xiv  EST3 Installation and Service Manual 
Underwriters Laboratories of 
Canada
 
7 Crouse Road 
Scarborough, ON 
Canada M1R 3A9 
 
Canadian Electrical Code Part 1 
ULC S527 Standard for Control Units for Fire Alarm 
Systems 
ULC S524 Standard for the Installation of Fire Alarm 
Systems 
ULC S536 Standard for the Inspection and Testing of 
Fire Alarm Systems 
ULC S537 Standard for the Verification of Fire Alarm 
Systems 
ULC ORD–C693–1994 Central Station Fire Protective 
Signaling System and Services  
CAN/ULC-S301 Standard for Central and Monitoring 
Station Burglar Alarm Systems 
CAN/ULC-S302 Standard for Installation and 
Classification of Burglar Alarm Systems for Financial 
and Commercial Premises, Safes, and Vaults 
CAN/ULC-S303 Standard for Local Burglar Alarm Units 
and Systems 
CAN/ULC-S304 Standard for Central and Monitoring 
Station Burglar Alarm Units 
 
PLUS: Requirements of state and local building codes and the 
local authority having jurisdiction.