than 110℃. The tip of the thermocouple is fixed by soldering when

measuring discharge pipe temperature .Furthermore, soldering point is covered with urethane

foam to prevent the effect of wind.

7 Air leakage test pressure

The pressure should be less than 4.32MPa{42kgf/cm2G}.

8 Oil back and oil level

The oil should be returned continuously to the compressor and the structure of the refrigerating

system should not make oil stay in the system. The oil level in compressor should be satisfied

with chart 2.If not keep the oil level, the shortage will occur, and influence the reliability

of the compressor.(please check the oil level in the compressor with the sight glass which supplied

form SHEC.

9 Dust of compressor hermetic terminals

Compressor hermetic terminals should be mounted with specified cover in right way to prevent

dust entering, and should be used in direction which dust is hard to enter in.

10 Lead wire of compressor hermetic terminals

Measuring the temperature of hermetic terminals , lead wire should be resist to the temperature

and be clamped so as not in touch with the surface of compressor and pipe.

DC INVERTER COMPRESSOR CRITERIA

PAGE：8/32

11 Start-stop frequency

The frequency should be less than 6 times per hour. Operating time from start to stop should

be more than 3 minutes. Stopping time should be more than 3minutes. But oil level should be

met to item 8. Suction and discharge pressure should balance completely before

restarting.

12 Rate of rotational speed change

The rate of compressor rotational speed (acceleration) should be less than 133min-1/s, But if

The variable range is below 120min-1, rate can also be less than 600min-1 when rotational

Speed is reduced to avoid temporary over- current. The change of compressor rotational

speed is referred to chart 3.

13 Air and moisture in refrigerating system

The degree of vacuum in refrigerating system should be less than 20Pa (150×10－3mmHg) at

room temperature just before charging refrigerant. The quantity of water should be less than

0.2ml.

14 Impurities in refrigerating system

(1) The weight of residue on the inside surface of the heat exchanger and tube should be less

than 0.08g/m2. But metallic dust should not be permitted in the system. This value means the

weight of foreign residue collected by filer paper after washing inside surface of

the heat exchanger tubes with R-11.

(2) Prevent the impurities from entering into the enclosed unit system used R410A. When the impurities

entered into the enclosed system, it will damage the moving mechanism parts and result

in the capillary depositing.

(3) Eliminate all system contaminants such as trichlorethylene, alkalies, soaps, oil, acids &

washing fluid used at machining heat exchanger and tubes.

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