Oase BioMaster 250, Operating Instructions Manual

Page: 22 / 204

- EN -
22 BioMaster 250/350/600, BioMaster Thermo 250/350/600/850
Removing the heater
The heater has to be removed for cleaning and mainte-
nance, and for removing the unit head.
How to proceed:

C
1. Hinge up the handle.
2. Unscrew the holding ring together with the heater
counter-clockwise.
Fitting the heater
How to proceed:

D
1. Screw the holding ring with heater clockwise into
the threaded hole.
–
To exchange the heater: Moisten the glass bulb
with water and push the heater into the holding
ring as far as it goes.
2. Place the power connection cable into the cable
guide.
3. Hinge the handle down.
Removing the connection unit
The heater has to be removed for cleaning and mainte-
nance, and for removing the unit head when hoses are
connected.
How to proceed:

E
1. Push the lever to the "UNLOCK" position.
–
The lever can only be moved when the pre-filter
is locked.
–
The inlet and outlet are closed.
2. Remove the connection unit.
Fitting the connection unit
How to proceed:

F
1. Fit the connection unit and push it into the unit
head as far as it goes.
–
Ensure that the ridges on the connection unit are
correctly aligned to the recesses on the unit
head.
2. Push the lever in the direction "LOCK".
–
The inlet and outlet are open.
Removing the pre-filter
It has to be removed for cleaning and maintenance
and for removing the unit head.
How to proceed:

G
1. Push the lever to the "UNLOCK" position.
–
The inlet and outlet are closed automatically.
2. Pull out the pre-filter.
Fitting the pre-filter
How to proceed:

H
1. Fit the pre-filter into the opening and firmly push it
into the unit head as far as it goes.
–
Ensure that the ridges on the pre-filter are cor-
rectly aligned to the recesses on the unit head.
2. Push the lever to the "padlock closed" symbol.
–
The pre-filter is locked.
Dismantling the unit head
It has to be removed for cleaning and maintenance
and for changing the filter media.
Prerequisite:
•
The heater has been removed. (→ Removing the
heater)
•
The connection unit has been removed.
(→ Removing the connection unit)
•
The pre-filter has been removed. (→ Removing the
pre-filter)
How to proceed:

I
1. Hinge up the handle.
2. Undo the fasteners.
3. Remove the unit head.
Fitting the unit head
How to proceed:

J
1. Check that the seal on the unit head is correctly po-
sitioned.
–
Clean the seal, replace it if damaged.
2. Ensure that the filter baskets are correctly assem-
bled and aligned.
3. Fit the unit head onto the container.
–
Ensure that the opening for the pre-filter is
aligned to the recess in the filter baskets.
4. Lock the fasteners in place.
5. Hinge the handle down.