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Summary of Contents for STIEBEL ELTRON EVS15
- Page 1 Service Manual EVS15, EVS30, EVS50, EVS80, EVS100, EVS150 Author: Mr. Pornpawit Pumyaem Date: 24 June 2016 Revision: version 1 ~ 1 ~...
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Page 2: Warning
Warning Warning: This service manual is suitable for qualified Technician only. Warning: Disconnect power supply before open cover. ~ 2 ~... -
Page 3: Table Of Contents
Table of Content Warning…………………………………………………………………………………………………………………………..…………………2 General Product information……………………………………………………………………………………………..………………4 Technical Data……………………………………………………………………………………………………………..…………………….5 Wiring Diagram………………………………………………………………………………………………………..………………………..6 Troubleshooting…………………………………………………………………………………..…………………………………………….7 Cause analysis………………………………………………………………………………..…………………………………………………..8 1.Heating Elements Checking….…………………………………..…………………………………………………………8 2.Thermostat Checking…………………………………………..……………………………………………………………..9 3.Thermo cut out Checking………………………………………………………………………………………………….10 4.Anode Checking………………………………………………………………………………………………………………..11 5.System Confirm……………………………………………………………….……………………………………….………12 ~ 3 ~... -
Page 4: General Product Information
General product information The EVS 15-150 unvented (pressurized) wall-mounted water heater can heat potable water up to about EVS 15-150 = 75°C to suit demand and supply a number of draw-off points. The water content is automatically heated to the preset temperature. The device is adjusted at the works to 75°C. ~ 4 ~... -
Page 5: Technical Data
Technical data Model EVS15 EVS30 EVS50 EVS80 EVS100 EVS150 Close Type 0.7 Mpa (7 bar) Outlet pressure G 1/2" Water Connector 1/N/PE AC 220-240V Power Supply 50-60 Hz Rated frequency 220 V 1.63 2.18 230 V 1.78 2.38 240 V 2.5-4... -
Page 6: Wiring Diagram
Wiring Diagram A = Heating element B = Thermostat C = Thermal Cut - Out (TCO) ~ 6 ~... -
Page 7: Troubleshooting
Troubleshooting Problem & Condition Cause Correction - No power supply to unit - Check breaker - Power line loose at contact - Check connection points and fix Power lamp not ”ON” points And water not hot - Reset Thermal cut out - Thermal cut-out (TCO) - Check Thermostat Power lamp "ON"... -
Page 8: Cause Analysis
Cause Analysis 1. Heating Elements Checking Definition: Heating element is a metal coil that heats up to high temperatures when electricity is applied. - Disconnect cables to the elements. - Set Multi meter to Ohm range "Ω" or " ) “and check on poles. Pole Pole 1 Pole 2... -
Page 9: Thermostat Checking
2.Thermostat Checking Definition: A thermostat is a component which senses the temperature of a system so that the system's temperature is maintained near a desired set point. - Disconnect cables as in the picture. - Set Multi meter to Ohm range "Ω" or " ) "... -
Page 10: Thermo Cut Out Checking
Thermo cut-out Checking Definition: The thermal cut out is a sensor with a closed circuit (NC). It will automatically cut out power system when the water in tank up to . To check the thermal cut out, follow the steps below. - Disconnect cables as in the picture. -
Page 11: Anode Checking
4.Anode Checking Magnesium Anode Definition: Magnesium Anode is insulate metal corrosion rust and slag. - Disconnect cables as in the picture. - Remove Heating element set and check as shown in the pictures. Anode EVS 15-150 A: New Anode B: Old Anode Check Result Cause... -
Page 12: System Confirm
. System Confirm Ensure that you have tightened all the screws back into their original positions. This final test must be performed after repairing the unit. If all steps below are working correctly the unit can be returned to the end user. 1. - Page 13 ~ 13 ~...
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