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IMC CODE CHECKLIST 2009/2012 Cheat Sheet by

hvac

INTAKE, EXHAUST & RETURN LOCATIONS

GENERAL INTAKE
10' from property line
2009 IMC 401.4(1)
10' from center line of public way
2009 IMC 401.4(1)
10' from Xcel transf­ormer
Xcel Blue book.
10' from building enviro­nmental exhaust
2009 IMC 501.2.1(3)
10' from plumbing vents or 3' below if <10'
2009 IMC 401.4(3)
GENERAL EXHAUST
3' from property lines, openigs into buildings
2009 IMC 501.2.1(3)
10' from mechanical air inlets
2009 IMC 501.2.1(3)
Type I Commercial Hood Exhaust
See figure 506.3.10, 10.1(1) and 10.1(2) for summary
Type II Commercial Hood
2009 IMC 506.4.2 & 501.2.1(3) Enviro­nmental Air.

Return Air Prohibited Sources

Machinery eqmt rm
2009 IMC 918.6(3)
Kitchen
2009 IMC 918.6(5)
Exception: > than 10' from cooking appl.
Exception 2009 IMC 918.6(5)
Closet, bathroom, garage, boiler­/fu­rnace room, uncond­itioned attic/­cra­wlspace
2009 IMC 918.6(5)
 

Through Penetr­ations of Rated Assemblies

Not required - If not required then must comply with IBC 713.2 through 713.3.3
Required Ratings of Fire Dampers
See 2009 IBC Table 716.3.2.1
Fire Walls fire damper required
2009 IBC 716.5.1
Smoke damper required only serves horizontal exit
2009 IBC 716.5.1.1
Fire Barriers
2009 IBC 716.5.2
Fire Damper Required
Exception - Not required if all below apply:
building sprink­lered, wall rating <1hr, Not grp H, 26ga duct, ducted sa,ra
Smoke damper required only if fire wall serves horizontal exit
2009 IBC 716.5.2.1
Shaft Enclos­ures
2009 IBC 716.5.3
Fire/Smoke Damper required at all penetr­ations
2009 IBC 716.5.3
Fire Partit­ions
Fire Damper Required
2009 IBC 716.5.4
Exception - Not required if all below apply:
Bldg fully sprink­ered, fire caulked per 713
Corrid­ors
Smoke damper required.
2009 IBC 716.5.4.1
Exception - Not required if all below apply:
No openings in corridor, duct >.019
 

Locate Equipment - Equip on roof.

Show Working Space around all HVAC equipment, panels and etc on plans with hatched area.
2009 IMC 306.1 & Manuf. Instal­lation instru­ctions.
Permanent ladder required if roof over 16'.
2009 IMC 306.5
Level walking surface if roof pitch is over 4/12.
2009 IMC 306.5
Guard rails req'd if equip < 10' from edge of roof or 30" drop in elevation. Note this applies to RTU, Fans, roof hatches. Extend 42" high guard, 30" past equipment. Prevent 21" dia sphere.
2009 IMC 304.11
Mainte­nance recptacle, GFI, Same roof level and within 25' of equipment.
2009 IMC 306.5.2 in accordance with 2011 NEC 210.8(­B)(3) & 210.63
Mainte­nance platforms req'd if slope of roof is >3/12. If platform is over 30" above roof, a guard rail is required.
2009 IMC 306.5.1

Locate Equipment - Indoor Equip.

Atmosp­heric vented appliance shall not be in:bed­room, bathroom, toilet room, storage (except sealed combus­tion)
2009 IMC 303.3
Appliance in Public garages suspended from the ceiling where vehicles can pass under shall be min 8' or 1' higher than the vehicle entry door, which ever is greater.
2009 IMC 304.6
Appliance in Private garages suspended from the ceiling where vehicles can pass under shall be min 6' or 1' higher than the vehicle entry door, which ever is greater.
2009 IMC 304.7
Room Access Doors - 36" wide X 80" tall.
2009 IMC 306.2

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