vault backup: 2025-11-05

lighting-controls-takeoff.md

@@ -21,6 +21,95 @@ title: Lighting Controls Takeoff
 > however, this phrasing is ambiguous and non-universal.
 > Confirm with [[pdi-estimating#Bid Estimating|bid team]] on what must be included.
 
+Determine which Systems and Codes are required:
+* _IBC/IECC 2021 or later:_ all fixtures 0-10V dimmable.
+
+## PDI Lighting Control Configurations
+
+### Stand Alone
+
+0-10V dim -- "LV cable" is 2 conductor
+
+Takeoff rough-in for switches and occupancy sensors
+* **Branch Length** = length of room
+
+Takeoff the lighting control relay (DLM)
+
+Takeoff an additional controller if receptacles are controlled
+
+Takeoff homeruns to the DLM (one per controlled circuit)
+* Note: Not necessarily per room, several rooms may share a lighting circuit.
+
+### Networked
+
+#### Devices
+
+##### 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 closeness to sw/occ sensor)
+??
+
+#### Homeruns
+
+Takeoff 1 circuit homerun per lighting zone.
+
+### Wattstopper
+
+PDI default configuration
+
+Takeoff (1) DLM controller for the fixtures
+and (1) Plug controller for the receptacle
+* If room has both dimmable fixtures and the controlled receptacle,
+  only (1) DLM controller and (1) Plug controller
+* Use MC to cover room if drop
+* Use EMT if exposed or MC not permitted
+
+Takeoff normal power to the controlled load
+* Add LV cable to fixture branch
+* Use 12/3 for receptacles
+
+Takeoff rough-in for both the occ sensors and the LV switch
+* Free air if possible
+* **Length** = length of room
+
+Cat cabling from the controllers on is likely provided by systems
+* Confirm with chief or quote language
+
+#### Corridor Occupancy Sensors
+
+If occupancy sensors are shown in the corridors:
+
+Takeoff homerun back to the electric room
+
+Takeoff (1) DLM controller for each electric room
+* Run free air down corridor
+
+Takeoff rough-in for each occupancy sensor shown.
+
+#### Network Bridge
+
+Check systems quote to determine if network bridges are needed.
+
+Takeoff (1) back box for every ==group of rooms you want together==
+
+??
+If not showing, put one in every room with a controller
+??
+
+#### Homeruns
+
+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
+
 ## Custom Switch Boxes
 
 For switch combinations not in `COMMON ASSEMBLIES`,