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EWLD950EJYNN
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Daikin EWLD950EJYNN [33/88] Pressure drops evaporator

D – KIMWC00412-09EN -33/88

Pressure drops

Evaporator

EWWD340~C18EJYNN

EWLD320~C17EJYNN (+ OPLR)

A EWWD340EJYNN EWLD320EJYNN M EWWDC10EJYNN EWLD950EJYNN

B EWWD400EJYNN EWLD400EJYNN N

EWLDC10EJYNN

C EWWD460EJYNN EWLD420EJYNN O

EWWDC12EJYNN

EWLDC11EJYNN

D EWWD550EJYNN EWLD500EJYNN P

EWWDC13EJYNN

EWLDC12EJYNN

E EWWD650EJYNN EWLD600EJYNN Q

EWWDC14EJYNN

EWLDC13EJYNN

F EWWD700EJYNN EWLD650EJYNN R

EWWDC15EJYNN

EWLDC14EJYNN

G EWWD800EJYNN EWLD750EJYNN S

EWWDC16EJYNN

EWLDC15EJYNN

H EWWD850EJYNN EWLD800EJYNN T

EWWDC17EJYNN

EWLDC16EJYNN

I EWWD900EJYNN EWLD850EJYNN U

EWWDC18EJYNN

EWLDC17EJYNN

L EWWD950EJYNN EWLD900EJYNN

Water flow (l/s)

Pressure drop (kPa)

Содержание

Water cooled screw chillers 1
Contents 2
List of figures 3
List of tables 3
Important 4
Warning 4
Assistance 6
Caution 6
General information 6
Important 6
Receiving the machine 6
Spare parts 6
Warnings for the operator 6
Checks 7
Important information on the refrigerant used 7
Purpose of this manual 7
D kimwc00412 09en 8 88 8
Nomenclature eww d 360 ej yn n a 8
Technical data ewwd ejynn 9
Technical specifications 9
Technical data ewwd ejynn a 14
Technical data ewld ejynn oplr 17
Ewwd ejynn ewwd ejynn a ewld ejynn 22
Sound pressure levels 22
Ewwd ejynn ewwd ejynn a ewld ejynn with sound proof cabinet 23
Ewwd ejynn 24
Ewwd ejynn a 24
Sound pressure correction factors for different distances 24
Attention 25
Operating limits 25
Operation 25
Storage 25
Envelope 26
Ewwd ejynn ewwd ejynn a 26
Elwd ejynn 27
Envelope 27
Handling and lifting 28
Mechanical installation 28
Responsibility 28
Safety 28
Shipping 28
Warning 28
Positioning and assembly 29
Warning 29
Minimum space requirements 30
Sound protection 30
Ventilation 30
Water piping 30
Attention 31
Water treatment 31
Evaporator and exchangers anti freeze protection 32
Installing the flow switch 32
Refrigerating circuit safety valves 32
Table 1 acceptable water quality limits 32
Warning 32
D kimwc00412 09en 33 88 33
Ewwd340 c18ejynn ewld320 c17ejynn oplr 33
Pressure drop kpa 33
Pressure drops evaporator 33
Water flow l s 33
Condenser 1 pass 4 8 c ewwd340 c18ejynn 34
Condenser 2 passes 9 15 c ewwd340 c18ejynn 35
Evaporator ewwd360 c12ejynn a 36
Water flow l s 36
Condenser 2passes 4 8 c ewwd360 c12ejynn a 37
Water flow l s 37
Pressure drops condenser 1 pass 4 8 c ewwd340 c18ejynn 38
Total heat recovery option on request 38
Condenser 2passes 9 15 c ewwd340 c18ejynn 39
Partial heat recovery option on request 40
Pressure drops ewwd340 c18ejynn 40
Caution 41
Electrical installation 41
General specifications 41
Electrical data 42
D kimwc00412 09en 43 88 43
Alarm relays electrical wiring 44
Double setpoint electrical wiring 44
Electrical components 44
Electrical wiring 44
External water setpoint reset electrical wiring optional 44
Oil heaters 44
Unit on off remote control electrical wiring 44
Water pump control 44
Additional expansion for heat recovery 45
Common analog signal 4 20ma 45
Current limit enable 45
D kimwc00412 09en 45 88 45
Double set point 45
Evaporator flow switch 45
External alarm 45
General alarm 45
Heat reccovey device switch 45
Load current limit 4 20 ma 45
Load limitation the load can be varied by means of a 4 20 ma external signal from a bms the signal cable must be directly connected to terminals 36 and 37 of the m3 terminal board the signal cable must be of the shielded type and must not be laid in the vicinity of the power cables so as not to induce interference with the electronic controller current limitation the machine s load can be varied by means of a 4 20 ma external signal from an external device in this case current control limits must be set on the microprocessor so that the microprocessor transmits the value of the measured current and limits it the signal cable must be directly connected to terminals 36 and 37 of the m3 terminal board the signal cable must be of the shielded type and must not be laid in the vicinity of the power cables so as not to induce interference with the electronic controller a digital input allows to enable the current limitation at the desired time connect the enabling switch or the timer clean co 45
Pump 1 alarm 45
Pump 1 enable 45
Pump 2 alarm 45
Pump 2 enable 45
Remote on off 45
Setpoint override 4 20 ma 45
Unit basic connections additional expansion for pump control additional expansion for external water setpoint reset and unit limitation 45
Unit current 4 20 ma 45
Unit limitation electrical wiring optional 45
Guidelines for remote condenser application 46
Refrigerant piping design 46
Determining equivalent line length 47
1 1 8 1 1 8 1 3 8 1 3 8 1 3 8 1 3 8 1 3 8 1 5 8 1 5 8 48
1 1 8 1 3 8 1 3 8 1 3 8 1 3 8 1 3 8 1 5 8 1 5 8 1 5 8 48
1 1 8 1 3 8 1 3 8 1 3 8 1 3 8 1 5 8 1 5 8 1 5 8 1 5 8 48
1 1 8 1 3 8 1 3 8 1 3 8 1 5 8 1 5 8 1 5 8 2 1 8 2 1 8 48
Discharge hot gas line sizing 48
Kw 5 10 15 20 25 30 40 50 60 48
Liquid line sizing 48
Table 2 equivalent lengths in meters 48
Table 3 liquid line sizes 48
Oil charge 49
Table 4 discharge line sizes 49
Description of the machine 50
Description of the refrigeration cycle 50
Description of the refrigeration cycle with partial heat recovery 50
Operation 50
Operator s responsibilities 50
Controlling the partial recovery circuit and installation recommendations 51
C h e c k v a l v e 52
C o m p r e s s o r 52
C o n d e n s e r 52
E v a p o r a t o r 52
E x p a n s io n v a l v e 52
F l a r e v a l v e 52
Fig 10 refrigeration cycle of the ewwd ejynn single circuit 52
L e g e n d 52
O il s e p a r a t o r 52
S a f e t y v a l v e 52
S h u t o f f v a l v e 52
S ig h t g l a s s 52
S o l e n o id v a l v e 52
W a y a n g l e v a l v e w it h g a s c h a r g e p o r t 52
C h e c k v a l v e 53
C o m p r e s s o r 53
C o n d e n s e r 53
E v a p o r a t o r 53
E x p a n s io n v a l v e 53
F l a r e v a l v e 53
Fig 11 refrigeration cycle of the ewld ejynn single circuit 53
L e g e n d 53
O il s e p a r a t o r 53
S a f e t y v a l v e 53
S h u t o f f v a l v e 53
S ig h t g l a s s 53
S o l e n o id v a l v e 53
W a y a n g l e v a l v e w it h g a s c h a r g e p o r t 53
C h e c k v a l v e 54
C o m p r e s s o r 54
C o n d e n s e r 54
D kimwc00412 09en 54 88 54
E v a p o r a t o r 54
E x p a n s io n v a l v e 54
F l a r e v a l v e 54
Fig 12 refrigeration cycle of the ewld ejynn oplr single circuit 54
L e g e n d 54
O il s e p a r a t o r 54
S a f e t y v a l v e 54
S h u t o f f v a l v e 54
S ig h t g l a s s 54
S o l e n o id v a l v e 54
W a y a n g l e v a l v e w it h g a s c h a r g e p o r t 54
Check valve 55
Compressor 55
Condenser 55
D kimwc00412 09en 55 88 55
Evaporator 55
Expansion valve 55
Fig 13 refrigeration cycle of the ewwd single circuit total heat recovery 55
Flare valve 55
Legend 55
Oil separator 55
Safety valve 55
Shut off valve 55
Sight glass 55
Solenoid valve 55
Way angle valve with gas charge port 55
C h e c k v a l v e 56
C o m p r e s s o r 56
C o n d e n s e r 56
D kimwc00412 09en 56 88 56
E v a p o r a t o r 56
E x p a n s io n v a l v e 56
F l a r e v a l v e 56
Fig 14 refrigeration cycle of the ewwd ejynn a single circuit fig 14 refrigeration cycle of the ewwd ejynn a single circuit 56
L e g e n d 56
O il s e p a r a t o r 56
S a f e t y v a l v e 56
S h u t o f f v a l v e 56
S ig h t g l a s s 56
S o l e n o id v a l v e 56
W a y a n g l e v a l v e w it h g a s c h a r g e p o r t 56
Check valve 57
Compressor 57
Condenser 57
D kimwc00412 09en 57 88 57
Evaporator 57
Expansion valve 57
Fig 5 refrigeration cycle of the ewwd ejynn double circuits 57
Flare valve 57
Legend 57
Oil separator 57
Safety valve 57
Shut off valve 57
Sight glass 57
Solenoid valve 57
Way angle valve with gas charge port 57
C h e c k v a l v e 58
C o m p r e s s o r 58
C o n d e n s e r 58
D kimwc00412 09en 58 88 58
E v a p o r a t o r 58
E x p a n s io n v a l v e 58
F l a r e v a l v e 58
Fig 16 refrigeration cycle of the ewld ejynn double circuits 58
L e g e n d 58
O il s e p a r a t o r 58
S a f e t y v a l v e 58
S h u t o f f v a l v e 58
S ig h t g l a s s 58
S o l e n o id v a l v e 58
W a y a n g l e v a l v e w it h g a s c h a r g e p o r t 58
C h e c k v a lv e 59
C o m p r e s s o r 59
C o n d e n s e r 59
D kimwc00412 09en 59 88 59
E v a p o r a t o r 59
E x p a n s io n v a lv e 59
F la r e v a lv e 59
Fig 17 refrigeration cycle of the ewld ejynn oplr double circuits 59
Le g e n d 59
O il s e p a r a t o r 59
S a f e t y v a lv e 59
S h u t o f f v a lv e 59
S ig h t g la s s 59
S o le n o id v a lv e 59
W a y a n g le v a lv e w ith g a s c h a r g e p o r t 59
Check valve 60
Compressor 60
Condenser 60
D kimwc00412 09en 60 88 60
Evaporator 60
Expansion valve 60
Fig 18 refrigeration cycle of the ewwd double circuits total heat recovery fig 18 refrigeration cycle of the ewwd double circuits total heat recovery 60
Flare valve 60
Legend 60
Oil separator 60
Safety valve 60
Shut off valve 60
Sight glass 60
Solenoid valve 60
Way angle valve with gas charge port 60
Check valve 61
Compressor 61
Condenser 61
D kimwc00412 09en 61 88 61
Evaporator 61
Expansion valve 61
Fig 19 refrigeration cycle of the ewwd ejynn a double circuits 61
Flare valve 61
Legend 61
Oil separator 61
Safety valve 61
Shut off valve 61
Sight glass 61
Solenoid valve 61
Way angle valve with gas charge port 61
Check valve 62
Compressor 62
Condenser 62
D kimwc00412 09en 62 88 62
Evaporator 62
Expansion valve 62
Fig 0 refrigeration cycle of the ewwd ejynn trial circuits 62
Flare valve 62
Legend 62
Oil separator 62
Safety valve 62
Shut off valve 62
Sight glass 62
Solenoid valve 62
Way angle valve with gas charge port 62
Check valve 63
Compressor 63
Condenser 63
D kimwc00412 09en 63 88 63
Evaporator 63
Expansion valve 63
Fig 21 refrigeration cycle of the ewld ejynn trial circuits 63
Flare valve 63
Legend 63
Oil separator 63
Safety valve 63
Shut off valve 63
Sight glass 63
Solenoid valve 63
W ay angle valve w ith gas charge port 63
Check valve 64
Compressor 64
Condenser 64
D kimwc00412 09en 64 88 64
Evaporator 64
Expansion valve 64
Fig 22 refrigeration cycle of the ewld ejynn oplr trial circuits 64
Flare valve 64
Legend 64
Oil separator 64
Safety valve 64
Shut off valve 64
Sight glass 64
Solenoid valve 64
Way angle valve with gas charge port 64
Check valve 65
Compressor 65
Condenser 65
D kimwc00412 09en 65 88 65
Evaporator 65
Expansion valve 65
Fig 23 refrigeration cycle of the ewwd trial circuits total heat recovery fig 23 refrigeration cycle of the ewwd trial circuits total heat recovery 65
Flare valve 65
Legend 65
Oil separator 65
Safety valve 65
Shut off valve 65
Sight glass 65
Solenoid valve 65
Way angle valve with gas charge port 65
Compression process 66
Compressor 66
Compression 67
D kimwc00412 09en 67 88 67
Discharge 67
E 2 suction 67
Fig 25 compression process 67
Attention 69
Caution 69
General 69
Important 69
Pre startup checks 69
Warning 69
29 1 100 387 387 392 x 70
Attention 70
Caution 70
Electrical power supply 70
Emergency stop 70
Oil heaters power supply 70
Unbalance in power supply voltage 70
Units with external water pump 70
_____ 100 max x vaverage vaverage v 70
Important 71
Startup procedure 71
Table 5 typical operating conditions with compressors at 100 71
Turning on the machine 71
Important 72
Seasonal shutdown 72
Starting up after seasonal shutdown 72
Attention 73
Compressor maintenance 73
General 73
Important 73
Lubrication 73
System maintenance 73
Warning 73
7 safety valves check that the lid and seal have not been tampered with check that the discharge socket of the safety valves is not obstructed by any objects rust or ice check the manufacturing date shown on the safety valve replace the valve every 5 years and make sure it is compliant with the current regulations in terms of the installation of the unit 8 clean the pipes of the exchanger mechanically and chemically if the following occur drop in the condenser water capacity drop in the differential temperature between inlet and outlet water high temperature condensation 75
Analyse compressor oil acidity note 6 75
Analyse compressor vibrations 75
Analysis of water note 5 75
Attention 75
Change oil replace oil filter and filter dryer verify at regular intervals 75
Check for any refrigerant leakage 75
Check safety valves note 7 75
Clean and paint where necessary 75
Clean inside the electrical control board 75
Clean the exchangers note 8 75
D kimwc00412 09en 75 88 75
Ensure proper water flow through the evaporator during the entire servicing period interrupting the water flow during this procedure would cause the evaporator to freeze with consequent breakage of internal piping 75
It is strongly advised that the filter dryer cartridges be replaced in the event of a considerable pressure drop across the filter or if bubbles are observed through the liquid sight glass while the subcooling value is within the accepted limits replacement of the cartridges is advised when the pressure drop across the filter reaches 50 kpa with the compressor under full load the cartridges must also be replaced when the humidity indicator in the liquid sight glass changes colour and shows excessive humidity or when the periodic oil test reveals the presence of acidity tan is too high 75
Measure compressor motor insulation using the megger 75
No action between 0 0 and 0 9 replace anti acid filters and re check after 1000 running hours continue to replace filters until the tan is lower than 0 0 75
Note 2 75
Notes 1 monthly activities include alle the weekly ones 2 the annual or early season activities include all weekly and monthly activities 3 machine operating values should be read on a daily basis thus keeping high observation standards 4 replace the oil filter when the pressure drop across it reaches 2 bar 5 check for any dissolved metals 6 tan total acid number 75
Procedure to replace the filter dryer cartridge 75
Reading of operating data note 3 75
Replacement of filter dryer 75
Routine maintenance 75
Verification of control sequence 75
Verification of thermal insulation integrity 75
Verify contactor wear replace if necessary 75
Verify filter dryer pressure drop 75
Verify oil filter pressure drop note 4 75
Verify operation of compressor and electrical resistance 75
Verify refrigerant flow using the liquid sight glass sight glass full 75
Verify that all electrical terminals are tight tighten if necessary 75
Visual inspection of components for any signs of overheating 75
Visual inspection of machine for any damage and or loosening 75
Attention 76
Replacement of the oil filter 76
Warning 76
Attention 77
Fr4200 compressor 77
Oil filter replacement procedure procedure to replace oil filter 77
Attention 78
Refrigerant charge 78
Refrigerant filling procedure 78
Warning 78
Standard checks 79
Temperature and pressure sensors 79
Refrigerant side measurements 80
Test sheet 80
Water side measurements 80
Compressor 1 _____ a _____ a _____ a compressor 2 _____ a _____ a _____ a compressor 3 _____ a _____ a _____ a 81
Compressors current phases 81
D kimwc00412 09en 81 88 81
Electrical measurements 81
_____ 100 max x vaverage vaverage v 81
Service and limited warranty 82
Obligatory routine checks and starting up apparatuses under pressure 83
Disposal 84
Important information regarding the refrigerant used 84
Daikin europe n v 88
Ewwd 340 c18 ejynn ewwd 360 c12 ejynn a ewld 320 c17 ejynn 88
Water cooled screw chillers 88

Daikin EWLD950EJYNN [33/88] Pressure drops evaporator

Содержание

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