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Translation from original instructions

Packaged Rooftop

33

We reserve the right to make changes without any prior notice.

UATYA

4P645202-1

5 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.

5.1  Dimensions and weight

In order to correctly position the unit, please refer to the dimensional drawing supplied with the order confirmation for 

its size and weight.

5.2  Installation site

The following should be taken into account to establish the best place to install the unit and the relevant connections:

 - size and origin of the aeraulic ducts;
 - size and origin of the hydraulic piping;
 - location of the power supply;
 - accessibility for maintenance or repair operations;
 - load-bearing capacity of the support surface;
 - ventilation of the air-cooled condenser;
 - orientation and exposure to solar radiation. Keep the condensing coil out of direct sunlight as far as possible;
 - direction of prevailing 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  surfaces)  so  as  to  avoid 

overtemperatures during use;

 -

possible reflections, resonances and acoustic interactions with elements outside the unit.

Pay attention to the presence of flues, drains, vents and to the stale air of other systems. Air can be 

sucked from the fresh air damper and through the supply unit in the rooms to be air conditioned.

All the models in the range are designed and built for outdoor installation (terraces, gardens). They must therefore 

not be installed under canopies or near plants (even if these would cover only part of the unit), in order to avoid the 

possibility of air recirculation.

It is obligatory to observe the clearances specified in the dimensional diagram of the unit.

If the unit is installed in particularly windy areas, windbreaks must be installed to prevent 

malfunctioning of the unit.

During the defrost cycle, units in heat pump operation allow water to flow out that freezes with sub-

zero temperatures. Although the unit is installed perfectly horizontal, make slopes in the support 

surface to direct the defrost water into drains, wells or in any case to places where there is no danger 

of accident.

The unit is filled with refrigerant gas, classified as A2L (mildly flammable).

Содержание UATYA-BBAY1

Страница 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...

Страница 2: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 55: ......

Страница 56: ...Copyright 2021 Daikin 4P645202 1 UM_DKN_0001_Rooftop_EN_13 01 2021_rev00...

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