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Genvex VANVEX R + Manual

Domestic hot water heat pump
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MANUAL
OE04:956-1807
VANVEX R +
VANVEX RS +
Domestic hot water heat pump

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Summary of Contents for Genvex VANVEX R +

  • Page 1 MANUAL OE04:956-1807 VANVEX R + VANVEX RS + Domestic hot water heat pump...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 About the product .

  • Page 4: Introduction

    INTRODUCTION The aim of this manual is to give information, instructions and warnings on the heat pump water heater. The manual is to be used by installers and plumbers as well as by end users, since it contains important safety indications. The manual is a part of the heat pump water heater and it is to be conserved with care, since it contains important installation and maintenance instructions that can be use- ful to assure a long life time and an efficient operation.
  • Page 5 1.2. Technical data 1.2.1. General The heat pump water heater is composed of a water tank, a refrigerant circuit, a cabi- net and a display connected to a control board. The main scope of the appliance is to heat water stored in a tank. 1.2.2.
  • Page 6 1.2.3. Cooling circuit As depicted in Figure 1 and 2, the heat pump cycle can be divided in four main pro- cesses: compression (1-2), condensation (2-3), expansion (3-4), evaporation (4-1) described below. • At the suction of the compressor (1) the superheated gas refrigerant enters the compressor at low pressure.
  • Page 7 Note: The extensive use of the electric heater leads to higher electricity consumption and it may lead to high electricity bills. The operation with electric heater normally consumes 3 times more electricity than the operation with heat pump. The energy released to the condenser (2-3) is, in fact, the sum between the free energy extracted from the air in the evaporator (1-4) and the energy supplied to the compressor (2-1).
  • Page 8 R180G back Refrigerant circuit GQ1: Compressor GQ2: Fan RM1: Check valve EP1: Condenser EP2: Evaporator HZ1: Filter drier QN1: Solenoid valve QN2: Thermostatic expansion valve XL3: Service valve Water circuit XL1: Water outlet XL2: Water inlet XL4*: Coil top XL5*: Coil bottom XL6: Air outlet XL7: Air inlet XL8: Condensate outlet...
  • Page 9 5R180G front Sensors BT1: Air inlet temperature BT2: Evaporator temperature BT3: Tank water temperature BT4*: Additional temperature BT5*: Additional temperature (not included) BP1: Pressostat Electric components AA1: Main printed circuit board AA2: Display circuit board WF1: Modbus port GC1*: Solar 0-3V/10V QA1*: SG-ready port GP1*: Additional supply to pump or damper...
  • Page 10 1.2.6. Main Technical Data The main technical data are collected in the following figures and table. Figure 6 – Dimensional data Parameter Unit 190L 260L Dimensional data A – Height 1610 1960 F – Diameter G - Diameter H – Max diameter Height required for installation 1700 2040...
  • Page 11 Parameter Unit 190L 260L Electrical data Power supply V/Hz 230/50 Fuse 13 (10) Electric connections L1, N, G Electric heater power 1500 Cooling and water circuit Refrigerant type R134a Refrigerant quantity 1200 1280 1430 CO2 equivalent Cooling circuit Hermetically sealed Protection rating IP21 Water connections - Enameled...
  • Page 12 Parameter Unit 190L 260L Airflow Nominal air flow rate (variable range) 450 (0-800) Maximum fan power consumption Max external static pressure G - Air duct connections Minimum volume of room installation Operating limits Max air temperature °C Min air temperature °C Max water temperature °C...

  • Page 13: Transport, Handling And Delivery

    2. TRANSPORT, HANDLING AND DELIVERY Immediately upon receipt, the domestic hot water heater pump must be examined to make sure that it is intact and undamaged. If not, the shipping company must be informed immediately. The recipient has the responsibility for all the shipments unless otherwise agreed.
  • Page 14 2.5. Transport with Trailer The unit must only be transported on the associated transport frame. This also applies to transport on stairs. The unit must be secured against sliding on the trailer. Water connections etc. shall not be used for transportation purposes. It should be made sure that the trailer does not damage the cabinet or the various connections.

  • Page 15: Positioning

    3. POSITIONING The installation site should be equipped with a power supply of 220-240V and 50 Hz. The power supply and the hydraulic system must comply with the local regulations. The unit should be placed vertically, with a maximum inclination of 1°. The unit must be well balanced and stable on the ground surface.
  • Page 16 3.1. Set-up sequence Once the unit is placed in a room with characteristics as specified in the previous paragraph, then it can be prepared following the sequence described below: 1. Remove the packaging from the pallet. 2. Remove the transport fittings from the pallet. 3.

  • Page 17: Water Circuit

    4. WATER CIRCUIT The water circuit must be installed in accordance with local norms and standards. The water used must be drinking water. Material compatibility in the whole system must be ensured. Incorrect material combinations in the water circuit can lead to damage due to galvanic corrosion. This requires special attention when using galvanized components and components that contain copper.
  • Page 18 4.1. Water connections Dirt in the pipe work must be avoided. After installation of the external pipes flush if required before connection of the domestic hot water heat pump. If no circulation of water is needed, make sure that the circulation connection is properly sealed.
  • Page 19 4.4. S Coil connection (optional) In the unit there can be an extra heat exchanger installed. In the sensor pocket for the thermostat sensor, there can also be placed a sensor to control the external connec- tion e.g. oil burner, wood burner etc. The maximum inlet temperature of the heating coil is 90 °C.
  • Page 20 4.6. Leak test After installation it is necessary to check that the entire water installation is tight. This is accomplished by performing a water leak test. 4.7. Commissioning of the water circuit Fill the water tank via the cold water connecting branch. Deaerate the water tank by opening one of the hot water taps located at the highest level until air no longer appears at the tapping point.

  • Page 21: Air System

    5. AIR SYSTEM The inlet air must not be polluted with aggressive components (ammonia, chlorine etc.) as components parts of the heat pump unit may be damaged. The air also needs to be free of dust and other particles. Inlet and outlet ducts shall be made of rigid smooth pipes to minimize pressure losses. Please take into account the fan working pressure and the ducts pressure losses dur- ing dimensioning of the duct system (see technical data).
  • Page 22 far from and possibly higher than the outlet pipe, to minimize the recirculation of cold air into the unit. 4) Ducted unit, exhaust air. This is the configuration that normally minimizes the electricity consumption of the unit. It is particularly suggested if there is no cooling demand in the installation site.
  • Page 23 The appliance is normally supplied with two air duct connections with a plastic net with a protective function (Figure 14). If the appliance is used as ducted unit it is highly suggested to manually remove the plastic net by using a set of pliers. This operation allows the unit to run more effi- ciently, since the air pressure losses in the air circuits are minimized.

  • Page 24: Electric Connections

    6. ELECTRIC CONNECTIONS The unit must be supplied with current at 220-240V and 50 Hz. The unit is supplied with a standard Schuko plug. If local regulations dictates fixed installation or if the supplied plug does not ensure correct earthing, cut off the Schuko plug from the power supply cable.

  • Page 25: Control And Operation

    7. CONTROL AND OPERATION 7.1. Home view The unit can be controlled from the control panel described in Figure 17. From the home view, all the main operational modes, functions, set points and information on the unit can be accessed. Figure 17 –...
  • Page 26 The top part of the screen gives information about the unit operation, time and tem- perature set point. This part is passive and it is changed automatically. The bottom part of the screen is active, meaning that the icon on the screen contains other menu items.
  • Page 27 Class Code Menu Item Description T air i The air temperature at the inlet of the unit T air o The evaporator temperature at the outlet of the unit T tank t The water temperature at the top of the unit T tank b* The water temperature at the bottom of the unit T extra*...
  • Page 28 Class Code Menu Item Description T1 Error The temperature sensor T1 is out of range T2 Error The temperature sensor T2 is out of range T3 Error The temperature sensor T3 is out of range. If T3 Error occurs, the unit does not heat the water in any way T4 Error* The temperature sensor T4 is out of range.
  • Page 29 Code Set point name Description AUTO The heat pump heats the water when required, normally using the heat pump operation. The unit starts when the water temperature T3 is more than 5°C below A1 (T AUTO) and it stops when this temper- ature is reached.
  • Page 30 7.4. Main Menu Entering this menu requires a good understanding of the unit operation. It is highly recommended to read and well understand the descriptions of the follow- ing menu items. Changing some of these set points can have large effects on how the appliance operate and performs.
  • Page 31 7.4.2. Functions The functions are similar to the modes of operation but they cannot be accessed directly from the home view and they can vary from unit to unit. In addition, since SOLAR, FLOOR and COOLING (called extra functions) can not be used simultaneously, the choice of these functions should be made from the Installer menu (D26 Extra function).
  • Page 32 Set point Factory Code Description Range name setting The unit can be programmed to deliver hot water from 1 to 30 days from the moment in which the function Hot on is activated and the HOLIDAY mode is selected. The OFF/ON time unit switches to AUTO MODE in the desired number of...
  • Page 33 Set point Factory Code Description Range name setting The desired floor heating temperature in °C with Floor T* 15 - 40 hysteresis of 1K. The Cooling function can be activated. See installer Cooling* OFF/ON menu D28 (Cooling type). The air temperature set point (°C) below which the Cooling T* heat pump stops, when the unit is in the Cooling 10 - 30...
  • Page 34 7.4.4. Installer The installer menu should be accessed only by qualified personnel. Some of the set points that can be regulated from this menu can have large effects on the unit perfor- mance depending on the type of commissioning and installation. There should be a proper match between installer set points and type of installation in order to optimize the performance and lifetime of the unit.
  • Page 35 Set point Factory Code Description Range name setting The minimum air temperature allowed during the operation of the heat pump can be regulated here. If (-7) - Air T min T1 is below Air T min the electric heater starts and (+10) it works alone until the set point is reached.
  • Page 36 Set point Factory Code Description Range name setting The forced operation of the heat pump can be activated here. The heat pump starts even if there is not need for hot water. When the maximum Forced temperature allowed by the heat pump is reached OFF/ON operation the unit will stop.
  • Page 37 Set point Factory Code Description Range name setting The desired extra function is selected here. The OFF/ Extra possible functions are Solar, Floor or Cooling. Solar/ function* Once the function is activated, move to the func- Floor/ tion menu and adjust the set point as desired. Cooling The SG ready function can be activated by the installer here.
  • Page 38 Set point Factory Code Description Range name setting OFF* Normal operation. The fan always runs according to the input signal in GC1 (0-10V) from an external hygrostat, -sensor or similar appliances. If the voltage is between 0 - 3.0 V the fan OFF/ Hygrostat* speed is D5 (Fan min speed).
  • Page 39 1) If the air temperature is above 4°C, then the defrosting occurs running both com- pressor and fan. The fan runs at speed D3 (Fan max speed). 2) If the air temperature is below 4°C, then the defrosting occurs running the com- pressor and stopping the fan.
  • Page 40 TB1: DC/AC Inverter BU: Energy meter E1-2-3: Electric loads WG1: Heat pump power supply GC1: Photovoltaic function input signal (0-10 VDC , 0-3 VDC, 4-20 mA). 7.7. Safety features 7.7.1. High pressure switch In order to ensure that the compressor does not run beyond its operating envelope there is a built-in high pressure switch which shuts down the compressor when the pressure in the cooling circuit becomes too high.
  • Page 41 7.7.3. Alarms Alarm Meaning Possible reasons Possible solutions Er1, Er2, Temperature The temperature sensor T1, T2, T3, Check that the sensor is Er3, Er4, sensors out T4* or T5* is defective or not connect- connected to the PCB of range ed to the PCB Substitute the temperature sensor...

  • Page 42: Maintenance

    8. MAINTENANCE Please observe local rules and regulations regarding potential periodically inspection of the heat pump by skilled personnel. 8.1. Environmental requirements When repairing or dismantling the domestic hot water heat pump please follow the environmental regulations and legal requirements in relation to recycling and disposal of materials.
  • Page 43 8.4. Water circulation and water tank 8.4.1. Pressure relief valve Your installer has installed a pressure relief valve near the cold water connection on the domestic hot water tank to protect the water tank against excessive pressures when the domestic water expands during the heating process. The back pressure valve (check valve), which is installed in front of the pressure relief valve on the cold water pipe, prevents water from the tank flowing back into the cold water pipe.
  • Page 44 0.3 mA Figure 22 – Anode control Please note that the water has to be heated to operational temperatures at least once before the test above can be performed. In order to replace the anode the following should be done: •...

  • Page 45: Disassembly & Decommissioning

    9. DISASSEMBLY & DECOMMISSIONING The following must be done during decommissioning: • Disconnect the unit from the power mains - i.e. the electrical cables are removed. • Close the cold water supply and attach a hose to the drain valve, so that water from the tank can run to the nearest drain.

  • Page 46: Troubleshooting

    10. TROUBLESHOOTING In addition check out the following questions before contacting an installer: • Is the cold water supply open? • Has the periodic cleaning of evaporator, condensation drain and fan as described in the maintenance section been followed? • Has any of the safety features disengaged the heat pump/electrical immersion heater? •...
  • Page 47 Problem Possible reasons Possible solutions The product The unit is not connected to the Make sure the display turns ON does not power supply supply hot Alarms from the controller stop the Check the alarms in the Info menu Er water operation of the unit Low water temperature set points...

  • Page 48: Warranty

    11. DECLARATION OF CONFORMITY The Declaration of Conformity can be downloaded at www.genvex.dk...

  • Page 49: Product And Installer Information

    12. PRODUCT AND INSTALLER INFORMATION Installed model: Serial number: Accessories: Installers Pipe installation Date: Company: Name: Phone number: Electrical installation Date: Company: Name: Phone number: Commissioning Date: Company: Name: Phone number:...
  • Page 52 – in fact you can recover up to 95% of the heat energy with a Genvex system. Please visit www.genvex.dk to see a list of our distributors KVM-Genvex A/S • Sverigesvej 6 • DK-6100 Haderslev • Tlf.: +45 73 53 27 00 • salg@genvex.dk • genvex.dk...

This manual is also suitable for:

Vanvex rs +

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