AEROMAX PLUS AIR SOURCE HEAT PUMP PACKAGE HOMEOWNERS GUIDE

Transcription

1 AEROMAX PLUS AIR SOURCE HEAT PUMP PACKAGE HOMEOWNERS GUIDE

2 A WARM WELCOME CONGRATULATIONS! Your home is fitted with a unique renewable heating technology, allowing you to benefit from lower running costs and a more even temperature throughout your home. An air source heat pump collects and utilises thermal energy from the outside air to heat the home and provide domestic hot water. It does this in the same way that a fridge extracts heat from its inside. It can extract heat from the air even when the outside temperature is as low as -20 C. The heat generated can be used to warm water for radiators, underfloor heating systems or provide domestic hot water in your home. The process is simple, effective and entirely renewable and has been developed specifically for use in the UK and Irish domestic housing markets. In this guide we ll explain how Aeromax generates heat for your home and how to use your system in the most efficient way. Page 1

3 YOUR AEROMAX PLUS AIR SOURCE HEAT PUMP Your Aeromax Plus air source heat pump is designed to heat your home and to provide domestic hot water (DHW). Normally your installer will have ensured that your heat pump has sufficient heating output to provide these services without any supplementary heating being required. You ll find your Aeromax Plus unit close to a wall outside your property. It can also be mounted off the ground. SOLAR THERMAL PANELS CENTRAL HEATING RADIATORS DOMESTIC HOT WATER UNDERFLOOR HEATING DOMESTIC HOT WATER CYLINDER AEROMAX PLUS HEAT PUMP Page 2

4 HOW DOES IT WORK? 1. EVAPORATOR Aeromax Plus Air Source Heat Pumps provide thermodynamic heating by means of a vapour compression cycle. In the same way that a fridge uses refrigerant to extract heat from the inside to keep the food cool, air source heat pump extracts heat from the outside air, and uses it to heat the home through radiators, underfloor system or provide domestic hot water. It can extract heat from the air even when the outside temperature is as low as -20 C. 2 The evaporator collects heat from the outside air, which is then drawn into the unit by the fan through the evaporator fins and expelled through the front grille. The evaporator has liquid refrigerant passing through it, which is at a considerably lower temperature than the outside air, therefore the air gives up its heat to the refrigerant, which then vaporises. 2. EOMPRESSOR This preheated vapour now travels to OUTSIDE AIR 3 INTERNAL HEATING the compressor where it is compressed and upgraded to a much higher temperature. HEAT PUMP 3. CONDENSER (heat exchanger) 1 Every air source heat pump has four main parts: 1. Evaporator 2. Eompressor 3. Condenser (heat exchanger) 4. Expansion device 4 The hot vapour now enters the condenser where it is surrounded by water from the heating system. The heat is given up to the cooler water and the now cooler refrigerant returns to its former liquid state but still under high pressure from the compressor. 4. EXPANSION DEVICE Although Aeromax Plus is powered by electricity, when it is installed and designed correctly can often result in the system costing less to run than systems heated by oil, LPG, electricity or coal. Your heating costs will depend on how you use your heating or hot water and the temperature of your radiators. Aeromax Plus is cost-effective to use all year round, but you can ensure it is at its most efficient by running your radiators or underfloor heating at lower temperatures. This high pressure is then released by passing the liquid through the expansion device and from there it returns to the evaporator and the cycle starts again. Page 3

5 HOW DO I USE IT? The Aeromax Plus heat pump is designed to operate with a standard heating time switch and programmable room thermostat, providing space heating or DHW according to demand. The unit has two modes of operation: one for space heating through underfloor heating or radiators adjustable between 35 C and 55 C and a second for DHW preset at 60 C. We recommend that you review the electricity tariffs from all suppliers in your area and select one that will give you the optimum economy in relation to your lifestyle and heating demand HEATING AND DOMESTIC HOT WATER SYSTEM CONTROLS Your heating system is controlled by a programmable room thermostat that allows you to choose when to have your heating on and what temperature it should be when it is on. A time switch allows you to choose when you want to make hot water. The programmable room thermostat controls the temperature of the main living area while thermostatic radiator valves control the temperatures of the radiators in other rooms. The Aeromax Plus radiator system works at a lower surface temperature than traditional central heating. This means that your radiators will take a little longer to warm up your home but will give you a more even comfortable temperature. Normally your installer will have ensured that your radiators are correctly sized for operation with a heat pump. Your heat pump supplies Domestic Hot Water at between 50ºC - 55ºC. This is stored in the special hot water cylinder provided with your heat pump to ensure that you always have hot water on tap. Kingspan recommend that the hot water cylinder thermostat is set between 55/60 degrees C. The cylinder immersion heater should be set at 60ºC - 65ºC. Page 4

6 SYSTEM CONTROLS SETTING YOUR HEATING The programmable room thermostat lets you choose what times you want the heating to be on, and what temperature it should reach while it is on. This will allow you to select different temperatures in your home at different times of the day (and days of the week) to meet your particular needs. Weekdays (Mon-Fri) Event Time Temp. C 1 06: : : : : :30 18 Weekend (Sat-Sun) Event Time Temp. C 1 07: : : : : :30 18 SETTING YOUR HOT WATER The hot water and radiator systems cannot run at the same time so we recommend that you set your hot water to come on min. before you need it. The hot water timings given in the tables below allow for the immersion heater to beactivated after the hot water cycle in the morning. This will sanitise the tank temperature to between 60-65ºC. Typical winter settings for the programmable room thermostat and hot water time switch are illustrated below. Event No Hot water Mon - Fri Sat - Sun 1 1st ON 03:30 05:00 2 1st OFF 05:00 06:30 3 2nd ON 15:00 15:00 4 2nd OFF 15:50 15:50 Page 5

7 RADIATOR VALVES (TRV S) UNDERFLOOR HEATING & THERMOSTATIC RADIATOR VALVES (TRV S) Some of your radiators have thermostatic valves which allow you to vary the temperature in different areas of your home. You may, for example, prefer to keep your bedrooms cooler than your living room. Underfloor heating on the ground floor is normally controlled by room thermostats. This allows you to have different room temperatures if preferred. AUTOMATIC DEFROST When moist air comes into contact with the Aeromax Plus s evaporator, it will ice up in much the same way as ice builds up in your refrigerator. Defrosting the evaporator is a normal part of the Aeromax Plus operation in colder weather and normally takes place for about 4 minutes per hour. When defrosting, the fan will stop and water vapour may be seen rising from the heat exchanger. This is normal and is not a cause for concern. SAFETY PRECAUTIONS 1. Do not stand on the heat pump for any reason. 2. Do not allow children to poke sticks or other objects through the front grille into the fan as this 3. Outer panels should only be removed by a qualified service engineer. SERVICING We recommend that an annual service of the Aeromax Plus air source heat pump is carried out, should you require further details on service packages please contact us. You are advised to check occasionally that there is no debris around the heat pump which may get drawn into, or obstruct, the fans or the evaporator coils of the unit. Page 6

8 ADVANCED CONTROLLER ADVANCED CONTROLLER / COMFORT MODULE (HYDRO BOX) SCREEN INDICATOR Advanced Controller /Comfort Module (Hydro box) screen indicators In some cases your system may be fitted with an advanced controller or a comfort module with auxiliary heaters that also houses an advanced controller. Normally, the advanced controller or comfort module will have been configured by your installer and should require no user intervention. An exception to this may be if the system develops a fault. Details of the main screen icons on the advanced controller are given on the next page. Item 6 shows the Alarm icon. If this becomes active please refer to your advanced controller manual or comfort module manual to access the parameter table and identify the fault code System mode off Room air temperature Area Time Display Area Outdoor temperature Day of the week Alarm Indicator System is using home settings System is using away settings AM or PM indicator for current time System is using sleep settings Relative humidity Percentage Heat Mode Keypad is locked (no padlock means unlocked) Schedule Activated Celsius Auxiliary Heat Source Heat Pump Active Domestic Hot Water Page 7

9 FREQUENTLY ASKED QUESTIONS 1. MY HEAT PUMP IS RUNNING BUT THE RADIATORS ARE ONLY LUKE WARM. WHY? Heat pumps can only supply maximum temperatures of C to the heating system. This is much lower than the C supplied by a fossil fuel boiler. Therefore, the radiators will feel cooler. Also, the heat pump is usually programmed with a climatic curve that reduces the output temperature as the outside air becomes warmer. This reduces energy consumption but will also result in radiators only feeling luke warm if it is warm outside. 2. I HAVE UNDERFLOOR HEATING. WHY DOES IT TAKE SO LONG TO WARM UP? Underfloor heating is ideal for heat pumps as it works at lower temperatures than radiators and this improves the efficiency of the heat pump. However, it is important to understand the differences between underfloor heating and radiators. Underfloor heating is a radiant heating system. It works by heating up a large mass of concrete under the floor and this then radiates heat to the room above. Heating a large mass of concrete can take a long time but when it is warm it can supply heat for several hours and only needs topped up. Therefore, underfloor heating should not be turned off for long periods. 3. THE FANS ARE RUNNING ON MY HEAT PUMP BUT STEAM OR SMOKE SEEMS TO BE COMING OUT. WHY? When the heat pump is running it draws in air over the evaporator coils and removes energy from this air. This means that the exhaust air blown out by the fans is colder than the surrounding air. When this cold dry air comes into contact with relatively warmer moist air then depending on the air temperature condensation may be formed. This condensation will give the appearance of smoke or steam coming out from the fans. 4. THE FANS ARE NOT RUNNING BUT MY HEAT PUMP IS ON AND A LOT OF WATER AND STEAM IS COMING OUT. WHY? When the heat pump is defrosting it has to heat up the evaporator coils to melt the ice formed on them. To perform the defrosting quickly the evaporator coils are heated to a high temperature. This can result in some of the melt water being turned to steam. As the ice melts quickly it will appear that a lot of water is running out. Page 8

10 TROUBLE SHOOTING The diagnostic indicator for the air source heat pump will be located indoors in a visible place. The green lights shows that the power is on to the heat pump. The red alarm light will flash in the event of a problem. If this occurs count the number of flashes between pauses and use the fault code table to determine the fault. SYSTEM TEST The error code can be identified from the flashing LED on the Diagnostic Indicator using the following table. In the case of more than one error, the error with the highest priority will be displayed until it is resolved. In the case of an error the LED flashes a numbers times equal to the error code at a frequency of 1Hz and then remains off again for 6 seconds. If the error code has 2 digits, the flashing is interrupted for 2 seconds between the first and second digits. EXAMPLE: error 23: 2 flashes of 1 second each. Off for 2 seconds. 3 flashes of 1 second each. Off for 6 seconds. The cycle repeats until the LED turns off because the problem is resolved or if an error with higher priority occurs. FAULT CODE CODE DESCRIPTION 3 Enter Water Temperature Thermistor (EWT) Failure/Out of Range 4 Actual Refrigerant Temperature Thermistor BPHE (TR) Failure/Out of Range 5 Air Thermistor of GMC 6 Loss communication to NUI control 7 NUI control Room Thermistor 8 Unit Capacity Mismatch 9 Flow Switch error / Water Pump 10 EEProm Corrupt 11 Air temperature higher than Stop Heat 12 Air temperature lower than Stop Cool 13 Loss Communication to RS485 (system configuration type 6) 14 Loss of Signal From inverter board / High Temperature Release (Thermostat on compressor: 120 ± 4 C) 15 Exit water Temperature Thermistor (LWT) Failure/Out of Range 17 Inverter Air Thermistor (TO) Failure/Out of Range 18 G-Tr inverter short circuit protection 20 Compressor position Detection Circuit error 21 Inverter Current Sensor error 22 Heat Exchanger Sensors (TE) / (TS) Failure/Out of Range 23 Discharge Temperature Sensor (TD) (TD > 100 ± 4 C) 24 Outdoor Fan motor error 26 Other inverter board error 27 Compressor Lock 28 Discharge Temperature error Failure/Out of Range 29 Compressor Breakdown 30 Other inverter board error To reset the unit after an error has been cleared turn off the mains supply for 10 seconds and turn on again. Page 9

11 GUARANTEE During the period of guarantee we will, at our option, repair or replace your Aeromax Plus heat pump free of charge where it suffers a mechanical or electrical breakdown resulting from defective workmanship or materials, subject to the following conditions and exclusions: 1. The guarantee period commences from the date of commissioning. This must be recorded by the installer on the commissioning sheet. Without proof of purchase, i.e. an invoice or completed commissioning sheet, the guarantee period will be taken to commence from the date of manufacture, as detailed by the serial number on the appliance data plate. 2. The guarantee period for your heat pump is 2 years. 3. If the heating system fa ils, you should call the installer who will identify whether the problem lies with the heat pump or some other part of the system. They may be able to resolve the problem on the spot. If the problem is found to lie with the heat pump, they should telephone our Service Department on in the UK and Northern Ireland or for ROI. If the problem cannot be solved over the phone, they will arrange a visit by an authorised Aeromax Plus service agent to inspect and repair or, where in our sole opinion repair is not economic, arrange to replace the heat pump. 4. Your Aeromax Plus heat pump must not be removed from its place of installation at your property without our prior consent. 5. We reserve the right to charge a call-out fee: a. Where the problem is found not to lie with the heat pump. b. Failure to notify us of cancellation of an agreed appointment prior to our engineer s visit. c. The heat pump is outside the guarantee period. 6. The guarantee does not cover other costs or expenses caused or arising as a result of the failure of your heat pump. 7. The guarantee does not apply to any costs incurred during delays in fixing reported faults. 8. The guarantee applies to Aeromax Plus heat pumps installed in the UK and the Republic of Ireland. THE GUARANTEE DOES NOT APPLY IF: 1. The heat pump and associated equipment has been incorrectly sized for the application. 2. The heat pump and associated equipment has not been installed and commissioned in complete accordance with the procedures defined in the Aeromax Plus Installation Manual. 3. The heat pump and associated equipment has been worked upon or has been adjusted by anyone other than a person authorized to do so by Kingspan Environmental. 4. The heat pump and associated equipment has suffered frost, flood or malicious damage. IMPORTANT: Kingspan Environmental guarantee is subject to the homeowner registering with the Kingspan Environmental Customer Service Department within 30 days of commissioning / occupation if new build to confirm: Product Make / Model Details of installation Please complete the registration card provided with the unit and return to: Customer Service Department, Kingspan Environmental, Tadman Street, Wakefield, WF1 5QU, UK FOR PRODUCT REGISTRATION OR FURTHER INFORMATION WE CAN BE WE CAN BE CONTACTED IN THE FOLLOWING WAYS. . technicaluk@kingspan-renewables.com Tel (UK) Tel: (ROI) If you do not register the Product then Kingspan Environmental Guarantee is limited to twelve months from the date of commissioning. The product must be maintained by a competent person* within 12 months after commissioning, and thereafter at 12 monthly intervals. Kingspan Environmental reserves the right to seek evidence of this maintenance to our reasonable satisfaction before approving any guarantee servicing / repairs. PLEASE NOTE: this guarantee excludes all pipework and connections and excludes any ancillary equipment that may be connected to the product. (Ex: descaling equipment, water softeners). *A competent person is a business that has been adjudged by an accredited body (examples of which are NICEIC and BPEC) to be sufficiently competent to self-certify that its work complies with Document (G) Part 3 of the Building Regulations of England and Wales. * May Include SEI registered installers and/or FAS trained plumbers who have completed the renewables technology module. Page 10

12 Contact us now for further information Wakefield Office Tadman Street, Wakefield West Yorkshire WF1 5QU T F sales@kingspan-renewables.com Portadown Office 180 Gilford Road, Portadown Co. Armagh BT63 5LF T F contact@kingspanenviro.co.uk