Most open
office designs include a combination of open common
spaces for multiple user equipment such as copy machine,
fax machines and the like, low walled cubicles for
support staff and higher cubicles for more senior
employees. Open space, common equipment, and lower
level cubicles should be closer to the windows to
maximize the daylight zone.
In the above
sample office, the general lighting is made of direct /
indirect fluorescent fixtures with non dimming
electronic ballasts (similar to Advance Mark V) and T-8
color corrected lamps. The fixtures in the daylighting
zone are similar, except the have 0-10 VDC electronic
dimming ballasts (similar to Advance Mark VII.)
General on /
off controls for the fixtures will use a seven day time
clock with sweep functions and low voltage (24VDC) OI
stations that are located at the entrance to the space.
Several OI stations may be used and landed on the same
input terminals. Power to the system shall be 120V 60
HZ unless specified 277V 60 HZ on order.
The
daylighting zone will use an EDS sensor for continuous
dimming of the daylighting zone. The EDS can handle up
to 50 0-10VDC dimming ballasts. Power for the EDS is
supplied by the dimming ballasts themselves through the
purple and grey dimming control wires.
Operation
of OPEN OFFICE
The
following diagram graphically explains the operation of
an open office timeline with sweeps, OI stations and an
EDS controlled daylight dimming zone.
When
employees start to arrive, an OI pushbutton is pushed
and the system goes into auto mode. If the OI
pushbutton is not pushed, the system remains in standby
mode and the lights stay off.
Office
Lighting Schedule
