Mac Tw1 Internal Dimmer Installation Note - Martin MAC TW1 User Manual

MAC TW1 Internal Dimmer
Installation Note
MAC TW1 fixtures are available in multi-voltage IGBT internal dimmer and 80 V internal dimmer models.
The IGBT and 80 V internal dimmer units are also available as 'plug and play' accessories so that you can
change from one dimmer type to another. This note explains how to carry out this change. It covers the
following products:
• Internal 80 V dimmer, MAC TW1 (P/N 91614026)
• Internal multi-voltage IGBT dimmer, MAC TW1 (P/N 91614027).
S a f e t y i n f o r ma t i o n
Important! As with electronic components in general, the MAC TW1's PCBs are sensitive to
ESD (electrostatic discharge). The IGBT dimmer is particularly sensitive and touching it
carelessly can damage it beyond repair. Damage caused by ESD is not covered under the
product warranty. Take precautions to avoid ESD damage before opening the fixture.
Service electronic components at a static-safe workstation only.
I n s t a l l a t i o n
To install an internal dimmer:
1. Disconnect the luminaire from power, allow it to cool for at least 20 minutes
and place it at a static-safe workstation.
2. Take precautions to avoid ESD (anti-static bracelet or similar device).
3. See Figure 14. Dimmer units are
integral with the rear base cover. The
dimmer type is labelled on the top of
the cover. Loosen the screws in the
cover and slide the currently
installed cover/dimmer unit out of the
fixture. Avoid strain on the dimmer
unit wiring.
© Martin Professional 2006. All rights reserved. No part of this document may be reproduced, in any form or by any means, without
permission in writing from Martin Professional A/S. Information subject to change without notice. Martin Professional A/S and all affiliated
companies disclaim liability for any injury, damage, direct or indirect loss, consequential or economic loss or any other loss occasioned
by the use of, inability to use or reliance on the information contained in this document. P/N 35000581, Rev. A
DANGER! Disconnect the fixture from power, allow it to cool for at least 20
minutes and read the Safety Information section in the MAC TW1 user manual
(available from http://www.martin.com/service) before attempting to install an
internal dimmer unit. Installation must be carried out by qualified professional
technicians only.
Figure 14: Removing base cover and dimmer unit