zmVault/lighting-controls-takeoff.md

id, aliases, tags, title

id	aliases	tags	title
		authorship/original destiny/permanent occupational/takeoff/electrical status/draft type/guide	Lighting Controls Takeoff

Lighting Controls Takeoff

[!info] See lighting-controls for more on lighting controls systems.

[!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 triac type) however, this phrasing is ambiguous and non-universal. Confirm with pdi-estimating#Bid Estimating 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, create heating-designations based on the most similar.