Daikin UATYA-BBAY1 Installation, Use And Maintenance Manual Download Page 1

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Installation, use and

maintenance manual

Rooftop Packaged Unit

R-32 rooftop series – Base,

2-,3- and 4-damper versions

Made-To-Stock models

UATYA-BBAY1

UATYA-BBC2Y1

UATYA-BBC3Y1

Made-To-Order models

BASE

FC2

FC3

FC4

Installation, use and maintenance manual

Rooftop Packaged Unit

English

Summary of Contents for UATYA-BBAY1

Page 1: ...Rooftop Packaged Unit R 32 rooftop series Base 2 3 and 4 damper versions Made To Stock models UATYA BBAY1 UATYA BBC2Y1 UATYA BBC3Y1 Made To Order models BASE FC2 FC3 FC4 Installation use and maintenan...

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Page 3: ...n 15 2 2 5 Warnings concerning flammable refrigerants 16 2 3 Noise 22 2 4 Residual risks 22 2 5 Safety information on the refrigerant fluid 23 2 5 1 Hazards and health consequences 23 3 Receiving the...

Page 4: ...3 Condensate drain of the external air coil 38 5 4 4 Connection to the humidifier 38 5 5 Electrical connections 39 5 6 Aeraulic connections 41 5 6 1 Return and supply ducts 41 5 6 2 Connection of the...

Page 5: ...Translation from original instructions Packaged Rooftop 5 We reserve the right to make changes without any prior notice UATYA 4P645202 1 8 Decommissioning 54...

Page 6: ...ts of the European Machinery Safety Directive The quality level is constantly monitored and therefore our products are synonymous with Safety Quality and Reliability Changes considered necessary for p...

Page 7: ...ectives 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 un...

Page 8: ...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...

Page 9: ...legislations and with respect to europen standards by EN 378 4 and EN 13133 additionally they must have proper knowledge to perform all the activities required throughout the service life of the machi...

Page 10: ...uirements and or national regulations lay down that the discharge of the safety valves must be routed to the outside The conveying must be done with a pipe whose diameter must be at least that of the...

Page 11: ...safety valves if the units are positioned in unprotected places which can easily be reached by unqualified persons suitable protection devices must be installed the user must consult the installation...

Page 12: ...2 Circuit 1 Circuit 2 UATYA25 7 20 7 8 3 24 4 UATYA30 10 29 6 11 3 33 5 UATYA40 12 35 5 13 7 40 6 UATYA50 15 44 4 17 50 4 UATYA60 18 53 3 21 62 UATYA70 18 53 3 21 62 UATYA80 23 68 1 26 9 79 6 UATYA90...

Page 13: ...erant detection system has reset Building fire and smoke systems may override this function If the leak detector detects a leak the above operations will be initiated even if the unit is turned OFF by...

Page 14: ...igerant charge The fans will operate continuously even if time tables are set in order to have always the minimum required airflow In the unlike event that the airflow is not able to reach the minimum...

Page 15: ...al hardness 2 0 6 0 f Langelier index 0 4 0 4 pH 7 5 8 5 Electrical conductivity 10 500 S cm Organic elements Hydrogen carbonate HCO3 70 300 ppm Sulphates SO42 50 ppm Hydrogen carbonate Sulphates HCO3...

Page 16: ...ontinuously operating ignition sources for example open flames an operating gas appliance or an operating electric heater Do not pierce or burn Be aware that refrigerants may not contain an odour Anne...

Page 17: ...e of potentially toxic and flammable atmospheres Ensure that the refrigerant or leak detection equipment being used is suitable for use with the refrigerant applicable to the unit i e non sparking ade...

Page 18: ...rant containing components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant containing components unless the components are constructed...

Page 19: ...or any other adverse environmental effects The check shall also take into account the effects of ageing or continual vibration from sources such as compressors or fans Annex DD 8 Detection of flammab...

Page 20: ...dures In addition to conventional charging procedures the following requirements shall be followed Ensure that contamination of different refrigerants does not occur when using charging equipment Hose...

Page 21: ...t the correct number of cylinders for holding the total system charge are available All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant i e special...

Page 22: ...te to the ON state and vice versa of the unit can be carried out remotely or through the display without having to enter areas at risk Access restriction is part of correct installation to eliminate r...

Page 23: ...In case of contact with the liquid defrost the various part with water remove clothing carefully rinse thoroughly with water Contaminated clothing and shoes should be washed before reuse High vapour c...

Page 24: ...he factory using suitable vehicles with correct locking in order to prevent any possibility of movement whilst in transit by road that may damage it or cause accidents If there is to be trans shipment...

Page 25: ...points Make sure the machinery and lifting ropes are of suitable size and capacity and strictly follow their operating instructions Use only equipment that is in excellent working order Check that th...

Page 26: ...tice UATYA 4P645202 1 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 uppe...

Page 27: ...riability can be characterized by high latent loads and need to guarantee optimum conditions for occupants Their use is recommended within the operating limits indicated in the Technical Catalogue 4 2...

Page 28: ...recovery from expelled air thermodynamic recovery humidification additional heating by means of burner battery with hot water or electric heaters free cooling free heating 4 5 Structure Depending on t...

Page 29: ...rm signalling which includes thermal overload protection overcurrent undervoltage absence of one or more phases and seized rotor The EC fans are not provided with a contactor and are constantly live a...

Page 30: ...he indication for access to the filters Cleaning or replacement is essential to ensure good operation of the unit and the correct air flow rate 4 7 5 Humidifier The units can be equipped with an immer...

Page 31: ...back by one level A click on this icon enables going back to the loop of the previous menu gaining access to it with the active credentials 4 8 1 Switch the unit on and off from the display Use the O...

Page 32: ...ge becomes active as soon as it is selected 4 8 6 Change date and time Select Date and Time in the Configurations menu and access the screen where it is possible to edit the date and time setpoints Se...

Page 33: ...ng winds Do not position the unit in a such way that prevailing winds can cause air recirculation at the condensing coil type of surface Do not position the unit on dark coloured surfaces e g tarred s...

Page 34: ...oning A solid base on which to position the unit must be created This base must be perfectly flat and horizontal Its dimensions must be adequate for those of the unit The slab must be made in a suitab...

Page 35: ...crews provided repeat this operation for all the elements of the guard 5 3 3 Anti vibration mounts In order to reduce vibrations transmitted to the structure it is advisable to install the unit on rub...

Page 36: ...y work done to soundproof the unit does not affect its correct installation or its correct operation That is why it is necessary not to restrict the service spaces and to avoid installing covers that...

Page 37: ...ircuit when it is not being used If a water and glycol mixture is not used the hydraulic system must be emptied whenever it is to remain unused for a long time To make the circuit emptying operations...

Page 38: ...y The condensate drain of the external air coil can be left free Any condensate pipework connected to the unit must be protected from freezing 5 4 4 Connection to the humidifier Where present the humi...

Page 39: ...it voltage number of phases frequency stated on the plate on the unit The standard supply voltage see specific wiring diagram must not fluctuate by more than 10 and the unbalance between phases must a...

Page 40: ...s wrong the relay is open The red led blinking quickly with a short pause togheter with the green led lighted means that the supply voltage is out of the limits the relay is closed The red led blinkin...

Page 41: ...able pressure provided by the fans for particular applications consult our Technical Department The ducts connected to the appliance shall not contain any potential ignition source as defined by IEC 6...

Page 42: ...machine made in accordance with the rules of good practice the ducting must be connected to the unit by interposition of an anti vibration coupling in order to reduce transmission of vibrations from...

Page 43: ...n the compressor crankcases are powered correctly The crankcase heaters are switched on when the main disconnect switch is closed and this must be done at least 12 hours before starting the unit To ch...

Page 44: ...lue Higher values indicate an excessive air flow rate that if it continues can cause the electrical protection devices of the motors to cut in Check that the values measured by the sensors of the cont...

Page 45: ...ical absorption of the unit is close to the data shown in the wiring diagram Considerably different values may be due to the reduced capacity operation of the unit to working conditions very different...

Page 46: ...he auxiliary circuit are undamaged Reset the triggered protective device after eliminating the cause that triggered it The unit does not start the display is off the control is powered correctly The u...

Page 47: ...he valve due to failure of the protective devices to operate Check that the high pressure switches are working and if necessary replace them The valve must be replaced Opening of the valve due to over...

Page 48: ...e control switch disconnect the power supply using the switch general switch of the unit drain the hydraulic system unless it uses glycol water empty and clean the condensation drip tray empty the hum...

Page 49: ...t access moving parts without guards 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 befor...

Page 50: ...or units installed in coastal or industrial areas or in areas where there are aggressive chemicals in the air periodic rinsing with clean water is considerably beneficial and helps counter corrosive e...

Page 51: ...stallation site clean and tidy for correct maintenance of the unit and to keep it in good working order 7 3 1 Cleaning the unit Keep the inside of the electrical control panel and where present the co...

Page 52: ...Monthly Check that the differential water pressure switch or the flow switch where present is working correctly Monthly Check the crankcase heaters of the compressors Monthly Clean the finned coil by...

Page 53: ...e unit on the pipes or on parts of the unit can be a sign of gas leaks Repair the leakage point and restore the charge of refrigerant gas In the case of small oil leaks clean the dirty parts with abso...

Page 54: ...s as required by local regulations The owner can return EEE to the dealer at the end of its life when purchasing equivalent new equipment This EEE may contain hazardous substances such as refrigerant...

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Daikin UATYA-BBAY1, Installation, Use And Maintenance Manual

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