Air source heat pump with dc inverter (split type) (63 pages)
Summary of Contents for SERO BWA-SS-6
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INSTALLATION AND MAINTENANCE INSTRUCTIONS GROUND SOURCE HEAT PUMP ( ALL IN ONE ) MODEL : BWA-SS-6 BWA-SS-8 ( 230V / 50HZ ) BWA-SS-10 BWA-SS-12 BWA-SS-16 ( 3x400V / 3 / 50Hz ) JULY 2009 Please read this operation manual before using the Heat Pump...
Contents System description Principle of operation ..........3 Main Menu Information ......... 22 Sub-menu Operation..........22 Unit Description ............ 3 Sub-menu Heat Curve ........... 23 Principle of heatpump ........... 4 Sub-menu Temperature ........24 Control panel Sub-menu Integral ..........24 Layout ..............
System description Principle of operation BWA-SS series consists of a heat pump, water heater, The brine emits its heat to the refrigerant in the heat electrical module, circulation pumps and a control sys- pump’s evaporator. It then vaporises and is com- tem.
System description Unit Description In order to get the best results from the climate system BWA-SS series you should read through the section For the System manager in these Installation and Maintenance instructions. BWA-SS series is a climate system for heating houses and apartment buildings as well as industrial properties.
System description Principle of heat pump A heat pump can exploit the energy contained in natural heat sources. Or, to put it differently, the heat pump ”collects” heat energy from the heat source. This makes the heat pump a very environmentally friendly and economically sound alternative for space heating.
Control panel Layout ROOM 20 Display button OPER. AUTO Left Right button button Down button Power On/Off Explanation Control Panel The control panel of BWA-SS features a graphic display five control buttons Beside the control panel you will find the User’s Manual, a short description of how to increase and reduce room temperature, and a label with name and phone number of dealer.
Control panel Functions The control computer is operated with the help of a user friendly menu system that is displayed on the contr ol panel. There is a main menu and four sub-menus accessible from the main menu. The menus are described in detail further down.
General information for the installer Transport and storage Inspection of the installation The BWA-SS series must be transported and stored Current regulations require the heating installation to upright and dry. The BWA-SS series may however be be inspected before it is commissioned. The inspec- carefully laid on its back when being moved into tion must be carried out by a suitably qualified person a building.
Pipe connections General Pipe installation must be carried out in accordance with current norms and directives. The heat pump can NOTE! operate up to a return temperature of about 58* °C and an outgoing temperature of about 70* °C from the The pipe system needs to be flushed heat pump.
Pipe connections Pipe connections (heating Pipe connections (water heater) medium) The heat pump´s water heater must be fitted with the necessary valve equipment. Pipe connections for the heat medium side are made at the top. All required safety devices, shut-off valves (as close to the heat pump as possible), and particle VENTING VALVE filter (supplied) are fitted.
Pipe connections Pump capacity diagrams, heating medium side BWA-SS-10 BWA-SS-12 BWA-SS-6 BWA-SS-8 BWA-SS-16 Available Available pressure pressure Tillgängligt tryck Flow Flow WILO RS-25/8 WILO RL-25/7.5 How to adjust the rate of flow pump WILO RS-25/8 adjustable to adjust the flow: 1, 2, or 3.
Electrical connection Connect the power cord ( 230V / 50 HZ ) ( 3X400V / 3 / 50 HZ ) NOTE! Electrical installation and service must be carried out under the supervision of a qualified electrician in accordance with the stipulations in force.
Electrical connection Connecting The Room Temperature Sensor Room temperature sensor Room temperature sensor RT=Room temperature sensor Connecting The Outside Temperature Sensor Outside air temperature sensor Outside air temperature sensor OCT=Outside air temperature sensor...
Electrical connection Part of wiring diagram 2.5mm2 terminal connection From Fuse 4 From Electrical heater 1 From Fuse 5 From Electrical heater 2 From 6mm2 terminal / N From Fuse 6 From Electrical heater 3 From Neutral line common terminal From AC contactor / L1 From Compressor / W From AC contactor / L2...
Commissioning and adjusting the container with tap water until it emerges from Preparations the return hose without being mixed with air. Before starting up the system, check that the heating, 10. Stop machine, heat medium water pump stop running. collector and hot water circuits are full and thoroughly Depressing the white manual lever lightly and then vented.
Commissioning and adjusting Inspection NOTE! Adjust the brine and the heating medium pump The compressor must not be forced to start with periods shorter that 1 start 1). Read the brine temperatures on the panel. The dif- per 15 minutes. ference between these two temperatures should be 2—5 °C when the system has come into bal- ance.
Control General information Menu Navigation The right-hand button on the con trol panel is used to open the desired menu. The left-ha nd button is used to return to the pr evious men u. The up and down butt ons are used to navigate betw een the parameters of a menu. A cu rs or (arrow) on the left-hand side of the display indica tes which me nu can be op en ed .
Control Menus Main Menu INFORMATION To open the main menu INFORMATION, press the right- or left-hand button once. T o select the desired sub-menu use the up or down button. Open the menu by pressing the right-hand button once. To return to the main menu, press the left-hand button once. Sub-Menu OPERATION This menu is used for the selection of operating mode.
Control Menus • OPERATION OFF Heat pump is turned off. The following text is displayed on the control panel: “OPERATION OFF “ If the heat pump will be put in OPERATION OFF mode during winter, please remember to let out all the water the heating system to avoid any damage caused by freezing.
Control Menus Sub-Menu TEMPERATURE This menu shows the different temperatures of the heating system. All temperature changes registered over the last 60 minutes are stored in the control system and can be viewed in the shape of graphs. Table 2: Menu TEMPERATURE Menu Text Description Adjustable by:...
Control Menus Menu Text Description Adjustable by: When the value (testing) reaches the value setting by user, USER the system will be closed. CMP.A When the value (testing) reaches the value setting by user, USER the compressor will be start-up.And the value(testing) under the value(setting),the compressor will be closed.
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Control Degree Minute s(DM) instruction Before the Degree Minute reach - 60 (adjustable) ,the compressor is off, but when the Degree Minute reach - 60 (adjustable) ,the compressor automatic start,and the flow temperature will begin increase. than desired temperature) when the actual water supply temperature reach / higher than Higher the desired temperature, the DM will be changed.
Control Menus Sub-Menu OPERATING TIME Table 3: Menu OPERATING TIME Menu Text Description Adjustable by: HEATPUMP Total operating hours of heat pump since USER installation. Operating time will not be reset to zero. ADD 1 Total operating hours of auxiliary heater USER (3kW) since installation.
Control Menus Sub-Menu RESET Reset to factory setting value. Sub-MenuMAN TEST How to enter the Sub-Menu MAN TEST: You need to choose the " M AN TEST " on the main menu ( INFORMATION) And press the right button for 3 second . The Sub-Menu MAN TEST contains ADD1 / ADD2 / ADD3 / HEAT PUMP / 3 WAY / BRINE PUMP / WARM PUMP ;...
Control Adjustments to be made regularly Heat curve CURVE Supply line temperature Relation of outside air temperature to supply line temperature Outside air temperature Adjustment of the CURVE value The heat curve will be adjusted by the CURVE value. This value indicates the supply line temperature to the radiators at 0°C outside temperature.
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Control Adjustments to be made regularly When enter ‘Room heat’ mode, user could control compressor and electrical heater through regulate heat curve or DM (degree minute). under a certain ambient temperature ,the time start of compressor is determined by degree minute(DM). Now we are giving two situations to explain.
Control Adjustments to be made regularly Adjus of ROOM value As mentioned above, you can also adjust heat curve and indoor temperature by changing the ROOM value. If you use ROOM value to adjust the heat curve, the gradient does not change, i.e. it doesn’t become steeper or flatter.
Control Adjustments to be made regularly CURVE CURVE CURVE Change of the value for CURVE 0 Change of the value for CURVE + 5 Change of the value for CURVE -5 If you wish to change a specific part of the heat curve: Open the main menu INFORMATION by pressing the right- or left-hand button once.You will find the cursor at the sub-menu OPERATION.
Control Adjustments to be made regularly Adjustment of the HEAT STOP value The HEAT STOP function stops all production av radiator heat when the outside air temperature is equal to or higher than the value entered for heat stop.When the heat stop function is activated, the circulation pump will be turned off except when warm water is being produced.
Control Adjustments to be made regularly Graph of recent changes in TEMPERATURE All temperatures registered during the last hour can be viewed in the sub-menu TEMPERATURE in the shape of a graph. This will enable you to monitor changes in the different system temperatures CURVE There is a graph available for all temperatures, except for the ROOM temperature,where you can only view the setpoint value.
Control Maximum Return Line Temperature The maximum return line temperature, i.e. temperature of the water returning from the heating system, should be adapted to each individual installation. The correct temperature value for your system will be entered by your installation contractor in connection with installation and can be adjusted later. Warm Water Production The temperature of the water distributed to the water heater is controlled by the regulating pressure switch and cannot be adjusted.
Control Regular Checks Check of Operating Mode In the event of an alarm, The background light of LCD will flash and an alarm message will be displayed. ALARM AND.HEAT OVER Check the alarm indicator regularly to make sure that the heat pump works properly. You would not always notice if there is something wrong, as the auxiliary heater would start automatically (provided, of course, operating mode AUTO was selected).
Control Regular Checks Checking the Water Level of the Heating System The pressure of the heating system should be checked once monthly. The pressure, shown on the external pressure gauge, should be 1-1,5 bar. If the value is below 0.8 bar with cold water in the heating system, more water must be added (applies to a closed expansion vessel).
Control Alarm Messages In the event of an alarm message, try to re-start the unit with the safety switch. If this does not work, try to solve the problem with the help of the table below. Call your installation contractor if you need help.
Control Terminology and Abbreviations Evaporate the evaporator, energy from the heat source is absorbed by the refrigerant passing through the evaporator. The refrigerant turns into gas. (See ”Heat Pump Principle” on p. 4). INTEGRAL INTEGRAL is the heat balance of the heating system. Production of heat is regulated acc. to a calculated heat demand value.
Description of the switch board Function Function of manual switch board: When test or repair the machine, the compressor, Ground water cycle pump and water cycle pump can be force manual startup. A0 1 : Control the compressor; AA M : Control the Ground water cycle pump; BA M : Control the water cycle pump.
Dealing with malfunctions Draining, heat medium side Close the shut-off valves in heating medium system. Open the drain valve (77). A small amount of water runs out, however, to fully empty the heating medium side requires the connector that joins the heating medium side and the connection on the heat pump VB-flow to be loosened a little to allow air to enter so the remaining water can run out.
List of components Compressor Top board Low pressure pressostat Right side board Left side board Low pressure needle valve Glass upper door High pressure needle valve Glass lower door Brine in pipe Front board Brine out pipe Heating return pipe Board for fixing control panel drainpipe for Water tank Collector,brine out...
Technical specifications Technical specifications 230 V IP 21 Refrigerant : R410A Type ( BWA-SS SERIES ) 8.15 ( KW ) Heating Capacity at 7/35 °C ( KW ) Heating Power Input at 7/35 °C 1.44 1.95 Operational voltage 230 V / 50 HZ Starting current, compressor Heating current, compressor Operating curr.
Technical specifications Technical specifications 3 x 400 V Refrigerant : R410A IP 21 Type ( BWA-SS SERIES ) 9.85 ( KW ) 12.6 16.0 Heating Capacity at 7/35 °C 2.45 ( KW ) 3.04 3.90 Heating Power Input at 7/35 °C Operational voltage 3 x 400 V / 3 / 50 Hz Starting current, compressor...
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