Table of Contents
Advertisement
reflex 'variomat'
Operation
Automatic mode
General
Automatic mode may only be started after initial start-up has been successfully
completed. The function to maintain pressure, compensate the expansion volume, degas
and automatically make-up water is then active.
The pump and overflow motorised ball valve are actuated so that the pressure remains
constant within the limits ± 0.2 bar. The electronic controller monitors the functions. Faults
are displayed and evaluated. If the default setting is not changed, after initial start-up
the 'variomat' will operate in the "continuous degassing" program for the time set in the
customer menu.
Degassing program variants
Continuous degassing
Intensive degassing following start-up and repairs to the connected pipe network. The
degassing cycles are executed successively for the set continuous degassing time
(12 h basic setting). The controller then automatically proceeds with follow-up degassing.
Interval degassing – Economy mode in automatic mode
Is executed according to a defined schedule. Degassing takes place at defined intervals
for a defined time. The necessary specifications can be made in the service menu. The
option is also provided of allowing interval degassing within a specific time window only.
(Service menu.)
Follow-up degassing
Takes place automatically each time the pump starts. (The corresponding overflow
motorised ball valve opens following the switch-off signal for the pump.) The pump and
the valve keep working simultaneously for a time defined in the service menu.
20
The selected degassing program is shown in the message line during execution of
the respective program only.
Manual mode
In manual mode all pumps or solenoid valves can be turned on or off. To activate manual
mode, press the "hand" operating mode button. The adjacent display appears. All pumps
or solenoid valves in operation will be switched off.
Example: Turning on and off pump 1
Select P1 (flashes)
Several devices can be turned on at once. Devices that are turned on are indicated by
an exclamation mark.
The function of the pumps and overflow valves is monitored for safety-relevant
parameters. If several devices are turned on, they are turned off in reverse order by
repeatedly pressing the "quit" button. Once all devices are turned off, you are in stop
mode.
Stop mode
Only the display of the 'variomat' is operational in stop mode. Operation monitoring does
not take place. All pumps, motorised ball valves or solenoid valves are switched off. The
adjacent display appears when the "stop" button is pressed.
A message will be output if stop mode is active for more than 4 hours.
Pump 1 on (P1! flashes)
ok
Pump 1 off
quit
auto
30%
2.1 bar
Continuous deg.
30%
2.1 bar
Interval deg.
30%
2.1 bar
Follow-up deg.
hand
30%
2.1 bar
P1! P2 O1! O2 WM
Example:
Pump 1 and overflow valve 1
are turned on.
P1 is selected and can be
switched by pressing the
"ok" button.
stop
25%
1.8 bar
Stop
25%
1.8 bar
Stop > 4 h
19
Hide quick links:
Advertisement
Table of Contents
