MPCA HSB PACKAGED AIR TO WATER HEAT PUMP COOLING/HEATING OUTDOOR INSTALLATION

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1 MPC B PCKGED IR O WER E PUMP COOLIG/EIG OUDOOR ILLIO Cooling Capacity: 8,4-6, eating Capacity: 44, - 86,0 R40c croll Features he Interklima MPC-B medium capacity series are packaged air cooled water heat pumps for cooling and heating applications and outdoor installation. hey are available in 8 models with nominal capacities ranging from 8,4 to 6, for cooling and 44, to 86,0 in heating. his series is ideal in combination with Interklima fan coils or air handling units for residences, offices, hotels, hospitals, shopping malls shops, restaurants, etc., or for supplying water for industrial applications. Optimized design for R40c refrigerant. Casing: Galvanized steel plate with polyesteric coating. ssembly Fully bolted/welding free. Compressor: ermetically sealed scroll type. ir heat exchanger: Cross fin coil. Internally grooved copper tubes and louvered aluminium fins. Direct drive propeler fan: Low rpm, quiet operation. Water heat exchanger: hell and tube type. afety and functional devices: - igh/low pressure switch. - Phase sequence - phase failure - reverse phase and voltage monitoring device. - Evaporator low water temperature protection. - Electronic microprocessor control with digital display. - Differential water pressure switch. - Linear fan speed regulation according to coil temperature. - igh and low pressure manometers.

2 OMECLURE Range -small M-mid L-large R-screw-series Packaged Chiller ir-cooled PC Model numbers Cool / eat Model R-cooling only -heat pump Compressor type -scroll M-tandem scroll R-reciprocating -twin screw 6 Refrigerant type -R B-R40c Electrical Characteristic - ingle phase -Ommited hree phase

3 Contents. echnical Description. pecifications. Capacity ables 4. Water Pressure Drop Curves. Operation Range 6. ound Data. Outlook Drawings 8. Refrigerant Circuit Diagrams 9. Wiring Diagrams 0. Installation. Guide pecifications MPC B ñ R40c/croll

4 . echnical Description General he MPC-B series air-cooled water heat pumps consists of 8 models covering capacities from 8,4 up to 6, in cooling and 44, up to 86,0 in heating. It is the end result of a thorough study, and accurate design by experienced Interklima research and development teams, to develop a mid size chiller/heat pump series with compact shape, high performance, and reliability of the highest quality standards. his series meets the highest levels of aesthetic and technical requirements using the latest technological innovations including environmentally friendly R40c refrigerant that is Chlorine-free and has zero ozone depletion potential. MPC-B units are therefore ideal for installation in urban environments due to their elegant design, selected materials and low operating sound levels. Casing ll units use metal parts that are fabricated from heavy gauge galvanized steel sheets, formed to ensure maximum rigidity that guarantees and preserves the units operation during the years. fter fabrication these are degreased, phosphatised, and electrostatically powder coated with an epoxy-polyester RL 900 coating of a thickness of 60-0 Ì. his fully automatic process ensures superior corrosion resistance against the most aggressive ambient conditions. he treatment can successfully withstand a salt spray test of 00 hours, according to M B-. ll components are assembled together using bolts thus avoiding the need for welding which may harm the galvanization of the steel, and ensures that the whole assembly can fully withstand adverse weather conditions. he compact footprint of the unit arises from detailed study and design by our engineering teams and results in a machine, which fits easily in restricted areas and is simple and easy to install and maintain, and has been designed with special fittings for easy transport and lifting. Removable side panels with special locks are used to permit access only to authorized personnel to internal components of the unit for inspection and maintenance. Electrical and electronic equipment and components for proper unit operation are located in a weather proof (IP ) electrical panel with access via a special key. Compressor ll units use low-noise, maintenance free, ermetic croll compressors with low vibration levels, specially optimized for use with R40c refrigerant, selected from world class suppliers. hey are equipped with a crankcase electrical heater for the oil, and are internally protected against potential overloading or electrical spikes. he compressors are mounted on special antivibration rubber mounts to eliminate vibration from the unit s operation. ir heat exchanger coil ll unit air heat exchangers are manufactured from high quality seamless inner grooved copper tubes according to M B-80, having an outside diameter of 9, mm (/8"). he fins are manufactured from aluminium and form the secondary extended heat transfer surface. he fins are continuous across the heat exchanger and are fabricated in high precision dedicated press lines. he fin surface is waffle formed, so as to increase the fin rigidity, and have special louvers that help increase heat transfer. he combination of internally grooved Copper-tubing and louvered fins has resulted in a heat transfer performance 0% superior to that of a conventional coil for this particular application. he assembly of the finned pack is achieved by mechanical expansion of the tubes in such a way as to form a perfect mechanical bond with the fins. For this purpose, the fin holes have a peripheral extrusion (collar) of adjustable height. his extrusion serves to define the distance between fins (and consequently the total heat transfer surface) and to ensure perfect contact of the fins to the tubes. lternative fin materials are available upon request such as epoxy coated aluminium or copper for applications in especially aggressive environments. Water heat exchanger ll units are equipped with a hell and ube water direct expansion type evaporator that has two separate cooling circuits, one for each compressor. he casing is of steel and the internal tubes are of copper. here is an air vent valve, drain valve, probes for water temperature sensors, differential pressure switch and the whole heat exchanger is wrapped in a heavy insulation material appropriate for external installation. ir heat exchanger fans ll unit fans are of the axial type, single phase, 6 poles, internally protected against potential overheating, silent and suitable for outdoor installation. Due to the sophisticated aerodynamic design of the blades and inlet cones, as well as the perfect static and dynamic balancing, their operation is completely vibration-free. he fan motor assembly has a protective grid against accidental contact with moving parts, which is designed according to IO regulations. Fan motors are of the external rotor type, aerodynamically shaped so as not to interfere with the airflow, and 4 MPC B ñ R40c/croll

5 have permanently lubricated bearings that do not require servicing. Continuous linear fan speed regulation control is achieved according to coil temperatures including fan silent mode operation. his standard feature for Interklima MPC units saves energy and reduces sound levels dramatically, optimizing capacity. Microprocessor controller ll units are equipped with a sophisticated controller that combines intelligence with operating simplicity. he controller constantly monitors all machine parameters and precisely manages among others: ñ utomatic compressor control function through return water temperature. ñ Continuous fan speed control based on coil heat exchanger temperature. ñ Defrost control. ñ ydraulic circuit pump control. ñ Compressor starting order control to reduce starting current. ñ Compressor operation control based on running time. ñ Compressor start up time delay function. ñ Compressor running time records. ñ Water pump running time records. ñ Over 0 programmable parameters. ñ Fan motor overload protection ñ uto diagnostic stop function due to low water circulation, high/low operating pressures, and compressor/pump thermal overload. ñ uto diagnostic function and digital display of approximately 0 possible error codes including thermistor faults. ñ Digital displays of inlet / outlet water as well as coil temperatures of each circuit. ñ Remote Cool/ eat selector switch. ñ Remote on/ off switch. ñ Remote alarm indication capability. ñ Phase sequence - phase failure - reverse phase and voltage monitoring. ñ Many optional control capabilities (listed in optional accessories). Refrigerant circuit ll units have two separate refrigerant circuits one per compressor. Each circuit consists, depending the size of either restrictors or thermal expansion valves. Other components fitted are a shut off valve (09-046), suction accumulator, 4way reversing valve, check valve, solenoid valve (0-046), large capacity filter dryer with a replaceable core (09-046), liquid receiver, sight glass (0-046), check valve and high and low pressure manometers. Unit protection is provided by a high-pressure switch with manual reset, low-pressure protection is via a low-pressure switch with auto reset. Optional accessories Microprocessor controller options ñ Remote keyboard. ñ Dynamic set point program via a 4-0ma proportional signal. ñ BM module interface kit for Modbus connection. ñ Parallel chiller operation with optional controller. ñ Microprocessor parameter reprogramming card. Other unit accessories/option ñ Reciprocating, scroll, or tandem scroll compressor availability based on specification. ñ R40c or R refrigerant. ñ Condenser fins made of copper or prepainted aluminum, and Blygold treatment for corrosion protection. ñ Glycol application for chilled water low temperature down to o C. ñ Pressure relief valve on compressor discharge. ñ -meter, V-meter. ñ ydraulic module without buffer tank. ñ Water heat exchanger antifreezing electrical heater. ñ Compressor chamber noise reduction kit. ñ Compressor noise reduction jacket. MPC B ñ R40c/croll

6 . echnical specifications. MPC B ype ominal cooling capacity ominal heating capacity Construction Compressor Quantity Capacity steps bsorbed power ominal operating current Maximum operating current ir heat exchanger Water heat exchanger Quantity Water content Max. Operating pressure Connections ominal water flow Water pressure drop Minimum system water content Fan Quantity peed otal air flow bsorbed power ominal operating current Maximum operating current Electrical characteristics otal absorbed power ominal operating current Maximum operating current Compressor carter resistance power Power cables cross section per phase Fuses Voltage operating limits Refrigerant circuit umber of circuits Expansion device Refrigerant type oise m Dimensions Width Length eigth hipping weight R Btu/h kcal/h Material/Color l Water side bar Refrigerant side bar l/h kpa l rpm m /h mm V db() mm mm mm kg MPC-00 8, , 8.44,9/,6 4,4/6, /" ,/4,8 9,8/, x MPC-0 MPC-0 MPC-09 46, , ,/6, 9,0/, /" ,/, 4,4/6, x , ,.8 Galvanized steel / Light grey-beige (RL 900) CROLL 6,/8,4 0,6/, /" ,/9,6 6,0/8, x , , ,/,,/8,8 4.0 igh capacity cross finned coil with internally grooved tubes and louver fins hell and ube Electric network 400 V/Ph/0z V Restrictor R40c /" ,/4, 4,9/46, x MPC B ñ R40c/croll

7 ype ominal cooling capacity ominal heating capacity Construction Compressor Quantity Capacity steps bsorbed power ominal operating current Maximum operating current ir heat exchanger Water heat exchanger Quantity Water content Max. Operating pressure Connections ominal water flow Water pressure drop Minimum system water content Fan Quantity peed otal air flow bsorbed power ominal operating current Maximum operating current Electrical characteristics otal absorbed power ominal operating current Maximum operating current Compressor carter resistance power Power cables cross section per phase Fuses Voltage operating limits Refrigerant circuit umber of circuits Expansion device Refrigerant type oise m Dimensions hipping weight R Btu/h kcal/h Material/Color l Water side bar Refrigerant side bar Width Length eigth l/h kpa l rpm m /h mm V db() mm mm mm kg MPC-0 MPC-09 MPC-0 MPC , , ,6/,9 4,4/4, /" ,4/9,,/, x , ,0 0.80,4/6,,/60, " ,8/8, 66,/, x00, , Galvanized steel / Light grey-beige (RL 900) CROLL 40,/4, 0,0/6, " ,8/48,6 86,/9, x60 hermal expansion valve R40c , , ,0/, 8,4/9, 4.0 igh cap. cross finned coil with internally grooved tubes & louver fins hell and ube Electric network 400 V/Ph/0z V D ,/, 99,6/0, x OE ominal conditions are as follows: -entering/leaving chilled water temperature / o C; ambient o CDB (cooling) -entering/leaving heated water temperature 40/4 o C; ambient o CDB/6 o CWB (heating) -electrical installation specifications are purely indicative and nonbinding, all connections to the system andthe electrical installation must be in full accordance with all applicable national and local codes. MPC B ñ R40c/croll

8 MPC B ñ R40c/croll 8. Capacity tables MPC-00 MPC-0 MPC-0 MPC-09 MPC-0 MPC-09 MPC-0 MPC-046 Water outlet ÆC Cooling cap. bsorbed power Current bsorbed power Current Cooling cap. bsorbed power Current Cooling cap. bsorbed power Current Cooling cap. bsorbed power Current Cooling cap ype mbient temperature oc MPC-00 MPC-0 MPC-0 MPC-09 MPC-0 MPC-09 MPC-0 MPC-046 Water outlet ÆC eating cap. bsorbed power Current bsorbed power Current eating cap. bsorbed power Current eating cap. bsorbed power Current eating cap. bsorbed power Current eating cap. ype mbient temperature oc Cooling capacity table for MPC B eating capacity table for MPC B OE Bold values show nominal cooling/heating capacities. bsorbed power and current refers to the compressor. bove figures are valid for water t = o C.

9 4. Water pressure drop curves MPC B PD kpa I/h WF 80 00x0 OE PD: pressure drop WF: water flow rate. MPC 00-0B. MPC 0B. MPC 09B 4. MPC 0B. MPC 09B 6. MPC 0B. MPC 046B EYLEE GLYCOL CORRECIO FCOR % EYLEE GLYCOL BY VOLUME Freezing point o C Output duty Input power Equivalent Flow rate L/ Equivalent Pressure drop kpa UI 0-4 0,99 0,99,0, ,98 0,98,04, 0-0,9 0,98,08,8 40-0,96 0,9,, MPC B ñ R40c/croll 9

10 . Operation range O Outdoor emperature ( CDB) 4 COOLIG O Outdoor emperature ( CDB)(R=8%) EIG Leaving water temperature( o C) 0 Leaving water temperature( o C) OE Protect the water circuit against freezing - he accompanying operating limits are for general guidance only. It may be possible for certain units to operate outside the confines of the graph. Please contact Interklima if further clarification is required. - For operation with leaving water temperature below 6 o C it is required to confirm with Interklima at the time of order and the addition of glycol into the system. 6. ound data ype MPC-00 MPC-0 MPC-0 MPC-09 MPC-0 MPC-09 MPC-0 MPC-046 Power m m Power m m Power m m Power m m Power m m Power m m Power m m Power m m db() Octave band center frequency (z) MPC B ñ R40c/croll

11 . Outlook drawings. MPC 00-0B YPE B C MPC MPC MPC C B 6. MPC 09-0B YPE B C MPC MPC C B 68 MPC B ñ R40c/croll

12 . MPC 09B MPC 0-046B YPE B C MPC MPC C B 406 MPC B ñ R40c/croll

13 8. Refrigerant circuit diagrams 8. MPC 00-09B MPC 0B OE. Compressor. hell and tube heat exchanger. ir heat exchanger 4. uction accumulator. 4-way reversing valve 6. Filter dryer. Expansion device (restrictor). Expansion device (hermal expansion valve) 8. Liquid receiver 9. olenoid valve 0. Check valve MPC B ñ R40c/croll

14 8. MPC B OE. Compressor. hell and tube heat exchanger. ir heat exchanger 4. uction accumulator. 4-way reversing valve 6. Filter dryer. Expansion device (restrictor). Expansion device (hermal expansion valve) 8. Liquid receiver 9. olenoid valve 0. Check valve. ight glass. hut off valve 4 MPC B ñ R40c/croll

15 9. Wiring diagrams 9. MPC 00-0B L L L FROM POWER CIRCUI REMOE O-OFF Off O COROL CIRCUI REMOE UMMER-WIER W 4 4 FF EMI FILER F F VC V RFORMER C LL GD C DC K C GD 4 ID ID4 LP L P ID ID ID LP L P C C EERGY 400 GD GD K ID0 ID9 C W ID ID8 FLOW WIC F F 6 ID F ID6 C 0V F C P P P P F F F C F 4 4 F Ltc, LF C C FM FM CC CC 4V 4V PUMP ERML P C L L 9. MPC 09-0B FROM POWER CIRCUI L L L REMOE O-OFF Off O COROL CIRCUI REMOE UMMER-WIER W 4 4 FF EMI FILER F F VC V RFORMER 0V C LL GD CDC K C GD 4 ID ID4 LP L P ID ID ID LP L P C C EERGY 400 GD GD K ID0 ID9 C W ID ID8 F FLOW WIC F 6 ID F F ID6 C C P P P P F F F C 4 F 4 F Ltc, LF C C FM FM C FM CC CC 4V 4V PUMP ERML P C L L MPC B ñ R40c/croll

16 9. MPC 09B L L L FROM POWER CIRCUI FF FF EMI EMI FILER FILER F 0V F V VC C LL C DC GD GD K ID COROL CIRCUI REMOE O-OFF OFF O 4 ID4 L ID ID L ID C LL C DC GD GD K ID0 REMOE -W C ID9 F W ID ID ID ID6 + C 4 F COROL F 4 C LF C F 4 COROL F 4 C LF C LP P LP P C P P P P FLOW WIC W F F4 F C F C _ EERGY 400 FM FM FM FM4 CC V CC V Ltc Ltc V 4V 9 0 L L V V CC CC 4V 4V C P 9.4 MPC 0-046B FROM POWER CIRCUI L L L FF EMI FILER FF EMI FILER F 0V F V VC C LL GD C DC K GD ID COROL CIRCUI REMOE O-OFF OFF O 4 ID4 L ID ID L ID C LL GD C DC K GD ID0 REMOE -W C ID9 F W ID ID ID ID6 + 4 F F 4 COROL COROL F 4 F 4 LF LF C LP P LP P C P P P P FLOW WIC W F4 F F6 F F F C C _ EERGY 400 FM FM FM FM4 FM FM6 CC CC V V Ltc Ltc 4V 4V L L V V CC CC 4V 4V C P 6 MPC B ñ R40c/croll

17 9. MPC B L L L M POWER CIRCUI Mp PE FC FC FC CC CC VC CC CC U V W U V W C C C C CM CM LEGED F COROL CIRCUI BREKER F LOW VOLGE ( V) CIRCUI BREKER FF CIRCUI F CIRCUI BREKER FF CIRCUI F CIRCUI BREKER F, CODEER F PEED COROLER VC VOLGE URVEYOR CC COMPREOR COCOR CC COMPREOR COCOR V CIRCUI LIQUID LIE OLEOID VLVE V CIRCUI LIQUID LIE OLEOID VLVE C COMPREOR ERML PROECIO C COMPREOR ERML PROECIO F CODEER F ERML PROECIO P IG PREURE PREO CIRCUI LP LOW PREURE PREO CIRCUI P IG PREURE PREO CIRCUI LP LOW PREURE PREO CIRCUI EERIG WER EMPERURE EOR LEVIG WER EMPERURE EOR CIRCUI COIL EMPERURE EOR 4 CIRCUI COIL EMPERURE EOR R RFORMER 0/V C 4V 4-WY VLVE st CIRCUI LRM 4V 4-WY VLVE nd CIRCUI M GEERL CIRCUI BREKER CM COMPREOR CM COMPREOR FC COMPREOR CIRCUI BREKER FC COMPREOR CIRCUI BREKER FC COMPREOR CRKCE EER CIRCUI BREKER C CRKCE EER COMPREOR C CRKCE EER COMPREOR FM CODEER F FM CODEER F FM CODEER F FM4 CODEER F 4 FM CODEER F FM6 CODEER F 6 LC 0 V FOR COMP. FIELD COECIO ERML PROECIO LC 0 V FOR COMP. ERML PROECIO E00: REMOE OFF I POIIO OFF E0: IG PREURE CIRCUI E0: LOW PREURE CIRCUI 0: ERML PROECIO WIC COMPREOR : ERML PROECIO WIC COMPREOR E04: ERML PROECIO WIC COD.F E06: PROBE FUL (WER OULE) E0: PROBE FUL (COIL ) E: ERML PROECIO WIC COMPREOR E: ERML PROECIO WIC COMPREOR 4 E: IG PREURE CIRCUI E: LOW PREURE CIRCUI E: PROBE 6 FUL (COIL ) E40: PROBE FUL (WER ILE) E4: DIFF. WER PREURE WIC OR PUMP ERML PROECIO C-P PUMP COMMD (0 V C) - PUMP ERML PROECIO (DRY COC) F-W DIFFEREIL WER PREURE WIC O-OFF REMOE O-OFF WIC (DRY COC) L-L LRM IGL (.O. COC)(DRY COC) -W REMOE UMMER-WIER WIC (DRY COC) (OPIOL) COMMD 0 V FOR I FREEZE EER W C 4V LC C 4V 4V 4V PUMP COMMD (0 V C) PUMP ERML PROECIO REMOE UMMER -WIER CRKCE EER COMPREOR 4-WY REVERIG VLVE CIRCUI 0 V FOR ERML PROECIO COMP. 4-WY REVERIG VLVE CIRCUI 0 V C C P L P C P F W O OFF L L F C P L P 4 F F F4 LC V V V V DIFFEREIL WER PREURE WIC REMOE WIC O-OFF LRM IGL (.O. COC) EERIG WER EMP.EOR () LEVIG WER EMP. EOR () CIRCUI COIL EMPERURE EOR () CIRCUI COIL EMPERURE EOR (6) F ERML PROECIO F ERML PROECIO F ERML PROECIO F 4 ERML PROECIO F ERML PROECIO F 6 ERML PROECIO COMPREOR ERML PROECIO COMPREOR ERML PROECIO IG PREURE PREO CIRCUI LOW PREURE PREO CIRCUI IG PREURE PREO CIRCUI LOW PREURE PREO CIRCUI 0 V FOR ERML PROECIO COMP. CIRCUI OLEOID VLVE CIRCUI OLEOID VLVE CRKCE EER COMPREOR F F6 0 V C W O OFF C P F L L W MPC B ñ R40c/croll

18 0. Installation 0. election of location - service space he MPC-B unit should be installed in a location that meets the following requirements:. he foundation is strong enough to support the weight of the unit, and the floor is flat to prevent vibration and noise generation.. he space around the unit is adequate for servicing and the minimum space air inlet and air outlet is available. If several units are being installed side by side in parallel, the minimum service space between them must be taken into account.. here is no danger of fire due to leakage of inflammable gas. 4. Ensure that water cannot cause any damage to the location in case it drips out the unit.. Make sure that the air inlet and outlet of the unit are not positioned towards the main wind direction. Frontal wind shall disturb the operation of the unit. If necessary, use a windscreen to block the wind. 6. In heavy snowfall areas, select an installation site where snow shall not affect operation of the unit.. Make sure that the unit can be fixed directly on concrete. 8. In order to avoid the transmission of vibration from the operating unit to its carrying structure, the use of antivibration material to install under the supports of the unit is recommended. It is suggested to install a rubber pad between the points of support and the base of the unit, or spring antivibration mounts under each point of support of the unit. 000mm 4000mm 000mm 00mm 000mm 0. Centre of gravity ªPC 00-0B MPC B ñ R40c/croll

19 ªPC 09-0B 0 00 ªPC 09B 9 00 ªPC 0-046B 9 0 MPC B ñ R40c/croll 9

20 0. Recomendations concerning the hydraulic circuit ñ ll field connections must be carried out by a licensed technician and must comply with the applicable local and national codes ñ Evaporator water connections should be made in accordance with the unit outlook respecting the water inlet and outlets ñ Water piping to be arranged so that the circulating pump discharges directly into the evaporator ñ Install a flow switch or water differential pressostat (standard component) in the water outlet piping to prevent the unit from operating at a water flow, which is too low. terminal is provided in the switch box for the electrical connection of the flow switch in the control circuit. ñ o avoid erosion, it is recommended to install a filter in the water inlet pipe. ñ It is essential to install a thermometer in the water inlet/ outlet pipe to check temperatures. ñ Provide heat insulation with suitable vapour barrier around the chilled water piping to prevent condensation and capacity loss. ñ Provide drain connections at all low points of the system to permit complete drainage for maintenance and/ or shutdown. ñ ir vents should be provided at all high points in the system located where they are easily accessible for servicing. he water inlet pipe is specially designed to obtain a complete air purge of the evaporator. ñ Install an expansion tank on the suction side of the water pump so that the water pressure on the pump suction shall be positive. ñ o avoid frequent on off operation of the compressor, a minimum water volume is required in the system (table 0.4). ñ o assure proper operation of the unit, the water flow through the evaporator must be within the specified limits in (table 0.4). MPC Example with one central pump 8 0 MPC B ñ R40c/croll

21 MPC , 6, 6, Example with internal loop pump and external zone pumps OE. Flexible. hermometer. Manometer 4. ir vent. hut off valve 6. Pump (primary circuit) 6. Pump (secondary circuit). Water filter 8. Drainage 9. Flow switch (optional) 0. Balancing valve. Buffer tank. Electric resistance. utomatic make up water valve 4. Expansion membrane. Check valve 6 afety valve MPC B ñ R40c/croll

22 0.4 Watercharge, flow and quality o ensure proper operation of the unit, a minimum water volume is required in the system and the water flow must be within the operation range as specified in the table. MPC - 00 B MPC - 0 B MPC - 0 B MPC - 09 B MPC - 0 B MPC - 09 B MPC - 0 B MPC B Minim um water volume (l) Minim um water flow (l/h) ominal water flow (l/h) Maxim um water flow (l/h) Be sure the water quality is in accordance with the specifications below OE he above tables are purely indicative and non-binding Items Items to be controlled: P Ô C lectrical conduct (m/m) at Ô C Chloride ion (mg CI-/I) ulfate ion (mg O /4/I M-alkalinity (ph 4.8) (mg O/I) otal hardness (mg CaCO/I ) Calcium hardness (mg CaCO/I) ilica ion (mg io/i Items to be referred to: Iron (mg Fe/I) Copper (mg Cu/I) ulfide ion (mg -/I) monium ion (mg +4/I Remaining chloride (mg CI/I) Free carbide (mg O/I) tability index Circulating water 0C Evaporator water below 0 below 0 below 0 below 0 below 0 below 0 below 0 below.0 below.0 ot detectable below 0. below 0. below upply water below 0 below 00 below 0 below 0 below 0 below 0 below 0 below 0. below 0. ot detectable below 0. below 0. below Circulating water 0C-60C below 0 below 0 below 0 below 0 below 0 below 0 below 0 eated water below.0 below.0 ot detectable below 0. below 0. below upply water below 0 below 0 below 0 below 0 below 0 below 0 below 0 below 0. below.0 ot detectable below 0. below 0. below endency if out of criteria corrosion + scale corrosion + scale corrosion corrosion scale scale scale scale corrosion + scale corrosion corrosion corrosion corrosion corrosion corrosion + scale 0. Operating pressure of the refrigerant circuit It is important to check the high and low pressure of the refrigerant circuit to ensure the proper operation of the unit and to guarantee that the rated output shall be obtained. Cooling mode (region) low pressure high pressure Minim um (outdoor temp. Ô ominal CDB) (leaving water temp 6 Ô (outdoor temp. Ô Maximum CDB) C) (leaving water temp, Ô (outdoor temp. 8 Ô CDB) C) (leaving water temp, Ô C),-4 bar -9 bar 4- bar - bar,-6 bar 4-6 bar ttention: he pressures measured shall vary between a maximum and minimum value, depending on the water and ambient temperatures at the moment of measurement. eating mode (region) low pressure high pressure Minim um (outdoor temp. - Ô CDB) ominal (outdoor temp. Ô CDB) Maximum (outdoor temp. Ô CDB) (leaving water temp Ô C) (leaving water temp, 4 Ô C) (leaving water temp, 0 Ô C).- bar -8 bar -. bar - bar,- bar -6 bar MPC B ñ R40c/croll

23 0.6 Digital controler User interface MPC B he interface on the front panel can be used to carry out all the operations connected to the use of the instrument, and in particular to: et operating mode Check the state of resources Respond to alarm situations 0.6. Keys 4 Front panel of the instrument elects operating mode: If the heating mode is enabled, each time the key is pressed the following sequence occurs: tand-by Cooling eating tand by If cooling mode is enabled: eating tand-by Cooling eating tand by In menu mode, this key acts as a CROLL UP or UP key (increasing value). Resets alarms, and turns the instrument on and off. Press once to reset all manually reset alarms not currently active. old down the key for seconds to turn the instrument from on to off or vice versa. When it is off, only the decimal point remains on the display. In menu mode this key acts as a CROLL DOW or DOW key (decreasing value). Pressing the mode and on-off keys at the same time. If you press both keys at the same time and then release within seconds, you shall move one level deeper in the display menu. If you press both keys for more than seconds you shall move one level up. If you are currently viewing the lowest level in the menu and you press both keys and release within seconds, you shall go up one level Displays Display ormal display shows: ñ Regulation temperature in tenths of degrees celsius with a decimal point, or in degrees fahrenheit without a decimal point. ñ he alarm code, if at least one alarm is active. If multiple alarms are active, the one with greater priority shall be displayed, according to the able of larms. ñ If temperature control is not analogue and depends on the status of a digital input ( or configured as digital inputs), the On or Off label shall be displayed, depending on whether temperature control is active or not. ñ When in menu mode, the display depends on the current position; labels and codes are used to help the user identify the current function. ñ Decimal point: when displaying hours of operation, indicates that the value must be multiplied x Led Led compressor. O if compressor is active OFF if compressor is off Rapid BLIK if safety timing is in progress low BLIK if compressor is currently set to defrost (heat pump version) Led compressor O if power step is active OFF if power step is not active Rapid BLIK if safety timing is in progress low BLIK if step is currently defrosting Led compressor O if power step is active (compressor). OFF if power step is not active Rapid BLIK if safety timing is in progress low BLIK if step is defrosting Led 4 compressor O if power step 4 is active OFF if power step 4 is not active Rapid BLIK if safety timing is in progress low BLIK if step 4 is defrosting MPC B ñ R40c/croll

24 Defrost led (heat pump version) O if defrosting is in progress OFF if defrosting is disabled or has been completed BLIK if timing is in progress (defrost interval) 0. Remote keyboard he remote keyboard on the display is an exact copy of the information displayed on the instrument, with the same leds; Electrical heater/boiler led O if the internal anti-freeze electrical heater or boiler is on OFF if the internal anti-freeze electrical heater or boiler is off eating led (heat pump version) O if the device is in heating mode Cooling led O if the controller is in cooling mode If neither the EIG led nor the COOLIG led is on, the controller is in D-BY mode It performs exactly the same functions as those described in the display section.he only difference is in use of the UP and DOW keys (to increase and decrease value), which are separate from the MODE and O/OFF keys. Connection with the controller is illustrated below: PCB COROL BORD + - BCK VIEW REMOE MPC B ñ R40c/croll

25 . Guide specifications MPC B he supply, transport to jobsite, installation, commissioning and start up of an air cooled water heat pump with the following technical characteristics. he unit shall be factory assembled, charged with R40c refrigerant and factory tested. he capacity of the unit shall be no less than: Cooling capacity: In the following conditions mbient air temperature (DB) ÆC Entering water temperature ÆC Leaving water temperature ÆC eating capacity: In the following conditions mbient air temperature (DB) ÆC mbient relative humidity % Entering water temperature ÆC Leaving water temperature ÆC he unit shall operate unhindered within 6 to ÆC/ÆC to 0ÆC (cool/heat) water outlet temperature,. to ÆC water temperature difference and up to 4ÆC ambient air temperature. he structural requirements shall be the following: UI OUIG he unit housing shall be fabricated from heavy gauge galvanized steel sheets, formed to ensure maximum rigidity that shall guarantee and preserve the unit operation during the years. ll metal parts after fabrication shall be degreased phosphatized, and electrostatically powder coated with epoxy- polyester RL 900 coating of a thickness of 60 0 m. he corrosion resistance treatment must successfully withstand a salt spray test of 00 hours, according to M B-. ll components shall be assembled exclusively together using bolts, without welding. he unit shall have removable access panels, designed in such a manner as to permit easy access to internal compartments only by authorized personnel. Electrical and electronic equipment and components for proper unit operation shall be located in a weather proof (IP ) electrical panel with access via a special key. COMPREOR hall be of the hermetic scroll type, with low noise and vibration levels, specially optimized for use with R40c refrigerant. hey shall be equipped with a crank case electrical heater, to separate refrigerant and oil when the unit is not operating. hey shall also include internal protection against overloading or electrical spikes. he compressor shall be mounted on special ant vibration rubber mounts to absorb and eliminate any vibration that can be generated from the unit base. IR E EXCGER he air hear exchangers shall be manufactured from seamless copper tubes and an outside diameter of 9.mm (/8'') of high quality according to M B-80. he tubes shall be internally grooved to achieve optimized heat transfer between refrigerant and tube. he fins shall be manufactured from aluminium. he fins shall be continuous across the heat exchanger and the fin surface shall be waffle formed and louvered so as to increase the fin rigidity and heat transfer. he combination of internally grooved copper tubing and louvered fins must result in a heat transfer performance 0% superior to that of a conventional coil. he assembly of the finned pack shall be achieved by mechanical expansion in such a way as to form a perfect mechanical bond with the fins. For his purpose, the fin holes shall have a peripheral extrusion (collar). WER E EXCGER ll units shall be equipped with a hell and ube water direct expansion type evaporator that has two separate cooling circuits, one for each independent refrigerant circuit. he casing shall be of steel and the internal tubes of copper. here shall be an air vent valve, drain valve, probes for water temperature sensors, differential pressure switch and the whole heat exchanger shall be wrapped in a heavy insulation material appropriate for external installation. IR E EXCGER F he unit shall be equipped with axial type fans, single phase, and 6 poles, internally protected against potential overheating, noiseless and suitable for outdoor installation. he design of the blades and inlet cones shall be aerodynamic, and the fan motor assembly shall be perfectly statically and dynamically balanced allowing a completely vibration free operation. he fan motor assembly shall have a protective grid against accidental contact with moving parts according to IO. he fan motor shall be of the external rotor type with permanently lubricated bearings that do not require servicing. he motor shall be aerodynamically shaped so as not to interfere with the airflow. he unit shall be equipped with a continuous linear fan speed regulation control according to coil temperature. MPC B ñ R40c/croll

26 COROL YEM WI MICROPROCEOR COROLLER he control system shall possess a sophisticated controller that shall constantly monitor all machine parameters and particularly manage among others ñ utomatic compressor control function through return water temperature. ñ Continuous fan speed control based on coil heat exchanger temperature. ñ Defrost control. ñ ydraulic circuit pump control. ñ Compressor start up time control function. ñ Compressor running time records. ñ Over 0 programmable parameters. ñ Fan motors overload protection. ñ uto diagnostic stop function due to low water circulation, high / low operating pressures and compressor thermal overload. ñ uto diagnostic function and digital display of approximately 0 possible error codes including thermistor faults. ñ Digital displays of inlet/ outlet as well as condensing temperatures of each circuit. ñ Remote cool/ heat and on / off selection. ñ Phase sequence - phase failure - reverse phase and voltage monitoring. ñ Various other optional control capabilities (listed in options). OE he consultant may if required add the below mentioned optional accessories / functions. ñ Remote keyboard. ñ Dynamic set point program via a 4-0 m proportional signal. ñ BM module interface kit for modbus connection. ñ Parallel chiller operation with more than units with optional controller. ñ Microprocessor parameters reprogramming card. ñ Condenser fins made of prepainted aluminum or copper, and blygold treatment for additional corrosion protection. ñ hell and tube exchanger-freezing protection for low chilled water temperature controlled by microprocessor. ñ Glycol for low chilled water temperatures. ñ Pressure relief valve on compressor discharge. ñ ydraulic module without buffer tank. ñ Compressor chamber noise reduction. ñ Compressor noise reduction jacket. REFRIGER CIRCUI he unit shall have two refrigerant circuits one per compressor. he circuits depending on the size shall consist of a filter dryer with replacable core, liquid receiver, suction accumulator, 4way reversing valve, expansion device, sight glass, shut off valves, solenoid valve, check valve, high pressure switch with manual reset, a low pressure switch with auto reset and high/low pressure manometers. 6 MPC B ñ R40c/croll

27 MPC B ñ R40c/croll

28 Engineering Data 006 Products are manufactured in IO 900:000 certified factories. IO 900:000 pertains to quality assurance regarding design, development, manufacturing and installation of products as well as to services related to the product. Interklima units comply with the European regulations that guarantee the safety of the product pecifications subject to change without notice IERKLIM PRODUC RE DIRIBUED BY: EGB-B--8-0/06

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