Related Manuals for Hoffman JEL-10
Summary of Contents for Hoffman JEL-10
- Page 1 TECHNICAL MANUAL ELECTRIC STEAM GENERATORS & BOILERS MODELS: JEL-10 THRU JEL-12 | RHPG-15 THRU RHPG-36 www.buyhoffmansteamersnow.com 2023 UnityLab Corp. All rights reserved. ©/TM...
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Page 2: Table Of Contents
ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL Contents 1.0 INTRODUCTION ..................2 1.1 INTENDED USE ..........................2 1.2 REGISTRATION WITH LOCAL JURISDICTION ..............2 1.3 PRELIMINARY DELIVERY INSPECTION .................3 1.4 WARRANTY ACTIVATION .....................3 1.5 SAFETY AND PRECAUTIONS ....................3 1.5.1 SAFETY NOMENCLATURE ....................3 1.5.2 SAFETY FEATURES ......................3 1.5.3 SAFETY SUMMARY ...................... -
Page 3: Introduction
For a listing of pressures and corresponding temperatures see Chapter 6, Table 6.1.1. Hoffman also offers a wide variety of options for the steam generators and boilers. For a listing of the options available, please contact your Hoffman Distributor. -
Page 4: Preliminary Delivery Inspection
ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL 1.3 PRELIMINARY DELIVERY INSPECTION INSPECT BOX/CRATE AND STEAM GENERATOR OR BOILER FOR SHIPPING DAMAGE AND SHORTAGE. ANY DAMAGE OR SHORTAGE IN SHIPMENT SHOULD BE NOTED ON THE FREIGHT BILL BEFORE IT IS SIGNED. CALL THE CARRIER IMMEDIATELY TO REPORT ALL DAMAGE OR SHORTAGE AND ARRANGE TO FILE A CLAIM. -
Page 5: Safety Summary
OSHA’S LOCKOUT/TAGOUT STANDARD (29 CFR 1910.147) REQUIRES THAT ALL ENERGY SOURCES BE TURNED OFF AND “LOCKED OUT” WHILE MACHINES ARE BEING SERVICED OR MAINTAINED. WARNING WHEN SERVICING THIS MACHINE, USE ONLY APPROVED HOFFMAN REPLACEMENT PARTS. 2023 UnityLab Corp. All rights reserved. | 4 ©/TM... -
Page 6: Installation
WARNING ALWAYS PROPERLY GROUND THE UNIT BEFORE OPERATING. ONLY A LICENSED ELECTRICIAN SHOULD SERVICE OR INSTALL A HOFFMAN STEAM GENERATOR. 7. Installation in an enclosed space shall require the following clearance around the steam generator: Each Side and Front/Rear Clearance….2 FT –... -
Page 7: Operating Instructions
3.0 OPERATING INSTRUCTIONS Open the gauge glass valves on the top and bottom of the gauge glass assembly (on units supplied). 2. Check the drain valve to be certain that it is closed. 3. Filling the boiler: A. For Manual Water Feed Models: Open the water fill valve on the side of the boiler. -
Page 8: Maintenance
The Hoffman Electric Steam Generator/Boiler is easy to clean and easy to maintain. It is strongly suggested that the following steps be followed to ensure a long and trouble- free life for the boiler. -
Page 9: Blowing Down The Boiler
4. Open the petcock at the bottom of sight glass (if so equipped). 5. Remove the sight glass and clean with a bottle washer. Use a plastic bristle brush. A metal wire brush could scratch the glass and is not recommended. 6. -
Page 10: Troubleshooting & Servicing
ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL 5.0 TROUBLESHOOTING & SERVICING 5.1 TROUBLESHOOTING TABLE PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION Check incoming power Lack of power Check fuses Check On/Off switch is in “ON” position Unit does not Lack of water Fill unit heat up Bad Heating... -
Page 11: Adjusting The Steam Pressure
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION Breather valve See Section 3.0 – Operation not open Lightly tap valve Clean valve seat. Disconnect power and Check Valve is remove pressure from the boiler. Check no Can not fill stuck pressure by leaving the breather open with water Replace valve Water Inlet... -
Page 12: Replacing The Pressure Controller
(To be performed by a licensed electrician) The heating element is an immersion type, flange mounted, designed particularly for the Hoffman boiler. An element can be wired either single phase or three phase. However, machine electrical modifications would be necessary... -
Page 13: Replacing The Electric Foot Switch And/Or Cord
5.6 REPLACING THE ELECTRIC FOOT SWITCH AND/OR CORD (To be performed by a licensed electrician) For Models: JEL-10, JEL-11, JEL-12 Turn off the power to the boiler by pulling the plug or turning off the power at the branch switch or the circuit breaker. -
Page 14: Replacing The On/Off Switch
ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL 5. Disconnect the cord wires from the foot switch. 6. Check continuity through the switch while holding the switch lever down. If the switch passes the test, skip to number 10. 7. If the switch fails the continuity test, loosen two screws on the bottom side of the switch housing and remove the switch from the cord. -
Page 15: Cleaning The Electric Solenoid Valve
5.8 CLEANING THE ELECTRIC SOLENOID VALVE (To be performed by a licensed plumber) For Models: JEL-10, JEL-11, JEL-12 Turn off the power to the boiler by pulling the plug or turning off power at the branch switch or at the circuit breaker. -
Page 16: Tables
ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL 6.0 TABLES 6.1 PRESSURE VS. TEMPERATURE The following table shows the relationship between steam pressure in pounds per square inch (psig), and temperature in degrees Fahrenheit (ºF). This table can be useful in determining the steam temperature at a corresponding pressure. -
Page 17: Electrical Specifications
6.2 ELECTRICAL SPECIFICATIONS The following table lists voltage and amperage requirements of various models of Steam Generators. Table 6.2.1 MODEL VOLTAGE PHASE AMPS NUMBER 17/27 JEL-10 18/30 19/31 24/40 JEL-11 26/43 27/46 31/52 JEL-12 12.0 34/57 36/60 17/27 RHPG-15 18/30... -
Page 18: Drawings & Parts List
ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL 7.0 DRAWINGS & PARTS LIST Figure 7.1 - Assembly for Models: JEL-10, JEL-11, JEL-12, RHPG-15, RHPG-16, RHPG-17 Figure 7.2 - 52773 (rev B) Wiring Schematic RHPG/ JEL 6, 9, & 12 KW 3 Phase Figure 7.3 - 52774 (rev A) Wiring Schematic RHPG/ JEL 6, 9, &... - Page 19 Figure 7.1 – Assembly for Models: JEL-10, JEL-11, JEL-12, RHPG-15, RHPG-16, RHPG-17 2023 UnityLab Corp. All rights reserved. | 18 ©/TM...
- Page 20 ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL Figure 7.2 – 52773 (rev B) Wiring Schematic RHPG/ JEL 6, 9, & 12 KW 3 Phase...
- Page 21 Figure 7.3 – 52774 (rev A) Wiring Schematic RHPG/ JEL 6, 9, & 12 KW 1 Phase 2023 UnityLab Corp. All rights reserved. | 20 ©/TM...
- Page 22 ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL Figure 7.4 – 75384 (rev B) Component Panel Assembly RHPG/ JEL 6, 9, & 12 KW For drawing refer to next page QTY./ASSY. 75384- ITEM PART NO. DESCRIPTION -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 112298 Component Panel 0663678...
- Page 23 Figure 7.4 – 75384 (rev B) Component Panel Assembly RHPG/ JEL 6, 9, & 12 KW 2023 UnityLab Corp. All rights reserved. | 22 ©/TM...
- Page 24 ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL Figure 7.5 – 75385 (rev B) Outlet Solenoid Assembly Kit JEL-10, 11, 12 For drawing refer to next page ITEM PART NO. DESCRIPTION QTY. 73322 Pedal & Cord Assembly 0663310 Strain Relief 90°...
- Page 25 Figure 7.5 – 75385 (rev B) Outlet Solenoid Assembly Kit JEL-10, 11, 12 2023 UnityLab Corp. All rights reserved. | 24 ©/TM...
- Page 26 ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL Figure 7.6 – 75308 (rev B) Water Pump Assembly Kit 380-460V, 3 Phase, RHPG/ JEL 6, 9, & 12 KW For drawing refer to next page ITEM PART NO. DESCRIPTION QTY. 085177 Pump, 380-460V, 3 Phase 75588-50 Solenoid Valve Assembly, 1/2”, 24V 75507...
- Page 27 Figure 7.6 – 75308 (rev B) Water Pump Assembly Kit 380-460V, 3 Phase, RHPG/ JEL 6, 9, & 12 KW 2023 UnityLab Corp. All rights reserved. | 26 ©/TM...
- Page 28 ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL Figure 7.7 – 73529 (rev B) Water Pump Assembly Kit Single Phase, RHPG/ JEL 6, 9, & 12 KW For drawing refer to next page ITEM PART NO. DESCRIPTION QTY. 3CR6M* Pump, 380-460V, 3 Phase 75588-37 Solenoid Valve, 3/8’, 24V 75507...
- Page 29 Figure 7.7 – 73529 (rev B) Water Pump Assembly Kit Single Phase, RHPG/ JEL 6, 9, & 12 KW 2023 UnityLab Corp. All rights reserved. | 28 ©/TM...
- Page 30 ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL Figure 7.8 – 52771 (rev B) Wiring Schematic RHPG-18 thru 36 Boilers 3 Phase...
- Page 31 Figure 7.9 – 52794 Wiring Schematic RHPG-18 Boiler 1 Phase 2023 UnityLab Corp. All rights reserved. | 30 ©/TM...
- Page 32 ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL Figure 7.10 – 75285 (rev D) Electrical Enclosure Assembly - Boilers 18 thru 36 KW For drawing refer to next page QTY./ASSY. 75285- ITEM PART NO. DESCRIPTION -1 -2 -3 -4 -5 -6 -7 -8 112298 Component Panel 0663678...
- Page 33 Figure 7.10 – 75285 (rev D) Electrical Enclosure Assembly - Boilers 18 thru 36 KW 2023 UnityLab Corp. All rights reserved. | 32 ©/TM...
- Page 34 ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL Figure 7.11 – 73493 (rev C) Water Pump Assembly Kit RHPG 18-36 KW For drawing refer to next page QTY./ASSY. *See chart below for ITEM PART NO. DESCRIPTION assembly description 73493 3CT5M* Pump 085177 Pump 75588-50...
- Page 35 Figure 7.11 – 73493 (rev C) Water Pump Assembly Kit RHPG 18-36 KW 2023 UnityLab Corp. All rights reserved. | 34 ©/TM...
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Page 36: Drawings & Parts List
ELECTRIC STEAM GENERATORS & OILERS TECHNICAL MANUAL OPTIONAL PARTS LIST PART NO. DESCRIPTION QTY. Caster Plate 108577-2 Models: JEL-10, JEL-11, JEL-12, RHPG-15, RHPG-16, RHPG-17 Manual Steam Gun 1 SG755 Models: RHPG-15, RHPG-16, RHPG-17 Handle Kit 1 74717 Models: JEL-10, JEL-11, JEL-12,... - Page 37 2023 UnityLab Corp. All rights reserved. | 36 ©/TM...
- Page 38 For original quality parts call: 1-800-221-0146 or fax: 1-570-928-9807 www.buyhoffmansteamersnow.com...
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