STANDARD	10 May 1999	15851

UPDATES -

10 May 99	-	Added Nailor items.

15 Apr 99	-	Changed deflection of low sidewall return grilles to 30 degrees.

SECTION 15851

DIFFUSERS, REGISTERS, AND GRILLES

PART 1 GENERAL

Edit Article '1.1' as necessary to give an accurate, but brief description of the work of this Section and accurate listing of related work, especially if the scope of the work is not shown graphically on the Drawings.

1.1	SUMMARY

A.	Includes But Not Limited To

1.	Furnish and install diffusers, registers, and grilles connected to ductwork as described in Contract Documents

2.	Quality of grilles installed in metal doors

B.	Products Supplied But Not Installed Under This Section

1.	Door grilles for wood doors

C.	Related Sections

1.	Division 06 - Installation of door grilles for wood doors	06201

2.	Division 08 - Furnishing and installing of grilles in metal doors	08112

3.	Section 15051 - General Mechanical Requirements	15051

1.2	MAINTENANCE

A.	Extra Materials - Leave tool for removing core of each different type of grille for building custodian.

PART 2 PRODUCTS

2.1	MANUFACTURED UNITS

Edit to specify only the items used on this Project. Also, edit the lists of approved manufacturers to include only those with whom you are familiar and whose products are available in the Project area. Do not add or approve any other manufacturers or systems without written approval of the Mechanical Group of Architectural & Engineering Services.

A.	Lay-in Ceiling Diffusers (Type A)

1.	Finish - Off-wite baked enamel.

2.	Removable inner cone assembly.

3.	Approved Manufacturers -	Approved Products

a.	Krueger

b.	Metalaire

c.	Price

d.	Titus - TDC

e.	Tuttle & Bailey

B.	Ceiling Supply Grilles (Type B)

1.	Finish - Off-white baked enamel

2.	3/4" blade spacing.

3.	Approved Manufacturers -

a.	Krueger

b.	Metalaire

c.	Price

d.	Titus - 301RS

e.	Tuttle & Bailey

C.	Ceiling Return And Transfer Grilles (Type C)

1.	Finish - Off-white baked enamel

2.	½" x ½" x ½" aluminum core.

3.	Approved Manufacturers -	Approved Products

a.	Krueger

b.	Metalaire

c.	Price

d.	Titus - 355RL or 355SL

e.	Tuttle & Bailey

D.	Hard Ceiling Diffusers (Type D)

1.	Finish - Off-white baked enamel

2.	Approved Manufacturers And Models -	Approved Products

a.	Krueger - SH

b.	Metalaire - 5500S

c.	Price - SMD

d.	Titus - TDC

e.	Tuttle & Bailey - MS

E.	Supply Grilles And Registers (Type E)

1.	Finish - Off-white baked enamel

2.	Removable core.

3.	Approved Manufacturers And Models -	Approved Products

a.	Krueger - 5815

b.	Metalaire - 42C

c.	Price - LBMR/DV1

d.	Titus - 1700

e.	Tuttle & Bailey - VF5

F.	Side Wall Return Grilles (Type F)

1.	Finish - Off-white baked enamel

2.	Approved Manufacturers And Models -	Approved Products

a.	Metalaire - 41C

b.	Krueger - 5810

c.	Price - LBMR

d.	Titus - 1700

e.	Tuttle & Bailey - VF

PART 3 EXECUTION

3.1	INSTALLATION	Installation

A.	Anchor securely into openings. Secure frames to ductwork by using four sheet metal screws, one per side. Level floor registers and anchor securely into floor.

3.2	ADJUSTING

A.	Set sidewall supply register blades at 15 degrees upward deflection.

END OF SECTION