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@@ -24,111 +24,91 @@ title: Lighting Controls Takeoff
Determine which Systems and Codes are required:
* _IBC/IECC 2021 or later:_ all fixtures 0-10V dimmable.
## PDI Lighting Control Configurations
* `System` = "LV - Lighting Control System"
> [!important]
> This section is currently not practical
## Wall Switches
### Stand Alone
> [!tip]
> For switch combinations not in `COMMON ASSEMBLIES`,
> create [[heating-designations]] based on the most similar.
0-10V dim --- "LV cable" is 2 conductor
## Analog Controls
Takeoff rough-in for switches and occupancy sensors
* **Branch Length** = length of room
24V sensors. Typical of BOH spaces too large for wall sensors.
Takeoff the lighting control relay (DLM)
1. `COMMON ASSEMBLIES`/`SWITCHES`/`CEILING OCC SENSOR ...`
**Count:** as shown.
Takeoff an additional controller if receptacles are controlled
2. `COMMON ASSEMBLIES`/`SWITCHES`/`POWER PACK FOR OCC SENSOR ...`
**Count:** each circuit controlled by analog sensors. Minimum 1 per sensor.
Takeoff homeruns to the DLM (one per controlled circuit)
* Note: Not necessarily per room, several rooms may share a lighting circuit.
## Digital Controls
### Networked
Applicable to all digital control systems
(i.e. "Standalone" and "Centralized", wired and wireless)
"LV Cable" is [[twisted-pair-cable]]
#### Room Controllers
No room controllers are necessary,
lighting zones are switched from a central lighting control panel (LCP)
#### Switches and Sensors
Takeoff rough-in for switches and occupancy sensors
??
(only if time based; length based on proximity to switch or occupancy sensor)
??
#### Homeruns
Takeoff 1 circuit homerun per lighting zone.
### Wattstopper
PDI default configuration
#### Room Controllers
For all rooms with dimmable fixtures
and/or automatically controlled receptacles,
take off (1) of either or both as appropriate.
`SWITCHES`/`LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN`/`DLM LTG RM CONTROLLER - ...`
`SWITCHES`/`LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN`/`REC PLUG CONTROLLER - ...`
### General
Takeoff normal power to the controlled load
* Add LV cable to fixture branch
* Use \#12/3 for controlled receptacles
* Use switched assemblies (\#12/3) for controlled receptacles
Takeoff rough-in for both the occ sensors and the LV switch
#### Digital Sensors
`SWITCHES`/`LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN`/`... LV SW - WALL ROUGH IN ...`
1. `COMMON ASSEMBLIES`/`SWITCHES`/`LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN`/...
* `... LV SW - WALL ROUGH IN ...`
* `... SENSOR LOW VOLTAGE - ROUGH IN ...`
`SWITCHES`/`LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN`/`... SENSOR LOW VOLTAGE - ROUGH IN ...`
### "Standalone" Systems
* Free air if possible
* **Length** = length of room
Room controllers distributed throughout controlled areas.
Cat cabling from the controllers on is likely provided by systems
* Confirm with chief or quote language
> [!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.
#### Corridor Occupancy Sensors
`COMMON ASSEMBLIES`/`SWITCHES`/`LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN`/...
If occupancy sensors are shown in the corridors:
1. .../`DLM LTG RM CONTROLLER - ...`
**Count:** each lighting control zone.
Takeoff homerun back to the electric room
2. .../`REC PLUG CONTROLLER - ...`
**Count:** each receptacle control zone.
Takeoff (1) DLM controller for each electric room
3. `HEATING`/`Network Bridge - Blank 4SQ`
**Count:** each controller.
`SWITCHES`/`LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN`/`DLM LTG RM CONTROLLER - ...`
Coordinate with PDS to determine if necessary.
??
Run free-air down corridor
??
4. `COMMON ASSEMBLIES`/`PDI BRANCH CKT HOME RUNS`/... (_without_ dimming cable)
**Count:** each _circuit_.
* **Length** = Length of corridor
### "Centralized" Systems
Takeoff rough-in for each occupancy sensor shown.
Zones switched and dimmed from central lighting control panel (LCP).
#### Network Bridge
1. `COMMON ASSEMBLIES`/`DISTRIBUTION`/`LIGHTING CONTROL PANEL INSTALLATION`/...
Check systems quote to determine if network bridges are needed.
2. `COMMON ASSEMBLIES`/`PDI BRANCH CKT HOME RUNS`/... (_with_ dimming cable)
**Count:** each _lighting control zone_.
Takeoff (1) back box for every ==group of rooms you want together==
%%
??
If not showing, put one in every room with a controller
??
### Somewhere In Between
#### Homeruns
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.
Need a HR into the room for the controllers
* Can link multiple controllers (aka rooms) together if you have the same circuit
* Go back to closest electric room
I think just as common is 3--5 circuit controllers above the ceiling.
## Custom Switch Boxes
1. `HEATING`/`Lighting Control Room Controller - n Circuit`
**Count:** each controller.
For switch combinations not in `COMMON ASSEMBLIES`,
create [[heating-designations]] based on the most similar.
2. `COMMON ASSEMBLIES`/`PDI BRANCH CKT HOME RUNS`/... (_without_ dimming cable)
**Length:** route to room.
**Count:** each circuit.
%%