INTRODUCTION This manual This manual includes the necessary information about the unit. Please read this manual carefully before you use and maintain the unit. General information The all in one monobloc system consists out of only the outdoor unit in which all hydraulic parts are located. In this system no refrigerant lines need to be connected which makes the installation easier for the domestic installer. These units are used for both heating and cooling applications. The unit can be combined with fan coil units, floor heating, low temperature radiators, and the domestic hot water tanks. The unit range consists out of two main versions: a heating/cooling version and a heating only version. Both versions can optionally be delivered with an integrated backup heater for additional heating capacity during cold outdoor temperatures. The backup heater also serves as a backup in case of malfunctioning of the outdoor unit. The backup heaters are available in different capacities. Domestic hot water tank option An optional domestic hot water tank with integrated electrical booster heater can be connected to the indoor unit. The domestic hot water tank is available in different sizes. Model identification D AO – 16 H A / 3 Power supply ...
Items inside product box Thank you for choosing the All in One air to water heat pump‐ Monobloc system. Before starting installation, please make sure that all parts are found inside the product box. The Unit Box Item Image Quantity AXAO‐06HA and 1 AXAO‐08HA AXAO‐11HA 1 AXAO‐14HA and 1 AXAO‐16HA/3 Installation and Service 1 Manual Operation Manual 1 Luxury Air Source Heat Pump‐Monobloc System ...
Cycle diagram As the all in one monobloc unit is an air to water heat pump, there are two different fluids cycling inside the system, one is refrigerant and the other is water. The whole cycle diagram is shown below. Model: AXAO‐06HA and AXAO‐08HA Luxury Air Source Heat Pump‐Monobloc System ...
SAFETY PRECAUTIONS To prevent injury to the user, other people, or property damage, the following instructions must be followed. Incorrect operation due to ignoring of instructions may cause harm or damage. Install the unit only when it complies with local regulations, by‐laws and standards. Check the main voltage and frequency. This unit is only suitable for earthed sockets. The following safety precautions should always be taken into account: Be sure to read the following WARNING before installing the unit. Be sure to observe the cautions specified here as they include important items related to safety. After reading these instructions, be sure to keep it together with the manual in a handy place for future reference. Do not install the unit yourself. Incorrect installation could cause injury due to fire, electric shock, the unit falling or leakage of water. Consult the dealer from whom you purchased the unit or a specialized installer. Install the unit securely in a place. When insufficiently installed, the unit could fall causing injury. The minimum support weight of 20g/mm² of the installation place is required. When installing the unit in a small room, please take measures (like sufficient ventilation) to prevent the asphyxia caused by the leakage of refrigerant. Use the specified electrical wires and attach the wires firmly to the terminal board (connection in such a way that the stress of the wires is not applied to the sections). Incorrect connection and fixing could cause a fire. Be sure to use the provided or specified parts for the installation work. The use of defective parts could cause an injury due to possible fire, electric shocks, the unit falling etc. Perform the installation securely and please refer to the installation instructions. Incorrect installation could cause an injury due to possible fire, electric shocks, the unit falling, leakage of water etc. Perform electrical work according to the installation manual and be sure to use a dedicated section, fused with 16A. If the capacity of the power circuit is insufficient or there is an incomplete electrical circuit, it could result in a fire or an electric shock. ...
Never use an extension cable to connect the unit to the electric power supply. If there is no suitable, earthed wall socket available, have one installed by a recognized electrician. Do not move/repair the unit yourself. Improper movement or repair on the unit could lead to water leakage, electrical shock, injury or fire. Have any repairs and/or maintenance only carried out by a recognized service engineer. Do not plug or unplug the power supply during operation There is a risk of fire or an electric shock Do not touch/operate the unit with wet hands There is a risk of fire or an electric shock Do not place a heater or other appliances near the power cable There is a risk of fire or an electric shock Be cautious that water could not be poured to the product directly, do not allow water to run into electric parts There is a risk of fire or an electric shock IF THE PRODUCT IS NOT USED FOR A LONG TIME, WE STRONGLY RECOMMEND NOT TO SWITCH ‘OFF’ THE POWER SUPPLY OF THE UNIT. IF THE POWER IS NOT SUPPLIED, SOME SPECIAL PRODUCT‐PROTECTING ACTIONS (SUCH AS WATER PUMP ANTI‐LOCKING) WILL NOT BE PERFORMED. Do not install the unit in a place where there is a chance of flammable gas leaks. If there is a gas leak and gas accumulates in the area surrounding the unit, it could cause an explosion. Perform the drainage/piping work according to the installation instruction. If there is a defect in the drainage/piping work, water could leak from the unit and household goods could get wet and be damaged. Do not clean the unit when the power is ‘on’. Always shut ‘off’ the power when cleaning or servicing the unit. If not, it could cause an injury due to the high speed running fan or an electrical shock. ...
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Do not continue to run the unit when there is something wrong or there is a strange smell. The power supply needs to be shut ‘off’ to stop the unit; otherwise this may cause an electrical shock or fire. Be cautious when unpacking and installing the product. Sharp edges could cause injury. Especially watch the edges and the fins on the heat exchanger of the product. Always check for gas (refrigerant) leakage after installation or repair of product. Low refrigerant levels may cause failure of the product. Keep level even when installing the product. This to avoid vibration or water leakage. Do not put your fingers or others into the fan, or evaporator. The ventilator runs at high speed, this could cause serious injury. Luxury Air Source Heat Pump‐Monobloc System ...
Internal view: AXAO‐06HA and AXAO‐08HA No. Description Description 1 Left front plate 17 Switch box 2 Air outlet grill 18 Water pump (RS15/6) 3 Fan motor 19 Four‐way valve assembly 4 Fan 20 Water flow switch 5 Plate heat exchanger 21 Three‐way valve 6 Fan motor holder 22 H/C OUT 7 Condenser 23 DHW OUT 8 Expansion vessel (10L) 24 Electronic expansion valve 9 ...
Internal view: AXAO‐11HA No. Description Description 1 Left front plate 19 Manometer (refrigerant pressure) 2 Air outlet grill 1 20 Manometer (water pressure) 3 Fan motor 1 21 Water pump (RS25/8) 4 Fan 1 22 Four‐way valve assembly 5 Air outlet grill 2 23 Water flow switch 6 Fan motor 2 24 Three‐way valve 7 Fan 2 25 H/C OUT 8 Fan motor holder 26 DHW OUT 9 Switch box ...
Internal view: AXAO‐14HA and AXAO‐16HA/3 No. Description Description 1 Left front plate 19 Backup heater vessel (20L) 2 Air outlet grill 1 20 Switch box 3 Fan motor 1 21 Water pump (RS25/8) 4 Fan 1 22 Four‐way valve assembly 5 Air outlet grill 2 23 Water flow switch 6 Fan motor 2 24 Three‐way valve 7 Fan 2 25 H/C OUT 8 Fan motor holder 26 DHW OUT 9 Plate heat exchanger ...
CONTROL PARTS Control Panel No. Description Description 1 OPERATION LED 10 TEMPERATURE ADJUST BUTTON 2 COOLING/HEATING ON/OFF BUTTON 11 DOMESTIC HOT WATER TEMPERATURE ADJUST BUTTON 3 TIMER/ PROGRAMMING BUTTON 12 DOMESTIC HOT WATER TEMPERATURE ADJUST BUTTON 4 HOUR ADJUST BUTTON 13 SPACE HEATING/COOLING BUTTON 5 DAY OF THE WEEK ADJUST BUTTON 14 DOMESTIC WATER HEATING BUTTON 6 MINUTE ADJUST BUTTON 15 CLOCK SETTING BUTTON 7 TIME/TIMER ON ADJUST BUTTON 16 ...
How to connect the “Water Tank Electrical heating Driving Signal (C1 and C2)” to the tank heater? Please refer to below drawing. One extra contactor is needed. INSTALLATION OF THE UNIT Installation guidelines Precautions for selecting the location MAKE SURE TO PROVIDE FOR ADEQUATE MEASURES IN ORDER TO PREVENT THAT THE OUTDOOR UNIT WILL BE USED AS A SHELTER FOR SMALL ANIMALS. SMALL ANIMALS MAKING CONTACT WITH ELECTRICAL PARTS CAN CAUSE MALFUNCTIONS, SMOKE OR FIRE. PLEASE KEEP THE AREA AROUND THE UNIT CLEAN. 1. Choose a place solid enough to bear the weight and vibration of the unit, where the operation noise will not be amplified. 2. Choose a location where the hot air discharged from the unit or the operation noise will not cause a nuisance to the neighbors of the user. 3. Avoid places near a bedroom and the like, so that the operation noise will cause no trouble. 4. There must be sufficient space for carrying the unit into and out of the site. 5. There must be sufficient space for air passage and no obstructions around the air inlet and the air outlet. 6. Locate the unit so that the noise and the discharged hot air will not annoy the neighbors. 7. The site must be free from the possibility of flammable gas leakage in a nearby place. 8. Install units, power cords and inter‐unit cables at least 3m away from television and radio sets. This is to prevent interference to images and sounds. 9. Depending on radio wave conditions, electromagnetic interference can still occur even if installed more that 3m away. 10. In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the outdoor unit. 11. Since drain flows out of the outdoor unit, do not place anything under the unit which must be kept away from moisture. ...
Selecting a location in cold climates WHEN OPERATING THE OUTDOOR UNIT IN A LOW OUTDOOR AMBIENT TEMPERATURE, BE SURE TO FOLLOW THE INSTRUCTIONS DESCRIBED BELOW. • To prevent exposure to wind, install the outdoor unit with its suction side facing the wall. • Never install the outdoor unit at a site where the suction side may be exposed directly to wind. • To prevent exposure to wind, install a baffle plate on the air discharge side of the outdoor unit. • In heavy snowfall areas it is very important to select an installation site where the snow will not affect the unit. If lateral snowfall is possible, make sure that the heat exchanger coil is not affected by the snow (if necessary construct a lateral canopy). Installation space Luxury Air Source Heat Pump‐Monobloc System ...
Mounting the unit When installing the outdoor unit, please refer to “Installation guidelines” to select an appropriate location. 1. Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installation. 2. Prepare 4 sets of M8 foundation bolts, nuts and washers each (filed supply). 3. Fix the unit securely by means of the foundation bolts in accordance with the foundation drawing. It is best to screw in the foundation bolts until their length remains 20mm above the foundation surface. Water pipe‐work Checking the water circuit The 3‐way valve is built‐in the unit. So the unit is equipped with the water inlet/outlet for hot water connection, and the water inlet/outlet for space heating/cooling. The water circuits must be provided by a licensed technician and must comply with all relevant European and national regulations. THE UNIT IS ONLY TO BE USED IN A CLOSED WATER SYSTEM. APPLICATION IN AN OPEN WATER CIRCUIT CAN LEAD TO EXCESSIVE CORROSION OF THE WATER PIPING. Before continuing the installation of the unit, check the following points: • The maximum water pressure is 6 bar. • Four shut‐off valves are not delivered with the unit. To facilitate service and maintenance, please install one at each water inlet/outlet. Mind position of the shut‐off valves. Orientation of the integrated drain and fill valves is important for servicing. • Drain taps must be provided at all low points of the system to permit complete drainage of the circuit during maintenance. • Make sure to provide a proper drain for the pressure relief valve to avoid any water coming into ...
Checking the water volume and expansion vessel pre‐pressure The unit is equipped with an expansion vessel of 10 liters which has a default pre‐pressure of 1 bar. To assure proper operation of the unit, the pre‐pressure of the expansion vessel might need to be adjusted and the minimum and maximum water volume must be checked. 1. Check that the total water volume in the installation is 32 L minimum. IN MOST AIR CONDITIONING APPLICATIONS THIS MINIMUM WATER VOLUME WILL HAVE A SATISFYING RESULT. IN CRITICAL PROCESSES OR IN ROOMS WITH A HIGH HEAT LOAD THOUGH, ...
Setting the pre‐pressure of the expansion vessel When it is required to change the default pre‐pressure of the expansion vessel (1 bar), keep in mind the following guidelines: ‐ Use only dry nitrogen to set the expansion vessel pre‐pressure. ‐ Inappropriate setting of the expansion vessel pre‐pressure will lead to possible malfunctioning of the system. Therefore, the pre‐pressure should only be adjusted by a licensed installer. Connecting the water circuit Water connections must be made in accordance with the outlook diagram delivered with the unit, respecting the water in‐ and outlet BE CAREFUL NOT TO DEFORM THE UNIT PIPING BY USING EXCESSIVE FORCE WHEN CONNECTING THE PIPING. DEFORMATION OF THE PIPING CAN CAUSE THE UNIT TO MALFUNCTION. If air, moisture or dust gets in the water circuit, problems may occur. Therefore, always take into account the following when connecting the water circuit: • Use clean pipes only. • Hold the pipe end downwards when removing burrs. • Cover the pipe end when inserting it through a wall so that no dust and dirt can enter. • Use a good thread sealant for the sealing of the connections. • The sealing must be able to withstand the pressures and temperatures of the system. • When using non‐brass metallic piping, make sure to insulate both materials from each other to prevent galvanic corrosion. • Because brass is a soft material, use appropriate tooling for connecting the water circuit. Inappropriate tooling will cause damage to the pipes. ...
THE UNIT IS ONLY TO BE USED IN A CLOSED WATER SYSTEM. APPLICATION IN AN OPEN WATER CIRCUIT CAN LEAD TO EXCESSIVE CORROSION OF THE WATER PIPING. NEVER USE ZN‐COATED PARTS IN THE WATER CIRCUIT. EXCESSIVE CORROSION OF THESE PARTS MAY OCCUR AS COPPER PIPING IS USED IN THE INTERNAL WATER CIRCUIT OF THE UNIT. WHEN USING A 3‐WAY VALVE OR A 2‐WAY VALVE IN THE WATER CIRCUIT. THE RECOMMENDED MAXIMUM CHANGEOVER TIME OF THE VALVE SHOULD BE LESS THAN 60 SECONDS. Charging water 1. Connect the water supply to a drain and fill valve. 2. Make sure the automatic air purge valve is open (at least 2 turns). 3. Fill with water until the water manometer indicates a pressure of approximately 2.0 bar. Remove air in the circuit as much as possible using the air‐purge valves. Air present in the water circuit might cause malfunctioning of the optional backup heater. 4. For units with an optional backup heater: Check that the backup heater vessel is filled with water by opening the pressure relief valve. Water must flow out of the valve. NOTE • During filling, it might not be possible to remove all the air in the system. Remaining air will be removed through the automatic air purge valves during first operating hours of the system. Additional filling with water afterwards might be required. ...
Field wiring WARNING • A main switch or other means for disconnection, having a contact separation in all poles, must be incorporated in the fixed wiring in accordance with relevant local and national legislation. • Switch off the power supply before making any connections. • All field wiring and components must be installed by a licensed electrician and must comply with relevant European and national regulations. • The field wiring must be carried out in accordance with the wiring diagram supplied with the unit and the instructions given below. • Be sure to use a dedicated power supply. Never use a power supply shared by another appliance. • Be sure to establish an earth. Do not earth the unit to a utility pipe, surge absorber, or telephone earth. Incomplete earth may cause electrical shock. • Be sure to install an earth leakage protector. Failure to do so may cause electrical shock. Wiring overview The table below gives and wiring overview of required field wiring. AXAO‐06 (08) (11) HA AXAO‐14HA AXAO‐16HA/3 2 Power supply AWG8 (8.5mm ) *3 10mm *3 AWG8 (8.5mm ) *4 ...
SYSTEM SET‐UP As the unit is designed to satisfy various installation environments, it is important to set up system correctly. If not configured correctly, improper operation or degrade of performance can be expected. DIP switch setting overview CAUTION TURN OFF ELECTRIC POWER SUPPLY BEFORE SETTING DIP SWITCH. WHENEVER ADJUSTING DIP SWITCH, TURN OFF ELECTRIC POWER SUPPLY TO AVOID ELECTRIC SHOCK. DIP switch introduction The DIP switches are located on the indoor and outdoor switch box PCBs. They allow configuration of model selection, system priority, fast check and power supply. Indoor PCB DIP Switch Introductions: SW1‐2: 8kW 11kW 14kW 16kW SW3‐4: Code ...
Pre‐operation checks Checks before initial start‐up SWITCH OFF THE POWER SUPPLY BEFORE MAKING ANY CONNECTIONS. After the installation of the unit, check the following before switching on the circuit breaker: 1. Field wiring Make sure that the field wiring between the local supply panel and domestic hot water tank has been carried out according to the instructions, according to the wiring diagrams and according to European and national regulations. 2. Fuses or protection devices Check that the fuses or the locally installed protection devices are of the size and type specified. Make sure that neither a fuse nor a protection device has been bypassed. 3. Earth wiring Make sure that the earth wires have been connected properly and that the earth terminals are tightened. 4. Internal wiring Visually check the switch box on loose connections or damaged electrical components. 5. Fixation Check that the unit is properly fixed, to avoid abnormal noises and vibrations when starting up the unit. 6. Damaged equipment Check the inside of the unit on damaged components or squeezed pipes. 7. Refrigerant leakage Check the inside of the unit on refrigerant leakage. If there is a refrigerant leak, call your local dealer. 8. Power supply voltage Check the power supply voltage on the local supply panel. The voltage must correspond to the voltage on the identification label of the unit. 9. Air purge valve Make sure the air purge valve is open (at least 2 turns). ...
Setting the pump speed The pump speed can be selected on the pump. The default setting is high speed (III). If the water flow in the system is too high (e.g., noise of running water in the installation) the speed can be lowered (I or II). The available external static pressure (ESP, expressed in mH2O) in function of the water flow (l/min) is shown in the graph below. Model RS15/6 and RS25/8 Luxury Air Source Heat Pump‐Monobloc System ...
MAINTENANCE In order to ensure optimal availability of the unit, a number of checks and inspections on the unit and the field wiring have to be carried out at regular intervals. BEFORE CARRYING OUT ANY MAINTENANCE OR REPAIR ACTIVITY, ALWAYS SWITCH OFF THE CIRCUIT BREAKER ON THE SUPPLY PANEL, REMOVE THE FUSES OR OPEN THE PROTECTION DEVICES OF THE UNIT. MAKE SURE THAT BEFORE STARTING ANY MAINTENANCE OR REPAIR ACTIVITIES THE POWER SUPPLY TO THE OUTDOOR UNIT IS SWITCHED OFF. The described checks must be executed at least once a year. 1. Water pressure Check if the water pressure is above 0.3 bar. If necessary add water. 2. Water filter Clean the water filter. 3. Water pressure relief valve Check for correct operation of the pressure relief valve by turning the red knob on the valve counter‐clockwise: • If you do not hear a clacking sound, contact your local dealer. • In case the water keeps running out of the unit, close both the water inlet and outlet shut‐off valves first and then contact your local dealer. 4. Pressure relief valve hose Check that the pressure relief valve hose is positioned appropriately to drain the water. 5. Backup heater vessel insulation cover Check that the backup heater insulation cover is fastened tightly around the backup heater vessel. 6. Domestic hot water tank pressure relief valve (field supply) Applies only to installations with a domestic hot water tank. Check for a correct operation of the pressure relief valve on the domestic hot water tank. ...
TROUBLESHOOTING This section provides useful information for diagnosing and correcting certain troubles which may occur in the unit. General guidelines Before starting the troubleshooting procedure, carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring. Before contacting your local dealer, read this chapter carefully, it will save you time and money. WHEN CARRYING OUT AN INSPECTION ON THE SWITCH BOX OF THE UNIT, ALWAYS MAKE SURE THAT THE MAIN SWITCH OF THE UNIT IS SWITCHED ‘OFF’. When a safety device was activated, stop the unit and find out why the safety device was activated before resetting it. Under no circumstances safety devices may be bridged or changed to a value other than the factory setting. If the cause of the problem cannot be found, call your local dealer/installer. If the pressure relief valve is not working correctly and needs to be replaced, always reconnect the flexible hose attached to the pressure relief valve, to avoid water dripping out of the unit! General symptoms Symptom 1: The unit is turned on but the unit is not heating or cooling as expected Possible causes Corrective action The temperature setting is not correct. Check the controller set point. The water flow is too low. • Check that all shut off valves of the water circuit are completely open. • Check if the water filter needs cleaning. • Make sure there is no air in the system (purge air). • Check on the manometer that there is sufficient water pressure. The water pressure must be >0.3 bar (water is cold), >>0.3 bar (water is hot). ...
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Symptom 2: The unit is turned ‘on’ but the compressor is not starting (space heating or domestic water heating) Possible causes Corrective action The unit must start up out of its In case of a low water temperature, the system utilizes the operation range (the water backup heater to reach the minimum water temperature first. temperature is too low). • Check that the backup heater power supply is correct • Check that the backup heater thermal fuse is closed. • Check that the backup heater thermal protector is not activated. • Check that the backup heater contactors are not broken. Symptom 3: Pump is making noise (cavitation) Possible causes Corrective action There is air in the system. Purge air. Water pressure at pump inlet is too • Check on the manometer that there is sufficient water low. pressure. The water pressure must be >0.3 bar (water is cold), >>0.3 bar (water is hot). • Check that the manometer is not broken. • Check that the expansion vessel is not broken. • Check that the setting of the pre‐pressure of the expansion vessel is correct (refer to: "Setting the pre‐pressure of the expansion vessel"). Symptom 4: The water pressure relief valve opens Possible causes Corrective action The expansion vessel is broken. Replace the expansion vessel. The water volume in the installation is Make sure that the water volume in the installation is under too high. ...
Symptom 6: Space heating capacity shortage at low outdoor temperatures Possible causes Corrective action Backup heater operation is not Check the backup heater is turned ‘on’. activated. Check whether or not the thermal protector of the backup heater has been activated. Check whether or not the thermal fuse of the backup heater is blown. Too much heat pump capacity is used Check that the 'space heating priority temperature' field for heating domestic hot water (applies settings are configured appropriately: only to installations with a domestic hot • Make sure that the space heating priority is enabled water tank). Error codes When a safety device is activated, the user interface LED will be flashing, and an error code will be displayed. A list of all errors can be found in the table below. Code Failure cause E0 HE outlet sensor failure E1 Water tank temp sensor failure E2 HE inlet sensor failure E3 Water outlet sensor failure E4 Outdoor heat exchanger sensor failure E5 Outdoor ambient temp sensor failure E6 TH temp sensor failure ...
TECHNICAL SPECIFICATION TECHNICAL DATA AXAO‐06HA AXAO‐08HA AXAO‐11HA AXAO‐14HA AXAO‐16HA/3 Nominal capacity kW Refer to the nameplate Power input kW Refer to the nameplate Heating COP W/W Refer to the nameplate Nominal capacity kW Refer to the nameplate Power input kW Refer to the nameplate Cooling EER W/W Refer to the nameplate Nominal capacity kW Refer to the nameplate Power input kW Refer to the nameplate DHW COP W/W Refer to the nameplate Max. power input kW 8.6 9.1 10 11.4 11.88 ...
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- Cooling: Water Inlet/Outlet temperature 23°C /18°C. Outdoor air dry bulb temperature 35°C - Domestic Hot Water: Water temperature in the tank 40°C. Outdoor air dry bulb/wet bulb temperature 7°C /6°C Semtic Heating 0431-22290 in Scandinavian www.ttshop.se SEMTIC Heating Luxury Air Source Heat Pump-Monobloc System...