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Summary of Contents for Haws 8785
- Page 1 1455 Kleppe Lane Sparks, NV 89431-6467 (775) 359-4712 Fax (775) 359-7424 Website: E-mail: haws@hawsco.com www.hawsco.com No. 0580001087(1) Model 8785 All-Weather Emergency Water Tempering Booth Area Classification - Ordinary ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 1 of 27...
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Page 2: Disclaimer
It is recommended that all water supply and electrical connections be made at temperatures above freezing (32ºF (0ºC)). Failure to do so may result in product and or property damage. For technical support, contact: Haws Services | (800) 766-5612 | www.hawsco.com/services ® HAWS P/N 0580001087 Rev.1 9/20... -
Page 3: Table Of Contents
DRAWINGS ..............................19 General Arrangement Drawings (0580001087.D-GA) ................. 19 Electrical Schematics (0580001087.D-EL, 0580001087.D-VFD EL) ........... 21 Piping and Instrumentation Diagrams (0580001087.D-PID, 0580001087.D-VFD PID) ..... 24 LIMITED WARRANTY ..........................27 ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 3 of 27... -
Page 4: Description Of Product
There are no electrical components in the blending system. Model 8785 is offered with and without a VFD controlled pump. The VFD controlled pump is ideal when supply pressure is low, or a recirculation loop is utilized to maintain water temperatures in the safety shower supply piping. -
Page 5: Shipping, Handling And Storage
Freeze protection equipment for the water supply leading up to the enclosure (if applicable). Storage The unit should be stored in a clean, dry place until ready for installation unless otherwise specified. ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 5 of 27... -
Page 6: Installation Procedure
Connect electrical supply to the Power Distribution Block. It is recommended that a Disconnect Switch (see Figure 1) is used to safely interrupt the supply for routine maintenance work. Disconnect switches are available as an option from Haws. NOTICE: All Power Connections must be made according to local codes and standards using components which are compliant with the area the unit is being installed in. - Page 7 NOTE: An emergency shower or eyewash (see Figure 3) should be utilized for testing of the blending system. Refer to the Maintenance, Testing, and Repair section of the TWBS.HF Blending System Manual document for proper adjustment and operation. ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 7 of 27...
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Page 8: Additional Instructions For Units With Vfd Controlled Pump
0HZ. If recirculation flowrate is not sufficient to maintain water temperature in piping at the desired temperature increase the frequency until the desired temperature is maintained. ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 8 of 27... - Page 9 30psi at that shower. The setpoint of the valve is 30psi + the shower elevation gain. 1FT = .433psi. ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 9 of 27...
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Page 10: Checklist For Start-Up
60°F minimum is standard. Back-Pressure Regulator Valve pressure setpoint is set to 30psi + Elevation gain of highest shower. ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 10 of 27... -
Page 11: Preventive Maintenance
PREVENTIVE MAINTENANCE Note: These are general instructions applicable to all Haws Model 8785 Tempered Water Booths. Additional maintenance activities may apply to particular configurations/options supplied. Weekly • Verify the tank temperature reads 165º F ± 2ºF (74ºC ± 1ºC) and 145°F ± 2ºF (63°C ± 1°C) for Canada (see Figure 5). -
Page 12: Monthly
ANSI Z358.1. This includes, but not limited to, proper installation, accessible locations, proper flow rate and temperature of flushing fluid. Please refer to the most current standards document for more information. ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 12 of 27... - Page 13 Maximum outlet temperature is approximately 85°F. Outlet temperature will be measured most accurately by the temperature gauge when water is flowing through the valve. Figure 6. Blending Valve ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 13 of 27...
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Page 14: System Drain And Check Procedure
This is a lockable ball valve, and Haws recommends locking this valve in the off position any time the system is to be drained. - Page 15 (Electrical disconnection and re-connection should be done by a qualified electrician) Contact Haws Services for questions at 1-800-766-5612. 11. Now is also a good time to open and clean out the Y-strainers (one in the inlet water line and one in in the hot water line).
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Page 16: Maintenance, Testing, Repair
Scald valve is designed to open before internal water temperature exceeds 100°F (37.8°C). Y-Strainers Y-strainers should be blown out at the same time as scheduled testing of showers or monthly. For technical support, contact: Haws Services | (800) 766-5612 | www.hawsco.com/services ® HAWS P/N 0580001087 Rev.1 9/20... -
Page 17: Troubleshooting
Reset by removing and reattaching module. If “NO RTC” is still present, a replacement part is required. If there are any questions that cannot be answered here, please consult: Haws Services | (800) 766-5612 | www.hawsco.com/services ® HAWS P/N 0580001087 Rev.1 9/20... -
Page 18: Spare Parts
SPARE PARTS Please call Haws Services to order spare parts: 1-800-766-5612 ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 18 of 27... -
Page 19: Drawings
DRAWINGS General Arrangement Drawings (0580001087.D-GA) ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 19 of 27... -
Page 21: Electrical Schematics (0580001087.D-El, 0580001087.D-Vfd El)
Electrical Schematics (0580001087.D-EL, 0580001087.D-VFD EL) ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 21 of 27... -
Page 24: Piping And Instrumentation Diagrams (0580001087.D-Pid, 0580001087.D-Vfd Pid)
Piping and Instrumentation Diagrams (0580001087.D-PID, 0580001087.D-VFD PID) ® HAWS P/N 0580001087 Rev.1 9/20 Model 8785 Page 24 of 27... -
Page 27: Limited Warranty
Company upon inspection to be of defective material or not of first class workmanship, provided that claim is made in writing to Haws within a reasonable period after receipt of the product. Where claims for defects are made, the defective part or parts shall be delivered to the Company, prepaid, for inspection.
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