12
8.
Care and maintenance
8.1
Service
.
8.1.1 If the unit is disabled (e.g., lamps not working, no reaction on key and switch presses)
or requires maintenance, disconnect the unit from the mains and contact Biosan or
your local Biosan representative.
8.1.2 All maintenance and repair operations (except listed below) must be performed only
by qualified and specially trained personnel.
8.1.3 Operating integrity check. If the unit follow the procedure described in section
Oper-
ation
, then no additional checks are required.
Figure 4.
Figure 5
Figure 6
8.2
Fuse replacement
.
8.2.1 Fuse for the control box. Disconnect the unit from electric circuit. Remove power ca-
ble from its socket on the rear side of the unit. Open the fuse holder by pulling out the
holder (fig. 4, compact models) or by screwing off the holder lid marked FU2 (fig. 6,
model
UVT-S-AR
). Check the fuse and replace if necessary,
М
3.15 A (type
M
- time
lag:
M
edium).
8.2.2 Fuse for the mains outlets (for models with built-in mains outlets). Disconnect the unit
from electric circuit. Open the fuse holder by screwing off the holder lid (fig. 5/2 or
fig 6, FU1). Check the fuse and replace if necessary,
М
5.0 A (type
M
- time lag:
M
edium).
8.3
UV lamp replacement
. Average lifetime of UV lamps supplied is 9000 hrs. Replace-
ment is necessary after lamp stops functioning or at the end of manufacturer specified
lifetime.
Note.
Open UV lamp operation can be checked with the visible light lamp
switched off (switch
1
is OFF). Use the indicator in the centre of recircu-
lator cover (fig. 1/3) to check operation of UV lamp inside the recirculator.
If indicator lights from inside while switch
2
is ON, then the UV lamp is
functioning.
Summary of Contents for BS-040102-AAA
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