Buderus Logamax plus GB162 Technical Manual page 63

Logamax plus GB162-50/65/80/100
Δp [mbar ]
400
350
300
250
200
150
100
50
0
0 500 1000 1500 2000 2500 3000 3500 4000
Fig. 61 Residual head GB162-50/65/80/100 with
external pump Wilo Stratos 25/1-8
a Resulting pump pressure 6 m
b Resulting pump pressure 5 m
c Resulting pump pressure 4 m
Δp
Residual head
V
Flow rate
Heat exchanger pressure drop
Logamax plus GB162-45
Δp [mbar ]
800
700
600
500
400
300
200
100
0
0 500 1000
Fig. 62 Pressure drop curve GB162-45 of the heat
exchanger
Δp
Pressure drop
V Flow rate
6 720 645 821 (2010/09) – Logamax plus GB162
a
b
c
V [l/h]
6 720 642 463-43.1il
1500 2000 2500 3000
V [m
3
/h]
6 720 642 463-44.1il
Logamax plus GB162-50/65/80/100
Δp [mbar ]
500
400
300
200
65 kW, ΔT = 20 K (2800 l/h)
50 kW, ΔT = 20 K (2150 l/h)
100
0
0 1000 2000
Fig. 63 Pressure drop curve GB162-50/65/80/100 of
the heat exchanger
Δp
Pressure drop
V
Flow rate
System examples
80 kW, ΔT = 20 K
100 kW, ΔT = 23 K
3000 4000 5000
V [m
3
/h]
6 720 642 463-46.1il
6
63