Date: November 19, 1999
To: Technical Data Book Holders
From: R. S. Wilkins, Manager Technical Services
Subject: Distribution No. 1999-B

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

TABLE OF CONTENTS

Table of Contents (11-99). (Replaces Table of Contents presently in Technical Data Book.)

SECTION 1

• TD116 (9-99). 4 and 6 Inch Model F470, External Resetting, Vertical Deluge Valve. TD116 has been revised to update the Product Symbol Number for the Clapper Bolt. (Replaces the 5-96 issue of TD116 presently in the Technical Data Book.)
  
  
• TD116H (9-99). 4 and 6 Inch Model F470H Horizontal Deluge Valve. TD116H has been revised to update the Product Symbol Number for the Clapper Bolt and to indicate a new approval by the City of New York. (Replaces the 12-96 issue of TD116H presently in the Technical Data Book.)

SECTION 5

• TD503H (9-99). 8.0K, Model F917, Standard Response Solder Type, Intermediate Level Sprink-lers. TD503H describes new product. (Place the 9-99 issue of TD503H behind TD502M presently in the Technical Data Book.)
  
  
• TD509H (9-99). 8.0K, Model F916, Standard Response Solder Type, Conventional Sprinklers. TD509H describes new product. (Place the 9-99 issue of TD509H behind TD509.)
  
  
• TD510M (8-99). 5.6K, Issue D, Standard Response Bulb Type, Conventional Sprinklers Sprink-lers. TD510M has been revised to indicate availability of only 400F and 500F temperature ratings. (Replaces the 6-84 issue of TD510M presently in the Technical Data Book.)
  
  
• TD525M (8-99). 5.6K, Issue D, Standard Response Bulb Type, Pendent and Upright Sprinklers Sprinklers. TD525M has been revised to indicate availability of only 400F, 500F and 650F temperature ratings. (Replaces the 8-78 issue of TD525M presently in the Technical Data Book.)
  
  
• TD527H (9-99). 8.0K, Model F916, Standard Response Solder Type, Pendent and Upright Sprinklers. TD527H describes new product. (Place the 9-99 issue of TD527H behind TD526Q.)
  
  
• TD527Q (8-99). 8.0K, 3/4 Inch NPT, Issue D, Standard Response Bulb Type, Pendent and
  Upright Sprinklers Sprinklers. TD527Q has been revised to indicate availability of only 400F and 500F temperature ratings. (Replaces the 5-86 issue of TD527Q presently in the Technical Data Book.)
  
  
• TD529Q (8-99). 8.0K, 1/2 Inch NPT, Issue D, Standard Response Bulb Type, Pendent and Upright Sprinklers Sprinklers. TD529Q has been revised to indicate availability of only 400F and 500F temperature ratings. (Replaces the 8-78 issue of TD529Q presently in the Technical Data Book.)
  
  
• TD535 (8-99). 5.6K, Model FR-1/Q-46, Quick Response Solder Type, Horizontal Sidewall Sprinklers. TD535 has been revised to include new minimum horizontal spacing. (Replaces the
  9-92 issue of TD535 presently in the Technical Data Book.)
  
  
• TD536 (8-99). 5.6K, Model F950/Q-46, Standard Response Solder Type, Horizontal Sidewall Sprinklers. TD536 has been revised to include new minimum horizontal spacing. (Replaces the
  9-87 issue of TD536 presently in the Technical Data Book.)
  
  
• TD556 (8-99). 1/2 Inch Orifice, Model F960/Q-48 QR-EC Dry Horizontal Sidewall Sprinkler. TD556 describes new product. (Place the 8-99 issue of TD556 behind TD555 presently in the Technical Data Book.)
  
  
• TD578Q (8-99). 5.6K, Model F690, Quick Response Bulb Type, Concealed Pendent Sprinklers.
  TD578Q has been revised to indicate new approvals by the Loss Prevention Council (UK) and City of New York. (Replaces the 6-98 issue of TD578Q presently in the Technical Data Book.)
  
  
• TD579Q (8-99). 5.6K, Model F692, Standard Response Bulb Type, Concealed Pendent Sprink-lers. TD579Q has been revised to indicate new approvals by the Loss Prevention Council (UK) and City of New York. (Replaces the 6-98 issue of TD579Q presently in the Technical Data Book.)
  
  
• TD580 (9-99). Model A, Standard Response Bulb Type, Corroproof Wax Coated Sprinklers. TD580 describes new product. (Place the 9-99 issue of TD580 behind TD579Q).
  
  

PRODUCTS NO LONGER OFFERED FOR SALE

The following Technical Data Sheets are to be removed from your Technical Data Book.

• TD405. Model F752 Vertical Indicator Posts.
  
• TD406. Model F753 Wall Indicator Posts.
  
• TD504. Issue D Intermediate Level Sprinklers.
  
• TD578M. Model F975 Concealed Sprinklers.
  
• TD579. Model F976 Concealed Sprinklers.