Riello RLS 28/E, Инструкции по установке, использованию и обслуживанию

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20059594 26 GB
Installation
4.11.3 Gas pressure
The Tab. L are used to calculate manifold pressure taking into ac-
count combustion chamber pressure.
Gas manifold pressure measured at test point 1)(Fig. 26), with:
–
Combustion chamber at 0” WC
– Burner operating at high fire
– Natural gas
Calculate the approximate high fire output of the burner as follows:
➤
subtract the combustion chamber pressure from the gas pres-
sure measured at test point 1)(Fig. 26).
➤ Find the nearest pressure value to your result in the table for
the burner in question.
➤
Read off the corresponding output on the left.
Example with natural gas:
–
High fire operation
– Gas pressure at test point 1)(Fig. 26) = 3.66” WC
– Pressure in combustion chamber = 0.79” WC
– 3.66 - 0.79 = 2.87” WC
A high fire ouput of 796 MBtu/hr shown in Tab. L corresponds to
2.87” WC pressure, natural gas.
This value serves as a rough guide, the effective delivery must be
measured at the gas meter.
Tab. L
MBtu/hr
∆∆∆∆
p (“ WC)
616
700
796
890
985
1079
1174
1232
2.56
2.68
2.87
3.15
3.43
3.78
4.09
4.33
Fig. 26
D2786