Operation Limits; Residual Head - Riello NexPolar Series Installation And Technical Service Instructions

1.9

Operation Limits

CoolING
A (°C)
55
45
35
25
15
5
-5
-15
5
a External air temperature
B Water delivery temperature

1.10 Residual head

The NexPolar unit is equipped with a circulation pump.
A (kPa)
200
190
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
0
10 15
B (°C)
1,8 3,6
HEaTING
A (°C)
70
60
50
40
30
20
10
-30 -20
20
a Water delivery temperature
B External air temperature
C Model 017
D Model 021
For the system's proper sizing, the residual head must be taken
into account, as shown in the following graph.
C
D
5,4
B (m³/h)
9
GENERAL INFORMATION
-10 0 10 20
a Residual static head
B Water flow rate
C Model 017
D Model 021
7,2
C
D
30 40
B (°C)