Supplied By www.heating spares.co Tel. 0161 620 6677
6
2.11
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 ºC temperature differential.
Fig. 4
SECTION 3
GENERAL REQUIREMENTS
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
25mm
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
2.12 Appliance
NOx
94 ppm - 166 mg/kWh
92 ppm - 162 mg/kWh
CO (max-min)
80 ppm - 80 ppm
100 ppm - 60 ppm
CO
2
(max-min)
6.75 - 3.90 %
7.05 - 3.50 %
CO/CO
2
ratio (max)
0.001 to 1
0.001 to 1
CO/CO
2
ratio (min)
0.002 to 1
0.002 to 1
85 HE
100 HE
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
first speed
second speed
third speed
85 HE - 100 HE
