Pump Duty - Benchmark Procombi A Series Installation & Servicing Instructions Manual

2.12

PUMP DUTY

Fig. 3 shows the flow-rate available – after allowing
for pressure loss through the appliance – for
system requirements. When using this graph,
apply only the pressure loss of the system. The
graph is based on a 20
5,0
4,8
4,6
4,4
4,2
4,0
3,8
3,6
3,4
3,2
3,0
2,8
2,6
2,4
2,2
2,0
1,8
1,6
1,4
1,2
1,0
0,8
0,6
0,4
0,2
0,0
Fig. 3
Fig. 4
Key Location
A Below an opening (window, air-brick, etc.)
B Above an opening (window, air-brick, etc.)
C To the side of an opening (window, air-brick, etc.)
D Below gutter, drain-pipe, etc.
E Below eaves
F Below balcony, car-port roof, etc.
G To the side of a soil/drain-pipe, etc.
H From internal/external corner or boundary
I Above ground, roof, or balcony level
J From a surface or boundary facing the terminal
K From a terminal facing a terminal
L From an opening in the car-port into the building
M Vertically from a terminal on the same wall
N Horizontally from a terminal on the same wall
P From a structure to the side of the vertical terminal
Q From the top of the vertical terminal to the roof flashing
o
C temperature differential.
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300
Flow rate (l/h)
1400 1500
Minimum distance
300 mm
300 mm
300 mm
25 mm
25 mm
25 mm
25 mm
300 mm
300 mm
1200 mm
1200 mm
1200 mm
1500 mm
300 mm
500 mm
As determined by the fixed collar
of the vertical terminal
5