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Permit Number: T22CM04005
Parcel: Unknown

Address:
4828 E 22ND ST

Review Status: Completed

Review Details: OTHER

Permit Number - T22CM04005
Review Name: OTHER
Review Status: Completed
Review Date Reviewer's Name Type of Review Description Status Comments
06/14/2022 ROBERT SHERRY MECHANICAL-COMMERCIAL REVIEW Reqs Change 1. Show that the proposed replacement rooftop units meet the requirements of Sections C403.3, C403.4, and C403.5 (e.g. provide the mechanical compliance certification from COMcheck). Reference: Section C501.4, International Energy Conservation Code 2018.
2. Provide heating and cooling load calculations to justify the heating/cooling capacities of the specified HVAC units. Reference: Section C403.1.1 and C502.2.3, IECC 2018.
3. Verify that the roof framing is adequate to support the proposed mechanical units on the roof (e.g. point load as well as dead load). Provide structural details as required for any special framing revisions needed to support the units and frame the roof penetrations. Reference: Section 302.1, IMC 2018.
06/14/2022 ROBERT SHERRY PLUMBING-COMMERCIAL REVIEW Reqs Change Provide a complete diagram of the natural gas distribution system. Include the developed length for the existing natural gas distribution system. Reference: Section 402.2, IFGC 2018.
06/22/2022 DAN SANTA CRUZ ELECTRICAL-COMMERCIAL REVIEW Reqs Change Please address the electrical plan review comments and provide a written response.

Ref; plan sheet E1.0, E 2.0.

1. Electrical feeder home run shown on E1.0 for AC units 1-thru-5 shows circuited as ACX 1,3, &5. What about ACX 14,16,18?

2. The electrical floor plan on E1.0 shows AC unit feeders for 1-thru-5 all tied together. This does not correlate with the Roof Schematic shown on E2.0. (a) The feeders for AC units 2,3, &5 are not shown? (b) The Roof Schematic feeder for AC units 2,3, &5 is not shown. Please clarify.

3. The Roof AC Schematic shows 2 -AC units as #3’s. Please correct this.

4. On the right side of the Roof Schematic are the square boxes with numbers representing feeders shown in the Roof Schematic. (a) Per Table 310.15(B) (16) 75Deg Column, #4 AL is rated at 65 amps. Please explain why the symbol #4 show #4 AL Derated at 82 amps. (b) What does the #5 symbol feeders represent?

5. The equipment ground conductors for the tapped conductors must be sized no smaller than the current carrying tapped conductors, NEC 250.122(G).

6. Provide complete total load calculations for the electrical service. The load calculations are not complete. What is TEP Peak Demand and in what article of the NEC allows that to be used for Electrical Service or Load Calculations?

7. The #4 AL feeders are undersized for the 90-amp OCPD’s. NEC 240.4.

8. Show feeder conduit, conductor sizes and types in the Riser Diagram that feeds new panel ‘ACX’.

9. The Riser Diagram shows panel ‘ACX’ AIC rating at 22K and 350-amp Main CB, the panel schedule shows the AIC at 10K and a 200-amp Main CB. Please clarify.
10. How are the new 400 amp disconnect feeder conductors terminating to the service entrance.

Ref; 2018 IBC sec 107.2.1, 2017 NEC, 2018 IECC, City of Tucson Commercial Plan Submittal Requirements.

Final Status

Task End Date Reviewer's Name Type of Review Description
06/23/2022 VVERA1 OUT TO CUSTOMER Completed