VIESMANN Operating instructions for the system user Compact heat pump with electric drive, type AWC-I, AWC-I-M, AW-O, AW-O-M VITOCAL 300-A Please keep safe. 5592 627 GB 6/2009...
Safety instructions For your safety Please follow these safety instructions closely to prevent accidents and mate- rial losses. Safety instructions explained Danger Incorrect work on the system can Danger lead to life-threatening acci- This symbol warns against the dents. risk of injury. Work on electrical equipment must only be carried out by a Please note...
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Safety instructions For your safety (cont.) Auxiliary components, spare and wearing parts Please note Components that are not tested with the system may cause sys- tem damage, or may affect its functions. Installation or replacement work must only be carried out by quali- fied personnel.
Index Index Introductory information Device description....................Your system is preset at the factory..............Power-OFF period....................Where to find the controls Summary of controls and indicators..............■ Opening the control unit..................■ Display and control elements................10 ■ Symbols on the display..................11 ■...
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Index Index Selecting DHW heating Selecting constant DHW heating................28 ■ Setting the DHW temperature................28 ■ Setting switching times (time program)............. 29 ■ Setting switching times for the auxiliary output (e.g. DHW circulation pump, if installed)......................30 Selecting DHW heating only once................ 32 ■...
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Index Index (cont.) Maintenance Cleaning....................... 54 Inspection and maintenance................54 ■ DHW cylinder (if installed)................. 54 ■ Safety valve (DHW cylinder)................55 ■ Potable water filter (if installed)................. 55 Energy saving tips..................... 56 Keyword index....................57...
Introductory information Device description The Vitocal 300-A is an air/water heat pump with an electric drive. ■ Up to 3 heating circuits (2 with mixers) ■ The control side of this equipment is can be heated. prepared for DHW heating using an ■...
Introductory information Power-OFF period D ° During any power interruption by the § power supply utility, the control unit dis- plays the text shown in the diagram. 51 °C 21 °C 22 °C 23 °C 21 C The control unit restarts with the selected C5 Power-OFF operating mode as soon as the power supply utility restores the power supply.
Where to find the controls Summary of controls and indicators You can change all the settings for your heat pump centrally via the programming unit. You can also make some adjustments via the remote control, if your system is equip- ped with one.
Where to find the controls Summary of controls and indicators (cont.) Display and control elements A ON/OFF switch C ON indicator (green) B Fault indicator (red) D Programming unit D ° § 51 °C 21 °C 22 °C 23 °C 21 °C THU 27.03.08 11:55 TYPE VX.XX...
Where to find the controls Summary of controls and indicators (cont.) Main menu A: Information Cylinder DHW t. B: Appliance settings C: DHW F: Reset K "Standard display" key R Display with main menu P Selection keys Display layout If more than seven menus are available, navigate to them with selection key At any one time, the display shows "Further menu items".
Where to find the controls Summary of controls and indicators (cont.) 4 Holiday program enabled ( Winter mode enabled _ Party mode enabled ¡ Cooling mode is active 8 DHW cylinder heating enabled % Summer mode enabled 5 Frost protection enabled h Manual mode enabled ²...
Menu structure Menu structure overview The menu structure that can be called up on your display is subject to the system version. A See the following diagram...
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Menu structure Menu structure overview (cont.) A See the previous diagram...
Start-up/shutdown Starting the heat pump The commissioning and matching of the control unit to local conditions and the struc- tural characteristics of the building must be carried out by your heating contractor. 3. Switch ON/OFF switch A ON. 1. Check the heating system pressure at the pressure gauge: After a short time, the current operat- The system pressure is too low if the...
Start-up/shutdown Shutting down the heat pump (cont.) We recommend you contact your local Note heating contractor before and after shut- Drain heat pumps installed outside if ting down your heat pump for longer peri- they are shut down for longer periods. ods.
Start-up/shutdown Starting central heating/cooling and DHW heating (cont.) Central heating/cooling according to a time program Set the operating mode selector to u. ■ Central heating or cooling via a heat- ■ DHW heating is activated according to ing circuit is activated with weather- the set switching times and operating compensated control according to the modes (see page 29)
Start-up/shutdown Starting central heating/cooling and DHW heating (cont.) Central heating with reduced room temperature Set the operating mode selector to m. ■ Central heating with weather-compen- ■ DHW heating is activated according to sated control is activated all day with the set switching times and operating the reduced room temperature (see modes (see page 29)
Start-up/shutdown Starting DHW heating only (cont.) Set the operating mode selector to w. ■ Cooling via a separate cooling circuit ■ Frost protection for the heat pump, is activated all day with the room tem- DHW cylinder and heating water buffer perature specified for this (see cylinder (if installed) is enabled page 24)
Adjusting the room temperature Setting a permanent room temperature Observe the following points if you 3. The selected switching times deter- want to activate central heating: mine when central heating or cooling according to the time program (u) will 1. s, m or u must be selected at the be activated with standard or reduced operating mode selector: room temperature (see page 22).
Adjusting the room temperature Setting a permanent room temperature (cont.) Select the required temperature at rotary selector s. If several heating circuits are installed, this change will affect all heating cir- cuits. Note If a remote control (e.g. Vitotrol 200) is connected to a heating circuit, the room temperature set via the remote control applies to this heating circuit.
Adjusting the room temperature Setting a permanent room temperature (cont.) [°C] Heating circ. 1 5. !/1 for the required temper- 20.0 Room t standard ature. 16.0 Room t reduced ª restores the selec- Switching times HC ted temperature to the Heating curve level delivered condition.
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Adjusting the room temperature Setting a permanent room temperature (cont.) Note ■ You can set switching times individu- In "FIXED VALUE" mode, heating ally for the following days or parts of occurs at the maximum flow temperature the week: "Max. flow temp.", cooling at the mini- –...
Adjusting the room temperature Setting a permanent room temperature (cont.) 8. > for the time (time top 10. Proceed as described in points 6 to left / position of arrow 9 to set further switching times bottom) from which the operating mode should 11.
Adjusting the room temperature Changing the room temperature for a few days… (cont.) – Central heating is activated all day – No DHW heating with the selected reduced room tem- – No cooling perature – Frost protection for the heat pump, DHW cylinder and heating water buffer cylinder (if installed) is ena- bled...
Adjusting the room temperature Changing the room temperature for a few days… (cont.) 2. "Date and time" 4. "YES" to confirm; the holiday pro- gram is terminated 3. "Holidays program" Changing the room temperature for a few hours only The following function enables you to change the room temperature for a few hours, without permanently altering your control unit settings.
Adjusting the room temperature Changing the room temperature for a few hours… (cont.) 6. "OK" to confirm and exit the menu Symbol _ appears on the standard display when the party program is enabled (see page 10) Terminating the party program Party mode ends automatically with the next changeover to central heating with standard room temperature, but no later...
Selecting DHW heating Selecting constant DHW heating Note If several heating circuits are installed, DHW heating applies to all heating circuits. Observe the following points if you 3. When DHW will be heated according want to adjust the DHW heating: to the time program (u), and when the DHW circulation pump (if installed) will 1.
Selecting DHW heating Selecting constant DHW heating (cont.) Press the following keys: 5. !/1 for the required temper- ature. 1. "Device settings" ª restores the tem- perature to the delivered 2. "Programming" condition. 3. "DHW" 6. "BACK" to confirm and exit the menu.
Selecting DHW heating Selecting constant DHW heating (cont.) Switching times DHW 0 3 6 9 12 15 18 21 24 20:00-20:14 MONDAY TUESDAY WEDNESDAY THURSDAY 4: 2. TEMP. FRIDAY 3: STANDARD SATURDAY SUNDAY 2: TOP 1: OFF >> VALUE SET>> The operating mode for the selected 7.
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Selecting DHW heating Selecting constant DHW heating (cont.) You can select when and how (con- ■ You can set switching times individu- stantly or cycling) the DHW circulation ally for the following days or parts of pump should run ("Wtimer DHW the week: Circ.").
Selecting DHW heating Selecting constant DHW heating (cont.) 7. "VALUE" for the required operat- 9. ¦ for the required period ing mode (min. 15 min) 8. > for the time (time top 10. Proceed as described in points 6 to left / position of arrow 9 for the setting of further switching bottom) from which the...
Selecting DHW heating Selecting DHW heating only once (cont.) If you want to terminate DHW heating 2. "NO" to confirm prematurely, press the following keys: 1. "DHW" Auxiliary DHW function (pasteurisation) As additional protection to ensure bacteria are killed, you can select "Aux. func- tion"...
Selecting DHW heating Set temperature 2 (DHW) (cont.) Note Press the following keys: The "Second set temperature" cannot be set higher than the maximum DHW 1. "Device settings" cylinder temperature. The maximum DHW cylinder temperature can only be 2. "Programming" changed by your heating contractor.
Selecting DHW heating Stop optimisation for cylinder heating The stop optimisation ensures that the DHW cylinder is fully heated until the end of operation in standard mode. Note This function is only enabled if switching times have been set for the DHW cylin- der (see page 29).
Further adjustments Switching times for the heating water buffer cylinder ■ At the factory, "STANDARD" is set for ■ You can set switching times individu- every day from 0:00 to 24:00 h, i.e. all ally for the following days or parts of rooms are heated all day to the stand- the week: ard room temperature.
Further adjustments Switching times for the heating water buffer… (cont.) The operating mode for the selected 7. "VALUE" for the required operat- period (15 min block, top left) is dis- ing mode played by bar height and number (1, 2, 3 or 4).
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Further adjustments Modifying the heat pump heating characteristics (cont.) 4. y/x for "Heating curve level" Heating curve level = 0 Slope Heating curve = 0.6 "Heat. curve slope" 5. ? to open the selected menu 6. «/¬ for the required slope + / - --- + --- 7.
Enabling and disabling the cooling function The Vitocal 300-A uses the active cooling function, i.e. here, the heat pump circuit is active. Benefits: For the active cooling mode, the heat ■...
Further adjustments Enabling and disabling the cooling function (cont.) ■ Cooling via a heating circuit: Note Outside temperature has exceeded You can cancel the enabled status of the the cooling limit cooling function at any time. ■ Cooling via a separate cooling circuit: Room temperature has exceeded the set temperature Enabling active cooling...
Further adjustments Date and time Date and time are factory-set and can be changed manually. Date and time 2. "Date and time" 3. "Date and time" Thursday 10.04.08 00:00 4. {/} for the value to be adjus- ted (date, time) 5.
Further adjustments Restoring the delivered condition ("Reset") (cont.) Note If necessary, your heating contractor can reset further parameters. Resetting individual parameters To reset individual parameters, call them up in the relevant menu and press ª. Resetting several parameters simultaneously With this function, you either reset only Press the following keys: the parameters related to the menu items available in the "Programming"...
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Further adjustments Restoring the delivered condition ("Reset") (cont.) 4. "NO" if you do not want to reset the parameters related to the menu item displayed (e.g. "System defini- tion"). The scan is repea- ted for the next menu item (e.g. "DHW").
Scanning options Scanning temperatures [°C] Sensor temperatures You can scan the temperatures of the Outside following temperature sensors, fitted Evaporator -1.4 inside or outside the heat pump: Flow primary ■ Outside Primary off -2.0 ■ Evaporator Flow secondary 35.1 30.5 Secondary return ■...
Scanning options Scanning switching times (cont.) 4. > to start the graphic display. 5. "BACK" to exit the menu. Time is displayed in the top l.h. corner; the selec- Note ted operating mode to the To change the switching times, see right of the graphic (for an page 22, 29, 30 or 36.
Scanning options Scanning statistics (cont.) Press the following keys: 3. "Energy statem" 1. "Information" 4. "Solar yield" 2. "Statistics" 5. "BACK" to exit the menu Operating conditions in the system overview In the system overview, you can read off 2. "System overview" temperatures and switching conditions of the components in your system.
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Back A to N For an explanation of the con- Fan as a symbol for the tents of columns A to M, Vitocal 300-A heat pump see the following tables. Columns C and L, and area N, are blank. Î...
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Scanning options Operating conditions in the system overview (cont.) Ï ¾ Solar circuit Heating water buffer cylinder Collector temperature (outlet Heating water buffer cylinder temperature) temperature Set temperature, heating water buffer cylinder Collector temperature (inlet tem- perature) System flow temperature Solar cylinder DHW temperature Solar cylinder circulation pump System flow...
Scanning options Operating conditions in the system overview (cont.) Heating circuit 3 (with mixer) 21:01 Time Room temperature SPF: The seasonal performance fac- tor (SPF) of the refrigerant cir- Set room temperature cuit is 3.9 Heating circuit flow temperature The seasonal performance fac- Set heating circuit flow tempera- tor is the ratio of the amount of ture...
Scanning options Scanning messages (cont.) D ° § 51 °C 95 °C 22 °C 23 °C 21 °C B1 KM BUS EEV THU 27.03.08 11:55 TYPE VX.XX A Fault indicator C Message symbol B Message If your heat pump has a message pend- You can check the message B on the ing, this will be indicated on display B display yourself, and notify your heating...
Scanning options Scanning messages (cont.) Acknowledging messages Fault messages 4. "TIME" for the time at which the B1 KM BUS EEV message occurred. B4 AD converter Return to the message 39 primary return sensor display with "MES- SAG". 5. "BACK" to exit the menu Back TIME...
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Scanning options Scanning messages (cont.) Note ■ The messages cannot be acknowl- edged in the message history. ■ The messages are listed in order of occurrence with the most recent first.
What to do if... No display indication Cause Remedy Power failure/fault in the power supply. Appliance starts automatically as soon as power is restored or the fault has been remedied. The fuse has blown. Notify your local contractor. Appliance was switched off at the system Start appliance (see page 15).
Maintenance Cleaning All equipment can be cleaned with a commercially available domestic clean- ing agent (non-scouring). Water must not be allowed to enter the heat pump. Inspection and maintenance Inspection and maintenance of your Regular maintenance ensures trouble- heating system is prescribed by the free, energy efficient, environmentally Energy Savings Order and DIN 4755, responsible and safe heating.
Maintenance Inspection and maintenance (cont.) Safety valve (DHW cylinder) The safety valve function should be checked every six months by venting, either by the system user or the local heating contractor. The valve seat may become contaminated (see the valve manufacturer's instructions).
Energy saving tips Energy saving tips With the following steps, you can save additional energy: ■ Ventilate correctly: Open windows 1 fully for a short time and at the same time close thermo- static valves 2. ■ Do not overheat: Endeavour to achieve a room temper- ature of 20 °C;...
Keyword index Keyword index Cooling circuit Active cooling........16 ■ Room temperature......24 ■ Disabling.........39 Cooling mode........12 ■ Enabling..........39 Auxiliary DHW function (pasteurisation)......29, 33 17, 18, 19, 28 Auxiliary output........30 ■ Auxiliary function (pasteurisation)...33 Average runtimes.......45 ■ Once-only........32 ■ Starting........16, 18 ■ Stopping.........18 Buffer cylinder......7, 8, 17, 36 DHW circulation line......33 Building drying........12...
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Keyword index Keyword index (cont.) Heating circuits........12 ■ Remote control.......12 Note...........49 Heating curve Number of starts........45 ■ Level..........37 ■ Slope..........37 Heating curve level......37 ON/OFF switch......10, 15 Heating curve slope......37 Once-only DHW heating....32 Heating limit........16 ON indicator........10 Heating water buffer Opening the control unit.......9 cylinder.....7, 8, 17, 18, 19, 36 Operating condition......11 Holiday..........24...
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Keyword index Keyword index (cont.) Restoring the delivered condition..41 Shutdown........15, 16 Room temperature......7, 17 Shutting down the appliance....15 ■ Factory setting........21 Shutting down the heat pump....15 ■ Programmed........21 Standard display........11 ■ Reduced........18, 21 Standard displays......10 ■ Rotary selector for settings.....10 Standard mode........11 ■...
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Contact your local contractor if you have any questions regarding the maintenance and repair of your system. You may, for example, find local contractors on the internet under www.viessmann.com. Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford...
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