CSLB #976500 · State Fire Marshal #E2390 · Title 19 Certified
24/7 Emergency: (877) 256-0161A new Pyro-Chem Kitchen Knight II system for an industrial kitchen canopy over a cook-and-chill kettle: cylinder, control head, actuation line, interlocks, pull station and nozzles.
Client: An industrial food production kitchen · Industrial cook-and-chill kitchen
The challenge
An industrial cook-and-chill kitchen runs large kettles under a long exhaust canopy for hours at a time, with a heavy grease vapor load. The canopy, the duct plenum and the kettle needed a wet chemical system built to NFPA 17A and NFPA 96, with the fuel and power cut automatically if it fires and a manual release by the exit.
What we did
The PCL-300 cylinder was hung on a heavy-duty bracket on the wall beside the canopy, with the NMCH3 control head mounted above it and connected to the cylinder valve by a copper actuation line.
Microswitches in the control head were wired through EMT conduit to the electric gas shut-off valve and the main power contactors, so a release cuts fuel and power to the equipment under the canopy.
Conduit was run down the wall to a manual pull station mounted 48 inches above the floor beside the exit door.
Discharge piping and nozzles were set in the canopy to cover the cook-and-chill kettle and the duct plenum.
Every component was checked against Pyro-Chem's installation manual: cylinder gauge in the operating range, actuation line without kinks, switches wired, pull station connected.
Results
Automatic wet chemical coverage over the kettle, canopy and plenum.
Both cut by the system on release.
Installed and checked for the acceptance test.
Photos
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More of our work
Semi-annual test of a CaptiveAire two-tank system over a range, griddle, salamander and fryers: balloon air test on every nozzle, gas and power shut-off, and the alarms.
Wok-line grease had seized the detection line. We replaced the cable, pulleys, brackets and fusible links, then completed the semi-annual service and filed the report.
A semi-annual inspection found the Ansul R-102 piping packed with hardened grease. We cleared or replaced every blocked fitting, flushed the lines and capped every nozzle.
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