Swegon BlueBox Omega Sky Installation, Use And Maintenance Manual Download Page 38

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Translation from original instructions

6.4.2 Recovery hydraulic circuit

Reference hydraulic diagram for connecting the unit to the recovery circuit.

Fig. 13 Recommended hydraulic circuit

Heat recuperator

Water filter

Thermometer

Motor-driven pump

Flow switch (recommended)

Flexible coupling

System filling unit

Water pressure gauge

Valve

Safety valve

SBS

Storage tank with internal heat exchanger

Air valve

Expansion vessel

Check valve

It is essential for the water to come in at the connection indicated in the dimensional diagram and with the

relevant label on the unit.

Failing this, there would be a decline in the operating efficiency of the heat exchanger and triggering of the protective devi

ces with stopping of the recovery function.

The hydraulic circuit must be made so as to guarantee the water flow rate to the heat exchanger for correct operation within

the set limits (see the Technical Catalogue).

Summary of Contents for BlueBox Omega Sky

Page 1: ...Omega Sky EN 13 05 2020 Installation use and maintenance manual...

Page 2: ...n Machi nery Safety Directive The quality level is constantly monitored and therefore our products are synonymous with Safety Quality and Reliability Changes considered necessary for product improveme...

Page 3: ...hydraulic circuit 16 2 2 8 Hydraulic connection to the heat recuperator DC option 18 2 2 9 Refrigerant leak detector 19 2 3 Noise 20 2 4 Residual risks 20 2 5 Safety information on the refrigerant fl...

Page 4: ...33 6 3 3 Anti vibration mounts 33 6 3 4 Noise attenuation 34 6 3 5 Minimum distances 34 6 4 Hydraulic connections 35 6 4 0 User hydraulic circuit 36 6 4 1 Source hydraulic circuit 37 6 4 2 Recovery hy...

Page 5: ...rce circuit 55 7 2 First starting 56 7 2 1 Hydraulic tests 56 7 2 2 Functional tests 57 7 2 3 Unit with remote exchanger 57 7 3 Calibration of safety components 58 7 4 Checks during operation 59 7 4 1...

Page 6: ...eclaration 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...

Page 7: ...wn 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...

Page 8: ...Commission Re gulation EC No 517 2014 The internal danger zone can be accessed by removing the protective devices and entering the unit On no account must unqualified personnel be allowed to enter the...

Page 9: ...ulations provided for by law and must therefore be disposed of as indicated above Particular care should be taken during maintenance operations in order to reduce refrigerant leaks as much as possible...

Page 10: ...immediate vicinity be careful to avoid touching any components of the unit without suitable protection do not work in the discharge trajectory of the safety valves if the units are positioned in unpro...

Page 11: ...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 SO42 1 Chlorides...

Page 12: ...temperature C unless specified this is 2 5 C Water density 1000 kg p Specific heat of water 4 186 kJ kg C Fm Q factor experimental factor different from 1 for some types of unit K1 Experimental multi...

Page 13: ...s provided for the flow switch in the wiring diagram of the unit Use a 2 x 1 mm cable or at most a 2 x 1 5 mm cable with diameter between 6 and 9 mm suitable for installation Lock the cable in place w...

Page 14: ...nsional diagram and with the relevant plate on the unit On OH version units connect the flow switch to the outlet of the source side exchanger indicated in the dimensional diagram and with the relevan...

Page 15: ...56 Propylene glycol 15 25 33 39 44 48 51 54 57 If ambient temperatures are expected to be lower than the freezing point of water it is essential to use an ti freeze mixtures in the above mentioned pe...

Page 16: ...ng three way valve that will ensure an incoming water temperature within the operating limits stated in the Technical Catalogue must be installed for correct operation of the unit Fig 1 3 way valve in...

Page 17: ...ies a three way modulating valve with way B closed or to be clo sed with a blind flange to be used as two way valve If the signal for controlling the valve is used connect the servo control as shown i...

Page 18: ...ure has reached the required value If an anomaly occurs on the hydraulic heat recovery circuit the controller will restart the condenser It is essential for the water to come in at the connection indi...

Page 19: ...ts The alarm contact opens for 5 seconds any time power is cut out and then restored to the sensor Set a suitable delay in the warning message Up to 3 minutes are required for the sensor to complete t...

Page 20: ...ot reasonably be eliminated or sufficiently reduced through design The presence of an operator is not required for normal operation of the unit The change from the OFF state to the ON state and vice v...

Page 21: ...ith water Contaminated clothing and shoes should be washed before reuse High vapour concentrations can cause headaches dizziness drowsiness and nausea and may lead to unconsciousness and cardiac arrhy...

Page 22: ...in which it is carried out 3 2 Transport The unit is sent from the factory using suitable vehicles with correct locking in order to prevent any possibility of movement whilst in transit by road that m...

Page 23: ...d prepared for the unit During unloading and positioning of the unit great care must be taken to prevent sudden or violent manoeuvres and the components of the unit must not be used as lifting points...

Page 24: ...t allowed Upon receipt they must be put in locations protected from weather agents Since the remote condensing unit if present is designed to be installed outdoors it can withstand outdoor atmospheric...

Page 25: ...an be put on the market in any country More specifically they are allowed to be put on the market in member countries of the European Union hereinafter EU Putting the units on the market in the EU ent...

Page 26: ...quired by Regulation 2013 813 2 Where provided for by Regulation 2013 811 applies to heat pumps with Pdesign 70kW 4 1 5 Efficiency parameters required for conformity To avoid ambiguity this chapter id...

Page 27: ...temperature LWT cooling C Conformity Notes 1 Comfort cooling only 18 SEER sc LT 1 2 Comfort cooling only 18 SEER sc MT 3 Process cooling only 2 LWT 12 SEPR HT 4 Process cooling only 12 none 5 Process...

Page 28: ...hin the operating limits indicated in the Technical Catalogue Use outside the operating limits stated in the Technical Catalogue will cause the unit to stop 5 2 Unintended use The unit must not be use...

Page 29: ...aulic circuit in side a heat exchanger evaporator and reject the heat through another water heat exchanger condenser on a source circuit This happens in units intended for operation in cooling mode In...

Page 30: ...instructions is the main screen that is accessed from any other screen by pressing repea tedly on the button ESC 5 7 1 Switching the unit on off Press for more than 2 seconds the button with 5 7 2 Cha...

Page 31: ...sing the button ENTER Pressing twice on the button ESC returns to the main screen For all the other functions refer to the control manual that is an integral part of the documentation of the unit 5 8...

Page 32: ...ired for this purpose please consult the documentation As for the installation of the remote air condenser please also take into consideration positioning and exposure to solar radiation of the air co...

Page 33: ...te condenser To position the remote condenser see the appropriate manual 6 3 3 Anti vibration mounts In order to reduce vibrations transmitted to the structure it is advisable to install the unit on r...

Page 34: ...tion to keeping down noise emission during operation In addition to the standard versions there are LN Low Noise versions for which further devices are used for lower noise emission Correct installati...

Page 35: ...s of the hydraulic circuit to allow the non condensable gases to be bled off Expansion vessel and automatic charging valve for maintaining system pressure and to compensate thermal expansion Drain val...

Page 36: ...ated in the dimensional diagram and with the relevant label on the unit If it does not there would be a risk of the evaporator being frozen since the antifreeze probe control would be thwarted The hyd...

Page 37: ...m filling unit MA Water pressure gauge RB Valve SA Safety valve SF Air valve VE Expansion vessel VR Check valve It is essential for the water to come in at the connection indicated in the dimensional...

Page 38: ...essure gauge RB Valve SA Safety valve SBS Storage tank with internal heat exchanger SF Air valve VE Expansion vessel VR Check valve It is essential for the water to come in at the connection indicated...

Page 39: ...aporator E will be connected to the user system U and the con denser C will be connected to the source system S In heating mode the condenser C will be connected to the user system U and the evaporato...

Page 40: ...the unit is supplied without the components necessary for FC NG operation 6 5 1 Unit with only FC NG management Hydraulically the unit is supplied in the basic version In addition to the connections o...

Page 41: ...sel VR Check valve It is essential for the water to come in at the connection indicated in the dimensional diagram and with the relevant plate on the unit It is just as important to connect the 3 way...

Page 42: ...A reference hydraulic diagram is shown below The basic unit and the FC NG Kit module are shown inside the broken line areas Fig 17 Recommended hydraulic circuit 02 Condenser 03 Evaporator 04 Decouplin...

Page 43: ...itions If this is not done there will be a risk of refrigerant returning to the liquid state at the compressor inlet with the danger of it breaking Operation with a variable water flow rate to the eva...

Page 44: ...e to the PE terminal on the earth bar situated in the electrical control panel Make sure the power supply voltage corresponds to the rated data of the unit voltage number of phases frequency stated on...

Page 45: ...which are powered by external sources must be sui tably protected against overcurrent and earth faults The circuit of the potential free contacts inside the electrical control panel is made using oran...

Page 46: ...he source side manifold of the units It is the installer s job to correctly position and connect the sensors supplied with the unit and other components necessary for correct operation of the system T...

Page 47: ...f LC units with just one refrigerant circuit combined with remote dual circuit condensers it is necessary to make a suitable manifold to join the two gas connections and the two liquid connections 6 8...

Page 48: ...Liquid mm 43 1 1 76 54 76 54 76 54 50 1 1 76 54 76 54 76 54 58 1 1 76 54 89 54 89 54 66 1 1 89 67 89 67 89 67 70 1 1 89 67 89 67 89 67 79 1 1 89 67 89 67 89 67 63 2 1 2 67 42 67 42 67 42 72 2 1 2 67 4...

Page 49: ...ns of the delivery line G make a slope of at least 1 to facilitate oil return to the compressor install a non return valve near the condenser inlet in order to prevent liquid refrigerant from returnin...

Page 50: ...diately before starting to make the vacuum insert the filtering cartridge in the filter body present in the liquid line This cartridge is supplied with the unit and located in the electrical control p...

Page 51: ...most be 10 of the total oil charge present in the refrigerant circuit of the unit The amount of oil put in the refrigerant circuit at the factory is shown in Technical Catalogue for the unit Alternati...

Page 52: ...nt gas so the refrigerant circuit is pressurised Check that the electrical connection has been made correctly and that all terminals are properly tightened that the voltage on the RST terminals is 400...

Page 53: ...opriate capacity for the volume of the system s water 7 1 1 Checking the pre charge of the expansion vessel The values of the pre charge pressure and the maximum pressure at which it can operate are s...

Page 54: ...e charge pressure of the expansion vessel barg pVS calibration pressure of the safety valve barg If the actual volume of the system is higher than this maximum value an additional expansion vessel of...

Page 55: ...een bled to remove any remaining air by filling it gradually and opening the bleed de vices on top 7 1 5 Preliminary operations for the FC NG source circuit In addition to the previous general checks...

Page 56: ...nel of the unit make sure there is water circulation in the source system with the starting of the first compressor Check the pumps are rotating in the correct direction Start the unit by acting on th...

Page 57: ...the register the type of refrigerant the date and type of work done routine maintenance or repair description of the work with any parts replaced measures implemented the operator who carried out the...

Page 58: ...arted the safety devices must be checked only the high and low pressure switches The checks must be carried out as described in the Periodic checks chapter Values for cooling and HPW versions only Con...

Page 59: ...orking correctly lower values indicate that the water flow rate through the unit is too high In this case the water flow rate through the system must be reduced by acting on the control switch if any...

Page 60: ...t is indicated in the checks described above for FC NG units also check without free cooling active check that beyond a reading error of a few tenths of a degree of the respective probes the water tem...

Page 61: ...he cause that trigge red it The unit does not start the display is off the control is powered correctly The unit is switched off from the di splay and the display is disconnected or not working Restor...

Page 62: ...LE SOLUTION Presence of oil on the discharge of the safety valve Opening of the valve due to failure of the protective devices to operate Check that the high pressure switches are working and if neces...

Page 63: ...it If in the previous conditions the circulation pump is not managed by the control the pump must always be kept running When the temporary stop is carried out in this way all that needs to be done t...

Page 64: ...nutes 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 sup ply to the unit has been turned off Wor...

Page 65: ...ternal cleaning It is essential to keep the installation 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 ele...

Page 66: ...Monthly Check that the differential water pressure switch or the flow switch where present is working cor rectly Monthly Check the crankcase heaters of the compressors Monthly Clean the metal filters...

Page 67: ...store the charge of refrigerant gas In the case of small oil leaks clean the dirty parts with absorbent cloths otherwise recover the leaked oil with absorbent sheets In any case the material used must...

Page 68: ...ocal 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 gases lubricating...

Page 69: ...69 We reserve the right to make changes without any prior notice Translation from original instructions Page intentionally blank...

Page 70: ...70 We reserve the right to make changes without any prior notice Translation from original instructions Page intentionally blank...

Page 71: ...71 We reserve the right to make changes without any prior notice Translation from original instructions Page intentionally blank...

Page 72: ...UM 0000 Omega Sky EN 13 05 2020 rev04...

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