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Idiomas disponibles
Operation
Indication on the
Meaning
display
P0 = xx.x bar
The last 10 entries of the minimum working pressure are
stored with date and time.
Date | Time
The system displays the values for the volume and the
Tank info
diameter of the "VG" primary tank.
00800 l
•
If you identify differences to the information
provided on the primary tank's nameplate, please
contact the Reflex Customer Service.
Pos. motorized
This value displays in percent the opening angle of the
ball valve
motor ball valve of the overflow line.
000 %
Variomat
Information about the software version
mkh V1.00
8.7
Starting Automatic mode
The Automatic mode can be started as soon as the system is filled with water
and the gases contained have been vented.
•
At the controller, press "Auto" for automatic operation.
–
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", 45.
9
Operation
9.1.1
Automatic mode
Use:
After initial commissioning has been successfully completed
Start:
Press "Auto" on the controller. The Auto LED lights up.
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 tank, 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", 40. The controller display supplies the necessary information.
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.
42 — English
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:
Press "Manual" on the controller. The Auto LED at the operator panel flashes to
visually indicate that Manual mode is active.
Functions:
Manual mode allows you to select the following functions and to perform a test
run:
•
"PU" pump.
•
"PV" motor ball valve in the "PV" overflow line.
•
"WV" make-up solenoid valve.
You can switch several functions after each other and test them at the same
time.
30 % 2.5 bar
PU1!* PV1 WV1
•
Press "OK".
–
Confirm the selection or shut-down of the individual functions.
•
"Quit" button
–
Shut-down of the individual functions in reverse order.
–
Press "Quit" for the last time and the system moves in Stop mode.
•
"Auto" button
–
Return to Automatic mode.
Note!
Manual operations cannot be performed if safety-relevant parameters
would be exceeded. Switching is then disabled.
9.1.3
Stop mode
Use:
During maintenance work on the device.
Start:
Press "Stop" on the controller. The Auto LED at the operator panel extinguishes.
Functions:
Except for the display of information, the device is non-functional in Stop mode.
Function monitoring is stopped.
The following functions are deactivated:
•
The "PU" pump is switched off.
•
The "PV" motor ball valve in the "PV" overflow line is closed.
•
The solenoid valve in the "WV" make-up line is closed.
Note!
The system returns an alarm if the Stop mode is activated for more than
4 hours.
If "Floating alarm contact?" in the Customer menu is set to "Yes", the
system outputs the alarm to the group alarm contact.
9.1.4
Summer operation
Use:
In summer
Start:
Switch off degassing via the customer menu.
Variomat Basic — 09.09.2022-Rev. C
•
Use the "Switch up/down" keys to select the
function.
–
"PU1" = Pump
–
"PV1" = Solenoid valve in the overflow line
–
"WV1" = solenoid valve make-up
(* selected and active units are marked with
"!").
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