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INTRODUCTION

EN

0020140122_02 - 05/13

3.2 Product 

structure

3.2.1 M

onozone operation mode

T

he Monozone operation mode is compatible with:

 - eBUS controllers range (VRT 392, VRT 392f, VRT 350, VRT 350f, 

VRC 430, VRC 430f, VRC 470, VRC 470f)

 - S

ystem and open vent boiler

I

t allows the controller to communicate with the traditional 

230V zone valves and DHW storage cylinder. Information 

about the heat required by the cylinder is communicated to 

the heating appliance. The heating appliance (boiler) then 

decides whether a hot water request has to be fulfilled and 

sends a signal to position the 230V zone valves.

T

he initial start-up of the VR66 controls is carried out together 

with the initial start-up of the boiler.

i

If a 

VR65

 is replaced by a 

VR66

 it has to be set on 

monozone mode.

3.2.2 

Priorities in boilers are de

fi

 ned as follows:

Display

Meaning

0

Hot water priority

- The 3-port valve is in the heating or hot water position 

depending on the operating mode.

- With 2-port valves, either the DHW valve or the CH valve is open, 

both valves are closed on standby.

1

Enable mid position

- The 3-port valve is in the mid position for simultaneous heating 

and hot water request, or in the heating or hot water position, 

depending on the operating mode.

- With 2-port valves, both valves are open during simultaneous 

heating and hot water request. Otherwise, only one valve is 

always open and both valves are closed on standby.

2

Only heating mode (only for test

operation!)

- Only the CH valve is activated.

NOTE: Factory settings of boiler = 0 : hot water priority.

Содержание VR 66

Страница 1: ...Installation instructions GB IE VR 66 Control Centre VR 66 Installation instructions For the competent person ...

Страница 2: ......

Страница 3: ...g and installation 11 4 1 Preparing the mounting and installation 11 4 2 Mounting the product 11 4 3 Electrical Installation 12 5 Commissioning 13 5 1 Filling 13 5 2 Venting 13 5 3 Switching on 13 5 4 Multizone specific adjustment 13 5 5 Restart and check 13 6 User information 14 7 Maintenance 14 7 1 Trouble shooting 14 7 2 Main supply cable 14 8 Decommissioning 15 9 Recycling and disposal 15 9 1 ...

Страница 4: ...ance with BS EN 7671 2 1 General safety advices Before to read this chapter also read the general safety advice of the operating instructions 2 1 1 Danger to life by electric shock Touching live connections can cause serious personal injury Before carrying out any work on the product switch off the power supply Secure the power supply against being switched on again 2 1 2 Danger to life by escaping...

Страница 5: ...ll be necessary to install the unit in a location where it will not be exposed to moisture or water splashes Observe the electrical protection EP contained in the technical data Any other use than the use described in the instructions at hand or any use extending the described use is not intended Any direct commercial or industrial use is also deemed to be improper 2 3 Rules and regulations 2 3 1 ...

Страница 6: ...sed to demonstrate compliance with Building Regulations and should be provided to the customer for future reference Installers are required to carry out installation commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote the Scheme Visit www centralheating co uk for more information...

Страница 7: ...r with the initial start up of the boiler i If a VR65 is replaced by a VR66 it has to be set on monozone mode 3 2 2 Priorities in boilers are defined as follows Display Meaning 0 Hot water priority The 3 port valve is in the heating or hot water position depending on the operating mode With 2 port valves either the DHW valve or the CH valve is open both valves are closed on standby 1 Enable mid po...

Страница 8: ...ic hot water cylinder 8 NTC not supplied 9 Cylinder thermostat 10 Heating circuit 11 Overheating safety if underfloor heating A Boiler circuit return B Boiler circuit flow C Cold water supply D Domestic hot water outlet DHW cylinder with NTC DHW cylinder with thermostat 3 port valve electrical connections Connect the live wire white or brown of the valve to the L of the CH1 connector Connect the e...

Страница 9: ...6 2 8 3 A B 9 10 4 12 7 5 1 C D 1m min 10 10 1 2 6 4 3 6 Key 1 Room thermostat 2 System boiler 3 DHW valve 2 port valve 4 Heating 2 port valve 5 Electrical supply 6 VR66 control unit 7 Bypass necessary with open vent boilers 8 Domestic hot water cylinder 9 NTC not supplied 10 Cylinder thermostat 11 Heating circuit 12 Overheating safety if underfloor heating A Boiler circuit return B Boiler circuit...

Страница 10: ... can store different target temperatures for heating and hot water modes i The multizone mode is only compatible with VRT350 No other room thermostats are compatible The multizone mode will NOT support weather compensation and cannot be used on Y plan systems with three port motorised valves The standard installation for multizone mode is characterised by 1 or 2 port valves for zoning 1 or 2 VRT350...

Страница 11: ... Open vent or system boiler 3 VRT350 room thermostat zone 2 4 Connection block not supplied 5 NTC not supplied 6 Heating zone 2 2 port valve 7 DHW valve 2 port valve 8 Heating zone 1 2 port valve 9 Electrical supply 10 VR66 control unit 11 Bypass necessary with open vent boilers 12 Domestic hot water cylinder 13 Cylinder thermostat 14 Overheating safety if underfloor heating as far as possible or ...

Страница 12: ...6 1 2 3 7 4 1 C Key 1 VRT350 thermostat zone 1 2 Combi boiler 3 VRT350 thermostat zone 2 4 Connection block not supplied 5 Heating zone 2 2 port valve 6 Heating zone 1 2 port valve 7 Electrical supply 8 VR66 control unit 9 Heating circuit zone 1 10 Heating circuit zone 2 11 Overheating safety if underfloor heating A Boiler circuit return B Boiler circuit flow C Cold water supply D Domestic hot wat...

Страница 13: ... Before choosing a site for the appliance carefully read the safety warnings and instructions in the user guide and installation manual Explain these requirements to the appliance user Take all necessary precautions Install the system in a room protected from frost in a convenient location accessible for wiring and servicing Do not install the control unit close to heat sources such as radiators c...

Страница 14: ...m If the cable is damaged it must be replaced by a qualified engineer The external wiring must be earthed with correct polarity and in accordance with current standards The manufacturer declines any responsibility for damages to persons or others caused by the incorrect installation of the appliance earthing This includes failure to comply with current standards b Caution These pipes can become ve...

Страница 15: ...tructions of its installation manual Refer to the installer manual 5 2 2 Heating circuit adjustement Venting of the heating circuit enables the purging of any air in the heating circuit valves still manually opened Open the different heating circuit air vent b Caution When venting is complete close the different heating circuit air vent and valves 5 3 Switching on Turn on all the appliances that ma...

Страница 16: ... connected correctly Check the domestic fuse for the 230 V supply and re connect the power supply Replace the main supply fuse in the control unit see technical data Red LED flashes quickly 2 Hz 2 flashes second Short circuit of the connected temperature sensor NTC in the cylinder Check the cable of the temperature sensor NTC for damage Replace the temperature sensor NTC in the cylinder Red LED fl...

Страница 17: ...i By adhering to this directive you are helping the envi ronment and contributing to the preservation of natu ral resources and the protection of human health 10 Guarantee and customer service 10 1 Vaillant warranty We only grant a Vaillant manufacturers warranty if a suitably qualified engineer has installed the system in accordance with Vaillant instructions The system owner will be granted a wa...

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Страница 20: ...Manufacturer Supplier Subject to engineering changes 0020140122_02 05 13 ...

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