HEAT EXCHANGER OUTPUT CHARTS
HEAT EXCHANGER OUTPUT REFERRED TO TEMPERATURE AND FLOW RATE OF PRIMARY CIRCUIT AND WITH SECONDARY AT 10/45°C AT MAXIMUM WITHDRAWAL OF PRODUCIBLE DHW
(UPPER LIMIT OF THE CURVES REFERRED TO MAXIMUM PRIMARY FLOW RATE IN THE HEAT EXCHANGER, WHILE THE LOWER LIMIT IN THE CURVE REFERS TO THE MINIMUM PRIMARY FLOW RATE)
30
Output [KW]
25
1 m2
BOLLY® 2 ST
CALORIFIERS RANGE
20
0,75 m 2
15
0,5 m 2
10
0,4 m 2
5
0
55
60
65
70
75
80
Primary circuit temperature [°C]
Upper fixed heat
exchanger surface
Primary flow rate
[m3/h]
0,4 m2
Lower fixed heat
exchanger surface
0,5 m2
MAX
MIN
MAX
MIN
2
1
2,5
1,25
Primary flow rate
[m3/h]
0,75 m2
1 m2
MAX
MIN
MAX
MIN
3
1,5
3,5
1,75
70
60
BOLLY® 2 ST
CALORIFIERS RANGE
50
Output [KW]
1,9 m 2
40
1,8 m 2
30
1,6 m 2
20
10
55
60
65
70
75
Primary circuit temperature [°C]
Upper fixed heat
exchanger surface
Primary flow rate
[m3/h]
1,6 m2
Lower fixed heat
exchanger surface
1,8 m2
MAX
MIN
MAX
MIN
6
3
6
3
238
Primary flow rate
[m3/h]
2,3 m2
MAX
MIN
6
3
80