Daikin UATYA-BFC2Y1 User Manual Download

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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-BFC2Y1

UATYA-BFC3Y1

Made-To-Order models

BASE

FC2

FC3

RS4

Installation, use and maintenance manual

Rooftop Packaged Unit

English

Summary of Contents for UATYA-BFC2Y1

Page 1: ...Rooftop Packaged Unit R 32 rooftop series Base 2 3 and 4 damper versions Made To Stock models UATYA BBAY1 UATYA BFC2Y1 UATYA BFC3Y1 Made To Order models BASE FC2 FC3 RS4 Installation use and maintenan...

Page 2: ......

Page 3: ...composition 17 2 2 5 Warnings concerning flammable refrigerants 18 2 3 Noise 24 2 4 Residual risks 24 2 5 Safety information on the refrigerant fluid 25 2 5 1 Hazards and health consequences 25 3 Rece...

Page 4: ...41 5 6 2 Connection of the ducts 45 6 Options and accessories 46 6 1 Rainproof hood 46 6 1 1 Installation 46 6 2 Anti vibration mounts 47 6 2 1 Rubber anti vibration mounts 47 6 3 Air filters 48 6 3 1...

Page 5: ...tests 69 7 3 Calibration of safety components 70 7 4 Checks during operation 70 7 5 Alarms and malfunctions 71 7 5 1 General troubleshooting 71 7 6 Temporary stop 73 7 7 Stop for long periods of time...

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: ...335 2 40 2018 by local 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 se...

Page 10: ...rcuits supplied from external sources made with orange cable can remain live even after the power supply to the unit has been turned off Work on the unit only if there is sufficient lighting for the t...

Page 11: ...fined in standard EN378 2 According to the definition given in standard EN378 1 the site of installation of these units is defined as category III i e no restriction applies as to the amount of refrig...

Page 12: ...s chains watches etc which can get caught in the moving parts of the unit always use tools and protective equipment in excellent condition The compressors and delivery gas pipes are at high temperatur...

Page 13: ...proximation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres Any operator gaining access to the unit must be authoris...

Page 14: ...min kg m2 kg m2 Circuit 1 Circuit 2 Circuit 1 Circuit 2 UATYA25 6 0 17 8 7 3 21 6 UATYA30 11 5 34 1 12 8 37 9 UATYA40 12 4 36 7 13 7 40 6 UATYA50 15 0 44 4 17 0 50 4 UATYA60 18 0 53 3 21 0 62 0 UATYA7...

Page 15: ...e 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 button by BMS or by digital input In additio...

Page 16: ...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 17: ...Electrical conductivity 10 500 S cm Organic elements Hydrogen carbonate HCO3 70 300 ppm Sulphates SO42 50 ppm Hydrogen carbonate Sulphates HCO3 SO42 1 Chlorides Cl 50 ppm Nitrates NO3 50 ppm Hydrogen...

Page 18: ...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 19: ...with the refrigerant applicable to the unit i e non sparking adequately sealed or intrinsically safe Annex DD 4 6 Presence of fire extinguisher If any hot work is to be conducted on the unit requiring...

Page 20: ...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 21: ...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 22: ...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 23: ...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 24: ...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 25: ...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 26: ...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 27: ...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 28: ...nsure lifting stability 3 4 Storage The unit is filled with refrigerant gas classified as A2L mildly flammable Units must be stocked in compliance with the local directives The unit must be placed on...

Page 29: ...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 30: ...ecovery from exhausted air thermodynamic recovery humidification supplementary heating by hot air generator hot water coil or electric heaters free cooling free heating 4 5 Structure Depending on the...

Page 31: ...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 32: ...ovided or the Green arrow pointing left icon Menu pressing of this icon on the Home page gives access to the Menu screen If this icon is pressed on any other screen the system moves back by one level...

Page 33: ...nu it will be possible to select the desired language among the available ones If the language you are looking for is not in the screen use the arrows to find it The selected language becomes active a...

Page 34: ...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 35: ...al positioning 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...

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: ...es to prevent freezing of the water inside the hydraulic circuit 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 unuse...

Page 38: ...y H 80 mm H H 2 Fig 6 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 a...

Page 39: ...e than 10 and the unbalance between phases must always be less than 2 If this does not occur contact our technical department to choose suitable protection devices The standard supply voltage see spec...

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: ...hnical Department The ducts connected to the appliance shall not contain any potential ignition source as defined by IEC 60335 2 40 2018 5 6 1 Return and supply ducts The return and delivery ducts may...

Page 42: ...machine bottom is set up at the factory as the return damper Where necessary switching from the return damper to the outside air damper and vice versa can be performed directly in the field thanks to...

Page 43: ...wiring diagram supplied with the unit Fig 16 Exchange of control signal connection 2 Before putting the duct in place unscrew the cable gland on the right hand side damper to remove the probe on the...

Page 44: ...d signal cables refer to the wiring diagram of the unit 2 Unscrew the bolts either one or two depending on the servo control model to loosen the U shaped hook and take the actuator out of the pin in t...

Page 45: ...he 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 the unit to the ducting always sea...

Page 46: ...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...

Page 47: ...be fixed on before positioning the unit on the ground To install the anti vibration mounts see the instructions attached to the accessory When fixing the anti vibration mounts the unit should be lift...

Page 48: ...f the filter holder rail B The levers must be released for filter extraction A B Fig 25 Filter locking system The filter locking system is required when one single filtration stage flat filters needs...

Page 49: ...ification of the locking system requires that the fixed portion of the system is displaced from position C to position D C D Fig 26 Modification of filter locking system Fig 27 Modification with filte...

Page 50: ...alled Filter type Pressure switch calibration Pa G4 EN779 2012 ISO Coarse 75 EN ISO 16890 200 F5 EN779 2012 ePM10 50 EN ISO 16890 250 G4 F6 EN779 2012 ISO Coarse 75 ePM10 70 EN ISO 16890 250 G4 F7 EN7...

Page 51: ...ded together with the probe and to the wiring diagram of the unit for installation and commissioning The duct probe is supplied with the options below temperature humidity probe to manage dehumidifica...

Page 52: ...esult measurement errors due to the electromagnetic field Refer to the instructions provided together with the probe and to the wiring diagram of the unit for installation and commissioning 6 5 4 Duct...

Page 53: ...line The installer is responsible for detector installation and wiring Fig 32 Fire detector Refer to the instructions provided together with the detector and to the wiring diagram of the unit for inst...

Page 54: ...arked by the symbol P using plastic tubes with a diameter of at least 6 mm See picture P P Fig 35 Details in differential air pressure switch Firmly secure the tubes to the transducer connection in or...

Page 55: ...er that needs to be installed in the field The humidifier must be anchored to the supplied sheet metal using the existing mounting holes Fig 36 Panel with pre cut holes Fig 37 Installation of humidifi...

Page 56: ...limit values listed in the table If the water conductivity is outside the range specified in the table the cylinder type must be changed Description Substance UM Limits Min Max Hydrogen ion activity...

Page 57: ...s started An extended period of time up to a few hours is required which depends significantly on the conductivity of feed water before nominal production is achieved 6 8 6 Maintenance Periodic checks...

Page 58: ...max the first 300 hours of operation inspect that the equipment works correctly check for significant water leaks and monitor the overall condition of the enclosure Check for arcing or sparks forming...

Page 59: ...he control and setup parameters of the unit 6 9 1 Installation In units requiring a hot air generator this is normally installed at the factory The connections to the gas network the connection of the...

Page 60: ...alve has a small surface For correct maintenance the connection to the hot air generator must be implemented using an o ring gasket Do not put threaded fittings on the gas fitting directly The figure...

Page 61: ...any case 6 9 1 3 Conversion from natural gas to other gas types As standard the equipment is delivered set up for natural gas G20 The equipment is supplied as standard with one kit for conversion to L...

Page 62: ...chment for condensate drainage in the low left hand side of the unit The following materials should be used for the steam trap aluminium stainless steel silicone or Viton or EPDM this applies to hot p...

Page 63: ...ose the gas valves ask for the help of qualified staff The following checks must be performed before switching the generator on check that the gas supplied from the network matches the gas type for wh...

Page 64: ...d it takes approx 15 minutes after which examine combustion and measure performances check that the safety thermostat Tso causes the burner to get de ignited 6 9 3 1 Setting the bypass damper in the g...

Page 65: ...pressure into the gas valve 7 Check that the flame control equipment is in good working order 8 Check the safety thermostat s 9 Check the ionising current The operations described in items 1 2 3 4 an...

Page 66: ...eplaced 6 9 4 5 Inspection and cleaning of condensate drip syphon Clean the syphon once a year and check the condition of the connections Make sure that no traces of metal residues exist If metal resi...

Page 67: ...lug the serial connection of the thermostats back in and then remove the blockage 6 9 4 9 Inspection of ionising current This inspection can be performed directly from the I O menu of the LCD display...

Page 68: ...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 check th...

Page 69: ...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 70: ...he 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 from the nominal on...

Page 71: ...CAUSE POSSIBLE SOLUTION The unit does not start the display is off No mains voltage Check that the main disconnect switch is in the ON position Check for voltage in the power supply line No voltage to...

Page 72: ...ontrol of the pump partially close the shut off device on the delivery side of the unit until the nominal flow rate is restored Presence of air in the system Check that the air valves are not shut off...

Page 73: ...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 74: ...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 75: ...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 76: ...stallation site clean and tidy for correct maintenance of the unit and to keep it in good working order 8 3 1 Cleaning the unit Keep the inside of the electrical control panel and where present the co...

Page 77: ...nit also has metal filters clean them with compressed air blown in the opposite direction to that of the air flow during operation Use a jet of water if they are completely clogged Monthly Clean the a...

Page 78: ...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 79: ...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-BFC2Y1, Instructions For Installation, Use And Maintenance Manual

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