Attention! Note the general safety instructions (→ p. 5)!
We recommend that you have the maintenance work performed and certified
(→ p. 33) by your Reflex Service (→ p. 31).
The ’variomat’ must be maintained annually. Maintenance work should only be carried
out by specialists. We recommend that you have this done by your Reflex Service.
As a reminder of the maintenance to be performed annually, the “Maint. recomm.”
message appears once the set operating time is up; this message can be acknowledged
with the “quit” button.
Leak test
– Check for external leaks, in particular the pump and screw connections
– Check the non-return valve (7) for direct closing
(flow noises, frequent switching of the pump)
Clean dirt traps
– Pull the power supply plug (’variomat 1’), power switch off (’variomat 2’).
– Shut-off the overflow line with cap ball valves towards the system and the
VG basic vessel.
– Clean the dirt trap (4) in the overflow line (→ p. 19).
Clean the dirt trap in the water make-up line (reflex ’fillset’) if present.
De-sludge the VG basic vessel and the VF secondary vessel
– Empty completely using the draining tap on the bottom vessel cover. Loosen the hose
connection to the ’variomat’ control unit, unscrew the lower vessel lid and clean, check
the diaphragm/container compartment, re-establish all connections.
Function test
Plug ’variomat 1’ power supply plug into socket.
Switch on ’variomat 2’ power switch.
Check the switching points of the water make-up facility
– Set the controller to “Auto”, fill the VG basic vessel using automatic water make-up,
check the switching points for low water and WM on/WM off, manually increase the
filling level to the previously noted value (if required using the filling and draining tap).
The switching point can also be checked by loading and relieving the level gauge
(oil cell).
Check the switching points for automatic operation
– Manually set the pump to over the response pressure for the overflow valve and
switch to “Auto”; the overflow valve must open and close again at the set value.
– Manually set the overflow valve to below the switch-on pressure for the pump and
switch to “Auto”; the pump must turn on and turn off again at the set value.
7% 1.6 bar
Maint.recomm.
quit
reflex ’variomat’
Maintenance, inspection, disassembly
26
Maintenance instructions
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