Maintenance
Variomat 1 — 06.07.2016 – Rev. B
English — 57
10.2
Cleaning the dirt trap
CAUTION
Risk of injury due to pressurised liquid
If installation, removal or maintenance work is not carried out correctly, there is a risk of burns and other injuries at the connection
points, if pressurised hot water or hot steam suddenly escapes.
•
Ensure proper installation, removal or maintenance work.
•
Ensure that the system is de-pressurised before performing installation, removal or maintenance work at the connection points.
The "ST" dirt trap must be cleaned after the expiry of the continuous degassing time at the latest. An inspection is also required after
longer lasting operation.
•
Switch to Stop mode.
•
Close the ball vales upstream of the "ST" dirt trap (1) and
the primary tank.
•
Slowly unscrew the dirt trap insert (2) from the dirt trap in
order for the residual pressure to escape from the pipeline
segment.
•
Pull the mesh from the dirt trap insert and rinse it with
clear water. Use a soft brush for cleaning.
•
Re-insert the mesh into the dirt trap insert, check the
gasket for damage, and screw the dirt trap insert back into
the housing of the "ST" (1) dirt trap.
•
Open the ball vales upstream of the "ST" dirt trap (1) and
the primary tank.
•
Vent the "PU“ pump, see chapter 7.5 "Venting the pump"
on page 41 .
•
Switch to Automatic mode.
1
"ST" dirt trap
2 Dirt trap insert
Notice!
Clean all other installed dirt traps (in the Fillset, for example).
Содержание Variomat VS 1
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