Title: TFP171_11_2015.pdf
175 PSI (12,1 BAR)NOTES: 1. The maximum working pressure of 250 psi (17,2 bar) only applies to the Listing by Underwriters Laboratories Inc. (UL); the Listing by Under-writers Laboratories, Inc. for use in Canada (C-UL); and, the Approval by the City of New York.TABLE C MAXIMUM WORKING PRESSURECare and Maintenance The TYCO Series TY-FRB must be maintained and serviced in accordance with this section.Before closing a fire protection system main control valve for maintenance work on the fire protection system that it controls, obtain permission to shut down the affected fire protection systems from the proper authorities and notify all personnel who may be affected by this action.Absence of the outer piece of an escutcheon, which is used to cover a clearance hole, can delay sprinkler operation in a fire situation.Sprinklers which are found to be leaking or exhibiting visible signs of corrosion must be replaced.