3.5 KiB
tags, title, up, aliases
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Lighting Controls Takeoff | takeoff-scripts |
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Lighting Controls Takeoff
[!info] See lighting-controls for more on lighting controls systems and lighting-controls-research for PDI considerations.
[!info] "Local Control" as a PDI proposal qualification The term "local control only" is sometimes used to indicate no consideration for any lighting control beyond standard devices, (with
$D's being the lighting-controls#Triac Dimming type) however, this phrasing is ambiguous and non-universal. Confirm with pdi-bid-estimating on what must be included.
Determine which Systems and Codes are required:
- IBC/IECC 2021 or later: all fixtures 0-10V dimmable.
[!info] Breakdowns
System= "LV - Lighting Control System"
Wall Switches
Tip
For switch combinations not in
COMMON ASSEMBLIES, create heating-designations based on the most similar.
Analog Controls
24V sensors. Typical of BOH spaces too large for wall sensors.
-
COMMON ASSEMBLIES/SWITCHES/CEILING OCC SENSOR ...Count: as shown. -
COMMON ASSEMBLIES/SWITCHES/POWER PACK FOR OCC SENSOR ...Count: each circuit controlled by analog sensors. Minimum 1 per sensor.
Digital Controls
Applicable to all digital control systems (i.e. "Standalone" and "Centralized", wired and wireless)
General
Takeoff normal power to the controlled load
- Add LV cable to fixture branch
- Use switched assemblies (#12/3) for controlled receptacles
Digital Sensors
COMMON ASSEMBLIES/SWITCHES/LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN/...... LV SW - WALL ROUGH IN ...... SENSOR LOW VOLTAGE - ROUGH IN ...
"Standalone" Systems
Room controllers distributed throughout controlled areas.
[!important] "Room controllers" As I have always understood it, and other manufacturers tend to agree, a room controller necessarily controls multiple zones (otherwise "zone controller" would be better), however PDI terminology is based on Wattstopper's.
COMMON ASSEMBLIES/SWITCHES/LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN/...
-
.../
DLM LTG RM CONTROLLER - ...- Count: each lighting control zone.
-
.../
REC PLUG CONTROLLER - ...- Count: each receptacle control zone.
-
HEATING/Network Bridge - Blank 4SQ- Count: each controller.
Coordinate with PDS to determine if necessary.
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COMMON ASSEMBLIES/PDI BRANCH CKT HOME RUNS/... (without dimming cable)- Count: each circuit.
"Centralized" Systems
Zones switched and dimmed from central lighting control panel (LCP).
COMMON ASSEMBLIES/PDI BRANCH CKT HOME RUNS/... (with dimming cable)- Count: each lighting control zone.
"Feed-Thru" Panels
COMMON ASSEMBLIES/DISTRIBUTION/LIGHTING CONTROL PANEL INSTALLATION/_ - LIGHTING CONTROL PANEL INSTALLATION & TROUGH - ...
Somewhere In Between
The dichotomy of #"Standalone" Systems vs. #"Centralized" Systems assumes zones will be controlled either (1) right next to the fixture or (2) in the nearest electrical room.
I think just as common is 3--5 circuit controllers above the ceiling.
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HEATING/Lighting Control Room Controller - n Circuit- Count: each controller.
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COMMON ASSEMBLIES/PDI BRANCH CKT HOME RUNS/... (without dimming cable)- Length: route to room.
- Count: each circuit.