Related Manuals for Worcester GREENSOURCE
Summary of Contents for Worcester GREENSOURCE
- Page 1 WORCESTER GREENSOURCE Air to Water Outdoor Heat pump 6 kW, 7 kW & 9.5 kW GB/IE GB/IE USER MANUAL Please read carefully prior to installation and user guide...
- Page 2 User manual for the Worcester Greensource heat pumps Worcester, 16.06.08 Part number: 8-716-115-328 Issue: a Copyright © 2008...
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Page 3: Table Of Contents
How a heat pump works ........................5 Technology in and around the heat pump ...........................5 Component parts of the heat pump......................7 Greensource A/W heat pump 6, 7 and 9.5 kW ........................7 Control unit Rego 800 ........................... 8 Automatic defrosting ................................8 The control unit’s operating mode ............................9... -
Page 4: For The User
For the user Important information The Greensource is a family of heat pumps, that extract energy from outdoor air to produce water based heating and, if required, hot water for your house. The sizes available are 6, 7 and 9.5 kW. -
Page 5: How A Heat Pump Works
How a heat pump works The heat pump collects heat from the outdoor air The Greensource heat pump has been manufactured for easy and reliable use as well as to provide your house with inexpensive and environment friendly heating. The easiest way to describe how a heat pump works is to say it works like a refrigerator, backward. - Page 6 How a heat pump works Bulb Pressure Service Pressure Service switch switch connec- connec- high tion tion Refrigerant fl ow in heating mode. 4-way valve Refrigerant fl ow in defrost mode. Suction accumulator Heat transfer fl uid out. Service connec- tion Heat transfer fl...
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Page 7: Component Parts Of The Heat Pump
Component parts of the heat pump Greensource A/W heat pump 6, 7 and 9.5 kW Both the control and the additional electric heater is integrated in the Greensource hot water distribution unit. The heat pump is installed outside, the hot water distribution unit is installed indoors. -
Page 8: Control Unit Rego 800
Control unit Control unit Rego 800 The control unit makes sure the heat pump gives the best energy savings and that it runs for many years. The control unit controls and monitors the heating and hot water supply in your house. The monitoring function is es- pecially important, it shuts down the heat pump in the event of operational disturbances so that no critical parts are damaged. -
Page 9: The Control Unit's Operating Mode
Heat pump with Greensource hot water distribu- tion unit When the heat pump is used with the Greensource hot water distribution unit, the control unit sets itself for this operation. This means that the heat pump operates with additional heat from the hot water distribution unit and that the hot water is produced in the hot water distribution unit´s hot water... -
Page 10: The Control Unit's Control Method For Heating
Control unit The control unit’s control method for heating The control unit controls heating production based on an outdoor sensor or an outdoor sensor in combination with a room sensor. Control with an outdoor sensor Control with an outdoor sensor is the most common method used by the control unit to control the heat pump. -
Page 11: Control Panel
When the heat pump is combined with the hot water distribution unit, the control panel and control unit are in the hot water distribu- tion unit. Greensource hot water distribution unit Status LED Menu Menu dial... -
Page 12: Menu Dial
Control panel Menu dial The menu dial is used to navigate between the menus and to confi rm your selection. You are also able to determine the values of different settings by using the dial. If, for example, you turn the menu dial clockwise the value will increase. -
Page 13: Menu Levels
Menu Menu levels The menus are divided into different levels for different purposes. Customer level, here you will fi nd the most common functions. Menu Advanced menu Customer level, here you will fi nd further functions. Installer/Ser vice Installer/Service level, relevent settings are made here by the installer/service technician. As a user of the heating installation, you only see what is available in the two customer levels. -
Page 14: Set The Heating
Menu Set the heating Note There are two ways to set the heating level depending on whether the You should wait at least twenty-four heating installation is supplemented with a room sensor or not. hours when increasing or decreas- ing the heating before making a new adjustment. -
Page 15: Temperatures
Menu Temperatures There are several different temperature sensors connected to the heating installation. Each sensor plays an important part in the heat pump's daily operations. The current temperatures for the sensors which are most important for controlling heating and hot water production are given under Temperatures. -
Page 16: Advanced Menu
Advanced menu Advanced menu Advanced menu •Temperature •Hot water The initial menu in the control unit is called Menu. In this menu you will •Timers fi nd the functions most frequently used and the ones you have the most •Setting the clock benefi... -
Page 17: Set The Heating
Advanced menu Set the heating The simplest way to set the heating has been described earlier under the heading Menu. There is a more controlled way of setting the heating. However, before we explain how to do this it is important to understand the relation between the outdoor temperature and fl... - Page 18 Advanced menu Set the heat cur ve 1. Select Heat curve in the menu Heating system temperature. The current curve is shown here. The value 32.8 is the fl ow temperature at 0ºC. 2. Start by fi nding the value you wish to change. It can be V, H or some other value.
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Page 19: Set The Desired Room Temperature
Advanced menu Hysteresis Hysteresis settings can be made under Heating system temperature. The hysteresis determines when the heat pump (compressor) is to start/stop in relation to the heat curve’s value. The compressor continues slightly longer than according to the curve and starts again when the fl ow temperature has dropped somewhat below the value of the curve. -
Page 20: Heating Season
Advanced menu Holiday Using the Holiday function, you can reduce (or increase) the temperature between two set dates. 1. Select Holiday in the menu Time limited settings under Temperature. 2. Select the start date and end date according to year-month-day. 3. -
Page 21: Hot Water Settings
Advanced menu Hot water settings The menus for hot water settings are only displayed when a hot water heater is installed. Extra hot water You can obtain extra hot water by temporarily increasing the temperature of Note the water in the hot water cylinder. A higher water temperature gives more When the set time has elapsed you hot water when, for example, several people wish to shower. -
Page 22: Timers
Advanced menu Timers There are a number of timers in the control unit. The statuses for these are shown in the menu Timers. You can only view the timers that are running, i.e. are counting down. Most timers are only of interest to installers and service technicians. -
Page 23: Alarm Log
Advanced menu Alarm log You can easily see any alarms and warning windows that may have occurred, see section What to do if a fault occurs. The menu provides information about the alarm type and when the alarm occurred. If there is an alarm symbol in the menu window this means the alarm is still active, and some form of action is required. -
Page 24: Maintenance
Remove the covers by loosening the Lift the cover upwards to release the lower edge. screws on top of the heat pump. Greensource A/W heat pump Remove dirt and leaves Over time leaves and other dirt can enter the heat pump. You can easily remove any dirt through the inspection hatch on the side of the heat pump. - Page 25 (coil fi ns), you should wipe it off. The fi ns are extremely sensitive. Never wipe, e.g. with a cloth, directly on the delicate fi ns. Use protective gloves to Greensource A/W heat pump protect your hands from cuts.
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Page 26: What To Do If A Fault Occurs
If a fault occurs in the control unit and heating production stops, emergency operation can be activated manually using the switch, which then goes out. See the user guide for the Greensource Hot water distribution unit. -
Page 27: All Alarms And Warning Windows
What to do if a fault occurs All alarms and warning windows An alarm can sometimes occur temporarily due to various reasons. However, there is never a risk involved in resetting an alarm. All the alarms that can appear in the menu display are described in this section. - Page 28 What to do if a fault occurs Tripped high pressure switch Possible cause 1: Air in the heating system. Action: 1. Select Acknowledge. 2. Check whether there is air in the radiators. 3. Fill the heating system and vent if necessary. Possible cause 2: Particle fi...
- Page 29 What to do if a fault occurs Faulty function in 4-way valve Possible cause 1: Four-way valve does not work properly. Action: 1. Select Acknowledge. 2. Contact your installer at repeated alarms. T6 High hot gas temperature Possible cause 1: The working temperature of the compressor is too high.
- Page 30 What to do if a fault occurs Low temperature in condenser The alarm is due to low temperature in the heat pump. A warning window is initially displayed. After 4 repeated warnings (within 2 hours), an alarm is given. Possible cause 1: Air in the heating system. Action: 1.
- Page 31 What to do if a fault occurs Warning windows High temperature difference heat transfer fl uid This warning window is displayed when the temperature difference between sensors T8 and T9 becomes too high. Possible cause 1: Not enough fl ow over the heat pump. Action: 1.
- Page 32 What to do if a fault occurs Additional heat is now working at its highest permitted temperature There is a sensor T9 in the heat pump, which for reasons of safety, stops the compressor and limits the additional heat to the heat pump if the tempera- ture of the return water from the heating system becomes too high.
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Page 33: Technical Information
Technical information Technical information Factory settings The table displays the factory values (F value) of the settings that you, as a customer, (K) can change via the customer menus Menu and Advanced menu. Read the table as follows: Menu Level F value To fi... -
Page 34: Technical Information
1.8 metres, is perceived one metre from the heat pump. Measured in a sound measurement room without echo at an outdoor temperature of +7ºC and 50ºC fl ow temperature. Example Greensource 6 kW Example: Distance Lp - ear (dBa) When the heat pump is installed outside with free sound propaga- tion the sound level drops by 6dBa with each doubling of distance. -
Page 35: Sensor Table
Technical information Sensor table The table shows all sensor resistance at different temperatures. Temperature (ºC) kΩ 154.300 111.700 81.700 60.400 45.100 33.950 25.800 19.770 15.280 11.900 9.330 7.370 5.870 4.700 3.790 3.070 2.510 2.055 1.696 1.405 1.170 0.980 0.824 0.696 0.590 0.503 0.430... - Page 36 Part no: 8-716-115-328 Issue a 14697, Issue 1.0 EXCELLENCE COMES AS STANDARD Worcester, Bosch Group Cotswold Way, Warndon, Worcester WR4 9SW. Tel. 01905 754624 Fax. 01905 754619 W orcester, Bosch Group is a brand name of Bosch Thermotechnology Ltd. www.worcester-bosch.co.uk...