INSTALLATION AND MAINTENANCE MANUAL AIR SOURCE HEAT PUMP WITH DC INVERTER (SPLIT TYPE) MODEL: AWB-SS-7 DC AWB-SS-9 DC AWB-SS-12 DC AWB-SS-15 DC - Please Read This Manual Before Using The Heat Pump -
1 Contents System description Principle of operation ............................................ 3 Unit Description .................................................... 3 Principle of heatpump ........................................... 4 Control panel Layout .................................................................. Explanation .......................................................... Functions ............................................................. Symbols ..............................
System description 2 Principle of operation BWB-SS DC series consists of a heat pump, water heater, electrical module, circulation pumps and a control system. BWB-SS DC series is connected to the collector and heating medium circuits. The heat from the heat source (rock, soil, lake) is taken up via a closed collector system in which a mixture of water and antifreeze circulates. Groundwater can also be used as a heat source, but this requires an intervening heat exchanger.
3 System description Unit Description In order to get the best results from the climate system AWB-SS series you should read through the section For the System manager in these Installation and Maintenance instructions. AWB-SS DC series is a climate system for heating houses and apartment buildings as well as industrial properties. Ground, rock or lakes can be used as the heat exchange source. AWB-SS DC series is a complete heating installation for heating and hot water.
System description 4 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. a. A hose filled with liquid (Brine system) is immersed into a lake, dug into the ground or sunk into the rock.
5 Control panel Layout Left button Up button Display Right button MONDAY 11:30 W. T.
Control panel 6 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. To be able to select the desired menu and increase or reduce preset values, you will use the five buttons. The right-hand button on the control panel is used to open the desired menu. The left-hand button is used to return to the previous menu.
7 General information for the installer Transport and storage Inspection of the installation The AWB-SS DC series must be transported and stored upright and dry. The AWB-SS DC series may however be carefully laid on its back when being moved into a building. Current regulations require the heating installation to be inspected before it is commissioned. The inspection must be carried out by a suitably qualified person and should be documented. The above applies to closed heating systems.
Pipe connections 8 General Pipe installation must be carried out in accordance with current norms and directives. The heat pump can operate up to a return temperature of about 58* °C and an outgoing temperature of about 70* °C from the heat pump. The compressor produces up to 65* °C, the rest is obtained using additional heating. The other heat pumps has a max return temperature of approximately 50 °C and an outgoing max temperature from the heat pump of approximately 60 °C.
9 Pipe connections Pipe connections (heating medium) 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 filter (supplied) are fitted. When connecting to a system with thermostats on all radiators, a relief valve must be fitted, or some of the thermostats must be removed to ensure sufficient flow.
Pipe connections 10 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. connecting pipe thick pipe thin pipe end nut Connector high pressure valve low pressure valve 3. Use Vacuum pump to remove the air from indoor unit and connection pipe.
11 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.
12 Pipe connections Pump capacity diagrams, heating medium side DC AWA-SS-7 Available pressure Available pressure kPa 80 70 60 50 40 30 20 10 0 DC AWA-SS-9 / DC AWA-SS-12 kPa WILO RS-25/6 1 2 3 Flow 0.22 0 0.44 Available pressure 0.66 0.88 1.10 1.32 1.54 1.76 l/s 1.96 2.24 l/s 80 70 60 50 40 30 20 10 0 WILO RS-25/8 1 2 3 Flow 0 0.22 0.44 0 .66 DC AWA-SS-15 kPa 80 70 60 50 40 30 20 10 0 WILO RL-25/7.5 2 Tillgängligt tryck 1 3 Flow 0 0.28 0.56 0.84 1.12 1.4 1.
13 Electrical connection Connection of the power cord Five core cable ( 2.5mm2 x 2.
Electrical connection 14 Connecting The Outside Temperature Sensor PG WTT RT OCT + + + + Outside air temperature sensor Outside air temperature sensor OCT=Outside air temperature sensor Connecting The Outside Temperature Sensor PG WTT RT OCT + + + + WTT WTT=Water tank temperature sensor Connecting The Defrost Temperature Sensor PG WTT RT OCT + + + + PG Outdoor unit PG=Defrost temperature sensor
WTT FEED EHI WF HDO From Water Tank Temperature Sensor From Water feed Temperature Sensor From Electrical auxiliary heater Temperature Sensor From Water Flow Switch From External relay signal control port From Electrical heater 1 From Electrical heater 2 From Electrical heater 3 From MAIN PCB / CN15 From MAIN PCB / CN15 PO PG PQ From Outside Air Temperature Sensor N EH3 N From Electrical heater GND From From Compressor GND From NOTE! 7KH FRQQHFWLQJ ZLUH RI RXWGRRU XQLW IDQ ZDWHU F\FOH S
Electrical connection 16 Indoor Unit Wiring Diagram of DC AWB-SS- 7 / 9 K1 EHI / WF NO BLACK BLUE BLACK BLACK BLACK CN 26 CN 25 NO CN 5 NO CN 4 4 BLACK BLUE 1 BLACK Compressor Circuit Board 3WV 3 Way Valve 4WV 4 Way Valve WCP Water Circulating Pump WCP2 Water Circulating Pump 2 OFAN Outdoor Unit Fan Motor EH 4 CT Common Terminal OFAN-H RE Relay for 3 Way Valve PQ PG EV CN16-N N CN 13 OFAN-L CN16-L CN23 EH 1 Electrical Heater 1 EH 2 Electrical Heater 2 EH 4 El
17 Electrical connection Outdoor Unit Wiring Diagram of DC AWB-SS- 7 / 9 DC AWB-SS-9 DC AWB-SS-7 OUTDOOR UNIT WIRING DIAGRAM OUTDOOR UNIT WIRING DIAGRAM WHITE WHITE CAPACITOR CAPACITOR RED WHITE RED ORANGE BLUE RED GND FAN MOTOR WHITE BLACK EH 4 CHASSIS HEATER BLACK BLUE WHITE DEFROST TEMPERATURE SENSOR GND FAN MOTOR WHITE BLACK OFAN-H EH 4 OFAN-H YELLOW OFAN-L OFAN-L WHITE DEFROST TEMPERATURE SENSOR N BLACK CHASSIS HEATER N PG PG Outdoor Unit Wiring Diagram of DC AWB-SS-
Commissioning and adjusting 18 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. Connect the filling pump and return line on the heating system's service connections as shown in figure. 3. Close the valve between the service connections. 4. Open the valves on the service connections(AV1,AV2). 5.
19 Commissioning and adjusting Inspection Adjust heat medium pump Readjusting, heat medium side Check the flow temperature and the return temperature on the control panel. The difference between these two temperatures, with floating condensing, should be 5 — 10 °C when the house is being heated without additional heat. Adjust the flow with the knob on the heating medium pump (16). A high difference could depend on a low heat medium flow. A low difference indicates a high heat medium flow.
Control 20 General information Menu Navigation The right-hand button on the control panel is used to open the desired menu. The left-hand button is used to return to the previous menu. The up and down buttons are used to navigate between the parameters of a menu. A cursor (arrow) on the left-hand side of the display indicates which menu can be opened. The up and down buttons are also used if you wish to increase or reduce a preset value.
21 Control Menus INTEGRAL Integral is a program to set the startup time and distance between compressor and electrical heater, to set stop conditions of compressor and electrical heater. This program is depends on the "feed water temperature degeneratiaon" and Time. COMPRESSOR A -60᧤0᧥ ADD1 500᧤-60᧥ TIMESETTING To set Time, year, month, date, and week; electrical heater timing, water tank heating timing, whole unit timing.
Control 22 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: a. Open the main menu INFORMATION by pressing the right-hand button once. You will find the cursor at the sub-menu named OPERATION. b. Open the OPERATION menu by pressing the right-hand button once. You will find the cursor at the previously selected operating mode. c.
23 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. TEMPERATURE WARMWT ROOM RETURN FEED.
Control 24 Menus Menu Text OFF CMP.A ADD1 ADD2 ADD3 * Description When the value (testing) reaches the value setting by user, the system will be closed. When the value (testing) reaches the value setting by user, the compressor will be start-up. And the value (testing) under the value (setting), the compressor will be closed. When the value (testing) reaches the value setting by user, the ADD 1 will be start-up. And the value (testing) under the value (setting), the ADD1 will be closed.
25 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 1ć. 10X1=10 , Degree Minute= -150; Another 1 minutes later when the Feed water temperature higher than desired temperature for 2ć. 10X1=10, Degree Minute= -140; Another 1 minutes later when the Feed water temperature higher than desired temperature for 3ć.
Control 26 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.
27 Control Menus 3.1.2.6 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.
Control 28 Menus ADD TIME OFF When you choose the symbol ‘¥’, the Auto stop function of Supplementary electrical heater is active. Select ‘͖’to cancel this function. If this function is active the heat pump will stop heating by Supplementary electrical heater at the time of your choosing. Sub-Menu DEFROST How to enter the Sub-Menu DEFROST: You need to choose the "DEFROST" on the main menu ( INFORMATION). Press the right button. Then " DEFROST" menu can be seen.
29 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 30 Menus Sub-Menu SETTING SETTING EMERGENCY 1 EMERGENCY 2 STERILAZE ADD START ADD DELAY ADD DIF TEMP OUTADD.
31 Control Menus ADD START : ( 10 to 65 degree adjustable , factory setting is 40 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 32 Menus Description Adjustable by HEATPUMP Total operating hours of heat pump since installation. Operating time will not be reset to zero. can not ADD Total operating hours of auxiliary heater 1 (3kW) since installation. Operating time will not be reset to zero. can not Total operating hours of auxiliary heater (6kW) since installation. Operating time will will not be reset to zero. can not Total operating hours of auxiliary heater (9kW) since installation.
33 Control Adjustments to be made regularly Sub-Menu LANGUAGE LANGUANG Language selection : How to enter the Sub-Menu of LANGUAGE: You need to choose the " LANGUAGE"on the Main menu ( INFORMATION ). Press the right button. Then "LANGUAGE"menu can be seen. Use Up and Down botton to select the language , and press Right button to confirm. ENGLISH FRENCH Most settings will be made by the installation contractor in connection with installation.
Control 34 Adjustments to be made regularly CURVE is program that adjusts feed water temperature according outdoor ambient temperature, factory setting is ambient temperature 0ć as feed water temperature 40ć, that is CURVE =40; the value of CURVE is adjustable from 22ć to 56ć.
35 Control Adjustments to be made regularly If you wish to change the ROOM value: 1 Press the ”up” or ”down” button once to open the ROOM value for adjustment. 2 Increase or reduce the preset value using the ”up” or ”down” button so that the desired room temperature is reached. Wait for 10 seconds or press the left-hand button once to return to the main menu. When enter ‘Room heat’ mode, user could control compressor and electrical heater through regulate heat curve or DM (degree minute).
Control 36 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. This function will allow you to increase or reduce the feed line temperature, without affecting the heat curve, at three specific outdoor temperatures.
37 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. If your house has floor heating and parquet floor, the supply line temperature should not be higher than 45°C. Else the floor might get damaged.
Control 38 Adjustments to be made regularly 5 Press the ”down” button to move the cursor to HIGH T STOP or LOW T STOP. 6 Open the selected parameter by pressing the right-hand button once. The cursor moves to HIGH T STOP or LOW T STOP. 7 Raise or lower the value, using respectively the ”up” or ”down” button. 8 Press the left-hand button three times to return to the main menu.
39 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 40 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). To find out where the pressure gauge is located. You can use ordinary tap water for filling the heating system.
41 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 42 Alarm Messages The cause of alarm ‘IPM MODULE’ could be: 1ǃThe communications between Module and outdoor main circuit board is jamming; 2ǃModule is jamming and can not detect current or compressor; 3ǃModule can not start compressor; 4ǃModule’s rated 15VDC voltage is not steady 5ǃModule’s current overload˗ How to do: 1. Please check if all terminals connections among circuit boards were good, whether some of the wire damaged; 2.
43 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 A B The cause of alarm ‘TRANSITION-MAIN COMMUNICATE’ could be: 1. The connection between transition circuit board and main circuit board is wrong; 2. The connection between transition circuit board and main circuit board is not good, such as had creepage; 3. The transition circuit board or main circuit board was damaged. How to do˖ 1.
Control 44 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. Check the refrigerant quantity, and make sure the system has not any leak. ; The cause of alarm ‘ADD OVER OR WATER FLOW TROUBLE ’ could be: 1. Water flow is not enough; 2.
45 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. As per resistance table of the sensor, please measure the sensor’s resistance, to judge the sensor was good or bad; replace a new one if the sensor get problem. The cause of alarm ‘FEEDLINE TEMP.’ could be: 1.
Control 46 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. As per resistance table of the sensor, please measure the sensor’s resistance, to judge the sensor was good or bad; replace a new one if the sensor get problem.
47 Control Circuit Board Picture For DC AWB-SS- 12 and DC AWB-SS-15 Display Transition circuit board Module Main circuit board Power board
Control 48 Sensors resistance table compressor exhaust temperature sensor resistance tć -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 R(Kȍ) 542.7 511.9 483 455.9 430.5 406.7 384.3 363.3 343.6 325.1 307.7 291.3 275.9 261.4 247.8 234.9 222.8 211.4 200.7 190.5 180.9 171.9 163.3 155.2 147.6 140.4 133.5 127.1 121 115.2 109.8 104.6 99.69 95.05 90.66 86.49 82.54 78.79 75.24 71.
49 Control Sensors resistance table 2 water/ambient/pipe sensor resistance T -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 R 115.266 108.146 101.517 96.3423 89.5865 84.219 79.311 74.536 70.1698 66.0898 62.2756 58.7079 56.3694 52.2438 49.3161 46.5725 44 41.5878 39.8239 37.1988 35.2024 33.3269 31.5635 29.9058 28.3459 26.8778 25.4954 24.1932 22.5662 21.8094 20.7184 19.6891 18.7177 17.8005 16.9341 16.1156 15.3418 14.6181 13.918 13.
Control 50 Terminology and Abbreviations Evaporate In 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. This value is determined by comparing the actual supply line temperature with its calculated (setpoint) value.
51 Description of the switch board Connect to common Terminal (CT) When test or repair the machine, the compressor, water cycle pump and outdoor fan motor can be force manual startup.
Dealing with malfunctions Draining, heat medium side Close the shut-off valves in heating medium system. open the drain valve ( 27 ). 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. When the heating medium is empty the requisite service can be carried out.
53 Component placement 1 2 3 4 6 5 7 10 9 11 12 13 8 + + + 15 Please Note : The picture for reference only ! + 14 16
Component placement 54 DC AWB-SS-15 for example 17 35 34 18 33 19 32 20 31 21 30 22 29 23 28 24 25 26 27 Please Note : The picture for reference only !
55 Component placement 3X400 V / 3 / 50 HZ + + + + 36 47 37 + + + + + + + + + + + + 46 + + 38 + + + + + + + + + + + + 45 + + 3 4 + 0057W + + + + 39 + 104 44 104 A + E28077 ROHS 104 A 104 + + + 40 + + + + + + + 43 + 42 52 48 53 + + + 49 54 + + + 41 50 104 A 104 55 51 Please Note : The picture for reference only !
List of components Please Note : The List for reference only ! 1 2 3 4 Plastic top board Control panel Left side board Right side board 31 32 33 34 Water Flow switch High pressure pressostat 1 High pressure pressostat 2 Condenser 5 6 7 8 9 10 11 12 Front board Handles Stainless steel adjustable feet Low Pressure valve High Pressure valve Low pressure needle valve High pressure needle valve Heating Flow( To Water Tank ) Ø 28 mm 35 36 Electrical Control Box Electric relay 37 38 39 40 Capacitor AC con
57 Dimensions Dimensions and setting-out coordinates 970mm 80mm m 600m 60mm 685 mm
Dimensions 58 730 710 Dimensions of the DC AWB-SS-7 outdoor unit 310 830 800 770 Dimensions of the DC AWB-SS-9 outdoor unit 360 880
59 Dimensions 1230 1200 Dimensions of the DC AWB-SS-12 outdoor unit 310 830 1250 1220 Dimensions of the DC AWB-SS-15 outdoor unit 390 930
Accessories 60 Enclosed kit 56 Outside air temperature sensor Room temperature sensor 57 58 60 59
61 Technical specifications Technical specifications 3 x 400 V IP 21 Refrigerant : R410A Model AWB-SS-7(DC) AWB-SS-9(DC) AWB-SS-12(DC) AWB-SS-15(DC) Heating Capacity at 7/35ć (KW) 7.000 9.013 11.880 14.650 Heating Power Input at 7/35ć (KW) 1.640 2.115 2.801 3.520 400V/3/50Hz 400V/3/50Hz 400V/3/50Hz Power supply (V/Ph/Hz) 400V/3/50Hz Compressor brand Hitachi Hitachi Hitachi Hitachi Compressor type Rotary Rotary Scroll Scroll Starting current, compressor (A) 1.5 1.5 2.5 2.
