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URHE_CF

1. AERMEC air conditioning 35040 Bevilacqua Vr Italy Via Roma 996 Tel 39 0442 633111 Fax 39 0442 93730 39 0442 93566 AERMEC COMPANY QUALITY SYSTEM 4 carta reciclata Bn Ww recycled paper A papier recycl ceret recycled papier Technical data shown in this booklet not binding AERMEC S p A shall have the right to introduce at any time whatever modifications deemed necessary to the improvement of the product
2. Mod mm URHE CF URHE33CF 10 15 25 URHE 10 15 25 1 2 684 846 MBCX 1 2 3 359 359 gt 574 574 12 5 12 5 290 287 339 423 12 5 12 5 718 880 5 59 59 16 16 Selection installation use and maintenance manual m ES N MSS MBCH MBCX assembly High efficiency heat recovery unit with cooling circuit URHE CF Accessories MBCH and MSS are equipped with supporting brackets M6 screws to draw close the accessory to unit for MBCX only electrical box put out side accessory for MBCH only electrical cables for connection between three way valve servocontrol 230V ON OFF running and electrical box and between electri cal box and unit electrical panel for MBCX only electrical cables for connection between coil and electrical box and between electrical box and unit electrical panel electrical cables for coil electrical supply and protec tion differential magnetic switch are not supplied For accessories installation on the cei ling and their connection to the unit please refer to the following instruc tions collocate the support brackets on the wall following the instructions at page 24 draw close to the accessory MBCH MBCX
3. Inlet air temperature variation 10 5 Outside air temperature C eyConditions exhaust air 20 50 RH Selection installation use and maintenance manual 12 air conditioning High efficiency heat recovery unit with cooling circuit URHE CF Heating efficiencies and accessories pressure drops BCH MSS The diagram in fig 06 allows to determine for each model according to the water temperature and otside air temperature variation the corrective factor to multiply for the nominal capacity value are present in the technical data table Fig 07 illustrates the pressure drops Pa on the air side based on the flow rate for the MBCH and MSS accessories Fig 08 illustrates the pressure drops kPa water side of the MBCH accessory coil Note The pressure drops illustrated in the diagram also include those of the three way valve Selection installation use and maintenance manual Corrective coefficient Pressure drop on air side Pressure drop on water side 50 fig 06 LA T IET TS E d rr LLLI ELI LI L EN im EE BEEN EF um dE BEEN EN _ L _ L L L L L A EPA L L E B E L
4. disconnect the pan from the condensate drain pipes disassemble the pan supporting brackets e clean the pan replace all parts in reverse order In order to access the condensate drain pan on the coil module detach the module from the unit and disassemble it Selection installation use and maintenance manual 28 compressor do not compress air within the compressor When using 407 gas bottles it is recommended to take care of the maximum number of drawings permitted in order to guarantee the correct ratio of components of the R407C gas Refrigerant charge For data relared to refrigerant gas quantity R410A to charge please refer to the identification plate on the unit Heat recovery unit The heat recovery unit can be cleaned with a jet of compressed air or cold water To disassemble the heat recovery unit remove the condensate drain pan if the unit is placed in the ceiling remove the heat recovery unit supporting brackets clean the heat recovery unit replace all parts in reverse order Fans motor assembly The fans motor assembly needs to be checked to see how clean the rotor is whether there is corrosion or damage and whether there are abnormal noises If necessary disassemble the motor fan assembly as follows remove all inspection panels disconnect the power supply cable unscrew the four screws that hold each of the motor fan assemblies to
5. E a i pur E m m i E i m m m E E psp e er spe epe e pe up pe esser s p gos RRR ser p E Es ap TE EE D D EE E E RE S RE EDS EE GER P D RE ELE LEE Ae eee SESS RAR RRR APRS sn T PT TTT 40 He He 0 80 0 85 0 90 0 95 1 00 1 05 1 10 1 15 1 20 1 25 N N p lt n gt c E e sb N N 05 e n gt 6 65 gt e luum eS Effective flow Nominal flow fig 05 Selection installation use and maintenance manual 11 High efficiency heat recovery unit with cooling circuit URHE 9 air conditioning Fresh air temperature variations on the change of the external air temperature The following charts allow to determine the variation of the temperature within the room on the variation of the external conditions The variability of the air flows is that allowed to guarantee that the refrigerating circuit operates correctly Summer operation Note The following diagrams are representative for all sizes but without accessories Inlet air tamnearature variation 9f 34 32 30 Outside air temperature C Conditions exhaust air 26 50 RH Winter operation 15
6. Filter drier blocked bubbles in the flow indicator and liquid pipe colder at the filter drier outlet The manifold feed pipes are blocked or oil has accumulated in the coil not all of the evaporator circuits are working Check for leaks and eliminate them roofping up with refrigerant Reduce the overheating of the thermostatic expansion valve turn the valve stem and check the suction pressure Change the valve or free the control pipe Change the filter drier Remove the obstruction clean or change the evaporator 17 Compressor too hot 18 Compressor to cold and noisy Thermostatic expansion valve over closed excessive overheating of the evaporator discharge gas Expansion valve over open the system works with the overheating to low return of liquid to the compressor e Thermostatic valve out of order the stem or the seat of the expansion valve is corroded Pressure inlet pipe blocked Foreign objects between the stem and the seat of the thermostatic valve abnormal function of the thermostatic valve Selection installation use and maintenance manual 31 Reduce the overheating of the thermostatic valve Measure and reset the overheating by closing the valve Replace the valve or free the pressure inlet pipe Clean the stem and the holes of the thermostatic valve
7. URHEmmaaXXXXX URHE CF XXXX de recageratonur XX o6 XX kW LS Abseron rms High efficiency heat recovery unit with cooling URHE om air conditioning for the components three way valves Minimum clearances condensate drainage traps etc without which the correct functioning of the unit can not be guaranteed In particular e a space of at least 200 mm must be available for the trap in correspondence with the condensate drain fig 11 Ceiling Positioning of the supporting brackets The unit must be positioned on a horizontal surface to avoid e the damage of the motor fan Ceiling Ceiling or placed on the ground assemblies caused by weight imbalance e the incorrect operation of the condensate drain The unit and the coil and silencer module are equipped with L Fins BARS M6 supporting brackets for horizontal installation The unit can be fixed by means of fins bars by steel M6 of suitable length blo cked through nuts and washers to sup port brackets assembled to unit it must be used one bar for each bracket n 6 bars in all It is advisable to use fins bars with resistancy class at least 4 6 In alternative can be used tiranti with equal or higher mechanical resistency FINS BARS M6 If they are used fins bars with hifh resi stancy class 8 8 at least it is possible to use n 4 fins ba
8. E m E LATI 70 60 AL Anon 454076 H ES 5 0 5 10 15 20 25 Outside air temperature fig 07 45 40 MBCH 25 MBCH 33 35 MSS 1 MSS 2 30 25 20 551 10 Z kPa 70 500 1000 1500 2000 Air flow m h 2500 3000 3500 4000 fig 08 60 50 40 30 MBCH 1 MBCH 2 13 500 1000 1500 Water flow l h 2000 2500 AERMEC 5 High efficiency heat recovery unit with cooling circuit URHE CF air conditioning Refrigerating circuit summer operation EXHAUST FAN BFE FRESH AIR FAN BC KEY CP Compressor BC Condensing coil BE Evaporating coil VM Supply fan F Filter RL Liquid receiver PA High pressure probe VIC Inversion valve AP High pressure switch BP Low pressure switch VS Safety valve Selection installation use and maintenance manual 14 AERMEC 5 High efficiency heat recovery unit with cooling circuit URHE_CF air conditioning Refrigerating circuit winter operation EXHAUST FAN BC FRESH AIR FAN KEY Compressor BC Condensing coil BE Evaporating coil VM Supply fan F Filter RL Liquid receiver PA High pressure probe VIC Inversion valve AP High
9. automatic compressor shutdown Check why the protection cut in compressor automatic shutdown 009900000900000000000000990000090000000090000099000090000009000090000009000000090000000000000000000000000000009000000000000000000000000000000009000000000000000000000900000000000000000000090000000000000000000000000000000000000000000000000000000000000000000000099 8 The compressor starts and then sroofs Defective compressor remote control switch Check and if necessary replace it Defective compressor Check and if necessary replace it 000000000000000000000090000090000000000000000000000000000000900000090000000000000000000000000000000000000000000000900000000000000000000000000000000000009000000000000000000000000000000000000000000000000000000000000000000000000000000000009000000000000090909009 9 The compressor does not start due to the intervention of the high pressure switch e Pressure switch out or order Excessive refrigerant Presence of incondensable gas in the refrigerating circuit The condensate coil is not sufficiently covered in air Blocked refrigerant filter Check and replace Discharge excess gas Refill the circuit after having discharged and placed in vacuum See point 1 Check and replace Selection installation use and maintenance manual 30 AERMEC air conditioning 10 The compressor does not start due to the intervention of the low pressure switch
10. air conditioning CONDENSATE DISCHARGE 1 J UNI 338 FILTER ACCESSIBILITY FILTER ACCESSIBILITY CONDENSATE DISCHARGE 1 UNI 338 ROOM AIR OUTSIDE AIR SUCTION BY PASS FOR FREE COOLING SUCTION INSPECTION REFRIGERANT ELECTRICAL INSPECTION CIRCUIT p Ug pP UG 1964 2309 URHESSCF 410 1365 1145 4 TENRA x Gx 18 Selection installation use and maintenance manual High efficiency heat recovery unit with cooling circuit URHE air conditioning Accessories Dimensions L L Mod mm URHE CF URHE33CF 10 15 25 MSS 1 MSS 2 A 684 846 5 B 684 684 C 574 574 D 500 500 E 59 59 F 59 59 G 16 16 H 718 880 5 12 5 12 5 1 342 432 5 1 M 287 287 N 624 624 BIT Base for floor installation J 57 o O O_O O O Mod mm URHE25CF 10 15 BIT 1 BIT 2 BIT 3 A 1490 5 1978 2303 i B 1490 5 1490 5 1815 5 120 120 120 Selection installation use and maintenance manual 19 AERMEC High efficiency heat recovery unit with cooling circuit URHE CF air conditioning
11. e the items must be protected against bad weather during transport Checks at material receipt When the unit is received it is necessary to carry out an initial inspection to make sure that e all parts are present Selection installation use and maintenance manual 23 e the unit and accessories are not damaged If there are signs of damage it is necessary to specify it on the carriage note The necessary controls are the following e integrity of the finned coil manifolds and condensate trays e water connections that these are protected with the rubber plugs If they are not provide suitable closure devices integrity of the panels e integrity of the electrical panel and electrical electronic parts Installation It is recommended to carefully follow the indications in the sections below when installing the equipment The sections are in chronological order in order to make each phase of the installation easier The necessary technical space must be verified before installation fig 08 for the arrangement of the supply and exhaust ducts as well as those for the free cooling e for the dampers with free cooling function e for the passage of the power supply cables AERMEC 7 Bevilacqua Verona URHE_CFmmaaXXXXX COLLO PACKAGE MONOBLOCCO PESO LORDO GROSS WEIGHT POIDS BRUT BRUTTOWEIGHT KG XXX CLIENTE Aermec S p A A RM EC Bevilacqua Verona LP XXXXXXX
12. nominal conditions Water flow rate Water side pressure drop nominal conditions Water coil manifolds diameter Electric heating coil Power supply Heating capacity Air side pressure drop at nominal flow rate Stages Electric absorbed current 1 Inlet outlet water temperature 70 60 Compressor running Operating conditions return air 20 C 50 external air 2 C 80 High efficiency heat recovery unit with cooling circuit URHE_CF 10 n 2 0 238 7 0 kW 7 68 2 kW 251 1 l h 673 t kPa 11 2 l h 446 2 kPa 3 in 3 4 15 0 238 4 04 906 8 100 3 4 33 0 314 of 7 6 25 32 1311 22 3 4 3 ph 400 V 50 Hz power supply separated from unit power supply kW 5 10 n 1 A 7 6 2 Inlet outlet water temperature 45 40 C Compressor running Operating conditions return air 20 C 50 external air 5 C 80 Selection installation use and maintenance manual 9 10 1 11 4 125 10 1 19 0 10 1 29 1 Son High efficiency heat recovery unit with cooling circuit URHE_CF air conditioning Operating limits In their standard set up the equipment Summer operation Winter operation is not suitable for installation in a saline heat pump environment Refer to fig 03 for the operating limits N B Please contact AERMEC technical sales office in the event it
13. MSS to unit fix with screws accessory to unit prepared with threaded hexagonal inserts connect electrical cables coming from the accessory electrical box to the unit electrical panel please refer to electri cal schemes equipped with the unit Selection installation use and maintenance manual 21 AERMEC 5 High efficiency heat recovery unit with cooling circuit URHE_CF em air conditioning B 40 22 116 2 dampers with actuators ON OFF 230V are included in the accessory free cooling kit FCH Mod mm URHE10CF URHE CF 15 25 33 450 550 600 310 410 460 Circular flanges FGC accessory 380 Unit accessibility Panels for inspection and or filters replacement Selection installation use and maintenance manual 22 AERMEC air conditioning General safety requirements WARNING The URHE_CF series units are destined for civil and tertiary use for all other applications in highly corrosive environments in potentially explosive atmospheres etc its use is not permitted e Bevor installation make sure that the unit has not been damaged during transportation Th
14. TO THE UNIT At the end of their operating life the URHE_CF units must be disposed of according to the present laws The main components including the unit of the URFC series are made from Galvanised sheet steel panels condensate drain pan fans aluminium sheet metal coil fins dampers electrical motor casing copper coil tubes electric motor winding polyurethane foam insulation of the sandwich panels e rock wool silencers e the cooling gas is recuperated by specialised personnel and forwarded to the disposal centre e the compressor oil is also recovered and forwarded for disposal AERMEC air conditioning High efficiency heat recovery unit with cooling circuit URHE CF Diagnosis and fault solving 1 Insufficient air flow rate Fans rotation speed too low Pressure drop of the distribution system underestimated Blocked filters Blocked intake grating Coil incrustation Clean the components increase the fan speed 0000000090000000000000000000000000000000000000000090000000000000009000000000000000000009000000000000000000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009090000099 2 Excessive air flow rate Fans rotation speed too high Pressure drop of the distribution system overestimated Filters not fitted reduce the fa
15. identified by means of a serial number on the plate High efficiency heat recovery unit with cooling circuit URHE_CF Installation and use of the unit Aa The serial number must be indicated for future reference when contacting AERMEC S p A Handling CAUTION During the handling phase wear proper individual protection devices IPD Before installation and use you are recommended to fully unpack the base unit and the all the components that come with it The units are supplied packed with polythene film and as a standard on wooden pallets For transport reasons some accessories travel separately from the standard unit and are to be reassembled by the installer following the instructions in this manual Transport Refer to the weight indications on the plate on each unit in order to transport the unit safely In any case the following precautions must be taken when transporting the unit e The unit and its accessories if any must not be subject to intense knocks which could compromise the integrity of the structure and internal parts e The unit and possible accessories must be suitably secured to the platform of the transportation by means of cables or similar in order to prevent 15 movement e the unit and accessories must be protected in order to prevent protruding parts such as the coil connections condensate drain electrical components etc from being knocked during transport
16. is necessary to operate the machine outside the limits indicated in the diagram __ _ t 4 16 Max external temperature during cooling Min external temperature during cooling Max internal temperature during cooling Min internal temperature during cooling Min external temp with heat pump operating Max external temp with heat pump operating Max internal temp with heat pump operating Min internal temp with heat pump operating Sound data ERR e Data outside the panel the data are calculated at the following conditions 1 m distance from the unit ducted supply vent and in free field 10 57 58 91 90 90 43 39 33 63 94 64 15 61 64 96 90 49 46 40 33 66 56 67 25 62 68 57 53 49 47 46 36 0 56 68 33 65 72 64 56 272 48 42 9i 2 60 13 55 9 0 2 5 9 14 11 Selection installation use and maintenance manual 10 Son High efficiency heat recovery unit with cooling circuit URHE_CF air conditioning Cooling Performance variations Heati li The CF series heat recovery unit with refrigerating circuit allow renewal of the internal air giving the necessary hourly change in order to obtain the ideal comfort conditions The use of a high efficiency cross flow heat recovery unit and a heat pump refrigerating circuit allows in most appl
17. the frame check the motor fan assemblies and replace them if necessary replace all parts in reverse order I or air conditioning Heat exchanger coils To maintain an efficient heat exchange the coils must be cleaned with a jet of compressed air and the circuit water coil must be free from air To access the heat exchanger coil of the MBC accessory disconnect the module from the unit and disassemble it Decommissioning High efficiency heat recovery unit with cooling circuit URHE_CF COMPONENT Filters Heat exchanger coil Condensate pan Heat recovery unit The table indicates the maintenance operations concerning each component indicating the type of check to perform and when it should be performed Disconnect the unit All decommissioning operations must be performed by authorized personnel in accordance with the national legislation in force in the country where the unit is located e Avoid spills or leaks into the envi ronment Before disconnecting the machine please recover e the refrigerant gas Glycol mixture in the hydrau lic Circuit e the compressor oil lubricating Before decommissioning the machi ne can be stored outdoors provi ding that it has the electrical box refrigerant circuit and hydraulic cir cuit intact and closed Disposal recovery and re cycling The frame and components if unu sable should be taken apart and sor ted by t
18. AERMEC S air conditioning HEAT RECOVERY UNITS WITH COOLING CIRCUIT SELECTION USE INSTALLATION AND MAINTENANCE MANUAL URHE CF COMPANY QUALITY SYSTEM v ow 4 ICIM ISO 9001 2008 Cert n 0128 m C Index General norms Unit description Components decription Accessories Technical data Operating limits Sound data Cooling performance variation Fans available static pressure Fresh air temperature variations on the change of the external air temperature Heating efficiencies pressure drops on air side accessories MBCH MSS Cooling scheme summer operation Cooling scheme winter operation Dimensions Accessories dimensions Accessories assembly instructions Installation and use of the unit Positioning of the supporting brackets Ducts connection Hydraulic connections condensate drain discharge FCH Free cooling accessory Electrical connections Maintenance of the unit Filters Condensate drain pan Recuperator Fans motor assembly Heat exchange coil Decommissioning Disposal Diagnosis and fault solving S p A 37040 Bevilacqua VR Italia Roma 44 JAEN Tel 439 0442 633111 Telefax 0442 93730 39 0442 93566 air conditioning AERMEC S p A 3 040 Bevilacqua VR Italy Via Roma 996 Tel 439 0442 633111 Tipo macchina Type of unit Type de machine Maschinent
19. High efficiency heat recovery unit with cooling circuit URHE CF Pressure switch out of order Machine completely empty Poor air flow Blocked refrigerant filter e The thermal expansion valve does not function correctly Check and replace See point 11 Check the air duct and the state of the filters Check and replace Check clean or if necessary replace it Check the refrigerating circuit with a leak detector 13 The refrigerating circuit functions correctly but with insufficient proficiency Lack of refrigerant Presence of humidity or incondensable in the refrigerating circuit 5ee point 11 Replace the filter and if necessary drain and refill the circuit 14 Compressor suction tube frosted Thermal expansion valve Poor air flow Lack of refrigerant Blocked liquid filter Check the valve and if it is not working correctly replace it Check filters fans and ducts 5ee point 11 Clean or replace Vibrations in the pipes e Noisy compressor Noisy thermostatic valve Secure the pipes Check electrical phases connection Check and add refrigerant 16 Evaporator coil Lack of refrigerant in the circuit before bubbles visible in the indicator Thermostatic expansion valve over closed suction pipe too hot Thermostatic expansion valve over closed expansion valve bulb partially blocked or pressure intake pipe blocked
20. MBCH Hot water coil module This is an external module that can be installed downstream from the motor fan assembly on the fresh air flow equipped with e water heating coil with copper pipes and aluminium fins with P2519 geometry The collectors are equipped with a 2 G UNI 338 threaded connector for the water inlet and outlet e The three way valves and related ON OFF actuator MBCX Module with battery This is an outside module that can be installed downstream from the motor fan assembly on the fresh air flow equipped with e Electric battery with armoured finned elements e double safety thermostat with automatic and manual reset F7 efficiency filters The units can be fitted with two cell type undulated filters in class F7 according to the UNI EN 779 classification which can be placed as a replacement of the G4 filters The filtrating cell is 48 mm thick Module with hot water coil Module with electric battery Base for addit modules floor install Roof for add modules outside install Compact filters efficiency class F7 Pase for floor installation Roof for outside installation Free cooling Kit RS485 cards Silencers modules Roof for silencers outside installation Circular flanges High efficiency heat recovery unit with cooling circuit URHE_CF Accessories MSS Module with silencers The accessory is made up of one module that is equipped with silencer position
21. al e Installation and maintenance must carried out by trained and qualified personnel having the requirements laid down by law 46 90 and or DPR 380 2001 for electric electronic and air conditioning installations with consequent registration at the local CHAMBER of COMMERCE Otherwise AERMEC S p A decline all responsibili ty regarding the safety of the product THE MANUFACTURER DECLINES ANY RESPONSIBILITY FOR DAMAGE TO PROPERTY PERSONS OR ANIMALS CAUSED BY THE NON OBSERVANCE OF THE INDICATIONS AND REGULATIONS CONTAINED IN THE PRESENT MANUAL High efficiency heat recovery unit with cooling circuit URHE CF General norms Even though a suitable risk analysis was carried out during the design of the HRR unit pay ATTENTION to the pictograms on the machine that make the reading of the manual easier catching the readers atten tion concerning risks that can t be avoided or sufficiently limited with the adoption of protection means and measures GENERAL DANGER SIGNS Carefully observe all indications at the side of the pictogram The non observance of the indications could cause hazardous conditions with possible injury to the operator and to the user in general VOLTAGE DANGER SIGN Carefully observe all indications at the side of the pictogram The signs indicate components on the unit or in the present manual identify areas that could generat risks of an electrical nature GENERAL WARNING SIGNS Q Carefu
22. autorizzata a costituire il fascicolo tecnico The person authorized to compile the technical file is La personne autoris e constituer le dossier technique est Die Person berechtigt die technischen Unterlagen zusammenzustellen Marco Pedron Luppia Alberi 170 Bevilacqua 01 08 2012 Luigi Zucchi I air conditioning The present manual is an integral part of the documentation enclosed with the machine It must be conserved for future reference and must accompany the machine throu ghout its working life The manual defines the purpose to which the machine was built and establishes the correct installation and use limits All use installation and maintenance instructions of the unit are described in this manual as well as the main accident prevention standards Read carefully and fully all informa tion contained in this manual before the installation starting use main tenance and cleaning of the unit Pay particular attention to the use regulations that are accompanied by DANGER or WARNING because if not observed they could cause dama ge to the machine and or persons and property irregularities not contemplated by this manual please consult the local After Sales Service AERMEC S p A decline any respon sibility for any damage due to the improper use of the machine and to a partial or superficial reading of the information contained in this manu
23. conditions 24 C 50 RH gt corrective coefficient 1 040 Fans available static pressure 1 The variations of the static pressure used Effective available pressure 1 05 Therefore the effective flow rate the fans to change the air flow which nominal available pressure reports are the supply side is 1500 x 1 08 be set by means of the electronic regulators 210 245 0 86 and 235 245 0 96 1620 mc h the effective flow rate on during the setting phase in relation to the respectively The coefficients which can the exhaust side is 1500 x 1 05 1575 nominal values present the technical got from the graph are 1 19 and mc h data table are represented in the graph of fig 5 The curve is valid for all sizes of the URHE CF series As an example a unit of the URHE15CF series is considered in which the feed to the fans is at the maxi mum value The technical data table illustrates the following performances Nominal supply air flow 1500 m h Nominal exhaust air flow 1500 m h Available static pressure on supply 245 Pa Available static pressure on exhaust 245 Pa It is supposed that the pressure drops of the air distribution system on the supply side are equal to 210 Pa while the pressure drops of the air distribution system on the exhaust side are equal to 235 Pa EX d 3E Td 3 es Ree 1 T T E m E iil a a a a N
24. e condensate drain pan is provided with a 1 diameter threaded discharge pipe G UNI 338 The drainage system should feature an adequately sized trap to freely discharge the condensate e prevent the undesired entry of air into the vacuum systems e prevent the undesired exit of air from the pressure systems prevent the infiltration of odours insects In the lower part of the syphon must have a bleed cap or must anyway permit fast dismantling for its cleaning Rules to follow for the scaling and production of the syphon are given below NB DURING INSTALLATION INCLINE THE UNIT TO FACILITATE DRAINAGE OF CONDENSATE FROM THE SIPHON Selection installation use and maintenance manual High efficiency heat recovery unit with cooling circuit URHE CF Anti vibration joint Canvas Electric earthing not sup plied Supply duct lt H2 H1 2 Min lenght 1 m max divergence 7 P is the pressure expressed in mm of water column 1 mm 9 81 fig 11 air conditioning High efficiency heat recovery unit with cooling circuit URHE CF FCH free cooling accessory The assembly of the free cooling kit accessory must be performed by qualified personnel in accordance with the present standards and must be made following the indications in the electrical layout supp
25. e use of the damaged machine might be dangerous e Installation and extraordinary maintenance must be performed by qualified people in accordance with the present standards e The unit must not be used to recover equipment spare parts Any use other than those indicated in this manual may generate hazards and is therefore prohibited e Before performing maintenance or cleaning operations make sure that the unit is disconnected and ensure that it is not reconnected without informing the person who is working on the unit e During maintenance and cleaning pay attention to possible burning of the heating coils e Before starting the unit make sure that the electrical parts have been connected to the earth system of the building e Before starting the unit make sure that the fan vents have been ducted or include safety meshes The unit is not designed for external installation external installations require particular technical characteristics and devices which these units cannot guarantee e During installation maintenance and cleaning wear suitable Individual Protection Devices IPD The units are fitted with an adhesive label fig 07a which indicates the model the gross weight and the customer an adhesive label fig 07b which indicates the main technical data such as the model nominal air volume efficiency of the heat recovery unit electrical data and performance of the coils Each URHE_CF unit is
26. ecovery unit on the supply and return airflow The standard filters are class G4 type in accordance with classification UNI EN 779 with weighted efficiency of 90 They are 48 mm thick and are easily removable from the top or bottom of the unit for to do the cleaning or replacement Dirty filters pressure switch A differential pressure switch is present pla ced close to the electronic controllers for the detection of the supply filter clogging The interventation value can be set The pressure switch includes clean contacts NA NC to remote the alarm Heat recovery unit This is static cross flows recuperator made of aluminium sheets to grant high performances During winter operation the average efficiency is above 80 for the first High efficiency heat recovery unit with cooling circuit URHE CF Description of the components two sizes and 70 for the last two sizes ensuring first class energy recovery from the air expelled from the room Support brackets They allow the unit to be rapidly and securely fixed to the false ceiling Accessibility The heat recovery the condensate tank fans and filters are removable from the bottom removing the two lower panels if the unit is hanging the same can be easily removed from the air by removing the two top panels if units is on the ground The inspection of the electrical panel and the circuit is guaranteed by side panels For the inspection of the filters i
27. ed on the supply or exhaust It is made of rockwool panels with the surfaces in contact with the air and protected by a polyester film held between two galvanised and micro perforated laths FGE circular flanges The accessory is supplied as a single unit The accessory is made up of flanges which connect to the rectangular opening vent of the unit so as to allow the use of circular ducts Note for further information see the tables in this manual and the various accessories kits see fig 02 below regarding compatibility FCH Free cooling kit It allows for the unit operation in free cooling temperature only The free cooling kit includes 2 dampers with related ON OFF 230V servomotors For further information refer to the Use manual FCTI BITI TEEI FCH1 Selection installation use and maintenance manual 7 551 551 Base for floor installation BIM Base for floor installation of the additional modules The accessories equipped with a metal frame with high 120 mm allow to transform the standard unit to a unit which can be placed on floor TPE Roof for outside installation TPM Roof for outside installation of the additional modules TPMSS Roof for outside installation of the silencers modules This accessory made of galvanized sheet allows for the protection from rainings for unit and its accessories RS485 Interface card Interface card necessary for the interface to supervisione syst
28. ed to the unit Exhaust air Fresh air fig 12 AERMEC air conditioning The unit is completely wired in the factory and requires the power supply intercepted with inline protections indicated on the unit specification plate in order to be started The installer should define the power supply line based on the length the type of cable the absorption of the unit and the displacement TAB 3 electrical connections must be in accordance with the present standard at the moment of installation CAUTION Refer to the electrical layout supplied with the equipment for installation needs Check that all power cables are correctly secured to the terminals when switched on for the first time and after 30 days of use Afterwards check the connection of the power cables every six months Slack terminals could cause the cables and components to overheat The electrical wiring and connections must be done by qualified persons in accordance with regulations currently in force Every electrical user must be High efficiency heat recovery unit with cooling circuit URHE CF Electrical connections connected to system s earthing system Use the connectors with the earth symbol to connect the earthing of the unit and possible accessories to the earthing of the building Respect the installation power supply and environment conditions Keep the panel and wir
29. ems according to the MOD BUS protocol FCT2 FCT3 BIT2 BIT3 TPE2 IPES MSS2 TPMSS2 FGET 8 I air conditioning URHE CF MODEL External nominal air flow Recovery nominal air flow Minimum air flow Supply static available pressure Exhaust static available pressure Total heating capacity compr Total cooling capacity rec compr Available heating capacity Available cooling capacity Recovered heating capacity Recovered cooling capacity Refrigerating circuit heating capacity Refrigerating circuit cooling capacity Tot input power in winter Tot input power in summer Sound pressure level Power supply RECUPERATOR Efficiency in winter Efficiency in summer FANS Fans number Total nominal input power Total max absorbed current Protection class FILTERS Classification according to EN779 Weight efficiency Classification according to EN779 filters accessories Additional pressure drop for F7 filters optional REFRIGERATING CIRCUIT COMPRESSOR Refrigerant Compressors input power in winter Compressors input power in summer Compressors max absorbed current CONDENSATE DRAN PANEL Diameter of the condensate dran panel charge Caution the electronic regulators that are incorporated in the machine allow to regulate the air flow in the limits indicated in the previous table in order to set the system Once setting has been completed the regulators no High effic
30. es that have already been delive red or are being constructed The general conditions are in any case subject to the general sale conditions included on the stipulation of the con tract e air conditioning The URHE CF series is the mono block solution to the needs of systems normally used in bars restaurants offices meeting rooms The URHE CF units which are divided into four sizes with a rated airflow from 1000 to 3300 m h have been designed to guarantee a wellbeing conditions allowing a suitable air change in order to reduce the build up of gas and undesired particles present in the environment to be treated CO cigarette smoke unpleasant odours sweat dust The peculiarity of these series is repre sented by the high efficiency got thanks the use of the cross flows plate recupe rator combined with a cooling circuit in heat pump operating with refrigerant R410A The URHE_CF unit in addition to the ventilation filtration and recovery of heat also includes in a mono bdamper unit a heat pump refrigerating circuit This allows to obtain a complete machine which operates independently High efficiency heat recovery unit with cooling circuit URHE_CF Description of the unit E in all seasons and which is capable of combining the necessary renewal of air with an efficient recovery of heat The accurate design of the machine combines the extremely compact size which makes installation
31. ications and in the most common external air temperature conditions in addition to the neutralisation of the heating load of the external air to supply an adequate heating and cooling capacity to compensate the internal heating loads The fig 4 illustrates the graph from which it is possible to draw the coefficients to be LLL 1 0 LSS LLL EL LL EEE HS HA TESNA mm I e 5 multiplied by the nominal values which 7 9 10 15 25 30 35 40 present technical data table to External air temperature determine the total refrigerating and heating Key performance based on the outside conditions Room air temperature Room air temperature Summer operation 26 C 50 UR Winter operation 20 C 50 UR MOLTIPLICATIVE COEFFICIENTS FOR THE COOLING AND HEATING PERFORMANCE TO ROOM AIR TEMPERATURE VARIATION IN SUMMER WINTER OPERATION SUMMER OPERATION WINTER OPERATION Room conditions 22 C 50 RH gt corrective coefficient 1 050 Room conditions 18 5096 RH corrective coefficient 0 980 Room conditions 24 C 50 RH corrective coefficient 1 025 Room conditions 20 C 50 RH gt corrective coefficient 1 Room conditions 26 C 50 RH gt corrective coefficient 1 Room conditions 22 C 50 RH gt corrective coefficient 1 020 Room conditions 28 C 50 RH gt corrective coefficient 0 975 Room
32. iency heat recovery unit with cooling circuit URHE CF Technical data 10 15 25 33 m h 1000 1500 2500 3300 m h 1000 1500 2500 3300 m h 800 1000 2000 2500 Pa 320 245 140 220 1 Pa 320 245 140 220 3 kW 7 5 142 248 33 1 2 kW 6 6 8 7 13 8 19 8 3 kW 2 8 2 9 3 9 7 0 2 kW 1 8 31 33 54 3 kW 3 6 10 0 15 3 19 6 2 kW 22 32 45 5 8 3 kW 3 9 42 9 5 13 5 2 kW 44 5 5 9 3 14 0 3 kW 22 24 42 49 2 kW 2 6 2 9 5 1 6 5 4 db A 66 69 72 5 1 230 50 1 230 50 34N 400 50 34N 400 50 96 82 80 73 71 82 80 68 65 2 2 2 2 KW 0 9 0 9 2 1 2 1 A 7 6 7 6 10 5 10 5 55 55 55 55 G4 G4 G4 G4 96 90 90 90 90 F7 F7 F7 F7 A Pa 35 59 58 63 410 410 410 410 3 kW 13 1 5 2 1 2 8 2 kW 1 7 2 0 2 8 4 4 10 0 11 0 7 0 10 3 in 1 1 1 1 longer need to be touched 1 Fan power supply 230 V nominal airflow rate 3 Operating conditions return air 20 C 50 external without accessories air 5 C 80 2 Operating conditions return air 26 C 50 external 4 At a free field distance of 1 m with ports canalized air 34 C 50 Selection installation use and maintenance manual 8 I air conditioning ACCESSORIES MBCH Water heating coil ROWS Front surfaces Air side pressure drop at nominal flow rate Heating capacity Heating capacity Water flow rate Water side pressure drop
33. ing away from electric and magnetic fields that could disturb such as inverters high voltage power supply lines etc CAUTION Once the connections have been made TABLE 3 Voltage Frequency Room humidity during operation Room humidity during operation Altitude check that all the cables have been correctly connected and that there are no short circuits between terminals and the terminals and ground the electrical terminals both within the electrical panel as well as in the terminal board of the compressor are secured and that the mobile and fixed contacts of the remote control switches do not show signs of wear Do not block the air intake of the panel Never connect or disconnect the remote terminal with energised main board 10 the nominal voltage EN60204 1 frequency in continuous way 2 for breve periodo from 30 to 9590 without condensate or icebild up EN60204 included between 5 and 40 C EN60204 Up to 1000 m s l m EN60204 Before the start up Before start up check that the system has been charged and the air has been blown out the electrical connections have been made correctly the line voltage is within the permitted allowance 10 of the rated value Unit start up For detailed information regarding the operating parameter settings and all other machine or control card operations please refer to the user manual CAUTION Make sure that all the ins
34. lied with the unit The compressor is off during the functioning of the unit in the free cooling mode The temperature settings are pre set at fixed values on request these values can be changed by contacting the After Sales office en E Q Q Q Gum 2 E e Q c N Selection installation use and maintenance manual Room airr Operation The free cooling function foresees that the air expelled from the room does not affect the heat recovery unit passing directly to the outside through a duct connected to the damper B In order to use the free cooling function a duct is required to connect to damper A and another to connect to damper B The two dampers A and B have an opposing function When the outside temperature is close to the ideal temperature of the room damper A is closed while damper B is open OUTSIDE Exhaust damper motor air temp detecto 26 Accessory assembly For the assembly of the free cooling accessory please refer to fig 12 place the two dampers with servomotors as indicated in the figure e make sure that the damper is closed during the free cooling function while the damper is open opposing functions connect the damper servomotors CAUTION Before assembling the free cooling kit make sure that the power is not connect
35. lly observe all indications to the side of the pictogram that limit some actions in order to ensure grea ter safety for the operator MAIN GUARANTEE CONDITIONS The guarantee does not includ pay ment for damages due to incorrect installation by the installer The guarantee does not include pay ment for damages due to the improper use of the unit by the user The manufacture is not responsible for injuries to the installer or user caused by incorrect installation or improper use of the unit e equipment must be installed in such a manner so as to allow mainte nance and or repair operations The guarantee does not cover in any case costs due to turntable ladders scaffolding or othe similar elevating systems that are necessary to carry out operations under guarantee Selection installation use and maintenance manual 4 The guarantee is not valid if the services and repairs have been carried out by unauthorised personnel or companies the unit has been previously repaired or modified with non original parts e the unit has not been suitably maintai ned the instructions illustrated in the pre sent manual have not been observed unauthorised modifications have been made Note The manufacturer reserves the right to carry out modifications at any time dee med necessary to improve their product and are not obliged to apply the said modifications to previously manufactured machin
36. n both the cabinet and the floor version you can disassemble the openings on the top and bottom panels are fastened with flyers URHE CF 10 15 Cooling circuit Electric board Centrifugal fan G4 Filter Heat recovery unit Exchange coil Condensate discharge ON Fans inverter Regulation The unit is equipped with an electrical panel with power and regulation section including the three way valve for the additional hot water coil and related servomotor aimed at guaranteeing the management of all refrigerating circuit functions Also present NTC temperature probe on the internal air recovery external air temperature probe pressure switch on the supply filter With the free cooling accessory are supplied dampers and servomotors A remote control terminal is also supplied for the automatic management of the unit remotable up to 150 meter cable not supplied The unit is equipped for the management of a luminous sign 230V which switches on in case of generic alarm or unit OFF in conformity with the norms in force for rooms for smokers The following operations can be performed on the microprocessor switching on and off of the unit summer winter changeover setting of set point parameters reading of room temperature N B For further information refer to the user manual Selection installation use and maintenance manual 6 AERMEC 9 air conditioning
37. n speed e Fit filters Power supply off e Electric motor burnt out Make sure power supply is available Replace the electric motor Excessive flow rate Bearings worn or defective Foreign objects on the fan blades Reduce flow rate Replace bearings e Clean blades rap Blocked No trap or incorrectly carried out Clean trap Use an adequate trap 6 The compressor does not start Defective connection or contacts open hermostat does not respond functioning Safety device does not respond Check the voltage and close the contact e System at temperature no request check the setting and the See point 9 and 10 7 The compressor does not start Defective compressor Compressor burnt out or seized Compressor remote control switch de energised Power circuit open Replace compressor Replace compressor Check the voltage across the operating time of the protection
38. on suspended ceilings easier with easy accessibility for the maintenance of all internal parts This gives the opportunity also thanks to the management and installation simplicity to satisfy many system requirements WARNING The URHE_CF series is made to gua rantee indoor air supply and extraction The refrigerating circuit is calculated not only for giving supply air characte ristics near to that of the indoor air with the aim of avoiding disease conditions near vents but also for covering in part ambient thermal loads Thermal and refrigerating capacities which carry air conditions from the indoor air ones to those who cover in part ambient thermal loads are referred to as thermal available capacity and refrigerating available capacity These capacities are only an integration of those guaranted by a conditioning unit The URHE_CF series is not a conditio ning unit and it cannot be set apart from a conditioning unit if prefixed indoor air conditions temperature and humidity have to be guaranteed Available versions The URHE_CF units are available in 4 different sizes Each model can be configured in such a manner to satisfy the system requirements by suitable combining the available options The table in fig 01 shows the procedure of the commercial acronym in the 6fields from which it is made Field 1 2 3 4 URHE Field 5 6 sizes 10 15 25 33 Field 7 8 CF Cooling circuit Electrical panel acce
39. pressure switch BP Low pressure switch VS Safety valve Selection installation use and maintenance manual 15 High efficiency heat recovery unit with cooling circuit URHE S air conditioning Dimensions URHE15CF FILTER ACCESSIBILITY CONDENSATE DISCHARGE 1 J UN 338 FILTER ACCESSIBILITY CONDENSATE DISCHARGE 1 J UNI 338 ROOM AIR SUPPLY FAN OUISDEAR SUCTION EXHAUST OOLING CIRCUIT ACCESSIBILITY 574 COOLING CIRCUIT ELECTRICAL ACCESSIBILITY Weights and kg URHE10CF 300 700 650 URHE SCE 310 740 745 Selection installation use and maintenance manual 16 AERMEC High efficiency heat recovery unit with cooling circuit URHE CF air conditioning URHE25CF CONDENSATE DISCHARGE 1 J UNI 338 FILTER ACCESSIBILITY FILTER ACCESSIBILITY CONDENSATE DISCHARGE 1 J 338 ROOM AIR OUTSIDE AIR SUCTION BY PASS FOR FREE COOLING SUCTION y 2 COOLING CIRCUIT ACCESSIBILITY ELECTRICAL PANEL 1496 1638 25 373 1130 220 Selection installation use and maintenance manual 17 IA High efficiency heat recovery unit with cooling circuit URHE CF
40. rs for the blocking of unit not connecting the central bra ckets N B It is recommended to place rubber dampers to decrease the vibrations generated by the unit Selection installation use and maintenance manual 24 _ air conditioning Ducts connection CAUTION Never start up the unit when the fan opening vents are not ducted or covered by protective mesh See fig 10 for the installation of the ducts use adequate brackets to support the ducts in order to avoid that the recovery unit is overloaded by their weight 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 connect the supply and exhaust vents to the ducts using vibration damping joints canvas The vibration damping joint must be screwed to the panel with self tapping screws positioning the screws inside the border highlighted in the following layout avoiding that the canvas joints are over stretched point 1 connect a earth wire to the vibration damping joint to act as a jumper to guarantee the unipotentiality between the ducts and the recovery unit place the supply duct with a straight section of at least one meter before the bends branches etc and make sure that the ductling does not have inclinations of the divergent sections greater than 7 Hydraulic connections of the condensate drain Th
41. ssibility Condensate dischar FEM ia ge 15 UNI 338 Exhaust fan Outside air suction Room air suction By pass for free cooling Selection installation use and maintenance manual 5 AERMEC air conditioning Panels and frame The frame is made up of 25 mm thick galvanised self supporting sandwich panels with injected polyurethane insulation density of 42 kg m and nylon reinforced corners with glass fibre The construction of the casing simplifies installation and maintenance m They are centrifugal fans with forward curved blades and with directly connected motor The 230V 50 Hz single phase motor has one speed The airflow in case of pressure drops changes of internal components clogging filters and distribution system remains costant Refrigerating circuit This is a highly efficient and silent heat pump with scroll or rotative compressor operating with refrigerant RA10A according to sizes four way valve for cycle inversion evaporating coil safety valve condensing coil liquid receiver thermostatic valve liquid light high low pressure switch and by pass valve for little sizes Condensate drain pan made of aluminium alloy removable and with double discharge Evaporating condensating coil with cupper grooved tube and high efficiency aluminium fins Filters these are cell undulated type placed before the r
42. tion of one of them resulting in the intervention of the relay of the phase sequence AERMEC air conditioning Checks during operation The air flow rate values must not be lower than 15 of the nominal values indicated in the technical specifications table If an electrical resistance is present check the cut in by measuring its electrical absorption Requirements for RA07C gas The circuit chillers that work on R407C cooling gas require particular attention during assembly and maintenance to prevent operating faults Therefore it is necessary to Unit maintenance High efficiency heat recovery unit with cooling circuit URHE CF Avoid refilling with oil different from the one specified and already used in the compressor If there are gas leaks causing the unit to be even partially empty do not refill with refrigerant but empty the unit completely and refill it with the foreseen amount In the event of replacement of one of the refrigerating circuit parts do not leave the circuit open for more than 15 minutes In particular in the event of replacing the compressor complete the installation within the above mentioned time after the rubber plugs have been removed When empty do not switch on the CAUTION During the maintenance phase wear proper individual protection devices IPD Before performing maintenance and or cleaning operations on the unit make s
43. tructions have been complied with before carrying out the commissioning checks Before the first start up of the heat recovery unit check the following points e the exact positioning of the panels in correspondence with the motor ventilating assembly that require opening by means of a screw driver the fixing of the unit to the wall e the earthing of the unit to the buildings earth system the connection to the ducts the condensate drain connection to trap the insulation of the tubes to the coils e the ground wires of the electrical components the absence of air in the water coils In particular check that e the electrical connection has been performed correctly and that all terminals have been sufficiently tightened e the voltage on the terminals is 230 V 10 for units with single phase power or 400 V 10 for units with three phase power Selection installation use and maintenance manual 27 If the voltage is subject to frequent change contact our Technical department in order to select the necessary protection there are no leaks of refrigerant through the use of a leak detector CAUTION Before start up check that all the panels of the unit are in place and secured with the screws WARNING If at the time of the first start the compressor don t start the cause be attributed to a wrong wiring of the sequence of the phases L1 L2 L3 or to the interrup
44. ure the unit is disconnected from the power supply and that it can not be turned back on without the knowledge of the person performing maintenance and that the heat exchanger coils are not working During maintenance the weight of the inspection panelling could hinder the work The URHE CF series recovery units have been designed to require very little maintenance and to make every operation easy Some simple pieces of advice follow for the proper maintenance of the unit Filters Filter cleaning is imperative to maintain high air quality in the room The synthetic filters installed in the URHE CF unit can be regenerated with compressed air or can be washed with cold water To disassemble the filters remove the inspection panel with knobs e remove the filters e clean the filters replace all parts in reverse order Condensate drain pan Dirt can hoard up in the condensate drain pan You are therefore recommended to clean the pan regularly and check that the discharge pipe is not clogged To remove the condensate drain pan of the heat recovery unit If the unit is placed in the ceiling remove all bottom panels e disassemble the cross bar edisconnect the pan from the condensate drain pipes disassemble the pan supporting brackets e clean the pan replace all parts in reverse order If the unit is placed on the ground remove all above panels e disassemble the cross bar
45. yp Modello Model Mod le Modell Matricola Serial No Num ro de s rie Seriennummer La macchina conforme alle disposizioni contenute nelle seguenti direttive The unit complies with the provisions contained in the following directives La machine est conforme aux dispositions contenues dans les directives suivantes Das Ger t entspricht den Bestimmungen der folgenden Richtlinien enthaltenen 2006 42 CE Direttiva Macchine Machine Directive Machine Directive Maschinenrichtlinie 2006 95 CE Direttiva Bassa Tensione Low voltage Directive Basse Tension Niederspannungsrichtlinie 2004 108 CE Direttiva EMC EMC Directive EMC Directive EMV Richtlinie 97 23 CE Direttiva PED PED Directive PED Directive PED Richtlinie Componente Component El ment Komponente Modulo Module Module Modul Pressostato di alta pressione Pressure switch Pressostat Druckschalter Valvola di sicurezza Pressure relief valve Valve de s curit Sicherheitsventil Compressore Compressor Compresseur Kompressor Ricevitore di liquido receiver Fl ssigkeitssammler Boutilles liquide Separatore di liquido Suction accumulator Fl ssigkeitsabscheider Boutilles anti coup Fitrodeidratatore Filter Filter Filtres PA 222 Rubinetti Ball valve kleinventile Vanes A 2 di scambio termico Coil Register Batterie O A gt gt gt La persona
46. ype especially copper and aluminum that are present in large quantities in the machine All materials must be recovered or disposed in accordance with natio nal regulations RAEE Directive only UE e The RAEE Directive requires that the disposal and recycling of elec trical and electronic equipment must be handled through a special collection in appropriate centers separate from that used for the di sposal of mixed urban waste The user has the obligation not to dispose of the equipment at the end of the useful life as municipal waste but to send it to a special collection center The units covered by the RAEE Directive are marked with the symbol shown above The potential effects on the envi ronment and human health are detailed in this manual Additional information can be obtained from the manufacturer Selection installation use and maintenance manual 29 OPERATION cleanliness control coil claning control cleanliness control coil claning control FREQUENCY twice a week each year each year each year The frequency is approximate and varies depending on the working and environmental conditions in which the heat recovery unit operates Disposal All units are checked and tested at the factory before shipment howe ver during operation an anomaly or failure can occur BE SURE TO RESET AN ALARM ONLY AFTER YOU HAVE REMOVED THE CAUSE OF THE FAULT REPEATED RESET MAY RESULT IN IRREVOCABLE DAMAGE

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