Enerflow ERHP Series User Manual
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Enerflow ERHP Series User Manual

Residential heat pumps
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H E A
T
P U M P S
USER MANUAL
RESIDENTIAL HEAT PUMPS
ERHP SERIES
PLEASE READ THIS GUIDE CAREFULLY BEFORE OPERATING YOUR HEAT PUMP.
FOR ENQUIRIES, PLEASE CONTACT YOUR CERTIFIED INSTALLER OR SERVICE CENTRE .
GENERATION 7
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  • Page 1 H E A P U M P S USER MANUAL RESIDENTIAL HEAT PUMPS ERHP SERIES PLEASE READ THIS GUIDE CAREFULLY BEFORE OPERATING YOUR HEAT PUMP. FOR ENQUIRIES, PLEASE CONTACT YOUR CERTIFIED INSTALLER OR SERVICE CENTRE . GENERATION 7 Proud product of...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS SAFETY CAUTIONS AND WARNINGS HEAT PUMP CONTROLLER FUNCTIONS Controller and Button Functions Heat Pump Modes Setting the Time & Day Timer Function ELEMENT BACK-UP LEGIONELLA DISINFECTION CYCLE MICRO CIRCULATION FUNCTION HEAT PUMP OPERATING PARAMETERS Changing Parameters MAINTENANCE AND SERVICING Self-maintenance by the user...

  • Page 4: Safety Cautions And Warnings

    SAFETY CAUTIONS & WARNINGS It is the responsibility of the user to operate and use the heat pump according to the instructions detailed in this guide. The user shall ensure that the health and safety of any other person in the area or site near where the heat pump is installed is not endangered by his conduct or activities when operating the heat pump.

  • Page 5: Heat Pump Controller Functions

    HEAT PUMP CONTROLLER FUNCTIONS CONTROLLER AND BUTTON FUNCTIONS Your Enerflow heat pump makes use of an intelligent LCD controller. This controller will inform the owner of any safety codes disabling the heat pump. The controller can also be used to change certain parameters on the heat pump, such as: Changing the desired water temperature;...

  • Page 6: Heat Pump Modes

    2.2 HEAT PUMP MODES Once the system is switched on at the main power distribution board (DB), the intelligent controller will start up and display the initialization phase for a few seconds after which the time will be displayed as 00:00.

  • Page 7: Setting The Time & Day

    2.3 SETTING THE TIME & DAY The Enerflow heat pump has built in timers that can increase the efficiency of the heat pump if set correctly. The timers will only function as intended if the day and time settings were setup correctly. The following steps will help you to set the Day and Time settings required for the timers to function as intended.
  • Page 8 Press the button to acknowledge the Hour setting and continue to the Minutes setting. (The Minutes and the “1 OFF” sign will flash) Make use of the buttons to set the Minutes. (Set to the shutdown Minutes) Press the button to acknowledge the Minutes setting and continue to the “2 ON”...

  • Page 9: Element Back-Up

    (such as too low water flow caused by a dirty strainer). During such an event the Enerflow heat pump will display the corresponding Error Code (see Trouble Shooting section of this guide) and an audible “Beep” will be heard to notify the user of a fault.

  • Page 10: Legionella Disinfection Cycle

    LEGIONELLA DISINFECTION CYCLE The Enerflow heat pump has the ability to disinfect your geyser once a week. Legionella* bacteria can live in water at temperatures below 50°C. This bacteria is particularly harmful and even deadly to individuals with an impaired immune system such as elderly citizens and young children. The Enerflow heat pump heats the water to 55°C on its factory default setting.

  • Page 11: Micro Circulation Function

    MICRO CIRCULATION FUNCTION Your Enerflow heat pump has the functionality of heating a central, ring-main water distribution pipeline. This function is used to ensure that hot water is supplied throughout the residence as an instant hot- water-on-tap solution. The installer will ensure that the commissioning valve on the return line is set to an approximate 10% bypass (i.e.

  • Page 12: Heat Pump Operating Parameters

    HEAT PUMP OPERATING PARAMETERS The heat pump operation is governed by 22 input parameters. Some of the operating parameters may be adjusted by the user if required. The remainder of the parameters are set by the qualified installer and should not be changed. The function and range of all the parameters are explained in the following table: PARAMETER DESCRIPTION RANGE...
  • Page 13 PARAMETER DESCRIPTION RANGE DEFAULT REMARK Beeper (Off = 0; On = 1) 0 / 1 Adjustable Disinfecting cycle (Off = 0; On = 1) 0 / 1 Do not change Geyser temperature -10 ~ 10°C 3°C Do not change measurement probe offset Automatic geyser temperature 0 / 1 Do not change...

  • Page 14: Changing Parameters

    6.1 CHANGING PARAMETERS To adjust or change the parameter settings, follow the steps below: If the target temperature needs to be changed, parameter 0 can be modified as explained below or alternatively the user can simply press the buttons. Target water Current water temperature temperature...

  • Page 15: Maintenance And Servicing

    MAINTENANCE & SERVICING The following maintenance should be done by the user at least quarterly. In areas where excessive debris is present in the water (i.e. at construction sites or where repairs were done on municipal water lines) more frequent maintenance may be required. Before undertaking any maintenance on the heat pump, engage the Standby Mode as indicated in section 2.2 Heat Pump Modes.

  • Page 16: Other General Maintenance Considerations

    6 of this guide. ANNUAL SERVICE PERFORMED BY THE INSTALLER Although your Enerflow heat pump is a self-contained and reliable means of providing eco-friendly hot water, an annual service is required to ensure efficient performance and that warranty conditions are met.

  • Page 17: Heat Pump Self-Protection Codes

    7.3 HEAT PUMP SELF-PROTECTION CODES NOTE: Please make use of the following table to do troubleshooting if an error or fault occurs. If the problem persists shut down the system and switch off the main power supply or activate the crossover switch as described in this guide.
  • Page 18 FAULT / ERROR POSSIBLE CAUSE RECOMMENDED ACTION / REMARK Contact the installer. Water level sensor failure. Overload protection. Contact the installer. In case of any of these failures the Installer Heat pump return water must be contacted to check the connections temperature sensor failure.
  • Page 19 PLEASE NOTE THE FOLLOWING: Outdoor temperature, water inlet temperature and parameter settings may affect the performance and power consumption of the heat pump unit. Ensure that the heat pump air flow is not blocked. If the ambient temperature is too high, the fan may stop working temporarily in order to protect the system.

  • Page 20: Improve Your Energy Savings

    HOW IT WORKS This section describes in detail how a heat pump works. The Enerflow heat pump uses an air-source- vapour-compression-cycle to transfer heat from the atmosphere to the water stored inside a tank.

  • Page 21: How To Improve The Energy Efficiency

    The graph below depicts a typical Enerflow heat pump’s saving at a different atmospheric air- and inlet water temperatures. In this picture it can be clearly seen that the heat pump will save more energy, and therefore more money, at higher outside air temperatures.

  • Page 22: Suggested Timer Settings

    Parameter 1) the heat pump will start heating the water again. The Enerflow heat pump may heat the geyser faster than an electrical element in outside air temperatures higher than 18°C, but may take longer when outside air temperatures are below 18°C.

  • Page 23: Service Record

    This service record of the required annual service, should be kept in a safe place. The client may be required to present it in the event of a warranty claim. Warranty conditions can be viewed at www.enerflow.co.za Once this service is complete and the system is tested the installer shall ensure that the service record is completed in full and legibly.

  • Page 24: Installation Handover Certificate

    I (the undersigned) acknowledge that the installation was completed and tested as fully functional. I confirm that the installer has shown me the workings and operation of my Enerflow heat pump. I also understand the operation and safety requirements for this heat pump unit.

  • Page 25: Performance Specifications

    PERFORMANCE SPECIFICATIONS Please visit www.enerflow.co.za for the performance specifications of your specific heat pump model.
  • Page 26 Get in General Queries M-Tech Industrial (Pty) Ltd Totius Park Office Block E/F info@enerflow.co.za 24 Totius Street touch Potchefstroom, 2531 Maintenance & Support South Africa heatpump@enerflow.co.za S 26° 42.398’ E 27° 6.161’ www.enerflow.co.za www.mtechindustrial.com +27 (0)18 297 0326 +27 (0)18 297 0327...

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