Table of Contents Table of Contents FOR THE USER ......................5 Important information ..................5 This is how your heat pump works ..............6 Technology in and around the heat pump ........................6 Component parts of the heat pump ..............8 LWM model ................................8 LW model ................................9 Control unit ....................
Table of Contents FOR THE INSTALLER ....................39 Important information to the installer ............... 40 Checklist ......................40 What the shipment includes ................41 Dimensions and plumbing connections ............. 42 The heat pump and collector hose in general ............. 43 Transporting the heat pump ..........................43 Positioning the heat pump .............................43 Maximum working temperatures ..........................43...
Important information Your new heat pump represents a new generation of heat pumps from Bosch. It contains numerous functions to control the temperature and production of hot water in the house. The control unit includes a control and monitoring function that stores important settings about the heat Note pump’s operation and maintenance.
This is how your heat pump works This is how your heat pump works The heat pump collects stored solar energy The heat pump has been manufactured for easy and reliable use as well as to provide your house with inexpensive and environment friendly heating.
This is how your heat pump works “The cold side” “The hot side” Heat transfer ﬂ uid pump 0ºC +100ºC 0ºC Floor heating -3ºC Soil -10ºC Radiator Circulation pump Heat pump Rock Fan-assisted radiator Heat transfer ﬂ uid in. The heat pump collects stored solar energy. It contains a heat transfer ﬂ uid which is a solution of water and antifreeze, glycol.
Component parts of the heat pump Component parts of the heat pump LWM model Three-way valve The valve switches between heating Electrical connections the heating water and hot water. Connections for the mains supply as well as sensors. Venting nipple The nipple is used to vent the heating Control panel water in the hot water cylinder.
Component parts of the heat pump LW model Electrical connections Three-way valve Connections for the mains supply The valve switches between as well as sensors. heating the heating water and hot water. Control panel The control panel has a back- Particle ﬁ...
Control unit Control unit The control unit is the brains of the heat pump. It 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 Three-way house.
Control unit The control unit’s two methods to control the heat pump The control unit uses two different methods to control the heat pump. These two methods are: Control with an outdoor sensor and Control with an outdoor sensor supplemented with a room sensor. Control with outdoor sensor Control with an outdoor sensor is the most common method used by the control unit to control the heat pump.
Control panel Control panel All settings are made from the control panel. It also displays heat production statistics and information about different alarms. When you have made your settings, the control panel makes sure they are saved in the control unit to carry out your wishes.
Control panel Menu dial The menu dial is used to scroll through the menu display windows. Turn the menu dial clockwise (to the right) to move down through the menus. Turn the menu dial anti-clockwise (to the left) to move up through the menus. You also determine the values of different settings by using the dial.
Basic functions - Customer level 1 Menu outline for Basic functions (Customer level 1) Reg 637 Note 040622 16:08:15 Tu temp. Info Menu Each menu is numbered in the lower right-hand corner; this indicates which main display it is associated to. Main menu Main menu Main menu...
Basic functions - Customer level 1 The heat pump is in standby mode. STANDBY No rad heat required No need for hot water mode The heat pump is producing hot water. You see at which temperature HOTWATER MODE the heat pump will stop and the present temperature. Note that the stop Heat pump only Supp.
Basic functions - Customer level 1 Change the cur ve slope The heat pump’s production of heat is adjusted by increasing or decreasing the curve slope in the Temp. incr. / decr. menu. This is especially effective in cold weather conditions. Return temperature (ºC) Curve slope (0-10) Cur ve slope:...
Basic functions - Customer level 1 Fine-tune the heat cur ve The heat curve can also be ﬁ ne-tuned. Fine-tuning means that you offset the heat curve in parallel. Fine-tuning is done from the Temp. ﬁ ne-tune menu. The diagram for ﬁ ne-tuning shows how the dashed line has been offset upwards in parallel.
Basic functions - Customer level 1 Set the desired room temperature Note If you have a room sensor connected to the heat pump you can set the required temperature in the room from the Room temperature menu. From Extra functions (Customer level 2) you can also set how much you want the sensor to The example describes how to set the required room temperature with the inﬂ...
Basic functions - Customer level 1 Heating and hot water settings Move to the temperature settings for heating on Customer level 1 like this: 1. Press the Menu button in the initial menu. Reg 637 Main menu Indoor temperature 040622 16:08:15 Tu settings temp.
Basic functions - Customer level 1 All menus relating to temperature sensors Note All the menus associated with the heat pump temperature sensors are shown All sensors are not included as below. Note that you cannot make any settings in these menus, only read the standard on the heat pump, some are current values.
Extra functions - Customer level 2 Extra functions (Customer level 2) ( Initial menu) Reg 637 The section Basic functions (Customer level 1) contains the functions that you will 040622 16:08:15 Tu probably use the most and which you will receive the most beneﬁ t from. However, temp.
Extra functions - Customer level 2 Temperature settings Proceed as follows to access the temperature settings for the heating on Customer level 2: Main menu 1. Press the Heat button until Access = CUSTOMER2 is displayed. Indoor temperature settings 2. Press the Menu button. Return Select 3.
Extra functions - Customer level 2 Set extra heat curve with mixing valve If you have ﬂ oor heating combined with radiators, you should set an extra heat curve with mixing valve. The mixing valve is a valve that lets water through in different amounts.
Extra functions - Customer level 2 Hot water settings Hot water peak Hot water range for Recurring increase in the hot water temperature hot water peak The Range for hot water peak menu is used to set the range for a recurring Return Select increase in the hot water temperature.
Extra functions - Customer level 2 5. Turn the menu dial until the value 22:00:00 is displayed. Timer control HP 22:00-06:00 6. Press the right-hand arrow twice (->) to move the cursor two steps to Return <- -> the right. Timer control HP 7.
Extra functions - Customer level 2 3. Turn the menu dial clockwise until you reach the menu Op. time Main menu readings on HP and add. heat (menu 7). Op. time readings HP and add. heat Return Select 4. Press the Select button and scroll through the menus using the menu dial.
Extra functions - Customer level 2 3. Turn the menu dial clockwise until you reach the menu Clock, setting Main menu time and date (menu 10). Clock, setting time and date Return Select 4. Press the Select button and make your settings using the menu dial and menu buttons.
Maintenance Maintenance Your heat pump requires a minimum of maintenance, however, we still Warning recommend some servicing to get optimal performance from your heat pump. Check the following items a few times during the ﬁ rst year. You For reasons of safety the main power should then check them once or twice a year: supply must be disconnected before working on the heat pump.
Maintenance Note Particle ﬁ lter On the cold side the particle ﬁ lter is located outside of the heat pump. It The task of a particle ﬁ lter is to ensure no particles or dirt enter the may be concealed by insulation mate- heat exchangers.
What to do if a fault occurs What to do if a fault occurs The control unit has an advanced monitoring system that gives alarms if anything unforeseen happens in the heat pump. Most alarms are rectiﬁ ed by you the user and there is never any risk that you can damage anything in the heat pump when you reset an alarm.
What to do if a fault occurs Fuses and reset buttons on the heat pump LWM model LW model Particle ﬁ lter Cleanable, with shutoff switch. Fuse 1 Reset for motor cut-out compressor. Fuse 2 Reset switch for the heat pump’s miniature circuit-breaker.
What to do if a fault occurs Motor cut-out compressor (MB1) Possible cause 1: Intermittent fault or overload on the power supply. The menu display shows: Action: 1. Press the Ackn. button. Alarm (MB1) The alarm indication goes out even if the fault has Compr.
What to do if a fault occurs Compressor temperature T6 (GT6) The menu display shows: Alarm (GT6) Compressor superheat Possible cause 1: The working temperature of the compressor is 040622 16:08:15 too high. Info Ackn. Action: 1. Press the Ackn. button. 2.
What to do if a fault occurs High pressure switch (HP) Alarm (HP) High press. switch Possible cause 1: Air in the heating system. 040622 16:08:15 Action: 1. Press the Ackn. button. Info Ackn. 2. Check whether there is air in the radiators. 3.
What to do if a fault occurs Power failure (3-phase) The heat pump maintains all its settings in case of a power failure. When the Alarm power returns the heat pump automatically starts up according to the previous Power failure 040622 16:08:15 settings.
What to do if a fault occurs High return to the heat pump T9 (GT9) There is a sensor T9 (GT9) in the heat pump, which for reasons of safety, Alarm (GT9) stops the compressor if the temperature of the return water from the High return HP 040622 16:08:15 radiators becomes too high.
What to do if a fault occurs Sensor fault All sensors connected to the heat pump can give an alarm when defective. In the Alarm (GT1) example to the right it is sensor T1 (GT1), Return radiator, which has given an Sensor return rad.
What to do if a fault occurs Anode error Possible cause 1: Temporar y error. Alarm Action: 1. When large amounts of hot water are used (e.g. Anode error 040622 16:08:15 with a bath) the alarm may be given without there Return Info being a fault.
For the Installer Installation of the heat pump should be performed by a qualiﬁ ed installer. The For the Installer chapter includes a section suggesting how the heat pump installer should install and commission the heat pump. The installa- tion consists of a plumbing section and an electrical section. These provide technical data such as measurements, wiring diagrams and installer menus.
Important information to the installer / Checklist Important information to the installer This manual provides you with all the information necessary to install the heat Warning pump. The manual is divided into several sections. The order of these is based on the recommended installation sequence.
What the shipment includes What the shipment includes The following components are included in the delivery of the heat pump: Particle ﬁ lter with screen Rubber feet Quantity: 2 (LWM model) Quantity: 4 Quantity: 1 (LW model) Outdoor sensor T2 (GT2) with cable Circlip pliers Quantity: 1 Quantity: 1...
Dimensions and connections Dimensions and plumbing connections The following illustrations show the dimensions of the heat pump and plumbing connections. All measurements are stated in millimetres. LWM model 1800 Electrical connections Return radiator Flow radiator Cold water in Hot water out HTF (coll) in HTF (coll) out LW model...
The heat pump and collector hose in general The heat pump and collector hose in general Transporting the heat pump The heat pump should always be transported and stored in an upright position. Otherwise the suspension ﬁ ttings inside the compressor can be damaged. If the heat pump must be tilted during entry to the installation site, this should be done for as short a time as possible.
The heat pump and collector hose in general Collector hose Note The task of the collector hose is to convey the heat transfer ﬂ uid through The depth and length of the collector the ground or lake to fetch a few degrees of heat. The hose consists of a hose are described in detail in the con- thin-walled plastic hose of the type PEM 40 x 2.4 PN 6.3.
The heat pump and collector hose in general Outline drawings for the collector hose in the ground and through a wall The drawings below show how to run the collector hose in the ground and through a wall. The soil ﬁ lling around the hose must not contain stones. If the hose is ploughed down, you must use equipment that guarantees the hose is laid at the right depth.
The heat pump and collector hose in general You can connect the collector hose to the heat pump with one or more circuits. In a multi-circuit solution, the collector hoses are connected in parallel as illustrated below. The parallel hoses are connected to two distributors. Each coil should have a shutoff valve and a control valve.
Preparations before connection Preparations before connection In some situations the heat pump may need extra preparations before it is commissioned. Such preparations may be: Moving the heat transfer ﬂ uid pipe for side entry Supplement the heat pump with a ground water system Moving the heat transfer ﬂ...
Preparations before connection Side installation on the right-hand side Proceed as follows to switch the heat transfer ﬂ uid pipes from top installation to side installation on the right: 1. Remove the blanking washers (ﬁ gure 1). Figure 1 2. Dismantle the sensor and both heat transfer ﬂ uid pipes. The pipes run to the top of the top plate.
Preparations before connection Side installation on the left-hand side Proceed as follows to switch the heat transfer ﬂ uid pipes from top installation to side installation on the left: 1. Switch the heat pump’s right- and left-hand side covers. Figure 1 2.
Preparations before connection Supplementing the heat pump with a Note groundwater system The intermediate heat exchange should be connected against the ﬂ ow. If the heat pump is installed for groundwater instead of rock, soil or lake, it In addition, the pipe from the ground- must be supplemented with an intermediate heat exchanger.
Connecting the heat pump to the heating system Connection to groundwater system: electrical connection Warning 1. Connect the ground water pump to the mains via a motor cut-out and a contactor. The control to the contactor (CK3) uses 230 V, which is taken If a single phase pump is used, it from the terminals L and N (P3) in the heat pump.
Connecting the heat pump to the heating system Connecting to the heating system without a bypass: The heat pump can be connected to the heating system without a bypass, as the circulation in the heat pump and the heating system is managed by the integrated pump G2 (P2). This also means the main pump G1 (P1) is omitted. An absolute prerequisite for this type of connection is that a minimum ﬂ...
Connecting the heat pump to the heating system Connect heat pump LWM model to the heating system Application: The principle is based on ﬂ oating condensing in the heat pump (curve control) and additional heat from an electric cassette. The built-in control unit controls the heat pump using the outdoor sensor T2 (GT2) and the return sensor T1 (GT1) according to the outdoor compensated control curve.
Connecting the heat pump to the heating system Connect heat pump LW model to the heating system Application: The principle is based on ﬂ oating condensing in the heat pump (curve control) and additional heat from an electric cassette. The built-in control unit controls the heat pump using the outdoor sensor T2 (GT2) and the return sensor T1 (GT1) according to the outdoor compensated control curve.
Connecting the heat pump to the heating system LWM model: individual temperature control in each room, increasing volume of internal water and bypass This solution is viable if you want to control the temperature of each room, for example if you use thermostat valves on the radiators in each room.
Connecting the heat pump to the heating system LW model: individual temperature control in each room, increasing volume of internal water and bypass This solution is viable if you want to control the temperature of each room, for example if you use thermostat valves on the radiators in each room.
Connecting the heat pump to the heating system LWM model: Increasing volume of internal water without bypass This solution increases the overall volume of the installation if the volume of the heating system is inadequate, for example with one or two fan-assisted radiators. C11: Expansion tank C21:...
Connecting the heat pump to the heating system LW model: Increasing volume of internal water without bypass This solution increases the overall volume of the installation if the volume of the heating system is inadequate, for example with one or two fan-assisted radiators. C11: Expansion tank C21:...
Connecting the heat pump to the heating system Filling water in the heating system This is what to do: 1. Open and close the tap between the cold water system and the heating system in short time intervals. 2. Read the pressure on the pressure gauge. 3.
Connecting the heat pump to the heating system 7. When the system is full and air no longer comes from the return pipe run the system for at least a further 30 minutes. You can also start the heat transfer ﬂ uid pump to speed up the air venting. Enter manual operation under menu 5.3 and start the pump G3 (P3).
Connecting the heat pump to the heating system Table 1: Mixing ratio in litres/metre 40/35Hose type: 40/35 40/35Hose type: 32/28 Hose type: 20/17 Anti-freeze type Water (l) Anti-freeze Water (l) Anti-freeze Water (l) Anti-freeze (l) Bioethanol 0,71 0,29 0,42 0,18 0,16 0,07 Propylene/...
Connecting the heat pump to the power supply Connecting the heat pump to the power supply Make sure the electricity has been switched off before connecting the heat pump to the mains. Check that cables and printed circuit cards are intact. Warning High and low current cables should be routed separately in order to avoid interference on the sensors.Wiring diagram is supplied...
Connecting the heat pump to the power supply External connections to the heat pump These are the external connections that must be made for the heat pump: Power supply 3-phase: The power supply is connected to terminals L1, L2, L3, N and PE. In the event of a possible phase sequence fault the heat pump will trip the alarm 3-phase incorrect.
Connecting the heat pump to the power supply Connecting the general alarm, external input and load monitor General alarm The general alarm is activated irrespective of which alarm has tripped. When a general alarm is required on the heat pump, it is connected according to the diagram opposite.
Commissioning the heat pump Installer and service menu (I/S) As the installer you have your own section of menus for settings, e.g. for commissioning. These are accessed from the control panel by holding Warning down the menu button for approximately ten seconds. The Installer and service menu (I/S) The menu displays are divided into lines and each display has a number to is only for installers.
Commissioning the heat pump Commissioning the heat pump The heat distribution and heat transfer ﬂ uid circuits should be ﬁ lled and Note fully vented before commissioning. Also check that there are no leaks. Further important information on As many radiators as possible should be fully open when connecting to an control unit can be found in the user existing water system.
Commissioning the heat pump Menu displays you might need to adjust or check Temperature settings Set the hysteresis for heat pump on/off switching on the return sensor T1 (GT1). A Temperature settings lower value gives a shorter range between start and stop. Less than 5ºC should be Heat curve avoided.
Commissioning the heat pump Wait approximately 5 minutes after switching off the compressor before activating rapid restart of the heat pump, to allow the cooling circuit time to equalise pressure. In the menu 5.7 you set whether the heat pump, additional heat and hot water charging should be controlled externally.
Commissioning the heat pump The function shows the time remaining until the heat pump starts again Timer readings after a previous stoppage. The heat pump will not start if there is no read start delay heating or hot water need. Return Select Setting the additional heat...
Commissioning the heat pump Drying program for ﬂ oor tile Note When the heat pump has been installed in a newly built house with ﬂ oor heating, the Drying of ﬂ oor tile function can be used. During drying operations the heat The function is designed to slowly heat up the ﬂ...
Commissioning the heat pump Manual test run of the heat pump Instead of starting the heat pump directly in normal mode, you can manually test run Commiss./Service Manual operation of the pumps and valves. This is recommended as in this mode you can easily ﬁ nd any all functions possible faults.
Commissioning report Client / Installation address: Installer: Type of equipment: Commissioning date: Serial number: Type of heat (soil heat, rock heat, other...): Total length of collector: Other components of the installation: Additional heat Room sensor T5 (GT5) ..........Hot water heater type Hot water heater temperature sensor T3 ..........
Commissioning report Checks on concentrations carried out (collector hose and heating side) ..................... Functional test carried out Menu settings 1.1, 1.4, 5.2 and 5.4. carried out The instructions about how to use the heat pump have been sent to the client / to the user Documentation about the apparatus has been handed over Date and signature of the installer:...
Technical information Technical information The heat pump’s factory settings Sensor table This table indicates the factory settings for all the settings likely to be This table indicates the values of the sensor changed by the ﬁ tter. resistors to different temperatures. Menu Factor y settings Temperature (...
Technical information Technical information for three-phase models Compress 3000 14 LW 17 LW Emitted/ Supplied output at 0/35°C 14.4/3.1 16.7/3.7 Emitted/ Supplied output at 0/50°C 13.9/4.2 16.2/4.9 Minimum ﬂ ow heating side 0.35 0.40 Nominal ﬂ ow heating side 0.50 0.57 Maximum pressure available heating side (at nominal ﬂ...