Elecro Engineering Spectrum Hybrid SH-110, Installation & Operating Manual

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Wipe a little silicone grease or Vaseline (not silicone sealant) onto these
threads. As these threads are only serviced periodically, this lubrication will
help to prevent them binding together. Then refit and firmly hand tighten
the compression fittings. Refit or replace the UV lamp(s) with a new one.
Relocate the lamp holders and blue lamp holder shrouds ensuring that
you match the correctly numbered lamp holder.
Note:
Pinch the blue lamp holder shroud as you reassemble the unit to
release any trapped air. Failure to release the trapped air may cause the
lamp holder to disconnect from the lamp end. Reconnect and turn on the
water supply to check for leaks before reconnecting the electric supply.
Important:
The plastic body and blue compression fittings have been
manufactured from polymers that have been specifically stabilised to
protect them from the effects of the UVC emitted from the UV lamps.
Despite this UV protection they will be eroded by a combination of the
UVC and water flow. As a matter of course they should be inspected
whenever a lamp change is carried out, to ensure they are not showing
excessive wear and tear. Replacement parts are available.