SERVICE MANUAL
Contents
1. pag 2 NOLS silla PCIE Rr Oe Roan pag oa Staring and E e ve Du Le BEE pag 3 1 First start up or after a long halt oma ete Mattei o at cte aide Shared pag 3 2 Start up with low outside temperature only on HPSCxxA L models pag IOS EE 9 ANG tele Ur Le EE pag A e ECH EE pag 4 1 Control of the condenser fan speed HPSCxxA L models only ee pag 4 2 Emergency cooling optional ccc pag 5 Operating logie A E A T pag e Gooling only d dr EA E TEN DPI RES pag 9 2 Ub WIllpe leche NGANG d diste akhata qa pag 5 BIR GGO ONG os t oa th re Ud dab d pag 5 4 LAN local network management Stand by and Cascade modes pag AA COMUON Sam asss aS TP pag Bu ul CEET pag 7 Maintenance Spare parts pag Z WE Elei te ois dd Hair iei ud da E ie du ds aa oa pag T e Extraordinary Maintenance 33 Gare tie a GSS Der A puta er _____ do Ata bua Bon pag re DSN GANG in UGEET pag dos e e LEE pag 8 JAppehdlx2. WALL IN FRONT OF UNITS WALL BEHIND WALL BEHIND UNITS UNITS MULTI ROWS INSTALLATION TAL lt 0 5KH2 min 500mm IfO 5xH2 lt H1 lt H2 min 800mm If H1 2 Not allowable configuration pag 28 Fig 5 Electric connections N oH optional I L AC power supply DC power supply optional AC line input SC unit control M Powerface display HPSC 25 p p e auo ai T p c P ber pe o an 2 cable clips PG21 o _ gt WT xen Zeg WT _ AC line input No 2 cable clips PG21 Auxiliary input HPSE AC line output for HPSC condensing unit EFC line input power supply 48Vdc 230Vac Free Remote display plug No 2 holes for cable clips PG21 Standard control option EFC 48Vdc 230Vac Hiromatic plug LAN plug Connectivity control option Connectivity control option pag 29 p euondo qm qm POEM gt e c c LI lt gt gt lt gt uolse3 ESCAREA BBE 55 en ova en zw va UM euru Ta di dH py s EA E 90 3SdH 90 EET 1 8t ZH 09
3. uonoeuuoo eouioe 3 1 6 51015 8 N GE H 009Xx0Sc JeJOt NOISH3A LONG 1 238 1 4 06 M3IA 3GIS LH9IWH MIA 3GIS 1331 YM t L 2ZL 01L 80 3SdH qi Du 096 pag 18 uonoeuuoo MIIA WOLLO8 MIA 2015 1331 1 6 SIOIS 8 N V IN uonoeuuoo 1 3GIS M3IA LNOHH 1 0L 90 90 3SdH 21 Du pag 19 uonoeuuoo E91199 43 1089 M3IA 2415 1331 1 6 51015 8 N 06 M3IA uonoeuuoo ejesuepuoo Oo 16 N TH 0 CET D CHE M3IA LNOHH 3GIS LHOIH 1 1 21 3SdH DL 226 20 M3IA LNOHH GE S08 suonoeuuoo eoune 3 19 MIA IQIS 026 jueJeDujey 0r8 80 90 OSdH 9 6 4 pag 21 959 995 M3IA
4. Remove the panels of the compressor com partment to access the refrigerating circuit if the weather conditions allow this prevent water from entering the electric board and the compressor compartment Check that the refrigerating circuit is intact and that there are no oil stains in the com pressor compartment and along the ducts Check the evaporating fan by turning it by means of a screwdriver it must be free to ro tate without any abnormal noise Check that the electrical board is free from foreign bodies the correct connection to the evaporating unit and that all electrical con nections are tightened The unit is ready for the dynamic check pag 8 B DYNAMIC CHECK B 1 B 2 B 3 B 4 B 5 B 6 B 7 B 8 B 9 B 10 B 11 B 12 Check the ground connection Put the electrical board of the room in the ON position Set the main switch of the indoor unit ON Check the voltage at the main supply cables Check the voltage at the emergency supply cables Only for the units equipped with Hiromatic re mote interface set the wished system con figuration such as set point network only for Advanced versions by assigning an identification number for each unit para meter sharing stand by freecooling differ entials if installed and so on Measure the current absorbed by the evapor ating fan only Start up the compressor if necessary force the system via the con
5. 022 10 ZH 05 OEZ OPA 243 10 243 pue UM UOISISA Addns 90 OSdH 3SdH 614 pue 3sdH suonoeuuoo 9119919 9 DL pag 30 imiil euondo ae 076 OEC 044 014 gg AENA di dH 01 80 35 01 80 X X X od d L4 ME 4 d d ZH 08 N 10 ZH 06 OE Aiddns OPA 043 10 022 043 pue ui 7 21 01 80 3SdH 99 Du pag 31 d v pJeoq uue v VON v i z aoe 0 O 91 x SE e ejdsip lqelouu tu Ke dsip ou peueeuos sejod g ejqeo OL lt 3 pieoq eui uo A 022 243 UOISI A UOISI A 1 01 80 90 3SdH Du uueje y pue ejdsip out jo A DH pag 32 OZ 2 9 a 4 EE Hoco zl O OI Go nm o
6. a deca REG Pa TL S Ex EE adus aiu E RE iN E pag 8 1 Check the unit after the installation ea R3 rans pag NADICS ieran daana tod oa eee ae ele etal ea etree aes eae 6 Bem abe meee eee oneal eed pag I l c w moo PP BP SP P GW rh Drawings EE EE pag 17 1 Preliminary operations 1 1 Foreword This manual covers the installation operation and mainten ance of HPS air conditioners which are composed of an evaporating unit HPSE positioned in the room and a con densing unit HPSC positioned outside IMPORTANT Also consult the manual for the microprocessor control 1 2 Check operating limits The units are designed to operate within specific working ranges see Tab 1 Tab 2 Tab 3 Tab 4 Tab 5 and Tab 6 These limits are referred to new machines or for those that have been correctly installed and serviced The warranty clauses are no longer valid for any damage or malfunction that may occur during or due to operation outside the ap plication range 1 3 Check sound pressure levels Tab 1 Tab 2 Tab 3 Tab 4 Tab 5 and Tab 6 show the in ternal HPSE and external HPSC sound pressure levels for units in standard configuration in continuous operation at 2m from the front surface of the machine 1m above base level a
7. 24 C 30 80 35 40 R H 30 C 40 R H Storage conditions 40 C 5 R H 55 C 90 R H Sound pressure level Outdoor sound pressure level 7 50 Indoor sound pressure level Standard electrical features Compressor AC power input 2 Compressor AC operative current OA 2 Compressor AC max current FLA Compressor AC starting current LRA Condenser fan AC power input 2 Condenser fan AC max power input Condenser fan AC operative current OA 2 Condenser fan AC max current FLA Condenser fan AC max current FLA Evaporator fan AC power input 2 Evaporator fan AC operative current OA 2 Evaporator fan AC max current FLA 3 Evaporator fan AC starting current Electric heating optional Heating capacity Heating max current OA Standard Operating Ampere FLA Full Load LRA Locked Rotor Ampere Notes 1 2 3 The emergency cooling option is required Maximum outdoor temperature referred to 30 35 indoor unit air suction HPSE Conditions referred to the suction sections of the inner unit HPSE the min indoor temperature is referred to 3096 of indoor relative humidity and to the min outdoor temperature for higher relative h
8. Condenser fan AC max current FLA Evaporator fan DC power input 2 Evaporator fan DC operative current OA 2 Evaporator fan DC max current FLA 3 Evaporator fan DC starting current Electric heating optional Heating capacity Heating max current OA Standard Operating Ampere FLA Full Load LRA Locked Rotor Ampere Notes 1 2 3 The emergency cooling option is required Maximum outdoor temperature referred to 30 35 indoor unit air suction HPSE Conditions referred to the suction sections of the inner unit HPSE the min indoor temperature is referred to 3096 of indoor relative humidity and to the min outdoor temperature for higher relative humidity and or outdoor temperatures the min indoor temperature is higher than the table data Measured with 35 outdoor temperature at 2m far from the unit free field conditions Indoor reference conditions 30 C 3596 R H at the HPSE indoor unit air suction sides 35 C outdoor Nominal power supply It refers to nominal speed Factory setting pag 11 4 50 Hz Technical data for COOLING ONLY and COOLING HEATING unit versions F and F C coupled with HPSCxxA L Operating limits 230V 1090 1Ph 50Hz 400V 10 50Hz Main power supply voltage 30 C 51 50
9. Fabrikant erkl rer herved at dette produkt opfylder kravene i EU direktiverne O Koxaoxkevaorujc nover Ott sivari kavaokevaou vo ue E E 98 37 CE 89 336 CEE 73 23 CEE Since the Liebert HIROSS Company has a policy of continuous product improvement it reserves the right to change design and specifications without previous notice Zona Industriale Tognana Via Leonardo da Vinci 16 18 Liebert do de HIROSS 35028 m PD Tel 39 049 9719111 m Telefax 39 049 5841257 rOnet www liebert hiross com N Liebert HIROSS EM ERSON is a division of EMERSON Network Power lt 0 Sei T i gt 26 gt 2 2 E o 2 gt 2 5 o 2
10. min C Max room operation humidity N OPERATING AIR HUMIDITY Mak refrigeration circuit pressure amp 8 8 9 min Z CIRCUIT MAX PRESSURE Bar MANUFACTURING DATE Index t Preliminary 5 e EE CU d x eet pag M RE E E eT MEET pag 1 2 heck operating rn EE pag Check sound pressure T4 Conditioner NS pecon s32 522 94 d E A Boe eae Be abu s RUE I bapa pag gine MAP p TP pag TO SONG EE pag SV ICING AS ERREUR pag 2 Inslallaloli u s u x niue eet BN A D PA LEER pag 21 Overallcliersiore sr usus sss assasi eU pag 2 2 Positioning the APSE Indoor urit EE pag 23 Positioning Iwo Inner APSE UNS 35232 2 4 Freecooling duct connections optional m hrs pag 2 5 Positioning the HPSC condensing unt pag 2 0 s Inernderalonmeconte e x acude oso dis OUR od pag 2 7 Condensate drain connection eee hes pag 2 8 Electrical connections and wiring diagram supplied with the unit pag 2 TOn a ERSTE ET T TET I Iq CER pag 2 10 Emergency cooling version EFC 48 VDC 230
11. ing if it is not properly fixed To lessen the problem of strong gusts of wind position the condensing unit close to a wind barrier e g building or enclosing wall and in a direction perpendicular to the flow of the discharge air To prevent tilting ensure that the unit is securely fixed if necessary through additional supports or tie rods thus ensuring stability even in case of earthquakes Position the unit so that the ejected hot air and the sound emissions do not disturb people In case of snow make sure that the unit is not completely covered and that the inlet sections are always clear To enable sufficient air de livery through the unit s and to have sufficient space for maintenance it is necessary not to obstruct the air inlet and discharge sections of the condensing unit position ing it or several machines to maintain the minimum ser vice areas and distances indicated in Fig 4 for some possible installation configurations Fig 3 shows some examples of how to install the con densing unit For wall mounted installation the con densing unit can be supplied with an optional mounting kit comprising a pair of galvanised steel angle brackets painted with RAL9002 polyester powder with a smooth finish suitable elastomer anti vibration mounts and stainless steels fixings including anchor screws for wall fastening see Fig 2d NOTE The anchor screws included in the kit are to be used only when fastening the brackets to
12. valves Schr der on the gas and liquid lines also ar range a connection with a nitrogen bottle 4 Load the circuit with nitrogen 7 bar 700 kPa Find poss ible leaks in the circuit by soapy water or other specific product foaming agents and repair as necessary 5 Drain the circuit by a vacuum of 0 3 mbar absolute 6 After 3 hours check notto have exceeded 1 3 mbar abso lute this condition ensures a humidity lower than 50 ppm inside the system If the vacuum is not kept there are still leaks repeat the operations from point 4 7 2 2 Refrigerant charging After having eliminated the humidity from the refrigerating cir cuit see 7 2 1 proceed as follows 1 Make sure all the unit components are in operating order 2 Using a charging hose connect the cylinder to the liquid line of the circuit Drain the substances that cannot be condensed from the hose Charge the circuit exclusively with the A refrigerant indicated on the identification label Charge the quantity of refrigerant indicated in Tab e 3 Setthe main switch on ON 4 Startthe compressor 5 The charge operation can be considered finished when keeping the condensation temperature at a steady level 50 C if necessary partially clog the condensing coil no more bubbles appear for at least ten minutes Check if the superheat in these conditions is 7 8 degrees Superheat calculation With the unit operating in standard conditions me
13. a concrete or brick wall including hollow bricks Do not use them on sandwich walls e g a container or walls of unknown composition In these cases the most suitable fastening system for the special material must be used If the above mentioned optional kit is not used suitable anti vibra tion mounts must always be fitted between the condens ing unit and the mounting brackets to avoid the trans mission of vibrations Also make sure that the brackets used are suitable for supporting the condensing unit in all conditions e g in case of temporary abnormal loads on the unit 2 6 Refrigeration connections THIS OPERATION MUST BE CARRIED OUT BY AN EX PERT TECHNICIAN The condensing and evaporating units are pre charged with Nitrogen and have to be charged with refrigerant see Chap 7 2 2 Refrigerant charging a Pipeline positioning Connect the air conditioner to the condensing unit using re frigerant lines in hard or soft copper Limit the number of pre shaped bends If this is not possible every bend must have a radius of at least 100 mm The gas line must be insulated The liquid line must be kept away from heat sources If this is not possible it has to be insulated If the condensing unit is located above the evaporating unit the last segment of the suction line insulated pipe work must be inclined towards the condensing unit If on the other hand the condensing unit is located below the air con
14. are working correctly e Make sure that the temperature is controlled and the compressor and the heaters optional work when re quired e Make sure that the condensing unit fan speed controller regulates the fan operation only on HPSCxxA L mo dels 3 2 Start up with low outside tempera ture only on HPSCxxA L models In case of low outside temperature lt 0 C the unit start up is helped by the delay time of the low pressure alarm within which the pressures in the refrigerating circuit reach the stan dard operation values 3 3 Self test The self test function is possible only when a unit has the re mote or local display installed The self jeet function per forms a sequential automatic check of components such as the compressor fan heaters Freecooling damper alarm relay and warning relay This eliminates the need for manual control and leads to a remarkable decrease in the time needed for starting the unit with the ability to carry out a quick check of the main components for the correct conditioner operation pag 3 3 4 Starting and stopping For the units provided with the POWERFACE control you can switch on off using the main switch For the units provided with HIROMATIC interface e Start up the unit by pressing the Hiromatic ON OFF push button confirmed by SYS ON on the display e Stop the unit by pressing the Hiromatic ON OFF push button confirmed by SYS OFF on the disp
15. avoid stress and any impact to its internal components The indoor unit can be installed in any indoor location provided it is not exposed to an aggressive environment e g acid vapours Position the internal evaporating unit HPSE so as to op timise the indoor air distribution and avoid hot spots e Position the indoor unit preferably in the centre of the room ceiling e Fix the unit to the ceiling by inserting expansion or through clamps in this case ensure the clamp is sealed using the slots on the two side brackets see Fig 2a Fig 2b and Fig 2c e Make sure the circulates freely To allow the servicing of the unit the Service Area shown in Fig 2a and Fig 2b has to be left unobstructed in Fig 2a the 300 mm minimum clearance from the back of the evaporating unit is compulsory e Check if the unit is horizontal on both sides A and B see Fig a Fig a Horizontal level control 2 3 Positioning two inner HPSE units The ceiling installation of two units operating in the same room must be carefully evaluated considering the following factors 1 each intake side of the machine must be able to intake as much as the other two 2 possible Freecooling function 3 the thermal loads to be dissipated can be true hot air flows hitting the intake sides of the machines in this case the two intake sides of the two machines can be arranged even ata short distance up to 300 mm to intake th
16. by the conditioner motor operation is rejected through condensing coil located in the external condensing unit and cooled with outside air by the condenser fan For the operation logic of the controls see chapter 5 Heating optional Heating of the air is achieved by means of electric heaters located in the air flow and activated according to the logic set on the controls see chapter 5 Freecooling optional When the temperature of the outside air is sufficiently below that of the inside air it is possible to use this difference to pro vide cooling inside the room by direct intake of the outside air i e without using the compressor In this way it is possible to achieve considerable energy savings When the required conditions occur the servo motor managed by the Power Face control opens the modulating damper which separates the flow of the inside air and outside air Outside air drawn into the room by the fan is exhausted through an overpres sure damper which is installed on an outside wall of the room and is protected by an external rainproof grille The degree of opening of the damper is determined as a function of the temperature set point and the return air temperature 4 1 Control of the condenser fan speed HPSCxxA models only A sensor is positioned so as to detect the condensing pres sure of the refrigeration gas On the basis of this information an electronic device Variex modulates the fan speed
17. 2 5mm 2 x 2 5mm T x 2 5mm T x 2 5mm 48VDC Differential current protection switch An 0 03A Emergency freecooling unit version 2 poles 4 poles Main line power supply 230V 1Ph 50Hz 400V 3Ph 50Hz N Unit EFC DC line power supply 48VDC EFC DC line Cable sizing main line main line main line 2 x 2 5mm T x 2 5mm 4 x 2 5mm 2 x 2 5mm T x 2 5mm T x 2 5mm Notes e cables have to be sized in compliance with local standards and according to the type and characteristics e g Amperes of installation e The specific power of the user installed switch must be lower than 300 000 A x s e Prescriptions on the differential relay required to the user e for special places healthcare facilities etc comply with the local regulations e For ordinary places low sensitivity is suggested 30 mA coordinated with the value of the ground heater 364 Ra lt 50 Art 413 1 4 1 64 8 e In case of frequent over voltages with mains impulse it is advisable to install a selective differential and to evaluate the need for adopting other devices pag 15 Tab 8 Settings Component STOP 1 0 bar Low pressure switch LP START 2 0 bar fixed settings Automatic reset STOP 28 0 bar Manual reset pressin High pressure switch HP START 20 0 bar the push Le 9 b fixed s
18. 24 30 R H 80 R H Outdoor conditions Indoor conditions with compressor running 34 o 4096 R H 30 C 40 R H 40 C 5 R H 55 C 90 R H Storage conditions Sound pressure level Outdoor sound pressure level 1 52 5 Indoor sound pressure level 62 5 Standard electrical features Compressor AC power input 2 3 06 Compressor AC operative current OA 2 5 5 Compressor AC max current FLA 7 0 Compressor AC starting current LRA 46 0 Condenser fan AC power input 2 0 22 Condenser fan AC max power input 0 48 Condenser fan AC operative current OA 2 1 5 Condenser fan max current FLA 2 8 Condenser fan AC max current FLA 3 3 Evaporator fan AC power input 2 Evaporator fan AC operative current OA 2 1 5 Evaporator fan AC max current FLA 9 2 0 Evaporator fan AC starting current 2 7 Electric heating optional Heating capacity I 3 0 Heating max current Standard Operating Amp re Full Load Amp re Locked Rotor Amp re Maximum outdoor temperature referred to 30 C 35 R H indoor unit air suction HPSE 5 Conditions referred to the suction sections of the inner unit HPSE the min indoor temperature is referred to 3096 of indoor relative humidity and to the mi
19. 50 m Equivalent lengths m of curves shut off and non return valves Nominal diameter mm 18 b Evacuation of the refrigerant lines The evacuation operation must be carried out with a special quality vacuum pump using the 1 4 SAE connectors lo cated on the unit on off valves 2 7 Condensate drain connection During the cooling cycle part of the moisture in the air con denses on the evaporating coil The condensate is collected in the tank fitted under the coil and must be drained outside Tab d Condensate drain connection CONNECTOR DIMENSIONS Condensate drain d 21mm To drain the condensate Use galvanized steel PVC or flexible polythene pipe e CAUTION DO NOT INTERCONNECT THE OUTLETS OF DIFFERENT MACHINES e Make sure there is at least a 2 gradient towards the drain outlet here must bea drain trap placed at least 30 mm below the drain tank e Fill the drain trap with water by pouring it into the conden sate tank 2 8 Electrical connections and wiring diagram supplied with the unit For the electric connections of the indoor units HPSE and outdoor units HPSC refer to Fig 5 Fig 6 and Fig 7 Before connecting or disconnecting the fast couplers be tween the indoor unit and outdoor unit make sure that the main switch is in the OFF position and that electrical components are not damaged e all terminal screws a
20. C max power input 0 48 Condenser fan AC operative current OA 2 1 5 Condenser fan AC max current FLA 2 8 Condenser fan AC max current FLA s 3 3 Evaporator fan AC power input 2 Evaporator fan AC operative current OA 2 2 8 Evaporator fan AC max current FLA 9 2 4 Evaporator fan AC starting current 5 3 Electric heating optional Heating capacity I 3 0 Heating max current OA Standard Operating Ampere FLA Full Load LRA Locked Rotor Ampere Notes The emergency cooling option EFC is required Maximum outdoor temperature referred to 30 3596 indoor unit air suction HPSE p Conditions referred to the suction sections of the inner unit HPSE the min indoor temperature is referred to 3096 of indoor relative humidity and to the min outdoor temperature for higher relative humidity and or outdoor temperatures the min indoor temperature is higher than the table data 1 Measured with 35 C outdoor temperature at 2m far from the unit free field conditions 2 Indoor reference conditions 30 C 35 at the HPSE indoor unit air suction sides 35 C outdoor Nominal power supply 3 It refers to nominal speed Factory setting pag 13 Tab 6 50Hz Technical data for FREECOOLING and 48Vdc EMERGENCY FREECOOLING unit versions FC and EFC DC coupled wi
21. LNOHH GE 991 suonoeuuoo 9 UI jenno MIA 2015 1 ul 026 jenno UG L L M3lA avid 1 0 OSdH Du pag 22 Fig 2 Fig 2a Installation Evaporating unit ceiling installation HPSE 06 08 10 12 14 version without freecooling 310 HPSE 06 08 10 375 HPSE 12 14 Service area for electical board min 200 803 HPSE 06 08 10 903 HPSE 12 14 min 300 pag 23 Fig 2b Evaporating unit installation 06 08 10 12 14 version with freecooling min 200 board n Service area for electical PLLA Service area for Freecooling filter A 06 300 08 10 12 14 min 300 B SEN Ke LL dE di pag 24 Fig 2 Evaporating unit ceiling installation HPSE 06 08 10 12 14 version with freecooling CODE CODE DESCRIPTION HPSE 06 HPSE 08 10 12 14 Wall plate for circular ducts 2 flexible ducts with fixing clamps L 0 5 m Fixing gamps ll ll pag 25 Fig 2d Condensing unit wall installation COD 129201 NN ANN N N 2 SN NN UN lt MASSA Fig 3 Condenser positions EH pag 27 Fig 4 Service area HPSC 06 08 10 12 14 WALL IN FRONT OF UNITS
22. Liebert HIROSS SERVICE MANUAL Cod 273000 Rev 16 02 2006 Issued by T D Service Caution Recommendations the manual is retained for the entire service life of the machine the user reads the manual carefully before carrying out any operations on the machine e the machine is used exclusively for the purpose for which it is intended incorrect use of the machine shall release the manufacturer from any liability This manual has been prepared to enable the end user to carry out only the operations that can made with the panels closed Any operations that require the opening of doors or equipment panels must be carried out only by qualified personnel Each machine is equipped with an electric isolating device which allows the operator to work in conditions of safety This device must always be used to eliminate risks during maintenance electric shocks scalds automatic restarting moving parts and remote control The panel key supplied with the unit must be kept by the person responsible for maintenance For identification of the unit model and serial no in case of the necessity for assistance or spare parts read the identification label placed on the outside and inside of the unit IMPORTANT This manual may be subject to modification for complete and up to date information the user should always consult the manual supplied with the machine ORENSE amp Gm 9 9 Liebert N HIROSS Atte
23. al heating Cooling and heating unit gt Heating Setpoint Cooling C Dead Band Cooling and heating unit with Dead band gt Band gt Band Heating Set point Cooling 5 3 Unit with freecooling 5 3 1 Control logic The control algorithm is based on single stage regulation for the heating and mechanical cooling compressor with modulating proportional integral control for the Freecooling see Fig c The control manages all of the compressor ac tivation delays as we have seen in the 2 previous cases in order to guarantee the proper operation and to extend its life The activation of the Freecooling mode occurs as a function of the difference that can be set between the inside tem perature and the outside temperature This means that if the difference between the two temperatures increases beyond the set value the unit automatically initiates the Freecooling function the compressor is deactivated and an analogue output controls the 3 point servomotor of the damper The damper opening is determined as a function of the difference between the outdoor and indoor temperatures and as a func tion ofthe intake air temperature which cannot be lower than a preset safety value If the indoor temperature exceeds the proportional band by more than 2096 for over 10 minutes the unit reverts to compressor aided cooling and t
24. asure the temperature of the suction line in the point where the bulb of the thermal expansion valve is fastened in case of HPSCxxA L version unit in the compressor inlet in case of other versions Detect the evaporation pressure gauge temperature from a pressure gauge placed on the compressor suction Subtract the obtained temperature value from the one measured in point a The difference is the superheat value pag 6 7 2 3 R407C refrigerant units 7 2 3 1 Features of the refrigerating fluid R407C At standard temperature and pressure it is a colourless gas with low toxicity non flammable and it has an allowed ex posure limit value AEL TLV corresponding to 1000 ppm av erage value measured on 8 hours day In the event of leak age air the room before use Tab e R407C refrigerant charge Internal External unit unit kg HPSC 060 HPSC 06A HPSC 061 HPSC 080 HPSC 08A HPSC 081 HPSC 080 HPSC 08A HPSC 081 HPSC 10A HPSC 10L HPSC 10A HPSC 10L HPSC 12A HPSC 12L HPSC 14A HPSC 14L R407C charge HPSE 06 Only cooling FC EFC HPSE 08 Only cooling HPSE 08 HPSE 10 Only cooling HPSE 10 EFC HPSE 12 Only cooling FC EFC HPSE 14 Only cooling FC EFC IMPORTANT The charges indicated in Tab e refer to a 2 m length for the gas and liquid pipes Tab f shows the indications for longer measures on the additional charge in grams of refrigera
25. ditioner it is advisable to create a trap on the suction line Tab a HPSCxx0 A external standard diameters for external refrigerant pipelines R407C Equivalent length Cooling capacity drop vs the std installation 2m HPS100 A 2m lt L lt 10m 18 1 12 1 296 with 10 m HPS120 A 2m lt L lt 10m 18 1 12x1 496 with 10 m HPS140 A 2m L 10m 918x1 12 1 596 with 10 m Tab b HPSCxxL external standard diameters for external refrigerant pipelines 407 Equivalent length Cooling capacity drop vs the std installation 2m HPSO6L HPSO8L HPS10L HPS12L HPS14L pag 2 2m lt L lt 10m 10m lt lt 20 20m lt lt 30m 30m lt L x 40m 40m lt L x 50m am Lzx 10m 10m L lt 20m 20m lt L lt 30m 30m lt L x 40m 40m lt L x 50m 2 lt lt 10m 10m L x20m 20m lt lt 30m 30m lt L x 40m 40m lt L x 50m 2 lt lt 10m 10m L x20m 20m lt lt 30m 30m lt L x 40m 40m lt L x 50m 2m lt lt 10m 10m L lt 20m 20m lt L lt 30m 30m lt L x 40m 40m lt L x 50m 196 with 10 m 496 with 20 m 396 with 30 m 596 with 40 m 696 with 50 m 396 with 10 m 396 with 20 m 596 with 30 m 696 with 40 m 396 with 50 m 296 with 10 m 396 with 20 m 596 with 30 m 696 with 40 m 796 with 50 m 496 with 10 m 396 with 20 m 496 with 30 m 596 with 40 m 296 with 50 m 596 with 10 m 396 with 20 m 596 with 30 m 296 with 40 m 396 with
26. e Evaporator fan Filter dryer Sight glass FG 10 Thermostatic expansion valve 11 Evaporator 12 Low pressure switch LP 13 Shut off valve 14 Fan pressure switch control 15 Liquid receiver Opt L Digit 16 Safety valve Opt L Digit 17 Shut off solenoid valve Opt L Digit pag 36 E Fig 11 Suggested refrigerant connections HPSCxx0 A HPSE Gas pipeline Sloping 196 Liquid pipeline HPSE HSC External Unit HRH Syphons obligatory Gas pipeline Sloping 196 HPSC External Unit O c D DO 85 SE Gas pipeline Sloping 1 T x gz 0 HPSE Internal Unit Liquid pipeline 7 m max horizontal equivalent length Gas pipeline Sloping 1 T HPSE Internal Unit distance between two syphons B 5 m max vertical Gas pipeline Sloping 196 amp j Liquid pipeline HPSC d External Unit A NOTE Max equivalent length for refrigerant line A B 10m pag 37 Fig 12 Suggested refrigerant connections HPSCxxL HPSE Gas pipeline Sloping 196 a Liquid pipeline HPSE HPSC Internal Unit External Unit Lamm horizontal equivalent engh Syphons obligatory Gas pi
27. e ther mal load where it is highest 2 4 Freecooling duct connections optional The air conditioner may be supplied with an integrated Free cooling device optional which uses fresh air from outside to coolthe room without starting up the compressor The device provides the correct cooling capacity required using a motorised modulating damper In this case the rear of the unit is equipped with connections which draw in the outside air as follows e double circular holes for 202 mm HPSE 06 or 252 mm HPSE 08 10 12 14 diameter flexible ducts to be fixed with metal clamps e single rectangular hole with flange for 560x190 mm HPSE 06 or 600x250 mm HPSE 08 10 12 14 duct not supplied by Liebert HIROSS In both cases the holes in the wall have to be protected by rainproof grilles with a prefilter to avoid water or foreign bodies getting into the conditioner Outside air taken into the room by the fan is exhausted through an overpressure damper which is installed on the wall ofthe room and protected by an external rainproof grille 2 4 1 External air temperature probe installation Install the external air temperature probe at the end of the freecooling duct IMPORTANT The bulb must be positioned as much outside as possible but must not be exposed to direct sunlight or weather agents such as rain or snow The unit operation could be jeopardized if these precautions are not applied 2 5 Po
28. erative current OA 2 Evaporator fan AC max current FLA 9 Evaporator fan AC starting current Electric heating optional Heating capacity Heating max current OA Standard Operating Ampere FLA Full Load LRA Locked Rotor Ampere Notes Maximum outdoor temperature referred to 30 C 35 R H indoor unit air suction HPSE Conditions referred to the suction sections of the inner unit HPSE the min indoor temperature is referred to 3096 of indoor relative humidity and to the min outdoor temperature for higher relative humidity and or outdoor temperatures the min indoor temperature is higher than the table data 1 Measured with 35 C outdoor temperature at 2m far from the unit free field conditions 2 Indoor reference conditions 30 C 35 at the HPSE indoor unit air suction sides 35 C outdoor Nominal power supply 3 It refers to nominal speed Factory setting pag 9 Tab 2 unit versions FC and coupled with HPSCxx0 Operating limits 50 Hz Technical data for FREECOOLING and 230V 1Ph 50Hz EMERGENCY FREECOOLING Main power supply voltage 230V 10 1Ph 50Hz 400V 10 3Ph N PE 50Hz Emergency power supply voltage 230V 10 1Ph PE 50Hz with emergency cooling C Outdoor conditions 7 10 48 45 Indoor conditions with compressor running
29. ettings p SET 25 0 bar Fan speed controller BV BANDA P 3 8 bar only for HPSCxxA L configuration unit for the adjustment refer to the instruc tions supplied with the machine Tab 9 Fire proof classification of electrical electronic components according to UL 94 normative vertical burning Electrical electronic components Fire proof classification Contactors Automatic switches Cables PC Board PowerFace HP and LP pressure switches Clogged filter Terminal block for internal unit HPSE Terminal block for external unit HPSC Ducts Soft Starter Connectors Auxiliary relais Electrical heater safety thermostat Sensors Servomotor pag 16 UOnoeuuoo 0028 SIJe OO Z N NOISH3A SLONG LNOYS uonoeuuoo eonoe 3 C LXD 51058 N GE H 099 061 098 NOISH3A LONG 1 238 1 4 08 MIA 401 UIGID ojesuepuo 2 016 3GIS LH9IWH M3IA 3GIS 1331 YUM UOISJBA 90 3SdH suoisuauiip 614 pag 17 uonoeuuoo GE H 09609 SJe OO Z N NOISu3A SLONG LNOYS
30. he Freecoo ling mode remains de activated for 5 hour If the inside temperature exceeds the proportional band by more than 5096 for over 2 minutes the Freecooling mode is vated for 1 hour and the unit reverts to cooling by means of the refrigeration circuit Fig c Compressor heater and damper opening operation Freecooling mode Heating Set P Band Cooling cooling mode Compressor Heating Set Cooling 5 4 LAN local network management Stand by and Cascade modes The control of the units in stand by can be completely auto matic thanks to the possibility of connection with the Power Face control A unit in stand by is automatically activated in case of an alarm causing the main unit to lock out This also occurs if the main unit is switched off or disappears from the system due to a failure on the control connecting network bus Rotation of the stand by units can be set to occur automatically every 24 hours so as to enable an even wear of the system components If the system is connected to a Hiro matic interface itis possible to set timed daily or weekly rota tion functions When the Cascade function is activated if sev eral units are simultaneously on with the same Set Point the temperature used for the control is the average of those de tected In mechanical cooling mode the proportional semi band is divided by the number
31. in order to keep the condensing pressure within the permitted range In this way besides optimizing the compressor oper ation you can have a reduction of the sound pressure level mainly during the night easier start up of the compressor at low temperatures and some energy saving For the calibration of the speed controller refer to chap 6 4 2 Emergency cooling optional 4 2 1 Emergency cooling 48VDC With the 48VDC emergency cooling option the evaporator fan freecooling damper actuator and controls are always supplied at 48VDC while the compressor the condenser fan and the heaters are connected to the AC mains If the AC mains supply fails the conditioner does not stop but con tinues to circulate the air activating the Freecooling as soon as the relevant conditions are reached automatically optim ized in the event of mains failure IMPORTANT For proper operation the unit must always be fed by 48VDC 4 2 2 Emergency cooling 230VAC 50Hz In case of AC mains failure the evaporator fan freecooling damper actuator and controls are supplied by a second 230V 1Ph 50Hz supply arranged by the user UPS gener ator ensuring operation in the same way as the 48VDC ver sion CAUTION For safety reasons open the main switch 5 Operating logic The different unit versions feature different automatic operat ing logic as described below 5 1 Cooling only unit 5 1 1 Control logic The control a
32. is included if necessary clean or replace them To replace the filters for the recirculation air e Rotate the two filter locking fasteners securing each filter e Remove the filters e Fit the spare parts AIR FILTERS Lock the filters by rotating the two fasteners in the opposite direction to secure each To replace the filter for the freecooling air if this option is included e Remove the unit lower panel e Remove the fastening bracket and pull the filter vertically downwards e Fit the spare part e Reposition the bracket and close the panel ELECTRICAL CIRCUIT Check the power supply on all phases e Ensure that all electrical connections are tight REFRIGERATION CIRCUIT e Check the evaporating pressures to be performed by a refrigeration technician e Check the compressor current absorption the head pressure and the presence of any unusual noise e Ensure that there is no ice formation on the evaporator 7 2 Extraordinary maintenance CAUTION If you need to intervene immediately after the A unit stops wait 5 minutes before accessing the inner parts as you could get burnt 7 2 1 Check of the system vacuum and leaks NOTE Before proceeding recover all the refrigerant according to the local laws 1 Switch the unit off main switch on OFF 2 Remove the panels necessary for inspecting the refriger ating circuit 3 Connect a high efficiency vacuum pump to the needle
33. lay 4 Operation The unit operation is completely automatic The sequence below explains with the assistance of Fig 8 Operation diagram how the unit operates see also Fig 9 and Fig 10 Refrigerating circuit 1 The temperature sensor positioned inside the HPSE evaporating unit informs the control about the condition of the return air 2 The control compares the information received with the programmed Set Point value minimum indoor tem perature and Proportional Band and Differential in the versions with optional Freecooling activating the condi tioner s air treatment modes as follows Cooling Fig 8a After switching the unit on the evaporator fan starts immedi ately whereas the compressor is started only when the tem perature ofthe room to be conditioned exceeds the set value In the HPSCxxA L unit versions the condensing unit fan starts automatically if the condensing pressure increases control through Variex while in the other versions the fan s is are controlled by a pressure switch ensuring a limit lower than the condensing pressure The air taken in by the evapor ator fan enters the unit through the side intakes passing through the filters and then reaches the evaporator The cold refrigerant flows inside the evaporator pipes thus cooling the air passing through it The treated air is conveyed into the conditioned room through the supply outlet The heat taken from the room and that generated
34. lgorithm is based on single step regulation for the mechanical cooling i e compressor start stop The con trol manages all the activation delays ensuring correct oper ation and extending the operating life as much as possible Fig a Operation of the cooling only unit unit Cooling only Set Cooling C 5 2 Unit with electric heating 5 2 1 Control logic For the heating and cooling version the control algorithm is based on single step regulation for the electric heating and single step regulation for the compressor mechanical cool ing The control manages all of the compressor activation delays as previously described ensuring its correct oper ation and maximising run times 5 2 2 Dead band In this version the Dead band parameter in the optional devices menu of the PowerFace microprocessor control is very important enabling the heating semi band to be shirted by inserting a non sensitive area ventilation only between the set point temperature and the start of the heat ing semi band see Fig b In this way without having to alter the proportional band the electric heating can be acti vated at lower temperatures according to the value set for the dead band compared to the standard setting conse quently reducing the energy consumption of the heaters and optimizing their operation according to the site requirements pag 4 Fig b Unit operation with electric
35. n outdoor temperature for higher relative humidity and or outdoor temperatures the min indoor temperature is higher than the table data 1 Measured with 35 C outdoor temperature at 2m far from the unit free field conditions 2 Indoor reference conditions 30 C 35 at the HPSE indoor unit air suction sides 35 C outdoor Nominal power supply 3 It refers to nominal speed Factory setting pag 12 Tab 5 50 Hz Technical data for FREECOOLING and 230V 1Ph 50Hz EMERGENCY FREECOOLING unit versions FC and EFC AC coupled with HPSCxxA L Operating limits 230V 1090 1Ph 50Hz 400V 1096 50Hz Main power supply voltage 230V 10 1Ph PE 50Hz with emergency cooling C 30 C 52 50 24 30 R H 80 Emergency power supply voltage Outdoor conditions Indoor conditions with compressor running 35 40 30 40 40 5 R H 55 90 Storage conditions Sound pressure level Outdoor sound pressure level 7 52 5 Indoor sound pressure level 62 5 Standard electrical features Compressor AC power input 2 3 06 Compressor AC operative current OA 2 5 5 Compressor AC max current FLA 7 0 Compressor AC starting current LRA 46 0 Condenser fan AC power input 2 0 22 Condenser fan A
36. n 6 3 UI UI N Board TM 48 Fast m SCHEDA TM4B 04 09 6 A2 eg odo peueeauos sejod g eiqeo OL eui A 243 JO UOISI A 1 01 80 90 3SdH 92 Du 33 Fig 8 Operating diagram Fig Operating diagram without freecooling CROSS SECTION km Return air lt lt 1 Treated air ITEM DESCRIPTION Evaporating coil Fig 8b Operating diagram with freecooling a Fx Freecooling ya 7 air CROSS SECTION kam Freecooling air Return air lt lt 1 Treated air TOP VIEW WITHOUT PANEL pag 34 Fig 9 HPS 06 08 HPSCxx0 Refrigerating diagram Internal unit ___ Connection pipe lt GR P VE d 4 16 4 External unit pag 35 Fig 10 HPS 06 08 10 12 14 HPSCxxA L Refrigerating diagram Internal Supplying limit EJ 624 6 A TADEG 02 E _ 2 External unit DESCRIPTION Compressor Crankcase heater High pressure switch HP Air cooled condenser Weld joint Access valv
37. nd referred to free field conditions 1 4 Conditioner inspection On receiving the equipment immediately inspect its condi tion report any damage to the transport company at once 1 5 Transport e Always keep the unit vertically upright and do not leave itin the open e While carrying the unit avoid exerting any pressure on the upper corners of the package e Unpack the unit as close as possible to its installation position Once unpacked avoid any impact to its internal components 1 6 Sealing the room To create stable thermohygrometric conditions within the room proceed as follows vapoursealthe walls floor and ceiling using an imperme able material e make sure that the room is airtight by sealing all gaps cable entries etc 1 7 Servicing areas The unit must be provided with a suitable service area see Fig 4 All maintenance of the evaporating unit can be carried out as shown in Fig 2a and Fig 2b Access to the condensing unit is provided by removable pan els with screw fixings 2 Installation CAUTION The evaporating unit HPSE must never be installed out doors 2 1 Overall dimensions See Fig 1a Fig 1b Fig 1c Fig 1d Fig 1e and Fig 1f for the overall dimensions of the evaporating unit HPSE and external condensing unit HPSC 2 2 Positioning the HPSE indoor unit e Unpack the unit as close as possible to the place where it has to be installed Once unpacked
38. nditioner check if the power supply voltage and frequency comply with those on the identifica tion plate of the unit After this it is possible to power the unit by operating the main switch For units equipped with Power Face microprocessor control it is possible to start and stop the unit by following the instructions given below For units equipped with POWERFACE interface only e The unit is started by pressing the main switch ON e The unit is stopped by pressing the main switch OFF For units equipped with a local or remote display interface e The unit is started by pressing the switch with LED e The unit is stopped by pressing the switch with LED For units supplied with a HIROMATIC interface e Start by pressing the ON OFF push button on the Hiro matic confirmed by SYS ON on the display e Stop by pressing the ON OFF push button on the Hiro matic confirmed by SYS OFF on the display IMPORTANT In both cases it is extremely important to consider the status of the digital input to the PowerFace microprocessor control managing the unit ON OFF see relevant handbook and wir ing diagram Indeed for the unit to start operating on the unit main switch or on the ON OFF button of the HIROMA TIC interface the digital input must be bridged see wiring diagram Check that there are no active alarms wait until the system reaches the standard operation and then make the following checks Check that the fans
39. nt 407 by each pipe meter of the gas and liquid lines accor ding to the diameters indicated in Tab a Tab f Additional charge in grams of refrigerant R407C by meter of each line Liquid line Gas line Add charge R407C g m Add charge R407C 27 pipeline mm pipeline mm The oil to be used when topping up is EMKARATE RL 32 3MA or MOBIL EAL ARTIC 22 if it s unavailable use an oil with the same characteristics see Tab g and Tab h NEVER MIX DIFFERENT OILS TOGETHER CLEAN THE PIP ING COMPLETELY BEFORE CHANGING THE TYPE OF OIL USED EMKARATE RL 32 3MA oil viscosity at 40 C viscosity at 100 viscosity index ISO Grade Tab h MOBIL EAL ARTIC 22CC oil approx specific weight at 15 C 0 99 flash point C O C 245 C pour point lt 54 viscosity index 116 viscosity at 40 23 6 CST viscosity at 100 C 4 7 CST 7 3 Dismantling the unit The machine has been designed and builtto ensure continu ous operation The working life of some of the main components such as the fan and the compressor depends on their maintenance If the unit has to be dismantled this must be done by skilled refrigerator technicians Therefrigerating fluid and the lubricating oil in the circuit must be disposed of in conformity with the laws in force in your country 7 4 Spare parts We recommend the use of original spare parts When
40. ntion data relevant to the unit supplied is indicated on the inboard label see the blank facsimi Manufactured at via Leonardo da Vinci 8 le below TP 35028 Piove di Sacco Padova Italy Data in the manual is referred to standard conditions and can be modified without any advance notice 1 Compressor Full Load Ampere A sa3umaa292268086 MODEL SERIAL N 2 Compressor Locked Rotor Ampere A 3 Compressor quantity 4 Evaporator fan Full Load Ampere A 5 Evaporator fan Locked Rotor Ampere A COMPRESSOR FLA 6 Evaporator fan quantity 7 Condenser fan Full Load Ampere A FAN MOTOR 8 Condenser fan Locked Rotor Ampere A FLA Condenser fan quantity FAN MOTOR FLA eo Electrical heating Ampere QECRC k Electrical heating steps EL HEATER 12 Humidifier Ampere a STAGES 13 Steam production capacity HUMIDIFIER 14 Max unit AC Ampere A STEAM OUTPUT Gen 15 Max unit DC Ampere TOTAL FLA ec TOTAL FLA de 16 Rated peak withstand current 19 7 A A 49 17 Rated short time current REFRIGERANT 15 17 18 Refrigerant type R 19 High pressure switch Stop 20 High pressure switch Restart HIGH PRESS SWITCH MANUAL 21 Low pressure switch Stop SET Bar N N Low pressure switch Restart LOW PRESSURE SWITCH SET Bar N G Min room operation temperature N A Max room operation temperature OPERATING AIR TEMPERATURE N Min room operation humidity
41. of units in the system in order to share the total available cooling capacity The activation of the Freecooling mode if installed is sequential on the differ ent units forming the system and precedes the possible ac tivation of compressor for mechanical cooling Fig d shows an example illustrating the operation of a sy stem formed by three units Fig d System with 3 units in cascade PowerFace control Freecooling mode P Band Y 2 Y 1 Y Heating Set Cooling Compressor cooling mode P Band Y 1 DR 3 Heating Cooling 5 5 Alarm control Two sets of alarm contacts each n c or n o are available on the terminal board of the electrical panel board for 1 General Alarm highest priority including e Compressor alarm high and low pressure e Sensor fault e Memory fault e Evaporator fan fault 2 General Warning lowest priority including e High temperature Low temperature A further General Warning is available in the unit equipped with heating signalling the following abnormal condition e Electrical heater fault NOTE e Analarm causes the unit to stop and the unit in stand by if available to intervene e A warning does not stop the unit Both the alarm and the warning activate visual and aud ible indication on unit with Hiromatic e Both the alarm and the warning mu
42. or Ampere Notes The emergency cooling option EFC is required Maximum outdoor temperature referred to 30 3596 indoor unit air suction HPSE p Conditions referred to the suction sections of the inner unit HPSE the min indoor temperature is referred to 3096 of indoor relative humidity and to the min outdoor temperature for higher relative humidity and or outdoor temperatures the min indoor temperature is higher than the table data 1 Measured with 35 C outdoor temperature at 2m far from the unit free field conditions 2 Indoor reference conditions 30 C 35 at the HPSE indoor unit air suction sides 35 C outdoor Nominal power supply 3 It refers to nominal speed Factory setting pag 14 Tab 7 Differential current protection switch Differential current protection switch 50Hz unit versions cooling only 0 03A cooling heating and freecooling 2 poles 4 poles Cable sizing Unit power supply 230V 1Ph 50Hz 400V 3Ph 50Hz N 2 x 2 5mm T x 2 5mm 4 x 2 5mm T x 2 5mm Differential current protection switch 230V 1Ph 50Hz An 0 03A Emergency freecooling unit version 2 poles 4 poles Main line power supply 400V 50Hz N 230V 1Ph 50Hz Unit line power supply 230V 1Ph 50Hz N line Cable sizing main line main line main line 2 x 2 5mm T x 2 5mm 4 x
43. peline Sloping 196 HPSC External Unit Gas pipeline Sloping 196 amp 1 5 m max vertical distance between two syphons HPSE Internal Unit Liquid pipeline 30 m max horizontal equivalent length Gas pipeline Sloping 196 HPSE Internal Unit distance between two syphons 5 m max vertical Gas pipeline Sloping 196 m Liquid pipeline HPSC External Unit 30 m max horizontal equivalent length pag 38 3 m max vertical distance 15 m max vertical distance Fabbricante dichiara che questo prodotto conforme alle direttive Europee The Manufacturer hereby declares that this product conforms to the European Union directives Der Hersteller erkl rt hiermit dass dieses Produkt den Anforderungen der Europ ischen Richtlinien gerecht wird Le Fabricant d clare que ce produit est conforme aux directives Europ ennes Fabricante declara que este producto es conforme a las directivas Europeas O Fabricante declara que este produto est em conformidade com as directivas Europeias Tillverkare f rs krar harmed att denna produkt verensst mmer med Europeiska Uniones direktiv De Fabrikant verklaart dat dit produkt conform de Europese richtlijnen is Vaimistaja vakuuttaa t ten ett tama tuote t y tt seuraavien EU direktiivien vaatimukset Produsent erkl rer herved at dette produktet er i samsvar med EU direktiver
44. placing an order please refer to Component List en closed with the machine and specify the unit model and serial no pag 7 8 Appendix 8 1 Check the unit after the installation The following list includes the checks to carry out to verify that HPS is intact after the installation IMPORTANT EVERY UNIT IS TESTED IN OUR PLANTS BEFORE DELIVERY A STATIC CHECK Evaporating unit HPSE A 1 a A 1 b A 1 C A 1 d 1 A 1 f 1 A 1 h Sight check that the panels and rivets are in tact and well fixed Checkforthe presence of a condensate drain for each machine and of the discharge pipe supplied separately Check that the optional Freecooling air in take ducts rigid or flexible and the rainproof external grille with metallic prefilter optional are available and fixed Check that the unit is fixed firmly to the ceiling or to the wall and that any fastening devices passing along the walls of the room to be conditioned are sealed Put the electrical board of the room in the OFF position Check for the correct connection of the sup ply cables and of the Bus cable between the PowerFace card and the remote display or between the PowerFace and Hiromatic if in stalled optional Check the fastening of cables electronic components and fuses Check the correct position of the air filter A 2 Motor condensing unit HPSC 2 A 2 b A 2 C A 2 d
45. re tight thesupply voltage and frequency are as indicated on the unit there are no live components IMPORTANT The 48 Vdc supply in the version Emergency Free Coo ling must be delivered through a shielded cable with the connection of the shielding braid on the evaporating side The signal connection cable between the evaporating unit and the condensing unit must be shielded with the connec tion of the shielding braid on the evaporating side 2 9 User interface The standard control system on HPS is based on a micropro cessor board mounted inside the electrical panel which can be connected to a user interface remote display that can be positioned inside the room as required The user interface remote display when installed is mounted in a painted metal box and connected to the air conditioner using a multi pole screened cable optional accessory 2 10 Emergency cooling version EFC 48 VDC 230 VAC When this option is used install the supply cable as described in the electrical diagram In the 48VDC units respect the polarity and 2 11 Electrical protection CAUTION For the electrical protection of the conditioner an adequate switch with current protection must be installed in the power supply line For the selection of the disconnect switch please refer to Tab 7 3 Starting and stopping 3 1 First start up or after a long halt Before starting the air co
46. sitioning the HPSC condensing unit Available condensing unit versions HPSC 0 base version HPSC advanced version HPSC L long piping version see Fig 12 The condensing unit must be positioned outside to en able its cooling see Fig 3 It is connected to the air conditioner through the re frigerant pipelines Keep the refrigerant lines as short as possible and anyway follow the indications in Tab a Tab b Fig 11 and Fig 12 considering that in stallations with equivalent length of the refrigerant pipelines over 10 m are possible only for HPSCxxL units Install the condensing unit in a level position able to bear its weight and vibrations and away from contaminating agents e g dust leaves to ensure the best efficiency over time Avoid any place containing flammable gases If different locations are available preferably install the condensing unit in places sheltered from rain with suit able air circulation and not subject to strong sun expo sure the latter precaution enables performance opti misation and compliance with the operating limits For in stallations in places with wind speeds over 5 m s e g building tops consider that such conditions can offer re sistance to the air outlet from the condensing unit reduc ing the air delivery and thus the heat exchange capacity or they can make the fan run too fast jeopardizing its oper ation as well as increasing the hazard of the machine tilt
47. st be reset manually on the PowerFace or Hiromatic if installed Should the thermofuse intervene the electrical heaters must be replaced 6 Settings e The air conditioner has already been factory tested and set as described below see Tab 8 For the microprocessor control settings please refer to the relevant manual to avoid incorrect operation do not use temperature and relative humidity set points or pro portional bands which differ excessively from the stan dard settings pag 5 7 Maintenance Spare parts For safety reasons always isolate the unit using the mains switch OFF before opening the panels If installed AS THE MICROPROCESSOR CONTROL FEATURES AUTO MATIC RESTART AFTER A SUPPLY INTERRUPTION IT IS RECOMMENDED THAT THIS FUNCTION IS DISABLED AND THE MAINS SWITCH IS OPENED WHEN PERFORMING ANY MAINTENANCE 7 1 Routine maintenance Maintenance program Monthly check e Ona daily basis check the control readings for tempera ture and if shown relative humidity e he Maintenance Programme described below should be carried out by a skilled technician preferably working under a maintenance contract Check that the fan motor rotates freely without any abnormal noise and ensure that the FANS bearings are not running hot Also check the current absorption filter Check the conditions of the filters 3 for the recirculation air and 1 for the freecooling air if this option
48. th HPSCxxA L Operating limits 230V 1090 1Ph 50Hz 400V 1096 3Ph N PE 50Hz Main power supply voltage 48VDC zx 1796 with emergency cooling 30 C 52 50 24 30 R H 80 Emergency power supply voltage Outdoor conditions Indoor conditions with compressor running 35 5 40 30 C 40 R H 40 5 R H 55 C 90 R H Storage conditions Sound pressure level Outdoor sound pressure level 7 52 5 Indoor sound pressure level 62 0 Standard electrical features Compressor AC power input 2 3 06 Compressor AC operative current OA 2 5 5 Compressor AC max current FLA 7 0 Compressor AC starting current LRA 46 0 Condenser fan AC power input 2 0 22 Condenser fan AC max power input 0 48 Condenser fan AC operative current OA 2 1 5 Condenser fan AC max current FLA 2 8 Condenser fan AC max current FLA 3 3 Evaporator fan DC power input 2 Evaporator fan DC operative current OA 2 5 8 Evaporator fan DC max current FLA 3 9 6 Evaporator fan DC starting current 0 1 Electric heating optional Heating capacity I 3 0 Heating max current OA Standard Operating Ampere FLA Full Load LRA Locked Rot
49. trol and wait until the system is stable Measure the absorbed cur rent with both fan and compressor operat ing Check all these values comparing them with those shown in the machine plate Check the delivery temperature with a digital thermometer Verify the superheating according to par 7 2 3 Close the panels of the evaporating and mo tor condensing units Tab 1 50 Hz Technical data for COOLING ONLY and COOLING HEATING unit versions F and C coupled with HPSCxx0 Operating limits Main power supply voltage 230V 10 1Ph 50Hz 400 1096 50Hz 10 47 45 24 C 30 R H 80 R H C 35 C 40 R H 30 C 40 R H 40 C 5 55 90 Outdoor conditions Indoor conditions with compressor running Storage conditions Sound pressure level Outdoor sound pressure level 7 50 Indoor sound pressure level Standard electrical features Compressor AC power input 2 Compressor AC operative current OA 2 Compressor AC max current FLA Compressor AC starting current LRA Condenser fan AC power input 2 Condenser fan AC max power input Condenser fan AC operative current OA 2 Condenser fan AC max current FLA Condenser fan AC starting current Evaporator fan AC power input 2 Evaporator fan AC op
50. umidity and or outdoor temperatures the min indoor temperature is higher than the table data Measured with 35 outdoor temperature at 2m far from the unit free field conditions Indoor reference conditions 30 C 3596 R H at the HPSE indoor unit air suction sides 35 C outdoor Nominal power supply It refers to nominal speed Factory setting pag 10 Tab 3 versions FC and EFC DC coupled with HPSCxx0 Operating limits 50 Hz Technical data for FREECOOLING and 48Vdc EMERGENCY FREECOOLING unit Main power supply voltage 230V 10 1Ph 50Hz 400V 10 3Ph N PE 50Hz Emergency power supply voltage 48VDC 17 with emergency cooling 7 Outdoor conditions 7 10 48 45 Indoor conditions with compressor running 24 C 3096 R H 80 35 C 40 R H 30 40 Storage conditions 40 C 5 R H 55 C 90 R H Sound pressure level Outdoor sound pressure level 7 50 Indoor sound pressure level Standard electrical features Compressor AC power input 2 Compressor AC operative current OA 2 Compressor AC max current FLA Compressor AC starting current LRA Condenser fan AC power input 2 Condenser fan AC max power input Condenser fan AC operative current OA 2 Condenser fan AC max current FLA
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