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Related Manuals for ENCON SAF-T-FLO STF30 Series
Summary of Contents for ENCON SAF-T-FLO STF30 Series
- Page 1 SAFETY PRODUCTS ® SAF-T-FLO ® EMERGENCY SHOWER & EYEWASH WATER TEMPERING SYSTEM INSTALLATION, OPERATION AND MAINTENANCE MANUAL MODEL: STF30 & STF60 SERIES 09900003A Rev. F Copyright Encon Safety Products 2004 ® June 10, 2004 Printing Patent # 6,270,014 B1...
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Page 2: Operational Specifications
PATENT# 6,270,014 B1 PRODUCTION DESCRIPTION The SAF-T-FLO is a water tempering system designed to deliver tepid (Encon’s desired output temp is ® 78F - 93F [25.5C - 33.8C ]) water to emergency eyewash and shower equipment (ESEW) when supplied with adequate amounts of hot and cold water (see OPERATIONAL SPECIFICATIONS below for requirements). -
Page 3: Operation
OPERATION During static (non-flowing) conditions, an independent LED will indicate the following: POWER ON indicator will be lit and the BLENDING and FLOW lights will be off. For optimum performance the hot water inlet temperature should be between 90 and 160°F (32.2 and 71.1C) and the cold water inlet temperature should be between 33... -
Page 4: Testing And Inspection
CAUTION CAUTION CAUTION TO AVOID ELECTRICAL SHOCK, DISCONNECT POWER BEFORE PROCEEDING! DE- ENERGIZE AT CIRCUIT BREAKER. CARE MUST BE TAKEN WHEN OPENING JUNCTION BOX COVER TO PROTECT THE INDICATING LIGHT WIRING INSIDE THE BOX. GROUNDING LUG HAS BEEN PROVIDED TO BASE PLATE OF JUNCTION BOX. CUSTOMER TO PROVIDE ADEQUATE GROUND AT MAIN POWER SUPPLY FEED. -
Page 5: Maintenance
IV. MAINTENANCE Maintenance is typically limited to testing the emergency shower equipment down stream of the Saf-T-Flo. However, should problems occur on the Saf-T-Flo, the use of Section V - TROUBLESHOOTING can help isolate those components requiring repair or replacement. An adjustable locking wrench applied to unions is the recommended hand tool for repairs and maintenance, unless noted otherwise. -
Page 6: Replacement Parts
b) 1-FLS will show electrical continuity or a closed circuit under no flow (N.C.) conditions. Should the test show otherwise, operate the switch through a cycle (lift and drop shuttle, test electrical continuity readings). c) If the circuit remains closed throughout the cycling of the drop shuttle, clean all particulate from the shuttle assembly and magnet. - Page 7 CAUTION CAUTION CAUTION WEAR PROTECTIVE EQUIPMENT DURING HOT WATER TEST. b) Element Test Cold Port Open - Immerse the sensing element in hot water (105F /40.6C) to 110F/43.3C maximum) observing the valve plug travel. The cold water flow port should open and the hot water flow port should close.
- Page 8 CAUTION CAUTION CAUTION PRIOR TO ATTEMPTING MAINTENANCE: TO AVOID ELECTRICAL SHOCK, DE-ENERGIZE SAF-T-FLO AT MAIN ELECTRICAL POWER SUPPLY DRAIN ALL WATER LINES. CARE MUST BE TAKEN WHEN OPENING JUNCTION BOX COVER TO PROTECT THE INDICATING LIGHT WIRING INSIDE THE BOX. USE OF PIPE TAPE IS NOT RECOMMENDED, USE PIPE SEALANT SPARINGLY.
- Page 9 CAUTION CAUTION CAUTION PRIOR TO ATTEMPTING MAINTENANCE: TO AVOID ELECTRICAL SHOCK, DE-ENERGIZE SAF-T-FLO AT MAIN ELECTRICAL POWER SUPPLY DRAIN ALL WATER LINES. CARE MUST BE TAKEN WHEN OPENING JUNCTION BOX COVER TO PROTECT THE INDICATING LIGHT WIRING INSIDE THE BOX. USE PIPE SEALANT SPARINGLY.
- Page 10 1-SOL Instructions for Inspection, Cleaning and/or Replacing Parts: NOTE: For Electrical Schematic, refer to Diagram 4 in Section VII. a) Verify 1-SOL solenoid is functioning. CAUTION CAUTION CAUTION PRIOR TO ATTEMPTING MAINTENANCE: TO AVOID ELECTRICAL SHOCK, DE-ENERGIZE SAF-T-FLO AT MAIN ELECTRICAL POWER SUPPLY.
- Page 11 3) Remove the nut and washer from the solenoid. This will allow you to separate the solenoid switch from the solenoid valve body. 4) Remove solenoid switch and leads from the electrical conduit assembly by turning the solenoid counterclockwise, clearing the conduit assembly. 5) Inspect solenoid for cracks in the housing.
- Page 12 d) 1-SOL re-assembly instructions: 1) Valve body: 1.1) Parts must be replaced in the order and orientation shown in the exploded view Diagram 5 in Section VII. 1.2) To assemble the diaphragm assembly, torque the lock nut with input torque of 45-55 in-lbs.
- Page 13 4. 2-SOL Instructions for Inspection, Cleaning and/or Replacing Parts: a) Verify 2-SOL solenoid is functioning: With both cold and hot water supplied to the Saf-T-Flo, place a hand on 2-SOL valve. Have someone open the closest shower station. Solenoid assembly is functioning if internal operational movement is detected by hand when flow through the Saf-T-Flo...
- Page 14 2) Clean parts using appropriate cleaning fluid (mild soap and water). CAUTION CAUTION CAUTION DO NOT EXPOSE PLASTIC OR ELASTROMERIC MATERIALS TO ANY TYPE OF COMMERCIAL CLEANING FLUID. PARTS SHOULD BE CLEANED WITH A MILD SOAP AND WATER SOLUTION. 3) Examine the components for damage or wear and replace as needed. Check seals for swelling, cracking or general deterioration.
- Page 15 2) Solenoid: 2.1) With the solenoid repositioned on the sleeve, slide washer over sleeve, replace nut, and tighten nut with an input torque of 43-53 in-lbs. NOTE: Never apply electricity to a solenoid valve without ensuring that the solenoid is properly installed on the valve sleeve. The resulting high in- rush of current can result in an electrical short in the solenoid.
- Page 16 F. IN-LINE CHECK VALVE – 1-CV Check valve 1-CV is designed to be virtually maintenance free. If a problem should arise, do not remove valve while the line is under pressure. Drain all water lines prior to attempting maintenance. Debris or particulate should be rinsed or washed away. CAUTION CAUTION CAUTION PRIOR TO ATTEMPTING MAINTENANCE: TO AVOID ELECTRICAL SHOCK, DE-ENERGIZE SAF-T-FLO...
- Page 17 2. Thermostat – 2-TAS: CAUTION CAUTION CAUTION PRIOR TO ATTEMPTING MAINTENANCE: TO AVOID ELECTRICAL SHOCK, DE-ENERGIZE SAF-T-FLO AT MAIN ELECTRICAL POWER SUPPLY AND DRAIN ALL WATER LINES. CARE MUST BE TAKEN WHEN OPENING JUNCTION BOX COVER TO PROTECT THE INDICATING LIGHT WIRING INSIDE THE BOX. USE PIPE SEALANT SPARINGLY.
- Page 18 V. TROUBLESHOOTING SYMPTOM PROBLEM SOLUTION No flow Hot or Cold water supply valve is shut Open water supply valves. off. Delivered water under 1) Hot water supply valve is shut off or 1) Open hot water supply valve. temperature. supply is not hot 2) Replace 1-TAS according to Section IV-C 2) System thermostat (1-TAS) failed.
- Page 19 VI. REPLACEMENT PARTS STF30 SERIES STF60 SERIES Nomenclature ISA Symbol 120 V 240 V 120 V Thermostat, 92 deg.F/33.3 deg.C 1-TAS 00014640 00014640 00014640 Flow Switch Bonnet 1-FLS 00014683 00014683 00014775 Solenoid w/Leads, (N.O.) 1-SOL 00010939 00010940 00010941 Solenoid w/Leads, (N.O.) 1-SOL STAINLESS STEEL MODELS ONLY Solenoid w/Leads, (N.C.)
- Page 20 VII. DIAGRAMS Doc. No.: 09900003A Rev. F Page 19 of 26 Issue Date: 07-19-11...
- Page 21 Patent #6,270,014 B1 Description 1-CV Check Valve 1-TCV Blending Valve 1-SOL Solenoid Valve (bypass) 2-SOL Solenoid Valve (blended supply) 1-TI Temperature Indicator 1-FLS Flow Switch 1-TAS Temperature Switch Doc. No.: 09900003A Rev. F Page 20 of 26 Issue Date: 07-19-11...
- Page 22 SAF-T-FLO EMERGENCY SH O WER WATER TEMP ERING SYSTEM DIAGRAM 2 STF30 SERIES SHOWN Patent #6,270,014 B1 Doc. No.: 09900003A Rev. F Page 21 of 26 Issue Date: 07-19-11...
- Page 23 DIAGRAM 3 STF60 SERIES SHOWN Patent #6,270,014 B1 Doc. No.: 09900003A Rev. F Page 22 of 26 Issue Date: 07-19-11...
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Page 24: Electrical Schematic
DIAGRAM 4 ELECTRICAL SCHEMATIC Patent #6,270,014 B1 Doc. No.: 09900003A Rev. F Page 23 of 26 Issue Date: 07-19-11... - Page 25 DIAGRAM 5 1-SOL SOLENOID VALVE COMPONENT PARTS Doc. No.: 09900003A Rev. F Page 24 of 26 Issue Date: 07-19-11...
- Page 26 DIAGRAM 6 2-SOL SOLENOID VALVE COMPONENT PARTS Doc. No.: 09900003A Rev. F Page 25 of 26 Issue Date: 07-19-11...
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Page 27: Warranty Statement
INFRINGEMENT OF THIRD-PARTY RIGHTS, EXCEPT AS HEREINAFTER PROVIDED. Encon Safety Products warrants that for one year from the date of purchase of any Encon products, the product will be free of defects in materials and workmanship if properly used and cared for or cleaned under normal conditions in accordance with Encon’s use and care instructions and properly installed, if applicable, in accordance...