User manual
Contents
1. _______ _ ____ __ ______ M cA M SS SS IlNLOINLIA ITle nI ea Sea water out lt Chilled water supply Chiller unit Chiller unit Sea water filter Fresh air system m t Pe oimplyfied drawing of a 1 chilled water system Sea water in EC Declaration of Conformity Manufacturer Mav B V Address Loofklapper 14 8256 SL Biddinghuizen The Netherlands Product Airco Chiller Unit Series A AIV CIV amp HC MAV BV hereby declares that the product series listed above are designed and manufactured in compliance with the essential health and safety requirements of the following Directives Machinery Directive 2006 42 EC Low Voltage Directive 2006 95 EC Electromagnetic Compatibility Directive 2004 108 EC Pressure Equipment Directive 97 23 EC The harmonized technical standards and the technical standards to the conformity assesment EN 12100 1 amp 2 Safety of machinery General principles for design Risk assessment and risk reduction EN 14121 1 Safety of Machinery Risk assessment Principles EN 378 1 amp 2 Refrigerating systems and heat pumps Basic requirements definitions classification and selection criteria Design construction testing marking and documentation MME Place and date of issue Name and signature of authorized NAUTIC amp INDUSTRIAL ENGINEERING2. POMOUS 5 jueuoduJoo uonoeuuoo sad Ag po1oeuuoo JON HO UO JosseJduJo UOIMS 1972M BES 05 enuen 29 1009 MO peru U91IMS sef 19 y ms MS 1 N T 1 NJ N oH 7 SMS v MS EMS ZMS LMS 97029 o Tm ug SepSH 98 BAOEZ vOLN COIN ZOLN LOLN BIS AG IS AG Mave nautic and industrial engineering B V The Netherlands tel 31 0 321 337467 web www mave nl email info mave nl Page 20 Ul JosseJduuoo seb i Pet Josues aJnssaJg Iu uoneoiunuJulo2 J0oSS91du09 J8JEM se uonong JOSU S aJnssaJg AouenboJJ MSIAI9AO 91119919 19 1U9 UMC A15 Rev O 01 01 2015 English 15 Display settings Left Up Display Right OK Down Th
3. PRES ER ele e Mu e T e e e e e Eo2 ec Display prog TT e res R29 T RJ11 rs e cal ge 9 J T e e C 1 8 TD 2 5 22 4 ec e e 5 D 1C2 C10 1 ec o x e U3 e w e un ce te amp z ere as ec ES im re Othe ec ci2 D 9 z 2184251 1 eo gt lt D o e pi c20 s F lt 2 230VACin SW1 SW2 SW3 oH Sane Sens2 ae 9 DC in T T L NL 5v Sig swcw L FS1 0990999909090 lt external 24Vdc supply External relay gt xr y Open contact for Water valve to switching to external switch the fluid heater system between cool and heat Heater output It is possible to control an external heater with the electronics of the chiller unit If the heat function will be activated the circulation pump and the heater output will also be activated Valve output If the fluid system to the fancoilunits is combined for cooling and heating it is possible to use a valve to switch over from the chiller to an external heater The sw5 output can be used to switch a 12 24Vdc signal It is not possible to switch a 230Vac signal with this Valve output will be activated for 3 minutes after switch off the heat function to cool down the heater unit
4. web nl il inf nl X ES e 0 web www mave nl email info mave n MAR I Page 14 12 Electric connections pumps and flow switches e zo e cg e e __ e e e e ense e Eo em Display prog C19 e n FOS e e e e O1 e e e e n2 e z e ns Ho Drive cof P3 Jo im posses gt o ne ie A s s Dui le T mo 4 ec 2 9 amp 6 73 12 oule D c Z e swf sw 9 sua sw Coo e i O ry 2 e me cee e D _ gd ame v ecHB i o e e us e gt 5 M e e e e T e l ec7 T wc gt 8 fe OQ 1 lt 2 9 bd 2 12 12 121 0 0 0 a 2 bal bd zT 9 gt e LE T T MI TI FS2 NIL Ell oll wl Fl N pu o eee eleoco e dr g TE N O 2Am N 230VAC i ur un i SW5 EX1 NTC1 MTC2INTC3 NTC4 Sens Sens2 Flow switch Pas n wr EM _ 5v Sig 45v Sig SW CW OO OO 99 seq OO e Jumper J3 S01 502 Circulation pump ui Sea water pump Circulation pump This pump will always run whe
5. Due to this fast pressure drop the refrigerant turns very cold when it enters the evaporator The evaporator will transfer the very low temperature to the chilled water system The unit is designed to keep the outgoing chilled water temperature level to the set temperature which will be set in the display of the chiller unit The fan coil units absorb the heat from the area s where they are installed the heat will be transferred by chilled water pipes to the chiller unit s Chilled water Condenser Evaporator Chilled water Expansion IMPORTANT TO READ BEFORE INSTALLATION Electrical Most MAR IX products have 2 separate power supply s one 24Vdc and one 230Vac or 400Vac The 24Vdc is for control the chiller unit and for memory and communication The 230Vac or 400Vac is to supply the compressor and pumps Without one of the power supplies the system will not function External components equipment External components like pumps fancoil units heaters etc are not fully described in this manual Please use the specific manuals of these components for a proper installation UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl il inf ni x Sau e 0 web www mave nl email info mave n MAR I Page 5 4 Dimensions Fundation sizes UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel
6. Place and date of issue Name and VA ofauthorized NAUTIC amp INDUSTRIAL ENGINEERING Biddinghuizen 17 02 2015 person FE Managing director Mav B V T 003 Rev O 09 01 2015 Mar ix a product from Mav B V MAR I Loofklapper 14 8256 SL Biddinghuizen The Netherlands Tel 31 0 321 337467 Web www mave nl Email info mave nl M00048 rev 5
7. 31 0 321 337467 web nl il inf nl x Sau e 0 web www mave nl email info mave n MAR I Page 6 5 Installation of the chiller unit Keep clear for N Top cover 10cm Keep clear for o0cm Choose a place for the chiller unit in a technical area or the engine room Keep the front of the unit free for mounting the fluid piping and electrical wiring For maintenance or repair we advise to keep the front clear from other equipment and make it possible that the top cover can be removed We advise to keep the top of the unit clear for around 20cm Place the chiller unit on a solid underground which can bare the weight of the unit and fix the unit with 8 bolds to the floor UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl il inf nl x E e 0 web www mave nl email info mave n MAR I Page 7 6 Chiller fluid connections Chilled water in 3 4 G inner thread Sea water out 1 G external thread Sea water in 1 G external thread Drain Chilled water out 3 4 G inner thread UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands tel 31 0 321 337467 web www mave nl email info mave nl nglis Page 8 Chiller connections We advise to connect the chilled water system as indicated on this page but there are many possibilities with different kind of materials Important is tha
8. Biddinghuizen 18 02 2015 person Managing dir ttor Mav B V DOC 001 0 09 01 2015 Pressure Test Certificate Manufacturer Mav B V Address Loofklapper 14 8256 SL Biddinghuizen The Netherlands Product Airco Chiller Unit Series AIV amp HC Mav B V the Netherlands declares that all manufactured chillers and AC units have been tested and subjected to the following test procedures The complete installation has been pressure tested with dry N2 according to European and Dutch regulations All units have been tested on at least 1 0 times the maximum working pressure with a maximum of 1 3 times the maximum working pressure The design pressure of any component is not lower than the maximum working pressure of the refrigeration system or section of the system in which that component is used During the testing period the installation has been checked on leakage and deformation Testing values R410a units This testing pressure on the low pressure side was 22500 KPa g 43 C This testing pressure on the high pressure side was 22600 KPa g 43 C water cooled R407c units This testing pressure on the low pressure side was 21750 KPa g 43 C This testing pressure on the high pressure side was 21750 KPa g 43 C water cooled R134a units This testing pressure on the low pressure side was 21000 KPa g 43 C This testing pressure on the high pressure side was 21000 KPa g 43 water coole
9. MaveBus connection Display LJ E Le _ Analog thermostat connection LI T7 ____ 2 Pump connections 2 j Valve connection 24Vdc input En Ier pa ms A 400Vac power supply Pump cable transit Power supply cable transit UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl il inf nl x B e 0 web www mave nl email info mave n MAR I Page 13 11 Electric connections power supply e R3 e zoz em n FOX e Rs HOT lee eee es eri A N JJ Cle e H se I m gt Q gt T x Q e l e 9 19 2z7u aeaaaee O r 9 9v0c3 IN SAV MMM 102216088 ei e e o oo N gt e e o o O O N XEIN V8 ee ee C13 230VAC in L N Flow switch SWCW Q OOS 230Vac input is internally supplied from main power 9 supply 24Vdc connection on the PCB must be connected to a 24Vdc supply UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467
10. UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl il inf nl x E e 0 web www mave nl email info mave n MAR I Page 16 Combined cooling heating set up Valve switched M by SW5 Cooling J Sea water pump Combined pump Chiller unit Heater by fuel Heater or electric Combined circulation pump for cooling and heating Valve switched M by SW5 dun Cooling 3J Sea water pump Cooling pump Chiller unit Heater by fuel Heater or electric Heater pump Separate circulation pump for cooling and heating Heater pump will be switched by heater UMC A15 Rev 0 Mave nautic and industrial engineering B V The Netherlands cla tel 31 0 321 337467 web www mave nl email info mave nl nglis Page 17 14 Electric control connections It is possible to control the chiller unit in ways 1 Directly to our analogue thermostat system 2 By RS485 through our master controller or 3 by manual switch over switch It is not possible to use the analogue control and RS485 control together If the RS485 control is used it is possible to use the manual switch as a back up switch The manual switch overrules the RS485 control To next controllers gt 24VD
11. as indicated below and located under the water line The sea water supply should be made in a position where the sea water is always available This means also during sailing and or glide by fast motor boats Do not install the sea water suction point near the water outlet of toilets Make sure that the sea water cooling system is installed in a way that no air blocks are possible in the system Chiller unit can be placed under or above the water line as long as the sea water inlet is above the sea water pump Valve LN Flush point x Water line Pre gt Rubber or flexible connection ZES NNNM Pump must be located under the waterline 1 The sea water filter must be located below Valve the sea water pump FE Sea water in UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web email info mave nl English e 0 web www mave n il info mav MAR I Page 11 9 Electric connection locations Remove cover By removing the cover disconnect the display cable carefully Remove all small bolds indicated by the arrows to reach the electric connections Inverter cover Remove panel UMC A15 Rev O 01 01 2015 English Mav nautic and industrial engineering B V The Netherlands tel 31 0 321 337467 web www mave nl email info mave nl Page 12 10 Electric connections
12. be observed It is important to always compare the noted pressure In combination with the sea water temperature A higher seawater temperature Will also result in a higher pressure The interval for cleaning the condensers depends on the circumstances running hours and quality of the sea water How to do See also drawing on the next page Note the sea water temperature and high pressure value of the refrigerant during operation of the system to compare the values after cleaning Every kind of cleaning solution can be used as it indicated on the specifications that it is suitable for this purpose The solution should not damage or being aggressive to copper Copper Nickel stainless steel and rubber Ware personal safety materials to protect yourself against aggressive fluids Avoid splashing with the solution to protect equipment around the working area Switch off the power supply and close the sea water supply and return valve Remove the supply and return connection from the chiller unit If more chillers are connected with each other the main connection can be disconnected If a flush connection is installed by the installer shipyard it can also be used Connect a solution pump to the sea water system as indicated on the next page Flush in the opposite direction from the normal sea water flow for around 15 minutes Check visual the pollution in the solution Disconnect and drain the system from the solution Flush the system with
13. fresh water Be aware that most cleaning solutions are bad for the environment Don t flush solutions overboard After flushing connect the sea water connections in it s original position Open the sea water valve s and start up the system Check all connections on leakage Note the sea water temperature and high pressure value again On the basis of all the collected data over a period of time a log can be made to set up a accurate maintenance schedulle UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web mave nl email info mave nl English i 0 US E ud MAR I Page 25 ss oI mmm Cleaning solution Flush point Sea water return connection 4 Flush point Sea water m connection Example of flushing cleaning the sea water system Instructions for maintenance on the refrigerant system The refrigerant system of the A15 unit is a system with a hermetic closed compressor Maintenance repair of the refrigerant system should only be done by certified persons with knowledge of this kind of equipment Refrigerant systems operate under high pressure and during running it contains hot parts inside The refrigerant system is filled with refrigerant inside which is not necessary to change or replace for maintenance It can be used for the lifespan of the chiller unit Only by a defect of one of the cool techn
14. inf nl X English e 0 web www mave nl email info mave n M AR I Page 29 18 Technical data A15 tag 400V 50Hz AC R410A 6A Nominal 81 kg UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl il inf nl x E e 0 web www mave nl email info mave n MAR I Page 30 19 Environmental Information This product is manufactured from many recyclable materials At the end of its useful life it should be disposed of at a Local Recycling Centre in order to realise the full environmental benefits It does not contain any substances harmful to health it does not contain any asbestos Chilled fluid which remains in the watercoil after dismantling should be processed in an environmentally friendly way Packing Packing materials can be re used for other purposes or can be retained in case the unit needs to be sent back UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl email info mave nl English e 0 web www mave n il info mav MAR I Page 31 Defroster unit Computer AV rack FREE Circulation pump Ly cooler Chilled water return gt 77 ge ZZ uio Os a TN el n bM P _______ __ _6_6 _6_ ____
15. C Minus 24VDC in 24VDC Minus 24VDC in BUS BUS Fan coil controller Fan coil controller Thermostat Thermostat 4 pole telephone cable Analogue control system RJ11 6p4c connection gA lt RS485 CAT5e cabl cane lt gt RS485 6 edere e 7 cs ce oe e s ete ste e e 4 e e e o2 em 5 HH er EE RJ11 ns HoT ET re e ov ECT Pe e e e l pu cul c 7 D cd J3 Heg SUP e U3 DO Q a SW1 sw e e Cle e OE gt L1 e 36 lt e 5 4 Je m e e cee e e e ex CO p Lr e nzzL e C15 IC4 Pim e ere 818 9 9195 09 ec s 9 i 57 Hi LATE d x gt l a A 5 5 2 2 2 2119 xg es ese e 230VAC in SWi SW 2060 ee eee Cin T L NIL NIL N NTC2 NTC3 NTCA4 sens Sens2 Flow switch 14 w FSi 5v Sig 5v Sig SW CW OO OO OY Manual control 4 8 amp switch i 78 UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web mave nl email info mave nl English i 0 E ud
16. MAR I MARINE AIR CONDITIONING HEATING AND VENTILATION SYSTEMS User manual Chiller A15 UMC A15 Rev O 01 01 2015 English MAR IX a product of Mav B V WWW MAVE NL CON MDM amp HP PRP PrP PrP gt CON DU OO Table of Contents Introduction Safety precautions General description Dimensions Installationof the chiller unit Chiller fluid connections Fluid system Cooling water system Electric connection locations Electric connections Electric connections power supply Electric connections pump an flow switch Electric connections ext heater and valve Electric control connections Display settings Maintenance Location components Technical data Environmental Information Annex Declaration of Conformity Pressure test certificate Test report UMC A15 Rev O 01 01 2015 English Mav nautic and industrial engineering B V The Netherlands tel 31 0 321 337467 web www mave nl email info mave nl Page 2 MAR IX 1 Introduction This manual contains detailed instructions and notes for the installation operation and use of the chiller unit s as mentioned on the title page For your safety and benefit read this manual carefully before using the machine Keep this manual in a place so that it can be consulted when necessary Read this manual thoroughly Become familiar with the machine s components and Features The installation of a ch
17. MAR I Page 18 Internal electric details EX1 erc Compressor Condenser Filter dryer M NTC2 J Evaporator W out SW out out Expansion RS485 valve communication External 24vdc NTC1 NTC2 NTC3 NTC4 LALALALA input Power supply Frequency drive 5v Sig 5v Sig NTC1 NTC2 NTC3 NTC4 230Vac in Sensori Sensor2 DC in RS485 RS485 Drive E20463 6 Electronic controller board PCB swt swe SW3 SW4 SW5 EX1 Bos Heat Cool RJ11 N L N N L N sw cw H 2v 2A max Display P Over temp switch EX1 NTC1 Temperature sensor chiller water out NTC2 Temperature sensor chiller water in NTC3 Temperature sensor refrigerant suction temperature NTC4 Temperature sensor refrigerant fluid temperature EX1 Overtemperature switch hot gas P1 High pressure sensor P2 Low pressure sensor UMC A15 Rev O 01 01 2015 English Mav nautic and industrial engineering B V The Netherlands tel 31 0 321 337467 web www mave nl email info mave nl Page 19 jueuoduJoo uo OU 10 UOHOSBUUOD SJIUM 9119818 SU YOOUD eu Je o41uoo e pejoeuuoo SI 941 JJ
18. d Vacuum test Installations with a refrigerant charge 10 kg A vacuum test has been performed by a vacuum of 270 Pa and a minimal holding period of 30 minutes pe M 5 Place and date of issue Name and signature of authorized Biddinghuizen 18 02 2015 person A F Managing director Mave B V NAUTIC amp INDUSTRIAL ENGINEERING CE 09 01 2015 T 001 Rev O Test Certificate Manufacturer Mav B V Address Loofklapper 14 8256 SL Biddinghuizen The Netherlands Product Airco Chiller Unit Series A AIV amp HC Mav B V the Netherlands declares that all manufactured chillers and AC units have been tested comprehansively and are all subjected to a full function test The function test have been carried out in the Mav test facility Test parameters R410a units This testing pressure on the low pressure side was 22500 KPa g 43 C This testing pressure on the high pressure side was 22600 KPa g 43 C water cooled R407c units This testing pressure on the low pressure side was 21750 KPa g 43 C This testing pressure on the high pressure side was 21750 KPa g 43 C water cooled R134a units This testing pressure on the low pressure side was 21000 KPa g 43 C This testing pressure on the high pressure side was 21000 KPa g 43 C water cooled Leaktest During the fuctional test a leaktest on all pressurised refrigiration piping is performed with use of leaktester Testo 316 4 AWE
19. e display contains readable data of the actual status of the chiller unit which are not changeable These data is marked with R Read only Settings are changeable and marked as R W Read and write By pressing the up down button the menu items will be showed starting from item 1 The display is protected against item changes Please contact factory if changes should be made Item 2 R W If the chiller unit is connected to the MAVEBUS 85485 circuit this number has to be filled in Make sure that every chiller unit has it s own unique number Item 3 R This shows the incoming chilled water temperature NTC2 Item 4 R This shows the outgoing chilled water temperature NTC1 Item 5 R This shows the temperature of the suction side of the refrigerant system NTC3 Item 6 R This shows the temperature of the fluid side of the refrigerant system after the condenser Item 7 R This shows the pressure of the suction side of the refrigerant system Low pressure sensor P2 Item 8 R This shows the pressure of the High pressure side of the refrigerant system High pressure sensor P1 UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web mave nl email info mave nl English i 0 E ud MAR I Page 21 Item 9 R W This parameter can be set for the temperature that the compressor switch on again after switching off This temperature is
20. e sure that the glycol is reaching or flowing through every component in the system The sea water system is never protected because of the fresh or salt water inside Empty drain the whole sea water system and fill it up with glycol to protect the system against freezing Make sure that the sea water system is protected from the water inlet through the hull up till the outlet through the hull UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl il inf nl x Sau e 0 web www mave nl email info mave n MAR I Page 27 17 Location components Electronic controller board PCB ei USE zz De oc ip TEN zog 400Vac input lm a EXE E Cable transit 400Vac ros High pressure sensor 1 High pressure check valve UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl il inf nl EU e 0 web www mave nl email info mave n M AR IX Page 28 Location components Compressor Condenser Hot gas pipe Low pressure sensor P2 HO j Suction line refrigerant H A ES D o a n Too AJ VA Tto c ON ns Evaporator UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web www mave nl email
21. equipment or property while installing or operating this equipment it is essential that qualified experienced personnel perform these activities using good judgment and safe practices Be aware that sytem pressure and electrical components reparations and maintenance on this system can be hazardous When working on this equipment always observe precautions described in the manual and safety markings on the product Electrical shock All power must be disconnected prior to installation and serving this equipment More than one source of power may be present Disconnect all power sources to avoid electrocution or shock injuries A Rotating parts The fan must be disconnected prior to opening access panels Motors can start automatically disconnect all power and control circuits prior to servicing to avoid serious crushing or dismemberment injuries Hot parts Electric Resistance heating elements must be disconnected prior to servicing Electric heater elements may start automatically disconnect all power and control circuits prior to servicing to avoid burns Safety Recommendations Always wear work gloves and a safety goggle When working with electrical tools wear ear protection Make sure a fire extinguisher is close to the work area Before repairing or maintaining the system switch off voltage at main panel or power source before opening any cover Failure to comply may result in serious injury T
22. ical parts the refrigerant should be removed It is not possible to replace components of the refrigerant system without emptying the refrigerant system The system is equipped with refrigerant sensors don t connect manual gauges to the check valves to measuring the refrigerant pressure This only creates a loss of refrigerant What can be checked by non certified persons Switch of the chiller unit To check if the quantity inside the system is sufficient the inverter cover has to be removed Wait untill the chilled water system is far above normal working conditions 15 20 C Start up the chiller unit and wait until the chiller runs around maximum speed Between 80 and 90Hz indicated on the frequency inverter The Sign glass should be clear and free of bubbles gt gt 2 UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web mave nl email info mave nl English i 0 E ud MAR I Page 26 Protection of the system during winter conditions A chiller system contains fluid and can be damaged by freezing The chilled water system is filled with glycol or a water glycol mixture and is normally protected against congelation Always check if the freezing level of the glycol is high enough comparing with the possible ambient temperature Replenish or refill the system to assure a certain safe freezing level if needed Run the whole system to b
23. iller unit is a very important step of insuring that the equipment operates in a trouble free manner Follow the instructions for the initial installation of the machine to avoid service problems The manufacturer assumes no responsibility for personal injury or property damage resulting from improper or unsafe practices during the handling installation service or operation of the equipment Maintenance or repair work should always be carried out by qualified people Whenever changes have been made to the original design of the chiller unit will make the warrantee void in these cases Mav will not be responsible for possible damages All risks are then exclusively for the user NOTE If you have any questions concerning the information in the manual replacement parts or the operation of the fan coil unit then please contact your supplier Or NAUTIC amp INDUSTRIAL ENGINEERING Mav B V Loofklapper 14 8256 SL BIDDINGHUIZEN The Netherlands T 31 0 321 337467 W www mave nl E info mave nl UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web mave nl email info mave nl English e 0 web www mav il info mav MAR I Page 3 2 Safety precautions The equipment covered by this manual 15 designed for safe and reliable operation when installed and operated within its design specification limits To avoid personal injury or damage to
24. ing the system can result in blocked pumps and growing pollution of the sea water system Check daily the next points Outside the chiller unit on fluid leakage from between fluid connections of the sea water and chilled water system Leakage of fluids above around the chiller unit s from other systems on board Abnormal sounds Water pressure in the chilled water system Sea water filter against pollution Maintenance every 3 months Flush the sea water system to remove barnacles and calcic out of the sea water piping and condensers See Page 26 Check the refrigerant pressure on the control display or the touch screen See Page 21 UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl il inf nl x Sau e 0 web www mave nl email info mave n MAR I Page 24 Instructions for cleaning flush the sea water system The wall temperature of the condenser can reach temperatures up to 100 C therefore it is possible that lime will precipitate on the inside surface Because lime has a bad heat transfer coefficient the efficiency of the chiller unit will decrease and a higher pressure in the high pressure side of the refrigerant system will arise Mostly a polluted condenser can be recognized that the refrigerant high pressure side is rising up by period By making a maintenance plan and note periodically the high pressure value a polluted condenser can
25. ircuit in temperature chilled water in sensor NTC2 103 Open circuit in temperature chilled water in sensor NTC2 104 Short circuit in temperature chilled water out sensor NTC1 105 Open circuit in temperature chilled water out sensor NTC1 Item 20 R W In this item the type of frequency inverter can be select Without inverter this item should be on none UMC A15 Rev O 01 01 2015 English Mav nautic and industrial engineering B V The Netherlands tel 31 0 321 337467 web www mave nl email info mave nl Page 22 MAR IX Item 21 R W In this item the reaction time of the compressor can be select 0 is a fast speed change higher reaction number will give a slower reaction of compressor speed change Item 22 R In this item the software version can be read out UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl il inf nl x Sau e 0 web www mave nl email info mave n MAR I Page 23 16 Maintenance After the chiller unit s is commissioned a regular check is preferred to keep the chiller s in reliable condition Written interval for maintenance is an indication depending on surrounding circumstances and running hours By experience the maintenance interval should be chosen Run the complete system at least one times a month to keep the pumps and other rotating equipment in optimal condition A long term of not runn
26. measured from the incoming water temperature Item 10 R W This parameter can be set for the temperature that the compressor switch on again after switching off This temperature is measured from the incoming water temperature Item 11 R W With this item the minimum refrigerant pressure can be set This pressure is measured on the low pressure side of the refrigerant system Below the set pressure the compressor will switch off Item 12 R W With this item the maximum refrigerant pressure can be set This pressure is measured on the high pressure side of the refrigerant system Above the set pressure the compressor will switch off Item 13 R In this item the maximum pressure from the refrigerant pressure Sensor is set Item 14 R W Start up delay The delay between the compressor switched off and on Item 15 R W With this item the minimum suction temperature can be set Under this temperature the display shows an error Item 16 R W With this item the maximum temperature of the refrigerant fluid can be set Above this temperature the compressor will regulate the capacity down Item 17 R In this item the running minutes can be read Item 18 R In this item running time can be read 1 is 1092hours item 29 in minutes is the total running time Item 19 R See fault register below Fault Error 51 High pressure sensor out of range 52 Low pressure sensor out of range 53 Hot gas over temperature 102 Short c
27. n the chiller is activated even when the water will reach the set temperature Standard this pump will only run in cooling mode If jumper j3 is placed the circulation pump will also run in heating mode If flow is needed for an external heater Pump is running 1 minute after the chiller is switched to the standby modus If a flow switch is installed in the fluid line the pump starts and runs for 20 seconds If the flow switch is not closed within 20 seconds the pump will be switched off again The compressor will not start before the flow switch is closed Standard the flow switch connection is bridged from the factory Sea water pump The sea water pump is only activated when the compressor is running The pump runs 1 5 minutes after the compressor is switching off If a flow switch is installed in the sea water line the pump starts and runs for 20 seconds If the flow switch is not closed within 20 seconds the pump will be switched off again The compressor will not start before the flow switch is closed Standard the flow switch connection is bridged from the factory UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl il inf nl X ES 0 web www mave nl email info mave n M AR I Page 15 13 Electric connections external heater and valve
28. o minimize the hazard of electrical shock and personal injury this component must be effectively grounded Only connect wires according to the circuit diagrams as shown in the system manual or system drawings UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl il inf ni x Sau e 0 web www mave nl email info mave n MAR I Page 4 3 General description The chiller unit is an electric powered water cooled chiller unit which is designed for boat applications The unit contains a compressor condenser and an evaporator The compressor is of the on off type which switches on or off depending on the temperature of the chillled water The sea water system is equipped with corrosion resistant materials Such as stainless steel and copper nickel to secure a long life time The evaporator is a brazed plate type which is made from stainless steel and brazed with copper Working principle The compressor will pressurize the cooling refrigerant in the system The heat of this pressurized gas shall be cooled down via the condenser by the sea water which is flowing through condenser Due to the temperature decrease by the cold sea water the hot gas will be converted to liquid The high pressure liquid refrigerant entering the expansion valve is quite warm The expansion valve removes the pressure from the liquid refrigerant to allow expansion from a liquid to vapour
29. pipe is the same as the inner size of the fitting Inner size of the fitting is much smaller then inner size of the pipe HX l Fittings with high reduction of the diameter increase the sound of the fluid because of the high velocity inside of the fittings Because of the pressure loss in every fitting the flow is affected adversely It will be advised that a calculation of the fluid system piping is made before installation This to secure the right piping diameters Normally we advise the fluid system with a maximum fluid velocity of 1 5m sec Protect the fluid system against condensation Piping fittings and valves must be insulated UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web nl email info mave nl English e 0 web www mave n il info mav MAR I Page 10 8 Cooling water system The chiller unit is a sea water cooled air conditioning system This means that heat from the boat will be transferred to the Sea water by the cooling process For the A15 we advice to use a water system with an internal diameter of 32mm Piping fittings and valves should be resistant to sea water and to a temperature of 50 C Connections on the chiller units should be made with anti vibration connections so that vibrations from the chiller unit will not be transferred to the boat The sea water pump must always be mounted in a horizontal position
30. t the chiller unit is connected by an flexible connection to avoid that vibration of the unit is transferred to the fluid system through the boat Beside of this we advise to use divisible couplings on the chiller unit to make it possible to disconnect the chiller unit without empty the complete fluid system Divisible couplings with ball valve e o y S y SA gt Rubber or flexible connection UMC A15 Rev 0 Mav nautic and industrial engineering B V The Netherlands 01 01 2015 tel 31 0 321 337467 web www mave nl email info mave nl English Page 9 7 Fluid system Cold fluid from the chiller unit will be transported to the fan coil units by a piping system To protect the equipment a glycol mixture must be used By choosing a piping material it must be secured that the piping material is resistant against glycol and can handle temperatures between 2 and 40 C If the system will be combined with a water heater the piping should be resistant against temperatures up to 80 C Materials which can be used is PVC U Cooling only PVC C copper stainless steel If you Have any doubts about which material should be used please contact us Beside the type of material it is important that a piping system is choosen with an equal size inner structure This mean that the inner size of the pipe is equal or almost equal to the used fittings or valves See as example below Inner diameter of the
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