Space-Ray CBU09, Инструкция по установке, обслуживанию и эксплуатации

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Form 483S
Rev Jan 09
Page 18 of 53
Note
1
: first length is parallel section second length is concentric section.
A2 - Fresh air horizontal
A2 - Fresh air vertical
B22 - Fresh air and flue horizontal B22 - Fresh air and flue vertical
B22 - Flue horizontal
B22 - Flue vertical
C52 - Fresh air & Flue horizontal in different pressure
zones
C52 - Fresh air vertical & Flue horizontal in different
pressure zones
C12 - Fresh air & Flue horizontal in concetric ducts
C12 - Fresh air & Flue horizontal in concetric ducts
C32 - Fresh air & Flue vertical in concetric ducts
C52 - Fresh air horizontal & Flue vertical in different
pressure zones
Fig. 14
5.4.2.4. Type
A
2
:
Outside (ducted) combustion air supply. When installed in a dusty or polluted atmosphere, the heater should
be fitted with a ducted supply of clean fresh air. A length of 100mm flexible ducting should be installed between
the Control Box Air Inlet and any rigid ducting and be secured to the Air Inlet with hose clips.
Where outside combustion air is ducted directly to the burner(s) the low level natural ventilation openings shall
be not less than 50
%
of the areas given in 6.4.2.1 above.
5.2.4.5. Type B
22
:
When installing external flue single duct systems with ducted combustion air supply the distance between the
flue terminal and fresh air intake shall be no less than 1 m for both vertical and horizontal systems
5.2.4.6. TypeC
12
:
The following figure shows the typical arrangements for concentric sidewall flues, see table 14 for 90° bend
equivalent lengths. The bends shown in the illustrations connecting the combustion air intake to the concentric
ducts is calculated into the overall length. For example a system with one additional 150/100mm Ø concentric
90° bend can be installed with 1m 100mm flue single pipe and the combustion air single pipe as shown with
5.5m of 150/100mm Ø straight concentric flue. (8m – 2.5m from table 14)
Note: Type C
12
is not approved for the CBU15 / SRL15. Type C
12
is approved U-Tube models only.