State Water Heaters SEH-200 THRU SEH-10000 manual

PRINTED 0910 318579-000 Commercial Electric Xi Control Instruction Manual PLACE THESE INSTRUCTIONS ADJACENT TO HEA TER AND NOTIFY OWNER T O KEEP FOR FUTURE REFERENCE. COMMERCIAL ELECTRIC W A TER HEA TER MODELS SEV -150 THRU SEV -10000 SEH-200 THRU SEH-10000 UP TO 150KW 500 T ennessee Waltz Parkway Ashland City , TN 37015[...]

2 SAFE INST ALLA TION, USE AND SER VICE Y our 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. Read and obey all safety[...]

3 GENERAL SAFETY INFORMA TION When servicing this unit, verify the power to the unit is turned off prior to opening the control cabinet door . PRECAUTIONS DO NOT USE THIS APPLIANCE IF ANY P ART HAS BEEN UNDER W A TER. Immediately call a qualied service technician to inspect the appliance and to replace any part of the control system which has be[...]

4 T ABLE OF CONTENTS INTRODUCTION 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 INST ALLA TION, USE AND SERVICE ........................ 2 GENERAL SAFETY INFORMA TION .................................... 3 Precautions ..[...]

5 ELECTRICAL DA T A 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 . V oltage applied to the water heater should not vary more than +5% to -10% of the model and rating plate marking for satisfactory[...]

6 WIRING DIAGRAMS WIRING DIAGRAMS DIAGRAM 2. LARGE COMMERCIAL WIRE DIAGRAM 300-600V/3PH 300-600V /3 BLK BLK WHT WHT C5 C4 C3 C2 C1 C5 C4 C3 C2 C1 N GRN GRN BLK BLK X-FMR ECO TEMP 1 20V BLK BLU RED RED RED RED SDI 24V X-FMR PRIMARY FUSES X-FMR 12 0V SEC SEC. FUSE PILOT SWITCH BLK BLK JUMPER TO DISPL AY LWCO 54321 FUSES CNTCTR(S) ELEMENT ORDER = E1 T[...]

7 HIGH TEMPERA TURE 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[...]

8 TEMPERA TURE REGULA TION HO T WA TER OUTLET TO T ANK INLET CHECK VA LV E MIXING VA LV E COLD WA TER INLET TEMPERED WA TER OUTLET 12” TO 15” (30-38 cm) CHECK VA LV E FIGURE 1. TEMPERA TURE ADJUSTMENT T h e wa t e r h e at e r s c ov e r e d i n t h is in s t r u c t i on ma n u a l a r e e q ui p p e d w i t h a n el e c tr o n i c c o nt r o [...]

9 CONTROL SYSTEM OPERA TION HEA TING ELEMENT OPERA TION ProgressiveSequencing: Ele men ts are en er giz ed and de -en er giz ed ac cor di ng to adj ust ab le (1 to 20 °F ) Dif f ere nt ial set poi nts for each ele men t. El eme nt R ota ti on -  rst e le men t on i s ro tat ed w ith eac h su cce ss ive c al l fo r hea t. Firs t On /Fi rs t O[...]

10 T ABLE 1 - ST A TUS ICONS ICON DESCRIPTION W ater 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 T emperature Probe. W ater temperature in the tank has reached the Operating Set Point. Shaded area of the animated[...]

11 T ABLE 3 - CONTROL SYSTEM MENUS MENUS DESCRIPTION T emperatures Most commonly accessed menu. Operating Set Point, Differential settings, T ank T emperature and T ank Probe Offset are located in this menu. Heater Status Current Operating State/Mode (heating/standby etc) and status (open/closed - on/off - yes/no) of monitored water heater function[...]

12 TEMPERA TURES 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 T emperature 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 tempe[...]

13 T emperature Settings The Operating Set Point and the Differential Settings are adjusted in the T emperatures Menu. The following instructions explain how to adjust these user settings and navigate the control system menus. ACTION DISPLA Y From the Desktop Screen, press the Operational Button underneath “MENU” to enter the Main Menu. Notice [...]

14 W A TER HEA TER ST A TUS MENU This menu displays non adjustable operational information. Use the Up & Down Buttons to navigate to the bottom of this menu. T op of Menu Bottom of Menu Status Displays the current Operating State of the control system. IE: Heating, Standby , Fault. Elements On # Displays the number of heating elements the contr[...]

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. Current Time Seven Day 24 hr clock. Use [...]

16 ECONOMY MODE SETTINGS Setpoint Adjustment V alue ACTION DISPLA Y 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)[...]

17 ECONOMY MODE SETTINGS Time Clock Settings ACTION DISPLA Y From the Desktop Screen navigate to the Economy Mode Setup menu. Use the Up/Down buttons to select (highlight in black) Current T ime sub menu. Press the Operational Button underneath “CHANGE” to enter the Current T ime sub menu. Use the Up/Down buttons to select the “Weekday” set[...]

18 ECONOMY MODE SETTINGS Daily Operating Mode Settings ACTION DISPLA Y 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 ?[...]

19 ALARM OUTPUT SETUP MENU Pe rmi ts user to set th e co ndi ti on (fro m a li st of op tio ns ) for whe n th e CC B’ s inte gra l a lar m o utp ut rel ay wil l b e e ner giz ed . Alar m r ela y co nne cti ons ( co mmo n, no rm all y ope n, n orm all y cl ose d) ar e lo cat ed on th e J3 ter min al stri p on the CCB - see wiri ng di agr am s. A l[...]

20 Bottom of Menu Elapsed Time T otal accumulated time the control system (water heater) has been energized. T otal Heating Time T otal accumulated time the control system has been in the heating mode. IE: any heating elements have been energized. Element # Cycles T otal accumulated count of heating cycles for each heating element. Element # On Tim[...]

21 RESTORE F ACTOR Y DEF AUL TS 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 DISPLA Y From the Main Menu [...]

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 . NOT [...]

NOTES[...]

500 T ennessee 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.[...]