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Commercial Electric Xi Control Instruction Manual
CoMMErCIal ElECtrIC watEr hEatEr
ModEls dVE-150 thru dVE-10000
dhE-200 thru dVE-10000
up to 150kw
A DIVISION OF A. O. SMITH CORPORATION
RENTON, WASHINGTON
www.hotwater.com
plaCE thEsE InstruCtIons adjaCEnt to hEatEr and notIfy ownEr to kEEp for futurE rEfErEnCE.
PRINTED 0410
317025-001
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Table of Contents
Related Manuals for A.O. Smith DVE-10000
Summary of Contents for A.O. Smith DVE-10000
- Page 1 Commercial Electric Xi Control Instruction Manual CoMMErCIal ElECtrIC watEr hEatEr ModEls dVE-150 thru dVE-10000 dhE-200 thru dVE-10000 up to 150kw A DIVISION OF A. O. SMITH CORPORATION RENTON, WASHINGTON www.hotwater.com plaCE thEsE InstruCtIons adjaCEnt to hEatEr and notIfy ownEr to kEEp for futurE rEfErEnCE.
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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: General Safety Information
GEnEral safEty InforMatIon prECautIons hydroGEn Gas (flaMMaBlE) DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN UNDER WATER. Immediately call a qualified service technician to inspect the appliance 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. -
Page 4: Table Of Contents
taBlE of ContEnts this manual contains the operating instructions for the commercial electric Xi control. It is intended to be used in conjunction with the water heater instruction manual. SAFE INSTALLATION, USE AND SERVICE....2 WIRING DIAGRAMS ............6 GENERAL SAFETY INFORMATION ....... 3 TEMPERATURE REGULATION ........ -
Page 5: Electrical Data
ElECtrICal data GEnEral Control CIrCuIts Check the water heater model and rating plate information against The water heater is equipped with an electronic control system. The the characteristics of the branch circuit electrical supply. Do not system includes a CCB (Central Control Board) circuit board, an connect the heater to an improper source of electricity. -
Page 6: Wiring Diagrams
wIrInG dIaGraMs wIrInG dIaGraMs dIaGraM 1. larGE CoMMErCIal wIrE dIaGraM 208-240V / 3ph dIaGraM 2. larGE CoMMErCIal wIrE dIaGraM 300-600V/3ph X-FMR 300-600V/3 PILOT PRIMARY X-FMR SEC. SWITCH FUSES 120V SEC FUSE 5 4 3 2 1 FUSES JUMPER LWCO CNTCTR(S) TO DISPLAY ELEMENT ORDER = E1 THROUGH E10 STD. -
Page 7: Temperature Regulation
tEMpEraturE rEGulatIon hIGh tEMpEraturE lIMIt Controls (ECo) tEMpEraturE adjustMEnt This water heater is equipped with an ECO (energy cut off). This switch is adjustable, up to 190 degree F. An ECO is a normally closed switch that opens (activates) on a rise in temperature. -
Page 8: Control System Operation
Control systEM opEratIon hEatInG ElEMEnt opEratIon appears on the LCD screen above an Operational Button there is no function assigned. Progressive Sequencing: Elements are energized and de-energized thE dEsktop sCrEEn according to adjustable (1 to 20°F) Differential set points for each element. Element Rotation - first element on is rotated with each successive call for heat. - Page 9 taBlE 1 - status ICons ICon dEsCrIptIon Water temperature in the tank has fallen. Shaded area of the animated thermometer icon will rise and fall in response to water temperature in the storage tank as sensed from the immersion Temperature Probe. Water temperature in the tank has reached the Operating Set Point.
- Page 10 taBlE 3 - Control systEM MEnus MEnus dEsCrIptIon Most commonly accessed menu. Operating Set Point, Differential settings, Tank Temperature and Tank Probe Temperatures Offset are located in this menu. Current Operating State/Mode (heating/standby etc) and status (open/closed - on/off - yes/no) of monitored Heater Status water heater functions and components are displayed in this menu.
- Page 11 tEMpEraturEs MEnu operating sequence On a water heater equipped with 3 heating elements, with an operating set point Operating Set Point of 120°F and all Differential settings at 2°F the On/Off sequencing of heating elements would be as follows: User adjustable setting 90°F to 190°F range; factory default is 120°F.
- Page 12 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. aCtIon dIsplay From the Desktop Screen, press the Operational Button underneath “MENU”...
- Page 13 watEr hEatEr status MEnu Element # on Displays the on/off status of each heating element. Yes = On, No = This menu displays non adjustable operational information. Use the Off. Up & Down Buttons to navigate to the bottom of this menu. tank full top of Menu Displays the status of the optional LWCO (Low Water Cut Off) device.
- Page 14 The Economy Set Point is the water temperature the control daily operating Mode (sun - Mon - tue - wed - thu - fri - sat) system maintains during programmed Economy Mode time periods. “Economy Set Point” is displayed instead of Seven daily sub menus are listed at the bottom of the Economy “Operating Set Point”...
- Page 15 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 16 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.
- Page 17 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”...
- Page 18 alarM output sEtup MEnu alarm output settings Changing the user settings in this menu is done using the same Permits user to set the condition (from a list of options) for when methods for changing the Operating Set Point. the CCB’s integral alarm output relay will be energized. Alarm relay connections (common, normally open, normally closed) are located on Service Note: Adjustable user settings in the Alarm Output Setup the J3 terminal strip on the CCB - see wiring diagrams.
- Page 19 Bottom of Menu messages in chronological order in this menu. The most recent will be at the top of the list. A time stamp is displayed below each listed Fault and Alert message showing when the Fault or Alert condition occurred. The Fault History is useful when dealing with intermittent operational problems or when the customer has reset the control system prior to a service agent’s arrival.
- Page 20 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.
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Page 21: Troubleshooting Checklist
trouBlEshootInG ChECklIst Before calling for service, check the following points to see if the cause watEr Is too hot of trouble can be identified and corrected. Reviewing this checklist may eliminate the need of a service call and quickly restore hot water service. Refer to the TEMPERATURE REGULATION section of this manual. - Page 22 A DIVISION OF A. O. SMITH CORPORATION RENTON, WASHINGTON Technical Support: 800 527-1953 Parts Department: 800 433-2515 www.hotwater.com...