Siemens RVW26.000B27 User Manual

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Siemens Building Technologies Electronic Air / Fuel Ratio Control System CC1P7873.1en
HVAC Products 3 General 15.10.2002
AIR
M
SA5
78731d01/0601
M
FU
M
SA4
M
M
FUEL1
FUEL2
SA2
SA3
M
SA7
Fig. 6 Dual-fuel burner with flue gas recirculation and flue gas damper
AIR
78731d02/0601
M
FU
M
SA4
M
M
FUEL1
FUEL2
SA2
SA3
M
SA7
M
SA5
H O
2
Fig. 7 Dual-fuel burner with flue gas damper and water injection
All combinations shown above can also be used in connection with O2 trim control. In
all cases, O
2 trim control acts on the fan motor that is controlled by the variable speed
drive. On the applications according to Figures 4 and 5, the airflow resistance (volumet-
ric airflow) also changes depending on actuator «SA5» of the RVW26... To ensure that
«SA5» can also be influenced by O
2 trim control, parameter «Disturb» on programming
level 4 must be set to the same value as with the RVW25...

Siemens RVW26.000B27 Specifications

General

Brand	Siemens
Model	RVW26.000B27
Category	Control Systems
Language	English