154 lines
3.9 KiB
Markdown
154 lines
3.9 KiB
Markdown
---
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id:
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aliases: []
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tags:
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- occupational/systems/units
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- type/guide
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---
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# Unit Takeoff
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## Info
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"Units" includes [[#hotel]] and [[#residential]] spaces.
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> [!info] Americans with Disabilities Act (ADA) Terms
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> * hearing impaired (HI or H.I.)
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> * hearing impaired communication (HC or H.C.)
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> * mobility features (MF or M.F.)
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> * accessible (Acc.)
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> * usually refers to mobility features.
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### Hotel
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> [!info] Also Known As
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> * Guestrooms
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> * Keys
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> [!trivia]
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> The term "key" as a synonym of "hotel room" is a synecdoche,
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> referring to the unit's door key.
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> In the pre-digital days of hotel management,
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> one could count the rooms of a hotel
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> by the keys behind the front desk.
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### Residential
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> [!info] Also Known As
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> * Condos - resident-owned
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> * Apartments - resident-rented
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## Sequence
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### 1. Estimate preparation
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1. Locate Unit panels and relevant keynotes
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* bus amps
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2. Read about the project specifications and construction type
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* partition framing (wood or metal studs)
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* stud depth
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* wiring methods (NM or MC)
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* wiring device plates (decora or standard)
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* wiring device specs (are 15A devices allowed or minimum N5-20R)
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* equipment (20A Kitchen and bath)
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1. Fill out OneNote
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### 2. Takeoff
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> [!tip] Preparing for Unit Takeoff
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> Units generally have very little variation.
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> It is usually best to copy-paste takeoffs
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> rather than re-build them for each unit.
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1. Kitchen and Bath
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2. General assemblies
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3. Low Voltage
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4. Lighting Fixtures
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5. Lighting Control
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> [!tip]
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> It may be more efficient and neat to not copy switches,
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> instead keeping the switch assembly list open
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> and creating them new for each unit,
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> since the types required can vary greatly between units.
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#### Load Centers
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| Rating | Assembly |
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| ------- | ---------------------------------------------------------------------------------- |
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| <= 100A | `DIST PANELS & UNIT LOAD CENTERS`/`UNIT LOAD CENTERS - ...`/`... UNIT LOAD CENTER` |
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| > 100A | `DIST PANELS & UNIT LOAD CENTERS`/`UNIT LOAD CENTERS - ...`/`... BREAKER PNL` |
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Include terminations per [[switchgear]].
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#### Shade Control
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#### Dedicated Circuit Receptacles
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For N5-15R/N5-20R receptacles serving fixed equipment such as:
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* refrigerators
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* gas ranges
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* microwaves
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* clothes washers
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* hood fans
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use single receptacle assemblies, even where shown as duplex.
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`COMMON ASSEMBLIES`/`UNITS - MC CABLE ASSEMBLIES`/`KITCHEN & BATH ASSEMBLIES - METAL STUD`/`SGL REC ...`
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#### Air Sealing
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* LEED Silver
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* Mid-Atlantic jobs
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* "Draft Proof Box"
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`ITEM DATABASE`/`BOXES & CABINETS`/`BOXES - VAPOR`/`...`
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`COMMON ASSEMBLIES`/`UNITS - MC CABLE ASSEMBLIES`/`GENERAL ASSEMBLIES - METAL STUD`/`UNIT MISC ITEMS - MC - ADJUST ACCORDINGLY`
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#### Islands
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Use 1 "SLAB / DECK" receptacle for every 2 circuits in the island.
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`COMMON ASSEMBLIES`/`UNITS - MC CABLE ASSEMBLIES`/`... RECEPTACLE TAMPER RESISTANT ...`/`... (METAL STUD) - 20' 3/4" PVC, ENT, 3#12 THHN`
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Use standard MC assemblies for remaining devices.
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#### Bidet Toilets, Whirlpool Baths, etc.
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`COMMON ASSEMBLIES`/`MECHANICAL CONNECTIONS (UP TO 100A)`/`PVC - LT NM FLEX (CARFLEX)`/`20A 1PH MECH CONN (100') 3/4" PVC 3#12 - CARFLEX`
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#### "High-Lows"
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`COMMON ASSEMBLIES`/`TELECOM SYSTEMS`/`UNIT DATA - TELECOM`/`HIGH-LOW - TV SCOOP 1 1/2" ENT - NO CABLE`
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Eaton 35M2W
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#### Telecom Homeruns
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Included in MSDE.
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#### Fire Alarm Devices
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##### Residential
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###### Smoke Detectors & CO Detectors
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For smoke detectors and CO detectors where 120V (most common):
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`COMMON ASSEMBLIES`/`UNITS - MC CABLE ASSEMBLIES`/`GENERAL ASSEMBLIES - METAL STUD`/`UNIT SMOKE DETECTOR W/ CO DETECTOR ...`
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For ADA units:
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`COMMON ASSEMBLIES`/`UNITS - MC CABLE ASSEMBLIES`/`GENERAL ASSEMBLIES - METAL STUD`/`UNIT SMOKE DETECTOR / VISUAL SIGNAL ...`
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###### Additional Signaling Devices
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==use free air devices==
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### 3. Extension (Review and Checking)
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1. Scroll through with Area selected and make sure there is takeoff for each unit type
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