PROJECT SCOPE 336 fluorescent batten fittings (T8 36W 1200mm single & double) were replaced by 312 chamaeleon standard and emergency fittings in the fire stairs, back of house corridors, car park driveways & parking bays. enLighten’s 90w 2 module Tauro Blu LED low bay lights replaced double fluorescent battens in the undercover car park entries. The 87% energy savings were achieved through the Chamaeleon light’s award winning & patented dual circuit design. The light operates on a standby level of light output, consuming 7-8W. Once movement is detected, the light instantly switches to full light output (31-2W) via the integral microwave motion sensor. Average consumption of a 24 hour period is under 10 watts in low occupancy spaces.
Fig 1: Fire stair egress lighting
A competitive project payback of 2.7 years including installation costs was achieved due to the hotel’s extended 24/7 operating hours. This result also included a highly competitive electricity tariff rate.
CONTROL SETTINGS CUSTOMISATION enLighten Australia’s QLD Sales Executive, Tony Arhanic, assisted with a lighting audit & specification of the Chamaeleon light models, according to the specific lighting needs of the space A range of standard, permanently on & emergency Chamaeleon lights were specified with the ability to customise the reach & timer settings of the integrated microwave motion sensor within each light fitting.
Fig 2: The light output automatically adjusts to follow the occupant
In the undercover car park parking bays, the detection range was reduced from the standard 8m down to 2m, so that passing cars would not trigger the parking bay lights to switch to full light output. The timer settings were also increased from standard 15 seconds up to 2 minutes to allow car park visitors ample time to park, load or unload luggage and make their way to the carpark lift. In the service corridor areas, timer settings were also increased to 2 minutes as these areas were high use.
INDUSTRY OUTREACH Since installation was completed in early 2015, the level of interest in the project has been high. Stephen has hosted many colleague visits as well as the April meeting of the Queensland Chapter of the Institute of Hotel Engineers. The back of house lighting upgrade results will form part of the hotel’s Sustainability Award submission for the 2015 Queensland Tourism Awards, which will be awarded in November. Good luck to the Marriott team, we look forward to hearing the results.
Fig 3: Chamaeleon light in full light output (31-2W)
CUSTOMER FEEDBACK “We were able to upgrade our aging fluorescent lighting for over 80% energy savings and reduced maintenance within a competitive payback period. I’m particularly impressed with the Chamaeleon light’s plug in / plug out feature which allows for a simple same day swap over without having to isolate the power.” Stephen Coombs, Country Director of Engineering , Marriott Hotels For more information visit www.enlighten.com.au
Fig 4: Chamaeleon light in standby light output (7-8W)
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