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4.1 Hardware Checkout after Installation The following checkout procedure applies to the Unique Fire furnished HFC-227ea hardware only. Automatic detection, releasing control panel, the associated devices (alarms, pull stations, etc.) along with their associated control functions are required to be checked in accordance to this manual and the NFPA 2001 (latest edition). NOTE: All detection […]

The design section provides an understanding of the characteristics of HFC-227ea in relation to its flow from its storage container, through the piping network, and discharge from the distribution nozzles. Information is also given for the “Authorities Having Jurisdiction” for approving the system installation. Systems shall be installed and maintained in accordance to the NFPA […]

2.8.1 Control Switches 2.8.1.1 Manual Control – Electrical Pull Station and Manual Release Station The cylinder valve can be electrically actuated by means of a Manual Control – Electrical Pull Station and Manual Release Station wired to the U.L. Listed Control Panel for releasing device service. The releasing panel must be compatible with Unique Fire […]

2.6.4 Latching Solenoid with Local Manual Control 2.6.4.1 Latching Solenoid Latching Solenoid w/ supervision (Part Number: UFI 50026-A) is used to open a Schrader valve on the top plug adaptor of the cylinder valve. The application provides a solution with a fast response and a high latching force to be used with the Unique Fire […]

Introduction The Unique Fire Engineered HFC-227ea Systems, as outlined in this manual, are those that are intended to be designed and installed to protect single or multiple hazards within the limitations tested by a recognized testing agency as stated in this manual ONLY. Authorities Having Jurisdiction (AHJ) should follow the information specified by the Standard […]

HAZARDS IDENTIFICATION EMERGENCY OVERVIEW : Misuse or intentional inhalation abuse can cause suffocation or death. Direct eye or skin contact with the liquid or cold gas can cause chilling or possibly frostbite on exposed tissues. ACUTE HEALTH EFFECTS EYE CONTACT : Direct eye contact may induce the symptoms for frostbite or cold burns. SKIN CONTACT […]

1.1        Chemical & Physical Properties Table 1-2: Chemical and Physical Properties of UNIQUE 227®   Properties UNIQUE 227® TRADE NAME ASHRAE DESIGNATION HFC-227ea SYNONYM HFC-227; R-227; Heptafluoropropane; 2-Hydroperfluoropropane; 2-Hydroheptafluoropropane; 2-H-Heptafluoropropane; 1,1,1,2,3,3,3-Heptafluoropropane; Propane,1,1,1,2,3,3,3-Heptafluoro- MOLECULAR FORMULA CF3CHFCF3 CAS REGISTRY NUMBER 431-89-0 FORM/ODOR Colorless, odorless, liquefied compressed gas MOLECULAR WEIGHT 170.03 BOILING POINT -16.4°C / 2.48°F MELTING POINT […]

UNIQUE227 is the brand name for Heptafluoropropane (HFC-227ea) manufactured by Unique Fire Industry Sdn. Bhd. Unique Fire Industry Sdn. Bhd. provides the highest quality assurance of its HFC- 227ea and is supported by a team of highly trained and qualified Chemical Engineers and Scientists. The HFC-227ea is the leading Clean Agent replacement for Halon 1301 […]