RoomMaster ABR-2. Installation

Transcription

1 Installation

2 List of contents General General... 3 Specification... 3 Accessories... 3 Dimensions and weight... 3 Delivery and transport... 4 Disassembling the unit... 4 Positioning the unit... 5 Reduced transport weight... 5 Safety regulations... 6 Electrical connection... 6 Combi-hood... 6 Ducts... 6 Condensation insulation of ducts... 7 Thermal insulation of ducts... 7 Damper - Risk of freezing... 7 Assembly - Damper... 7 Outdoor air damper for not prepared units... 7 Installation Alternative installations... 8 Connection at the rear... 8 Connection at the side... 8 Connection in a corner... 9 Variable distribution pattern Accessories Presence indicator Exhaust air connection Kit for modifying distribution pattern Carrying handle Connection box Combi-hood Outdoor air damper Interior panelling to ceiling Fläkt Woods 8059 GB Specifications are subject to alteration without further notice.

3 Safety information Important safety information Read carefully through the directions, advice and warning texts contained in the operating instructions before the room unit is installed and taken into service. The RoomMaster size 2 will then function in a satisfactory fashion and provide the greatest benefit. The unit must be operated by adults. Do not allow children to play with it or touch the controls. All installation work and interventions in the product must be performed by an authorized specialist. Work done by inadequately qualified persons may impair the function of the RoomMaster and cause damage to individuals and property. Servicing and repairs should be carried out by a service company approved by the supplier. Use only spare parts obtained from them. Make certain that the power supply cable is not trapped when installing or moving the unit. The unit is heavy. The risk of crushing injury is present when lifting or disassembling the unit. If necessary, use appropriate lifting accessories or other suitable equipment. Take care when moving the unit. The unit must be connected to ducts before it can be started up. Use protection gloves when installing the unit. If the unit is not to be installed directly after delivery, it should be kept under a roof with the packing still on. Fläkt Woods 8059 GB Specifications are subject to alteration without further notice.

4 General, specification, dimensions and weights General RoomMaster is a complete air handling system with a supply air and exhaust air capability comprising a single ABR room unit with the necessary control and regulation equipment and an integral Floormaster terminal device. This is the new, simple approach to air handling in rooms in the same fire cell in schools, offices, conference rooms, shops, foyers/waiting rooms, leisure centres and production areas, etc. The purpose of the unit is to provide good ventilation of the premises with the least possible intervention. It is not allowed to install the unit in sanitary areas. The outdoor air is filtered, and a very considerable proportion of any heat in the exhaust air is transferred to the supply air in a rotary heat exchanger. The air is supplied to the premises via a displacement supply air terminal device, which allows the air to flow out slowly over the floor and to displace any heat and impurities towards the ceiling, from where they are led away as exhaust air. Dimensions and weight The principal dimensions of the unit can be seen in Fig Specification Room Unit ABR-a-b-c-d Size (a) 2 = standard flow 250 l/s Execution, rotor type (b) 1 = standard, non-hygroscopic rotor 750 Afterheater (c) 1 = electrical heater, 1 kw 100 Cooling coil (d) 0 = without 1 = cooling (water) ø 250 Accessories Combi-hood ABRZ Kit for modifying distribution pattern ABRZ Interior panelling to ceiling ABRZ-03-2 Presence indicator ABRZ-04-2 Fig. 1. Dimensions Exhaust air connection ABRZ-05-2 Outdoor air damper ABRZ-06-2 Weight Carrying handle, kit Replacement filter, kit ABRZ-07-2 ABRZ-08-2 Top (complete) Top (empty) Bottom, without cooling coil 203 kg 117 kg 68 kg Complete unit 270 kg Complete unit, incl. packaging 295 kg Fläkt Woods 8059 GB Specifications are subject to alteration without further notice.

5 Transport, disassembling the unit Delivery/transport The unit is supplied ready assembled on a pallet that is used for lifting and transport. Fläkt Woods recommend that the unit should be disassembled and emptied of components and also that lifting handles is used to facilitate transport to the installation site. Disassembling the unit 1. Make sure that the unit is dead by pulling out the plug. 2. Open the inspection doors, using the key supplied; see Fig Lift out the safety plate in front of the electrical compartment (1 in Fig. 2). First raise the plate, and then pull its lower edge out and down. 4. Disconnect the electric cable (2), which is connected to the right-hand door, from the control card. 5. Lift off both doors (3) from their hinges. 6. Disconnect the connector for the electric air heater (10), and pull it out complete with the dividing wall. 7. Disconnect the connector for the lower fan (11). 8. Unscrew the two hexagonal bolts (10 mm spanner) on the fan mounting flange, and pull it out. 9. Carefully pull up the electric cable (7) for the supply air sensor until the bulb (inserted in a cable shoe; see detailed drawing) comes up against the rubber grommet, and tape the cable securely to the bottom panel of the unit. N.B. If the unit is equipped with a cooling coil, the right-hand front grille (8) of the terminal device part must be removed (bolts at the top and bottom edges). Then disconnect the connector (9) for the three-core cable. 10. Release the retainers for the lower filter cassette (12) (by pulling out the red handles), and pull it outwards. 11. Undo the four hexagonal bolts (15 in Fig. 3) (13 mm spanner) located on the bottom of the upper part of the unit. 12. Unscrew the two recessed-head screws (16) which secure the connecting plate between the terminal device part and the unit part. The plate is located centrally at the front of the unit and also serves as an attachment for the front grille of the terminal device part. 13. Fix the lifting handles (17), if required (accessory), with M8 bolts. 14. Lift off the unit part from the terminal device part Fig. 2, Principle parts of the unit. 1. Safety plate for electrical compartment 2. Connector on control card 3. Door 4. Dividing wall 5. Fan (exhaust air) 6. Filter (supply air) 7. Cable for supply air sensor 8. Front grille of terminal device part 9. Cable connector for cooling coil control valve (located on the end wall in the bottom part) 10. Electric air heater 11. Fan (supply air) (concealed in the Figure) 12. Filter (exhaust air) 13. Connector for presence sensor 14. Power supply cable, length 2.6 m Fläkt Woods 8059 GB Specifications are subject to alteration without further notice.

6 Positioning the unit, safety Fig. 5 Bärare stående 3657A 5;3,2 ABR fig Fig. 3 Fig Hexagon bolts, 4-off 16. Recessed-head screws in connecting plate 17. Lifting handles, accessory If it is preferred to transport the unit part lying down, one of the lifting handles can be moved to the right-hand upper short side; see Figs. 3 and Rotary heat exchanger 19. Connector Reduced transport weight The weight can be further reduced other than by disassembling the unit. 1. Pull out the dividing wall (located between the fan and the filter). 2. Disconnect the connector for the upper fan (5). 3. Unscrew the two hexagonal bolts (10 mm spanner) on the fan mounting flange, and lift it out by the flange. N.B. Protect the heat exchanger from damage when dismantling the upper fan. 4. Release the retainers for the upper filter cassette (6) (by pulling out the red handles), and pull it outwards. 5. Disconnect the two connectors (19) on the heat exchanger. 6. Remove the heat exchanger unit (18) as a whole by lifting and pulling at the same time. Positioning the unit Position the unit against a wall or in a corner. Make sure that the unit is solidly attached to the wall and that it is placed on a flat surface to avoid it from falling over. A position close to an outside wall is preferable, as this gives a short ducting run. A free clearance of 0.8 m is required in front of the unit to permit the cover to be opened. Safety regulations A rating plate is attached to the plinth of the unit. A safety warning is given on the cover of the electrical control cabinet. The STOP operating position on the control panel is a secondary connection which does not isolate the unit from the mains supply when it is switched off. Opening the doors causes the safety cut-out to interrupt the power supply to the components in the unit. N.B. Pull out the plug to ensure that the unit is dead before starting work in the electrical control cabinet. The unit has EC approval. Fläkt Woods 8059 GB Specifications are subject to alteration without further notice.

7 Electrical connection, combi-hood, ducts, damper Electrical connection The unit is connected by means of a plug to a singlephase 230 V, 10 A earthed socket. The maximum power consumption of the unit is 1670 W with an electric after-heater. All internal wiring is done at the factory. If the standard electrical, control or regulation connection is modified, the plug must be removed and replaced with a permanent electrical connection. Wiring must be done by a qualified electrical contractor and in accordance with current regulations. Combi-hood An exterior wall hood for both outdoor air and exhaust air is available as an accessory for the unit. This prevents the possibility of a short-circuit between the two airflows by the exhaust air exiting from the hood at relatively high velocity, and the outdoor air being taken in level with the wall. The dimensions of the combi-hood are given in Fig. 6. The hood is made of black plastic-coated sheet metal. The front panel is detachable and can be rotated for left-hand or right-hand installation. Outdoor air must always be taken in from below. The two push-in connections have rubber seals and a Ø 250 mm connection. The hood is fixed to the wall by screwing or nailing. Sealing with the façade is necessary to prevent water from entering. Fig Ducts ø 250 The unit s sleeve couplings have a push-on dimension of 250 mm. Their position is shown in Fig. 7. With the rear surface of the unit against an exterior wall, it is possible to connect directly to the specially developed combi-hood, which is described elsewhere. The ducts are installed according to the following instructions so that they match the connections of the combi-hood. The ducts can naturally also be led directly through the roof. This is usually more expensive, and imposes a greater sealing requirement. The ducts are provided with 30 mm of external insulation with a waterproof outside surface (diffusion barrier). Note that this applies both to elbows on the unit and to ducts as far as outside walls. It must not be possible for room air to enter the insulation, resulting in the risk of condensation ø ø 250 Fig. 7. Duct connection upwards (part code d = 2). Condensation insulation of ducts The outdoor air and extract air duct transports cold air and must, therefore, always be provided with condensation insulation where the duct passes through a warm area. The ducts are provided with 30 mm of external insulation with a waterproof outside surface (vapour barrier). Note that this applies both to elbows on the unit and to ducts as far as walls. The ingress of room air into the insulation is associated with the risk of condensation of water vapour on the outside of the duct. Thermal insulation of ducts In order to safeguard the function and achieve high heat recovery, cold ducts such as those used for the outdoor air and extract air duct must be provided with additional insulation on top of the condensation insulation. This applies to places with a low outdoor temperature and when cladding is installed up to the ceiling. An exhaust air duct which passes through cold areas must always be insulated with at least 100 mm of external insulation. Damper - risk of freezing In order to be able to use the STOP operating mode, a damper with automatic closing is required in the exhaust air duct and a multi-louvre damper in the extract air duct. The absence of a damper will allow impurities to enter the unit by the back way, and the room and the unit will be cooled down during cold times of the year. Cooling of the room leads to increased heating costs and increases the risk of operating breakdowns with the unit. A unit with a water cooling coil (part code c = 2) must always be equipped with a damper if no anti-freeze is present in the cooling water. Fläkt Woods 8059 GB Specifications are subject to alteration without further notice.

8 Damper assembly, connection at the rear Damper assembly Outdoor air damper AB with actuator is designed for units prepared from the factory with transformer and steering components. The damper i ready to connect to the unit and suits both connections at the rear and at the top. The actuator has a supply air voltage of 24VAC controlled by a pressure switch. The outdoor air damper is supplied complete with damper unit and motor actuator with electrical connection. 6. Fit the combi-hood on the outside of the wall, directly in line with the holes, by screwing or nailing the hood to the wall as shown in Fig. 9. The joint with the wall above the combi-hood should be sealed with jointing compound. 7. Seal with foam between the unit and the wall. Outdoor air damper for not prepared units The damper can be installed in all versions of ABR-2. Mounting kit with transformer and pressure switch with cabling can be ordered separately. Foam or Skum eller insulation isolering Sealing Tätningsmassa compound Combi-hood Kombihuv Connection at the rear 1. Decide where the unit is to be positioned in the room. 2. Make holes for the ducts in the wall, as shown in Fig. 8. Note that the lateral dimension is measured from the proposed position of the unit. Fix Spikas with nails eller or skruvas screws 500 mm Fig. 9. Unit with connection at the rear viewed from the right-hand side. Min. ø285-max ø350 alt. 310x Fig. 8. Hole dimensions for alternative installations with duct connection at the rear 3. Now slide the unit into place. 4. Fit the straight duct elements from inside the room towards the connections in the combi-hood. 5. Fill the space between the ducts and the holes in the wall with insulation or foam. Fläkt Woods 8059 GB Specifications are subject to alteration without further notice.

9 Connection at the side, connection in a corner Connection at the side 1. Make a hole for the ducts in the wall, as shown in Fig. 10. Note that the dimensions are the same irrespective of the side from which duct connection takes place. 2. Position the unit against the wall. 3. Fit the duct elbows to the unit for each connection side, as shown in Figs. 11 or Fit the straight duct components inside the room towards the holes in the interior wall. At the same time, pass the cover plate loosely over the ducts. 5. Measure the ducts and cut to length flush with the exterior wall. 6. Fit the cover plate on the inside of the wall by fixing it with screws. 7. Then tape the joints between the duct elbows and the straight ducts, and those between the straight ducts and the cover plates; see Fig Fill the space between the ducts and the holes in the wall with insulation or foam, working from outside the wall. 9. Fit the combi-hood by first connecting it to the ducts from inside the room, and by then screwing or nailing the hood to the wall as shown in Fig. 13. The joint with the wall above the combi-hood should be sealed with jointing compound. Fig. 11. Duct routing to the left. Fig. 12. Duct routing to the right Ducts Kanaler can kapas be jäms extended up med to yttervägg ceiling level Täckplåt Cover plate Kanaler Cut ducts kan flush förlängas with Sealing Tätningsmassa upp exterior compound till taknivå wall Tejp Tape Combihood Kombihuv Isolering Insulation or eller skum foam Fix Spikas with nails eller or screws skruvas min 2510 min 2510 Min. ø 285 Max. ø 350 alt. 310 x 680 Fig. 13. Duct routing to the right. Unit viewed from the front. Connection in a corner See installation alternative, Connection to the side, for details of holes, insulation and fixing of combi-hood. Fig. 10. Hole dimensions for installation with duct connection to the side, Fig. 14. Connection in a corner, upwards. Fläkt Woods 8059 GB Specifications are subject to alteration without further notice.

10 Variable distribution pattern Variable distribution pattern The distribution pattern from the supply air terminal device can be changed to avoid problems with draughts, for example when repositioning furniture. The normal distribution pattern can be seen from Fig. 17. The broad distribution pattern, shown in Fig. 18, is obtained with the help of an accessory kit fitted on the inside of the front diffuser mat, as shown in Fig. 19. The cover strips are pressed firmly against the front diffuser mat by hand. An intermediate pattern can be achieved if only the wide cover strip is fitted. ABR Fig. 17. Normal distribution patter. Fig. 15. Duct connection to the rear. ABR Fig. 18. Broad distribution pattern (1104) Fig. 19. Installation of cover strip accessory kit. Fig. 16. Duct connection to the side. Fläkt Woods 8059 GB Specifications are subject to alteration without further notice.

11 Accessories Combi-hood ABRZ-01-2 Presence indicator AB Närvarogivare Presence sensor Instructions on page 7. Kit for modifying distribution pattern ABRZ-02-2 Exhaust air connection AB Grille Galler Damper Spjällenhet unit Exhaust air from Frånluft från adjoining angränsande rooms rum Fästram med stosar dim 125 Mounting frame with sleeves Installation instructions can be found under the heading, "Variable distribution pattern", on page 10. Damper Spjällåsning locking Interior panelling to ceiling AB Outdoor air damper AB See separate instructions. Carrying handle AB See separate instructions. Fitting instructions on pages 5 and 6, and in Figs. 3 and 4. Fläkt Woods 8059 GB Specifications are subject to alteration without further notice.

12 FWG_AHU_ABR2 Technical instruction_ _se_8059 Condesign Info Productions AB ABF5533 Fläkt Woods AB Jönköping t f w