
ALUTHERM
|
Boilers 27
ALUTERM B 350 - 600
|
Installation, User and Service Manual
|
instructions for user
Heating
Alutherm B 350 - 600
6.3.1 Pump
The boiler does not have a built in CH-pump. Therefore a CH-pump must be mounted separately . Select a pump that matches the hydraulic
resistance of the boiler and the installation.
The graph below shows the resistance characteristics for the different boiler models
For electrical connections see chapter 6.7.
6.3.2
Minimum flow
The minimum flows shown below must be guaranteed.
Minimum flow
Type
Flow [m3/h] @ delta T 25 full load
Flow [m3/h] @ delta T 30 Start=20%
Flow [m3/h] @ delta T 30 part load
B 350
11,7
3,5
1,9
B 425
14,6
3,4
2,4
B 510
17,5
4,3
2,9
B 600
20,5
6,1
3,4
We recommend to keep the minimum flow at least above 50% of the nominal flow in all cases. When the actual flow is lower than nominal adjust
the hysteresis to prevent hunting.
15
56
100
190
5-L
15
50
115
200
6-L
15
50
120
217
7-L
10
50
120
220
8-L
0
50
100
150
200
250
300
350
0
5
10
15
20
25
30
----------
>
Pres
su
re
drop
in
m
ba
r
----------> Flow in cubic mtrs/h
Hydraulical pressure drop Intermodul series
5-L 340 kW nominal flow 14,7 m3/h
6-L 415 kW nominal flow 18,2 m3/h
7-L 510 kW nominal flow 21,9 m3/h
8-L 595 kW nominal flow 25,8 m3/h
Hydraulic pressure drop Alutherm series