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Related Manuals for Daikin UATYA-BBY1
Summary of Contents for Daikin UATYA-BBY1
- Page 1 Installation, use and maintenance manual Rooftop Packaged Unit R-32 rooftop series – Base, 2-,3- and 4-damper versions Made-To-Stock models UATYA-BBY1 UATYA-BBC2Y1 UATYA-BBC3Y1 Made-To-Order models BASE Installation, use and maintenance manual English Rooftop Packaged Unit...
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Page 3: Table Of Contents
Contents Introduction Conformity Description 1.2.1 Symbols 1.2.2 Labels Safety General safety precautions 2.1.1 Discharge of the safety valves 2.1.2 Emergency stop Basic rules 2.2.1 Limits to the use – Minimum area of the conditioned space and maximum refrigerant charge 2.2.2 Refrigerant leak detector 2.2.3 Water flow rate at the heat exchangers... - Page 4 4.8.4 Time band setup procedure 4.8.5 Change language 4.8.6 Change date and time Wiring diagram Installation Dimensions and weight Installation site Installation 5.3.1 External positioning 5.3.2 Fitting of rain hoods 5.3.3 Anti-vibration mounts 5.3.4 Noise attenuation 5.3.5 Minimum distances Hydraulic connections 5.4.1 Hot water coil connection 5.4.2...
- Page 5 Decommissioning We reserve the right to make changes without any prior notice. Translation from original instructions UATYA Packaged Rooftop 4P645202-1...
- Page 6 THANK YOU Thank you for choosing our product. It is the result of many years’ experience and careful design and has been built with first-class quality materials and advanced technologies. Declaration or certificate of conformity also guarantees that the equipment meets the requirements of the European Machinery Safety Directive.
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Page 7: Introduction
INTRODUCTION 1.1 Conformity With regard to relevant regulations and directives, see the declaration of conformity that is an integral part of the manual. 1.2 Description 1.2.1 Symbols A description of the main symbols used in this manual and on the labels affixed to the unit is given below. Danger symbol;... -
Page 8: Labels
1.2.2 Labels For the constructional features, available models and technical data, please refer to the Technical Catalogue. The model, serial number, features, power supply voltage and so on are shown on the labels affixed to the unit (the following illustrations are shown only as an example). The Manufacturer adopts a continuous development policy and, in this perspective, reserves the right to make changes and improvements to the documentation and to the units without prior notice. -
Page 9: Safety
SAFETY 2.1 General safety precautions Access to the area around the unit must be prevented by special guarding where this is positioned in a location that is not protected and can be reached by unqualified persons. The equipment operator is responsible for complying with regulatory obligations. The equipment operator is the person who has actual control over the technical operation and free access, which means the possibility of monitoring its components and their operation and the possibility of granting access to third parties. -
Page 10: Discharge Of The Safety Valves
In units with capacitors and/or inverters, certain components can remain live for several minutes even after having turned off the main switch. Wait 10 minutes before working on the electrical parts of the unit. Circuits supplied from external sources (made with orange cable) can remain live even after the power supply to the unit has been turned off. -
Page 11: Basic Rules
2.2 Basic rules All the units are designed and built in compliance with Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the approximation of the laws of the Member States relating to pressure equipment. To ensure maximum safety, in order to prevent possible risks, follow the instructions below: - this product contains pressurised vessels, live components, moving mechanical parts and very hot and cold surfaces that, in certain situations, can pose a risk: all maintenance work must be carried out by skilled personnel... -
Page 12: Limits To The Use - Minimum Area Of The Conditioned Space And Maximum Refrigerant Charge
2.2.1 Limits to the use – Minimum area of the conditioned space and maximum refrigerant charge Clause GG.9 of Annex GG within the standard IEC 60335-2-40:2018 (Household and similar electrical appliances - Safety - Part 2-40: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers) defines the charge limits based on the total conditioned space area and the ventilation requirements for ducted appliances using A2L refrigerants. - Page 13 The unit is equipped with a refrigerant detection system that complies with Annex LL of the IEC 60335-2-40:2018, which position has been checked according to test reported in Annex MM of IEC 60335-2-40:2018. When the refrigerant detection system detects a leak, the following will be initiated by the unit: •...
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Page 14: Refrigerant Leak Detector
2.2.2 Refrigerant leak detector This unit is equipped with a refrigerant leak detector for safety. To be effective, the unit must be electrically powered at all times after installation, other than when servicing. A refrigerant leak detector is installed in the unit between the supply coil and the supply fan(s). This device allows immediate detection of refrigerant leaks in order to start what reported in the above paragraph “Limit to the use –... -
Page 15: Water Flow Rate At The Heat Exchangers
2.2.3 Water flow rate at the heat exchangers It is necessary to ensure that the water flow rate during operation is no higher than 1.5 times and no lower than 0.5 times the nominal flow rate of the unit stated in the Technical Catalogue. In any case, refer to the specific Technical Catalogue for the allowed conditions for water flow in and out of the exchangers. -
Page 16: Warnings Concerning Flammable Refrigerants
2.2.5 Warnings concerning flammable refrigerants Units with mildly flammable refrigerants (A2L), such as R32, shall be installed in accordance with the European standards and regulations and with the local regulations, where applicable. The information below is provided in accordance with standard IEC 60335-2-40:2018 and its annexes and clauses (here in after “Annex”... - Page 17 Prior to beginning work on systems containing flammable refrigerants, safety checks in the area are necessary to ensure that the risk of ignition is minimised. For repair to the refrigerating system, DD.4.3 to DD.4.7 shall be completed prior to conducting work on the system. (Annex DD.4.3) Work procedure Work shall be undertaken under a controlled procedure so as to minimise the risk of a flammable gas or vapour being present while the work is being performed.
- Page 18 (Annex DD.4.8) Ventilated area Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.
- Page 19 (Annex DD.5.2) Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc.
- Page 20 (Annex DD.9) Removal and evacuation When breaking into the refrigerant circuit to make repairs – or for any other purpose – conventional procedures shall be used. However, it is important that best practice is followed since flammability is a consideration. The following procedure shall be adhered to: •...
- Page 21 d) Pump down refrigerant system, if possible. e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system. f) Make sure that cylinder is situated on the scales before recovery takes place. g) Start the recovery machine and operate in accordance with instructions.
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Page 22: Noise
2.3 Noise The starting of the unit, with activation of its components, emits a noise whose intensity varies depending on the operating level. The correct location choice and the correct installation prevent the unit causing annoying noise due to resonances, reflections and vibrations. -
Page 23: Safety Information On The Refrigerant Fluid
2.5 Safety information on the refrigerant fluid This product contains fluorinated greenhouse gases included in the Kyoto protocol. Do not release these gases into the atmosphere. Type of refrigerant: R32. GWP value: 677. Based on "IPCC Fifth Assessment Report". GWP is the global warming potential. The quantity of refrigerant fluid is indicated in the unit’s data label. -
Page 24: Receiving The Product And Storage
RECEIVING THE PRODUCT AND STORAGE 3.1 Reception On receiving the unit, check that it is undamaged, bearing in mind that it left the factory in perfect condition. Report any signs of damage immediately to the transporter and make a note of these on the Delivery Sheet before signing it. -
Page 25: Handling
3.3 Handling Before each unit handling operation, check that the lifting capacity of the machinery used is compatible with the weight of the unit. Handling must be carried out by adequately equipped qualified personnel. In all lifting operations, make sure the unit is firmly secured in order to prevent accidental falls or overturning. - Page 26 For lifting use all the brackets present in the unit. Fig. 3 Lifting with slings To prevent the slings from touching the unit, suitable protective devices must be placed on the upper edges. It is mandatory to use a lifting beam adjusted to the width of the unit in order to ensure lifting stability Translation from original instructions We reserve the right to make changes without any prior notice.
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Page 27: Product Description
PRODUCT DESCRIPTION 4.1 Intended use These units are intended for air cooling / heating, generally used in air conditioning applications These are high efficiency, self-contained air conditioners, for both summer and winter use, that allow attainment of complete thermo-hygrometric air handling and recovery of the heat dispersed for air renewal. They can be used in both commercial and industrial applications that, besides having load variability, can be characterized by high latent loads and need to guarantee optimum conditions for occupants. -
Page 28: Control And Safety Devices
4.3 Control and safety devices The unit is integrally managed by an electronic microprocessor control that, through the various installed temperature and pressure sensors, keeps its operation within the safety limits. All the parameters involved with control of the unit are shown in the “Control Manual” that is an integral part of the documentation of the unit. -
Page 29: Air System
4.7 Air system 4.7.1 Internal air fans Depending on the configurations, there may be only supply fans or also return fans in the units. The fans are radial fans with reverse blades, with external rotor motor directly coupled to the impeller. The radial fans are called "EC", with electronically commutated brushless motor. -
Page 30: Dirty Filter Sensor
4.7.3 Dirty filter sensor The level of air filter clogging is checked by means of a differential pressure switch that measures the pressure drop between upstream and downstream of the filter. The control panel will signal, via an alarm on the display, the need to replace or clean the filter. The machine will continue to work in any case. -
Page 31: Control Panel
4.8 Control panel The unit is fully managed by an electronic system with microprocessor that has a touch screen display as interface. By using the display, you can access all the unit’s functions, such as visualising the operating parameters, setting the parameters, managing and analysing any problems. -
Page 32: Time Band Setup Procedure
4.8.4 Time band setup procedure Access to the screen where the time bands are set up requires entry of a password. On the main mask press the "Menu" icon to access the main menu and then the "Parameters" menu. Within the "Parameters" sub-menu, it is is possible to access the function "ES - Energy saving" to set the parameters of the time schedules. -
Page 33: Installation
INSTALLATION During installation or whenever work must be carried out on the unit, it is essential to strictly follow the instructions in this manual, comply with the directions on the unit and in any case take all necessary precautions. The pressures in the refrigerant circuit and the electrical components can create risky situations during installation and maintenance work. -
Page 34: Installation
The unit must be installed in an area from which any leaking refrigerant cannot flow into buildings or cannot harm persons or damage property. Similarly, should a refrigerant leak occur, the refrigerant must be prevented from flowing into fresh air inlets, doors or similar openings, and it must be prevented from building up under any walking surface and inside trap-doors. -
Page 35: Fitting Of Rain Hoods
5.3.2 Fitting of rain hoods A rain guard can be fitted on the opening for the passage of external air. Protection is achieved with hoods; the number of elements forming the guard depends on the size of the air passage. The guard is supplied in a separate kit for fitting by the installer. -
Page 36: Noise Attenuation
5.3.4 Noise attenuation The units are designed and built paying particular attention to keeping down noise emission during operation. In addition to standard versions, the company offers versions with the compressor compartment coated with sound absorbing material for lower noise emissions. Correct installation for both the place and the components, as shown in the relevant chapter, avoids resonances, reflections and vibrations that can be particularly bothersome. -
Page 37: Hydraulic Connections
5.4 Hydraulic connections If the unit has parts that require a hydraulic connection to be carried out by the installer, it is mandatory to fit a metal mesh filter with mesh size no larger than 1 mm on the inlet pipes. If this is not installed, the warranty is voided immediately. -
Page 38: Condensate Drain Of The External Air Coil
Fig. 8 Syphon for condensate discharge pipe. The pipe draining the condensate must never be connected to waste water drains or run-off water drains, only to rainwater systems to prevent any foul smelling gases from being sucked back. 5.4.3 Condensate drain of the external air coil The condensate collection tray is provided with a male R 1"... -
Page 39: Electrical Connections
5.5 Electrical connections All electrical operations must be carried out by personnel having the necessary legal requirements, and trained and informed on the risks connected with these operations. The sizing and characteristics of the power lines and relevant components must be determined by staff qualified to design electrical systems, following the international and national regulations of the place of installation of the units in conformity with the regulations in force at the time of installation. - Page 40 To fix the power cable, use power cable fixing systems that resist tensile and torsional stresses. The weight of the cables must not be borne by the electrical connection system. The cross-section of the cable and the line protection devices must correspond to those indicated in the wiring diagram.
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Page 41: Aeraulic Connections
5.6 Aeraulic connections The ducting must be suitably sized so as not to generate unforeseen concentrated and/or distributed head losses that can cause drops in the handled air flow rate below the design flow rate. The head losses in the ducting must not exceed the available pressure provided by the fans (for particular applications, consult our Technical Department). -
Page 42: Connection Of The Ducts
If the supply is downward, the panel on the bottom of the unit must be removed Fig. 15 Downward connection 5.6.2 Connection of the ducts Correct installation of the channels should comply with the following recommendations: - the size of the ducting must be at least the size of the supply outlet and suction inlet on the unit. It is preferable to enlarge the ducts near the machine made in accordance with the rules of good practice;... -
Page 43: Commissioning
COMMISSIONING 6.1 Preliminary operations The unit should only be started up by qualified personnel authorised by the manufacturer. All the units are pre-charged with refrigerant gas, so the refrigerant circuit is pressurised. The unit is filled with refrigerant gas, classified as A2L (mildly flammable). Check: - that the electrical connection has been made correctly and that all terminals are properly tightened;... -
Page 44: First Starting
6.2 First starting 6.2.1 Preliminary checks To operate, the unit must have the external OK signal input closed. Refer to the wiring diagram supplied with the unit for connection of the external OK signal input. If it is not necessary for system requirements, the external OK signal input must be short-circuited. For this purpose, a cable is already foreseen and partially connected to the contacts. -
Page 45: Calibration Of Safety Components
6.3 Calibration of safety components Any work on the unit must be carried out by qualified authorised personnel. Incorrect calibration values can cause serious damage to the unit and harm people. The control and safety equipment is calibrated and tested in the factory before the unit is shipped. However, after the unit has been started, the safety devices must be checked (only the high pressure switches). -
Page 46: Alarms And Malfunctions
6.5 Alarms and malfunctions Possible malfunctions will trigger the protective devices and safety devices of the unit before serious faults occur. All the “warnings” and “alarms” are recorded in the memory of the control and displayed on the display of the unit. Before resetting an alarm, the cause that triggered it must be found and eliminated. - Page 47 SYMPTOM LIKELY CAUSE POSSIBLE SOLUTION Check that the high pressure Opening of the valve due to failure of switches are working and, if Presence of oil on the discharge of the protective devices to operate. necessary, replace them. the safety valve. The valve must be replaced.
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Page 48: Temporary Stop
6.6 Temporary stop The shutdown of the unit for a few days is considered as temporary. The unit must be stopped using the display of the control, the external OK signal or via serial if included. During the temporary stop, the unit must be powered correctly. When the temporary stop is carried out in this way, all that needs to be done to restart the unit is to set the control to “ON”. -
Page 49: Maintenance
MAINTENANCE All operations required on the unit for the purpose of maintenance must be carried out by authorised and qualified staff, as described by Annex HH of IEC 60335-2-40:2018, by local legislations and, with respect to europen standards, by EN 378-4 and EN 13133. Take Annex E to standard EN378-4 as main reference. -
Page 50: External Cleaning
7.2 External cleaning The component of the unit that needs most care is the finned pack heat exchanger. It is essential to keep it clean and free of dirt and/or deposits that can hinder or prevent air flow. Regular cleaning of the surface of the coil is essential for the unit to work correctly and also increases the operating life of the exchanger and the unit. -
Page 51: Installation Site Cleanness
7.2.2 Installation site cleanness Keep the place where the unit is installed clean and tidy so that its parts can be reached safely. In particular, avoid the accumulation of leaves and dirt near the unit or the deposit of materials that may give off bad smells or irritant substances that can be put into the room with the fresh air. -
Page 52: Periodic Checks
7.4 Periodic checks Carry out periodic checks to make sure the unit is working correctly: RECOMMENDED OPERATION FREQUENCY Check the operation of all the control and safety equipment as described previously. Monthly Check the tightness of the electrical terminals in the electrical control panel and in the terminal boards of the compressors. -
Page 53: Unscheduled Maintenance
7.5 Unscheduled maintenance After correctly starting-up and carrying out the relevant checks, the units normally do not need any intervention by the customer service in order to check the charge of the refrigerant gas. 7.5.1 Special work With use of the unit, particular situations may occur that require work to be carried out promptly. Any work performed on the unit in the event of an emergency must be carried out in safe conditions and by authorised and qualified staff, as described by Annex HH of IEC 60335-2-40:2018, by local legislations and, with respect to europen standards, by EN 378-4 and EN 13133. - Page 54 DECOMMISSIONING With reference to the European waste management directive, we inform you of the following: - The owner of electrical and electronic equipment (EEE) is obliged not to dispose of it as non-separated municipal waste, and must dispose of it via separate collection through public or private waste collection systems as required by local regulations.
- Page 56 4P645202-1...
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