111 lines
3.4 KiB
Markdown
111 lines
3.4 KiB
Markdown
---
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id:
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aliases: []
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tags:
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- occupational/takeoff
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- status/draft
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- type/guide
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title: Lighting Controls Takeoff
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dg-publish: true
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---
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# Lighting Controls Takeoff
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> [!info]
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> See [[lighting-controls]] for more on lighting controls systems
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> and [[lighting-controls-research]] for PDI considerations.
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> [!info] "Local Control" as a PDI proposal qualification
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> The term "local control only" is sometimes used to indicate
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> no consideration for _any_ lighting control beyond standard devices,
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> (with `$D`'s being the [[lighting-controls#Triac Dimming|triac]] type)
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> however, this phrasing is ambiguous and non-universal.
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> Confirm with [[pdi-estimating#Bid Estimating|bid team]] on what must be included.
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Determine which Systems and Codes are required:
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* _IBC/IECC 2021 or later:_ all fixtures 0-10V dimmable.
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* `System` = "LV - Lighting Control System"
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## Wall Switches
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> [!tip]
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> For switch combinations not in `COMMON ASSEMBLIES`,
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> create [[heating-designations]] based on the most similar.
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## Analog Controls
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24V sensors. Typical of BOH spaces too large for wall sensors.
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1. `COMMON ASSEMBLIES`/`SWITCHES`/`CEILING OCC SENSOR ...`
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**Count:** as shown.
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2. `COMMON ASSEMBLIES`/`SWITCHES`/`POWER PACK FOR OCC SENSOR ...`
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**Count:** each circuit controlled by analog sensors. Minimum 1 per sensor.
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## Digital Controls
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Applicable to all digital control systems
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(i.e. "Standalone" and "Centralized", wired and wireless)
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### General
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Takeoff normal power to the controlled load
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* Add LV cable to fixture branch
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* Use switched assemblies (\#12/3) for controlled receptacles
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#### Digital Sensors
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1. `COMMON ASSEMBLIES`/`SWITCHES`/`LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN`/...
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* `... LV SW - WALL ROUGH IN ...`
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* `... SENSOR LOW VOLTAGE - ROUGH IN ...`
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### "Standalone" Systems
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Room controllers distributed throughout controlled areas.
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> [!important] "Room controllers"
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> As I have always understood it, and other manufacturers tend to agree,
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> a room controller _necessarily_ controls multiple zones
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> (otherwise "zone controller" would be better),
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> however PDI terminology is based on Wattstopper's.
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`COMMON ASSEMBLIES`/`SWITCHES`/`LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN`/...
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1. .../`DLM LTG RM CONTROLLER - ...`
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**Count:** each lighting control zone.
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2. .../`REC PLUG CONTROLLER - ...`
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**Count:** each receptacle control zone.
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3. `HEATING`/`Network Bridge - Blank 4SQ`
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**Count:** each controller.
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Coordinate with PDS to determine if necessary.
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4. `COMMON ASSEMBLIES`/`PDI BRANCH CKT HOME RUNS`/... (_without_ dimming cable)
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**Count:** each _circuit_.
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### "Centralized" Systems
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Zones switched and dimmed from central lighting control panel (LCP).
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1. `COMMON ASSEMBLIES`/`DISTRIBUTION`/`LIGHTING CONTROL PANEL INSTALLATION`/...
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2. `COMMON ASSEMBLIES`/`PDI BRANCH CKT HOME RUNS`/... (_with_ dimming cable)
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**Count:** each _lighting control zone_.
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### Somewhere In Between
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The dichotomy of [[#"Standalone" Systems]] vs. [[#"Centralized" Systems]]
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assumes zones will be controlled either
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(1) right next to the fixture or (2) in the nearest electrical room.
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I think just as common is 3--5 circuit controllers above the ceiling.
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1. `HEATING`/`Lighting Control Room Controller - n Circuit`
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**Count:** each controller.
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2. `COMMON ASSEMBLIES`/`PDI BRANCH CKT HOME RUNS`/... (_without_ dimming cable)
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**Length:** route to room.
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**Count:** each circuit.
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