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Verfügbare Sprachen
Verfügbare Sprachen
Operation
•
Remove the vent screws from the pumps and vent the pumps until bubble-
free water escapes.
•
Screw the vent screws back in and tighten.
•
Check the vent screws for leaks.
Note!
•
Repeat venting after the first starting of the pump. It is possible
that downstream air cannot escape with the pumps stationary.
•
Repeat the venting process , if the delivery rates of the pumps
remain at zero.
8.6
Parametrising the controller in the Customer menu
Use the Customer menu to display or correct system-specific values. In the
course of commissioning, the factory settings must be adjusted for the system-
specific conditions.
–
For adjusting the default settings, 10.3 "Configuring settings in the
controller", 43.
–
For information about controller operation, 10.1 "Operator panel", 43.
8.7
Starting Automatic mode
Automatic mode can be started as soon as the system is filled with water and the
gases contained have been vented.
• Press button "AUTO".
–
During commissioning, continuous degassing is automatically
activated to remove any residual free or dissolved gases from the
system. This time can be set in the Customer menu as required by the
system conditions. The default setting is 12 hours. Subsequent to the
continuous degassing, the device automatically switches to interval
degassing.
Note!
The commissioning process is now concluded.
Notice!
The "ST" dirt trap in the "DC" degassing line must be cleaned after the
expiry of the continuous degassing time at the latest, 11.1.1
"Cleaning the dirt trap", 47.
9
Operation
9.1.1
Automatic mode
Use:
After initial commissioning has been successfully completed
Start:
Press "AUTO".
Functions:
•
Automatic mode is suitable for continuous device operation and the
controller monitors the following functions:
–
Pressurisation
–
Expansion volume compensation
–
Degassing
–
Automatic make-up.
•
The "PU" pump and the "PV1" motor ball valve of the overflow line are
regulated by the controller so that the pressure that is being regulated
remains constant to within ± 0.2 bar.
•
Faults are indicated and evaluated in the display.
• The "PV1" motor ball valve of the overflow line remains open during the
adjustable degassing time as long as the pump "PU" continues to run.
• In the de-pressurised "VG" primary vessel, the system water is expanded and in
this way degassed.
•
For Automatic mode, you can set various degassing programmes in the
Customer menu, 8.6 "Parametrising the controller in the Customer
menu", 42. The controller display supplies the necessary information.
42 — English
Continuous degassing
After commissioning and repairs to the connected system, select the continuous
degassing program.
The device will continuously degas for a set period of time. Free and dissolved
gases are quickly removed.
•
Automatic start after execution of the start routine during commissioning.
•
Activated from the Customer menu.
•
The degassing time can be set in the Customer menu, dependent on the
actual system.
–
The default setting is 12 hours. After expiry of the set time, the device
automatically switches to interval degassing.
Interval degassing
For continuous operation, select the interval degassing program. As the default it
is set in the Customer menu.
Degassing is continuous during an interval. An idling time follows an interval.
The interval degassing mode can be limited to an adjustable time period. Time
settings can be made in the Service menu.
•
Automatic activation upon expiry of continuous degassing.
•
Degassing interval (default 90 s)
•
Break time (default: 120 min)
•
Start / end (8:00 a.m. - 6:00 p.m.)
9.1.2
Manual mode
Use:
For testing and maintenance tasks.
Start:
1.
Press "Manual mode".
2.
Select the desired function.
Functions:
Manual mode allows you to select the following functions and to perform a test
run:
•
"PU" pump.
•
"Motor ball valve in the "PV1" overflow line.
•
The solenoid valve "WV1" for makeup.
You have the option to simultaneously switch multiple functions and to test
them in parallel. Switch the function on and off by touching the corresponding
button:
•
The button is highlighted green. The function is switched off.
Press the desired button:
•
The button is highlighted blue. The function is switched on.
The change in the filling level and the vessel pressure are indicated on the
display.
Note!
Manual operations cannot be performed if safety-relevant parameters
would be exceeded. Switching is then disabled.
9.1.3
Stop mode
Use:
For device commissioning
Start:
Press "STOP".
Variomat 140 — 25.09.2020 - Rev. A
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