Hitachi Highly WHP07850VUK User manual
HitachiHighly
Rollkolbenverdichter
Rotary Compressors
Spezifikation
Installation Manual
WHP07850VUKQA8JT6T
RIES GmbH, Rudolf-Diesel-Str. 10, D 64569 Nauheim, GERMANY
R 410A - R 452B - R 454C - R 454B
18,6 cm3/rev
900 - 7200 min-1
Contents
I WHP07850VUKQA8JT6T —————1～4
1. Application range
2. Compressor specifications
3. Motor parameters
4. Parts and drawings list
5. General characteristics
II Heat pump water heater dedicated compressor reference
— ——5～15
III Acceptance ———————16
1. Acceptance basis
2. Acceptance rules
———————17～30
IV Drawings
V Modifications ———————Appendix
SUBJECT
Model WHP07850VUKQA8JT6T SPECIFICATION PAGE:1/30
1. SCOPE
This specification is applied to SHANGHAI HIGHLY Heat pump water heater compressor.
2. SPECIFICATION OF COMPRESSOR
2.1 Model WHP07850VUKQA8JT6T
2.2Power source input to HIGHLY inverter
Rated Voltage/Frequency/Phase 220V/50Hz/single
2.3 Application Heat pump water heater
2.4 Refrigerant
2.5 Compressor Cooling
R410A/R452B/R454C/R454B
Forced air
2.6 Displacement 18.6ml/rev（Double-cylinder ）
2.7 Performance
Refrigerant R410A R452B R454C R454B
Item Rated Condition Rated Condition Rated Condition Rated Condition
Rotational speed 3600 min-1 3600 min-1 3600 min-1 3600 min-1
Nominal Heating Capacity 7820W 7594W 5365W 7530W
Motor input 1805W 1734W 1149W 1715W
Current 5.50A 5.34A 4.00A 5.29A
COP(see*) 4.33 4.38 4.67 4.39
Test Conditions
Evaporating temp. 7.2℃ 7.2℃ 7.2℃
Condensing temp. 54.4℃ 54.4℃ 54.4℃
Liquid temp. entering
expansion valve. 46.1℃ 46.1℃ 46.1℃
Return gas temp. 35℃ 35℃ 35℃
Ambient temp. 35℃ 35℃ 35℃
Wind speed 2m/s 2m/s 2m/s
SUBJECT
Model WHP07850VUKQA8JT6T SPECIFICATION PAGE:2/30
*COP=
Heating capacity (W)
Motor input (W)
2.8 Allowable frequency range 900~7200rpm
2.9 Allowable amount of refrigerant
charge 1650g
2.10 Amount of oil charge
2.11 Oil
500±20 ml(Initial)
HAF68D1/HAF68D1U/ALPHA68HES or equivalent
2.12 Space volume of inner case 1200 ml
2.13 Net weight 10.0kg incl.oil
2.14 Hermetic Terminal 1/4”quick connect
type
2.15 Motor
Type
Insulation class
Winding resistance
Direct current brushless motor
Class E
1.354Ω(at 20℃)
* Nominal heating capacity equals refrigerant capacity adding motor input. Refrigerant capacity and motor input are measured
by secondary Refrigerant calorimeter Methods of GB5773by Shanghai Highly Electrical Appliances Co.,Ltd. Allowable heating
capacity should be more than 95% of the nominal heating capacity and allowable motor input should be less than107% of nominal
motor input.
SUBJECT
Model WHP07850VUKQA8JT6T SPECIFICATION PAGE:3/30
3. MOTOR PARAMERER
project parameter description
3.1 Rotor Pole(Pole) 66 electrodes 9 slots
concentrated winding
3.2 Rated Frequency Range（Hz）15-120
Mechanical Frequency ， Relating to
VDCmax of Inverter
3.3 Demagnetizing Curren（A）29.0
Peak Current，at130℃，-5%
Demagnetizing Rate
3.4 Inductance Ld（mH）Sheet 1 ——
3.5 Inductance Lq（mH）Sheet 1 ——
project parameter description
3.6 Winding Resistance（Ω）（20℃）1.354（20℃）Phase-to-Phase
3.7 Voltage Constant（Vrms/krpm）52.34 Phase-to-Phase
3.8 Torque Constant（N·m/Arms）0.65 Torque/Current
3.9 Inertia （Kg·m2）0.000388 --
3.10 Flux Φa（Wb）0.1351
φ(Per Phase，Peak)=
3.11 Magnet Material NdFeB
1：100Hz.
（RMS） 1.0 2.0 3.0 4.0 5.0 6.0 7.0
Lq(mH) 12.09 11.84 11.47 11.09 10.67 10.27 9.86
Ld(mH) 8.87 8.78 8.61 8.40 8.15 7.91 7.68
SUBJECT
Model WHP07850VUKQA8JT6T SPECIFICATION PAGE:4/30
4. PARTS AND DRAWING LIST
PARTS NAME QTY/SET DRAWING NO. REMARKS
Compressor 1 4CYCD**** Dimensioned sketch
Mounting
Parts Rubber grommet
Bolt
Nut
3
-
-
4CYC00851
4CYC00940
（M8）
*
*
Electrical
Parts
Terminalcover
Gasket
Sleeve
Nut
Rubber washer
Thermostat
1
1
1
1
1
1
4CYC01114
4CYC01113
4CYC01042
3CYC00004
4CYC00174
4CYC01045
4CYC01268
1
2
3
Lead routing
Pressure guarantee
Chart
Oil level datum
Notes for rotational
speed change
Performance curse
Appendix
*. Out of supply，for reference.
5. CHARACTERISTICS 5.1
Residual moisture 200mg MAX
5.2Residual impurities 100mg MAX
HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:5/30
COMPRESSOR CRITERIA
1 Strictly observe the specification
The compressor should be used in specifications written in this “compressor specification” and
not be usedin 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 upwithcompressor 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 1 100V,200V,3200V).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 rangeof 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.
4 Operating temperatures and pressures
The operating temperatures and pressures of a compressor should be within the range shown in
the table 1.
HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:6/30
Table 2
Item Operating Envelope （see graph 1）
Refrigerant R410A R452B R454C R454B
Discharge pressure
MPa{kgf/cm2G} 4.279 MAX
（condensing
temperature:
65℃）
4.039 MAX
（condensing
temperature
65℃）
3.124 MAX
（condensing
temperature:
70℃）
3.991 MAX
（condensing
temperature:
65℃）
Suction Pressure
MPa{kgf/cm2G}
0.272~1.652 0.254~1.562 0.172~1.084 0.251~1.543
(Evaporation Temperature ：-30℃~25℃)It can also be 0.101～0.172
MPa when in transition , but should not be used when it is less
than 0.101MPa
Compressor case bottom temp 99℃or below and 6 degrees higher than condensing temperature
Motor winding temp. Rated voltage: ：105℃MAX
Ra t e dVoltage±10%:
120℃MAX
Accumulator temp Higher than outlet pipe of evaporator
Notes: Overload condition should not be continuous.
Graph 1(a)
P1 P2 P3 P4 P5
Condensing temperature 65℃28℃5℃45℃65℃
Evaporation Temperature 25℃25℃-30℃-30℃-5℃
HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:7/30
Graph 1(b)
P1 P2 P3 P4 P5
Condensing temperature 70℃28℃5℃65℃70℃
Evaporation Temperature 25℃25℃-30℃-30℃-10℃
5Current limitation
Current peak among motor terminals（include instantaneous current peak）should be
below 29.0A(at130 ) in order to prevent magnet in motor from demagnetization.℃
6 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.
7 Discharge pipe temperature
Discharge pipetemperature is measured at a distance300mm from the surface of compressor
and should be less than 110℃. The tip ofthe thermocouple is fixed bysoldering when
measuring discharge pipe temperature .Furthermore, soldering point is covered with urethane
foam to prevent the effect ofwind.
8Air leakage test pressure
The pressure should be less than 2.847MPa{28kgf/cm2G}.
HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:8/30
9Oil 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 higher than 7.5 mm from the lu
b
ricating piece fixed
on the end of the crankshaft.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.
10 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.
11 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.
12 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.
3
13 Rate ofrotational 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 /s when rotational
Speed is reduced to avoid temporary over- current. The change of compressor rotational speed is referred to chart 3.
14 Air and moisture in refrigerating system
The degree of vacuum in refrigerating system should be less than 133Pa (998×10－3mmHg) at
room temperature just before charging refrigerant. The quantity of water should be less than 0.15ml.
This manual suits for next models
1
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