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INSTALLATION AND MAINTENANCE INSTRUCTIONS DC INVERTER AIR SOURCE HEAT PUMP - ALL IN ONE - MODEL: DC AWA-SS-7 / DC AWA-SS-9 DC AWA-SS-12 / DC AWA-SS-15 (230V/50Hz) AIXIA...
Inspection ............. 21 Dimensions and setting-out coordinates ....58 Adjust the heat medium pump ......21 Dimensions of the DC AWA-SS-7 outdoor unit ..59 Readjusting, heat medium side ......21 Dimensions of the DC AWA-SS-9 outdoor unit ..59 Emptying the water heater ........
System description Principle of operation DC AWA-SS series consists of a heat pump, water heater, The air emits its heat to the refrigerant in the evapo- electrical module, circulation pumps and a control sys- rate of Outdoorunit. It then vaporises and is com- tem.
System description Unit Description In order to get the best results from the climate system DC AWA-SS series you should read through the section For the System manager in these Installation and Maintenance instructions. DC AWA-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 Display button OPER.WARMWATER Left Right button button Down button Power On/Off • One button pointing upwards marked with a up arrow • One button pointing downwards marked with a down arrow • One button pointing to the right marked with a right arrow •...
Control panel Functions The control computer is operated with the help of a user friendly menu system that is displayed on the control panel. There is a main menu and several 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 DC AWA-SS series must be transported and stored Current regulations require the heating installation to upright and dry. The DC AWA-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 7KH SLSH V\VWHP QHHGV WR EH IOXVKHG 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 The heat pump should be supplemented with an elec- at the top.
Pipe connections How to connect the copper pipes Piping Connecton 1. Open the cover of the outdoor unit. 2. Connect the pipe to the indoor unit and outdoor unit. Wipe the quick connectors with clean cloth to prohibit dust and impurity entering the pipes. Align the centre of the pipe and fully screw in the angular nuts with Finger.
Pipe connections The step and diagram of collect refrigerant If the outdoor unit needs to be disconnected and moved to another place, please recycle the gas back into the compressor according to the following steps before doing the disconnecting: 1.Turn to the menu: OPERATION---MAN TEST SET TO 2.
Pipe connections Pump capacity diagrams, heating medium side DC AWA-SS-7 / DC AWA-SS-9 / DC AWA-SS-12 Available pressure Flow WILO RS-25/8 DC AWA-SS-15 Available pressure Tillgängligt tryck Flow WILO RL-25/7.5...
Pipe connections How to adjust the rate of flow pump adjustable to adjust WILO RS-25/8 the flow: 1, 2, or 3. pump adjustable to adjust WILO RL-25/7.5 the flow: 1, 2, or 3.
Electrical connection Connecting The Room Temperature Sensor ROOM Room temperature sensor Room temperature sensor ROOM=Room temperature sensor Connecting The Outside Temperature Sensor Outside air temperature sensor Outside air temperature sensor PO=Outside air temperature sensor Connecting The Defrost Temperature Sensor Outdoor unit PG=Defrost temperature sensor...
Electrical connection 1.5mm2 terminal connection FEED ROOM RETURN 2.5mm2 terminal connection From Fuse 1 From Electrical heater 1 From Fuse 2 From Electrical heater 2 From K1 N From Fuse 3 From Electrical heater 3 From K1 N From Electrical heater From From Compressor From...
Electrical connection Outdoor Unit Wiring Diagram of DC AWA-SS- 7 / 9 DC AWA-SS-7 DC AWA-SS-9 Outdoor Unit Wiring Diagram of DC AWA-SS- 12 / 15 DC AWA-SS-12 DC AWA-SS-15...
Commissioning and adjusting Preparations Before starting up the system, check that the heating, hot water circuits are full and thoroughly vented. Check the pipe system for leakage. Filling and venting the heating medium system 1. Check the heating medium system for leakage. 2.
Commissioning and adjusting Inspection Adjust heat medium pump Readjusting, heat medium side Check the flow temperature and the return Air is initially released from the hot water and venting may be necessary. If bubbling sounds can be heard temperature on the control panel. The difference from the heat pump, the entire system requires further between these two temperatures, with floating venting.
Control General information Control Panel The control panel of DC inverter series features a graphic display, five control buttons. OPER.WARMWATER Functions The control computer is operated with the help of a user friendly menu system that is displayed on the control panel.
Control Menus Main Menu INFORMATION To open the main menu INFORMATION, press the right-hand button once. To 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. Return Open next...
Control Menus Sub-Menu OPERATION WARMWATER Water tank heating( warmwater) mode: when enter this mode( under this mode has a program call compressor restart determined by water temperature degeneration’), heat pump only heat the water tank. The unit stops running as soon as water tank’s temperature gets to setting temperature, then compressor restart determined by water tank temperature degeneration( CMPDIF TEMP) ROOMHEAT Room heating mode: when enter this mode, heat pump only heat the room.
Control Menus ADD.HEAT ON or OFF ON select ON, electrical heater is running normally. OFF select OFF, only switch off electrical heater the others are running normally. If you wish to change operating mode: Open the main menu INFORMATION by pressing the right-hand button once. You will find the cursor at the sub-menu named OPERATION.
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. WARMWT water tank temperature, the first value is water tank real temperature, the second value in ‘...
Control Menus Menu Text Description Adjustable by When the value (testing) reaches the value setting by USER user, the system will be closed. When the value (testing) reaches the value setting by USER user, the compressor will be start-up. And the value CMP.A (testing) under the value (setting), the compressor will be closed.
Control Degree Minute s(DM) instruction For example : the DM was cumulated to -160 in this time. 1 minutes later when the Feed water temperature higher than desired temperature for 1 . 10X1=10 , Degree Minute= -150; Another 1 minutes later when the Feed water temperature higher than desired temperature for 2 .
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Control Menus After compressor start running, when ‘setting return water temperature – actual return water temperature constant temperature setting, and the electrical heater does not start, then enter constant temperature control The temperature and its frequency during constant temperature program. Recorded by the above chart T=T1-Ts+2 , T has 10 areas, from 0 to 9, the rule of constant temperature program’s frequency is...
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Control Menus Sub-Menu TIMESETTING How to enter the Sub-Menu TIMESETTING: You need to choose the " TIMESETTING" on the main menu ( INFORMATION). Press the right button. Then " TIMESETTING" menu can be seen. TIMESETTING use button Up and down to select each item. DATE TIME To display year, month, date.
Control Menus ADD TIME ON When choose mark “ ”, the Auto start function of electrical heater is active, choose “×”for cancel this function. If this function is active, every day during the timing, the electrical heater will work normally. ADD TIME OFF When choose mark “...
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Control Menus When choose Intelligent defrost mode, the Defrost start temperature will be the same as above form when the ambient temperature is lower than 2 degree, all the value of the form is factory setting and they are adjustable from 0 to -30 degree. Press button Right 5 seconds to enter the form, operator can select any defrost start temperature and revise it.
Control Menus Sub-Menu SETTING ADD DIF TEMP OUTADD.HEAT EMERGENCY1 (ON or OFF) Emergency mode 1 emergency 1 ON or OFF factory setting is OFF(after select emergency mode, the unit will continuously execute the same objective (room heating only, water tank heating only, or auto) When select ON, compressor will be switch off, only electrical heater, water pump or other temperature protection are available.
Control Menus ADD START : ( 10 to 65 degree adjustable , factory setting is 45 degree ) Electrical heater start water temperature, it is adjustable from 10 - 65°C, factory setting is 40°C, this means when compressor heat the water temperature over 40°C, then allow the electrical heater to start, this setting is for energy-saving and water tank heating (WARMWATER) only.
Control Menus ADD2 Total operating hours of auxiliary heater (6kW) since installation. Operating time will can not will not be reset to zero. ADD3 Total operating hours of auxiliary heater can not (9kW) since installation. Operating time will will not be reset to zero. Sub-Menu RESET Reset to factory setting value.
Control Adjustments to be made regularly Most settings will be made by the installation contractor in connection with installation. Adjustments to be made regularly by the user are the following: • Selection of operating mode • Adjustment of desired room temperature by changing the ROOM value. •...
Control Adjustments to be made regularly CURVE is program that adjusts feed water temperature according outdoor ambient temperature, factory setting is ambient temperature 0 as feed water temperature 40 , that is CURVE =40; the value of CURVE is adjustable from 22 to 56 .
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Control Adjustments to be made regularly If you wish to change the ROOM value: Press the ”up” or ”down” button once to open the ROOM value for adjustment. Increase or reduce the preset value using the ”up” or ”down” button so that the desired room temperature is reached.
Control Adjustments to be made regularly Adjustment of Part of the Heat Curve At outdoor temperatures between -5°C and +5°C part of the heat curve may need adjusting if the indoor temperature does not stay at the preset ROOM value. For this reason, the control system includes a function adjusting the curve at three outside temperatures: -5°C, 0°C, +5°C.
Control Adjustments to be made regularly Adjustment of the MIN and MAX value The MIN and MAX value is the lowest respectively highest value that is allowed for the supply line temperature. Adjusting the minimum and maximum supply line temperature is particularly important if your home has floor heating.
Control Adjustments to be made regularly Press the ”down” button to move the cursor to HIGH T STOP or LOW T STOP. Open the selected parameter by pressing the right-hand button once. The cursor moves to HIGH T STOP or LOW T STOP. Raise or lower the value, using respectively the ”up”...
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 WATER FLOW TROUBLE OR AND 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 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.
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Control Alarm Messages The cause of alarm ‘IPM MODULE’ could be: 1 The communications between Module and outdoor main circuit board is jamming; 2 Module is jamming and can not detect current or compressor; 3 Module can not start compressor; 4 Module’s rated 15VDC voltage is not steady 5 Module’s current overload How to do:...
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Control Alarm Messages 6. check the if DC voltage between A(first wire) and B(third wire) is normal, it should be 13.5V ~16.5V The cause of alarm ‘TRANSITION-MAIN COMMUNICATE’ could be: 1. The connection between transition circuit board and main circuit board is wrong; 2.
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Control Alarm Messages The cause of alarm ‘CMP TOP OVER’ could be: 1. Water flow was not enough; 2. Refrigerant was not enough 3. Ambient temperature was too high; How to do: 1. Check if the water flow was not enough, so that the heat exchange efficiency was not good; 2.
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Control Alarm Messages The cause of alarm ‘WARM WATER TEMP.’ could be: 1. The connection of water tank temperature sensor was loose; 2. The water tank temperature sensor was broken; How to do: 1. Find the connection and make sure it is fine; 2.
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Control Alarm Messages The cause of alarm ‘CMP TEMP.’ could be: 1. The connection of compressor exhaust air temperature sensor was loose; 2. The compressor exhaust air temperature sensor was broken; How to do: 1. Find the connection and make sure it is fine; 2.
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Control Circuit Board Picture For DC AWA-SS- 12 and DC AWA-SS-15 Display Transition circuit board Module Main circuit board Power board...
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, water cycle pump and outdoor fan motor can be force manual startup. Water Pump : Control the Water Cycle Pump E-Heater : Control the Electrical Heater 1 and 2 O-Warm Water : Control the 3 way valve turn to the Water Tank Heating side ( B side ) I-Room Heating : Control the 3 way valve turn to the Room...
Dealing with malfunctions Draining, heat medium side Close the shut-off valves in heating medium system. And then close the water tank drain valve (72) . and open the drain valve ( 73 ). 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...
List of components Top board Compressor Right side board Oil tank Left side board Drying filter Glass upper door Waterspout Glass lower door Condenser Water flow switch Front board Expansion valve Board for fixing control panel Heating medium pump The back board Valve 1 Hole for copper pipe connection Valve 2...
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