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Commercial Electric Xi Control Instruction Manual
CoMMErCIal ElECtrIC watEr hEatEr
ModEls sEV-150 thru sEV-10000
sEh-200 thru sEh-10000
up to 150kw
500 Tennessee Waltz Parkway
Ashland City, TN 37015
plaCE thEsE InstruCtIons adjaCEnt to hEatEr and notIfy ownEr to kEEp for futurE rEfErEnCE.
PRINTED 0910
318579-000
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Table of Contents
Related Manuals for State Water Heaters SEH-200 THRU SEH-10000
Summary of Contents for State Water Heaters SEH-200 THRU SEH-10000
- Page 1 Commercial Electric Xi Control Instruction Manual CoMMErCIal ElECtrIC watEr hEatEr ModEls sEV-150 thru sEV-10000 sEh-200 thru sEh-10000 up to 150kw 500 Tennessee Waltz Parkway Ashland City, TN 37015 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
prECautIons 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
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 GENERAL SAFETY INFORMATION ... 3 Precautions ... 3 Hydrogen Gas (Flammable) ... -
Page 5: Electrical Data
GEnEral Check the water heater model and rating plate information against the characteristics of the branch circuit electrical supply. Do not connect the heater to an improper source of electricity. Voltage applied to the water heater should not vary more than +5% to -10% of the model and rating plate marking for satisfactory operation. -
Page 6: Wiring Diagrams
dIaGraM 1. larGE CoMMErCIal wIrE dIaGraM 208-240V / 3ph dIaGraM 2. larGE CoMMErCIal wIrE dIaGraM 300-600V/3ph 300-600V/3 PRIMARY X-FMR FUSES 120V SEC wIrInG dIaGraMs wIrInG dIaGraMs X-FMR PILOT SEC. SWITCH FUSE FUSES CNTCTR(S) ELEMENT ORDER = E1 THROUGH E10 5 4 3 2 1 JUMPER LWCO TO DISPLAY... -
Page 7: Temperature Regulation
hIGh tEMpEraturE lIMIt Controls (ECo) 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. If the ECO switch contacts open (activate) due to abnormally high water temperatures the control system will lock-out and disable further heating element operation. -
Page 8: Temperature Adjustment
HOT WATER OUTLET TEMPERED WATER OUTLET COLD WATER INLET CHECK VALVE TO TANK INLET fIGurE 1. tEMpEraturE adjustMEnt The water heaters covered in this instruction manual are equipped with an electronic control system. The control system senses tEMpEraturE rEGulatIon temperature from a factory installed immersion temperature probe. -
Page 9: Control System Operation
hEatInG ElEMEnt opEratIon Progressive Sequencing: Elements are energized and de-energized 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. First On/First Off - the first heating element energized at the beginning of a heating cycle is the first element de-energized at the end of the heating cycle. - Page 10 ICon 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. 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.
- Page 11 MEnus 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. Seven day 24 hour time clock with temperature set back capability to reduce operating costs during unoccupied Economy Mode Setup or reduced demand periods.
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Page 12: Temperatures Menu
tEMpEraturEs MEnu operating set point User adjustable setting 90°F to 190°F range; factory default is 120°F. When the water temperature sensed by the control system from the immersion Temperature Probe reaches the Operating Set Point the control system will end the heating cycle. A call for heat will be activated again when the water temperature drops below the Operating Set Point minus the 1st Differential Setting. - Page 13 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 From the Desktop Screen, press the Operational Button underneath “MENU”...
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Page 14: Water Heater Status Menu
watEr hEatEr status MEnu This menu displays non adjustable operational information. Use the Up & Down Buttons to navigate to the bottom of this menu. top of Menu Bottom of Menu status Displays the current Operating State of the control system. IE: Heating, Standby, Fault. - Page 15 The Economy Set Point is the water temperature the control system maintains during programmed Economy Mode time periods. “Economy Set Point” is displayed instead of “Operating Set Point” and “Economy Mode” appears beneath the current time on the Desktop Screen during Economy Mode time periods.
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Page 16: Economy Mode Settings
EConoMy ModE sEttInGs setpoint adjustment Value aCtIon 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 17 EConoMy ModE sEttInGs time Clock settings aCtIon 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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Page 18: Economy Mode Settings
EConoMy ModE sEttInGs daily operating Mode settings ACTION 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 19: Alarm Output Setup Menu
alarM output sEtup MEnu Permits user to set the condition (from a list of options) for when 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 - see wiring diagrams. Alarm output relay contacts are capable of switching 1 amp maximum at 120 VaC. -
Page 20: Current Fault / Alert Menu
Bottom of Menu Elapsed time Total accumulated time the control system (water heater) has been energized. total heating time Total accumulated time the control system has been in the heating mode. IE: any heating elements have been energized. Element # Cycles Total accumulated count of heating cycles for each heating element. -
Page 21: 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. -
Page 22: Troubleshooting Checklist
Before calling for service, check the following points to see if the cause of trouble can be identified and corrected. Reviewing this checklist may eliminate the need of a service call and quickly restore hot water service. BE SURE TO TURN OFF THE ELECTRICITY (ELECTRICAL DISCONNECT SWITCH) WHEN CHECKING EQUIPMENT. -
Page 23: Notes
notEs... - Page 24 500 Tennessee Waltz Parkway, Ashland City, TN 37015 Phone: 800-365-0024 • Parts: 800-433-2545 • Fax: 800-644-9306 www.statewaterheaters.com Copyright © 2010 A.O. Smith Corporation, All rights reserved.