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
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