InstALLAtIon - oPErAtIon - sErVICE MAIntEnAnCE - LIMItEd wArrAnty 300 Maddox Simpson Parkway Lebanon, TN 37090 Phone: 615-889-8900 • Fax: 615-547-1000 Technical Service email: 2tech@lochinvar.com www.Lochinvar.com Low Lead Content (OPTIONAL) Thank you for buying this energy efficient water heater. We appreciate your confidence in our products.
sAfE InstALLAtIon, usE, And sErVICE the proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard.
GEnErAL sAfEty InforMAtIon PrECAutIons hydroGEn GAs (fLAMMABLE) DO NOT USE THIS WATER HEATER IF ANY PART HAS BEEN UNDER WATER. Immediately call a qualified service technician to inspect the water heater and to replace any part of the control system which has been under water. If the unit is exposed to the following, do not operate heater until all corrective steps have been made by a qualified service agency: 1.
tABLE of ContEnts Thermostat Settings – Electronic Control Models ....21 SAFE INSTALLATION, USE AND SERVICE........2 GENERAL SAFETY INFORMATION ..........3 ELECTRONIC CONTROL MODELS OPERATION ......21 TABLE OF CONTENTS ..............4 Control System Features ............21 INTRODUCTION ................4 Control System Navigation ............
dIMEnsIons And CAPACItIEs dAtA hs/hC ModEL dIffErEnCEs This Instruction Manual covers two models of commercial electric water heaters; HS models and HC models. These two models are equipped from the factory with different controls. HS models are factory equipped with surface mounted thermostat/ECO combination controls.
APProVALs Low Lead Content All models meet All models are listed National Sanitation by Underwriters Foundation NSF-5 Laboratories Inc. requirements. ModEL And rAtInG COMMERCIAL STORAGE TANK WATER HEATER LISTED 22U1 Low Lead Content MODEL NUMBER SERIAL NUMBER ITEM ID / PART NUMBER No.
LoCAtInG thE nEw wAtEr hEAtEr fACts to ConsIdEr ABout thE LoCAtIon • Near a floor drain. The heater should be located in an area where leakage of the tank or connections will not result in damage to the area adjacent to the heater or to lower floors of the structure. •...
InstALLAtIon rEQuIrEd ABILIty ContAMInAtEd wAtEr Installation and service of this water heater requires ability equivalent This water heater shall not be connected to any heating to that of a qualified agency (page 2) in the field involved. Plumbing system(s) or component(s) used with a non-potable water and electrical work is required.
by the manufacturer. The valve is certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment of materials as meeting the requirements for Relief Valves for Hot Water Supply Systems, ANSI Z21.22 • CSA 4.4, and the code requirements of ASME. If replaced, the new valve must meet the requirements of local codes, but not less than a combination temperature and pressure relief valve rated/sized and certified as indicated in the above...
ELECtrICAL GEnErAL The installation must conform with these instructions and the local code authority having jurisdiction and the requirements of the power company. In the absence of local codes, the installation must comply with the current editions of the National Electrical Code, NFPA 70 or the Canadian Electrical Code CSA C22.1.
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table 4. AMPErAGE tABLE/oVErCurrEnt ProtECtIon UIM (User Interface Module) for user interface & information display and element current sensors for monitoring the power circuits. Refer to the control circuit label on the water heater for details. The CCB is The tables above provides the total connected heating element load powered by a small 120V/24V transformer.
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wIrInG dIAGrAMs CCB (CEntrAL ControL BoArd) ControL CIrCuIt dIAGrAM - ELECtronIC ControL ModELs figure 6.
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wIrInG dIAGrAMs PowEr CIrCuIt dIAGrAMs - ELECtronIC ControL ModELs The water heater’s electrical components are pictured and identified on page 7. The following describes the heater circuits and includes wiring diagrams. All heater circuits are designed for 60/50 hertz alternating current. The water heater circuit wiring is 12 AWG, AWM, or TEW type, rated 600 volts, 105°C.
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wIrInG dIAGrAMs nInE ELEMEnt - sInGLE And thrEE PhAsE dIAGrAM 2. ConVErsIon to sInGLE PhAsE ConVErsIon to thrEE PhAsE When the heater is shipped for connection to a three-phase electrical When heater is shipped for connection to a single-phase electrical service, it may be connected to a single-phase electrical service of service, it may be connected to a three-phase electrical service of the same voltage by:...
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wIrInG dIAGrAMs PowEr CIrCuIt dIAGrAMs - surfACE Mount ControL ModELs The water heater’s electrical components are pictured and identified on page 8. The following describes the heater circuits and includes wiring diagrams. All heater circuits are designed for 60/50 hertz alternating current. The water heater circuit wiring is 12 AWG, AWM, or TEW type, rated 600 volts, 105°C.
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wIrInG dIAGrAMs nInE ELEMEnts - sInGLE And thrEE PhAsE dIAGrAM 4. ConVErsIon to sInGLE PhAsE ConVErsIon to thrEE PhAsE When the heater is shipped for connection to a three-phase electrical When heater is shipped for connection to a single-phase electrical service, it may be connected to a single-phase electrical service of service, it may be connected to a three-phase electrical service of the same voltage by:...
oPErAtIon drAInInG thE wAtEr hEAtEr GEnErAL It is recommended that the water heater storage tank be drained Refer to the Features and Components section of this manual and flushed every 6 months to reduce sediment buildup. The (pages 7 & 8) for the location of components mentioned in the instructions that follow.
tEMPErAturE rEGuLAtIon thErMostAt sEttInGs - surfACE Mount ControL hIGh tEMPErAturE LIMIt ControLs (ECo) Both the ELECTRONIC CONTROL and SURFACE MOUNT CONTROL model water heaters are equipped with one or more ECO (energy cut out) non adjustable high temperature limit control(s). An ECO is a normally closed switch that opens (activates) on a rise in temperature.
The Operating Set Point is adjustable from 90°F/42°C to 190°F/88°C. thErMostAt sEttInGs - ELECtronIC ControLs The factory setting is 120°F/49°C. See the Electronic Control Models Operation section of this manual for instructions on how to adjust the Operating Set Point and other user settings. These models are equipped with an electronic control system.
Menu: The left Operational Button is pressed to enter the Main Menu are adjusted in the Economy Mode Setup menu. The current where all control system menus are accessed. See Table 9. for a list Operating Mode, either Normal Mode or Economy Mode, is of control system menus.
oPErAtInG stAtEs. stAtE dEsCrIPtIon The water heater is not in an active heating cycle. This usually indicates the temperature in the tank has reached Standby the Operating Set Point and the control system has terminated the heating cycle. Heating The control system is in the Heating Mode. At least one bank of heating elements has been energized. The control system has detected/declared an Alert Condition.
differential settings tank temperature Adjustable user setting(s) 1°F to 20° range; factory default is 2°F. Non adjustable information display. Current water temperature as sensed The water heaters covered in this Instruction Manual will have 3, 6 or by the control system from the immersion Temperature Probe. 9 heating elements.
hEAtEr stAtus MEnu Alarm Condition Displays the status of the user definable Alarm Output function - see This menu displays non adjustable operational information. This Alarm Output Setup Menu. Yes = alarm condition has been met, No menu contains more information that can be displayed on one screen = alarm condition has not been met.
“Normal Operation All Day” - “Economy Mode All Day” and “Normal Normal operation Between: When this operating mode is active Operation Between.” Only one Operating Mode can be active, the there will also be start and stop times to program. The normal factory default is Normal Operation All Day.
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EConoMy ModE sEttInGs time Clock settings ACtIon dIsPLAy From the Desktop Screen navigate to the Economy Mode Setup menu. Use the Up/Down buttons to select (highlight in black) Current Time sub menu. Press the Operational Button underneath “CHANGE” to enter the Current Time sub menu.
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EConoMy ModE sEttInGs daily operating Mode settings ACtIon dIsPLAy Economy Mode All Day: From the Economy Mode Setup menu use the Up/Down buttons to select (highlight in black) the Daily sub menu for “Sun.” Press the Operational Button underneath “CHANGE” to enter this menu. Use the Up/Down buttons to select (highlight in black) the “Economy Mode All Day”...
ALArM outPut sEtuP MEnu dIsPLAy sEttInGs MEnu Permits user to set display options for viewing information on the Permits user to set the condition (from a list of options) for when UIM’s LCD screen. the CCB’s integral alarm output relay will be energized. Alarm relay connections (common, normally open, normally closed) are located on the J3 terminal strip on the CCB.
Elapsed time This menu displays non adjustable operational information. The control system records and stores the last 9 Fault and Alert Total accumulated time the control system (water heater) has been messages in chronological order in this menu. The most recent energized.
restore factory defaults ACtIon dIsPLAy From the Main Menu use the Up/Down buttons to select (highlight in black) the “Restore Factory Defaults” menu. Press the Operational Button underneath “SELECT.” The Restore Factory Defaults menu will be displayed. From the Restore Factory Defaults menu press the Operational Button underneath “YES.”...
AnodE rod InsPECtIon fLushInG thE wAtEr hEAtEr 1. Turn off the electrical supply to the water heater at the breaker or disconnect switch. 2. Ensure the cold water inlet valve is open. 3. Open a nearby hot water faucet and let the water run until the water is no longer hot.
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ThE ProCESS For LIME SCALE rEMoVAL IS AS FoLLowS: oThEr SCALE rEMoVAL: 1. Flush cleaned ends of elements with water when deliming or 1. Turn off electrical disconnect switch. cleaning is completed. 2. Drain the heater following DRAINING instructions. 2. Remove sediment and scale from the tank bottom through the 3.
trouBLEshootInG ChECkLIst ChECkLIst ABNORMAL SOUNDS Before calling for service, check the following points to see if the 1. Sediment or lime scale accumulations on the elements causes cause of trouble can be identified and corrected. sizzling and hissing noises when the heater is operating. •...
LEAkAGE ChECkPoInts INSTrUCTIoNS: USE ThIS ILLUSTrATIoN AS A GUIdE whEN ChECkING For SoUrCES oF wATEr LEAkAGE. Where possible, remove or lift top cover to examine threads of fittings installed into tank for evidence of leakage. Correct fitting leaks as necessary. Relief valve operation and leakage may be due to water expansion during heating cycle or foreign material on seat of valve.
If the glass-lined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potable water therein, during the first THREE years after initial installation, the warrantor will supply a complete new Lochinvar water heater of equivalent size and current model at the warrantor's option.