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MicroHeat 1-10 CFEWH SERIES, Руководство по установке и эксплуатации

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CFEWH SERIES 1-10 /20 | INSTALLATION Manual © February 2021   MicroHeat Technologies Pty LTD 

 

Page 

3

 

of 

23

 

Introduction - CFEWH 

 

This Installation Manual covers the Premium models of the MicroHeat Continuous Flow Electric Water Heater [CFEWH] 
SERIES 1-10 and SERIES 1-20. 

 

   

VOLTAGE 

 

The CFEWH is Single Phase 240VAC LIVE-NEUTRAL/GROUND. 

 

Single Unit install 

–

 CFEWH SERIES 1-10 

 

 

 

          

Tandem unit install 

–

 CFEWH Series 1-20 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Single unit 

Premium CFEWH

 

CFEWH SERIES 1-10P

 

 

The Exterior Cover 

includes a display 

showing Output Water 
Temperature and Flow 

Rate 

 

Temperature settable 

factory models from 20°C 

up to 50°C or 60°C 

 

 

SAFETY WARNING

 

Please ensure you read through the Installation Checklist on Page 5 before commencing the 
installation of any CFEWH unit.   
This equipment works on 240 VAC, to avoid electric shock, this equipment must be opened 
and installed by a qualified electrician or plumber.

 

Tandem CFEWH installation 

Premium CFEWH

 

+ Premium CFEWH 

CFEWH SERIES 1-20

 

 

The Exterior Cover 

includes a display 

showing Output Water 

Temperature and Flow Rate 

 

Temperature settable factory models from 

20°C up to 50°C or 60°C 

 

Содержание 1-10 CFEWH SERIES

Страница 1: ...Continuous Flow Electric Water Heater www microheat com au INSTALLATION OPERATION MANUAL CFEWH SERIES 1 10 1 20 Single Phase Licence No AS 3498 WM 022136 AS NZS 60335 2 35 A 13670EA N29465 ...

Страница 2: ...de 5 CFEWH Installation Options 7 CFEWH Specifications 8 CFEWH Installation Procedure 9 CFEWH Mounting Installation 10 CFEWH Plumbing Electrical Installation 11 CFEWH Electrical Installation 12 Maximum Electrical Demand Calculations 13 Preparation for use 14 CFEWH Operation 15 Diagnostics and Error Descriptions 17 Dimensions 19 MicroHeat Warranty 20 MicroHeat Contact Details 21 CFEWH Mounting Templ...

Страница 3: ...e Exterior Cover includes a display showing Output Water Temperature and Flow Rate Temperature settable factory models from 20 C up to 50 C or 60 C SAFETY WARNING Please ensure you read through the Installation Checklist on Page 5 before commencing the installation of any CFEWH unit This equipment works on 240 VAC to avoid electric shock this equipment must be opened and installed by a qualified e...

Страница 4: ...ter reticulation energy losses significantly reduced Virtually maintenance free no scaling or element burn out Electric Instantaneous Water Heater EIWH vs Continuous Flow Electric Water Heater CFEWH HOT WATER SERVICE EIWH CFEWH Electrical Supply Single Phase Single Phase Optimised Energy NO YES Switch on Flow Rate 2 6LPM 1 5LPM Optimised TANDEM Capability NO YES Optimised Energy Optimised energy i...

Страница 5: ...1 MPa 10 bar 150 PSI Ambient Temperature The unit is intended for internal installation and should not be installed in an environment where there is a possibility of the ambient temperature dropping below 5 C Water Resistivity To ensure optimal operation the resistivity of the incoming cold water should not be less than 1 25kΩ cm and should not be greater than 12 5kΩ cm If the unit is operated wit...

Страница 6: ...ot included in the packaging 2 CFEWH Top Cover 13 CFEWH Inlet Filter 3 CFEWH Heat Sink 14 PCB Terminal Block 4 CFEWH Flow Rate Sensor 15 Electric Mains Supply Cable Gland 5 CFEWH Temperature Sensor Receptacle Cable and Plug Assembly 16 RED GREEN LED CFEWH GREEN Ready RED Error 6 CFEWH BSP Inlet Water Connection 17 Flow Rate Temperature Setting Display 7 CFEWH BSP Outlet Water Connection 18 Extensi...

Страница 7: ...mer arrestor must be mounted at the outlet of the CFEWH to reduce the water hammer effect during the automatic turning off of the water inlet valve of these appliances Please note that the location and installation of the unit is not limited to the options shown here The CFEWH should preferably be installed in a vertical position on an internal wall or in an internal cupboard or space IMPORTANT Wh...

Страница 8: ...essure 10 bar 1 MPa Minimum operating pressure 1 5 bar 0 15 MPa Dimensions Height 295mm x Width 210 50mm x Depth 125mm Without Extension Cover Heating Method Optimised Direct Energy Transfer Full digitally controlled water heating Nominal capacity ml 382 ml 2 x 382 ml Standards Water Regulation AS NZS 3498 AS NZS 4020 AS NZS 3500 Electrical Safety AS NZS 60335 2 35 IEC 60335 2 35 EMC CE C Tick In ...

Страница 9: ...e 5 Ensure the Circuit Breaker and the Isolation Switch if installed supplying the 240VAC electrical mains to the CFEWH are turned OFF 6 Carefully replace the plug and cable connecting the Display PCB LED indicator to the PCBA 7 Connect the Water Pressure Limiting Valve 5 0 bar 72 5 psi 500 kpa and Shutoff Valve 8 Connect the water supply via the shutoff valve and pressure limiting valve to the un...

Страница 10: ... WARRANTY The mounting method used to fix the unit to a vertical wall must be capable of continuously supporting a minimum weight of 10kg When mounting the unit onto a rough surface ie a brick wall or similar a backing board should be mounted to the wall first The unit can then be mounted onto the backing board This will allow the Exterior Cover 10 to be properly fitted to the unit Mounting Screw Hol...

Страница 11: ...ied as result of water hammer and or other circumstances does not stress the appliance unduly The inline water pressure limiting valve must be rated at 5 0 bar 72 5 psi 500 kpa The shutoff valve installed must not be a non return type valve If the water heater is supplying a Dishwasher Washing machine a water hammer arrestor must be installed on the outlet side of the water heater Tandem CFEWH Ser...

Страница 12: ... connected to the Terminal Block together with the electric mains earth connection PCBA reset button Terminal Block Display PCB Printed Circuit Board Assembly PCBA IMPORTANT Live Neutral Ground LNG connection is polarity dependent Incorrect wiring connection will cause FC Earth Leakage Detection Error AS NZS 3000 2018 MICROHEAT CFEWH SERIES 1 COMPLIANT WITH AS NZS 60335 2 35 ELECTRICAL SAFETY RCD ...

Страница 13: ...y at full load or for long periods eg submains to a distribution board associated with numerous socket outlet circuits Under such conditions the circuit current is estimated using diversity factors and is often described as the after diversity maximum demand As stated in Clause 2 2 2 maximum demand current can be determined by one of four methods calculation assessment measurement or limitation Th...

Страница 14: ...ot required at start up STEP 1 Flush Flushing is required to clear the unit of plumbing debris that may have collected in the piping during installation This is done with the electric power supply turned off Flush water through the unit Flushing should be allowed to continue for 1 to 2 minutes After flushing remove the Inlet Filter 13 from the cold water inlet clean any debris due to installation ...

Страница 15: ... LPM CFEWH Premium Standard Model LED Indicator Light The LED indicator on the Exterior Cover indicates the operational status of the unit NOTE the Standard Model has no display only an LED Indicator Light LED indicator not illuminated No electricity is being supplied to the unit Slow flashing GREEN Standby mode waiting for water to be turned on Fast flashing GREEN The unit is operating and water ...

Страница 16: ...l flash RED continuously and an Error Code will be displayed This number should be given to MicroHeat when the service call is made For a list of error codes refer page 17 Normal operation cannot be resumed by switching the appliance OFF and ON Manual Intervention Procedure is required Optimised Energy Usage The table below shows the flow rate in litres per minute LPM related to deliverable output...

Страница 17: ...ity too low No error ORANGE In Priming Mode No error ORANGE Operating temperature too low a4 Blocking Resolving Flashing RED Operating temperature too high a5 Blocking Resolving Flashing RED Outlet water temperature 5 C above set point a6 Blocking Resolving Flashing RED Inlet cold water input sensor open circuit a7 Blocking Resolving Flashing RED Inlet cold water input sensor short circuit a8 Bloc...

Страница 18: ...f does not require any regular maintenance However to ensure consistent water flow it is recommended to periodically remove scale and dirt that may build up in the Inlet Filter 13 the faucet or in the shower head IMPORTANT If the RED LED remains either flashing or illuminated an error condition is still present There are NO user serviceable parts inside the housing so no further action can be taken ...

Страница 19: ...CFEWH SERIES 1 10 20 INSTALLATION Manual February 2021 MicroHeat Technologies Pty LTD Page 19 of 23 Dimensions NOTES ...

Страница 20: ...must be sized to supply the hot water in accordance with the guidelines in the MicroHeat CFEWH literature PROCEDURE FOR HONOURING WARRANTY 1 To initiate a claim for a warranty against defects the consumer shall contact MicroHeat Technologies Pty Ltd 20 Pickering Road MULGRAVE VIC 3170 AUSTRALIA Phone 61 1300 981 325 2 The process will then follow the MicroHeat Product Warranty Flow Chart to assess...

Страница 21: ...Heat Technologies Pty LTD Page 21 of 23 MicroHeat Contact Details For Technical Support before and after Installation Phone 1300 981 325 Email info microheat com au MicroHeat Technologies Pty Ltd 20 Pickering Road MULGRAVE VIC 3170 AUSTRALIA www microheat com au ...

Страница 22: ...CFEWH SERIES 1 10 20 INSTALLATION Manual February 2021 MicroHeat Technologies Pty LTD Page 22 of 23 PAGE LEFT INTENTIONALLY BLANK ...

Страница 23: ...CFEWH SERIES 1 10 20 INSTALLATION Manual February 2021 MicroHeat Technologies Pty LTD Page 23 of 23 CFEWH Mounting Template 8MM X 65MM Minimum length SCREWS UP CFEWH MOUNTING TEMPLATE ...

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