Instruction/ maintenance manual of the product CR Hubbell
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OPERATING AND MAINTENANCE MANUAL FOR INSTANTANEOUS ELECTRIC CIRCULATION HEATER ELECTRIC HEATER COMPANY BASE MODEL “ CR ”.
2 HUBBELL ELECTRIC HEATER COMPANY P.O. BOX 288 STRATFORD, CT 06615 PHONE: (203) 378-2659 FAX: (203) 378-3593 INTERNET: http://www.hubbellheaters.com/ -- IMPORTANT -- Always reference the f ull model num ber and serial number when calling the factory. WARNING / CAUTION 1.
3 TABLE OF CONTENTS SECTION TITLE PAG E # I GENERAL DESCRI P TI ON AND CONSTRUCTION 5 II INSTAL LATI ON 12 III S C H E D U LE D M A IN TE NANC E AND OPERATION 14 I V TROUBL ES HOOTI NG 15 V S E R V I .
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5 SECTION I - GENERAL DESCRIPTION AND CONST RUCTION GENERAL DESCRIPTION This book describes a packaged electric heater that is a stationary , self-contained unit.
6 OUTER SHELL, INSULATION, AND SUPP ORTS The pressure vessel is encapsulated in 2-inches of high-density fiberg lass insulation. The protective shell is constructed of galvaneel and is coated with a durable silver hammertone finish. The horizontal configuration is supported on heavy -duty steel I-beam supports.
7 CONTROL THERMOS TAT The control pane l is supplied standard with a single- stage immersion thermosta tic switch. As an optional any of the following may be supplied; a four- stage immersion thermosta tic switch, a solid-state staging controller with thermistor, or a digital 1/16 DI N temperature controller with thermocouple.
8 TEMPERATURE HIGH LIMIT SWIT CH As a safety device, an immersion high temper ature cut-off switch with manua l reset, adjustable throug h a range of 100° - 240° F, is provided. The high limit must be manually reset thereafter to restart the heater.
9 INDIVID UALLY FUSED ELEM ENTS To prevent the possibility of damage to c ontrol circuits a nd other eleme nts in case of electrica l overloads, fuses may be suppl ied for each element. Two types of fuses may be used; a ty pe NON for voltages less than 250-volt or ty pe JJ S for voltage less than 600-volt.
10 On / Off Control Switc h A built-in non-fused On/Off disconnect switch may be supplied with the control panel to decrease the risk of injury when working with the c ontrol panel. Buil t-In Circui t Breaker A built-in circuit breaker may be provided with or without shunt trip protection for protection from circuit overload.
11 Silicon Control Re ctifier An SCR “zero fired” power controller for 0-100% proportional control of heaters may be supplied. Dial Temperature an d Pressure Gauge A combination temperature (70° .
12 SECTION II – INSTALLATION WARNING / CAUTION DO NOT TURN ON THE ELECTRI C POWER SUPPL Y to this equipment until heate r is completely filled with water and all air has been re leased. If the heater is NOT fille d with water when the power is turned on, the heating elements will burn out.
13 Outlet to floor drain I nstall into provided tapping Manual Release Lev e r Temperature and Pressure Relief Valve 4. I nstall a relief valve overflow pipe to a nearby floor drain. CAUTION: No valve of any ty pe should be installed between the relief valve and tank or in the drain line.
14 SECTION III - SCHEDULED MAINTE NANCE AND OPERATION WARNING / CAUTION Before performing any maintenance procedure, make certain power supply is OF F and cannot accidentally be turned on. MAINTENANCE AND OPERATION The heater is automatic in its operation.
15 SECTION IV – TROUBLESHOOTING Symptom Probable Cause Corrective Action / Remedy Circuit breaker tripped at source. Reset circ uit breaker. On/Off switch in ‘OF F’ position, if installed. Turn switch to ‘ON’ position. Circuit breaker at control cabinet trippe d, if installed.
16 Faulty thermostat. Chec k thermostat adjustment. Monitor thermostat as described in S e ct i o n III, Q u a rt e r l y In s p e c t i on. Replace if necessary.
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 OF F position. MAGNETIC CONTACTOR 1. Disconnect power from unit. 2. Disconnect line and load wires to contactor.
18 IMMERSION TEMPERATURE HIGH L IMIT CUT-OFF 1. Disconnect power from unit. 2. Remove access cover. 3. Remove high limit c over screw and cover. Cover Cover Screw Reset Switch 4. Disconnect the two (2) 14 gauge wires. Wires Capillary Tube 5. Remove capilla ry tube a nd bulb from thermowell 6.
19 IMMERSION THE RMOSTAT 1. Disconnect power from unit. 2. Remove access cover and locate t hermostat. 3. Remove high limit c over screw and cover. Cover Cover Screw 4. Disconnect the two (2) 14 gauge wires. Wires Capillary Tube 5. Remove capilla ry tube a nd bulb from thermowell.
20 HEATING ELEM ENT 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 sy stem or break union on outgoing water line. 5. Drain water from tank.
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 assemb ly and repl ace with new one. 6. Connect overflow piping.
22 SECTION VI – MISCELL ANEOUS CHARTS AND FORMULAS NEMA ENCLOSURE S.
23 ELECTRICAL D ATA.
24 FORMULAS.
25 TORQUE VALUE S BOLT SIZE 18-8 S/S IN. - LB S . BRASS IN. - LB S . SI LI CON BRONZE IN. - LB S . ALUMI NUM 2024-T4 IN. - LB S . 316 S/S IN. - LB S . MONEL IN. - LB S . 4-40 5.2 4.3 4.8 2.9 5.5 5.3 4-48 6.6 5.4 6.1 3.6 6.9 6.7 5-40 7.7 6.3 7.1 4.2 8.
An important point after buying a device Hubbell CR (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Hubbell CR yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Hubbell CR - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Hubbell CR you will learn all the available features of the product, as well as information on its operation. The information that you get Hubbell CR will certainly help you make a decision on the purchase.
If you already are a holder of Hubbell CR, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Hubbell CR.
However, one of the most important roles played by the user manual is to help in solving problems with Hubbell CR. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Hubbell CR along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
