WSAN-XEE AIR TO WATER HEAT PUMP FOR OUTDOOR INSTALLATION

Transcription

1 A WSAN-XEE 2-02 AIR TO WATER HEAT PUMP FOR OUTDOOR INSTALLATION CLASS ENERGY EFFICIENCY IN CLASS A Reduced energy consumption Optimised operation at partial loads Complete hydronic assembly supplied as standard WSAN-XEE (R-4A) Size Cooling Heating [kw] [kw] REPLACE: BT0F009GB-04 The ELFOENERGY series chillers represent an important stage in the development of this type of unit. They feature the most up-to-date advances in technology, standing out for: EFFICIENCY thanks to its special construction, the ELFOENERGY ensures high energy efficiency, in particular during operation at partial loads; SELF-ADAPTING the evolved electronics implemented adapt the operating parameters of the chiller to the load conditions of the system it is installed in, optimising consumption, efficiency and the working life of the components; EASE OF INSTALLATION each unit is supplied as standard with a complete hydronic assembly and is completely tested in the factory; installation is consequently quick and easy. BT0F009GB-05 Clivet is partecipating in the EUROVENT Certification Programme "Liquid Chilling Packages". Products are listed in the EUROVENT Directory of Certified Products and in the site Eurovent Chillers Certification Programme covers air cooled packaged chillers up to 600 kw and water cooled packaged chillers up to 1500 kw. CERTIFIED QUALITY SYSTEM UNI EN ISO 9001:200

2 Percentage of operating time BT0F009GB-05 Load requested to the unit COMFORT IS A HUMAN RIGHT. CARE FOR THE ENVIRONMENT IS A HUMAN DUTY. The ELFOENERGY is an appliance of new conception, designed especially to operate with increasing efficiency as thermal load reduces, yet able to handle the maximum load demand whenever necessary. Because of significant diurnal and seasonal variations in load, chillers must operate for prolonged periods under partial load conditions. A ELFOENERGY unit always ensures conditions of maximum comfort coupled with ultra high efficiency for most of the system s working life, which means a big saving in electrical energy. This reflects the corporate policy of CLIVET, namely: offering fundamental and concrete solutions to help safeguard the well -being of people and their environment. By way of example, here is a seasonal thermal load graph relating to a multi-use building (shops, offices and apartments) located in the Milan area. SEASONAL THERMAL LOAD March April May June July August September October MULTIPLE HIGH EFFICIENCY SCROLL COMPRESSORS IN THE SAME COOLING CIRCUIT compressor Single coil A key aspect of the approach adopted in designing the ELFOENERGY is the notion of equipping a single cooling circuit with a battery of SCROLL compressors, rather than the conventional separated circuit. Moreover the use of compressors with different capacities allows a rise of the capacity step number and in this way a better capacity-control flexibility. This enables the unit to adapt perfectly to the system load. The evolved control equipment used with ELFOENERGY units will optimize the activation sequence and balance the operating cycles of the compressors to maximum advantage compressor Evaporator EUROVENT ENERGY EFFICIENCY CLASSIFICATON CLASS A IN HEATING MODE ELFOENERGY XEE units have been studied to obtain the highest ENERGY EFFICIENCY also in full load condition. For the heating operation, the ELFOENERGY R-4A is in Eurovent energy efficiency classification class "A" A CLASS HIGH EFFICIENCY AT PARTIAL LOADS The unit in an air-conditioning system is selected on the basis of the maximum load the system is designed to handle. In practice however, maximum load conditions account only for a small percentage of the overall operating time, whereas the partial load operation is the true condition in which the unit had to operate. Simulation tests conducted in different buildings have shown that systems operate on average for 90% of total operating time with thermal load lower than 60%. Accordingly, operating efficiency under partial load conditions is a key consideration when selecting a chiller. For 60% of the time, load is less than 0% For 90% of the time, load is less than 60% 2 Load percentage

3 Electrical energy (kwh) ELFOEnergy - medium EER EER monthly comparison Standard Unit - medium EER The electronic controller and the specific constructional configuration highlight the thermodynamic efficiency of ELFOENERGY. To achieve maximum efficiency, the electronic controller starts the compressors according to the most favourable ratio between the exchange surfaces, so that the condensing and evaporation temperature are always the most advantageous. The diagram to the side shows the trend in efficiency (EER) of an ELFOENERGY unit and of a traditional unit on a typical summer day. It is clear how the efficiency of the ELFOENERGY is practically always higher, reaching values that are even more than twice as high at some times of the day, when the load thermal is lower. October September August July June May April March LOW OPERATING COSTS Thanks to the characteristics described previously, ELFOEnergy ensures much higher efficiency than a traditional chiller for most of the operating time. Comparing, in the same system, the power consumption of the ELFOENERGY against the power consumption of a traditional chiller with the same capacity, the seasonal savings can reach around 5%. These data, combined with the intrinsic reliability of the unit, make the ELFOENERGY an essential option in both terms of pay back time and peace of mind. Electrical energy weekly consumptions (for a office building in Milan) Traditional unit March April May June July August September October In a system with a 4 kw unit installed, the annual energy saving obtained with a ELFOENERGY is in the region of.000 kwh, which signifies a cost saving of 500 and 590 kg less fuel to transport and burn. NOISE TOO IS LOAD-DEPENDENT The condenser electronic controller, fitted as standard on all the ELFOENERGY units, automatically adjusts the fan speed as the thermal load decreases. As the fans are the greatest source of noise for this type of unit, it is clear how this feature brings important benefits, in particular at night, when the load is reduced but noise sensitivity is heightened.

4 SLIDING TEMPERATURE The elctronic adjustment of ELFOENERGY enables to suit the temperature of the water generated by the unit to the load conditions detected by system according to a SLIDING TEMPERATURE concept that searches for the best balance between power to be supplied and energy spent to produce it. A special measure in the refrigerating circuit prevents ice from forming in the base of the air exchanger. ALL-IN-ONE PHILOSOPHY ELFOEnergy is a unit "ready for use", including not only the components of the refrigerant circuit, but also a water circuit complete with pump (optional double pump), expansion vessel, safety valve, filling assembly and filter. As a result, the only requirement is to connect the unit to the water inlet and outlet pipes; in this way, the commissioning times and the possible problems during installation are reduced to the minimum. Controls keyboard WATER FILTER Water filter (external installation) steel mesh mechanical filter positioned at the exchanger inlet. Suitable for filtering water and trapping the impurities present in the water circuit. Mechanic steal-mesh filter is supplied standard on units with hydronic kit N 1 PUMP with standard, reduced or larger discharge head DOUBLE PUMP (otional) with standard, reduced or larger discharge head Expansion vessel 4

5 STANDARD UNIT SPECIFICATIONS COMPRESSOR Hermetic orbiting scroll compressor complete with motor over-temperature and over-current devices and protection against excessive gas discharge temperature. Fitted on rubber antivibration mounts and complete with oil charge A oil heater is automatically switched on at the compressor shut-down to prevent oil dilution by the refrigerant. STRUCTURE Structure made from "aluzink" plate, providing excellent mechanical characteristics and extensive corrosion strength PANELLING External panels in prepainted aluminium especially indicated in outdoor installation due to its superior resistance to corrosion avoiding periodic painting. Side panels are easily removable and allow complete access to unit components. Internal sound proof lining reduces sound pressure levels. INTERNAL EXCHANGER Direct expansion heat exchanger, braze-welded AISI 16 stainless steel plates with large exchange surface and complete with external heat and anticondensate insulation. The exchanger comes complete with: - differential pressure switch, water side - antifreeze heater to protect the water side exchanger, preventing the formation of frost if the water temperature falls below a set value. EXTERNAL EXCHANGER Heat exchange coil with aluminium fins and copper tubes in staggered rows. The coils are complete with integral subcooling circuit which assures the correct refrigerant feeding of the expansion valve. Available in different options as per optional list. FAN Low speed axial fan directly driven by single phase external rotor motor with incorporated thermal overload. Housed in aerodynamically shaped enclosures to increase the efficiency and reduce the noise level. Complete with fan guard in order to help against fortuitous contact with the blades. REFRIGERANT CIRCUIT The circuit is complete with: - filter dryer - Ice Protection System: system to prevent ice on the bottom of air coil - sight glass with moisture indicator - high pressure switch - low pressure switch - liquid receiver - compressor suction shut-off valve - compressor discharge shut-off valve - high pressure safety - thermostatic expansion valve with equalizer - 4-way reverse cycle valve - non-return valve - pressure probes - antifreeze protection - Compressor timer / operation signal LED - possibility of communication with ZONE MASTER system (optional) - proportional + integral water temperature control - set point compensation with outside temperature probe - relay for remote cumulative fault signal - self-diagnosis system with immediate display of the error code - ON/OFF and alarm reset buttons - UP and DOWN buttons to increase and decrease the values - display of the set values, the error codes and the parameter index - compressor operating hour display - remote ON/OFF control - water pump control - function and command buttons - set point compensation with 4-20 ma signal HYDRAULIC CIRCUIT - water side safety valve - diaphragm expansion vessel - impurity trap with filter - Centrifugal pump - antifreeze heater protection to pumping station - drain valve - Closed couple pumps with high efficiency impellers. Maximum operating pressure 00 kpa. Temperature range from - to +0 C. Maximum glycol concentration 40%. Motor: closed type. External ventilation. Protection IP55. Insulation class F. Clockwise rotation looking at the pump from the motor side. ACCESSORIES - copper / aluminium condenser coils with Fin Guard (Silver) treatment - copper / aluminium condenser coils with acrylic lining - copper / copper condenser coils - stainless steel mesh mechanical filter (to be used, if required, with unit configured without hydronic group) - finned coil protection grill. - Storage tank - pump for useful heads other than standard - unit without hydraulic circuit components - double chilled water pump - serial communication module to supervisor (MODBUS) - set point compensation according to the outside enthalpy - daily and weekly programming clock - high and low pressure gauges - control keypad for remote installation that repeats all the functions already present on the onboard microprocessor control. - phase monitor to check the presence and correct sequence of the power supply phases - humidity probe for summer set point compensation according to the outside enthalpy and defrosting optimization in winter operation - rubber antivibration mounts ELECTRICAL PANEL The Power Section includes: - isolating transformer for auxiliary circuit power supply - main line isolator switch - compressor overload cutout switch - fan fuses - centrifugal pump motor protector - compressor control contactor - pump control contactor - phase cutting fan speed controller (pressure) The control section includes: - display of the set values and the error codes - H2o antifreeze and high refrigerant gas pressure pre-alarm function that reduces cooling capacity to avoid unit shut-down - compressor overload protection and timer 5

6 Size CONFIGURATION CODE ( 1 ) ( 2 ) ( ) ( 4 ) ( 5 ) ( 6 ) ( ) ( ) ( 9 ) ( ) WSAN-XEE S 2 400TN 1PUS S (Standard) 2 400TN 1PUS (Standard) - (Standard) OHP (Standard) - (Standard) - (Standard) - (Standard) - (Standard) - (Standard) B 2 1PUR D OHO CCCC SFSTR4N CLS PFCP ACC1 DSPB 2 1PUM CCCA 162 2PUS CCCA1 12 2PUR 222 2PUM (1) Standard Version(S) Standard (ST) (1) LOW TEMPERATURE Water low temperature(b) this version allows unit operation in the range of water and glycol mix temperatures between +4 and - C Low temperature: not required(-) (1) DOUBLE SET POINT Double set point: not required(-) Double set point for water low temperature(dspb) double set point with units in "Brine" version (2) VOLTAGE Supply voltage 400//50+N(400TN) () GROUP UTILITY SIDE Standard pump(1pus) single-pump with reduced available head(1pur) single-pump with larger available head(1pum) standard double pump(2pus) double pump with reduced available head(2pur) double pump with larger available head(2pum) Hydronic group utility side: not required(-) (4) ENERGY RECOVERY Energy recovery: not required(-) Partial energy recovery(d) made using plate exchangers to recover the desuperheating heat, up to 25% of the total heat of the unit. (5) OPERATION Operation in heat pump (OHP) Unit with heating and cooling mode standard Heat-only function (OHO) Unità in solo riscaldamento (6) CONDENSING COIL Standard condenser coil(ccs) Copper /copper condenser coil(cccc) Copper / aluminium condenser coil with acrylic lining(ccca) Copper / aluminium condenser coil with Fin Guard treatment (Silver) (CCCA1) () SOFT STARTER Disposal for inrush current reduction: not required(-) disposal for inrush current reduction, for unit 400//50+N(SFSTR4N) disposal for inrush current reduction, for unit 400//50+N () FREE CONTACTS HEATING EXTERNAL SIGNAL Additional free contacts: not required(-) free contacts for alarm(clse) free contacts for alarm (9) POWER FACTOR CORRECTION CAPACITORS (COSFI > 0.9) Power factor correction capacitors: not required(-) power factor correction capacitors (cosfi > 0.9)(PFCP) power factor correction capacitors (cosfi > 0.9) () STORAGE TANK Storage tank: not required(-) Teflon steel storage device(acc1) SOUND LEVELS Sound Power Level (db) Octave band (Hz) Sound pressure level Sound power level db(a) db(a) Measures according to ISO 44 regulations, with respect to the EUROVENT /1 certification. the sound levels refer to the unit at full load, in the rated test conditions. The sound pressure level refers to a distance of 1m from the external surface of the units operating in an open field. data referred to the following conditions : internal exchanger water = / C 6

7 DP (kpa) INTERNAL EXCHANGER PRESSURE DROP EXCHANGER PRESSURE DROP LIMIT. WARNING: DON'T USE OVER THIS LIMIT UNIT WITHOUT HYDRAULIC CIRCUIT COMPONENTS Q[L/S]= WATER-FLOW RATE DP = PRESSURE DROP ,0 1,5 2,0 2,5,0,5 4,0 4,5 5,0 Q (l/s) EXCHAMGER PRESSURE DROP LIMIT. WARNING: DON'T USE BELOW THIS LIMIT. Size Minimum flow [l/s] Maximum flow [l/s] CORRECTION FACTOR FOR ANTIFREEZE SOLUTIONS % ethylene glycol by weight 5% % 15% 20% 25% 0% 5% 40% Freezing temperature C Safety temperature C Cooling Capacity Factor Nr Compressor input Factor Nr Internal exchanger Glycol solution flow Factor Nr Pressure drop Factor Nr The correction factors shown refer to water and glycol ethylene mixes used to prevent the formation of frost on the exchangers in the water circuit during inactivity in winter. FOULING CORRECTION FACTOR INTERNAL EXCHANGER m² C/W F1 FK x ^(-4) x ^(-4) x ^(-4) The cooling performance values provided in the tables are based on the external exchanger having clean plates (fouling factor 1). For different fouling factor values, multiply the performance by the coefficients shown in the table. F1 = Cooling capacity correction factors FK1 = Compressor power input correction factor INTEGRATED HEATING CAPACITIES Anternal exchanger inlet air temperature C ( D.B.) -5 / / /.9 OTHERS Heating capacity multiplication coefficient To obtain the integrated heating capacities (the real heating capacity considering the defrost cycles too), multiply the kwt value in the heating performance tables by the following coefficient.

8 DP (kpa) DP (kpa) DP (kpa) PUMP PERFORMANCE curve of discharge head with standard pump (pump + water filter) THE HEADS ARE INTENDED AS AVAILABLE AT THE UNIT CONNECTIONS Q[L/S]= WATER-FLOW RATE DP[KPA]=USEFUL DISCHARGE HEAD Q (l/s) curve of discharge head with larger pump (pump + water filter) HEAD - FLOW DIAGRAM DP = AVAILABLE HEAD Q = WATER FLOW Q (l/s) pressure drop curves double pump Q (l/s) PRESSURE DROP TO REMOVE IN THE ACCES- SORY SELECTION: DOUBLE PUMP. BOTH PUMPS CAN HAVE A STANDARD, REDU- CED OR LARGER AVAILABLE HEAD. THE SECOND PUMP STARTS UP AUTOMATICALLY IN CASE OF THE FIRST PUMP FAILURE. THE UNIT CONTROL ALLOWS AN OPERATION ROTATION OF BOTH PUMPS. THE AVAILABLE HEAD, IN CASE OF THE DOUBLE PUMP USE, IS THE AVAILABLE HEAD OF THE SINGLE CHOOSEN PUMP (STANDARD, REDUCED OR LARGER) LESS THE PRESSURE DROPS AS YOU CAN SEE FROM THE GRAPH.

9 Application: Terminal units GENERAL TECHNICAL SPECIFICATIONS Size COOLING Cooling capacity 1 kw Compressor power input 1 kw Total power input 2 kw EER EER EER EER ESEER HEATING Heat output kw Compressor power input kw Total power input 2 kw COP COMPRESSOR Type of compressors SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL No. of Compressors Nr Std Capacity control steps Nr 2 2 Oil charge (C1) l Refrigerant circuits Nr INTERNAL EXCHANGER Type of internal exchanger PHE PHE PHE PHE PHE PHE PHE PHE No. of internal exchangers Nr Water flow rate (Internal Exchanger) 1 l/s Max water flow-rate l/s internal exchanger pressure drop kpa Useful pump discharge head 1 kpa EXTERNAL SECTION FANS Type of fans 9 AX AX AX AX AX AX AX AX Number of fans Nr Standard air flow l/s Installed unit power kw CONNECTIONS Water fittings 1" 1/4 1" 1/4 1" 1/4 2" 2" 2" 2" 2" HYDRAULIC CIRCUIT Max water side pressure kpa Safety valve calibration kpa EXPANSION VESSEL Expansion vessel capacity l Maximum water side pressure kpa No. of expansion vessels Nr POWER SUPPLY Standard power supply V 400//50+N 400//50+N 400//50+N 400//50+N 400//50+N 400//50+N 400//50+N 400//50+N NOISE LEVELS Sound pressure level (1 m) db(a) DIMENSIONS Length mm Depth mm Height mm Packing volume m STANDARD UNIT WEIGHTS Shipping weight kg Operating weight kg (1) data referred to the following conditions : internal exchanger water = / C external exchanger air intake 5 C (2) Total absorbed power is given by the compressor absorbed power + fan absorbed power + auxiliary circuit absorbed power. () 0% EER internal exchanger water outlet temperature = C room temperature = 5 C (4) EER 40% data referred to the following conditions : internal exchanger water outlet temperature = 1 C room temperature = 25 C (5) 50% EER data referred to the following conditions : internal exchanger water outlet temperature = C room temperature = 2 C (6) EER 60% data referred to the following conditions : internal exchanger water outlet temperature = C room temperature = 2 C () data referred to the following conditions : outlet water internal exchanger 45 C room temperature = C (RH = 5%) () PHE = plates (9) AX = axial-flow fan 9

10 GENERAL TECHNICAL SPECIFICATIONS Application: Unit for underfloor heating Size COOLING Cooling capacity 1 kw Compressor power input 1 kw Total power input 2 kw EER HEATING Heat output kw Compressor power input kw Total power input kw COP COMPRESSOR Type of compressors SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL No. of Compressors Nr Std Capacity control steps Nr 2 2 Oil charge (C1) l Refrigerant circuits Nr INTERNAL EXCHANGER Type of internal exchanger 4 PHE PHE PHE PHE PHE PHE PHE PHE Water flow rate (Internal Exchanger) l/s Max water flow-rate l/s internal exchanger pressure drop 1 kpa Useful pump discharge head 1 kpa EXTERNAL SECTION FANS Type of fans 5 AX AX AX AX AX AX AX AX Number of fans Nr Standard air flow l/s Installed unit power kw CONNECTIONS Water fittings 1" 1/4 1" 1/4 1" 1/4 2" 2" 2" 2" 2" HYDRAULIC CIRCUIT Max water side pressure kpa Safety valve calibration kpa EXPANSION VESSEL Expansion vessel capacity l Maximum water side pressure kpa No. of expansion vessels Nr POWER SUPPLY Standard power supply V 400//50+N 400//50+N 400//50+N 400//50+N 400//50+N 400//50+N 400//50+N 400//50+N NOISE LEVELS Sound pressure level (1 m) db(a) DIMENSIONS Length mm Depth mm Height mm Packing volume m STANDARD UNIT WEIGHTS Shipping weight kg Operating weight kg (1) data referred to the following conditions : internal exchanger water = 2/1 C external exchanger air intake 5 C (2) Total absorbed power is given by the compressor absorbed power + fan absorbed power + auxiliary circuit absorbed power. () data referred to the following conditions : water to internal exchanger 0/5 C outdoor air temperature C DB - 6 C WB (4) PHE = plates (5) AX = axial-flow fan Voltage: 400//50+N ELECTRICAL DATA Size F.L.A. - FULL LOAD CURRENT AT MAX ADMISSIBLE CONDITIONS F.L.A. - Pump A F.L.A. - Total A F.L.I. FULL LOAD POWER INPUT AT MAX ADMISSIBLE CONDITION F.L.I. - Pump kw F.L.I. - Total kw M.I.C. MAXIMUM INRUSH CURRENT M.I.C. - Value A voltage unbalance: max 2 % power supply 400//50 (+ NEUTRAL) +/- 6% The pump is included in the total values calculation for non standard voltage please contact Clivet technical office

11 Application: Terminal units OPERATING LIMITS (COOLING) Size EXTERNAL EXCHANGER Max air intake temperature 1 C Max air intake temperature 2 C Min. air intake temperature C INTERNAL EXCHANGER Max water inlet temperature 4 C Min. water outlet temperature 5 C Min. water outlet temperature 6 C OPERATING LIMITS (HEATING) EXTERNAL EXCHANGER Max air temperature inlet (WB) C Min air inlet temperature (W.B.) C INTERNAL EXCHANGER Min. water outlet temperature C Max water outlet temperature 9 C Warning: the still air condition is meant as absence of air flow to the unit. Any wind condition can let air pass through the condenser coil thus worsening the operating limits of the unit (see limits with air speed at 0,5 m/s & 1 m/s). ATTENTION: IN CASE OF PREDOMINANT WINDS, WINDBREAK BARRIERS ARE NECESSARY. Water thermal head (min / max) are indicated in the section INTERNAL EXCHANGER PRESSURE DROP (1) unit at full load: internal exchanger water / C (2) internal exchanger water = / C capacity-controlled unit (automatic capacity control) () external exchanger air in quiet (4) this limit can be exceeded for brief and transitory periods with automatic capacity control of the unit: the maximum limit is 0 C. (5) standard unit outdoor air temperature 5 C (6) B = Low Temperature outdoor air temperature 5 C Fluid with ethylene glycol of 40% () unit at full load outlet water internal exchanger 45 C () outlet water internal exchanger 45 C (9) room temperature = C (RH = 5%) Application: Unit for underfloor heating OPERATING LIMITS (COOLING) Size EXTERNAL EXCHANGER Max air intake temperature 1 C Max air intake temperature 2 C Min. air intake temperature C INTERNAL EXCHANGER Max water inlet temperature 4 C Min. water outlet temperature 5 C Min. water outlet temperature 6 C OPERATING LIMITS (HEATING) EXTERNAL EXCHANGER Max air temperature inlet (WB) C Min air inlet temperature (W.B.) C INTERNAL EXCHANGER Min. water outlet temperature C Max water outlet temperature C (1) unit at full load internal exchanger water = 2/1 C (2) internal exchanger water = 2/1 C capacity-controlled unit (automatic capacity control) () external exchanger air in quiet (4) this limit can be exceeded for brief and transitory periods with automatic capacity control of the unit: the maximum limit is 0 C. (5) standard unit outdoor air temperature 5 C (6) B = Low Temperature outdoor air temperature 5 C Fluid with ethylene glycol of 40% () unit at full load exchanger water outlet 5 C () exchanger water outlet 5 C 11

12 APPLICATION: TERMINAL UNITS COOLING PERFORMANCE Size To (ºC) EXTERNAL EXCHANGER AIR INTAKE TEMPERATURE (ºC) kwf kwe kwf kwe kwf kwe kwf kwe kwf kwe kwf kwe To = Internal exchanger water outlet temperature in C kwf = Cooling capacity in kw kwe = Compressor power input in kw Performances in function of the inlet/outlet water temperature differential = 5 C

13 APPLICATION: TERMINAL UNITS COOLING PERFORMANCE Size To (ºC) EXTERNAL EXCHANGER AIR INTAKE TEMPERATURE (ºC) kwf kwe kwf kwe kwf kwe kwf kwe kwf kwe kwf kwe To = Internal exchanger water outlet temperature in C kwf = Cooling capacity in kw kwe = Compressor power input in kw Performances in function of the inlet/outlet water temperature differential = 5 C 1

14 APPLICATION: TERMINAL UNITS APPLICATION: UNIT FOR UNDERFLOOR HEATING HEATING PERFORMANCE Size Ta ( C) DB/WB EXTERNAL EXCHANGER WATER OUTLET TEMPERATURE ( C) kwt kwe kwt kwe kwt kwe kwt kwe kwt kwe kwt kwe / / / /.9 / 6 /.2 15 / 1 - / / / /.9 / 6 /.2 15 / 1 - / / / /.9 / 6 /.2 15 / 1 - / / / /.9 / 6 /.2 15 / 1 - / / / /.9 / 6 /.2 15 / 1 - / / / /.9 / 6 /.2 15 / Ta = internal exchanger inlet air temperature kwt = Heating capacity (kw) kwe = Compressor power input in kw 14

15 APPLICATION: TERMINAL UNITS APPLICATION: UNIT FOR UNDERFLOOR HEATING HEATING PERFORMANCE Size Ta ( C) DB/WB EXTERNAL EXCHANGER WATER OUTLET TEMPERATURE ( C) kwt kwe kwt kwe kwt kwe kwt kwe kwt kwe kwt kwe / / / /.9 / 6 /.2 15 / 1 - / / / /.9 / 6 /.2 15 / Ta = internal exchanger inlet air temperature kwt = Heating capacity (kw) kwe = Compressor power input in kw 15

16 APPLICATION: UNIT FOR UNDERFLOOR HEATING COOLING PERFORMANCE Size To (ºC) EXTERNAL EXCHANGER AIR INTAKE TEMPERATURE (ºC) kwf kwe kwf kwe kwf kwe kwf kwe kwf kwe kwf kwe kwf kwe To = Internal exchanger water outlet temperature in C kwf = Cooling capacity in kw kwe = Compressor power input in kw Performances in function of the inlet/outlet water temperature differential = 5 C 16

17 APPLICATION: UNIT FOR UNDERFLOOR HEATING COOLING PERFORMANCE Size To (ºC) EXTERNAL EXCHANGER AIR INTAKE TEMPERATURE (ºC) kwf kwe kwf kwe kwf kwe kwf kwe kwf kwe kwf kwe kwf kwe To = Internal exchanger water outlet temperature in C kwf = Cooling capacity in kw kwe = Compressor power input in kw Performances in function of the inlet/outlet water temperature differential = 5 C 1

18 (OHP)Unit with heating and cooling mode Standard configuration of unit with heating and cooling mode (OHO)Heat-only function Unit configuration in heating-only mode (CCCA1)copper / aluminium condenser coils with Fin Guard (Silver) treatment The Fin Guard Silver, for finned exchanger, is a polyurethane vernish waterproof (for waterworks, see and discharge water). It is also resistant to oil products and other different solvents. It hasn't any effects on the air side pressure drops. (CCCC)copper / copper condenser coils The copper/copper condensing coil allows a better resistence to the natural agent like salt and sulphureous vapours. (CCCA)copper / aluminium condenser coils with acrylic lining The copper/aluminium evaporator coils with acrylic lining can be used in the room where the ambient air contains a concentration of salt and other not very aggressive agents. (-)unit without hydronic assembly The unit can be requested without circulating pump, expansion vessel, safety valve water side and filling assembly. (1PUR)Single pump with reduced working head (1PUM)Single pump with increased working head (2PUS)standard double pump (2PUR)Double pump with reduced working head (2PUM)Double pump with increased working head 1

19 +5V CN2 16 gnd CN1 CN CN1 gnd + - V AC (PMX)phase monitor phase monitor to check the presence and correct sequence of the power supply phases separately supplied accessories (SFSTR4N)disposal for inrush current reduction, for unit 400//50+N Starting up a motor directly can overload the electricity network, with start-up currents up to times the nominal current. Thanks to the breakaway current reduction device, start-up takes place gradually, with the start-up current being limited during this period of time. The start-up current can therefore be reduced to.5-4 times the nominal current, meaning that the power systems and protection devices can be sized with lower parameters. (CMMBX)serial communication module to supervisor (MODBUS) The serial communication module to supervisor (MODBUS) is connected with the principal module through a comb connection (see lay-out on electrical panel). In this way the remote assistance and supervision are available through standard MODBUS protocol.it is possible to connect to a single supervisor system up to units. The connection to PC must be obtained through a converter RS45/22; the serial port RS22 admits as maximum a m length.the serial communication module to supervisor (MODBUS) is necessary when the unit is connected to ELFOCONTROL. SERIALE TTL / RS45 Vac - + gnd Supervisore TTL / RS45 gnd V AC RS-22 gnd RS-45 TTL / RS45 gnd V AC ALLE ALTRE UNITA separately supplied accessories (SCPX)Set point compensation with according to outdoor enthalpy It allows to modulate unit set-point according to the external enthalpy. In this way an higher comfort and continuous energy saving are guaranteed. It optimizes unit energy efficiency, through a set point automatic modulation, according to the external conditions (temperature + humidity). It optimiezs also the defrosting time during winter operation. separately supplied accessories 19

20 (AMRX)Rubber antivibration mounts The rubber antivibration mounts reduce the vibrations of compressor during its operation and they are installed at the base toe. separately supplied accessories (CLS)free contacts for alarm Free contacts for compressor state (PFCP)power factor correction capacitors (cosfi > 0.9) the power factor correction capacitors increase the cosf value, reducing the apparent current on the supply line to the chiller assembly (RCMRX)Remote control with remote microprocessor control the remote control allows the remote display and operation of functions of the microprocessor on the unit separately supplied accessories (ACC1)Storage Inertial storage tank of 0 litres, for applications where the system has limited water content. (sizes 2-2-2) Inertial storage tank of 0 litres, for applications where the system has limited water content. (sizes ) (IFWX)Steel mesh filter on the water side stainless steel mesh mechanical filter (to be used, if required, with unit configured without hydronic group) steel mesh mechanical filter positioned at the exchanger inlet. Suitable for filtering water and trapping the impurities present in the water circuit. separately supplied accessories (D)Energy recovery partial recovery of condensing heat, up to 25% 20

21 (14) 60 O P (14) 1 09 DIMENSIONAL DRAWING DIMENSIONALES AND WEIGHT DISTRIBUTION WSAN-XEE (15) W1 W "G" 1 2 W W4 00 (15) M N Size M mm N mm O mm P mm Length mm Depth mm Height mm W1 kg W2 kg W kg 90 4 W4 kg 66 6 Operating weight kg Shipping weight kg (1) COMPRESSOR (2) FINNED EXCHANGER () HELICAL FANS (4) PLATE EXCHANGER (5) EXCHANGER WATER OUTLET (6) EXCHANGER WATER INLET () PUMP () POWER INPUT (9) LIFTING HOLES () ELECTRICAL PANEL (11) MICROPROCESSOR KEYBOARD () MAIN ISOLATOR SWITCH (1) VIBRATION MOUNTS POSITION (14) MINIMUM DIMENSION FOR A PROPER AIR FLOW TO THE CONDENSER COIL. (15) MINIMUM DIMENSION FOR A SAFE PASSAGE. (G) BARYCENTRE VICTAULIC CONNECTION JOINTS 21

22 (14) O P 00 (14) DIMENSIONAL DRAWING DIMENSIONALS AND WEIGHT DISTRIBUTION WSAN-XEE (15) W1 W "G" 1 2 W W4 00 (15) M N Size M mm 92 9 N mm O mm P mm Length mm Depth mm Height mm W1 kg W2 kg W kg W4 kg Operating weight kg Shipping weight kg (1) COMPRESSOR (2) FINNED EXCHANGER () HELICAL FANS (4) PLATE EXCHANGER (5) EXCHANGER WATER INLET (6) EXCHANGER WATER OUTLET () PUMP () POWER INPUT (9) LIFTING HOLES () ELECTRICAL PANEL (11) MICROPROCESSOR KEYBOARD () MAIN ISOLATOR SWITCH (1) VIBRATION MOUNTS POSITION (14) MINIMUM DIMENSION FOR A PROPER AIR FLOW TO THE CONDENSER COIL. (15) MINIMUM DIMENSION FOR A SAFE PASSAGE. (G) BARYCENTRE VICTAULIC CONNECTION JOINTS 22

23 (14) O P 00 (14) DIMENSIONAL DRAWING DIMENSIONALS AND WEIGHT DISTRIBUTION WSAN-XEE (15) W1 W "G" 1 2 W W4 00 (15) M N Size M mm N mm 2 2 O mm P mm 55 5 Length mm Depth mm Height mm W1 kg W2 kg 11 W kg W4 kg Operating weight kg Shipping weight kg (1) COMPRESSOR (2) FINNED EXCHANGER () HELICAL FANS (4) PLATE EXCHANGER (5) EXCHANGER WATER INLET (6) EXCHANGER WATER OUTLET () PUMP () POWER INPUT (9) LIFTING HOLES () ELECTRICAL PANEL (11) MICROPROCESSOR KEYBOARD () MAIN ISOLATOR SWITCH (1) VIBRATION MOUNTS POSITION (14) MINIMUM DIMENSION FOR A PROPER AIR FLOW TO THE CONDENSER COIL. (15) MINIMUM DIMENSION FOR A SAFE PASSAGE. (G) BARYCENTRE VICTAULIC CONNECTION JOINTS 2

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