INSTALLATION AND MAINTENANCE INSTRUCTIONS AIR SOURCE HEAT PUMP ( ALL IN ONE ) MODEL : AWA-SS-6 AWA-SS-8 ( 230V / 50HZ ) AWA-SS-10 AWA-SS-12 AWA-SS-16 ( 3x400V / 3 / 50Hz ) JULY 2009 Please read this operation 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 AWA-SS series consists of a heat pump, water heater, electrical module, circulation pumps and a control system. AWA-SS series is connected to the Outdoor Unit and heating medium circuits. The heat source of the AWA-SS series is provided from air. the Outdoor Unit of the system is a heat exchanger for collecting the heat of air. The air emits its heat to the refrigerant in the evaporate of Outdoorunit. It then vaporises and is compressed in the compressor.
3 System description Unit Description In order to get the best results from the climate system AWA-SS series you should read through the section For the System manager in these Installation and Maintenance instructions. AWA-SS series is a climate system for heating houses and apartment buildings as well as industrial properties. Air is used as the heat exchange source. AWA-SS 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. The Outdoor unit is used as the heat pump’s evaporator.
5 Control panel Layout o ROOM 20 C Display Up button OPER. AUTO Left button C DRight button Down F button Power On/Off A Explanation Control Panel The control panel of AWA-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. o ROOM 20 C OPER.
Control panel 6 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. To be able to select the desired menu and increase or reduce preset values, you will use the five buttons.
7 General information for the installer Transport and storage Inspection of the installation The AWA-SS series must be transported and stored upright and dry. The AWA-SS 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. Start the machine, operate heat pump on state. 2. Remove the cap of two valves with the spanner. Liquid valve Gas valve 3. Tighten the core of the liquid valve (the smaller one) with valve key at first .
12 Pipe connections Pump capacity diagrams, heating medium side AWA-SS-6 AWA-SS-8 AWA-SS-10 AWA-SS-12 Available pressure kPa 80 70 60 50 40 30 20 10 0 1 2 3 Flow 0 0.22 0.44 0.66 0.88 1.10 1.32 1.54 1.76 l/s 1.96 2.24 l/s WILO RS-25/8 AWA-SS-16 Available pressure kPa 80 70 60 50 40 30 20 10 0 2 Tillgängligt tryck 1 3 Flow 0 0.28 0.56 0.84 1.12 1.4 1.68 WILO RL-25/7.
13 Pipe connections How to adjust the rate of flow WILO RS-25/8 WILO RL-25/7.5 The pump is adjustable to adjust the flow: 1, 2, or 3. The pump is adjustable to adjust the flow: 1, 2, or 3.
Electrical connection 14 Connect the power cord N TS L R N N ( 230V / 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.
15 Electrical connection Wiring of the terminal (mode one) Step1 Step2 Step3 Wiring of the terminal (mode two) Step1 Step2 Step3
Electrical connection 16 Connecting The Room Temperature Sensor RT OCT Room temperature sensor Room temperature sensor RT=Room temperature sensor Connecting The Outside Temperature Sensor RT OCT Outside air temperature sensor Outside air temperature sensor OCT=Outside air temperature sensor Connecting The Defrost Temperature Sensor OUTP OCT OUTP Outdoor unit OUTP=Defrost temperature sensor
From PCB / CON4 /5,6 From PCB / CON4 /3,4 From PCB / CON4 /1,2 OCT RT WTT From Defrost Temperature Sensor From Outside Air Temperature Sensor From Room Temperature Sensor From Water Tank Temperature Sensor HP LP CSP 3WV The connecting wire of outdoor unit fan, water cycle pump two and electrical heater four should be connected to the 1.5mm2 terminal through the hole on the sound insulation board, and connect to outside with the copper pipes.
Electrical connection 18 Part of wiring diagram 2A F7 EH4 16A F5 Heater 2 16A F4 Heater 3 BLUE BLUE BLUE BLUE COMPRESSOR CONTACTOR N Heater 1 Y/G 16A F6 N 3A F3 C1 OFAN 3 way valve BROWN Relay of 3 way valve BLUE 4 way valve N Water cycle pump WCP2 WCP2 BLACK BLACK L3 C1 w WHITE T2 cm u RED T1 v L2 BLUE L1 3A F2 Y/G Y/G T3 2A F1 2.
19 Electrical connection Wiring Diagram( 230V / 50 HZ )
Electrical connection Wiring Diagram ( 3X400V / 3 / 50 HZ ) 20
21 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. 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.
Commissioning and adjusting 22 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.
23 Control General information Menu Navigation The right-hand button on the control panel is used to open the desired menu. The left-ha nd button is used to return to the pr evious 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 indica tes which menu can be opened . The up and down buttons are also used if you wish to increase or reduce a preset value.
Control 24 Menus Main Menu INFORMATION To open the main menu INFORMATION, press the right- or left-hand button once. Return Open next menu INFORMATION DEFROST OPERATION HEATCURVE TEMPERATURE INTEGRAL OPER TIME RESET MAN TEST . Sub menus 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. Sub-Menu OPERATION OPERATION AUTO ROOMHEAT WARMWATER HEATPUMP ADD HEAT .
25 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. If you wish to change operating mode: a. Open the main menu INFORMATION by pressing the right- hand button once. You will find the sub-menu named OPERATION. b.
Control 26 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 -20 20 41(70) 38(60) 53 ( 49 ) 32 OUT ROOM FEED RETURN WARMWT PIPE Table 2: Menu TEMPERATURE Menu Text Description Adjustable by: OUT Outside air temperature ROOM Desired (setpoint) room temperature User (see ”Adjustment of ROOM value” on page 33).
27 Control Menus Menu Text Description Adjustable by: OFF When the value (testing) reaches the value setting by user, the system will be closed. USER CMP.A 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. USER ADD1 When the value (testing) reaches the value setting by user, the ADD1 will be start-up.And the value(testing) under the value(setting),the ADD1 will be closed.
Control 28 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 teperature will begin increase. (Higher than desired temperature) when the actual water supply temperature reach / higher than the desired temperature, the DM will be changed. For example : the DM was cumulated to -160 in this time.
29 Control Menus Sub-Menu OPERATING TIME OPERATION TIME HEATPUMP ADD1 ADD2 ADD3 WARMWT 2 1 0 0 0 H H H H H Table 3: Menu OPERATING TIME Menu Text Description Adjustable HEATPUMP Total operating hours of heat pump since installation. Operating time will not be reset to zero. USER ADD 1 Total operating hours of auxiliary heater (3kW) since installation. Operating time will not be reset to zero. USER ADD 2 Total operating hours of auxiliary heater (6kW) since installation.
Control 30 Menus 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. You can choose " Intell Defrost" or " Manual Defrost" INTELL.DEF: Auto defrost mode;defrost time and defrost interval will be set by system automatically. MANUAL DEF: Manual defrost mode; defrost time and defrost interval can be set by yourself. DEF TIME: The range of the setting defrost time: ( 2 ~ 20 min ).
31 Control Adjustments to be made regularly Supply line temperature 40 C CURVE Heat curve 18 64 56 Relation of outside air temperature to supply line temperature 48 40 32 24 5 18 -5 0 C 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. At outside air tempe- ratures lower than 0°C, the water sent to the radiators will be warmer than 40°C.
Control 32 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. 1.
33 Control Adjustments to be made regularly Adjustment 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. Instead, the whole curve is moved by 3°C for every degree by which the ROOM value is changed. The relation supply line temperature to outside air temperature will not be affected.
Control 34 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.
35 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 36 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 45 C 0 64 56 48 40 32 24 18 5 0 -5 C There is a graph available for all temperatures, except for the ROOM temperature,where you can only view the setpoint value.
37 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 38 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. 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). For more information, please refer to the chapter ALARM MESSAGES on p. 40.
39 Control Regular Checks Checking the Safety Valves Both safety valves of the heating system should be checked at least four times a year to prevent lime deposits to clog the mechanism. To find out where the safety valves are located. The safety valve of the water heater protects the closed heater against positive pressure. It is fitted on the cold water inlet line, its outlet opening facing down- wards. If the safety valve is not checked regularly, the water heater might be damaged.
Control 40 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. Table : Alarm Messages Message Signification Cause Action RETURN TEMP Return line temperature sensor error; All operation stopped, except circulation pump of heating system. Sensor disconnected; Sensor defective. Check the connections,the wire, or change it .
41 Control 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.
Description of the switch board 42 A0 1 : Control the compressor; AA M : Control the water cycle pump; BA M Connect to Fuse 3 AA M Switch board When test or repair the machine, the compressor, water cycle pump and outdoor fan motor can be force manual startup. Connect to Fuse 2 Function of manual switch board: A0 1 Connect to compressor contactor (A1) Function BA M : Control the fan motor of outdoor unit.
43 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 , 74). 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.
Component placement 44 1 11 4 14 5 2 9 7 12 13 3 6 8 9 10 Please Note : The picture for reference only !
45 Component placement 16 RT 24 22 21 25 20 26 23 15 18 17 63 19 65 67 62 55 61 56 57 69 60 58 64 66 32 50 51 68 53 27 52 28 OUTP 34 31 30 OCT 35 29 36 45 41 48 38 47 39 46 40 49 37 54 42 44 33 43 Please Note : The picture for reference only ! 59
Component placement 46 230 V /50 HZ 71 70 3X400 V / 3 / 50 HZ 71 70 Please Note : The picture for reference only !
47 List of components 1 2 3 4 5 6 7 8 9 10 11 Top board Right side board Left side board Glass upper door Glass lower door Front board Board for fixing control panel The back board Hole for copper pipe connection Stainless steel adjustable feet Control panel 12 13 14 15 16 17 18 19 20 Control panel Box Connecting wire of control panel Door lock Connection,heating return Ø 28 mm Expansion vessel,connection /1 inch Connection,heating flow Ø 28 mm Cold water inlet Hot water outlet Power cord connection ho
Dimensions 48 Dimensions and setting-out coordinates 54 30-50 1800 50 600 540 440 482 60 480 384 208 270 670 720 455 78 90 62 544
49 Dimensions 610 59 0 Dimensions of the AWA-SS-6 outdoor unit 285 840 720 69 0 Dimensions of the AWA-SS-8 outdoor unit 310 830 800 770 Dimensions of the AWA-SS-10 outdoor unit 360 880
Dimensions 50 1230 1200 Dimensions of the AWA-SS-12 outdoor unit 310 830 1250 1220 Dimensions of the AWA-SS-16 outdoor unit 390 930
51 Accessories 82 Enclosed kit 77 Outside air temperature sensor Room temperature sensor 78 80 79 81 FIGHTER 1220
52 Technical specifications Technical specifications 230V / 3 x 400 V IP 21 Refrigerant : R410A Type ( AWA-SS SERIES ) 6 8 10 12 16 Heating Capacity at 7/35 °C ( KW ) 5.95 8.10 10.4 12.5 16.1 Heating Power Input at 7/35 °C ( KW ) 1.475 1.975 2.48 3.06 3.98 Operational voltage (V) 230 V / 50 Hz 3 x 400 V / 3 / 50 Hz Starting current, compressor (A) 24 24 30 30 35 Heating current, compressor (A) 6.8 10.1 4.0 6.4 7.2 Operating curr. incl.
