EB 8026 EN 27
Mounting and start-up
AAB
B
A
AB
B
A
AB
B
AAB
B
A
AB
B
A
AB
B
A
AB
B
AB
A
B
Heating with diverting valve (FA) or cooling with diverting valve (FE)
Installation in return ow pipe Installation in ow pipe
Flow pipe
Installation in return ow pipeInstallation in ow pipe
Heating with mixing valve (FA) or cooling with mixing valve (FE)
Fail-safe action: FA = "Actuator stem extends", FE = "Actuator stem retracts"
In heating applications with FA, the heating medium (ow) is shut off in the fail-safe position,
in cooling applications with FE, cooling is maintained in the fail-safe position.
Mixing service
Temperature control Q = constant
Diverting service
Flow control Q = 0 to 100 %
Flow pipe
Flow pipe
Flow pipe
Flow pipe
Return ow
pipe
Return ow
pipe
Return ow
pipe
Return ow
pipe
Flow pipe
Flow pipe Flow pipe
Return ow
pipe
Return ow
pipe
Return ow
pipe
Return ow
pipe
Fig.6: Typical installations