Mira EXCEL Installation & User Manual page 21

Start
Measure and record supply temperatures,
pressures and make sure that they are within
the valve specification.
Measure and record blend temperature
and flow rate.
flow rate fallen
significantly or fallen below
minimum flow
specification
Carry out a Performance Check.
Refer to the Commissioning Procedure.
blend temperature
changed by more than
2 °C from previous
recorded value
Finish
Note! All measurements and results should be recorded in the Log Book.
(Tb)
Has
Yes
?
No
Has
Yes
(Tb)
?
No
Flow diagram
In-service Test Procedure
Check and clean checkvalves,
strainers and outlets.
Measure and record blend
temperature
Yes
Refer to Fault Diagnosis
Commissioning Procedure.
21
and flow rate.
(Tb)
Has
flow rate improved
?
No
Carry out the