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Instruction Manual
COMMERCIAL ELECTRIC WATER HEATERS
MODELS 5-120 GALLONS
INSTALLATION - OPERATION - SERVICE -
MAINTENANCE - LIMITED WARRANTY
Thank you for buying this energy efficient water
heater. We appreciate your confidence in our
products.
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
PRINTED 0218
100299211 2000553151 (Rev. A)

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Sommaire des Matières pour Lochinvar COMPACT ASME HI-POWER 5

  • Page 1 Instruction Manual COMMERCIAL ELECTRIC WATER HEATERS MODELS 5-120 GALLONS INSTALLATION - OPERATION - SERVICE - MAINTENANCE - LIMITED WARRANTY Thank you for buying this energy efficient water heater. We appreciate your confidence in our products. PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE. PRINTED 0218 100299211 2000553151 (Rev.
  • Page 2: Safe Installation, Use And Service

    SAFE INSTALLATION, USE AND SERVICE Your safety and the safety of others is extremely important in the installation, use, and servicing of this water heater. 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.
  • Page 3: Precautions

    GENERAL SAFETY INFORMATION PRECAUTIONS HYDROGEN GAS (FLAMMABLE) DO NOT USE THIS WATER HEATER IF ANY PART HAS BEEN EXPOSED TO FLOODING OR WATER DAMAGE. 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 technician.
  • Page 4: Table Des Matières

    TABLE OF CONTENTS SAFE INSTALLATION, USE AND SERVICE...... 2 TEMPERATURE REGULATION ........17 Important Definitions ............2 High Temperature Limit Controls (ECO) ......17 GENERAL SAFETY INFORMATION ........3 Thermostat Controls ............17 Precautions ..............3 Temperature Adjustment ..........17 Hydrogen Gas (Flammable) ...........3 CONTROL SYSTEM OPERATION ........18 INTRODUCTION ..............
  • Page 5: Introduction

    INTRODUCTION Thank You for purchasing this water heater. Properly installed The principal components of the heater are identified on page 6. The model and rating plate on page 7 interprets and maintained, it should give you years of trouble free service. certain markings into useful information.
  • Page 6: Dimensions And Capacities Data

    DIMENSIONS AND CAPACITIES DATA Figure 1. Rough-In Dimensions Table 1. Rough-In Dimensions Models 5-120 Gallons All Dimensions in Inches (mm) Tank Capacity Approximate Shipping Wt. Maximum kW Input Liters Gallons lbs. 22.00 558.8 mm 16.00 406.4 mm 24.00 610 mm 4.25 108 mm 37.2...
  • Page 7: Features And Components

    FEATURES AND COMPONENTS Below is an illustration of the water heater with its features called out. The text of this manual will refer to the items shown. UIM - USER INTERFACE MODULE (on front of hinged access door) Figure 2. Features and Components...
  • Page 8: Approvals

    APPROVALS All models are listed All models meet National by Underwriters Sanitation Foundation Laboratories Inc. NSF-5 requirements. MODEL AND RATING LOCATING THE NEW WATER HEATER FACTS TO CONSIDER ABOUT THE LOCATION damage to the area adjacent to the heater or to lower floors of the structure.
  • Page 9: Installation

    INSTALLATION REQUIRED ABILITY Installation and service of this water heater requires ability equivalent to that of a qualified agency (page 2) in the field Toxic Chemical Hazard involved. Plumbing and electrical work is required. • Do not connect to non-potable water system. GENERAL The installation must conform with these instructions and the CONTAMINATED WATER...
  • Page 10: Water Line Connections

    be blocked or reduced in size under any circumstances. Excessive Water temperature over 125°F (52°C) length, over 30 feet (9.14 m), or use of more than four elbows can can cause severe burns instantly cause restriction and reduce the discharge capacity of the valve. resulting in severe injury or death.
  • Page 11: Electrical Data

    ELECTRICAL DATA GENERAL circuits. Refer to the control circuit label on the water heater for details. The CCB is powered by a small 120V/24V transformer. Check the water heater model and rating plate information against The control circuit operates on 120V supplied by a larger 75VA the characteristics of the branch circuit electrical supply.
  • Page 12 Table 3. Allowable Ampacities of Insulated Conductors Not More Than Three Conductors in Raceway or Cable or Earth (Directly Buried), Based on Ambient Temperature of 30°C (86°F) Size Temperature Rating of Conductor Size 60°C 75°C 85°C 90°C 60°C 75°C 85°C 90°C (140°F) (167°F)
  • Page 13: Wiring Diagrams

    WIRING DIAGRAMS THREE PHASE AND 3-1 PHASE WIRE DIAGRAMS OPTIONAL 208 - 240V / 3Φ CONTACTOR 1 CONTACTOR 2 CONTACTOR 3 CONTACTOR 4 CONTACTOR 5 BLUE BLACK BLACK BLACK CONTACTOR 1 CONTACTOR 2 CONTACTOR 3 CONTACTOR 4 CONTACTOR 5 COIL COIL COIL COIL...
  • Page 14: 3-1 Phase Conversions

    3-1 PHASE CONVERSIONS In the case where the unit is phase convertible and it has only one contactor, jumper wires (provided) must be added according to the phase of the supply voltage. See the diagram below. For single-phase connection, jumpers A-C and B-D must be added. For three- phase connection, jumper B-C must be added.
  • Page 15 OPTIONAL 300-600V / 3Φ CONTACTOR 1 CONTACTOR 2 CONTACTOR 3 BLUE BLACK BLACK BLACK CONTACTOR 1 CONTACTOR 2 CONTACTOR 3 COIL COIL COIL PRIMARY 120V 120V 120V FUSES RETURN RETURN RETURN OUT 3 BLACK 120:24 BLACK J5-2 YELLOW J1-5 120V SECONDARY TEMPERATURE J5-3 BLACK...
  • Page 16: Operation

    OPERATION GENERAL INITIAL START UP Refer to the Features and Components section of this manual The following checks should be made by the installer when the for the location of components mentioned in the instructions that water heater is placed into operation for the first time: follow.
  • Page 17: Temperature Regulation

    TEMPERATURE REGULATION HIGH TEMPERATURE LIMIT CONTROLS (ECO) TEMPERATURE ADJUSTMENT This water heater is equipped with an ECO (energy cut off) non adjustable high temperature limit control. An ECO is a normally closed switch that opens (activates) on a rise in temperature. If Electrical Shock Hazard the ECO switch contacts open (activate) due to abnormally high water temperatures the control system will lock-out and disable...
  • Page 18: Control System Operation

    CONTROL SYSTEM OPERATION HEATING ELEMENT OPERATION CONTROL SYSTEM FEATURES ADVANCED DIAGNOSTICS Plain English text and animated icons display detailed operational and diagnostic information. LCD screen on the front of the water heater displays the Sequence of Operation in real time. Fault or Alert messages are displayed when operational problems occur.
  • Page 19 Day/Time/Operating Mode: The current time and day are also displayed on the Desktop Screen. “Clock Not Set” will be displayed until the time clock has been initially set. Day and Time are adjusted in the Economy Mode Setup menu. The current Operating Mode, either Normal Mode or Economy Mode, is displayed beneath the day and time.
  • Page 20 Table 7. Operating States STATE DESCRIPTION The water heater is not in an active heating cycle. This usually indicates the temperature in the tank has reached the Standby Operating Set Point and the control system has terminated the heating cycle. Heating The control system is in the Heating Mode.
  • Page 21: Temperatures Menu

    TEMPERATURES MENU Table 9. On/Off Element Sequencing in 3-Element Water Heater OPERATING SET POINT ELEMENT DIFFERENTIAL TURN ON TEMP TURN OFF TEMP User adjustable setting 90°F to 190°F range; factory default is NUMBER SETTING 120°F. When the water temperature sensed by the control system from the immersion Temperature Probe reaches the Operating Element 1 2°F...
  • Page 22 Temperature Settings The Operating Set Point and the Differential Settings are adjusted in the Temperatures Menu. The following instructions explain how to adjust these user settings and navigate the control system menus. Adjusting the Operating Set Point and the Differential Settings ACTION DISPLAY From the Desktop Screen, press the Operational Button underneath...
  • Page 23: Heater Status Menu

    HEATER STATUS MENU ECONOMY MODE SETUP MENU This menu displays non adjustable operational information. Use This menu contains settings used to establish an “Economy Set the Up & Down Buttons to navigate to the bottom of this menu. Point” and “Economy Mode” operating periods. This control system feature can help reduce operating costs during unoccupied, low Top of Menu load, or peak demand periods.
  • Page 24: Economy Mode Settings

    ECONOMY MODE SETTINGS SETPOINT ADJUSTMENT VALUE ACTION DISPLAY From the Desktop screen, press the Operational Button underneath “MENU” to enter the Main Menu. Notice how the text above the Operational Buttons on the display changes as you navigate through the various menus and screens. Use the Up/Down buttons to select (highlight in black) the Economy Mode Setup menu from the Main Menu.
  • Page 25 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. Use the Up/Down buttons to select the “Weekday”...
  • Page 26: Economy Mode Settings

    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 Op- erational Button underneath “CHANGE” to enter this menu. Use the Up/Down buttons to select (highlight in black) the “Economy Mode All Day”...
  • Page 27: Alarm Output Setup Menu

    ALARM OUTPUT SETUP MENU Note: Adjustable user settings in the Alarm Output Setup menu are unaffected by Restore Factory Defaults. Permits user to set the condition (from a list of options) for when DISPLAY SETTINGS MENU the CCB’s integral alarm output relay will be energized. Alarm relay connections (common, normally open, normally closed) are located Permits user to set display options for viewing information on the on the J3 terminal strip on the CCB.
  • Page 28: Current Fault / Alert Menu

    has been in the heating mode. IE: any heating elements have Current/History Fault Message been energized. Element # Cycles - Total accumulated count of heating cycles for each heating element. Element # On Time - Total accumulated heating on time for each heating element.
  • Page 29: Restore Factory Defaults Menu

    RESTORE FACTORY DEFAULTS MENU This control system menu allows the user to restore most of the control system’s user settings to their factory default settings. User settings in the Alarm Output Setup and Display Settings menus are unaffected by executing Restore Factory Defaults. RESTORE FACTORY DEFAULTS ACTION DISPLAY...
  • Page 30: Maintenance

    MAINTENANCE GENERAL or discharges periodically, this may be due to thermal expansion. Consult your local water supplier or a Qualified Service Agency Water heater maintenance includes inspection and testing of the for further information. Do not plug the temperature-pressure Temperature Pressure Relief Valve, periodic tank flushing and relief valve.
  • Page 31 UN-LIME ® delimer. Do not use muriatic or hydrochloric acid base OTHER SCALE REMOVAL: deliming solutions to remove lime scale from the elements. Flush cleaned ends of elements with water when deliming or cleaning is completed. THE PROCESS FOR LIME SCALE REMOVAL IS AS FOLLOWS: Remove sediment and scale from the tank bottom through Turn off electrical disconnect switch.
  • Page 32: Troubleshooting Checklist

    TROUBLESHOOTING CHECKLIST Before calling for service, check the following points to see if the WATER HEATER MAKES STRANGE SOUNDS cause of trouble can be identified and corrected. Reviewing this Sediment or lime scale accumulations on the elements causes checklist may eliminate the need of a service call and quickly sizzling and hissing noises when the heater is operating.
  • Page 33: Piping Diagrams

    PIPING DIAGRAMS...
  • Page 45 NOTES...
  • Page 46 NOTES...
  • Page 47 NOTES...
  • Page 48 Copyright © 2018 All rights reserved.

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