Electrical, Irrigation, & Mechanical

Applies to standalone commercial electrical permits only (not part of a full building permit submittal)

Electrical plan (combined PDF) including:

1. Site plan showing:
   • Location of electrical equipment (service equipment, meter/main, transformer, disconnects, etc.)
   • Building orientation, property boundaries, and equipment clearances/setbacks
   • Easement and flood plan information (if applicable)
   • Access/working clearances for electrical equipment (as applicable)
2. Floor plan showing:
   • New equipment and locations within the electrical scope of work
   • Existing electrical components affected by the scope (as applicable)
   • Working space dimensions/clearances for equipment (as applicable)
   • Circuiting for lighting and receptacle/power (as applicable)
   • Disconnect locations and overcurrent protection (OCPD) ratings (as applicable)
3. One-line (riser) diagram showing:
   • Service and distribution configuration (service equipment, panels/switchboards, feeders, etc.)
   • Point of interconnection/point of connection (POI/POC) and feeder routing (as applicable)
   • Feeder/conductor sizes, OCPD ratings, and grounding/bonding method
   • Available/required fault current information as applicable to the scope (see below)

4. Grounding and bonding details

5. Wiring methods/notes

6. Load calculations (existing and proposed, as applicable)

7. Panel schedules (existing and proposed, as applicable)

8. Available fault current (AIC) documentation (as available/applicable) including transformer secondary data if applicable

9. Fault current/coordination study (if required based on service/distribution equipment changes or available fault current)

10. Mechanical equipment electrical data/specs (RTUs, MAUs, exhaust, etc.) if included in scope

11. Equipment specifications/cut sheets (manufacturer/model must match plans/schedules)

Additional Information

• All plan sheets must be signed by a master electrician or sealed by an engineer
• Master electrician signature must include printed name, signature, and TDLR ME number
• If the scope does not include service/distribution equipment changes, drawings may be signed by a master electrician

Irrigation plan (combined PDF) including:

1. Site address

2. Licensed irrigator information (seal/signature and date as applicable)

3. Property boundaries and major site features (clearly identify irrigated areas)

4. North arrow, scale (drawn to scale) and legend

5. Zones identified and labeled

6. Zone flow measurement for each zone (as applicable)

7. Location and type of controller and sensor (if provided)

8. Identify the location, type, and size of each (as applicable)
   • Point of connection (POC), water source, and size of connection (meter location if applicable)
   • Backflow prevention device (location, type, and size if applicable)
   • Irrigation emission device(s)/head types (sprays/rotors/drip emitters)
   • Zone valves
   • Pressure regulation components (flow control valve, pressure regulator, or pressure compensating heads/emitters)
   • Main line and lateral piping
   • Design pressure
   • Isolation valve (between meter and RPZ/backflow device as applicable)
   • Master valve (when provided; indicate discharge side of RPZ/backflow device as applicable)

Applies to standalone commercial mechanical permits only (not part of a full building permit submittal)

Mechanical plan (combined PDF) including:

1. Equipment schedule (manufacturer/model, capacity, and locations)

2. Floor plan showing equipment locations and areas served

3. Duct layout and sizing (as applicable) and diffuser/grill locations

4. Ventilation/outside air method and calculations (as applicable)

5. Exhaust systems (kitchen/bath/dryer/other as applicable)

6. Thermostat/control sequence notes (as applicable)

7. Equipment cut sheets/specifications (manufacturer/model must match the equipment schedule)

Electrical plan (if applicable) identifying:

1. New/modified circuits, disconnect locations, and equipment MCA/MOCP (as applicable)

Load calculations (provide ONE of the following):

1. Heating and cooling load calculations (design loads) and equipment selection documentation, or

2. A copy of the original engineer-sealed mechanical design drawings and schedules from when the building was constructed may be accepted in lieu of load calculations only if no subsequent building modifications affecting loads have occurred
   • The equipment being replaced must be clearly identified on the plans

Original engineer-sealed mechanical plan (if using original design drawings in lieu of load calculations)

Mechanical equipment cut sheets/specifications (manufacturer/model must match what is shown on the plans)

Mechanical COMcheck

Electrical information (required when electrical modifications are involved)

1. Electrical plan or notes identifying new/modified circuits, disconnect locations, and equipment MCA/MOCP (as applicable)

2. Available fault current information where required by NEC (provide documentation if available fault current at the service equipment and/or affected equipment as applicable)

Manual J load calculation

Manual S equipment selection (must match the Manual J results)

Equipment information for the proposed system including:

1. Manufacturer and model number(s) (indoor unit, outdoor unit, air handler/furnace)

2. Capacity (tons/BTUs), efficiency ratings (SEER2/EER2, HSPF2.AFUE as applicable)

Applies to standalone commercial type I or II kitchen hood permits only (not part of a full building permit submittal)

Kitchen hood/exhaust plan (combined PDF) including:

1. Floor plan showing hood location(s) and kitchen layout:
   • Clearly label the hood as Type I or II
   • Show the appliance/equipment lineup served by each hood
2. Hood schedule and manufacturer cut sheets/specifications (manufacturer/model must match the schedule)
   • Hood dimensions and CFM
   • Filter type and listing/label information
3. Exhaust system layout including:
   • Exhaust duct routing, size, and termination/discharge location
   • Exhaust fan information (manufacturer/model, CFM, location, curb/installation details as applicable)
   • Required access/cleanouts (as applicable)
4. Makeup air information (if provided) including:
   • Makeup air unit schedule/cut sheets (as applicable)
   • Makeup air distribution locations and CFM
   • Provide total exhaust CFM and total makeup air CFM (as applicable)
5. Controls/interlocks (as applicable)
   • Hood, exhaust fan, and makeup air operation/interlock description
6. Type I (Grease)-Additional Requirements
   • Indicate a listed hood fire suppression system will be provided (include basic layout/coverage notes as applicable)
   • Identify any required interface/interlocks related to the suppression system (as applicable)
7. Tyle II (Heat/Steam/Odor)-Additional Requirements
   • Provide manufacturer documentation confirming Type II hood selection is appropriate for the proposed equipment/process (as applicable)
8. Electrical plan (if applicable) identifying:
   • New/modified circuits, disconnect locations, and equipment MCA/MOCP (as applicable)

Applies to standalone commercial walk in cooler/refrigeration permits only (not part of a full building permit submittal)

Walk in cooler/refrigeration mechanical plan (combined PDF) including:

1. Floor plan showing:
   • Location of the walk in box and equipment
   • Areas served (cooler vs. freezer) and clearances (as applicable)
2. Equipment schedule (manufacturer/model, capacity, and locations) for:
   • Walk in box/panels/doors (if new or replaced)
   • Condensing unit
   • Evaporator unit(s)
3. Refrigeration piping layout (as applicable)
   • Line sizes, routing, and penetration locations

4. Condensate disposal method (as applicable)

5. Ventilation/relief requirements (as applicable)
   • Identify any pressure relief vent/relief device if a freezer is provided (as applicable)

6. Equipment cut sheets/specifications (manufacturer/model must match the equipment schedule)

7. If roof mounted or exterior equipment is proposed:
   • Location of equipment, curb/stand details and any required screening notes (as applicable)

Electrical plan (if applicable) identifying:

1. New/modified circuits, disconnect locations, and equipment MCA/MOCP (as applicable)