Laserfiche WebLink
Scott Schreffler <br />From: Scott Schreffler <br />Sent: Tuesday, August 6, 2024 10:23 AM <br />To: seattlepermits@jhkelly.com <br />Subject: RE: M2406-088 - Edward Jones tenant Mechanical permit application - 1st Review <br />Good morning, <br />I've reviewed your resubmittal and have the following comments: <br />1. The suspended water heater appears to have been excluded from the structural analysis, and exceeds the 200 <br />pound limit per the structural suspension detail. Please provide an alternate detail or update this detail for the <br />water heater. <br />2. It appears that multiple references to the wrong codes still exist in the drawings. Please revise references and <br />any calculations or design elements that have changed as a result. For instance, the energy code has changed <br />significantly. <br />3. Alterations of existing buildings require the implementation of these comments. Please reference WSEC <br />C501.2.2, C503.4 <br />4. Commissioning is required for alterations to existing buildings. See WSEC C501.6 and C408. Please indicate <br />these requirements on the drawings. <br />5. The water heater scheduled on sheet M4 does not contain the information required per C404.2. Water heaters <br />shall be air -source heat pump type per C404.2.1, or note the exception used. Please revise. <br />6. Revise ventilation calculations per 2021 energy code and 2021 Washington Mechanical Code, or provide an <br />explanation in your response letter. <br />7. Please confirm that the ventilation system design is or is not providing heat per WSEC C403.7.3. <br />8. Energy code mechanical requirements, sheet M10 <br />a. page 1 of 25 — Please identify the location of the calculations per C403.1.2. <br />b. page 2 of 25 — Drawings do not clearly indicate required information per C403.3.1, C403.3.2 and or <br />C403.9.1. Pleaser clearly indicate where this information is located on the drawings. <br />c. page 3 of 25 — DOAS is required in the 2021 Energy Code. Please clarify your response to C403.3.5, <br />C403.5.4, C403.3.5.1, C403.3.5.1, and revise the design accordingly. <br />d. page 9 of 25 — Please provide dampers per WSEC C403.7.8, C403.7.8.3. and C403.7.8.4. <br />9. Energy code mechanical requirements sheet M11 <br />a. Page 11 of 25 — It is unclear how setback controls are being specified on sheet M2 as noted. Please <br />clarify. See C403.4.2. <br />b. Page 11 of 25 — Please provide automatic start and stop, or explain why automatic start and stop are <br />"NA." See C403.4.2.3. <br />c. Page 12 of 25 — It appears DDC is required per C403.4.11.1. Please revise or note the exception used. <br />d. Page 12 of 25 - Economizers are required per C403.5. Please revise or note exception(s) used. <br />e. Page 13 of 25 - It is unclear how plenums and shafts are sealed. Please clarify. See C403.10.1. <br />f. Page 13 of 25 — It is unclear how duct pressure are being specified on sheet M2 as noted. Please <br />clarify. See C403.10.2. It is unclear if high pressure duct testing is required. Please clarify, note <br />exceptions as applicable. See C403.10.2.3. <br />g. Page 13 and Duct insulation schedule on M4 — Please revise R-values. Duct insulation requirements <br />have increased in the 2021 code. Please reference table C403.10.1.1. <br />h. Page 14 of 25 — see 9d above. <br />10. Energy code mechanical requirements Sheet M12 <br />a. Pages 24 and 25 — Commissioning is required. Please revise these pages indicating where <br />Commissioning requirements are called out on plans. <br />1 <br />