For the owner Operating manual geoTHERM exclusive Heat pump with integrated domestic hot water cylinder and additional cooling function GB VWS
Contents Contents General information ..................................................... Data badge .............................................................................. 3 3 1 1.2 1.3 1.4 Notes on this manual ....................................... Document storage .................................................... Symbols used ............................................................. Applicability of the manual..................................... 3 3 4 4 2 2.1 2.2 3 3.1 3.2 3.3 3.
General information Notes on this manual 1 General information 1 The Vaillant geoTHERM exclusive heat pumps in this manual are referred to in general as heat pumps and are available in the following models: The following information is intended to help you throughout the entire documentation. Further documents apply in combination with this operating manual. We accept no liability for any damage caused by failure to observe these instructions.
1 Notes on this manual 2 Safety instructions 1.3 Symbols used The following hazard classification symbols are used for information, activities and energy saving tips in this operating manual. d H a Danger! Immediate risk of serious injury or death h Note! Useful information and instructions. Danger! Danger of burning and scalding! Caution! Potentially dangerous situation for the product and environment. This symbol points you to energy saving tips.
Safety instructions 2 Information on the installation and operation 3 2.2 Prohibition on alterations d Danger!Inappropriate alterations can cause injuries! Under no circumstances should you attempt to make changes or alterations to the heat pump or other parts of the heating and hot water system yourself. The prohibition applies to: — geoTHERM exclusive heat pumps, — the Vicinity of geoTHERM exclusive heat pumps, — the Supply lines for water and power.
3 Information on the installation and operation d Danger! Risk to life as a consequence of improper use of the installation. There is a risk of death or serious injury to the user or third parties or of damage to the device and other property in the event of improper use or use for which it is not intended. 3.2 Requirements of the installation site The installation site must be dimensioned such that the heat pump can be properly installed and maintained.
Information on the installation and operation 3 3.5 Energy saving tips Below you will find important tips to help you operate your heat pump system in an energy and cost-saving manner. Fig. 3.1 Filling level of the brine expansion tank It is normal for the filling level of the brine to fall a little in the first month after the start-up of the system. The filling level can also vary depending on the temperature of the heat source.
3 Information on the installation and operation — For floor heating use heating curves of < 0.4. For radiator heating, we recommend that they are laid out to manage with a maximum flow temperature of 50 °C at the lowest outside temperature; this corresponds to heating curves of < 0.7. — An appropriate setting of the hot water temperature: Only heat hot water as much as is required for consumption.
Equipment and functional description 4 4 Equipment and functional description 4.2 Mode of operation of the coolant circuit Cold water 4.1 Principle of operation Heat pump systems consist of separate circuits in which liquids or gases transport the heat from the heat source to the heating system. As these circuits operate with differing media (brine/water, coolant and heating water), they are coupled to one another by means of heat exchangers.
4 Equipment and functional description These different temperatures are produced in the coolant circuit by means of a compressor (2) and an expansion valve (4), which are situated between the evaporator and the condenser. The coolant flows in vapour form from the evaporator into the compressor, where it is compressed. This causes the pressure and temperature of the coolant vapour to rise sharply.
Equipment and functional description 4 Freezing protection function The outlet temperature of the heat source is constantly measured. If the heat source outlet temperature falls below a specific value, the compressor temporarily shuts off with the error message 20 or 21. If these errors occur three times in a row there is a fault-induced shutdown. For the geoTHERM VWS heat pumps you can set the value (Default setting -10 °C) for the freezing protection in the installation assistant A4.
4 Equipment and functional description 1 9 2 8 7 6 3 5 4 Fig. 4.4 Rear view Key to Fig. 4.
Operation 5 5 5.1 Operation Familiarising yourself with and operating the controller 2 1 Basic data 6 Date Day of week Time 3 Set day 5 4 Fig. 5.1 Sample illustration no. 3Fig. 7.
5 Operation 5.2 Setting menus and parameters Setting to date Modified setting 6 Holiday programming for cpl. System Period of time Select menu: • Turn the 1 >06.01.08 08.01.08 2 14.01.08 30.01.08 Room Temp. setpoint dial: Select menu e.g. from menu 6 to 7. >21.04.08 Mo 09:35 >Set day 7 Basic data >21.04.08 7 >Mon 09:35 >Set weekday Date Day of week Time Basic data • Push the Date Day of week Time dial: Select parameter: • Turn the dial: Modify parameter, 21.04.
Operation 5 5.3.2 Energy balance control Energy balance control applies only to hydraulic systems without buffer cylinders (e.g. hydraulic plan 6). For economical and fault-free operation of a heat pump, it is important to regiment the starting of the compressor. The start-up of the compressor is the point at which the highest loading occurs. With the help of the energy balance controller it is possible to minimise starts of the heat pump without compromising the comfort of a pleasant room atmosphere.
5 Operation 5.4 Flow diagram Reset to default settings Graphics display We 16.02.08 9:35 Factory setting Cancel Time programme Everything > Select > 5 sec. NO/YES NO/YES NO/YES Graphics display cooling* Installer Menu We 16.02.08 9:35 Sparen aktiviert for > 12:00 > Select stop time We 16.02.08 9:35 Party function enabled Energy input display We 16.02.08 9:35 One-time DHW tank loading enabled Mo 21.04.08 Flow Temp.
Operation 5 5.5 User level displays The individual displays on the operating panel are described and explained below. Display shown Description Graphics display (Top-level display) You can read off the instantaneous state of the system from this display. This is always shown if you have not actuated either of the dials for a long time while another display is showing.
5 Operation Display shown Mon. 21.04.08 Current flow temp. Description 16:49 1 28°C CH pressure 1.2bar Brine pressure 1.4bar Heating only comp. Warning message Warning message Energy input display Shows the energy extracted from the environment for each of the 12 months of the current year (black bar). White-filled bars represent the future months of the year; the height of the bar corresponds to the yield for the month in the previous year (comparison possible).
Operation 5 Display shown HK2 Parameters Description 2 Operating mode heating The Room set target temperature is the tempera- Room set target temp.: 20°C ture to which the heating should be regulated in the operating mode "Heat" or during the time slots. Set-back temp.: 15°C >Auto Set value day 22°C Night set back temp. 15°C >Select operating mode Factory setting Note: Select a room temperature that is just high enough to ensure your personal well-being (e.g. 20 °C).
5 Operation Display shown Description Factory setting For connected domestic hot water cylinders and the Min. hot water circulation circuit the operating modes Auto, On and temp. 44 °C Auto Off are possible. 4 DHW loading Parameters Operating mode WW Auto Max. DHW temp. 60°C 60°C Min. DHW temp. 44°C 44°C Cylinder temp. REAL 51°C >Select set target temperature The maximum WW temperature determines the temperature to which the domestic hot water cylin51°C der should be heated.
Operation 5 Display shown 5 DHW loading Time programme >Mon 1 06:00 22:00 2 : : 3 : : Description Factory setting You can set the times at which the domestic hot water cylinder is heated in the "WW Timer Programme" menu. Up to three times can be programmed per day or block. Mon – Fri 6:00 – 22:00 hrs. Sat 7:30 – 23:30 Su. 7:30 – 22:00 >Select weekday/Block The hot water generation should only be active at times when really hot water is to be run.
5 Operation Display shown Description Period of time 1 >06.01.08 08.01.08 2 14.01.08 30.01.08 >Set start day For the controller and its connected system components it is possible to programme two holiday periods with the introduction of the date. Moreover, the desired target room temperature can be set for holidays, i.e. regardless of the preset timer programme. After the holiday time has elapsed, the controller au12°C tomatically goes back to the previously selected operating mode.
Operation 5 5.6 Special functions Special functions can be selected only from the basic display. To do so press the left-hand dial . To change the parameter, you must turn the dial. The following special functions can be selected: • • • • Energy saving function: Press dial once. Party function: Press dial twice. One-time charging: Press dial 3 x. Cooling operation: Press dial 4 x To activate one of the functions, you merely have to select it.
5 Operation Display shown We 16.02.08 Description 9:35 Cooling function active for > 3 Days Cooling operation: Cooling duration: OFF/1 to 99 days. If the cooling operation is active, – the symbol of an ice crystal appears in the graphic display. Table 5.2 Special functions (ctnd.) • Reset to default setting: Keep dial and dial pressed for longer than 5 seconds. After that you can select whether to reset only the timer programme or all values to the default settings. Display shown We 21.04.
Operation 5 5.7 Starting up the heat pump The start-up of your heat pump was carried out after installation by your expert technician company. A repeated start-up will not even be necessary in the event that your heat pump disconnects from the mains unexpectedly, for example as a result of a voltage drop (power cut, circuit breaker defective, circuit breaker deactivated). Your geoTHERM heat pump has an automatic reset function, i.e.
5 Operation 5.10.2 Activating emergency mode Depending on the type of malfunction the expert technician can set the heat pump to continue operation in emergency mode (via an integrated electric auxiliary heating) until the cause of the error is remedied, and either for heating operation (display "heating priority"), for hot water operation (display "hot water priority") or for both (display "heating priority/hot water priority"), see the following tables, column "emergency operation". 5.10.
Operation 5 5.10.6 Fault-induced shutdown Errors could occur which result in the shutdown of the heat pump.
6 Warranty and customer service 6 Warranty and customer service 6.1 Vaillant warranty Vaillant provide a full parts and labour warranty for this appliance. The appliance must be installed by a suitably competent person in accordance with the Gas Safety (Installation and Use) Regulations 1998, and the manufacturer’s instructions. In the UK ‘CORGI’ registered installers undertake the work in compliance with safe and satisfactory standards.
Appendix 7 7 7.1 Appendix Technical data a Caution! R 407 C is a chlorine-free coolant which does not affect the ozone layer. Nevertheless, servicing work on the cooling circuit should only be carried out by authorised specialists.
7 Appendix Description Integrated domestic hot water cylinder - Contents - Max. operating pressure - Max. temperature with heat pump - Max. temp. with heat pump and auxiliary heating Heat source circuit (brine circuit) - Brine type - Max. operating pressure - Min. inlet temperature - Max. inlet temperature - Nominal flow rate dT 3K - Residual head dT 3K - Nominal flow rate dT 4K - Residual head dT 4K - Electrical power consumption - pump CH circuit - Max. operating pressure - Min. flow temperature - Max.
Appendix 7 7.2 Identification plate An identification plate is attached to the baseplate on the inside of the geoTHERM exclusive heat pump. The type designation is located at the top of the front cladding (see Fig. 4.3, Item 2). Explanation of the symbols on the identification plate Rated voltage - compressor Rated voltage - pumps + controller Vaillant GmbH Remscheid / Germany Rated voltage - auxiliary heating Serial-No.
0020071929_00 GB 102008
