Maintenance And Care - JBL PROCRISTAL UV-C 5W Instructions For Use Manual

electrical unit (2 a). If not, please check the correct connection between bulb and socket (see
chapter maintenance and care).
IMPORTANT: To ensure a long and trouble-free operation please make sure to allow air to
completely escape from the device during the starting-up and after operating pauses.


Maintenance and care

Before working on the device or in the aquarium/pond disconnect all electrical appliances
in the aquarium/pond from the mains. The plug should never be pulled out of the socket
by the cable. Always hold the plug when disconnecting.
Deposits (dirt, limescale etc.) inside the casing prevent the optimum efficacy of the UVC water
clarifier. Therefore the appliance should be cleaned inside about twice a year (more frequently if
performance significantly deteriorates). The UVC lamp should be replaced once a year in the early
spring (when operating in garden ponds) or after max. 6000-8000 operating hours.
 Cleaning
Loosen the hoses and let the water run out of the appliance. Unscrew the upper part of the
holder (1a) and remove the device from the holder (1).
Push the red lock at the electrical unit (2) on position „Open". Open the bayonet catch at the
casing (5) by a short anticlockwise turn and remove the casing in a longitudinal direction. After a
longer operating period it can happen that the lubricant at the O-ring (2 b) has dried out and that
more effort is needed to turn it.
Clean the inner surface of the casing (5) with water and a microfibre cloth (JBL WishWash).
Limescale deposits can be easily removed after soaking for a short time in JBL Clean A. Make
sure not to damage the inner glass sleeve inside the casing. Clean the outside of the quartz glass
cylinder (4) in the same way.
If the replacement of the bulb is not necessary grease the O-ring (2) at the electrical unit (2)
with commercially available petroleum jelly (Vaseline) and re-connect the casing by turning it
clockwise to the electrical unit.
Push the red lock to the „Close" position.
Return the device to its previous position and put it into operation as described in point 2) and 3).
 Replacing the bulb
Open the device as described in point 4).
Loosen the locking screw (4 c) at the union nut (4b) of the quartz glass cylinder (4) and open the
union nut.
Carefully pull out the quartz glass cylinder (4) with the union nut (4 b) and sealing collar (4 a) in a
longitudinal direction.
Take off the bulb cap (3 b) and the protective ring (3 a) and pull the bulb out of its socket in a
longitudinal direction.
12