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MAKING MODERN LIVING POSSIBLE
VX Solo HWS
Instructions for installation and use
Danfoss District Energy

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Summary of Contents for Danfoss VX Solo HWS

  • Page 1 MAKING MODERN LIVING POSSIBLE VX Solo HWS Instructions for installation and use Danfoss District Energy...
  • Page 2: Table Of Contents

    Contents 1.0 Contents ...............................................2 2.0 Product introduction ..........................................3 2.1 VX Solo HWS (thermostatic control and terminal box) - 1 HE circuit + sec. connection for DHW cylinder ........3 3.0 Dimensional sketch / connections .....................................4 4.0 Enduser instructions, General ......................................5 5.0 Enduser instructions, Adjustment and Setting ................................6 6.0 Installation instructions, Safety and Handling ................................7...
  • Page 3: Product Introduction

    Instructions for installation and use VX Solo HWS substations 2.0 Product introduction VX Solo HWS (thermostatic control and terminal box) - 1 HE circuit + sec. connection for DHW cylinder Supply limit Air valve Fill valve / Tapping point Sensor pocket for heat meter ½“...
  • Page 4: Dimensional Sketch / Connections

    Instructions for installation and use VX Solo HWS substations 3.0 Dimensional sketch / connections Dimensions: Dimensions without cover H 850 x W 560 x D 350 mm Dimensions with cover H 1000 x W 600 x D 400 mm Connections:...
  • Page 5: Enduser Instructions, General

    The ITC must be mounted in the 2/3 point of the DHW cylinder. The VX Solo HWS is specificly prepared for connection of a TP9000 programmable room thermostat / DHW time controller, which allows heating and DHW operation according to demand.
  • Page 6: Enduser Instructions, Adjustment And Setting

    Pump. Fig. 3 VX Solo HWS substations are factory fitted with a pump (Fig. 3). The pump setting is established in connection with the commissioning. Generally speaking, this setting is not to be altered. If it should neverthe-...
  • Page 7: Installation Instructions, Safety And Handling

    Instructions for installation and use VX Solo HWS substations 6.0 Installation instructions, Safety and Handling Instructions Please read these instructions carefully before installing and comis- sioning this substation. The manufacturer accepts no liability for loss or Connection damage resulting from failure to comply with these instructions for use.
  • Page 8: Installation Instructions - Getting Started

    Mount immersion control thermostat (either type ITC, which can be supplied loose from Danfoss as an option or any other appli- cable thermostat) and wire this to the terminal box according to wiring diagram on page 11.
  • Page 9: Description Of Vx Solo Hws

    An applicable immersion control thermostat of your choice, used to control the water temperature in the hot water cylinder must be mounted on site. Danfoss offers an immersion control thermostat type ITC, which must be ordered separately and supplied loose with the substation for mounting on site.
  • Page 10 0,5 bar. Fitting piece for heat meter(s) The VX Solo HWS substation is equipped with fixed fitting piece size 3/4” x 110 mm for fitting of heat meter in DH return. Fitting of heat meters - Close the ball valves on the district heating and the heating sides.
  • Page 11 For the VX Solo HWS with terminal box, the pump and zone valve are pre-wired to the terminal box, and the terminal box is also prepared for connection of a TP9000 programmable room thermostat / DHW time controller and a ITC immersion control thermostat.
  • Page 12 Instructions for installation and use VX Solo HWS substations Filling, start-up Prior to the VX Solo HWS installation all its pipes and connections should be cleaned and rinsed. After that the dirt strainers should be cleaned. Fill valve Due to vibrations during transport all connections must be checked and tightened before filling and start-up.
  • Page 13: Commissioning And Start-Up, Vx Solo Hws

    Instructions for installation and use VX Solo HWS substations 10.0 Commissioning and start-up, VX Solo HWS 10.1 Programmable room thermostat / DHW time controller TP9000 TP9000 (not part of delivery) A programmable room thermostat / DHW time controller TP9000, which allows heating and DHW operation according to demand, must be placed in a reference room.
  • Page 14 TD200 Control of heating circuit The HE temperature is controlled by a self-acting temperature con- troller Danfoss AVTB. The controller has a control valve, thermostatic actuator and handle for temperature setting. The AVTB closes on rising temperature. The thermostat will be set by the installer in connection with the com- missioning, but it may be necessary to adjust it subsequently depend- ing on the outdoor temperature.
  • Page 15 Instructions for installation and use VX Solo HWS substations Circulation pump, heating circuit The VX Solo HWS substation comes standard with a Grundfos UPS 15-60 circulation pump, which can be operated at three different speeds. A supplier instructions manual is enclosed.
  • Page 16: Domestic Hot Water Cylinder

    (Please note that cylinder control thermostat is to be ordered sepa- rately, - either type ITC, which can be supplied loose from Danfoss as an option or any other compatible/applicable thermostat). Option:...
  • Page 17: Maintenance

    If rinsing with clean water is not sufficient, the exchanger can also be cleaned by circulating a cleaning agent approved by Danfoss (e.g. Kaloxi or Radiner Fl cleaning fluid) through the exchanger. Both these cleaning fluids are environmentally friendly and can be disposed off through the standard sewer system.
  • Page 18: Maintenance Schedule (Recommendations)

    Instructions for installation and use VX Solo HWS substations 12.1 Maintenance schedule (recommendations) Interval Maintenance work Comments If you identify a leak, replace the gaskets and retighten the pipe connec- Check all connections for leaks tions Check that the safety valve on the cold water supply is Check the functionality by turning the lever on the safety valves functioning correctly.
  • Page 19: Troubleshooting

    Instructions for installation and use VX Solo HWS substations 13.0 Troubleshooting If operating disturbances occur, the following basic features - the substation is connected to electricity (pump and should be checked before carrying out acual troubleshooting: automatic components), - the substation is correctly connected, - the dirt strainer in the district heating supply pipe is clean, - the district heating supply temperature is at least 70 °C,...
  • Page 20 Instructions for installation and use VX Solo HWS substations Problem Possible cause Solution Adjust automatic controls, see instruc- Wrong setting of automatic controls. tions for automatic controls. Defective controller. The controller does Call in automatic controls manufacturer Supply temperature too low not react as it is should in accordance or replace controller.
  • Page 21: Troubleshooting - Domestic Hot Water

    Instructions for installation and use VX Solo HWS substations 13.2 Troubleshooting - Domestic hot water Problem Possible cause Solution Defective or wrongly set differential Check the functions of the differential pressure controller. pressure controller - clean valve seat and capillary tubes if required, - air and rinse capillary tubes.
  • Page 22 Immersion sensor placed incorrectly. Place immersion sensor correctly in ac- cordance with the manufacturer instruc- tions for the cylinder. You may contact Danfoss Redan A/S for further information. Calified heating element. Clean DHW cylinder with acid solution or replace heating element.
  • Page 23: Eu Declaration Of Conformity

    Instructions for installation and use VX Solo HWS substations 14.0 EU Declaration of Conformity Danfoss Redan A/S District Energy Omega 7, Søften DK-8382 Hinnerup Telephone +45 87 43 89 43 EC-DECLARATION OF CONFORMITY For CE marking in EU (European Union)
  • Page 24: Commissioning Certificate

    Instructions for installation and use VX Solo HWS substations 15.0 Commissioning Certificate Commissioning certificate The substation is the direct link between the district heating supply network and the household piping system. All supply pipes and the pipes in the household piping system must be checked and rinsed before commissioning. Once the system has been filled with water, all pipe connections must be retightened before performing pressure test for leaks.
  • Page 25 Instructions for installation and use VX Solo HWS substations 25 25 Danfoss District Energy VI.HE.M1.02 DKDHR...
  • Page 26 Instructions for installation and use VX Solo HWS substations 26 DKDHR VI.HE.M1.02 Danfoss District Energy...
  • Page 27 Instructions for installation and use VX Solo HWS substations 27 27 Danfoss District Energy VI.HE.M1.02 DKDHR...
  • Page 28 Danfoss Randall Ltd. · District Energy · Ampthill Road · DK-Bedford MK42 9ER Tel. +0845 1217 400 · Fax: +0845 1217 515 · danfossrandall@danfoss.com · www.danfoss-randall.co.dk VI.HE.M1.02 Produced by Danfoss Redan A/S © 04/2012...

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