Hubbell CR - Manual - manualsarea.com

Page 3 - TABLE OF CONTENTS

3 TABLE OF CONTENTS SECTION TITLE PAGE # I GENERAL DESCRIPTION AND CONSTRUCTION 5 II INSTALLATION 12 III SCHEDULED MAINTENANCE AND OPERATION 14 IV TROUBLESHOOTING 15 V SERVICING & REPLACEMENT OF PARTS 17 VI MISCELLANEOUS CHARTS AND FORMULAS 22

Page 5 - GENERAL DESCRIPTION AND CONSTRUCTION; GENERAL DESCRIPTION; Other materials are available upon request.; VESSEL CONNECTIONS

5 SECTION I - GENERAL DESCRIPTION AND CONSTRUCTION GENERAL DESCRIPTION This book describes a packaged electric heater that is a stationary, self-contained unit. The complete assembly consists of the pressure vessel, immersion electric heating element, thermostat, safety relief valve, safety high tem...

Page 7 - CONTROL THERMOSTAT; /16 DIN Digital Display

7 CONTROL THERMOSTAT The control panel is supplied standard with a single-stage immersion thermostatic switch. As an optional any of the following may be supplied; a four-stage immersion thermostatic switch, a solid-state staging controller with thermistor, or a digital 1/16 DIN temperature controll...

Page 8 - TEMPERATURE HIGH LIMIT SWITCH; Manual Reset; MAGNETIC CONTACTOR

8 TEMPERATURE HIGH LIMIT SWITCH As a safety device, an immersion high temperature cut-off switch with manual reset, adjustable through a range of 100° - 240° F, is provided. The high limit must be manually reset thereafter to restart the heater. Optionally a 1/16 DIN digital controller may be used a...

Page 9 - INDIVIDUALLY FUSED ELEMENTS; Type JJS; OPTIONS

9 INDIVIDUALLY FUSED ELEMENTS To prevent the possibility of damage to control circuits and other elements in case of electrical overloads, fuses may be supplied for each element. Two types of fuses may be used; a type NON for voltages less than 250-volt or type JJS for voltage less than 600-volt. Ty...

Page 11 - Please reference drawing for details.

11 Silicon Control Rectifier An SCR “zero fired” power controller for 0-100% proportional control of heaters may be supplied. Dial Temperature and Pressure Gauge A combination temperature (70° - 250° F) and pressure (0 – 200 psi) gauge with 2½-inch dial may be supplied for in-line installation (ship...

Page 12 - SECTION II –; INSTALLATION; If the heater is NOT filled with water when; PIPING INSTALLATION

12 SECTION II – INSTALLATION WARNING / CAUTION DO NOT TURN ON THE ELECTRIC POWER SUPPLY to this equipment until heater is completely filled with water and all air has been released. If the heater is NOT filled with water when the power is turned on, the heating elements will burn out. For protection...

Page 13 - FILLING THE HEATER; Temperature Probe

13 Outlet to floor drain Install into provided tapping Manual Release Lever Temperature and Pressure Relief Valve 4. Install a relief valve overflow pipe to a nearby floor drain. CAUTION: No valve of any type should be installed between the relief valve and tank or in the drain line. FILLING THE HEA...

Page 14 - Inspect element flange for leakage as follows:

14 SECTION III - SCHEDULED MAINTENANCE AND OPERATION WARNING / CAUTION Before performing any maintenance procedure, make certain power supply is OFF and cannot accidentally be turned on. MAINTENANCE AND OPERATION The heater is automatic in its operation. It will maintain water at the temperature set...

Page 15 - SECTION IV –; TROUBLESHOOTING

15 SECTION IV – TROUBLESHOOTING Symptom Probable Cause Corrective Action / Remedy Circuit breaker tripped at source. Reset circuit breaker. On/Off switch in ‘OFF’ position, if installed. Turn switch to ‘ON’ position. Circuit breaker at control cabinet tripped, if installed. Reset circuit breaker. Bl...

Page 16 - Heater improperly sized

16 Faulty thermostat. Check thermostat adjustment. Monitor thermostat as described in Section III, Quarterly Inspection. Replace if necessary. Blown fuse in element fuse block, if installed. Replace fuse. Heating element not working on all phases Check to see that heating element is working on all p...

Page 17 - SERVICING & REPLACEMENT OF PARTS

17 SECTION V - SERVICING & REPLACEMENT OF PARTS WARNING / CAUTION Before servicing or replacing any part make sure to turn the power supply switch to the OFF position. MAGNETIC CONTACTOR 1. Disconnect power from unit. 2. Disconnect line and load wires to contactor. 3. Disconnect two (2) 14 gauge...

Page 18 - IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF

18 IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF 1. Disconnect power from unit. 2. Remove access cover. 3. Remove high limit cover screw and cover. Cover Cover Screw Reset Switch 4. Disconnect the two (2) 14 gauge wires. Wires Capillary Tube 5. Remove capillary tube and bulb from thermowell 6. Remove two...

Page 19 - IMMERSION THERMOSTAT

19 IMMERSION THERMOSTAT 1. Disconnect power from unit. 2. Remove access cover and locate thermostat. 3. Remove high limit cover screw and cover. Cover Cover Screw 4. Disconnect the two (2) 14 gauge wires. Wires Capillary Tube 5. Remove capillary tube and bulb from thermowell. 6. Remove two (2) mount...

Page 20 - HEATING ELEMENT

20 HEATING ELEMENT 1. Disconnect power from unit. 2. Shut off incoming water supply. 3. Attach hose to drain connection. 4. Lift manual release lever on relief valve to let air into system or break union on outgoing water line. 5. Drain water from tank. 6. Remove element housing cover 7. Disconnect ...

Page 21 - RELIEF VALVE

21 RELIEF VALVE 1. Disconnect power from unit. 2. Shut off incoming water supply. 3. Lift test lever on relief valve to relieve pressure in tank. 4. Disconnect overflow piping. 5. Unscrew relief valve, remove assembly and replace with new one. 6. Connect overflow piping. 7. Turn on incoming water su...

Page 22 - SECTION VI –; MISCELLANEOUS CHARTS AND FORMULAS

22 SECTION VI – MISCELLANEOUS CHARTS AND FORMULAS NEMA ENCLOSURES

Page 23 - ELECTRICAL DATA