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2.6
PUMP DUTY
Fig. 4 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.
600
550
500
450
400
350
300
250
200
150
100
50
0
0
2.7
HOW TO FREE THE PUMP
To "release" the seized rotator shaft:
- set boiler status to OFF by pressing button 1
- remove the casing as detailed in paragraph "4.7"
- Remove the circulator cap
- With a slotted screwdriver, rotate the shaft being careful not
to strain the seat (Fig. 5)
To extract the connector holder, lever with a screwdriver as
shown in Fig. 6
- Refit the cap and press key 1 to select the type of operation
desired.
Carry out the operation with extreme caution so as not to da-
mage the components themselves.
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
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
R
To the side of a boundary
S
To the side of an opening or window on a pitched roof
T
Below an opening or window on a pitched roof
V
From a vertical terminal to an adjacent opening (window, air-brick, etc.)
W
From a vertical terminal to an adjacent vertical terminal
100
200
300
400
500
600
700
800
900
1000
Flow rate (l/h)
300 mm (only if both terminals are the same height)
1100
1200
1300
1
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)
Fig. 4
Fig. 5
Fig. 6
Fig. 7
15
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