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Installation Guide for Danfoss models including: 353704 Air Units and Air Flex Duct Systems, 353704, Air Units and Air Flex Duct Systems, Air Flex Duct Systems, Flex Duct Systems, Duct Systems
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DocumentDocumentMAKING MODERN LIVING POSSIBLE Installation Guide Danfoss Air Units and Air Flex Duct Systems www.heating.danfoss.com Danfoss A/S is not liable or bound by warranty if these instructions are not adhered to during installation or service. The English language is used for the original instructions. Other languages are a translation of the original instructions. (Directive 2006/42/EC) © 2012 Copyright Danfoss A/S Installation Guide Danfoss Air Units and Air Flex Duct Systems Table of Contents 1 Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Installation of Air Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Installation of CCM Module and Air Dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.2 Wireless connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.3 Air Dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.4 Mounting and removing CCM module and Air Dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Balancing of the main air volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Service Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Dimensioning the Air Flex Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7 Installing Air Flex Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7.1 Positioning the manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7.2 Mounting the manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7.3 Mounting the inspection hatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 8 Installing Air Flex Supply Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 8.1 Placing the supply air box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 8.2 Mounting the supply air box in the floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 8.3 Casting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 9 Installing Wall and Ceiling Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 9.1 Positioning wall and ceiling valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 9.2 Mounting wall and ceiling valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 10 Installing Air Flex Pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 10.1 Mounting Air Flex pipes in the floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 10.2 Mounting Air Flex pipes in walls and ceilings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 10.3 Coupling of two Air Flex pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 11 Insulation and Sound Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 12 Installing Roof Terminals and Wall Grills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 13 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 13.1 a² Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 13.2 a³ Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 13.3 w¹ Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 13.4 w² Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 14 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 1 Before You Start Please check the Danfoss Air Unit packing list to ensure that the shipment is complete. If you have ordered a complete Danfoss Air Solution, a packing list for the Air Flex duct system is included. Inspect to ensure that no parts or components have been damaged. Danfoss Heating Solutions VIEWA502 3 Installation Guide Danfoss Air Units and Air Flex Duct Systems 2 Installation of Air Units Attic Units a² and a³ 1. Pull out the spigots 1 . 1 2. Turn the spigots around and mount them using the included tapping screws (for power drill, use lowest torque setting). 3. Make a platform 2 for the unit of 16 mm plywood or MDF sheet around 50 mm wall batts. 4. Allow for 60 cm free space in front of unit, to assure service access. 5. Make sure that the unit is mounted absolutely horizontal. 6. A siphon 5 must always be installed with the unit (to be ordered separately). 7. Mount the siphon on the joist 4 below the unit or in the room below the attic. 8. Connect the siphon to a drain 6 . 9. The condensate line 3 must be insulated where risk of freezing occurs. 10. Connect the hose to the unit outlet condensate spigot. Lead the connected pipe to the out- let, allowing for a gradient of min. 1 cm/metre. 11. Remove the front panel and foam front, fill the condensate tray, check the outlet and reas- semble the front. Wall Units w¹ and w² 1. Place the mounting bracket 1 on the wall in desired position (75 mm from bracket bottom to unit top), mark up and drill holes. Use screws suitable for the wall surface (not included). 2. Make sure that the bracket is mounted absolutely horizontal. 3. Hang the unit onto the bracket. 4. Attach the self-adhesive rubber separators 2 to the lower rear back plate. 5. Allow for 60 cm free space in front of unit, to assure service access. 6. A siphon 3 must always be installed with the unit (to be ordered separately). 7. Mount the siphon on the wall below the unit. 8. Connect the siphon to the drain 5 at the unit bottom. 9. The condensate line 4 must be insulated where risk of freezing occurs. 10. Connect the hose to the unit outlet condensate spigot. Lead the connected pipe to the out- let, allowing for a gradient of min. 1 cm/metre. 11. Remove the front panel and foam front, fill the condensate tray, check the outlet and reas- semble the front. Wall Unit w¹ In order to comply with safety standards and avoid the risk of malfunction, the supplied protection shield must be mounted on top of the w¹-unit covering the connector plate. 75 mm 1 3 2 4 5 6 1 2 5 4 3 6 4 VIEWA502 Danfoss Heating Solutions Installation Guide Danfoss Air Units and Air Flex Duct Systems 3 Installation of CCM Module and Air Dial 3.1 Electrical connections 1. Connect power cable 4 to Air unit 3 . 2. Plug in communication cable 2 between CCM module 1 and Air unit. 3. Check the signal. If it is too weak, the CCM module should be placed elsewhere, e.g. on the same floor as as the Air Dial (see Air Dial Link Test). 123 4 56 4. If possible, place CCM module close to an ethernet connection for future connection to PC. 2 5. If accessories (electrical preheating, electrical afterheating, water heating surface or geo- thermal surface) are present, the pin on terminals 5 and 6 must be removed (also see the instructions included with the accessories). Communication cable connections: 1 1. White/Orange, 2. Orange, 3. Black, 4. White/Blue, 5. Blue, 6. Black Note! The communication cable can be extended up to 200 m. Use shielded cable , 22 or 24 AWG with 2 x twisted pair. 3 4 3.2 Wireless connection When powering up the CCM module a green LED will flash slowly, indicating the CCM module has yet to be connected to the Air Dial. To connect the Air Dial, insert the batteries. The Air Dial will start up in installation mode to guide the installer through the set-up: 1. Set language. 2. Create network (press button on CCM module and then press `Air Dial'). 3. Set basic step (setting up the main air volume). 4. Finish. Connection established: green LED on CCM module lights continuously. Connection failed: red LED on CCM module flashes slowly 5 times, see Troubleshooting. 3.3 Air Dial The Air Dial has an integrated temperature sensor. To ensure best possible performance, place the Air Dial according to following guidelines: Place Air Dial 80-150 cm above floor. Place Air Dial free of curtains etc. Place Air Dial where the temperature is representative. Do not place in bathrooms. Do not place in direct sunlight. Do not place onto outer wall. Do not place directly above heat source. Air Dial Link Test Before mounting the Air Dial permanently, a link test should be carried out to ensure that transmission conditions are sufficient for the required location: 1. Hold down the Air Dial button for 5 seconds. The Service menu appears in the display (disappears automatically after one hour). 2. Select the Link Test function. 3. The function tells you if transmission conditions are sufficient or not. 4. If the link test fails, see Troubleshooting. Danfoss Heating Solutions VIEWA502 5 Installation Guide Danfoss Air Units and Air Flex Duct Systems 3.4 Mounting and removing CCM module and Air Dial CCM module Mounting: 1. Hook the CCM on the wall bracket. 2. Press downwards to click the CCM into place. 1 2 Removing: 1. Press in the two latches on the side. 2. Pull the CCM upwards. 1 2 1 Air Dial Mounting: 1. Hook the Air Dial on the wall bracket. 2. Press downwards to click the Air Dial into place. Removing: 1 1. Lift the Air Dial. 2. Pull the Air Dial away. 2 2 1 4 Balancing of the main air volume To achieve the best possible performance, it is vital to balance the main air volumes (balancing will also help protecting the house against fungus and dry rot). The system should not be balanced/commisioned at outdoor temperatures below -3°C, as the system will go into frost protection mode (indicated by a flashing icon on the display. If necessary to perform balancing at outdoor air temperatures below -3°C, remove power for 20 seconds to de-activate frost protection for 90 minutes. 1. Remove the front panel from unit by pulling the handles. 2. First close the valves, then open them completely (if the system is equipped with other duct types than Danfoss Air Flex, set supply and exhaust valves according to the instructions of the project manager). 3. If dampers are included in the system, open these completely. 4. Mount measuring tubes between the unit's measuring points on the exhaust side and differential pressure gauge. 5. Find the required flow on the system diagram (sticker on front cover) with the corresponding differential pressure value. If the pressure is too low, adjust the fan step upwards until you reach the required pressure. 6. Move the measuring tubes to the measuring points on the supply side and use the same procedure to set the supply air. 7. After the main air volumes have been adjusted, the set-up of individual valves needs to be carried out. In most cases, this will entail minor changes to the chosen basic steps, but this can be done in the room by adjusting the valves, or by using the Air Dial to fine tune basic steps. Adjusting an operational system 1. Press Air Dial for 5 seconds to get access to the Service menu. 2. Press "set basic step" to activate the special commissioning mode (where all outside influences are blocked - the installer controls the exhaust and supply air fans completely with 1-100% fan speed). The Service menu remains visible for one hour and then disappears. Measuring the exhaust Measuring the supply 6 VIEWA502 Danfoss Heating Solutions Installation Guide Danfoss Air Units and Air Flex Duct Systems 5 Service Menu Press the Air Dial button for 5 seconds to activate the Service Menu. System Reset 1. If the system has already been balanced, make a note of the basic fan steps for later use. The values is found in the service menu: Service > Info > basic steps. 2. Remove and re-insert the Air Dial batteries while pressing the button until a beep is heard. The Air Dial is now in start-up mode. 3. Remove the supply or communication cable. 4. While re-connecting the cable, press the CCM module button until only the green LED is flashing. 5. The system is now reset to factory settings. Service Back Info Set filter timer Set language Set basic step Link test Accessories 6 Dimensioning the Air Flex Duct System When dimensioning Danfoss Air Flex, a few important guidelines must be followed: The combined pressure loss for fresh air intake + supply should not exceed 100Pa. The combined pressure loss for extract + outlet should not exceed 100 Pa. The min. pipe length is 5 m. To obtain a flow per pipe 25 m³/h, the max. pipe length is 16 m. If the flow per pipe is 25-30 m³/h, the max. pipe length should not exceed 13 m. The difference between shortest and longest pipe connected to the same manifold should not exceed 10 m. Note! Pressure loss values for the components can be found in the Danfoss Air Flex product catalogue. 7 Installing Air Flex Manifold 7.1 Positioning the manifold If possible, the manifold should be positioned close to the Danfoss Air ventilation unit. Alternatively, determine the manifold position based on an assembly drawing (if available). An assembly drawing should only be considered to be a guide. If the manifold in the drawing is positioned inappropriate in relation to the construction or to other technical installations, the manifold should be moved. The manifold can be mounted on a wall or in the ceiling or cast in concrete slabs, depending on what is most appropriate for routing. Manifold in floor insulating material before casting Danfoss Heating Solutions VIEWA502 Manifold beneath ceiling inside climate shield 7 Installation Guide Danfoss Air Units and Air Flex Duct Systems 7.2 Mounting the manifold A silencer must be placed between ventilation unit and manifold - for supply as well as for extract (only supply is illustrated). The silencer should have the same diameter as the connecting pipe on the ventilation unit , and have a length of 900 mm. Fasten the manifold using the two brackets mounted beneath the base. Turn the brackets and fasten them to the substrate. If it is not possible to use the mounting brackets, the manifold can be fastened with metal strapping. To prevent possible nuisance, place a soft material (e.g. 2-3 mm of floor underlay) between the metal strapping and manifold. Close all unused spigots on the manifold with a plastic plug, type DEC-77 (item no. 089F0615). 7.3 Mounting the inspection hatch Cut a hole with max. Ø150 mm in the manifold where the inspection hatch is wanted. Place the inspection hatch, type DCH-150x150 (item no. 089F0643) over the hole and fasten the hatch with 4 self-tapping screws. 8 VIEWA502 Danfoss Heating Solutions Installation Guide Danfoss Air Units and Air Flex Duct Systems 8 Installing Air Flex Supply Box 8.1 Placing the supply air box The supply air box and grill should ideally be placed against a wall: beneath a window beneath a radiator beside a fireplace/stove If possible, avoid placing the grill underneath furniture or in the occupied zone. If an assembly drawing is enclosed, use it for guidance in positioning the box and grill. For wall mounting use a DPGW box, which is smaller and therefore fits in most inner walls. All physical dimensions of the DPGW box are listed in the Danfoss Air product catalogue. To fasten the grill and mount the damper, use exactly the same method as for floor mounting. 8.2 Mounting the supply air box in the floor Place the supply air box in insulation material so that the distance to the top edge of the finished floor can be adjusted with the telescopic collar (collar can be extended by 100 mm). Fasten the box with the two brackets mounted beneath the base. Turn the brackets and fasten them to the substrate. Danfoss Heating Solutions VIEWA502 9 Installation Guide Danfoss Air Units and Air Flex Duct Systems Mount an o-ring in the second groove on the Flex pipe. Mount the Flex pipe on the box. When the pipe is in place, fasten it by folding at least two of the four cut-outs in with a screwdriver or the like. Close unused spigots on the box and manifold with a plastic plug, type DEC-77 (item no. 089F0615). 10 VIEWA502 Danfoss Heating Solutions Installation Guide Danfoss Air Units and Air Flex Duct Systems 8.3 Casting The Flex pipe can be positioned across the insulating layer . However, to minimize heat loss it is 1 recommended to have minimum 100 mm insulation under the Flex pipe . Furthermore, we rec- Min. 100 mm ommend a minimum concrete thickness of 50 mm above the Flex pipe, but since this depends on the concrete type and the general floor building, this should be clarified with the responsible 2 for this contract. 3 Example: 1 Concrete 2 Insulation material (EPS) 1 3 Sand 2 Min. Min. 50 mm 100 mm 3 Lead the Flex pipe from underneath the insulation material. The recommended distance between the stand and insulation layer is 300 mm. Place a piece of EPS over the Flex pipe ends before casting. Fasten to ensure that the position is maintained during casting. In this example, two pieces of soft steel are used for the fastening. After casting, remove the fastened insulation material and mount the floor box. To fasten the floor box, use the two pre-mounted brackets. Danfoss Heating Solutions VIEWA502 11 Installation Guide Danfoss Air Units and Air Flex Duct Systems Before post-casting around the box, raise the telescoping collar to a level just above the finished floor height. Tape the passage between the telescoping collar and the box itself. Tape a piece of insulation material in the box's opening. Finally, fill the area around the box with insulation material and cast in place. When the concrete is dry, the telescoping collar can be loosened with a light blow and lowered down into the finished floor. In some cases, it may be easier to fill all or part of the hole with light expanded clay aggregate mixed with concrete. This will help prevent the relatively small pieces of insulation material from floating on the concrete during casting. When the finished floor is laid, pull out the box's adjustable insert and click the grill in place with four leaf springs. Place the grill in the insert and press it in place evenly on both sides. If a damper is selected for the grill, mount it beneath the grill by using the pre-mounted clips. 12 VIEWA502 Danfoss Heating Solutions Installation Guide The finished result. Danfoss Air Units and Air Flex Duct Systems 9 Installing Wall and Ceiling Valves 9.1 Positioning wall and ceiling valves The box and valves should be positioned in accordance with the room's function and design. The supply valve should preferably be positioned near a window, above a radiator or near a fireplace. Avoid positions directly over areas where people may be located for longer periods of time, i.e. above beds, sofas, dining tables, etc. The extract valve should be mounted in `wet' rooms, e.g. the kitchen, bathroom and utility room. If possible, the valve should be positioned where moisture develops, i.e. near showers, sinks, etc. If an assembly drawing is enclosed, it should be used as a guide for positioning the box and valve. Note! Please be aware that there is a difference between supply and extract valves. 9.2 Mounting wall and ceiling valves Mount the box so that the valve spigots are even with the finished wall/ceiling. Push the valve in place in the box . Danfoss Heating Solutions VIEWA502 13 Installation Guide Danfoss Air Units and Air Flex Duct Systems If necessary, correct the valve placement. 10 Installing Air Flex Pipes 10.1 Mounting Air Flex pipes in the floor Cut a route for the pipes in the insulation material. The width of the route should be adjusted to ensure a secure installation of the pipe. If it is not possible to fit the pipes into furrows in the insulation material, they can be fastened to the Rionet. Maximum distance between the fastening points/strips is 50-70 cm. To achieve the best possible seal of the system, mount an o-ring at each end of all pipes. Place the o-ring in the second groove from the end before mounting the pipe in a manifold, box or coupler. The pipes can then be mounted in the manifold. 14 VIEWA502 Danfoss Heating Solutions Installation Guide Danfoss Air Units and Air Flex Duct Systems When the pipe is in place, fasten it by folding at least two of the four cut-outs in with a screwdriver or similar. To keep concrete, building dust and other material from soiling the pipes during mounting, close all unused spigots. If the system is not used immediately after installation, the pipes must be sealed to prevent the accumulation of moisture. The pipes can be sealed with a plastic plug, type DEC (089F0613), or by closing the valves/grills. To the extent possible, avoid making `sharp' bends on the pipe, as this will increase the system pressure loss. When all pipes are mounted, thoroughly clean the manifold via the connecting pipe. 10.2 Mounting Air Flex pipes in walls and ceilings Wall mounting is recommended exclusively for internal partitions to prevent thermal bridges and penetrations of the climate shield. For ceiling mounting, it is also recommended to mount the pipes inside a climate shield. If this is not possible, the climate shield/damp-proof membrane must be thoroughly sealed with weather-resistant tape or specially developed membranes. For systems with geothermal surfaces, the supply pipe must be insulated with at least 30 mm of insulation material to prevent external condensation. If the enclosed mounting brackets cannot be used, metal strapping can be used to fasten the boxes. It is important that the pipes are fully extended before fitting to minimise pressure loss in the system. Danfoss Heating Solutions VIEWA502 15 Installation Guide Danfoss Air Units and Air Flex Duct Systems This is an example of six correctly laid Flex pipes beneath the ceiling on the inside of the climate shield. When fitting the ceiling, make sure that the screws are not damaging the pipes. When all pipes are mounted, thoroughly clean the manifold via the connecting pipe 10.3 Coupling of two Air Flex pipes If it is necessary to extend a pipe or connect two pipe ends, this can be done with a pipe coupling, type DPC (089F0607). If a sharp 90° bend is needed, use a 90° elbow, type DFE (089F0654). Place an o-ring in the second groove of both pipes that are to be connected. 16 VIEWA502 Danfoss Heating Solutions Installation Guide Finished couplings. Danfoss Air Units and Air Flex Duct Systems 11 Insulation and Sound Damping The entire Danfoss Air Flex duct system must be thoroughly insulated to minimise heat loss and prevent condensation. Pipes are recommended to be covered with 100 mm of insulation. Sound-damping the system is important for general comfort and wellbeing. A silencer with a length of 900 mm should be mounted between the unit and the manifold to reduce noise from spreading through the system. In some cases, it might also be advisable to mount silencers at the outlet and air inlet ends. 12 Installing Roof Terminals and Wall Grills Roof terminals and wall grills are visible on the outside of the house. They should therefore always be adapted to the architectural style of the house. It is recommended to place the terminals at least 3 m horizontally apart, or 1 m vertically apart always with the outlet terminal at the top. Terminals and grills should be placed on a north- or an east-facing surface for optimal comfort. The outlet should be placed above the top window and at least 1 m from all windows. 3 m 1 m 3 m 13 Technical Data 13.1 a² Unit Dimensions 325 160 1263 1180 3 1 4 2 325 580 1 Outdoor air 2 Exhaust air 3 Extract air 4 Supply air Weight of unit: 52 kg 177 450 600 450 177 Danfoss Heating Solutions VIEWA502 17 Installation Guide Danfoss Air Units and Air Flex Duct Systems Front view (without front panel) 4 1 2 5 6 3 6 5 1 Filter, extract air 2 Filter, supply air 3 Flow chart (for balancing) 4 Filter reset button 5 Differential pressure for extract air 6 Differential pressure for supply air Capacity Pressure [Pa] 350 300 250 *0.45 W/m³/h 200 150 1000 J/m³ 100 50 85% 70% 58% 21% 33% 46% 0 0 50 100 150 200 250 300 350 * 0.45 W/m³/h = "Passiv Haus" requirements. 100% 400 450 Flow [m³/h] Temperature ratio [%] 94% 93% 92% 91% 90% 89% 88% 87% 86% 85% 84% 83% 0 50 100 150 200 250 300 Flow [m³/h] Extract air t = 21°C RH = 36% t = 25°C RH < 27% Fresh air t = -3°C RH = 80% t = 5°C with condensation and 5% imbalance as acc. to EN308 Typical operation Flow 160 m³/h 220 m³/h 220 m³/h 260 m³/h 260 m³/h 300 m³/h Pext. 50 Pa 70 Pa 100 Pa 70 Pa 100 Pa 90 Pa SFP 615 J/m³ 728 J/m³ 854 J/m³ 783 J/m³ 894 J/m³ 936 J/m³ P1 tot. 27 W 44 W 52 W 57 W 65 W 78 W Sound data Flow Pressure m³/h Pa Measured at: Frequency band, sound power Lw(A) [dB(A)] 63 Hz 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz Supply air duct 23 34 40 36 29 25 17 162 70 Extract air duct 23 33 39 37 29 24 18 Cabinet Supply air duct 25 35 43 38 31 28 18 162 100 Extract air duct 25 36 42 39 30 25 17 Cabinet Supply air duct 26 36 44 39 33 30 19 216 70 Extract air duct 28 36 43 41 34 29 18 Cabinet Supply air duct 26 37 44 40 34 31 19 216 100 Extract air duct 27 37 45 42 35 30 19 Cabinet Supply air duct 28 39 46 42 37 33 21 250 100 Extract air duct 30 39 48 45 38 33 20 Cabinet * Values for sound pressure calculated for a standard room with A = 10 m², H = 2.4m and mean absorption 0.2. 8 kHz 18 18 18 18 18 18 18 18 18 18 Sound pressure Lp(A) (standard* room) [dB(A)] 40 41 45 46 49 18 VIEWA502 Danfoss Heating Solutions Installation Guide Danfoss Air Units and Air Flex Duct Systems 13.2 a³ Unit Dimensions 528 250 318 1342 1180 3 1 4 2 780 528 318 1 Outdoor air 2 Exhaust air 3 Extract air 4 Supply air Weight of unit: 67 kg 160 440 600 440 160 Front view (without front panel) 4 1 2 5 6 3 6 5 1 Filter, extract air 2 Filter, supply air 3 Flow chart (for balancing) 4 Filter reset button 5 Differential pressure for extract air 6 Differential pressure for supply air Capacity Pressure [Pa] 300 250 200 *0.45 W/m³/h 150 100 1000 J/m³ 50 82% 100% 40% 56% 0 0 50 100 150 200 250 300 350 400 450 500 550 600 * 0.45 W/m³/h = "Passiv Haus" requirements. Flow [m³/h] Temperature ratio [%] 90% 89% 88% 87% 86% 85% 84% 83% 82% 81% 80% 0 50 100 150 200 250 300 350 400 450 500 Flow [m³/h] Extract air t = 21°C RH = 36% t = 25°C RH < 27% Fresh air t = -3°C RH = 80% t = 5°C with condensation and 5% imbalance as acc. to EN308 Typical operation Flow 200 m³/h 350 m³/h 450 m³/h 350 m³/h Pext. 70 Pa 70 Pa 70 Pa 100 Pa SFP 787 J/m³ 835 J/m³ 973 J/m³ 1000 J/m³ P1 tot. 44 W 81 W 122 W 97 W Sound data Flow Pressure m³/h Pa Measured at: Frequency band, sound power Lw(A) [dB(A)] 63 Hz 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz Supply air duct 35 45 56 49 47 44 31 350 70 Extract air duct 35 44 54 48 48 44 31 Cabinet 33 42 54 46 45 43 30 Supply air duct 39 48 62 55 52 50 37 450 100 Extract air duct 39 47 61 55 53 48 37 Cabinet 38 46 60 52 50 47 36 * Values for sound pressure calculated for a standard room with A = 10 m², H = 2.4m and mean absorption 0.2. 8 kHz 16 19 20 22 20 22 Sound pressure Lp(A) (standard* room) [dB(A)] 57 61 Danfoss Heating Solutions VIEWA502 19 Installation Guide Danfoss Air Units and Air Flex Duct Systems 13.3 w¹ Unit 530 160 1005 125 5 3 1 2 4 108 287 438 125 161 254 296 224 430 6 9 8 7 10 8 9 1 Supply air 2 Extract air 3 Exhaust air 4 Outdoor air 5 Condensate drain 6 Filter, extract air 7 Filter, supply air 8 Differential pressure for extract air 9 Differential pressure for supply air 10 Filter reset button Weight of unit: 31 kg Capacity Pressure [Pa] 350 300 250 200 *0.45 W/m³/h 150 1000 J/m³ 100 50 0 0 46% 21% 33% 70% 58% 50 100 150 200 * 0.45 W/m³/h = "Passiv Haus" requirements. 100% 85% 250 300 Flow [m³/h] Temperature ratio [%] 93% 92% 91% 90% 89% 88% 87% 86% 85% 84% 0 50 100 150 200 250 Flow [m³/h] Extract air t = 25°C RH = 52% t = 25°C RH < 27% Fresh air t = 5°C RH = 80% t = 5°C with condensation and 5% imbalance as acc. to EN308 Typical operation Flow 100 m³/h 100 m³/h 140 m³/h 140 m³/h 180 m³/h 180 m³/h Pext. 35 Pa 55 Pa 60 Pa 70 Pa 70 Pa 100 Pa SFP 588 J/m³ 682 J/m³ 710 J/m³ 759 J/m³ 798 J/m³ 945 J/m³ P1 tot. 16 W 19 W 28 W 30 W 40 W 47 W 20 VIEWA502 Danfoss Heating Solutions Installation Guide Danfoss Air Units and Air Flex Duct Systems Sound data Flow Pressure m³/h Pa Measured at: Frequency band, sound power Lw(A) [dB(A)] 63 Hz 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz Supply air duct 20 30 41 42 38 30 19 126 70 Extract air duct 18 30 41 41 30 26 18 Cabinet Supply air duct 22 32 46 45 39 32 21 126 100 Extract air duct 22 33 43 42 32 27 19 Cabinet Supply air duct 23 31 43 46 41 33 22 162 70 Extract air duct 26 31 42 43 33 29 21 Cabinet Supply air duct 28 33 44 48 33 35 23 162 100 Extract air duct 29 34 44 51 37 31 23 Cabinet Supply air duct 28 33 44 54 46 37 28 216 70 Extract air duct 27 33 43 52 39 33 27 Cabinet Supply air duct 28 35 45 55 46 38 29 216 100 Extract air duct 32 34 44 52 40 34 28 Cabinet * Values for sound pressure calculated for a standard room with A = 10 m², H = 2.4 m and mean absorption 0.2. 8 kHz 18 18 18 18 18 18 18 18 18 18 18 18 Sound pressure Lp(A) (standard* room) [dB(A)] 47 50 53 55 57 56 13.4 w² Unit 590 1055 5 3 2 1 4 110 295 480 126 580 270 389 6 9 8 7 10 8 9 1 Supply air 2 Extract air 3 Exhaust air 4 Outdoor air 5 Condensate drain 6 Filter, extract air 7 Filter, supply air 8 Differential pressure for extract air 9 Differential pressure for supply air 10 Filter reset button Weight of unit: 45 kg Capacity Pressure [Pa] 300 250 200 *0.45 W/m³/h 150 100 1000 J/m³ 100% 50 85% 70% 58% 46% 21% 33% 0 0 50 100 150 200 250 300 350 400 * 0.45 W/m³/h = "Passiv Haus" requirements. Flow [m³/h] Temperature ratio [%] 94% 93% 92% 91% 90% 89% 88% 87% 86% 85% 84% 83% 0 50 100 150 200 250 300 Flow [m³/h] Danfoss Heating Solutions VIEWA502 21 Installation Guide Danfoss Air Units and Air Flex Duct Systems Extract air t = 21°C RH = 36% t = 25°C RH < 27% Fresh air t = -3°C RH = 80% t = 5°C with condensation and 5% imbalance as acc. to EN308 Typical operation Flow 160 m³/h 220 m³/h 220 m³/h 260 m³/h 260 m³/h 280 m³/h Pext. 50 Pa 70 Pa 100 Pa 70 Pa 100 Pa 90 Pa SFP 700 J/m³ 832 J/m³ 963 J/m³ 892 J/m³ 996 J/m³ 1000 J/m³ P1 tot. 31 W 51 W 59 W 64 W 72 W 78 W Sound data Flow Pressure m³/h Pa Measured at: Frequency band, sound power Lw(A) [dB(A)] 63 Hz 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz Supply air duct 20 30 34 36 23 19 17 126 50 Extract air duct 16 31 37 36 29 21 17 Cabinet Supply air duct 23 33 35 40 32 24 18 162 70 Extract air duct 20 33 44 39 34 26 18 Cabinet Supply air duct 25 36 42 42 34 28 18 162 100 Extract air duct 21 33 43 41 35 28 18 Cabinet Supply air duct 25 34 42 42 35 28 19 216 70 Extract air duct 22 34 44 43 37 31 20 Cabinet Supply air duct 26 36 43 44 36 30 20 216 100 Extract air duct 23 34 45 44 33 32 20 Cabinet Supply air duct 27 36 45 45 38 31 21 250 100 Extract air duct 24 37 47 45 40 34 22 Cabinet * Values for sound pressure calculated for a standard room with A = 10 m², H = 2.4m and mean absorption 0.2. 8 kHz 18 18 18 18 18 18 18 18 18 18 18 18 Sound pressure Lp(A) (standard* room) [dB(A)] 39 44 46 47 49 53 22 VIEWA502 Danfoss Heating Solutions Installation Guide Danfoss Air Units and Air Flex Duct Systems 14 Troubleshooting Error Alarm: Filter error Alarm: Battery low Alarm: No connection to CCM Alarm: No connection via modbus Alarm: Room air too cold Alarm: Fire Alarm: Sensor error Abnormally large negative pressure inside the house, doors binding Condensation in window frames House temperatures are too high Noise from unit Noise from Air valves Frost icon in display Cause Air filters are dirty. Battery voltage in Air Dial is too low. Communication between Air Dial and CCM module has failed, typically caused by an obstacle between Air Dial and CCM module, e.g. steel piping, other steel objects, insulation material clad with aluminum foil, etc. Another cause can be other wireless appliances that does not conform to wireless standards (radio noise). Cable between CCM module and unit is unplugged or defective. Central heating system is not supplying heat. Room temperature is dropping, so the unit turn off to reduce involuntary heat loss. Alarm active if Air Dial measures a room temperature below +10°C. One of four temperature sensors in Danfoss Air unit or temperature sensor in Air Dial remote control has detected a temperature higher than +70°C. Unit turns off until all sensors indicate < +70°C. Temperature sensor in Danfoss Air unit or Air Dial is defective. Discharge air flow is larger than supply air flow. Either balancing was not carried out correctly during set-up of the system or unit is in extreme defrost conditions (can occur at outdoor temperatures < -12°C). Air exchange is too low. Condensation occurs when humidity is high and surface temperatures are low, typically in bathrooms or utility rooms, where clothes are drip drying (some condensation in bathrooms following a shower is normal, but should disappear within half an hour). House thermostats are set too high. Bypass is disabled on ventilation system. a-type unit: vibration noise may occur if unit is mounted directly onto joists. Unit should be mounted on a suitable platform. w-type unit: vibration noise may occur if rubber spacers are not fitted between unit and wall and/or if silicone strip is not fitted onto wall bracket. Defective fan bearings will produce a `grinding noise'. Air flow is too high. Pressure is too high over valve. No silencer is fitted to main duct. The system is in defrost mode, because low outdoor temperatures entail a risk of ice forming in the heat exchanger. Solution Exchange air filters. Replace batteries (4 x AAA) in Air Dial. If an obstacle has been identified, move it. If this is not possible, move CCM module to a better location with a free `line of sight'. If the error occurs due to other wireless appliances in your house, try switching these off in turn to identify the faulty device. If none of the above helps, please contact your installer. Check cable and reconnect if necessary. If cable is connected, but error still occurs - contact installer. Check if heating system is functional. If the problem can not be solved, contact plumber/installer. When error has been remedied, shut down and restart ventilation system to resume normal operation. Power can be disconnected by pulling power cable from system. Examine all rooms, leave the house. When error has been remedied, shut down and restart ventilation system to resume normal operation. Power can be disconnected by pulling power cable from system. Contact installer. System continues to run, but with limited functionality. Imbalance of flow should be 4-10% in favour of extract air, but if problems with doors binding is permanent, contact installer. If problems only arises during extreme winter condition, it is due to the integrated defrost function that reduces the supply air (hence not a defect, but an expected, and very rare occurrence). Increase fan step (Manual mode) or change to Demand mode or Programme mode. Set Autoboost. on. Turn down thermostats. Enable Bypass in Main menu > Bypass > Auto bypass. Check that unit is mounted on platform, according to installation manual. Check that rubber spacers and silicone strip are fitted, according to installation manual. If fan ball bearing is suspected to be defective, contact installer. Noise is not a problem in a correctly sized and commissioned system. However, if air valves are closed (e.g. during cleaning), a hissing noise may occur. This is not an error, but a standard mode. The function stops automatically when the outdoor temperature rises. Danfoss Heating Solutions VIEWA502 23 Installation Guide Danfoss Air Units and Air Flex Duct Systems Danfoss A/S Heating Solutions Ulvehavevej 61 7100 Vejle Denmark Phone:+45 7488 8500 Fax: +45 7488 8501 Email: heating.solutions@danfoss.com www.heating.danfoss.com Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. Danfoss Heating Solutions and the Danfoss Heating Solutions logotype are trademarks of Danfoss A/S. All rights reserved. VIEWA502 Produced by Danfoss Heating Solutions © 06/2012