ECR International 550003792 Installation, Operation & Maintenance Manual Download Page 1

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Domestic Hot Water Module

# 550003792

INSTALLATION, OPERATION

& MAINTENANCE MANUAL

ECR International Inc.

2201 Dwyer Avenue, Utica, NY 13501

Tel. 800 253 7900

www.ecrinternational.com

PN 240012960 REV. F [09/15/2020]

Summary of Contents for 550003792

Page 1: ...mestic Hot Water Module 550003792 INSTALLATION OPERATION MAINTENANCE MANUAL ECR International Inc 2201 Dwyer Avenue Utica NY 13501 Tel 800 253 7900 www ecrinternational com PN 240012960 REV F 09 15 20...

Page 2: ...mentioned groups to warm or hot water as they can be badly burned in exposure times less than half of the time for an adult FOR YOUR SAFETY READ BEFORE INSTALLATION AND OPERATION CAUTION Indicates a h...

Page 3: ...te and therefore hazardous Make sure the manual always accompanies the appliance should it be sold to a new owner and or installer The installation and maintenance shall be performed by qualified tech...

Page 4: ...ion 2 3 Specifications 5 Main Components 7 Installation 7 Hydraulic Connections 9 Electrical Connections 12 Start Up 12 Operation and Use 13 User Interface 15 Mechanical Drawings 18 Internal Wiring 19...

Page 5: ...a circulator electric pump a flow meter a temperature sensor and an electronic control regulator REC The boiler must include low limit capability to continuously maintain boiler water temperature The...

Page 6: ...ac 10 1 ph 2 A Frequency 60 Hz Power Consumption 96 W Fuse Dimensions mm 250V 4A Fast 5x20 Protection level IP 20 Pump Wilo Star 21U15 130 Actuator 24 V stepper Sensor NTC 10 k Flow switch trip flow r...

Page 7: ...rous parts during installation and maintenance The appliance must be connected to an independent circuit breaker Turn off the power supply before working on the appliance Do not use devices with timed...

Page 8: ...ors driven into sheetrock only Mounting Water Quality If the CH water i e boiler water is very hard or full of impurities it must be adequately filtered and treated otherwise damage and or malfunction...

Page 9: ...e valves not shown Refer to all local codes and jurisdictional requirements for installation of anti scald valves relief valves and or domestic hot water expansion tanks The two way valve in the DHW m...

Page 10: ...10 PN 240012960 REV F 09 15 2020 Charts below show the pressure drop through the DHW circuit of the DHW module...

Page 11: ...ify air purging a purge valve may be installed in the CH circuit In order to purge air the DHW module must be powered and have domestic water flowing in order to open the two way valve and allow CH fl...

Page 12: ...T UP Before starting the DHW module visually inspect the tightness of the water connections and the electrical wiring On completion of the checks turn on the power to the appliance and check for any e...

Page 13: ...etected by the flow meter F which sends an electrical signal to the REC in order to switch on the pump P and control the two way valve V The desired DHW temperature setpoint is programmed by the user...

Page 14: ...locking daily Activate two way valve anti blocking daily Temperature set range 108 140 F 42 60 C Control band T1 Temperature 5 4 F 3 C Regulator automatic operations At power up the REC checks the ele...

Page 15: ...fixed green 115 Vac power present Fahrenheit Display ON flashing green 115 Vac power present Celsius Display DHW fixed yellow domestic hot water request DHW flashing yellow dip switch 5 set incorrectl...

Page 16: ...he REC after the initial operations shows two horizontal lines flashing for few seconds and then the firmware fault code 79 with the fault led flashing Dip Switch 4 Dip switch 4 enables the LCD temper...

Page 17: ...y restoring the correct functionality of the sensor Wrong configuration of the REC firmware code 79 on the LCD display If the dip switches 1 2 3 are in the wrong position the factory configuration is...

Page 18: ...AL DRAWINGS 4 33 110 mm 3 74 95 mm 3 74 95 mm 3 94 100 mm 7 87 200 mm DHW OUTLET CH INLET 1 26 32 mm 1 26 32 mm 9 29 236 mm 3 34 85 mm 11 65 296 mm 7 87 200 mm 3 94 100 mm CH OUTLET DHW INLET 3 74 95...

Page 19: ...om mains power supply by unplugging the unit or using the circuit breaker Make sure the power supply can not be accidentally switched on during maintenance Make sure all parts of the appliance are col...

Page 20: ...or cable by pulling out the Lumberg connector Insert the new flow sensor SF taking care to position it correctly see figure Reconnect the cable Replacing the Temperature Sensor Disconnect the temperat...

Page 21: ...er motor M Sonceboz 7217R901 102000194 Motor clip C 240012947 Temperature sensor ST TP01AH1WQL 240012948 Flow meter CF 240012949 Flow sensor SF 240012950 Electronic Control Regulator REC Includes Wiri...

Page 22: ...blocked Replace circulator Faulty two way valve Replace two way valve Faulty stepper motor Replace stepper motor Stepper motor disconnected Insert connector Faulty temperature sensor Replace sensor He...

Page 23: ...ice of the failed Braze Plate Heat Exchanger or component LIMITATIONS EXCLUSIONS APPLIES TO ALL WARRANTIES 1 Under no circumstances will ECR be responsible for any other costs associated with rectifyi...

Page 24: ...erable MISCELLANEOUS The Magnuson Moss Warranty Act applies to consumer sales as contrasted with commercial sales A consumer sale is one to a buyer for personal family or household purposes and not fo...