Buderus Logamax plus GB162 Technical Manual page 62

6 System examples
Logamax plus GB162-50
Δp [mbar ]
700
600
500
400
300
200
100
0
200 400 600 800
0
Fig. 57 Residual head GB162-50 with external pump
UPM 25-70
a Full load
b Partial load
Δp
Residual head
V Flow rate
Logamax plus GB162-50/65
Δp [mbar ]
250
200
150
100
50
0
0 500 1000 1500 2000 2500 3000 3500 4000
Fig. 58 Residual head GB162-50/65 with external
pump Magna 25-60
a Resulting pump pressure 4 m
b Resulting pump pressure 3 m
Δp
Residual head
V Flow rate
62
a
b
1000 1200 1400 1600 1800 2000
V [l/h]
6 720 642 463-45.1il
a
b
V [m
3
/h]
6 720 642 463-49.1il
Logamax plus GB162-50/65/80/100
Δp [mbar ]
350
300
250
200
150
100
50
0
0 500 1000 1500 2000 2500 3000 3500 4000
Fig. 59 Residual head GB162-50/65/80/100 with
external pump Magna 25-100
a Resulting pump pressure 6 m
b Resulting pump pressure 5 m
c Resulting pump pressure 4 m
Δp
Residual head
V
Flow rate
Logamax plus GB162-50/65/80/100
Δp [mbar ]
900
800
700
600
500
1
400
300
200
a
100
0
0 1000 2000
Fig. 60 Residual head GB162-50/65/80/100
downstream of the connection set with check
valve
a Low load
b Full load
Δp
Residual head
V Flow rate
1 GB162-65 with pump assembly incl. 3-way diverter valve
6 720 645 821 (2010/09) – Logamax plus GB162
a
b
c
V [m
3
/h]
6 720 642 463-48.1il
50 kW, ΔT = 12 K
65 kW, ΔT = 16 K
80 kW, ΔT = 20 K
b
100 kW, ΔT = 23 K
3000 4000 5000
V [m
3
/h]
6 720 642 463-47.1il