Date: June 1, 2001
To: Technical Data Book Holders
From: R. S. Wilkins, Manager Technical Services
Subject: Distribution No. 2001-B

NOTE: Update mailing sent as three independent parts.

Enclosed are the following new and revised Technical Data Sheets to be placed in your Technical Data Book.

TABLE OF CONTENTS

DISCONTINUED PRODUCT

UPDATE AS FOLLOWS

• Part 1
  • Remove data sheets TD500A through TD533.
  • Insert the enclosed data sheets TD500A through TD533 dated 5-01.
    (Use the Table of Contents dated 5-01 as a guide.)
    
• Part 2
  • Remove data sheets TD534 through TD581M.
  • Insert the enclosed data sheets TD534 through TD581M dated 3-01.
    (Use the Table of Contents dated 5-01 as a guide.)
    
• Part 3
  • Remove data sheets TD583 through TD599.
  • Insert the enclosed data sheets TD583 through TD599 dated 3-01.
    (Use the Table of Contentsdated 5-01 as a guide.)
    

PLEASE NOTE THE FOLLOWING

• Sprinkler Identification Numbers (SIN) are typically located in the title of Figure A.
• New 10 year Limited Warranty.
• Technical Data Sheet TD585A describes the new Model TFP-1, 4.2 K-factor, Residential Flush Pendent Sprinkler.
• Technical Data Sheet TD580 (dated 9-99) is not being updated since the wax coating for Model A sprinklers is now described in the individual Model A sprinkler sheets distributed in Distribution
• Lead coating is now offered for standard coverage Model A quick and standard response sprinklers. Wax and wax over lead coatings are now offered for standard coverage Model A standard response sprinklers.

TECHNICAL DATA BOOK UPDATE MAILING
NO. 2001-B, PART 1, 2 and 3