Download Installation & Servicing Manual

2.12 PUMP DUTY
Fig. 6 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 20oC temperature differential.
6,8
6,4
6,0
Residual head (x 100 mbar)
5,6
5,2
4,8
4,4
4,0
3,6
3,2
2,8
2,4
2,0
1,6
1,2
0,8
0,4
0,0
Fig. 5
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
Flow rate (l/h)
Fig. 6
Key
8
Location
A
B
C
D
E
F
G
H
I
J
K
L
M
N
P
Q
Below an opening (window, air-brick, etc.)
Above an opening (window, air-brick, etc.)
To the side of an opening (window, air-brick, etc.)
Below gutter, drain-pipe, etc.
Below eaves
Below balcony, car-port roof, etc.
To the side of a soil/drain-pipe, etc.
From internal/external corner
Above ground, roof, or balcony level
From a surface or boundary facing the terminal
From a terminal facing a terminal
From an opening in the car-port into the building
Vertically from a terminal on the same wall
Horizontally from a terminal on the same wall
From a structure to the side of the vertical terminal
From the top of the vertical terminal to the roof flashing
R
S
T
V
W
To the side of a boundary
To the side of an opening or window on a pitched roof
Below an opening or window on a pitched roof
From a vertical terminal to an adjacent opening (window, air-brick, etc.)
From a vertical terminal to an adjacent vertical terminal
Minimum distance
300 mm
300 mm
300 mm
25 mm
25 mm
25 mm
25 mm (60mm for 80/125 - 5” flue)
25 mm (60mm for 80/125 - 5” flue)
300 mm
600 mm
1200 mm
1200 mm
1500 mm
300 mm
300 mm
As determined by the fixed collar
of the vertical terminal
300 mm
600 mm
2000 mm
(call Vokera technical for advice)
300 mm (only if both terminals are the same hight)