substitution request - Alliance Construction Solutions

Fan-Powered Boxes – Structure-Hung
Floor-Mounted Fans
Fan Heads and Axial or Centrifugal Fans
(where air thrust exceeds 10% of equipment weight)
Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
Hanger Type D;
Connector Type K**
Mount Type B***;
Base Type G
0.75
1.50
Thrust Restraint Type X 1.50
Structure-Hung Fans Hanger Type D 0.75
Floor-Mounted Pumps
(Slab on Grade)
Floor-Mounted Pumps
Above/Below Occupied Spaces
Structure-Hung Pumps
Rooftop HVAC Units
Unit Heaters
* Omit if internal isolation is provided.
** Omit for FPB without hydronic coil.
*** Use type C mount for outdoor, wind-loaded installations.
3.05 EXAMINATION OF RELATED WORK:
Mount Type A;
Connector Type K
Base Type J; Spring Type B;
Connector Type K
Hanger Type D
Connector Type K
Mount Type Y;
Connector Type K
Hanger Type D1;
Connector Type K
A. Installer of vibration isolation work shall observe installation of other work related to
vibration isolation work, including work connected to vibration isolation work; and, after
completion of other related work (but before equipment start-up), shall furnish written
report to Engineer listing any observed inadequacies which could prevent proper operation
and performance of vibration isolation work. Report shall cover, but not necessarily be
limited to, the following:
0.75
1.50
0.75
0.75
1. Equipment installations (performed as work of other sections) on vibration
isolators.
2. Piping connections, including flexible connections.
3. Ductwork connections, including provisions for flexible connections.
4. Passage of piping and ductwork, which is to be isolated, through walls and floors.
B. Do not start up equipment until inadequacies have been corrected.
3.06 ADJUSTING AND CLEANING:
A. Clean each vibration control unit, and verify that each is working freely and that there is
no dirt or debris in immediate vicinity of unit that could possibly short- circuit unit isolation.
3.07 DEFLECTION MEASUREMENTS:
23 0548 - 11 VIBRATION AND SEISMIC
CONTROLS FOR HVAC PIPING
AND EQUIPMENT