Refrigeratori
Dati tecnici
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ECDIT10-427A
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330~515 kW
Refrigeratori
Dati tecnici
Raffreddamento ad aria Solo raffreddamento Inverter
ECDIT10-427A
EWAD-BZ
330~515 kW
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Specifiche tecniche. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Perdita di carico - evaporatore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Note per l'installazione . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
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Specifiche tecniche
EWAD~BZSS
EWAD~BZSL
4-1 Specifiche tecniche
330
360
400
329
358
395
420
460
490
520
423
459
488
515
Capacità (1)
Raffreddamento
kW
Controllo della
capacità
Tipo
---
Capacità minima
%
Potenza assorbita
dall'unità (1)
Raffreddamento
kW
120,0
136
147
159
168
181
193
EER (1)
---
2,74
2,63
2,69
2,66
2,73
2,70
2,67
ESEER
---
4,59
4,60
4,55
4,59
4,57
4,70
4,60
IPLV
---
5,53
5,62
5,49
5,63
5,49
5,60
5,54
Rivestimento
Dimensioni
Scambiatore di
calore refrigerante/
acqua
13,5
Colore
---
Bianco avorio
Materiale
---
Lamiera d’acciaio zincata e verniciata
Altezza
mm
2355
Larghezza
mm
Lunghezza
mm
4381
5281
6181
kg
4190
4590
4990
Peso in condizioni di funzionamento
kg
4440
4840
5140
Unità
kg
4340
4740
5140
Peso in condizioni di funzionamento
kg
4590
4990
5390
Tipo
---
Unità
Peso EWAD~BZSS Unità
Peso EWAD~BZSL
A controllo infinitesimale
Volume acqua
l
2234
A fascio tubiero con passaggio singolo
271
264
264
256
256
248
248
Portata acqua nominale
Raffreddamento
l/s
15,72
17,10
18,87
20,21
21,93
23,32
24,61
Perdita di carico nominale
dell'acqua
Raffreddamento
kPa
60
61
72
67
78
69
76
Materiale isolante
Cellula chiusa
Scambiatore di
calore refrigerante/
aria
Tipo
---
Ventilatore
Tipo
---
Elicoidale, ad azionamento diretto
Azionamento
---
Azionamento a frequenza variabile
Diametro
mm
Portata d'aria nominale
l/s
32667
40833
Quantità
N.
8
10
Velocità
giri/
min
Modello
A tubi alettati ad alta efficienza con sottoraffreddamento integrato
800
Tipo
---
Carica olio
l
Quantità
N.
12
700
Alimentazione motore W
Compressore
49000
1133
Compressore monovite semiermetico, controllo ad inverter
26
2
Potenza sonora
Raffreddamento
dB(A)
102,8
103,2
103,6
Pressione sonora (2)
Raffreddamento
dB(A)
83,0
83,0
83,5
Livello sonoro
EWAD~BZSL
Potenza sonora
Raffreddamento
dB(A)
96,9
97,3
98,2
Pressione sonora (2)
Raffreddamento
dB(A)
Circuito frigorifero
Tipo di refrigerante
Livello sonoro
EWAD~BZSS
77,0
77,5
---
R-134a
Carica di refrigerante
kg.
N. di circuiti
N.
73
99
105
2
Attacchi tubazioni
Ingresso/uscita acqua evaporatore
mm
168,3
Dispositivi di
sicurezza
Alta pressione di mandata (pressostato)
114
118
121
Alta pressione di mandata (trasduttore pressione)
Bassa pressione di aspirazione (trasduttore pressione)
Sovraccarico compressore (Kriwan)
Alta temperatura di mandata
Bassa pressione olio
Rapporto bassa pressione
Perdita di carico su filtro olio elevata
Verifica fase
Note (1)
La capacità di raffreddamento, la potenza assorbita dall'unità in raffreddamento e i valori EER si riferiscono alle seguenti condizioni: evaporatore 12/7°C; temp.
esterna 35°C, funzionamento a pieno carico.
Note (2)
I valori sono conformi allo standard ISO 3744 e si riferiscono a: evaporatore 12/7°C; temp. esterna 35°C, funzionamento a pieno carico.
• Sistemi idronici • Regrigeratori
10
• Refrigeratori condensati ad aria • R-134a • EWAD-BZ
4
Specifiche tecniche
EWAD~BZSS
EWAD~BZSL
4-2 Specifiche elettriche
Alimentazione
Compressore
420
---
3
Hz
50
V
400
Minimo
%
-10%
Massimo
%
460
490
520
+10%
Massima corrente di spunto
A
232
250
251
278
297
311
316
Corrente di funzionamento nominale
(raffreddamento)
A
194
220
239
258
273
292
312
Massima corrente di funzionamento
A
322
328
358
394
Corrente max. per dimensionamento cavi
A
355
361
394
433
Fattore di potenza di spostamento minimo in
condizioni nominali
---
Corrente di funzionamento nominale
(raffreddamento)
A
0,98
22,4
28
33,6
Fase
N.
3
Tensione
V
400
Tolleranza sulla tensione
Note
400
Fase
Tolleranza sulla tensione
Ventilatori
360
Frequenza
Tensione
Unità
330
Minimo
%
-10%
Massimo
%
+10%
Massima corrente di funzionamento
A
Metodo di avviamento
---
150+150
180+180
VFD
Tolleranza di tensione ammessa ±10% Lo squilibrio di tensione tra le fasi deve essere compreso entro ± 3%.
Massima corrente di spunto: corrente di spunto del compressore più grande + corrente del compressore con carico massimo al 75% + corrente dei ventilatori
per il circuito al 75%.
La corrente nominale in modalità raffreddamento si riferisce all’installazione con 25 kA di corrente di cortocircuito e si riferisce alle seguenti condizioni:
evaporatore 12°C/7°C; temp. esterna 35°C. Corrente compressore + ventilatori.
La massima corrente di funzionamento si riferisce alla corrente massima assorbita dal compressore e dalla corrente massima assorbita dai ventilatori
Corrente max. per dimensionamento cavi: (amperaggio a pieno carico compressore + corrente ventilatori) x 1,1.
11
• Sistemi idronici • Regrigeratori
• Refrigeratori condensati ad aria • R-134a • EWAD-BZ
4
Specifiche tecniche
EWAD~BZXS
EWAD~BZXL/EWAD~BZXR
4-3 Specifiche tecniche
330
360
400
329
358
395
420
460
490
520
423
459
488
515
Capacità (1)
Raffreddamento
kW
Controllo della
capacità
Tipo
---
Capacità minima
%
Potenza assorbita
dall'unità (1)
Raffreddamento
kW
118,0
135
145
157
165
178
190
EER (1)
---
2,79
2,65
2,72
2,69
2,78
2,74
2,71
ESEER
---
4,79
4,82
4,78
4,84
4,81
5,01
4,84
IPLV
---
5,76
5,86
5,73
5,87
5,73
5,84
5,78
Rivestimento
Dimensioni
Colore
---
Bianco avorio
---
Lamiera d’acciaio zincata e verniciata
Altezza
mm
2355
Larghezza
mm
Lunghezza
mm
4381
5281
6181
kg
4190
4590
4990
Peso in condizioni di funzionamento
kg
4440
4840
5240
Unità
kg
4340
4740
5140
Unità
Peso in condizioni di funzionamento
2234
kg
4590
4990
5390
kg
4390
4790
5190
Peso in condizioni di funzionamento
kg
4640
5040
5440
Tipo
---
Peso EWAD~BZXR Unità
Scambiatore di
calore refrigerante/
acqua
13,5
Materiale
Peso EWAD~BZXS Unità
Peso EWAD~BZXL
A controllo infinitesimale
Volume acqua
l
Portata acqua nominale
Raffreddamento
Perdita di carico nom. dell'acqua Raffreddamento
A fascio tubiero con passaggio singolo
271
264
264
256
256
248
248
l/s
15,72
17,10
18,87
20,21
21,93
23,32
24,61
kPa
60
61
72
67
78
69
76
Materiale isolante
Cellula chiusa
Scambiatore di calore
refrigerante/aria
Tipo
---
Ventilatore
Tipo
---
Elicoidale, ad azionamento diretto
Azionamento
---
Azionamento a frequenza variabile
Diametro
mm
Portata d'aria nominale
l/s
32667
40833
Quantità
N,
8
10
Velocità
giri/
min
Modello
A tubi alettati ad alta efficienza con sottoraffreddamento integrato
800
Livello sonoro
EWAD~BZXS
Livello sonoro
EWAD~BZXL
Tipo
---
Carica olio
l
Quantità
N.
Potenza sonora
Raffreddamento
dB(A)
Pressione sonora (2)
Raffreddamento
dB(A)
Potenza sonora
Raffreddamento
dB(A)
Pressione sonora (2)
Raffreddamento
dB(A)
Livello sonoro
EWAD~BZXR
Potenza sonora
Raffreddamento
dB(A)
Pressione sonora (2)
Raffreddamento
dB(A)
Circuito frigorifero
Tipo di refrigerante
12
700
Alimentazione motore W
Compressore
49000
900
1133
Compressore monovite semiermetico, controllo ad inverter
26
2
102,8
103,2
103,6
97,3
98,2
93,3
94,2
83
83,5
96,9
77,0
77,5
92,9
73,0
73,5
---
R-134a
Carica di refrigerante
kg.
N. di circuiti
N.
73
99
105
2
Attacchi tubazioni
Ingresso/uscita acqua evaporatore
mm
168,3
Dispositivi di
sicurezza
Alta pressione di mandata (pressostato)
114
118
121
Alta pressione di mandata (trasduttore pressione)
Bassa pressione di aspirazione (trasduttore pressione)
Sovraccarico compressore (Kriwan)
Alta temperatura di mandata
Bassa pressione olio
Rapporto bassa pressione
Perdita di carico su filtro olio elevata,
Verifica fase
Note (1)
La capacità di raffreddamento, la potenza assorbita dall'unità in raffreddamento e i valori EER si riferiscono alle seguenti condizioni: evaporatore 12/7°C; temp. esterna 35°C, funzionamento a pieno carico.
Note (2)
I valori sono conformi allo standard ISO 3744 e si riferiscono a: evaporatore 12/7°C; temp. esterna 35°C, funzionamento a pieno carico.
• Sistemi idronici • Regrigeratori
12
• Refrigeratori condensati ad aria • R-134a • EWAD-BZ
4
Specifiche tecniche
EWAD~BZXS
EWAD~BZXL/EWAD~BZXR
4-4 Specifiche elettriche
Alimentazione
Compressore
420
---
3
Hz
50
V
400
Minimo
%
-10%
Massimo
%
460
490
520
+10%
Massima corrente di spunto
A
232
244
251
278
297
302
316
Corrente di funzionamento nominale
(raffreddamento)
A
183
209
225
244
256
275
295
Massima corrente di funzionamento
A
311
314
344
377
Corrente max. per dimensionamento cavi
A
342
345
378
414
Fattore di potenza di spostamento minimo in
condizioni nominali
---
Corrente di funzionamento nominale
(raffreddamento)
A
0,98
11,2
14
16,8
Fase
N.
3
Tensione
V
400
Tolleranza sulla tensione
Note
400
Fase
Tolleranza sulla tensione
Ventilatori
360
Frequenza
Tensione
Unità
330
Minimo
%
-10%
Massimo
%
+10%
Massima corrente di funzionamento
A
Metodo di avviamento
---
150+150
180+180
VFD
Tolleranza di tensione ammessa ±10% Lo squilibrio di tensione tra le fasi deve essere compreso entro ± 3%.
Massima corrente di spunto: corrente di spunto del compressore più grande + corrente del compressore con carico massimo al 75% + corrente dei ventilatori
per il circuito al 75%.
La corrente nominale in modalità raffreddamento si riferisce all’installazione con 25 kA di corrente di cortocircuito e si riferisce alle seguenti condizioni:
evaporatore 12°C/7°C; temp. esterna 35°C. Corrente compressore + ventilatori.
La massima corrente di funzionamento si riferisce alla corrente massima assorbita dal compressore e dalla corrente massima assorbita dai ventilatori
Corrente max. per dimensionamento cavi: (amperaggio a pieno carico compressore + corrente ventilatori) x 1,1.
13
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Limiti operativi
Temp. aria in ingresso nel condensatore (°C)
EWAD~BZ
Funzionamento con glicole
(acqua in uscita da evaporatore
inferiore a 4°C)
Temperatura dell'acqua in uscita dall'evaporatore (°C)
OPL_1a-2a-3-4-5-6_Rev.02_1
17
• Sistemi idronici • Regrigeratori
• Refrigeratori condensati ad aria • R-134a • EWAD-BZ
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Limiti operativi
EWAD-BZTabella 1 - Scambiatore di calore refrigerante/acqua - Acqua min. e max. ǻt
Ǽt acqua max. all'evaporatore
°C
8
Ǽt acqua min. all'evaporatore
°C
4
Tabella 2 - Scambiatore di calore refrigerante/acqua - Fattori di incrostazione
Fattori di incrostazione
m2 °C / kW
Capacità di raffreddamento
fattore di correzione
Potenza assorbita
fattore di correzione
EER
fattore di correzione
0,0176
1,000
1,000
1,000
0,0440
0,978
0,986
0,992
0,0880
0,957
0,974
0,983
0,1320
0,938
0,962
0,975
Tabella 3 - Scambiatore di calore refrigerante/aria - Fattori di correzione altitudine
Altezza sul livello del mare (m)
0
300
600
900
1200
1500
Pressione barometrica (mbar)
1013
977
942
908
875
843
1800
812
Fattore di correzione della capacità di raffreddamento
1,000
0,993
0,986
0,979
0,973
0,967
0,960
Fattore di correzione potenza assorbita
1,000
1,005
1,009
1,015
1,021
1,026
1,031
Nota (1): L'altitudine massima di funzionamento è 2000 m al di sopra del livello del mare
Nota (2): Contattare la ditta produttrice qualora l'unità debba essere installata ad altitudini comprese tra 1000 e 2000 m al di sopra del livello del mare
Tabella 4.1 - Percentuale di glicole minima per temperatura acqua bassa
Sensore temperatura acqua in uscita evaporatore (°C)
2
0
-2
-4
-6
-8
Glicole etilenico (%)
10
20
20
20
30
30
Glicole propilenico (%)
10
20
20
30
30
30
Nota: Percentuale di glicole etilenico minima da utilizzare con temperatura acqua in uscita dall'evaporatore inferiore a 4°C per prevenire il congelamento del circuito acqua.
Tabella 4.2 - Percentuale minima di glicole per temperatura aria ambiente bassa
Temperature aria esterna (°C) (2)
Glicole etilenico (%) (1)
Temperature aria esterna (°C) (2)
Glicole propilenico (%) (1)
-3
-8
-15
-23
10%
20%
30%
40%
-3
-7
-12
-20
10%
20%
30%
40%
Nota (1): Percentuale minima di glicole per prevenire il congelamento del circuito acqua alla temperatura aria esterna indicata.
Nota (2): La temperatura aria esterna può superare i limiti di esercizio dell'unità, in quanto ciò potrebbe rendersi necessario a protezione del circuito acqua nella stagione invernale in
condizioni non operative.
Tabella 5 - Fattori di correzione per la temperatura dell'acqua in uscita dall'evaporatore
Sensore temperatura acqua in uscita evaporatore (°C)
2
0
-2
-4
-6
-8
Capacità di raffreddamento
0,842
0,785
0,725
0,670
0,613
0,562
Potenza assorbita dal compressore
0,950
0,940
0,920
0,890
0,870
0,840
Nota: i fattori di correzione devono essere applicati alle condizioni d'esercizio: temperatura acqua in uscita evaporatore 7°C.
Tabella 6 - Fattori di correzione per miscela acqua e glicole
Glicole etilenico (%)
Glicole etilenico
Glicole propilenico
10%
20%
30%
40%
50%
Capacità di raffreddamento
0,991
0,982
0,972
0,961
0,946
Potenza assorbita dal compressore
0,996
0,992
0,986
0,976
0,966
Portata (Ǽt)
1,013
1,04
1,074
1,121
1,178
Perdita di carico nell'evaporatore
1,070
1,129
1,181
1,263
1,308
Capacità di raffreddamento
0,985
0,964
0,932
0,889
0,846
Potenza assorbita dal compressore
0,993
0,983
0,969
0,948
0,929
Portata (Ǽt)
1,017
1,032
1,056
1,092
1,139
Perdita di carico nell'evaporatore
1,120
1,272
1,496
1,792
2,128
OPL_1a-2a-3-4-5-6_Rev.02_2
• Sistemi idronici • Regrigeratori
18
• Refrigeratori condensati ad aria • R-134a • EWAD-BZ
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Quadro comandi
3 Le connessioni di alimentazione sul campo, i morsetti di interblocco di controllo e il sistema di controllo dell'unità
dovranno essere installati in posizione centrale in un quadro elettrico (IP54). I comandi di alimentazione e di avvio
dovranno essere separati dai comandi operativi e di sicurezza all'interno di
sezioni diverse dello stesso quadro.
3 L'avvio sarà di tipo stella/triangolo.
3 I comandi di alimentazione e di avvio dovranno essere dotati di fusibili e contattori per ciascun avvolgimento del motore
del compressore e per i motori dei ventilatori. I comandi operativi e di sicurezza dovranno comprendere comandi per il
risparmio energetico; interruttore di arresto di emergenza; protezione da sovraccarico per il motore del compressore;
interruttore di protezione per alta e bassa pressione (per ciascun circuito frigorifero); termostato antigelo; interruttore di
protezione per ciascun compressore.
3 Tutte le informazioni relative all'unità potranno essere visualizzate su display e con un calendario e orologio interni
integrati, per consentire l'accensione e lo spegnimento dell'unità durante la giornata, per tutto l'anno.
3 La fornitura comprenderà le seguenti caratteristiche e funzioni:
- ripristino della temperatura acqua refrigeratacontrollando la temperatura dell'acqua di ricircolo o tramite segnale remoto 4-20 mA CC o controllando la temperatura ambiente esterna;
- funzione Soft Load per prevenire il funzionamento del sistema a pieno carico durante la fase "pulldown" del fluido
refrigerato;
- protezione mediante password di parametri di controllo critici;
- timer per il controllo dell'intervallo di avviamento e di arresto del compressore, per garantire un tempo di spegnimento
minimo del compressore assicurando la massima protezione del motore;
- funzionalità di comunicazione con un PC o monitoraggio remoto;
- controllo della pressione di mandata tramite accensione e spegnimento intelligente dei ventilatori del condensatore;
- selezione lead-lag (principale/ausiliario) manuale o automatica in base alle ore di funzionamento del circuito;
- Doppio setpoint per le versioni dell'unità con salamoia;
- programmazione tramite orologio interno per impostare una pianificazione annuale degli avvii/arresti, compresi i programmi speciali per i weekend e le vacanze.
Interfaccia di comunicazione di alto livello opzionale
Come requisito minimo, il regolatore dovrà fornire i dati riportati utilizzando le seguenti opzioni:
Opzione A
Opzione B
Opzione C
Opzione D
Scheda seriale RS485
Scheda seriale RS232
Interfaccia LonWorks per trasmettitore-ricevitore FTT10A
Compatibile con BACnet
SPC_1-2-3-4-5_Rev.00_5
47
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Il presente opuscolo è fornito unicamente a scopo informativo e non costituisce un’offerta vincolante per
Daikin Europe N.V. Daikin Europe N.V. ha redatto il presente opuscolo secondo le informazioni in proprio
possesso. Non si fornisce alcuna garanzia espressa o implicita di completezza, precisione, affidabilità o
adeguatezza per scopi specifici relativamente al contenuto, ai prodotti e ai servizi ivi presentati. I dati tecnici
ed elettrici sono soggetti a modifiche senza preavviso. Daikin Europe N.V. declina espressamente ogni
responsabilità per danni diretti o indiretti, nel senso più ampio dei termini, derivanti da o correlati all’uso
e/o all’interpretazione della presente pubblicazione. Daikin Europe N.V. detiene i diritti di riproduzione di
tutti i contenuti.
I prodotti Daikin sono distribuiti da:
Daikin Europe N.V. partecipa al Programma di
certificazione EUROVENT. I prodotti che hanno ottenuto
la certificazione EUROVENT sono riportati nell’Elenco dei
prodotti certificati.
Naamloze Vennootschap - Zandvoordestraat 300, B-8400 Oostende - Belgium - www.daikin.eu - BE 0412 120 336 - RPR Oostende
ECDIT10-427A • CD • 11/10 • Copyright Daikin
La presente pubblicazione sostituisce l’edizione EEDIT09-427
Preparato in Belgio da Lannoo (www.lannooprint.be),
azienda che ha ottenuto la certificazione ambientale EMAS e ISO 14001.
Editore responsabile: Daikin Europe N.V., Zandvoordestraat 300, B-8400 Ostenda
Il particolare ruolo di Daikin come costruttore di impianti
di climatizzazione, compressori e refrigeranti, ha
coinvolto in prima persona l’azienda nelle problematiche
ambientali. Da molti anni Daikin si è posta come obiettivo
prioritario quello di diventare il principale costruttore
di sistemi a basso impatto ambientale. Questa sfida
richiede un approccio ecologico alla progettazione e
allo sviluppo di una vasta gamma di prodotti e sistemi di
gestione energetica, basati su principi di conservazione
dell’energia e di riduzione degli sprechi.