Supplied By www.heating spares.co Tel. 0161 620 6677
5
Fig. 4
Key
Location
Minimum distance
A
Below an opening (window, air-brick, etc.)
300 mm
B
Above an opening (window, air-brick, etc.)
300 mm
C
To the side of an opening (window, air-brick, etc.)
300 mm
D
Below gutter, drain-pipe, etc.
25 mm
E
Below eaves
25 mm
F
Below balcony, car-port roof, etc.
25 mm
G
To the side of a soil/drain-pipe, etc.
25 mm
H
From internal/external corner or boundary
300 mm
I
Above ground, roof, or balcony level
300 mm
J
From a surface or boundary facing the terminal
1200 mm
K
From a terminal facing a terminal
1200 mm
L
From an opening in the car-port into the building
1200 mm
M
Vertically from a terminal on the same wall
1500 mm
N
Horizontally from a terminal on the same wall
300 mm
P
From a structure to the side of the vertical terminal
500 mm
Q
From the top of the vertical terminal to the roof flashing
As determined by the fixed collar
of the vertical terminal
2.11
PUMP DUTY
Fig. 3 shows the flow-rate available – after allow-
ing 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 °C temperature differential.
Fig. 3
Flow rate (l/h)
Residual head (x 100 mbar)
0,0
0,2
0,4
0,6
0,8
1,0
1,2
1,4
1,6
1,8
2,0
2,2
2,4
2,6
2,8
3,0
3,2
3,4
3,6
3,8
4,0
4,2
4,4
4,6
4,8
5,0
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1st speed
2nd speed
3rd speed
0,0
0,2
0,4
0,6
0,8
1,0
1,2
1,4
1,6
1,8
2,0
2,2
2,4
2,6
2,8
3,0
3,2
3,4
3,6
3,8
4,0
4,2
4,4
4,6
4,8
5,0
5,2
5,4
5,6
5,8
6,0
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
Flow rate (l/h)
Residual head (x 100 mbar)
1st speed
2nd speed
3rd speed
Mynute
12-15-20-25 HE
Mynute
30-35 HE