Mitsubishi Electric CLIMAVENETA NECS-ME Series Technical Bulletin page 21

Condenserless chiller
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2-pole low head pump
Size
0152
0182
0202
0252
0262
0302
0352
0412
0452
0512
0552
0612
0604
0704
0804
0904
1004
1104
1204
1404
1604
(1)
Values refer to rated operating conditions
Pf
Cooling capacity of unit
Q
Flow of water to evaporator
F.L.I.
Power absorbed by pump
F.L.A.
Current absorbed by pump
Dpu
Total pressure drop of hydronic group
Hu
Working head
SA
Maximum starting current
350
300
250
200
150
100
50
0
Pf (1)
Q (1)
Pump
[kW]
[m
/h]
ref.
3
39.5
6.79
A
45.8
7.88
A
53.6
9.22
A
60.5
10.41
A
67.4
11.59
A
80.2
13.79
A
95.8
15.96
B
104.5
17.97
B
117.4
20.19
C
131.4
22.60
C
150.7
25.92
C
169.9
29.22
D
160.8
27.66
D
185.6
31.92
D
207.4
35.67
E
235.4
40.49
E
263.0
45.24
E
300.5
51.96
F
339.2
58.34
F
386.5
66.48
G
431.6
74.24
H
B
A
0
20
40
NECS-ME
F.L.I.
F.L.A.
[kW]
[A]
1.1
2.5
1.1
2.5
1.1
2.5
1.1
2.5
1.1
2.5
1.1
2.5
1.5
3.2
1.5
3.2
2.2
4.8
2.2
4.8
2.2
4.8
2.2
5.0
2.2
5.0
2.2
5.0
3.0
6.0
3.0
6.0
3.0
6.0
4.0
8.1
4.0
8.1
5.5
10.1
7.5
13.7
133.3
Coefficients for calculating pressure drops comprise standard
mains filter:
K P1
* The presence of the dual (second) pump can noticeably re-
duce the useful head due to a different hydraulic circuit. Reduc-
tion approx. 5%.
G
C
F
E
D
60
80
Q [m3/h]
17
1 pump
SA
Dpu
[A]
KP1
[kPa]
13.7
1037
185,3
13.7
664
181,2
13.7
481
175,7
13.7
360
170,5
13.7
360
164,9
13.7
154
153,7
20.6
108
176,22
20.6
108
164,04
37.3
81
204,85
37.3
63
197,86
37.3
43
187,36
36.8
42,4
185,94
36.8
43
192,53
36.8
30,4
173,58
38.3
30,4
184,56
38.3
23,7
177,95
38.3
19,2
170,15
62.3
13,7
203,29
62.3
13,7
190,25
97.2
11,2
220,47
9,9
234,87
Unit with Hydronic group and one pump
H
I
100
120
NECS_ME_0152_1604_201004_GB
Hu
[kPa]
136
138
132
128
111
123
145
126
166
159
149
138
154
130
142
134
122
157
131
152
176
HFC R410A

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