25.12.2012 Views

substitution request - Alliance Construction Solutions

substitution request - Alliance Construction Solutions

substitution request - Alliance Construction Solutions

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

PART 3 – EXECUTION<br />

3.01 EXAMINATION:<br />

flashing in the field. If the curbs are to have sound attenuation qualities, they shall be not less<br />

than those catalogued for the equipment specified.<br />

A. Examine areas and conditions, with Installer present, for compliance with requirements for<br />

installation tolerances, housekeeping pads, and other conditions affecting performance of<br />

fans.<br />

B. Do not proceed until unsatisfactory conditions have been corrected.<br />

3.02 INSTALLATION, GENERAL:<br />

A. Install fans level and plumb, in accordance with manufacturer's written instructions. Support<br />

units using vibration control devices as indicated. Vibration control devices are specified in<br />

Division 23 Section "Vibration Controls."<br />

1. Secure roof -mounted fans to roof curbs with cadmium-plated hardware.<br />

Project No.: 10145<br />

550 15 th Street Dual Brand Hotel<br />

03/16/2012<br />

a. Installation of roof curbs is specified in Division 7.<br />

2. Suspended Units: Suspend units from structural steel support frame using threaded<br />

steel rods and vibration isolation springs.<br />

B. Arrange installation of units to provide access space around air-handling units for service and<br />

maintenance.<br />

3.03 CONNECTIONS:<br />

A. Duct installations and connections are specified in other Division 23 sections. Make final duct<br />

connections on inlet and outlet duct connections with flexible connections.<br />

B. Electrical Wiring: Install electrical devices furnished by manufacturer but not specified to be<br />

factory-mounted. Furnish copy of manufacturer's wiring diagram submittal to Electrical<br />

Installer.<br />

1. Verify that electrical wiring installation is in accordance with manufacturer's submittal<br />

and installation requirements of Division -26 sections. Ensure that rotation is in<br />

direction indicated and intended for proper performance. Do not proceed with<br />

centrifugal fan start-up until wiring installation is acceptable to centrifugal fan<br />

Installer.<br />

2. Temperature control wiring and interlock wiring are specified in Division 23.<br />

3. Grounding: Connect unit components to ground in accordance with the National<br />

Electrical Code.<br />

3.04 FIELD QUALITY CONTROL:<br />

23 3413 - 9 HVAC FANS

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!