AERMEC URX CF Selection And Installation Manual

Heat recovery units with refrigeration circuit

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HEAT RECOVERY UNITS WITH REFRIGERATION CIRCUIT

SELECTION AND INSTALLATION MANUAL

URX_CF

0313. 6180417_03

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Page 1 HEAT RECOVERY UNITS WITH REFRIGERATION CIRCUIT SELECTION AND INSTALLATION MANUAL URX_CF 0313. 6180417_03...
Page 3 Index Remarks Description of the units Description of components Accessories Technical data Operational limits Sound data Performance variations cooling and heating Fans available static pressure Fresh air temperature variations on the change of the expelled air temperature Thermal efficiency, Pressure drop air side accessories MBC, SUF Refrigerating circuit Dimensions Accessories Dimensions...
Page 4 • the instructions described in the present order to guarantee better operator safety. manual have not been followed correctly; • Aermec S.p.A. declines all liability for any • unauthorised modifications have been damage caused by the improper use of the made.
Page 5: Description Of The Unit
Heat recovery units with refrigeration circuit - URX_CF - Description of the unit efficient recovery of heat. mal loads, are referred to as Thermal The URX_CF series is the mono- damper solution to the needs of The accurate design of the machine Available Capacity and Refrigerating systems normally used in bars, combines the extremely compact size,...
Page 6: Description Of The Components
Heat recovery units with refrigeration circuit - URX_CF - Description of the components Panels and structure: the structure is made up of 20 mm thick galvanised self-supporting sandwich panels with injected polyurethane insulation ( density of 40 kg/m ). The construction of the casing simpliﬁ...
Page 7 Heat recovery units with refrigeration circuit - URX_CF - Accessories MBC Hot water coil module G4F G4 efficiency filters FCE Free-cooling This is an external module that can be The units can be fitted with two cell- The “free-cooling kit ” includes 2 installed downstream from the motor fan type filters with corrugated septum dampers with related ON/OFF 230V...
Page 8 REFRIGERATING CIRCUIT (COMPRESSOR) Refrigerant R410A R410A R410A R410A R410A Quantity refrigerant [Kg] Consult AERMEC Technical Departiment. Winter mode compressor input power [kW] Summer mode compressor input power [kW] Compressor maximum current input 12,5 11,1 19,7 Caution: the electronic regulators that are (1) Fan power supply: 230 V;...
Page 9 Heat recovery units with refrigeration circuit - URX_CF - ACCESSORIES MBC - Water heating coil Rows Front surfaces 0,13 0,13 0,24 0,24 0,29 Air side pressure drop at nominal flow rate [Pa] Heating capacity [kW] 10,3 16,8 Heating capacity [kW] Water flow rate [l/h] 1475...
Page 10: Operation Limits
Refer to fig. 043 for the operating limits. N.B: Please contact Aermec technical sales office in the event it is necessary to operate the machine outside the limits indicated in the diagram.
Page 11 Heat recovery units with refrigeration circuit - URX_CF - Performance variations cooling and heating The URX_CF series heat recovery unit with refrigerating circuit allow the renewal of Variazione della resa frigorifera Variation of cooling capacity the internal air giving the necessary hourly change in order to obtain the ideal comfort 1,30 conditions.
Page 12 Heat recovery units with refrigeration circuit - URX_CF - Fresh air temperature variations on the change of the external air temperature Summer use The following charts allow to determine the variation of the temperature within the room on the variation of the external conditions.
Page 13 Heat recovery units with refrigeration circuit - URX_CF - Thermal efficiency, Pressure drop air side for accessories MBC, SUF The diagram in fig. 06 allows to determine the coil thermal efficiency of the MBC accessory for each model based on the Td of the inlet water and Td of the inlet water air.
Page 14: Refrigerating Circuit
Heat recovery units with refrigeration circuit - URX_CF - Refrigerating circuit Compressor Condensing coil Evaporating coil Summer supply fan Winter supply fan Liquid separator One way valve Liquid indicator Filter Thermostatic valve Liquid receiver High pressure probe Valvola inversione di ciclo High pressure switch Low pressure switch Solenoid valve...
Page 15 Heat recovery units with refrigeration circuit - URX_CF - Dimensions URX07CF - URX10CF Expulsion of exhaust air or inspection of By-pass for refrigerating circuit External air External air free-cooling Exhaust Supply suction suction Expulsion of exhaust air or Electric inspection of panel refrigerating circuit...
Page 16 Heat recovery units with refrigeration circuit - URX_CF - URX15CF - URX21CF Expulsion of exhaust air or By-pass for inspection of Supply Exhaust External air External air free-cooling refrigerating circuit suction suction 999,6 Expulsion of exhaust air or inspection of refrigerating circuit Electric panel...
Page 17 Heat recovery units with refrigeration circuit - URX_CF - URX33CF Expulsion of exhaust air or inspection of Exhaust By-pass for refrigerating Supply External air External air free-cooling circuit suction suction 1011 Expulsion of exhaust air or inspection of refrigerating circuit Electrical panel Weights and centres of mass...
Page 18 Heat recovery units with refrigeration circuit - URX_CF - Accessories Dimensions SUF - Silencer baffle modules 1. Inspection panel set 2. Lower panel bdampering profile 3. Upper fixing bracket 4. Silencer 5. Baffles fixing bracket 6. Duct accessories connection flange Mod.
Page 19 Heat recovery units with refrigeration circuit - URX_CF - MBC - Water coil modules MBX - Electrical coil modules RBX - Preheating Electrical coil modules - RBX Mod. [mm] URX_CF 07-10 URX_CF 15-21 URX33CF 31,5 31,5 31,5 Selection and installation manual...
Page 20 Heat recovery units with refrigeration circuit - URX_CF - SUF, MBC, MBX and RBX assembly - unscrew totally the screws form the Accessories MBC, MBX, RBX and cal box and unit electrical panel; unit in correspondance of the holes are equipped with: - only for MBX RBX: electrical which couples with accessory flange;...
Page 21 Heat recovery units with refrigeration circuit - URX_CF - Dampers and actuators (included in the free-cooling kit) Mod. [mm] URX_CF 07-10 URX_CF 15-21 URX_CF 33 Circular flanges (FGC accessory) 380 mm Unit accessibility Selection and installation manual...
Page 22: General Safety Requirements
(in highly corrosive for future reference when contacting When the unit is received it is necessary environments, in potentially explosive Aermec S.p.A. to carry out an initial inspection to make atmospheres etc. ) its use is not sure that: Handling permitted.
Page 23 (point 4), partially tighten one screw for each bracket to the unit or to the Installation material not supplied as part of the kit coil or silencer module. N.B.: Aermec recommends to use spring dampers for those units set on the floor. fig.09...
Page 24 • in order to prevent the transmission of vibrations and noise, Aermec S.p.A. sug- gests the use of ducts with a frontal mass higher than 10 kg/m •...
Page 25: Operation
Heat recovery units with refrigeration circuit - URX_CF - FCE free-cooling accessory The assembly of the "free-cooling kit" Assembly of the the free-cooling function while the accessory must be performed by qualified accessory damper with the MEFS servomotor is personnel in accordance with the present open (opposing functions);...
Page 26: Electrical Connections
Heat recovery units with refrigeration circuit - URX_CF - Electrical connections The unit is completely wired in the factory CAUTION! Use the connectors with the earth Once the connections have been and requires the power supply, intercepted symbol to connect the earthing of the made, check that: with inline protections, indicated on the unit and possible accessories to the...
Page 27: Maintenance Of The Unit
REFRIGERANT LOAD SIZES URX_CF Consult AERMEC Technical Departiment Maintenance of the unit CAUTION! knobs; • remove the condensate drain pan; During the maintenance phase, wear •...
Page 28 Heat recovery units with refrigeration circuit - URX_CF - Heat exchanger coil PERIODIC COMPONENT OPERATIONS Filters Check their cleanliness twice a week To maintain an efficient heat exchange Heat exchanger coil Check integrity of pack each year the coils must be cleaned with a jet of Condensate pan Check cleanliness each year compressed air and the circuit (water coil)
Page 29: Diagnosis And Trouble-Shooting
Heat recovery units with refrigeration circuit - URX_CF - Diagnosis and trouble-shooting 1. Insufficient air flow rate • Fans rotation speed • Clean the components too low increase the fan speed • Pressure drop of the distribution system underestimated • Blocked filters •...
Page 30 Heat recovery units with refrigeration circuit - URX_CF - 10. The compressor does not start due • Pressure switch out of order • Check and replace to the intervention of the • Machine completely empty • See point 11) low pressure switch •...
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Page 34 NOTE...
Page 36 Technical data shown in this booklet are not binding. Tel. (+39) 0442 633111 AERMEC S.p.A. shall have the right to introduce at any time whatever Fax (+39) 0442 93730 - (+39) 0442 93566 modifications deemed necessary to the improvement of the product.

AERMEC URX CF Selection And Installation Manual

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