Algas-SDI Operations and Maintenance Manual – P/N – 54702
4-9
4.
Start-Up
The following procedures must be performed to each
BLENDAIRE
system when
they are first installed.
**Refer to Figure 2 – Component Diagram for item numbers.
STARTING THE MIXING SYSTEM (INITIAL ADJUSTMENT)
BLENDAIRE REGULATOR ADJUSTMENT PROCEDURE
1. Make sure all field connections to mixer are completed and leak tested.
Make all electrical connections to mixer per customer drawing and electrical
drawing.
2. Turn on mixer but do not start. Verify through mixer HMI screens all
instruments are connected and reading.
3. Open valves to supply Instrument Air, LPG and AIR to mixer. Keep mixed
gas outlet valve closed.
4. Verify pressure readings on mixer LPG and AIR pressure transmitters match
data sheet. Adjust regulators as needed to set pressure to data sheet
values.
NOTE
The LPG in the system must remain in the gaseous state at all
times. The regulators will not operate properly if there is ANY liquid
in the system. Perform all necessary procedures to eliminate liquid
in the system.
5. Make adjustments to LPG and AIR regulators as required under flowing
conditions. Initial regulator settings can be found in the QA and Data Sheets.
BLENDAIRE MIXING RATIO ADJUSTMENT PROCEDURE
Ratio adjustment is conducted through settings in the HMI on the control panel.
Refer to the
BLENDAIRE
HMI user manual for ratio adjustment settings.
STARTING THE BLENDER
1. Apply power to the control panel.
2. Depress the
START
switch on the HMI panel
.
3. The instrument air solenoid valve will be actuated and the outlet pressure
should increase to operational pressure.
4. Start the system on a
FLARE STACK
to dispose of the initial gas.
5. Adjust the mixing ratio or Wobbe Index setpoint of the mixer to the desired
value on the HMI screen.
6. If necessary adjust line pack cut-in and cutoff pressures to desired values.
Refer to the
BLENDAIRE
HMI user manual for operating set point
adjustments.
