TANKLESS CE Series Operation And Installation
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TANKLESS CE Series Operation And Installation

Electric water heaters
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OPERATION AND INSTALLATION
ELECTRONICALLY CONTROLLED INSTANTANEOUS WATER HEATER
» CE/CES/CERO 12 KW
» CE/CES/CERO 15 KW
» CE/CES/CERO 18 KW
» CE/CES/CERO 24 KW
» CE/CES/CERO 27 KW
» CE/CES/CERO 36 KW
» CE/CES/CERO 48 KW
» CE/CES/CERO 54 KW
» CE/CES
60 KW
» CE/CES/CERO 72 KW
» CE/CES/CERO 81 KW
» CE/CES/CERO 90 KW
» CE/CES/CERO 108 KW
» CE/CES
120 KW
» CE/CES/CERO 144 KW
Conforms to ANSI/UL Std. 499
Certified to CAN/CSA Std. C22.2 No.88

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Do you have a question about the CE Series and is the answer not in the manual?

Questions and answers

Larry Schaeffer
March 29, 2025

What voltage is needed for my CEC power star

1
1 comments:
Mr. Anderson
March 29, 2025

The TANKLESS CE Series requires 208 V, 240 V, 277 V, or 288 V, depending on the configuration.

This answer is automatically generated

0
Jeff Stockman
July 5, 2025

H W S is intermittently emitting a 3 beep sound.

0

Summary of Contents for TANKLESS CE Series

  • Page 1 OPERATION AND INSTALLATION ELECTRONICALLY CONTROLLED INSTANTANEOUS WATER HEATER » CE/CES/CERO 12 KW » CE/CES/CERO 15 KW » CE/CES/CERO 18 KW » CE/CES/CERO 24 KW » CE/CES/CERO 27 KW » CE/CES/CERO 36 KW » CE/CES/CERO 48 KW » CE/CES/CERO 54 KW »...

  • Page 2: Table Of Contents

    Maintenance ���������������������������������������������������� 7 Technical data �������������������������������������������������� 8 Safety information 11.1 Technical data - CE series ����������������������������������������� 8 11.2 Technical data - CES series ��������������������������������������� 9 1.1.1 Structure of safety information 11.3 Technical data - CERO series ������������������������������������10 11.4...

  • Page 3: Operation

    OPERATION SAfETy 1.1.3 Keywords Damage to the water heater and the environment The water heater must be installed by a licensed electrician KEyWORD Description and plumber. The installation must comply with all national, DANGER If this information is not observed, it will result in serious state and local plumbing and electric codes.

  • Page 4: Register Your Product

    OPERATION REgISTER yOUR PRODUCT Register your product You must register this product within 90 days of pur- chase on our web site in order to activate the standard warranty. Go to our web site at www.stiebel-eltron-usa.com and click on register your product.

  • Page 5: Troubleshooting

    OPERATION TROUBLEShOOTINg Fault table possibility of dry firing. Each element circuit is individually fused. The fuses are located in the fuse box (7). Symptom Possible cause Action In order to avoid latent heat buildup, the unit has an electronically No hot water (A) Circuit breakers off Turn circuit breakers on controlled delay timer that delays the activation of the heating ele-...

  • Page 6: Mounting The Water Heater

    INSTALLATION MOUNTINg ThE WATER hEATER INSTALLATION 6.1.2 Mounting screw positions Mounting the water heater CAUTION: Injury Hot water outlet pipes leaving unit can be hot to the touch. Insulation must be used for hot water pipes below 36˝ (0.9 m) due to burn risk to children. NOTICE: This unit should not be installed in a location where it may be exposed to temperatures less than...

  • Page 7: Leakage Check

    INSTALLATION ELECTRICAL CONNECTION Leakage check f Connect the live wires to the contactor (B). Once all plumbing work is done, check for leaks. If necessary, take f Pull the ground wire into the ground terminal (C). corrective action. Terminal block torque Electrical connection To tighten wire to the terminal block, use the proper torque value according to NEC:...

  • Page 8: Technical Data

    INSTALLATION TEChNICAL DATA 11. Technical data 11.1 Technical data - CE series Item Number Voltage Full Load 3P Breaker No. of Pipe Standard 3-phase Amp Draw Size (A) Elements Size Enclosure Size (inches) Excluding fittings (W x H x D in inches)

  • Page 9: Technical Data - Ces Series

    INSTALLATION TEChNICAL DATA 11.2 Technical data - CES series Item Number Voltage Full Load 3P Breaker No. of Pipe Standard 3-phase Amp Draw Size (A) Elements Size Enclosure Size (inches) Excluding fittings (W x H x D in inches) CES 12 KW CES-012-208D 11.27 31.27...

  • Page 10: Technical Data - Cero Series

    INSTALLATION TEChNICAL DATA 11.3 Technical data - CERO series Item Number Voltage Full Load 3P Breaker No. of Pipe Standard 3-phase Amp Draw Size (A) Elements Size Enclosure Size (inches) Excluding fittings (W x H x D in inches) CERO 12 KW CERO-012-208D 208 10.15 28.17...

  • Page 11: Dimension Drawings

    INSTALLATION TEChNICAL DATA 11.4 Dimension drawings 11.4.1 CE/CES/CERO 12–18, NEMA 3 enclosure Hot outlet Cold inlet Capacity No. of Elements 12–18 ˝ ˝ ˝ ˝ 2˝ 11.4.2 CE/CES/CERO 12–36, NEMA 4/4X enclosure Hot outlet Cold inlet Capacity No. of Elements 12–18 ˝...
  • Page 12 INSTALLATION TEChNICAL DATA 11.4.3 CE/CES/CERO 24–36, NEMA 3 enclosure Hot outlet Cold inlet Capacity No. of Elements 24–36 ˝ 9 1/4˝ ˝ ˝ 3˝ 11.4.4 CE/CES/CERO 48–72, NEMA 3 enclosure Hot outlet Cold inlet Capacity No. of Elements 48–72 ˝ 9 1/4˝...
  • Page 13 INSTALLATION TEChNICAL DATA 11.4.5 CE/CES/CERO 81–144, NEMA 3 enclosure / CE/CES/CERO 48–144, NEMA 4/4X enclosure Hot outlet Cold inlet Capacity No. of Elements 48–72 ˝ ˝ 24˝ 48˝ 4˝ ˝ ˝ 81–108 ˝ ˝ 24˝ 48˝ 4˝ 37 3/4˝ 32 1/4˝ 120–144 ˝...

  • Page 14: Wiring Diagrams

    INSTALLATION TEChNICAL DATA CE Wiring Diagram 11.5 Wiring diagrams 11.5.1 CE/CES/CERO 12–18, 208 V & 240 V Delta wiring diagram CE 12-18, 208 & 240 V Delta CE-12-18-208/240D This diagram is valid for: CE/CES/CERO 12 208/240 V, CE/CES/CERO 15 208/240 V, CE/CES/CERO 18 208/240 V This diagram is valid for CE 12 208 V, CE 15 208 V, CE 18 208 V, CE 12 240 V, CE 15 240 V, &...
  • Page 15 INSTALLATION TEChNICAL DATA CE Wiring Diagram 11.5.2 CE/CES/CERO 12–18 400 & 480 V Wye wiring diagram CE 12-18, 480 V Wye CE-12-18-480Y This diagram is valid for: CE/CES/CERO 12 400/480 V Wye, CE/CES/CERO 15 400/480 V Wye, & CE/CES/CERO 18 400/480 V Wye This diagram is valid for CE 12 480 V Wye, CE 15 480 V Wye, CE 18 480 V Wye.
  • Page 16 INSTALLATION TEChNICAL DATA CE Wiring Diagram 11.5.3 CE/CES/CERO 24–36, 208 V & 240 V Delta wiring diagram CE 24-36, 208 & 240 V Delta CE-24-36-208/240D This diagram is valid for: CE/CES/CERO 24 208/240 V, CE/CES/CERO 27 208/240 V, & CE/CES/CERO 36 208/240 V This diagram is valid for CE 24 208 V, CE 27 208 V, CE 36 208 V, CE 24 240 V, CE 27 240 V, &...
  • Page 17 INSTALLATION TEChNICAL DATA CE Wiring Diagram 11.5.4 CE/CES/CERO 24–36, 400 V & 480 V Delta wiring diagram CE 24-36, 480 V Delta CE-24-36-480D This diagram is valid for: CE/CES/CERO 24 400/480 V, CE/CES 27 400/480 V, CERO 27 480 V, & CE/CES/CERO 36 400/480 V This diagram is valid for CE 24 480 V, CE 27 480 V, &...
  • Page 18 INSTALLATION TEChNICAL DATA CE Wiring Diagram 11.5.5 CE/CES/CERO 24, CE/CES/CERO 36 575 V Delta wiring diagram CE 36, 575 V Delta CE-36-575D This diagram is valid for CE 36 575 V. This diagram is valid for: CE/CES/CERO 24 575 V, & CE/CES/CERO 36 575 V Approved: Wes Palmer 01/17/20 HX Flow Layout Delta Con guration...
  • Page 19 CE Wiring Diagram CE 48-72, 208 & 240 V Delta INSTALLATION This diagram is valid for CE 48 208 V, CE 54 208 V, CE TEChNICAL DATA Control board R1-R Thermistor Delay timer CE Wiring Diagram 11.5.6 CE/CES/CERO 48–72, 208 V & 240 V Delta wiring diagram F1-F12 Fuse T1-T...
  • Page 20 INSTALLATION TEChNICAL DATA CE Wiring Diagram CE Wiring Diagram 11.5.7 CE/CES/CERO 48–72, 400 V & 480 V Delta wiring diagram CE 48-72, 480 V Delta CE 48-72, 480 V Delta CE-48-72-480D This diagram is valid for: CE/CES/CERO 48 400/480 V, CE/CES 54 400/480 V, CERO 54 480 V, CE/CES 60 400/480V, CE/CES 72 480 V, & CERO 72 400/480 V This diagram is valid for CE 48 480 V, CE 54 480 V, CE 60 480 V, &...
  • Page 21 INSTALLATION TEChNICAL DATA CE Wiring Diagram 11.5.8 CE/CES/CERO 48, CE/CES/CERO 72 575 V Delta wiring diagram CE 72, 575 V Delta CE-72-575D This diagram is valid for: CE/CES/CERO 48 575 V, CE/CES/CERO 72 575 V This diagram is valid for CE 72 575 V. Approved: Wes Palmer 01/17/20 CE Wiring Diagram CE 72, 575 V Delta...
  • Page 22 INSTALLATION TEChNICAL DATA CE Wiring Diagram 11.5.9 CE/CES/CERO 120, CE/CES/CERO 144 400 V & 480 V Delta wiring diagram (page 1) CE 108-144, 480 V Delta (Page 1) CE-108-144-480D This diagram is valid for: CE/CES/CERO 120 400/480 V, CE/CES/CERO 144 400/480 V This diagram is valid for CE 108 480 V, CE 120 480 V, &...
  • Page 23 INSTALLATION TEChNICAL DATA CE Wiring Diagram 11.5.10 CE/CES/CERO 120, CE/CES/CERO 144 400 V & 480 V Delta wiring diagram (page 2) CE 108-144, 480 V Delta (Page 2) This diagram is valid for: CE/CES/CERO 120 400/480 V, CE/CES/CERO 144 400/480 V This diagram is valid for CE 108 480 V, CE 120 480 V, &...
  • Page 24 INSTALLATION TEChNICAL DATA CE Wiring Diagram 11.5.11 CE/CES/CERO 144 575 V Delta wiring diagram (page 1) CE 144, 575 V Delta (Page 1) CE-144-575D This diagram is valid for: CE/CES/CERO 144 575 V This diagram is valid for CE 144 575 V. Approved: Wes Palmer 01/17/20 HX Flow Layout Element block 2...
  • Page 25 INSTALLATION TEChNICAL DATA CE Wiring Diagram 11.5.12 CE/CES/CERO 144 575 V Delta wiring diagram (page 2) CE 144, 575 V Delta (Page 2) This diagram is valid for: CE/CES/CERO 144 575 V This diagram is valid for CE 144 575 V. 17 West St., W.

  • Page 26: Ce/Ces/Cero Temperature Rise

    175 A 3P 575 V 144.2 144.8 150 A 3P Flow Rate vs Temp. Rise All Tankless Inc. water heaters can be plumbed 11.6 CE/CES/CERO Temperature rise individually or in manifold to create larger systems. Power Flow Rate Temperature Rise Output Gallons/Min.

  • Page 27: Spare Parts And Service Advice

    INSTALLATION SPARE PARTS AND SERVICE ADVICE 12. Spare parts and service advice DANGER: Electrocution Before proceeding with any installation, adjustment, alteration, or service of the appliance all circuit break- er, switches servicing the appliance must be turned off. Make sure that nobody can activate the breaker in the distribution panel during your service work on the ap- pliance.
  • Page 28 INSTALLATION SPARE PARTS AND SERVICE ADVICE f Turn on the power supply. f Turn on the on/off power switch. Transformer f Disconnect the heater from the power supply. f Check for continuity on the fuse FLM1-1/4 to be sure the problem is not just a transformer fuse. f Replace wire from the transformer distribution block.

  • Page 29: Warranty

    WARRANTY | ENVIRONMENT AND RECYCLING TANKLESS ELECTR IC COMMERCI AL WATER HEATERS All CF, CE, CES, & CERO Model s 13. Warranty LIMITED WARRANT Y Subject to the terms and conditions set forth in this limited 3. installation of the Heater other than as directed by warranty, Stiebel Eltron, Inc.
  • Page 30 NOTES | CE CES CERO SERIES WWW.STIEBEL-ELTRON-USA.COM...
  • Page 31 NOTES WWW.STIEBEL-ELTRON-USA.COM CE CES CERO SERIES |...
  • Page 32 TANKLESS, Inc. A Stiebel Eltron Company 2060 Whitfield Park Ave. | Sarasota, FL 34243 Tel. 800.TANKLESS (800.826.5537) | Fax 941.755.6529 tanklessinc stiebel-eltron-usa.com STIEBEL ELTRON, Inc. 17 West Street | West Hatfield MA 01088 Tel. 413.247.3380 | Fax 413.247.3369 info stiebel-eltron-usa.com www.stiebel-eltron-usa.com...

This manual is also suitable for:

Ces seriesCero series

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