Lamp Replacement; Maintenance - Dimplex QXD1500E Instruction Manual

Lamp Replacement

WARNING: Before undertaking this task ensure the heater is disconnected from the
electricity supply and left to cool for a minimum of 30minutes.
1. Detach heater from its mounting position.
2. Unscrew the rear panel by loosening the corner fixing screws, and then lift rear panel
clear.
3. Disconnect the wires to the old lamp by removing the lock nuts retaining the terminal
ends adjacent to the lamp clips. Do not slacken the screws as this could disturb the
internal wiring.
4. Remove the lamp by gently releasing the ends from the spring clips. Keep the lamp
secure and do not twist the ends or apply undue force. IMPORTANT - Release and
retain the high temperature cable ties from the element wires. (These must not be
substituted).
5. Before removing the new lamp(s) from its protective packing it is important to be
aware that quartz lamps are fragile and must be handled with care at all times. Avoid
touching the surface of the quartz sleeve with bare fingers. If the sleeve is accidentally
touched remove the finger print with a soft cloth moistened with methylated spirit.
6. Hold the lamp firmly but gently at each end and offer up to the spring mounting
clips. The wire leads should face towards the front of the heater. Push the lamp fully
into the clips taking care to keep it square. Do not twist the ends or apply undue
force. If either end of the lamp will not easily engage in the spring clips remove the
lamp and gently ease the spring.
7. The wire from each end of the lamp must be connected to the threaded connector
ON THE SAME CLIP AS THE LAMP END. With the outside not loosened, insert the
spade between the two outside nuts and tighten firmly.
8. When the lamp has been fitted check that the electrical connections have been
correctly made. Re-use the same cable tie to tether the element wires in place. Re-
fit the raer panel, checking that wires are not trapped.

Maintenance

Since the Dimplex Quartz Heater contains no moving parts little maintenance is required
beyond cleaning and lamp replacement. It is however, essential that the heater is not
operated with accumulation of dust or dirt on the lamp(s) or reflector(s) as this can
cause a build up of heat and eventual damage. For this reason the heater must be
inspected regularly depending upon conditions and at least at yearly intervals.
Before undertaking any maintenance work on the heater due attention must be paid
to the following:
1. Always disconnect the heater from the electricity supply before attempting to work
on or near it.
6