CHAPTER 1
GENERAL INFORMATION

INTRODUCTION

The Pyro-Chem Kitchen Knight II Restaurant Fire Suppression System is of the pre-engineered type as defined by NFPA-17A Standard for Wet Chemical Extinguishing Systems and is designed to provide fire protection for restaurant cooking appliances, hoods, and ducts. Installation and maintenance of the system must conform to the limitations detailed in this manual and be performed by an Authorized Pyro-Chem Kitchen Knight II dealer.

The Pyro-Chem Kitchen Knight II System utilized a wet chemical agent specifically designed to suppress restaurant cooking area fire. The system provides automatic actuation and can be manually actuated through a remote mechanical pull station. Upon actuation, the system discharges a pre-determined amount of agent to the duct, plenum and cooking appliances. The agent acts to suppress fires in three ways:

1. The chemical chain reaction causing combustion is interrupted by both the agent itself and the resulting steam formation.

2. The agent cools the fire bringing it below auto-ignition temperature.

3. The agent reacts with hot grease forming a soap-like layer (saponification) that helps prevent the escape of combustible vapors, thus preventing re-ignition.

The shutdown of fuel and power to all appliances under protected ventilation equipment is required upon system actuation. The shutdown of make-up or supply air is recommended upon system actuation but is not required. Exhaust fan(s) in the ventilation system should remain on during system discharge as they assist the dispersion of chemical through the ventilating system. The system is UL Listed with or without exhaust fan shutdown.

The Kitchen Knight II and the Kitchen Knight Restaurant Fire Suppression System are compatible as long as separate installation guidelines are followed per each system design manual. Exception: The actuation limitations for the Kitchen Knight II system may be utilized for the Kitchen Knight system. Also, control heads, prior to Model No. 3 may be utilized on Kitchen Knight II systems, provided that the limitations used with those control heads are followed.

TEMPERATURE LIMITATIONS

The operating temperature range of the Pyro-Chem Kitchen Knight II System is 32 ⁰F.(0 ⁰C.) minimum to 120 ⁰F.(49 ⁰C.) maximum.

UL LISTING

The Pyro-Chem Kitchen Knight II Restaurant Fire Suppression System has been tested to the UL Standard for Fire Extinguishing  Systems For Protection of Restaurant Cooking Areas, UL300 and Listed by Underwriter's Laboratories, Inc.

ULC LISTING

The Pyro-Chem Kitchen Knight II Restaurant Fire Suppression System is listed by Underwriter's Laboratories of Canada (ULC). The ULC Listing No. is CEX812.

MEA APPROVAL

The Pyro-Chem Kitchen Knight II Restaurant Fire Suppression System has been approved for use by MEA (Material and Equipment Acceptance Division) for New York City. The MEA Certification No. is 91-99E Vol. II.

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