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Technical Handbook For The Repair And Maintenance of Walk

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1. Chapter 5 Temperature Monitoring 1 Temperature indicators 1 1 Vaccine Vial Monitor VVM Vaccine vial monitors are heat sensitive chemicals applied to the vial label or cap They show whether the vial has been exposed to excessive heat since leaving the factory If the square is lighter than the circle the vial can be used unless the expiry date or other instructions dictate that the vial should be discarded sine Vial Monitor says the expiry date is not passed USE the vaccine USE the vaccine FIRST DO NOT USE the vaccine DO NOT USE the vaccine Cumulative heat exposure VVM start Discard point colour VVM start colour of the square is never snow white it always has a bluish grey tinge From then on until the temperature and or duration of heat reaches a level known to degrade the vaccine beyond acceptable limits the inner square remains lighter than the outer circle USE THIS DO NOT USE THIS VACCINE VACCINE INFORM YOUR SUPERVISOR Technical Handbook for Cold Rooms Beyond discard point square colour is darker than the outer circle 1 2 Fridge Tag Fridge tag is a 30 days tempera which is especially designed for ILRs This device records the Maximum and minimum temperature of every day for 30 days Device also indicates whether there has been any alarming temperatu situation in the past 30 days In Case WILLE a high or low temperature violation the device shows
2. TECHNICAL HANDBOOK WALK IN FREEZER FOR THE REPAIR AND MAINTENANCE OF WALK IN COOLER FREEZERS unite for children TECHNICAL HANDBOOK FOR THE REPAIR AND MAINTENANCE OF WALK IN COOLER FREEZERS Edition April 2009 unite for children 5 i o ILE EE a qe 1 FOR THE REPAIR AND MAINTENANCE OF e eere eee e eene nnn 1 5 02 2 22 0 02741 1 5 2 FOR THE REPAIR AND MAINTENANCE 1 1 4 2 5 2 0 10 0 2017 474 2 2 Chapter 1 Effective vaccine 2 1 1 55 2 2 ee beraten donet om N E 2 2 1 Planung VRC CHING 2 2 Ve Ail Cog DEP AME 3 2 3 accipi tta i ati eE ER 3 2 4 V ccme DOCU U OB accen MNT DUE 5 2 5 OO NA bun E 7
3. Recommended spare parts kits to be provided for normal operation a provision of a service contract covering routine and emergency maintenance requirements is generally available and details of installation commissioning guarantee period stated separately Technical Specifications Internal Temperature 209C 5 C adjustable i during 43 C continuous ambient ii 32 C continuous ambient iii 45 05 C day night cycle temperatures Construction Outer and internal plastic coated galvanized steel panels or non corrosive metallic panels or fiberglass panels Dimensions Internal height of 8 feet Floor dimensions 18 L x 12 B minimum 3 above the ground level Floor should be cement concrete and properly leveled and the panels are fitted on this Insulation Urethane foam or extruded polystyrene foam core bonded to non corrosive metal or fiberglass panels Door is provided with frame heating heavy duty lock with internal safety release shelving system and plastic curtains on the doorway Door s to cold rooms lockable with 100 fail safe provision for opening from inside Each entrance door has an incandescent vapor proof light mounted on the interior of the door section The door dimensions are normally 3 W x 6 H Dual Refrigeration system 100 standby with air cooled refrigeration units plug in type automating defrosting electric or hot gas having CFC free refrigerant are installed
4. e Check alternative stores to ensure that they are in good condition have adequate space and are capable of maintaining vaccine at the correct temperature There is no point moving Technical Handbook for Cold Rooms Chapter 1 Effective Vaccine Store stock to another cold room if the result is that all your freeze Sensitive vaccine is frozen and destroyed e Do not wait until an emergency occurs Rehearse the plans before they are needed e Prepare a list of emergency contact names addresses and telephone numbers and post a copy of the list in the vaccine store Keep the list up to date e Make sure that emergency contacts can be made both inside and outside normal working hours Technical Handbook for Cold Rooms Chapter 2 Cold rooms Contents The cold rooms in India have been sourced from various manufacturers It is not possible to provide comprehensive information of all the models in use however this section is based on cold rooms supplied by HURREE The information is by and large applicable to most of the models The information included in this section is Technical specifications of WIC WIF models Engineering diagrams for assembling and installation of WIC WIF Technical specifications of components of cold rooms Spare parts reference guide as used in GMSD Programming guide of cooling units compressor defrosting Trouble shooting guide 1 Technical specifications of cold rooms
5. 7 UJ Q pi D Q D et er D Centimeter JI JI m J 2 D O es B C3 r c D D O ct ct a 1 D gt D et o Cu D et o J 5 5 2 2 ct ct 2 2 D D Aj 49 49 o CL D et o J Hepatitis B Ice packs Kilo Watt Meter Micro farad A cu m D l S 2 ey lt N lt 7 _ c S E lt 3 xui S5 S g F D e D 2 8 9 2 gt x o 5 2 3 ect Abbreviation OPV Definition Oral Polio Vaccine Rotation per Minute Tetanus Toxoid Acknowledgement The technical handbook for repair and maintenance of cold rooms was prepared with technical contributions from State Health Transport Office SHTO Pune Government of Maharashtra Ministry of Health and Family Welfare Government of India and UNICEF Generous financial support from Norway India Partnership Initiative NIPI facilitated development of this training handbook Chapter 1 Effective Vaccine Store Contents Introduction This handbook has been prepared for refrigeration technicians for repair and maintenance of cold rooms freezer rooms It offers technical guidance and reference material for components of cold freezer rooms Introduction section guides
6. Chapter 2 Cold Rooms 4 Components of WIC F 4 1 Cold room panels These are pre fabricated insulated rooms assembled inside a store or larger room Suitable shelves are provided inside them for storing the vaccines 4 2 Cooling units This insulated room is kept cold by two nos of cooling freezing units mounted on its walls The working of the cooling units are controlled by their thermostat to maintain the inside temperature within 20 C to 8 in case of Walk in Cold Rooms and 259 C to 15 in case of Walk in Freezer Rooms One Cooling Freezing unit is sufficient to maintain the temperature in the required range The second unit is provided as standby Note Only one unit works at any time But in the old models of the WICs the thermostats of the units are so adjusted that one unit works when the inside temperature is about 5 C and goes off at about 4 and the other works when the temperature is about 7 C and goes off at about 6 Therefore when the temperature is around 5 C only one unit works But if due to door opening storage of new vaccines higher ambient temperature and power failure etc the temperature of the cold room rises above 7 C both the units work together When the temperature comes down to about 6 C the 214 unit stops and only the first unit works and maintain the vaccines at the lower temperature The evaporators fans of the cooling freezing units inside
7. When switching on the historical account is fixed to 5096 ON and 5096 OFF 52 Blinks alternatively S2 sensor fault S2 evaporator sensor with cold room faulty or short circuit temperature The end of defrost is detected by the maximim duration time set by C5 1 S2 and Blinks 51 S2 sensors faulty Check sensor 51 and 52 alternatively 6 Alarm System An Alarm system is provided to monitor the cold freezer room temperature It actuates Audio and Visual alarm immediately in case of the temperature goes down amp crosses the lower setting But when the temperature rises to the upper set limit it operates with a pre set delay In alarm condition pressing a button can stop the Audio alarm but Visual alarm will continue till the alarm condition prevails or the alarm system is switched off There is also a test button provided to test the functioning of the alarm system 6 1 Installation The alarm unit VHA 12 4 1 has to be mounted on a wall by 4 screws plate screw 0 4 2x22 Before that you must remove the top lid of the case Locations of the fixing holes are at the corners of the case After the case has been tightly mounted on the wall you should install the 9V battery into its holder Finally close the lid of the case It is possible to connect up to 4 temperature sensors to the VHA 12 4 1 Technical Handbook for Cold Rooms The audible remote alarm buzzer has its own connection positions as w
8. during alarm delay period S1 S2 gt 209C this shows an evaporator problem Defrost was ended by defrosting timer set through C5 parameter and not by sensor 2 on evaporator High Temperature alarm Cold room temperature is higher then high temperature alarm set through C6 Low temperature alarm Cold room temperature is lower then low temperature alarm set through C7 Technical Handbook for Cold Rooms leakage of refrigerant Note For negative application with capillary expansion device the evaporator not being filled enough F1 may appear To avoid that program an alarm delay longer then 45 minutes if necessary Fans are out of order Icing of the evaporator Note At the first startup F2 may appear Check the location of S2 Sensor 2 Maximum duration of defrost is too short increase time set in C5 Not enough defrost lower C3 time between two defrosts when intelligent defrosting is not used or lower C3 while this fault exist Message occurs only after alarm time delay set through C8 has reached Check cold room for high temperature Message occurs only after alarm time delay set through C8 has reached Check cold room for low temperature Chapter 2 Cold Rooms A1 is displayed Auxiliary input is closed S1 Blinks alternatively The condensing unit S1 sensor faulty or with works on its 4 last hours short circuited historical account
9. ALARM LCD screen If there have been no instances of temperature violation the comes on screen Fridge Tag has two modes namely monitoring mode and reading mode The device is always in monitoring mode unless user presses the READ button to get into read mode Once the device in read mode user can press READ button to go through the temperature history of past 30 days The cycle of reading the temperature history continues with Today s Maximum followed by Today s Minimum followed by yesterday s Maximum followed by Yesterday s Minimum and so on it continues for past 30 days The device returns back to monitoring mode after 30 minutes of not pressing the read button While showing the history in case of a temperature violation the device also shows the time in HH MM format for the duration of violation NOTE Fridge tag is meant ONLY for monitoring the temperature of vaccine stored in 2 to 8 C storage Technical Handbook for Cold Rooms Chapter 5 Temperature Monitoring 1 3 Freeze lag It is an electronic device that indicates whether the device has been exposed to temperature below 0 C for more then 1 hour It is different from Fridge Tag The device has 2 states OK and cross x The device stays in OK mode as long as it has not been exposed to freezing temperature Once the device is exposed to below 0 C the device is changed permanently to CROSS
10. 3 Building es LOTO s EO e er as 8 HB 10 CHABESE S COIB TOONIS 16 1 Technical specifications of cold rooms freezer rooms sees 17 1 1 specications Of WIC seserinis pu wet nbn d ORA er tome 17 1 2 specications of df m 20 2 Procedure Tor Installation of Cold acia csset tenet 25 2 1 Installauon of Pane 27 42 29 2 3 Installation of room light amp connecting door heater ss 29 2 4 Installation of pressure Ventilator Breeder ee 29 3 Engineering diagrams for assembling and installation of WIC WIEF e 30 euo of WIC m AR 41 4 1 PANELS eT rere 41 4 2 S 41 4 3 Cooling unit EUROMONZ 44 4 4 Cold freezer room lt lt 49 5 Cold room 49 5 1 SOLOING ER T MM 50 5 2 Modifying the master log settings uias repeats rc iier 53 5 3 I
11. be opened freely from inside and you wear proper winter clothing Switch off internal light when not needed Switch off the interior light as soon as you have finished working inside The light bulb gives off heat and this makes the refrigeration plant run longer than necessary Lock the door Keep the WIC F locked and make one person responsible for the key Make sure that a spare key is kept in a safe place Monitor storage temperature at least twice a day Technical Handbook for Cold Rooms Monitor the temperature of every WIC F at least twice day record it in the log book Stack vaccine correctly Make sure the sufficient space around the vaccines for air circulations Leave a gap of 5 cm from the wall and the vaccine box Do not allow overloading Do not keep vaccine on the floor of the WIC F Stack the vaccine in Shelves only Never keep freeze sensitive in front of evaporators Never keep any vaccine underneath the cooling units Dripping water may damage vaccine boxes Never keep any loose vial in the cold room Follow EEFO and FIFO Store vaccine so that Early Expiry First Out EEFO and First in First out FIFO could be easily followed Necessary adjustment should be made for VVM status Make sure that vaccine is stacked on the shelves systematically so as to encourage EEFO VVM stock management Vaccines with early expiry or advance stage of VVM should be stored on top or front for
12. cold rooms to function effectively Sizing repair and maintenance of generators The capacity of a generator as power supply backup in the event of grid power supply failure should be adequate to cover the power requirements as per numbers types and sizes of cold rooms installed in the vaccine store Also adequate provision of fuel supply repair and maintenance should be made available on time This section guides user on technical specifications of generators and its maintenance 1 Generator and control panel To keep the WIC F units running in the event of mains power failure a stand by generator is provided In case of power failure the generator can start automatically A Diesel Generating set has three parts Engine Alternator and control panel connected together The KVA rating of the alternator and panel depends upon the power required to run the cooling units and how many cooling units are connected functioning at a given time 1 1 Engine Suitable size diesel engines are coupled with the alternator The engine should be water cooled generating sufficient torque at 1500 RPM It should have provision of auto manual shut down at low lubricating oil pressure and high temperature 1 22 Alternator The alternator generates AC voltage of 440 volt in case of three phase and 230 volt in single phase at 50 cycles sec frequency The alternator of the generator has two main parts a Rotor It is a rotating part of t
13. early delivery Avoid freezing Vaccine can freeze inside a WIC for any of the following reasons 1 Vaccine stored too close to evaporator The air coming from the evaporator may be below 09 until it has mixed properly with the air in the room The danger zone typically extends for 50 cm in front of the evaporator Vaccine must not be stored within this zone 2 Thermostat set incorrectly This may reduce the temperature throughout the room to below 0 e Temperature monitoring is not regular that in turn fails to identify low temperature for corrective action e Not properly conditioning the ice packs before putting them in cold boxes for vaccine transportation Procedure to condition the ice packs 1 remove ice packs from freezer 2 keep at room temperature on table to allow their temperature to rise to 0 C beads of water cover their surface and ice inside moves on shaking 3 use the ice packs in cold box vaccine carrier Now ice packs cannot freeze the vaccine Technical Handbook for Cold Rooms 3 In cold climates where the cold room is located in an unheated Space the temperature outside the cold room is close to or below 09 the vaccine inside the room may freeze A cold room in a cold climate should be built in a space that is permanently heated Alternatively it should be fitted with a thermostatically controlled heater circuit that maintains the inside temperature between 2 C and 8 C even if th
14. enters the WIC F 2 the amount of cold air that escapes when the door is opened If plastic curtain is fitted check to ensure that it is un damaged If it is damaged instruct the maintenance technician to replace it Check stock any vaccine stored for more than recommended period Check the foundation bolt of compressor Check the lubrication oil of Generator and service it if needed 5 Monitor routine and emergency maintenance Ensure that the service agency or maintenance technician carries out all routine servicing as recommended by the manufacturer s within warranty period and under the AMC of the WIC F and the cooling and monitoring equipment Ensure that you receive a copy of the service checklist as evidence that the work has been correctly done Some of the necessary routine checks are e Oil and refrigerant leak check e Drive belt tension check e Routine cleaning of compressor components including the condenser coil and fins e Door seal check e Temperature control check using the temperature charts as evidence e Replacement of components before failure occurs as part of a planned preventive maintenance PPM regime Technical Handbook for Cold Rooms Chapter 4 Power supply generators Contents Standards of electrical connections Cold rooms should be provided with continuous quality power supply This section guides users on quality of electrical connections and amenities required for
15. i Alarm relay 12 V DC 12 V DC failure S1 Main switch for Alarm center Technical Handbook for Cold Rooms 4 User 00 WVA Z LINN liniosto TOSLNOO OCA PE Alddns YOSNIS D 9 0 5 E 2 e 5 O NH3AOO2 LNOYS 2 AX 31xv JAIXO e A LNIOd SiNIMSIVIN 5 5 TIS Nid lt oe T T Ss MN3AO2 M3N25 3Hn1vHa3diWal 5 AYYNNH x S D D em F Chapter 2 Cold Rooms A3 Recorder unit Light battery 3 4 V size AA IEC R6 Internal Change over relay Internal External power Technical Handbook for Cold Rooms 704 97 AOOH 4102 IOHLNOO HOIVH3N39 AH3LLIVH J3NION3 LINSHID IOHLNOO a M A lddfiS H3AAOd SIOVINOO 1 8 2 15 ONY 9 L OS LH EXC sj c 5 5 dION310 63141 TS d3ldv LdHv 18S OL 9 STIV 3NIDN3 NAHM 95072 e 45 T NOI 5 i KS penra dn me unc m Md HOlvVH3N39 s E AMOWAIN 0 25 AINA Ew T saul z C 1HVvd LINN 1OHINOO T WOOBGIOONFXIVA Al e S D r 3 P
16. or High Engine Temperature it stops the engine and gives alarm IMPORTANT The 12V battery on the generator is not only for starting the engine but also for supply of 12V DC to the Generator Control Panel So if the battery voltage is low or the battery is discharged both will not function properly As a result in case of power failure neither the generator will start automatically nor will it be possible to start manually 1 4 Installation The DG set should be installed on a solid concrete foundation having at least six reinforced foundation bolts Keep at least 1 meter away from the surrounding walls and other equipments to prevent fire hazards and provide adequate ventilation The DG set should operate only on the leveled surface Keeping set on unleveled surface may result fuel spillage and oil pump may not get the lubricating oil causing seizer of crank shaft bearings Never run the DG set in close area the exhaust gases contains poisonous carbon mono oxide Ensure the smoke is released in the open area at a sufficient height outside the building where WIC F is installed Technical Handbook for Cold Rooms Chapter 4 Power Supply and Generators gt Keep DG set in locked condition so that no unwanted person may access the DG set gt The DG set should be earthed properly Never run the set without proper earthing gt Always use recommended lubricating oil by the manufacturers depending u
17. store and its access requirements Using the information given above calculate the floor area required for the vaccine store and the size of delivery vehicles 2 Review potential sites Consider the following alternatives a Space in a government warehouse or other government building that can be adapted for the purpose b Commercial warehouses that can be purchased or rented c Empty sites that can be developed 3 Assess natural hazards Consider the following a Are any of the potential sites at particular risk from natural hazards e g tidal surges storms or earthquakes b What precautions can be taken to guard against these risks c If any of the preferred sites were to be severely damaged how would this affect the routine immunization programme and a post disaster emergency response 4 Compare the suitability of possible sites Consider the following issues before a site is finally selected Access a Is the site close to the relevant transport links including roads and airport b Is the site well served by public transport Public transport is needed by store staff It may also be required by health workers when collecting vaccine c Is the site conveniently located for permanent and supervisory staff d Is the route to the site accessible throughout the year e Is there adequate access and parking space for vehicles Services a Does the site have a reliable mains electricity supply Technic
18. the cold freezer room blow the cold air from the evaporator and circulate it inside the room They run continuously Technical Handbook for Cold Rooms condenser fans of the units outside the cold freezer room cool the condenser coils and they run only when the compressor is running and sufficient pressure builds up in the condensers Defrosting of the evaporator is done automatically by the defrost timer in the Master Log at pre set intervals for pre determined periods This allows the frost to melt and drain out Table 1 Components specification Description Specification Cooling unit WIF 16 20 m3 Compressor Model LTZ44 HM4VE Thermally protected Crem Compressor Make Maneurop MPN 36A Reciprocating Model LTZ50 HM4VE Thermally protected Technical Handbook for Cold Rooms Description Specification Refrigerants 507 404 Condenser fan Make FMV Made in France Voltage 230 v 1 2Amp 230 w Evaporator fan Type A40 4 PL25 Voltage 230V 1 9A RPM 1500 RPM Air flow 5000m3 h Temperature recorder DC dry battery 1 5 volt D C Model D 31690 Temperature supervisor AC Adaptor 9volt D C Battery Technical Handbook for Cold Rooms Chapter 2 Cold Rooms Table 2 Refrigerants for various compressor models 1 pom 64 AVM R134a CFC free Walk in Cold Room 16 5 c capacity pe 73 AVM R134a CFC free Walk in Cold Room 20 c capacity 3 MTZ 8
19. the reader on how to use this book Guidelines for effective vaccine store Cold room is the storage facility where large quantities of vaccines could be stored for longer duration Cold freezer rooms have been installed at National Stores GMSD also referred as primary stores and State Regional Divisional stores also referred as intermediate stores To effectively manage these vaccine stores WHO has issued guidelines WHO V amp B 02 341 This section has incorporated these guidelines for ready reference These provide general rules for deciding the ideal location of cold freezer rooms and establish required standards of electric supply and power connections It also provides the standards on adequate size of vaccine storage area packaging area and store keeper s layout How to look after cold room and freezer room This section guides users on basics of how to look after the cold room and freezer room Guidelines for establishment or improving primary and intermediate vaccine stores Vaccine and Biologicals World Health Organization Geneva 2002 7 7 1 Introduction One of the most important links in the cold chain is Walk in Cooler Freezer Rooms WIC F Walk in coolers WIC are used for bulk storage of vaccines at 29 C to 8 C and Walk in Freezer WIF for storage of vaccines at 25 C to 15 C WIF also support preparation of ice packs IP at State level o
20. 0 AVM R134a CFC free Walkin Cold Room 32 cum capac LTZ028 4VM R404a free Walk in Freezer 12 cum poa free Walk in Freezer 16 20 cum LTZ 050 4VE CFC free Walk in Freezer 32 cum TAJ 4511 A CFC Walk in cooler 16 5 cum Huurre ASPERA J6626M CFC Walk in freezer 32 cum Huurre CAJ 4511 CFC Walk in cooler 16 5 cum Foster 4 3 Cooling unit EUROMON2 Remember to physically inspect the equipment upon arrival for any B damages Report within 48 hrs for damage to primary packaging or equipment itself on E euro n case of medium or long term storage of cooling unit without use leave protective insulation elements in position and store in safe and dry area MMM I gl HIII Technical Handbook for Cold Rooms Chapter 2 Cold Rooms Figure 15 Mono block layout The monoblock unit may be easily wall mounted in the cold storage room At least two fastening points have been incorporated on the compressor side to fasten with screw the monoblock unit outside the cold storage room Attention The monoblock unit must be installed with a spirit level to ensure the inclination required for evacuation of defrost water is respected Cutting the cold storage room wall The monoblock unit is installed in the cold storage room wall either by creating two recesses in the top panel section see fig A or by c
21. 2 m E 5 CN e 3 0m 3 0m e Ce 20 cubic metres 15 cubic metres 10 cubic metres 5 cubic metres roof mounted chillers roof mounted chillers Figure 1 Standard sizes of cold rooms high level ventilation opening or extract fan opposite inlet AS 222 alternative roof mounted refrigeration unit for roof mounted unit danger zone 22 222 shown wall hun T 222 2222 hatched refrigeration unit low level ventilation opening Fy 25 bottom 4 2 2 to 2 3 lt 4 0 5 1 5 gt shelf raised plinth SECTION THROUGH TYPICAL under cold room COLD ROOM INSTALLATION floor desirable e Technical Handbook for Cold Rooms clearance at sides and rear be minimal but a zone for cleaning min 0 6 metres wide is desirable shelving for vaccines outside danger zone 2222 danger zone for P ur QU Ur 774 ffeeze sensitive 25522 single or EN ccines show 3 phase 4 hatched electrical gt outlet wall hung pE TT refrigeration S E init gt drain for floor washing low level high level ventilation ventilation for diluents opening or extract fan Figure 2 Overview of a vaccine store with a cold room The internal height of WIC F where stock is moved by h
22. 4 Charging relay Code 0229 Relay Code 0352 Compressor relay CAJ4511 Code 0116 FOSTER cold room Generator panel FOSTER cold room Technical Handbook for Cold Rooms Chapter 6 Spare Parts and Tool Kit Contactor Contactor K 1 Code 0093 HUURRE cold room Contactor K 2 Code 0094 Compressor contactor Code 0854 HUURRE cold room HUURRE cold room NETS ff tA ii Auxiliary contact for K1 K2 Main contactor Code 0156 Alternator contactor Code 0160 Code 0348 HUURRE cold room FOSTER cold room FOSTER cold room Capacitor Capacitor fan motor Code 0361 FOSTER cold room Capacitor fan motor Code 0048 HUURRE cold room Technical Handbook for Cold Rooms Condenser evaporator fan Code 0047 HUURRE cold room Fan motor blade Code 0113 FOSTER cold room Condenser evaporator fan Fan guard Code 0114 FOSTER cold room Code 0841 HUURRE cold room Circuit breaker 16 A Code 0091 amp 849 HUURRE 16 5 gt cold room F 4 4 78 M PCB KAP 4 Code 0100 HUURRE cold room Technical Handbook for Cold Rooms Circuit breaker Code 0340 HUURRE FOSTER cold room PCB CKT Code 0099 HUURRE cold room Chapter 6 Spare Parts and Tool Kit Diesel generator set w e gt Battery charger Code 0337 Gasket set Code 0073 Auxiliary bloc
23. Handbook for Cold Rooms Multilog has been designed to perform two major tasks It records the temperature from installed and connected sensors at a defined frequency The data logger is triggered ON to start recording through the computer software The data logging however does not require the computer intervention The computer is required to trigger the data logger to start recording and to download the recorded temperature readings The computer intervention is also required to reset the data logger to clear the memory The second function of Multilog is to raise alarms in case of temperature violation Description Specifications Maximum number of readings per Temperature recording range 30 to 70 Deg Celsius Equipment operating temperature 30 to 0 Deg Celsius Accuracy of temperature 0 5 Deg Celsius Data automatic download on computer Instant temperature Other features monitoring raise audible and dial out alarm on temperature violation Figure 17 Specifications of 16 sensor data logger Logging temperature data The Multilog is programmed to record the temperature from 16 sensors at the pre set frequency intervals The Multilog has the capacity of recording storing 2000 temperature readings The frequency of temperature recording can be between 1 minute to every 60 minutes The recommended frequency of recording temperature is every 60 minutes and the device therefore is capable of recording the temperat
24. NIT 1 OR II HUURRE COLD ROOM PAGE 27 Technical Handbook for Cold Rooms Chapter 4 Power Supply and Generators 1 6 Maintenance schedule of generator HONDA G 400 MAINTENANCE SCHEDULE CLEAN amp ADJUST SPARK PLUG CHECK amp ADJUST IGNITION TIMING se CHECK amp ADJUST x VALVE CLEARANCE CLEAN COMBUSTION CHAMBER CLEAN FUEL TANK CLEAN FUEL LINE v BY EXPERIENCED TECHNICIAN ONLY ENGINE OIL CAPACITY gt 1 2 9 SPARK PLUG gt 0 6 TO 0 7 MM VALVE CLEARANCE INLET gt 0 06 TO 0 12 MM EXHAUST 20 09 TO 0 15 MM ENGINE OIL gt SAE 10W 40 DEPENDING AMBIENT TEMP CONSULT HANDBOOK R P M 23000 gt 10 FUEL TANK CAPACITY gt 10 Liters HUURRE COLD ROOM PAGE NO 29 Technical Handbook for Cold Rooms Chapter 5 Temperature monitoring Contents Temperature monitoring devices Monitoring of cold room temperature ensures that the vaccine has been kept in secured conditions This section provides user with technical guidance on various types of temperature monitoring devices and how to operate them Maintenance of temperature monitoring devices Temperature monitoring devices especially the mechanical devices require regular maintenance This section provides the list of spare parts and serviceable components of temperature monitoring devices WHO recommends monitoring of the temperature of all cold chain equipment includin
25. Provide adequate layout space for icepack conditioning 25 icepacks require about 1 0 m2 of work surface 3 The vaccine packing room should be air conditioned in hot climates and heated in cold climates Working temperature between 15 and 25 centigrade 4 Direct sunlight should be excluded using external shading curtains or blinds gt Materials Organization diagram Supervision E x ifle le e Ls Notes D L 44181411 1 The worktop should be about 5 0 75 metres above floor level 2 2 If additional area is required for conditioning install sink icepack icepack shelves between 25 to 30 freezer conditioning gt wide at 30 cm centres above TIE the work surface L a 23 Qi 93 E packed boxes vaccine vaccine line packing coldbox 0 metres Layout of packing area Figure 3 Organization diagram and layout of packing area The packing area should be laid out so as to encourage a logical flow of work Vaccines should be moved as little as possible in order to minimize the risk of breakage There should be a sink in the packing area for hand washing and provision for hygienic hand drying Technical Handbook for Cold Rooms 2 5 Choosing a site The checklist below outlines the main steps in the process of site selection 1 Determine the size of the
26. R SWITCH OUTSIDE VIEW INSIDE VIEW SWITCH FOR ALARM CENTRE 51 TEST BUTTON RED S2 THERMOSTAT SWITCH SWITCH CIRCUIT DELAY TIMER FOR ALARM P1 BREAKER MAIN ON SIGNAL LIGHT H2 INDICATOR FOR ALARM RED GREEN SIGNAL LIGHT GREEN FOR DEFROSTING NETWORK VOLTAGE INDICATOR YELLOW COOLING UNIT ALARM CENTRE Figure 9 Schematic diagram of cooling unit Technical Handbook for Cold Rooms L1 z vc WOO 6102 LINDYID 1 5 L NVSOVIQ 9 mn E e VAOEZ Ov E A OOP OV E A DOr ow Be ADF Qv GE ACI AHO 20 71 v t HOI v H 3N359 HOM AK Il Imm FLINN DNITO QS WD WD 01 D a Q 21 ooo oie ae i P QuiOcIOTL D 0 OS Ob OL Ol N Zd d al 9 Fav 10 biu P ELJ ZM E i HS H N Figure 10 Power supply control circuit L LYVd LINN TOHLNOO WOOd 0109 NI MTVAA Technical Handbook for Cold Rooms 2 D 2 2 F1 10 A K1 circuit F2 Circuit breaker 16 A Generator power circuit signal light Red Engine failure indication signal light Yellow Drive Memory K1 Contactor Network power 1 1 110 10 K2 Contact
27. Refrigeration units are tropicalized to make them suitable for ambient temperature up to 45 Suitable standby generator set diesel operated 220 240V 50 Hz Single phase or 380 400V AC 50 Hz three phase depending upon voltage requirement of the WIF is installed Output normally is Technical Handbook for Cold Roo ns Suitable to start and run both the cooling units The diesel tank capacity should be minimum 8 hours continuous running Generator Should conform to CPC Guidelines on sound proof canopy type Complete installation including earthing and civil works and fitting Should be done such that the smoke should be emitted outside the generator room and building Generator normally have complete automatic control and battery system Wall mounted seven days digital thermometer of 4 digits LCD LED Display with data logging capability of 7 days with suitable printer for report generation with remote sensor is provided for High and Low temperature alarm unit is also included Condensing unit s generally comprises of compressor forced air condenser oil separator liquid receiver to carry full charge filter dryer with flare connections service and isolating stop valves high and low pressure dial gauges and oil level sight glass If the WIF has gross volume of 16 cubic meters approximately then the internal volume is around 14 cubic meters Storage conditions of WIF is maintained at 20 C 5 C continuously cont
28. V Display shows dd permanently during the defrost The cold room temperature can be Displays the cold room temperature seen by pressing V during defrosting Defrosting can be stopped by Defrosting stops and cold room will switching OFF and ON resume back the operation Note Manual defrosting moves the automatic defrosts The next one takes place after the time set in C3 if CO is inactive or equal to zero Control and modification of installed parameters Table 8 Control and modification of installed parameters Display shows Installer flashing Press and V atthe same time for 3 seconds Validate by pressing V Display shows C1 Alternating with the parameter value parameter be modified using Change the default value of selected parameter and and then validate with V Each new press on V displays the Parse through all the parameters and next parameter with its value change value as desired Technical Handbook for Cold Rooms Chapter 2 Cold Rooms Note It is necessary to validate the last set point to return to the normal display mode Without manipulation of the keyboard the display turns to the normal mode after 4 minutes ME 9 9 3 buttons pressed Cold Room In temperature display will change to In Master log is ready Press V In will change to Cl Master log is sensing value of CI CI Press V w
29. ace switched ON defective shorted Temperature recorder not 1 Winding of working transformer FB 1 burnt 2 Relay contact defective 3 3 4 volt cell low battery 4 Defect in circuit 1 Re wound and refit 2 Replace contact relay or dry cell 4 Check circuit and repair Alarm does not sound A1 sounder defective Connect or Replace sounder or disconnected Generator Engine difficult to 1 No fuel in tank ora 2 Loose broken fuel pipe 3 Faulty fuel injector nozzle Engine starts but fires Lack of fuel supply intermittently or stops soon Water dust in fuel Fuel filter chocked Faulty injector fuel pump Low engine oil pressure Technical Handbook for Cold Rooms 1 Fill the tank 2 Tight or replace the fuel pipe 3 Grind and calibrate the injector or replace if required Tighten all fuel connections Drain the fuel tank and refill clean fuel Replace the filter Check and replace injector Calibrate fuel pump Page 108 Chapter 7 Trouble Shooting Engine lacks power with Lack of fuel supply Fill the fuel tank dirty exhaust Chocked Air Cleaner Chocked Exhaust Clean or replace if required Silencer Clean silencer Over heating Over loading Avoid over loading Failure of water Check the system supply Check oil level and top up if Lubricating oil level necessary low Technical Handbook for Cold Rooms Source of information 1 A OND 10 11 User s handbook fo
30. ack the vaccine for dispatch and an office for the storekeeping staff If possible the different activities should be housed in the same building although bulky consumables such as injection equipment and spare parts may have to be stored elsewhere A list of recommended tools amp instruments is given separately towards the end of this handbook Technical Handbook for Cold Rooms 2 2 Vehicle loading bay The detailed design of a vehicle loading bay is governed by the size and type of vehicle used Consideration should be given to 1 Access The loading bay and the route to it must be planned to allow easy access for the largest vehicle used 2 Security Vaccines are high cost value The loading bay area should therefore be visible from the storekeeper s office to ensure security 3 Weather protection A loading bay should preferably have a projecting canopy to protect workers vehicles and vaccines from sunlight rain or snow during loading and unloading 4 Loading dock Delivery vans can be loaded from ground level However it is more convenient to load and unload lorries from a loading dock that is at the same level as the floor of the vehicle This makes it possible to use a trolley to wheel vaccine into the vehicle A raised loading dock should be between 1 2 and 1 4 metres above the vehicle parking area Ideally it should be built to match the height of the delivery vehicle 5 Special requirements for refrigerat
31. al Handbook for Cold Rooms b Is there a stand by generator c Does the site have a reliable telephone service Security a Would the site be secure b Could the store be properly monitored and supervised outside normal working hours Site development a Is the site well drained and without any risk of flooding b Are ground conditions suitable for building economically c Could the site be developed at an acceptable cost 3 Building standards Vaccine stores should be housed in permanent buildings which should be designed and constructed to a good standard that is appropriate for local climatic conditions Temporary buildings should be avoided since it is difficult to relocate WIC F They are rarely satisfactory and are expensive to maintain If the store is in an area affected by flooding it should be on high ground or raised above flood level loss of a major vaccine store in a natural disaster has potentially life threatening consequences for the population concerned If an existing building is used it must be in good condition If necessary it should be repaired and upgraded first The following minimum standards are desirable in any vaccine storage building Most are essential in a primary or intermediate store Roof and ceilings Roof and ceiling of the cold rooms should be in good condition completely free from leaks Roof space should be insulated and or ventilated in hot climate areas and insul
32. alibrate the reading of the actual channel Thats synonymous to correcting a possibly inaccurate reading The correction is done by setting a certain offset value on the display An example The alarm unit shows 7 although the correct temperature would be 5 To correct that value an offset of 2 should be added in order to get into it Set the display text until Ic 2 reads on it The calibration range is from 9 to 9 Set the desired calibration value by pushing and keeping down the SET button while you tap either UP button or DN button to adjust the value up or down When the wished value has been reached release the SET button Upper limit delay displayed 1 99 or 1 NN The colon character reminds you of the upper limit delay setup Set the desired upper limit delay by pushing and keeping down the SET button while you tap either UP button or DN button to adjust the value up or down When the wished value has been reached release the SET button 6 4 Maintenance The 9V battery should be replaced after one year of duty or after long power cut periods In Alarm condition acknowledge by pressing the Red button on the indicator unit This will stop the Audio signal only but the blinking of the indicator lamp LED will continue till the alarm condition is over or Alarm unit is put off Now ascertain the temperature in the cold Technical Handbook for Cold Roo ns room fro
33. all or a SMS in case of temperature violation The dialer can be configured to dial out and alarm up to 6 people 6 phone numbers The dialer has an online acknowledgement feature and stops alarming people once the recipient of the call acknowledges the call Organization of Multilog The 16 sensor Multilog is designed to read the temperature from 16 sensors There are 4 boards inside the Multilog Each board connects to 4 sensors each Each board is connected to computer using serial port This requires 4 free serial ports at computer end PCs are normally not equipped with 4 slots of serial ports hence a serial port multiplier card is supplied with the Multilog This card should be inserted in the free PCI slot The card comes with a CD ROM of software driver files The software driver files once installed adds 5 new ports to the computer hardware 1 for the serial port multiplier and 4 additional serial port slots Each of these newly added serial ports connects to the Multilog boards The hardware setup is complete by connecting all the 16 sensors 4 sensors each in 4 boards to Multilog and connecting 4 serial cables from Multilog to computer serial port Multiplier Contents of Multilog set Technical Handbook for Cold Rooms Chapter 5 Temperature Monitoring The Multilog set contains following items Table 11 Contents of multilog set UT This box should be installed on a wall Multilog box next to the computer
34. and 25 C Loss of potency due to heat Vaccines that have been exposed to temperatures above 8 C may lose their potency over time The vaccine vial monitor VVM must always be used to guide decisions on the use of vaccine Freezing The T series of vaccines DTP DT dT Td TT HepB liquid Hib and liquid pentavalent vaccine should always be stored between 2 C and 8 C as they are damaged by freezing they may also be damaged by exposure to freezing temperatures HepB is the vaccine most sensitive to freezing temperatures The most common cause of exposure to freezing temperatures is the failure to correctly condition ice packs prior to transport To reduce the overall risk of freeze damage to vaccines one should follow the best practices as outlined in the Aide memoire for prevention of freeze damage to vaccines given at the end of this manual WHO IVB 07 09 If it is suspected that vaccines have been exposed to freezing temperatures perform the shake test see Annex 3 before deciding whether the vaccine is damaged or not A VVM does not indicate if a vaccine has been frozen Standard operating procedures in WIC F Keep door closed amp locked Use internal plastic strip curtain Avoid opening the WIC F door unless it is absolutely necessary to do so If the WIC F is not fitted with an internal plastic strip curtain always close the door when you are working inside Important Check before hand that WIC F could
35. and should not exceed 2 3 metres This limit ensures that the vaccine on the top Shelves is accessible without the use of steps WIC F should be planned so that they accommodate the greatest possible length of Shelving taking into account the locations of the entrance door and the refrigeration units A square plan is not necessarily the most space efficient especially in smaller units Vaccine boxes should be arranged so that there is free movement of air between the vaccine packages which should be stored about 5 cm away from the walls of the room This allows air movement behind the stock and ensures an even temperature Slatted shelving also assists air circulation and is therefore preferable to solid shelving 2 4 Vaccine packing area Figure 3 is a schematic layout for a typical vaccine packing area The size of the space required depends on the maximum daily transaction and the number of staff employed The packing area should connect to a direct route between the WIC F and the vehicle loading area It must not form part of a main circulation route because it has to be kept cool possibly by air conditioning and secure Vaccine packing involves a number of linked activities all of which should be accommodated in the same space Technical Handbook for Cold Rooms Chapter 1 Effective Vaccine Store Notes 1 Size of packing area depends upon number of icepacks and ice pack freezers required for maximum daily workload 2
36. are 5 1 Factory setting Table 3 below shows the default factory settings for each of the parameter These settings are different for WIC and WIF as indicated below Table 3 Default tactor settings of master loo CO Speers GIG CS Time between z dekos 6 o2 TIE C6 C High temperature default difference C7 9C Low temperature default difference Technical Handbook for Cold Rooms C8 min Alarm delay time 1 1 9 0 9 Goins eno Tead oniy Compressor Operon OO Description of parameters C1 and C2 Set point and difference 3 Time between defrosts Sets the time in hours between 2 defrosts when parameter 0 0 energy saving Defrost inactive When C022 3 4 5 6 7 or 8 sets the maximum time between 2 defrosts 4 End of defrosting temperature When defrosting is electrical or hot gas L2 or L5 sets the cut off temperature for battery heating measured by sensor S2 Note The value of C4 should be checked as mentioned in the subsequent section and use only recommended Settings C5 Maximum defrosting time Sets the defrosting time for programs using air defrosting L1 For other defrosting systems the heating time is limited in case of Sensor 2 S2 malfunction Note C5 0 means no defrosting Technical Handbook for Cold Rooms 1 2 3 4 5 Defrost sta
37. are coated with ice more than 6 mm thick the evaporator needs defrosting and there could be a defect in the defrosting system Ask the service agency or maintenance technician to check Check the alarm system Press the test button The alarm should sound If it does not the alarm may be faulty Ask the service agency or maintenance technician to check it immediately Check the store 1 Stack as per EEFO FIFO 2 Check VVM 3 Check most freeze sensitive vaccine are they frozen Run the stand by Generator Check the oil and fuel levels and fill up if necessary Check the battery electrolyte level if the battery is of the open type Run the generator until it has warmed up and make sure that it is operating correctly Technical Handbook for Cold Rooms 4 Monthly checks Check the room enclosure Check the WIC F enclosure every month to make sure there are no major problems Check the panels Check the bottoms of the panels to see if there are any signs of rust Rust may occur if the panel coating is damaged and if water is left after the floor has been washed and that collects under the floor panels Inspect the panel joints internally and externally There should be no evidence of movement along the joint lines and no sign of condensation or ice build up If the joints are not tight and well sealed the panels may absorb moisture This reduces the efficiency of insulation Furthermore moisture may freeze inside the join
38. asten the mono block unit to the cut out section Insert the unit cooler section into the cold storage room 4 4 Cold freezer room control panel The cooling freezing units run from 230 400 volt single three phase 50 Hz AC power supply normally form the mains Network power and in case of its failure from the Generator power The Cold Freezer Room panel receives 1 3 phase electricity from the Generator Control panel Either mains or Generator power and supplies 1 3 phase power to Cooling Freezing units and single phase 230V power to room lights Door Heater Alarm system adapter and also to the Pressure Relief Value heater in case of WIF 5 Cold room programming The functioning of cold room can be programmed through the master log Master log should be used to configure the following parameters 1 Set point Compressor cut off point in Degree C Technical Handbook for Cold Rooms Chapter 2 Cold Rooms 2 Differential Compressor start trigger point 3 Defrosting cycle 4 Alarm settings Low and high temperature alarms 5 Functioning of evaporator and condenser Cold rooms that are supplied with Master log have factory pre settings that can be used to standardize the required mode of cold room operation CAUTION Master log should only be modified by technically qualified personnel when required The faulty settings can damage the vaccine in bulk volume and will also cause damage to cold room hardw
39. ated in cold climate areas Ceiling should be in good condition and freshly painted The ceiling should completely seal off the roof space in order to protect against dust and pests Walls and columns Technical Handbook for Cold Rooms Should be good condition free of cracks and other structural defects Free from rising or penetrating damp termites Insulated in cold climates Insulations should be nicely finished internally and externally to a good standard The internal finishes should be dust free Windows screens and doors Windows should be in good condition with no broken glass and should have secure locks or catches All window openings should be fitted with security grilles All external doors and all internal doors to rooms containing valuable items should be fitted with security locks Floors Flooring should be smooth level and completely free from rising damp Suitably finished with floor paint tiles terrazzo vinyl sheet or some other washable dust free surface Floors on which cold stores are to be built must be leveled to a tolerance of 3 mm over the area of the cold store It is desirable for cold stores to be raised on a low plinth 25 50 mm This prevents water used for floor washing from running under the floor panels Alternatively the junction between the cold store and the floor may be sealed with waterproof mastic Fire protection The building should be easily accessible to the fir
40. dened by about 5 mm Cut file the sided After fitting the Cooling unit 1 install the door panel Important Keep the door frame firm in position by fixing pieces of plank timber with screws to the frame and fixing the other end of the plank timer on the middle roof panel Otherwise there is a danger of the door falling down Install the other front wall panel and mount the Cooling unit 2 on it from the open side by lifting and bringing over the panel Install the last side wall panel and then the last corner panel Install the front roof panel Fit the floor strip and the front strip on the threshold of the door with screws Fit the plastic curtain on the door from inside with 6 screws by drilling holes at suitable positions if necessary Fill up all the space in the four grooves in the two front wall panels On which the freezing units are mounted with PUF foaming supplied Technical Handbook for Cold Rooms Blot for panel locking key foam tongue urethane foam panel sealing core bonded to gasket steel panels plastic coated galvanized steal plastic coated outer panel galvanized steel inner panel foam groove no cold bridging at joints between panels Figure 8 Details of typical insulated panel 2 2 Installation of shelves The rails for mounting the shelves should be fitting touching the roof and the other end being about 10 cm above the floor 2 3 Installation of r
41. e 1 Excess noise while running 1 Compressor 1 Replace compressor and 2 High ampere consumption defective recharge the gas Max 20 amps 2 C 1 contactor 2 Replace contactor 3 Compressor too hot defective 3 Replace relay capacitor 3 Starting relay capacitor defective 4 Compressor not running trips 1 Unit trips off often on HP Condenser fan motor Repair the shaft and bush burnt jammed lubricate the condenser motor fan or replace it 2 Running slow and some time stops 1 Evaporator hot Evaporator fan motor Repair replace fan motor 2 Morefrostonevaporator J med burnt 1 WIC temperature falling 1 faulty thermostat Reset Replace thermostat down settings or Thermostat defected Did not trip on low pressure HP LP Pressostat Check the setting At 25 psi it 7psi defect should be cut off at just above 0 psi Replace if required Technical Handbook for Cold Rooms Drier cold Drier chocked Suction line warm Current less about 4 amps Heavy Ice formation on No auto defrosting evaporator Alarm on when WIC Alarm circuit temperature OK no effect of defective pressing reset button Replace drier Check the heat limit and change the setting if required Defrost manually or by shorting the heat limit terminals in case of foster WIF Set or replace master log in case of Huurre WIF 1 Check T1 amp its circuit and wiring F 1 MCB trips when unit Varistor R 7 Repl
42. e door way Door s to WIC are lockable with 100 fail safe provision for opening from inside Each entrance door has an incandescent vapor proof light mounted on the interior of the door section The door dimensions are 3 W x 6 H Dual Refrigeration system 10096 standby air cooled refrigeration units plug in type automating defrosting electric or hot gas CFC Technical Handbook for Cold Rooms free refrigerant are provided Tropicalized units are suitable for ambient temperature up to 45 C Generator should be complete with automatic control and battery Wall mounted seven days digital thermometer of 4 digits LCD LED Display with data logging capability of 7 days with suitable printer for report generation with remote sensor is normally available High and Low temperature alarm unit are provided Condensing unit s usually comprise of compressor forced air condenser oil separator liquid receiver to carry full charge filter dryer with flare connections service and isolating stop valves high and low pressure dial gauges and oil level sight glass If the gross volume of WIC is 16 cubic meters approx then the internal volume is approximately 14 cubic meters Storage conditions could be maintained at 29 C 8 C continuously by controlling the thermostat on WIC The condensing unit s fitted with high and low pressure cutouts time operated electric defrost control and compressor motor overloads work together to
43. e maintenance support as manufacturer documentation in service technical manual e List of important spare parts and accessories with their part number and costing e User Technical Maintenance manuals in English e Log book with instructions for daily weekly monthly and quarterly maintenance checklist e The job description of the hospital technician and company service engineer Technical Handbook for Cold Rooms Chapter 2 Cold Rooms 2 Procedure for Installation of cold room ERECTION PLAN FOR INSULATED ROOM Install floor panels first For erection of the wall and roof panels follow the order as below 4 8 3 j plank to hold door in Screw to roof panel H postion roof panel 10 screw to door i frame 12 root panel LEM GP 14 15 16 AS i8 19 Figure 5 Erection plan for cold room Technical Handbook for Cold Rooms Chapter 2 Cold Rooms GROOVES PROVIDED FOR MOUNTING THE FREEZING UNITS IF REQUIRED THESE TWO SIDES A DOOR Use different mastics to seal the joints of floor panels roof panels wall panels to corners wall panel to floor panels amp on all outside joints Figure 6 Mounting the cooling unit Important Look for the numbers marks on the panels They need to match for joining two panels Identify and arrange the panels accordingly Installation of the room should be done in the following order Tech
44. e outside temperature is below 09 Out side heaters can also be provided to increase the ambient temperature Make a contingency plan Make sure you know what to do if the WIC F room breaks down Every vaccine store must have a contingency plan for keeping vaccine safe if the refrigeration equipment fails It is impossible to give precise directions about how this should be done as circumstances vary Whatever the circumstances however the following three rules apply in an emergency Some of the possible contingency options are indicated below e Move the vaccine to another cold store Government or private e Borrow or hire a refrigerated vehicle e Obtain ice from a commercial ice maker and store it inside the WIC F in plastic or metal containers Closely monitor the room temperature and keep the ice supply replenished until repairs are carried out Warning Never use dry ice Dry ice may lower the temperature of the WIC to below 0 Moreover when it evaporates sublimes it gives off carbon dioxide gas This may build up in the cold room and could suffocate anybody who enters the room Follow the guidance given below for making contingency plan e Prepare at least two alternative plans e Whatever plans you choose make sure they are discussed and agreed beforehand with your staff and with all the other parties involved e Confirm the plan in writing Keep a copy in the vaccine store Make sure all staff knows where it is
45. e service A water hydrant should be provided if this is required by the fire service The building should not contain a kitchen or other significant fire hazard The building should be of non combustible construction or should be lined with non combustible sheet materials Rooms used for storing packing materials and other combustible items should be isolated from the vaccine store by fire resisting construction and by fire resisting self closing doors Flammable rubbish such as cartons and boxes must not be allowed to accumulate in the store Smoking should be forbidden and No Smoking signs should be displayed throughout the store The building should be fitted with fire and smoke detectors connected to an external alarm sounder Technical Handbook for Cold Rooms There should be at least one carbon dioxide or powder fire extinguisher close to the entrance door for extinguishing electrical fires In addition there should be at least two carbon dioxide powder or water extinguishers within 30 metres of any part of the vaccine store for extinguishing other types of fire Fire detection and fire fighting equipment must be inspected regularly and staff must receive adequate training in fire fighting techniques and emergency action There should be regular fire drills Electrical services All power and lighting circuits must be in a safe condition tested and approved to national standards by a qualified engineer or elec
46. ed vehicles Some states have refrigerated vehicles to distribute vaccine from the primary store to intermediate stores A refrigerated vehicle must be fitted with a temperature logger there should be a weatherproof electrical outlet to power the vehicle s refrigeration unit during loading and unloading operations and there should be sufficient space to store delivery crates if these are used in place of cold boxes 2 3 Refrigeration equipment area The refrigeration equipment area should be laid out so that diluents and OPV droppers can be stored nearby on easily accessible shelves close to the cold store Each vaccine manufacturer supplies diluent that is only compatible with its own vaccine It is very important that diluents be systematically stored and subjected to the same rigorous stock control procedures as the vaccines with which they are intended to be used Experience shows that good control of diluent stock is more likely to be achieved when it is stored close to the vaccine with which it is to be used The information in this section assumes that prefabricated cold stores with twin packaged refrigeration units are in use Figure 1 shows typical layouts and clearances for cold stores in a range of Technical Handbook for Cold Rooms Chapter 1 Effective Vaccine Store sizes from 5 m to 40 m Figure 2 shows the layout and clearances required around WIC F 40 cubic metres 30 cubic metres 25 cubic metres 48m 48m 4
47. ell as the electric supply from the transformer The transformer is connected to a supply with 230 V The connection positions are marked on the lid of the alarm unit The temperature sensor is installed with a fastener and plate screws 6 2 Operation The VHA 12 4 1 temperature alarm unit is continuously monitoring all the sensors attached to it Whenever the temperature of any sensor deviates from the preset valid operating range an alarm condition is activated The upper temperature limit can be 30 C maximum and the lower limit 40 C minimum The alarm condition on the lower limit causes an alarm action immediately but on the upper limit the alarm action is delayed by 0 99 minutes depending on the preset value The alarm is indicated by a red LED lamp and also by audible signal if an optional remote alarm unit has been connected That audible alarm acknowledged and silenced by a push button on the alarm unit The alarm unit indicates the channel causing the alarm condition by flashing the display when that channel number is on the display LED lamp Alarm Low bat lights during a power cut unless low battery condition has been detected 6 3 Setup Setup procedures are carried out by three push buttons These buttons are placed under the lid Push and keep down the SET button about 4 second to activate the programming mode Then you can see a text 1 40 or I NN where in the place of the NN
48. enes 74 MEO cure Em 75 2 LESTIE 10160 i d RR 76 3 Computerized temperature recorders essen nennen nnne nenne nannte 76 3 1 Multi channel computerized temperature monitoring system ues 76 2 4 Wireless temperature data 82 t uidet et en ee art 87 1 1 Vaccine Vial Monitor VVM icit 87 2 0 Fridge TOG 88 1 3 89 MEME 010 01 6 p A E E E 90 Chapter 6 Spare parts and 1 01 1 6 2 91 5 92 4 Toolkit for Refrigerator D rH EUH Doa tas 102 Chapter FU OE 106 4 Possible faults observations and repair actions for cold rooms 107 Abbreviation 0C A AC AMC BCG CFC Cm DC DG DPT Mfd Abbreviations Definition Ampere E B10 5 x 9 5 ct S P 2 amp S S my ct 0 et et C D me FA et g D Q O A Y lt 2 Q 3 D
49. ent temperature of 5 to 45 C and relative humidity of 15 90 Complete installation is done by the supplier inclusive of installation of stabilizer drainage system and assembly of the panels and installation of refrigerator units data logger generator and complete earthing and smoke evacuation system but not including all civil electrical and all other related work required for installation Technical Handbook for Cold Rooms Power Supply Power input 220 240V 50 Hz AC Single phase or 380 400V AC 50 Hz three phase fitted with appropriate Indian plugs and sockets Standards Safety and Training Electrical and refrigeration components and the panels have national or international approvals like UL NSF or BIS Comprehensive warranty generally is for 2 years and 5 years AMC after warranty May have local service facility The service provider normally have the necessary equipments recommended by the manufacturer to carry out preventive maintenance test as per guidelines provided in the service maintenance manual All operational and maintenance training to the end users after successful installation and commissioning may be provided Documentation Following document may available for safe keeping Copy of Certificate of inspection from independent laboratory approved recognized by WHO UNICEF National Accreditation Board STQC Labs is essential e List of Equipments available for providing calibration and routin
50. freezer rooms 1 1 Specifications of WIC Walk in Cooler is required to store vaccines at a temperature between 2 to 80 Operational Requirements Constructed of prefabricated modular complete with floor and ceiling panels mounted on a flat solid concrete base WIC provide total 24 hour all season reliable vaccine storage temperature under all conditions All refrigeration machinery must be provided with 100 standby capacity with duplicate independent controls pipe work instrumentation and machinery to provide against failure of the primary system Automatic changeover and starting of the secondary system is to be provided activated by thermostatic or electrical control Technical Specifications Internal Temperature 2 to 8 C adjustable i during 43 continuous ambient ii 32 C continuous ambient iii 45 05 C day night cycling temperatures Construction Outer and internal plastic coated galvanized steel panels or non corrosive metallic panels or fiberglass panels Dimensions Internal height of 8 feet Floor dimensions 18 L x 12 B minimum 3 above the ground level Floor should be cement concrete and properly leveled and the panels should be fitted on this Insulation Urethane foam or extruded polystyrene foam core bonded to non corrosive metal or fiberglass panels Door is with frame heating heavy duty lock with internal safety release shelving system and provision of plastic curtains on th
51. g WIC F at least twice a day It is critical to ensure that the quality potency of vaccine is maintained at national and regional stores by stocking the vaccines at recommended temperatures It is very critical therefore to monitor the temperatures of WIC F round the clock Temperature monitoring is regular and continuous process There are several ways of monitoring the temperature and some methods are more relevant for monitoring temperature of cold rooms at national state regional vaccine stores while others are more relevant at periphery level or for transportation Broadly classifying there are 4 types of temperature monitoring devices namely 1 Thermometers 2 Temperature Plotters 3 Computerized temperature recorders 4 Temperature indicators 1 Thermometers Thermometers are used to monitor the temperature of Ice Lined Refrigerators ILR and Deep Freezers These thermometers should be placed inside the basket next to stored vaccine Care should be taken that the thermometers are not placed next to the cabinet wall If incorrectly placed the readings may not reflect the actual temperature at which the vaccine is stored The staff should be thoroughly trained on how to read the thermometers There are thermometers that can be both used in DF and ILR whereas some can only be used in ILR The thermometer should never be removed from refrigerators The temperature should be recorded twice a day every day once in mor
52. ges functional sensitivity and defrost frequency If C022 Maximum sensibility of detection system This causes increased defrost frequency If C028 Minimum sensitivity of detection system This causes reduced defrost frequency Note To cancel this function on WIF set parameter CO to 0 and set parameter C3 from 4 to 6 hours time between 2 defrosts 4 1 Sensor S1 Instantaneous value of sensor S1 inside temperature of cold room This is read only 2 Sensor 52 Instantaneous value of sensor S2 sensor on evaporator This is read only Table 4 Setting of C4 and C5 according to the type of equipment Position of 52 on evaporator coil L1 WIC L5 WIF L5 WIF 5 2 Modifying the master log settings Program modification Technical Handbook for Cold Rooms Chapter 2 Cold Rooms Cold room program modification selection of cold room mode from L1 to L5 is possible during the 4 seconds when the display flashes and shows the program number when switching on the cooling unit For example for WIF when switched on master log displays 1 5 for 4 seconds Table 5 Program modification The display shows LO Press 3 times and then press once Validate by pressing V The display shows L1 flashing Display will show L1 to L5 on every press Press t or to un through the program list to display the selected program Validate by pressing V The program
53. gh PCI serial port replicator supplied with the Multilog Computer must not be installed on a mobile table Batteries It is most important that replacement batteries are of the correct type and fitted in the correct polarity Please take care when handling the batteries and do not insert remove the batteries by pulling on the connecting wires Please refer to the diagram fitted to the inside of the Multilog lid to identify and locate the batteries Battery Type 1 Part No MLBATT1 Is a re chargeable battery and should be replaced every 4 years with a similar type of battery CAUTION Never fit an ordinary type of PP3 battery This battery has a Velcro patch on its side to hold it in place inside the Multilog case To replace the battery ease off the terminal connector and then gently ease the battery from its Velcro restraint Battery Type 2 Part No MLBATT2 Technical Handbook for Cold Rooms Chapter 5 Temperature Monitoring These are special 3 7V lithium thionyl chloride battery packs It is recommend that they should be replaced annually To replace a battery gently ease the battery connector from the circuit board Auto Dialer Batteries Landline Based Auto dialer is powered by 3 replaceable size AA manganese alkaline batteries These batteries Auto Dialer Batteries SIM based This auto dialer is supplied with Power Adaptor DC12v 1 25A and backup batteries of 3 x AA size 1 2volt 2200mA Ni MH Rechargeab
54. hat is the maximum permissible ampere Call technician when ampere shows more than permissible limit Know your service agency and update the AMC with full clarifications Technical Handbook for Cold Rooms Find out the name telephone number of the service agency and or the telephone number of the maintenance technician Have the numbers ready for use in case of emergency Listen to the cooling equipment Listen to the cooling equipment when it is working correctly This helps you to know what is normal working sound and identify faults before they become too serious Cooling equipment runs more often during the hot season than during cooler periods In cold weather it may run very infrequently The running time of the cooling equipment increases if the door is opened frequently Learn about the working of the automatic changeover system Generally this is set up so that one cooling unit runs for 24 hours and another takes over for the following 24 hours This is known as duty sharing and ensures that both units get the same amount of use 2 Daily Check Up Temperature Auto temperature recording and twice a day Check the temperature of the WIC F twice each day Cold rooms must be kept between 2 C and 8 C Freezer rooms must be kept between 15 C and 25 C Maintain logbook if automatic system does not work Check inside the WIC F s the airflow from the evaporator normal s the evaporator fan running quie
55. he alternator There are two types of rotor a SALIENT POLE Type b Smooth Cylindrical b Stator It is a stationary part and generally armature coil is wound on Stator 1 3 Control Panel In case of Automatic selection the Generator Control panel senses the Mains power failure and sends signal automatically to start the generator If the generator could not start on the first starting signal the control unit sends two more start signals to the generator at intervals Even then if the generator could not start Generator Failure alarm is given This can be put off by bringing selector switch for mode of operation to STOP position once Technical Handbook for Cold Rooms When the generator starts run the power from the generator is connected with a delay to the cooling freezing unit selected When the mains power returns the generator power supply is cut off and the Mains power is reconnected to the unit and also the generator is stopped automatically with a delay by the Generator Control Panel Whenever the generator runs the run hour counter registers the time of running of the generator Note Also in the case of single phase and low high voltage in the Mains supply the same is disconnected and the generator starts and provides generator power to the selected WIC F unit automatically Generator Control panel also monitors the functioning of the Engine In case of Low lube Oil Pressure
56. igeration technician and cold room in charge This section provides the guide on how to plan and schedule the preventive maintenance of cold rooms This section provides a checklist a copy of which should be attached to each cold room as a log sheet of preventive maintenance 1 Routine Maintenance Keep the space outside the room cool Keep the space outside the cold room or freezer room as cool as possible Condenser units give off a considerable amount of hot air If this hot air is not removed from the environment the efficiency of the cooling units is reduced Trees or screens help to shade the building that houses the cold store Good ventilation removes the hot air Alternatively air conditioning may have to be used to keep the Space cool Keep the condenser unit well ventilated Do not allow rubbish and packaging to accumulate in the vaccine storage area It is essential to maintain free air movement around the condensing units Carry out minor maintenance Clean the room Adjust thermostat Check lock and hinges of door Manual defrosting if needed Maintain the standby generator Keep battery charged Keep diesel tank full Run the generator every week Maintain log book Know where switches and fuses are Find out where the main switch and electrical fuses are Make sure that you have spare fuses and know how to fit them Know your change over switch and control panel of generator Find out w
57. ill change to its set value Master log is ready to accept changes for new values of Cl When is pressed value of Cl increases 5 When is pressed value of Cl decreases Figure 16 Pictorial representation of programming sequence 5 3 Interpreting the operating messages At any point of time master log may flash any of these following indicators These indicators indicate as explained in table below HT High temperature alarm Inside temperature is above maximum limit able 9 Interpretation of indicators Low temperature alarm Inside temperature is below minimum limit Probe Failure short circuit circuit open without probe 5 4 Diagnosis of problems Table Problem diagnosis F1 blinks alternatively Difference between the There is a possible Technical Handbook for Cold Rooms with cold room temperature F2 Blinks alternatively with cold room temperature Green light blinks T1 Blinks alternatively with cold room temperature T2 blinks alternatively with cold room temperature Note T1 2 1 are displayed until pressing V on keypad temperature of Sensor 1 Cold room and Sensor 2 evaporator is less then 2 C during alarm delay period S1 S2 lt 20 C i e The evaporator temperature is nearly equal to the cold room temperature Difference between the temperature of Sensor 1 Cold room and Sensor 2 evaporator is more then 209
58. is the currently preset lower limit value The first digit here 1 corresponds to the current channel number Hit the UP button to advance the list of the available setup parameters You can push the DN button to move backward on the same list The text displayed changes according to the parameter The following paragraphs 3 1 to 3 4 will explain these parameters in detail After modifications are done just leave the buttons and wait It takes 10 second to resume the normal display Lower limit displayed 1 40 or IU NN Technical Handbook for Cold Rooms underscore mark reminds you lower limit setup Set the desired lower limit value by pushing and keeping down the SET button while you tap either UP button or DN button to adjust the value up or down When the wished value has been reached release the SET button or 1 NN Upper limit displayed 1 30 or I NN The over score mark reminds you of the upper limit setup Set the desired upper limit value by pushing and keeping down the SET button while you tap either UP button or DN button to adjust the value up or down When the wished value has been reached release the SET button Calibration displayed 0 or Ic N or Ic N The character reminds you of the calibration setup This setup phase is not necessary if the temperature reading for the channel is perfectly accurate In this mode you can now c
59. k Code 0157 Diesel generator set HONDA Diesel generator set Diesel generator set Solenoid valve Code 0178 Diesel generator set Stop solenoid Code 0445 Starter solenoid Code 0447 Diesel generator set Diesel generator set Ampere meter Code 0356 Volt meter Code 0357 Diesel generator set Diesel generator set Technical Handbook for Cold Rooms Chapter 6 Spare Parts and Tool Kit Alarm and temperature recorder Alarm test button Code 0065 HUURRE cold room Alarm Battery Code 0337 HUURRE cold room SK Alarm unit Code 0058 Temperature recorder HUURRE cold room Code 0154 Technical Handbook for Cold Rooms Chapter 6 Spare Parts and Tool Kit Technical Handbook for Cold Rooms lt a 7 Sef gt 2 17 b 5 iA 02 A c 55 lt FGI Table 14 List of other spare pars Name of The Spare parts 7 M C B Legrand 1 pole 6 Amps 0054 Mr 8 NN Intermotor Lombardini Slauzi M NI Code No Solenoid Switch WIC Gen Lombardini 0445 22 Capacitors ma Ramis 2 3 Condencer Evaporator fan 0111 Motor For Foster WIC Diode Red Contactor Strom burg 220 volts 0132 26 Thermostat Dial Type Long Cappily 40 to 40 0492 C RECORDING THERMOMETER Capacitor 3 mfd Facton Technical Handbook for Cold Rooms Name of The Spare parts 2 2 28 Capacitor 10 mfd 25
60. lat file with handle 52 Set of cable lugs 53 Set of spanners 6 22 mm 54 Solder 1 mm 55 Soldering iron 40 w 56 Key set 2 10 mm 57 Stanley saw blades pack of 10 58 Tube cutter 1 8 1 1 8 59 Tube bender BS 8 1 2 Tube bender spring BS 4 4 61 Tube cutter TC 127 Technical Handbook for Cold Rooms Page 104 Chapter 6 Spare Parts and Tool Kit Valve adaptor K1 9 Vernier Caliper 150 mm Vise grip Pinch off Pliers 65 67 Digital multi meter Digital scale Digital Clamp tester AC current AC voltage and resistance Ohm Technical Handbook for Cold Rooms Page 105 Chapter 7 troubleshooting Contents Troubleshooting guide This section provides the guide on troubleshooting the most common problems associated with performance repair and maintenance of WIC F Chapter 7 Trouble Shooting 1 Possible faults observations and repair actions for cold rooms LIOTI Observations Gas leakage Repair all leakage conduct leakage test and recharge gas up to 20 psi suction pressure 1 temperature high mE 2 Low suction pressure good 20 unit 3 Service valve leaks Conduct soap test 4 Evaporator pipe leaking 5 No liquid bubbles in sight glass 6 Compressor stops trips on HP LP 7 Leakage in flare nut connection to HP LP 1 8 Leakage in capillary tube 9 Leakage in from non return valve on charging tub
61. le Battery with stand by time of 20 hours 3 2 Wireless temperature data logger The best way to monitor the cold room temperature is through computerized temperature monitoring system This monitoring will lead to real time temperature monitoring for 24 hrs It gives automatic report generation daily weekly and monthly automatic alert on landline mobile phones Fax emails and alarms hooters Wireless temperature monitoring system has been especially designed to monitor the temperature of cold rooms and freezer rooms The sensors are placed at ideal location inside the WIC WIF which is connected by wire to the radio module installed outside the cold room Each module is capable of accommodating 8 sensors Radio module transmits the real time data through radio frequency to radio receiver Radio receiver is connected to computer where the data is interpreted This system is capable of recording temperature at user defined frequency which can range from every 1 minute to every 1 hour The ideal frequency of recording the temperature is every 1 hour Radio modules and radio receiver works with electrical power supply with a standby battery backup The standby battery should be checked on periodic basis This may need replacement every 6 months The system is capable of generating periodic reports such as daily weekly and monthly temperature line charts B Computer with Receiver Page 82 Chapter 5 Temperature Moni
62. loads as when energizing the new program is displayed and all the equipment s electrical functions are tested CF final inspection displayed The cold room temperature is displayed and regulation cycle starts Note This procedure can change the mode of cold room from WIF to WIC User should be careful in modifying these settings After a change of program the C1 and CH set points are set to the factory default values for the selected program Reading and modifying the cold chamber set point In normal operation the set point of the cold room can be read or modified Parameter C1 The display in master log shows the inside temperature of cold room from sensor S1 Table 6 Reading and modifying the cold chamber set point The display shows C1 and the set point in Press t or for 3 seconds Degree C alternately f the set point is correct desired NO Change in set point value value Validate by pressing V f the set point is incorrect need The new set point will be displayed on LED Technical Handbook for Cold Rooms Chapter 2 Cold Rooms to be changed press as often as necessary to display the value desired 1 press 1 unit Validate by pressing V Set point changed Cold room will now operate on new set point Forced defrosting Table 7 Forced defrosting Display shows dd flashing Press t and at the same time for 3 seconds Validate by pressing
63. m the temperature recorder or from the dials of the thermostats on the cooling units which will be indicated by the black hand on the dial a If the temperature in the cold room has gone below 2 C observe which of the cooling units is running its compressor Note it and put OFF this unit immediately This may be due to defect in the thermostat in this unit which may have to be replaced if required Also open the cold room door till the temperature rises to above 2 C and the alarm condition is over and then close it b If the temperature in the cold room is observed to be higher than 10 C examine the cooling units if they are working Temperature may rise sometimes inspite of both the cooling units working normally This is possible in situation when a fresh lot of vaccine of considerable quantity is put into the cold room while the ambient temperature is considerably high In such cases there is no other alternative but to wait and keep the units running under observation If you feel you can keep the alarm circuit OFF by its switch until required temperature is reached If it is observed that the Alarm is for high temperature but cooling units are not working then there may be some trouble in the Electrical system Technical Handbook for Cold Rooms Chapter 3 Preventive Maintenance Contents Guide on preventive maintenance Preventive maintenance of cold rooms should be scheduled and practiced by refr
64. mplete earthing and smoke evacuation system but not including all civil electrical and all other related work required for installation Power Supply Power input 220 240V 50 Hz AC Single phase or 380 400V AC 50 Hz Three phase fitted with appropriate Indian plugs and sockets Suitable standby generator set diesel operated 220 240V 50 Hz AC Single phase or 380 400V AC 50 Hz Three phase depending upon voltage requirement of the WIC is normally available Output from generator should be suitable to start and run both cooling units of WIC The diesel tank capacity should be minimum 8 hours Technical Handbook for Cold Rooms continuous running Generator should conform to CPC Guidelines on sound proof canopy type Complete installation including earthing and civil works and fitting should be done in such a way that the smoke should be emitted outside the generator room building Standards Safety and Training Electrical and refrigeration components and the panels should have national or international approvals like UL NSF or BIS Comprehensive warranty for 2 years and 5 years AMC after warranty Normally have local service facility The service provider Should have the necessary equipments recommended by the manufacturer to carry out preventive maintenance test as per guidelines provided in the service maintenance manual Provision may be available for all operational and maintenance training to the end users after succe
65. nical Handbook for Cold Rooms Chapter 2 Cold Rooms insulated floor wall and roof panels twin wall hung refrigeration units ecording thermometer 7 With controls Typical wall hung refrigeration unit insulated door with safety lock Installation DANFOSS 4848191411 Assembly A LEITIO LLIN VEE EE EEY X f Figure 7 Overview of installation and assembly 2 1 Installation of panel Install the floor panels first Start installation of the wall panels from one back corner Start one corner panel and fix one wall panel on each side Go on till all the Technical Handbook for Cold Rooms back side panels except the last wall panel one side This space will be necessary to install the cooling unit 2 from this side Install two roof panels from back and don t install the front roof panel now Install One front wall panel 14 for mounting cooling unit from the corner panel 13 on the side where all the wall panels installed At present the space for door panel and another front wall panel one corner panel one sidewall panel and the front roof panel are empty Bring Cooling unit I into the space meant for the door lift it up over the front panel and place the same on the grooves provided on the front wall panel NOTE The two grooves provided for mounting the cooling unit may be little narrow to fit the unit properly The sides may have to be wi
66. ning and once in afternoon Temperature should be recorded on supplied temperature recording log book The log book should be verified and signed by supervisor on routine basis Technical Handbook for Cold Rooms Chapter 5 Temperature Monitoring 2 Temperature plotters Cold room temperature plotter is a component of WIC F which takes and plots the temperature readings every one hour on a circular 7 day temperature chart The sensor of this plotter is installed inside the WIC F The plotter is a mechanical device which has no dependence on electricity The sheet chart should be replaced every week The weekly sheet should be marked clearly with starting and ending date reference of WIC F and name of the store Plotter requires regular maintenance in terms of replacement of plotting pen ink This might need replacement every 6 months 3 Computerized temperature recorders The best way to monitor the WIC F temperature is through computerized temperature monitoring system This kind of monitoring will lead to real time temperature monitoring for 24 hrs It gives automatic report generation daily weekly and monthly automatic alert on landline mobile phones Fax emails and alarms hooters Computerized monitoring system is of two types 1 Wired temperature monitoring system e g Multilog 2 Wireless temperature monitoring system e g Cobalt 3 1 Multi channel computerized temperature monitoring system Technical
67. nterpreting the operating messages statera tanta tant 56 5 4 Diagnosis Of problems uiae mitt e pni en cl t oc inten 56 MEDI IDEM Nen dux n IE 58 6 1 2 1 hm 6 rmt 58 6 2 Bang me 59 6 3 v e 59 6 4 TUNI T 60 Chapter 3 Preventive maintenance 62 Ll QUIC B esa ene BEI 63 2 Dally Check Up 64 3 MC 4 65 4 TERM 66 5 Monitor routine and emergency maintenance eese nennen tnter tenente innate 67 Chapter 4 Power supply and generators 68 1 Control pane 69 1 1 ji m 69 1 2 69 1 3 69 1 4 TSE GOTH 70 1 5 Sequence of operation of relays in 71 1 6 Maintenance schedule 0 QeDeratOF canine a titio d b tein 73 Chapter 5 Temperature monitoring eee eene eee eee enne enhn reh
68. ok for Cold Rooms Chapter 5 Temperature Monitoring sepe Position Remarks number Installed behind the left evaporator from the This sensor should indicate the door operating behavior of left compressor This sensor should indicate the operating behavior of the right compressor Installed behind the right evaporator from the door This sensor should indicate the temperature at the shelf where vaccine is stored Installed in the shelf at a suitable location opposite to the left evaporator This sensor should indicate the temperature at the shelf where vaccine is stored Installed in the shelf at a suitable location opposite to the right evaporator To be used exclusively only for WIF left or In case there is no WIF proceed to first compressor from door sensor 9 12 for next cold room To be used exclusively only for WIF Rightor In case there is no WIF proceed to second compressor from door sensor 9 12 for next cold room 9 12 Repeat the sensor location from 3 to 6 in second cold room 13 16 Repeat the sensor location from 3 to 6 in third cold room Table 13 Temperature alarm specifications High temperature Low temperature alarm alarm Type of cold room Degree C Technical Handbook for Cold Rooms Chapter 5 Temperature Monitoring Diagram of sensor layout Vaccine storage Shelves Thermastat sensor of cold room Figure 18 Layout of a typical cold room Technical Handbook for Cold Rooms
69. omputer The hardware card installation should follow software installation using the CD ROM provided This CD includes the driver files of the PCI card The computers running on Windows XP can install the software from folder cd drive pci winxp2000 driver CD ROM PCI card driver files In case the sensor cable need extension Sensor cable extension wire 2 E The sensor cable can be extended upto 200 meters This joint box should be used to protect the sensor cable joint with extension cable Sensor cable extension joint box Specifications dedicated computer is required to be connected to Multilog This computer should be connected to UPS for uninterrupted power Technical Handbook for Cold Rooms supply as the computer should be running 24 hours of time The minimum configuration required is as follows 1 A desktop with Pentium IV processor and Intel based motherboard Multilog cannot be operated from a laptop 2 256 MB of RAM 3 40 MB of free space 4 Free PCI slot to insert the serial port card 5 1 KVA UPS with external battery bank to provide power backup of more then 12 hours 6 1 color printer laserjet or deskjet 7 Speakers not mandatory but this helps in raising audible alarm intensity Computer placement Computer should be placed next to a room wall The Multilog should be permanently fixed on the wall and the cables from Multilog should be permanently connected to the computer throu
70. on pliers 2628 G180 12 Diagonal cutting pliers 13 Nose pliers G2430 G160 14 Screwdriver 100 x 5 5 15 Screw driwer no 0 16 Bit set 25 pc 17 BS10 5 8 tube bender spring 5 8 18 BS6 3 8 tube bending tool 19 Capillary tube cutter 14215 20 Charging line CL60B 21 Charging line set of 3 CCL 36 22 Charging lineCL60R 23 Charging unit with Abs vaccum gauge two stage pump solenoid 1 valve and suction and pressure gauge 24 Circular pocket mirror 14225 25 CTVI Valve core tool 26 Cutting wheel 127 27 Drier 20g 4 x2 mm 28 Emery paper 5 m 29 Extra bit holder 30 F8020 Digital clamp tester AC current AC voltage and resistance 1 Ohm 31 Flare nut NS4 10 5 8 32 Flare nut NS4 4 4 33 Flare nut NS4 6 3 8 34 Flare nut NS4 8 1 2 35 Forceps Technical Handbook for Cold Rooms Page 103 Chapter 6 Spare Parts and Tool Kit 36 FT 195 3 16 5 8 flaring tool 37 Gasket for piercing pliers 38 Hammer 300 Gram 39 Reamer 40 Maxi piercing pliers 41 Measuring tape 3 m 42 Needle for piercing pliers 43 NWS Crimping pliers 44 NWS ELECTRICIANS crimping pliers 235 mm 45 process tube w o schraeder 10 pcs 6x400mm 46 Rechargeable Torch 47 Round file with handle 48 RT902 Digital thermometer with minimum maximum data hold and alarm 49 RX1 TIF electronic leak detector 50 Safety goggles 51 F
71. ontactor Telmechanic Lomberdine Gen set Slauzi volmolaite Oil For Compressor opr wr pemr Technical Handbook for Cold Rooms Page 100 2 whe e 5 6 Ww CY zx GILAN 3 Cr 4 2 2 Name of The Spare parts 86 8 Fan Motor Blade Foster 00000 87 Charging Relay T2VDC _ LN 30 8 7 103 Contactormain ABB NK 0156 0497 Contactor Alternator ABB GK 0160 0496 Contactor 220 Volts 0132 Compressor techumseh uropa for cooling unit 0839 108 Condensor fan FMV LAMEL 230 0 85 amp 0841 1500 rpm Connector sprecher schi Contector sprecher schi 25 amp 230 v book for Cold Rooms Technical Hand Page 101 Chapter 6 Spare Parts and Tool Kit 25 S 2 Defrost Sensor 0860 125 135 4 Toolkit for Refrigerator technician Following table lists all the standard tools required for repair and maintenance of WIC WIF Refrigeration technicians should ensure the availability of these tools all the time 1 4 socket set 121 RG4 ball valve blue 121 RG4 ball valve red Adjustable wrench 10 Bahco Adjustable wrench 4 Bahco Adjustable wrench 6 Bahco Adler junior saw 150 mm SB NE Access valve A31004M 1 2 3 4 12V drill screwdriver with 2 batteries 5 7 1 Aluminum tool box Technical Handbook for Cold Rooms Page 102 Chapter 6 Spare Parts and Tool Kit 11 Combinati
72. oom light amp connecting door heater Fit the room light at the centre of the room on the roof panel and take out the cable from top of room if required by drilling a hole in the roof panel Fit the room light switch on the left side of the door panel below the cooling unit Fix the junction on top of the roof preferably near the left side of the door panel Make connection form 7 N PE of Freezer room panel for input power to the junction box Make room light and switch connections from the junction box 2 4 Installation of pressure ventilator Breeder Pressure Ventilator is to be installed on the outside on the wall panels Select a suitable location 25 cm below the roof amp wall panels TL joint such that the joint and also the vertical rail fixed for the shelves inside are avoided Technical Handbook for Cold Rooms Chapter 2 Cold Rooms Drill a hole first and then widen the same with cutter or chisel such that the pipe of the Pressure Ventilator can be inserted smoothly The panels can be cut easily as they are quite soft While inserting the pipe for final fixing apply Mastic on the outside of the pipe Fix the Pressure Ventilator to the outside walls with screws After installation of the Freezer cooling unit a hole is to be drilled on the wall at a suitable location on the wall to bring the defrost water drain pipe from inside of the room to the defrost water tray outside the room on
73. or Generator power 1 10 0 Xp Terminal snip X3 untionbx 005 XA Temmmnalstip KAP3 Terminal strip KAP3 Technical Handbook for Cold Rooms Page 33 0 704 947 AOOH 4702 Fea A MVE OVI OILLVIN3HOS SLINA OOL OYH Ly VO ewy FIOI II HOS JOA JosseJduio7 E e HOLON o 9 S E NOAN H3MOd 1OHINOO 2 e q Z E OL gt S HO S 5 I NH 303 s o3 T Ls L3 6 DEZ T s 5 5 E eo E ete Capacitor Condenser fan motor Ki 0 Technical Handbook for Cold Rooms Chapter 2 Cold Rooms HUURRE WALK IN COLD ROOM ALARM SYSTEM A2 A2 ALARM CENTER 11 ALARMS DEVICE 11 IRANSFORMER BATTERY 8X1 5V INTERNAL SIGNAL LIGHT GREEN FOR NET VOLTAGE SIGNAL LIGHT RED FOR ALARM TIME DELAY FOR ALARM MAIN SWITCH FOR ALARM CENTER TEST BUTTON ALARM THERMOSTAT LOW ALARM THERMOSTAT TEMP TOO HIGH CIRCUIT DIAGRAM 12 V DC FROM CONTROL UNIT 3 4 HUURRE COLD ROOM PAGE NO 10 Figure 12 alarm unit Technical Handbook for Cold Rooms Chapter 2 Cold Rooms 2 Alarmeentre 0 00 0 0 0 000 Battery E V ki Alarm relay 12 V DC too High K2
74. pon the ambient temperature For the selection of the lubricating oil grade anticipated lowest temperature at the time of start should be considered in the winter season and highest temperature of the day during summer season Table 10 Recommended mono grade lubricating oils as per ambient temperature Ambient Viscosity Castrol IOC Caltex Temperature No 15 to 5 C SAE 10W 10 Servo ML B prem Super 10W 10 10 5 C to 10 C SAE 20W 20 ML B 20 20 10 C 45 C SAE 30W HDX CRB 30 ML C 30 30 Above 45 C SAE 40 CRB D ML C 40 40 Consult the service manual of the DG set provided by the manufacturer and follow the recommendations 1 5 Sequence of operation of relays in control Technical Handbook for Cold Rooms Chapter 4 Power Supply and Generators SEQUENCE OF THE OPERATION OF THE RELAYS IN THE CONTROL MAIN SWITCH OF THE NETWORK ON K11 WHEN PHASE SEQUENCE amp THE 3 PHASE OKEY k12 K13 Kit 0 NETWORK SUPPLY EXTENDED TO THE COOLING UNITS ON NETWORK FAILURE WHEN SELECTOR SWITCH IS AUTO DRIVE POSITION tS K11 K127 K13 CONTACTS 5 6 7 START SIGNAL FROM CIRCUIT CARD TO GENERATING SET WHEN GENERATING SET 15 RUNNING K23 H2 DRIVE MEMORY K21 K22 LEGENDS OPERATE RELEASE K2 gt M WITH DELAY INTERLOCKED NOT TO OPERATE POWER SUPPLY FROM GENERATING SET EXTENDED TO PRE SELECTED COOLING U
75. provide the required temperature range WIC are normally fitted with either locally made or manufacturer supplied shelving approximately 600 mm wide x 600 mm pitch fitted on all walls Shelves carry vaccine vials in carton boxes and packages The material of the shelves should be non corrosive medical grade stainless steel to take load of at least 20 kg per square foot Evaporators are forced draught electric defrost ceiling mounted units with fitted condensate drip tray and drain connection The room should be fitted with a pressure release vent which should open and allows enough outside air to enter and rebalance any pressure difference Voltage stabilizer broad specifications KVA Rating As suitable For single phase Input Voltage 160 260 V AC 50 Hz and output 220 240 V AC 50 Hz For three phase Input Voltage 275 440 V 50 Hz Output 400 V 196 50 Hz Three phase four wires Common Specifications 3 4 seconds cut off and 2 minutes restart delay Facilities should be provided for manual control of output Arrangements should allow direct supply bypassing the stabilizer in Technical Handbook for Cold ns case of failures voltmeter and indicators are normally on the front panel with suitable safety and protection devices Quick start arrangement for bypassing restart delay may be available Recommended Spare parts kit for operations Evaporator condenser fan motor Compressor capacitor contactor au
76. r Regional level storage The name Walk in means that one can walk into the storage spaces inside these rooms India is using cold chain infrastructure which was established gradually since 1985 As a result cold chain equipment of various make and mixed technology could be found in the vaccine stores This situation creates special challenges for refrigeration mechanics to service and maintain the equipment of technology ranging from 20 years old to the latest models In the recent years there has been significant change in refrigeration technology and instrumental control design Though the basic functions of the equipment remains the same there is considerable advances in their design like introduction of CFC free refrigerants modern control systems with microprocessors built in electronic switching devices digital display blister type operating switches etc Maintenance work now requires new repair tools instruments and equipment Only the minimum information that is required for day to day repair and maintenance have been provided For more technical detail please refer to equipment manual 2 Space planning 2 1 Planning vaccine store Space is required in a vaccine store for a vehicle loading bay a room to accommodate the refrigeration equipment a room to store dry stores such as diluents droppers packing materials and other consumables such as injection equipment waste management supplies and spare parts a room to p
77. r vaccine cold rooms or freezer rooms Geneva 2002 unpublished document WHO V amp B 02 31 available from Vaccines and Biologicals World Health Organization 1211 Geneva 27 Switzerland and on the Internet at www who int vaccines documents DocsPDF02 www712 pdf How to look after a cold room or freezer room self assessment tool Geneva 2002 unpublished document WHO V amp B 02 30 available from Vaccines and Biologicals World Health Organization 1211 Geneva 27 Switzerland and on the Internet at www who int vaccines documents DocsPDF02 www71 1 pdf WHO UNICEF Effective vaccine Store Management Initiative Module 1 4 WHO IVB 04 16 20 UNICEF Immunization 03 04 Service Manual DANFOSS RI GA B2 02 09 2001 cooling unit Walk in Cooler Walk in Freezer Experience from installation of cold rooms in India 2008 IT Power India Service Manual Walk in Freezer Cooler Hurrey 1999 Service Manual Foster Walk in Cooler 1996 Manual and guidelines for operating Multilog Computerized temperature monitoring device Philippines August 2008 Prepared by UNICEF Presentations of M s Lisa Line Astia Limited on Wire less data loggers Service Manual of Kirloskar Green Gen Set 2006 Diesel Engines Maintenance Manual and Parts book Kirloskar Oil Engines Limited 2004 Technical Handbook for Cold Rooms Page 110
78. rolled by thermostat on each cold room with condensing unit s fitted with high and low pressure cutouts time operated electric defrost control and compressor motor overloads Cold room s are generally fitted with either locally made or manufacturer supplied shelving of approximately 600 mm wide x 600 mm pitch fitted on all walls shelving store vaccine vials in carton boxes packages The material of the shelves should be non corrosive medical grade stainless steel to take load of at least 20 kg per square foot Both evaporators are forced draught electric defrost ceiling wall mounted units with fitted condensate drip tray and drain connection The WIF should be fitted with a pressure release vent which should open and allows enough outside air to enter and rebalance any pressure difference Voltage stabilizer broad specifications KVA Rating As suitable For single phase Input Voltage 160 260 V AC 50 Hz and output 220 240 V AC 50 Hz For three phase Input Voltage 275 440 V 50 Hz Output 400 V 1 50 Hz Three phase four wires Technical Handbook for Cold Roo ns Common Specs Stabilizers should have 3 4 seconds cut off and 2 minutes restart delay along with facility for manual control of output Arrangements for direct supply bypassing the stabilizer in case of failures voltmeter and indicators on front panel suitable safety and protection devices may be available Quick start arrangement for bypassing re
79. rts at 3 45 hrs Defrost stops at 8 50 hrs bs C5 Defrost Time C5 Defrost Time C3 Time Between two defrost C4 End of Defrost temperature mm E Temperature C1 TIME C6 High Temperature default Maximum difference between set point C1 and the maximum temperature inside cold room read by sensor 51 7 Low temperature default Maximum difference between set point C1 and the minimum temperature inside cold room read by sensor 51 C8 Alarm delay time Delay for display and start of alarm after fault detection 9 Fan operation C9 0 fan linked to compressor operation 9 1 fan operates continuously Note this parameter is only used by L1 and L2 CO Energy saving Defrost Intelligent defrosting principle The system continuously monitors the difference between the evaporation temperature and the temperature in the cold room The unit functions optimally by using a microprocessor It checks the increase of this difference after too much frosting in the evaporator The time between two defrosts is thus optimized in relation to the operating conditions If CO 0 Defrosting by clock defrosts are stated in cycles by parameter C3 Technical Handbook for Cold Rooms Chapter 2 Cold Rooms If CO 2 3 4 5 6 7 or 8 Defrosting on request Starts the intelligent defrosting function for programs L2 and L5 The parameter is set to 3 on delivery Modifying this parameter chan
80. ssful installation and commissioning Documentation Followings are generally provided by the manufacturer e Certificate of inspection from an independent laboratory approved recognized by WHO UNICEF National Accreditation Board STQC Labs is essential e List of Equipments available for providing calibration and routine maintenance support as manufacturer documentation in service technical manual e List of important spare parts and accessories with their part number and costing e User Technical Maintenance manuals supplied in English e Log book with instruction for daily weekly monthly and quarterly maintenance checklist The job description of the hospital technician and company service engineer should be clearly spelt out 1 2 Specifications of WIF Walk in Freezer is required for storing vaccines at 20 C Operational Requirements WIF are constructed of prefabricated modular panels complete with floor and ceiling mounted on a flat solid concrete base A WIF must Technical Handbook for Cold Rooms provide total 24 hour all season reliability under all conditions for the stored materials All refrigeration machinery provided with 100 standby capacity with duplicate independent controls pipe work instrumentation and machinery to provide against failure of the primary system Automatic changeover and starting of the secondary system is provided activated by thermostatic or electrical control
81. start delay is helpful System Configuration Accessories spares and consumables Recommended Spare parts kit for operations One kit should include the following components Evaporator condenser fan motor compressor capacitor contactor auxiliary relay defrost timer dual pressure switch thermostat drier control switch fuse automatic transformer high pressure switch and any other recommended item Special service tools for freezer rooms for refrigeration unit with non CFC refrigerant Kit include leak detector serviceman s kit in special case R 134a or R404 or other non CFC refrigerant including valves hoses and manometers refrigerants cylinder R 134a or R404 or other non CFC refrigerant 12 kg and compressor oil to be used with R 134a or R404 or other non CFC refrigerant Recommended spare parts kits for maintenance of the generator The kit should include Spare parts set of fan belts 10 water pump 1 fuel pump with plunger and delivery valve 1 set of front and rear oil seals 10 gasket O H set 1 set of piston rings 1 sets of decarburizing joints 2 set of nozzles 1 set of inlet and exhaust valves with guides 1 set of brushes 1 set of rubber parts 2 set of hose pipes 1 air oil fuel filters 10 Other recommended items set Mains isolator switch fuse protection for all phases for the generator a see through fuel gauge 1 each Environmental factors The WIF is capable of operating continuously in ambi
82. state Freeze tag should be placed along with freeze sensitive vaccines Hep B DPT TT DT etc The vaccines should never been used without shake test when Freeze tag shows the cross mark Technical Handbook for Cold Rooms Chapter 5 Temperature Monitoring 2 Summary Table below summarizes the types of temperature monitoring devices used to monitor the vaccine temperatures in India Technical Handbook for Cold Rooms Chapter 6 Spare parts and Tool kit Contents List of spare parts Ministry of Health and Family Welfare has coded the list of spare parts of WIC F This section provides the extensive list of these spare parts with the code numbers to be used for requesting the parts for replacement Toolkit for refrigeration technicians Technicians require an ideal set of tool kit for repair and maintenance of cold rooms This chapter provides the description of tools required as a part of kit 3 List of spare parts Following list of spare parts provides the code number guide to technicians for requesting these parts from GMSD for replacement of faulty parts GMSD normally stores these spare parts and supplies are based on specific request as the need Relay Time delay relay K12 Code 0096 Relay K13 Code 0097 Thermal relay Code 0344 HUURRE cold room HUURRE cold room HUURRE cold room Relay Code 0116 FOSTER cold room Running capacitor Code 0119 FOSTER cold room 4
83. the Unit The metal L is to be connected to the end of the pipe preferably keeping the open end downwards and touching the tray The plastic tube may melt if it comes to the hot tray surface IMPORTANT Connect the cable for door heater connection along with the cable for light from terminals 7 amp n of the freezer room control panel In the drawing it is shown to be connected from terminals 9 amp 10 i e from the Faulty circuit safety switch 300 mA which is circuit breaker It was observed that if the earthing is not proper this safety switch trips off very often when connected from 9 10 So the supply for the door heating is also taken from 7 N KEEP F40 BREAKER OFF Freezer room control panel main switch must be turned to off position to open the front cover The generator control panel comes along with the generating set in two parts The panel and the electronics unit separately They need to be assembled together This panel can be mounted on the wall using the laminated board Black provided In case the generator is installed in the same room as that of the WIC F this can be fixed on the WIC F outside walls also 3 Engineering diagrams for assembling and installation of WIC WIF Technical Handbook for Cold Rooms Chapter 2 Cold Rooms DRIVE MEMORY RESET RED ENGINE FAILURE RED STOP RED START GREEN HAND AUTODRIVE MAIN SWITCH COOLING UNITS SELECTO
84. those diseases Know correct storage temperature of each vaccine Learn the correct storage temperature for each vaccine Keep a storage temperature checklist in the vaccine store so that you can check if you are in doubt Intermediate Health centre Health post OPV 15 C to 25 C BCG WHO longer recommends that freeze dried vaccines be stored at 20 C Storing them at 20 C is not harmful but is MMR unnecessary Instead these vaccines should be kept in refrigeration and transported at MRO 420 to 8 C 2 C to 8 C Hib freeze dried DTP HepB Hib liquid Diluent vials must NEVER be frozen If the manufacturer supplies a freeze dried vaccine packed with its Diluent ALWAYS store the product at between 29 8 If space permits diluents supplied separately from vaccine may safely be stored in the cold chain between 2 and 8 Figure 4 WHO norms for storing vaccine Temperature sensitivity of vaccines WHO recommends the range of temperatures for storing and transporting vaccine on the basis of data supplied by manufacturers Each vaccine has its own specific storage requirements so it is extremely important to know how long and at what temperature each vaccine can be stored Technical Handbook for Cold Rooms vaccines can be stored at positive temperatures between 2 C and 8 C However only some vaccines can be stored at negative temperatures between 15 C
85. tly s there water on the floor If there is the evaporator drainpipe may be blocked Check outside the WIC F Remove any rubbish Check for signs of vermin such as cockroaches mice rats and bats Clean the floor twice a week At the end of the day make sure that All lights in the WIC F are switched off There is nobody inside the WIC F The door to the WIC F is closed and locked Technical Handbook for Cold Rooms 3 Weekly checks Change the temperature chart If you have a chart recorder with a paper disc change the disc at the end of each week Write the start date on the new chart Write the finish date on the old chart and keep it safely in a file for at least 12 months If the recorder is operated by clockwork wind up the mechanism Refill the ink containers and check the pens 1 Change the refill pen if needed 2 Setthe thermostat if needed Check the liquid sight glasses If the cooling units have accessible sight glasses check that both are filled with liquid and show dry conditions If you see bubbles there may be a leak of refrigerant If the moisture indicator shows wet the filter drier probably needs changing Ask the service agency or maintenance technician to check and replace it if necessary Check ice build up on the evaporator Check the ice formation on the evaporators Look at the pipes and fins Most modern cooling units have an automatic defrosting system If they
86. toring Operating System of Wire Less Data Loggers Abertes natio sspcects EE xc m x E o 0 ee Technical Handbook for Cold Rooms Chapter 5 Temperature Monitoring Daily Temperature Graph New Freezer 2 highest voise 2 6 Average value 16 5 Lowest value 204 i J j 14 00 1600 18 00 20 00 2200 0220 06 00 06 00 06 00 1000 12 00 03 07 2008 0307 2008 0307 2008 0307 2008 9307 2006 04 07 2006 04 07 2006 04 07 2006 04 07 2006 04 07 2006 0407 2006 04 07 2006 User name rao Signature Fri 04 Jof 2008 13 10 Automatic report generation is the same as in the case of wired data loggers Sensor Positioning The sensors should be installed as per the positions mentioned in the table below However exceptions should be noted and duly approved by cold chain specialist or engineer on site The sensor cable should be protected with a plastic casing right through the sensor tip with 20 cm gap between tip and the plastic casing to the data logger connecting point Table 12 Recommended position of sensors inside WIC F Sensor Position Remarks number To be installed in the area used for Room temperature packing the vaccine This sensor should be used to verify the Installed next to cold room thermometer thermostat reading in the cold room thermostat sensor 5 temperature indicator Technical Handbo
87. trician Power circuits serving refrigeration equipment must be rated to suit the required refrigeration starting and running loads Ancillary electrical equipment fans air conditioners light fittings etc should have no significant electrical or mechanical defects Heating and water supply systems All pipe work should be in good condition free of leaks Heating systems should be fully operational and controllable Drainage Drainage systems should be fully operational and free of blockages The surface water drainage system to the building and site must be effective even at the height of the rainy season Pest control The building should be designed and maintained so as to minimize infestation by insects termites rodents bats or other pests Cleaning The building should be cleaned two or three times a week and adequate equipment should be available for this purpose Security The building should be secured against break ins and should be located so that access to it is controlled 4 Vaccine Safety The primary task when looking after a cold room or freezer room is to protect the vaccines from damage All vaccines are virtually Technical Handbook for Cold Rooms damaged if they are exposed to excessively high temperatures On the other hand some vaccines are quickly destroyed if they are frozen Damaged vaccines lose their potency and children who are immunized with such vaccines are not protected against
88. ts and force the panels apart Inspect the area around the evaporator This is usually the coldest part of the room If there is ice or condensation on the panels one or both of the following factors door and strip curtain could be responsible Check the door Go inside the room and ask a colleague to close the door from outside Test the action of the internal safety release handle Does it work properly If not call the maintenance technician A WIF should have an electrically heated door seal If the door seal heater is not working the door may freeze shut If the door is difficult to open and there is ice around the door seal the heater may not be working Call the maintenance technician A WIF should be fitted with a pressure release vent Every time you enter the WIF you let in a certain amount of warm air When this cools it contracts and negative pressure begins to build up inside the room The pressure release vent then opens and allows enough outside air to enter and rebalance the pressure However if the pressure release vent is blocked the negative pressure remains and the door becomes very difficult to open If the door is difficult to Technical Handbook for Cold Rooms open check the release vent to see if it is iced up Remove the ice if you can If you cannot do this call the maintenance technician Check the strip curtain An internal plastic curtain reduces 1 the amount of humid air that
89. ure for 83 3 days without computer intervention When needed data could be downloaded to computer within 83 days and data logger is reset to record fresh readings The data can be downloaded to a computer in one of the two fashions discussed below Technical Handbook for Cold Rooms Monitoring the temperature raising alarms The second function of Multilog is to monitor the WIC F temperature and raise the alarm in case of temperature violation The safe temperature range can be customized for every sensor User can also define which sensors are critical to raise alarm For the alarms to function the instant monitor feature of the software should be turned on and the computer should be ON and running all the time Alarms do not function when the computer has been switched off When the instant monitor is ON the temperature of all the installed and connected sensors is shown on the computer The temperature of all the sensors is refreshed on the computer monitor every 1 hour or as frequent as 30 seconds as specified by the user Apart from raising the audible alarm through the internal speaker of the Multilog and through the connected speakers of the computer the Multilog also raise the dial out alarm through the device called auto dialer The auto dialer should however be connected to an active phone line or a SIM card and should be in ARMED or Activated state The auto dialer alarms users in form of a phone c
90. utting a panel to suit the unit cooler dimensions This panel is then fastened to the rear support of the monoblock unit see fig B In both cases the final sealing is achieved with a mastic seam Technical Handbook for Cold Rooms Chapter 2 Cold Rooms Model G mm EURO P3A EURO PSA 400 mm EURO P7A EURO N8A EURO P10A EURO P13A 690 mm EURO N14A EURO N20A Technical Handbook for Cold Rooms Chapter 2 Cold Rooms Model G mm H MM EURO P3A EURO P5A 400mm 318mm EURO P7A EURO N8A EURO P10A EUROP13A 690mm 608mm EURO N14A EURO N20A Before installing the ceiling panel on the cold storage room two notches and a 025 hole must be made After having removed the foam and folded back the metal tabs insert the arms of the monoblock unit in the grooves Fit the cold storage room ceiling panel Technical Handbook for Cold Rooms Chapter 2 Cold Rooms Model mm EURO P7A EURO NEA EURO 10 EURO P134 690mm 340mm EURO N14A EURO N20A Technical Handbook for Cold Rooms Chapter 2 Cold Rooms Model G mm MM EURO EURO PSA 400mm 318mm EURO P7A EURO N8A 4 EURO P10A EURO P13A 7 T EURO N14A EURO N20A crm auem 4 HOLES FOR FASTENING i THE UNIT TO THE PANEL 25 Ha After installation of the ceiling panel cut the panel to suit the unit cooler dimensions Allow for passage of the arms F
91. volt 0338 32 Contactor K1 K2 Telmechanic 32 Aux Contactor K4 Telmechanic 33 Mains Voltage Watching Unit 0351 Electromatic Time Lag Relay Pirkan Elektron 0353 Control Relay For Auto Start K33 Electromatic 0354 36 Aux Relay KM 1 2 Schier 12V DC 40 0355 07 1200 20 42 Condencer Evaporator Fan Motor HUURRE 0047 WIC EDN Compressor Aspera J6226M 3ph 0046 Voltmeter 0 to 500 V RQ72 E 0357 Ameter 0 to 50A RQ 72 E 50A RF 0356 46 Lomberdeno Generator Solenoid Switch 5600 6 0407 amp 276 A Contactor Timer LR3D1316 Thermo Over Load 0344 Contactor 16A 230V Stromberg K2 0132 Relay 11Pin 250v 10A 24V 10A 0097 9 Auxlary Contactor Block 0157 Contactor LAZEN 140M 0349 K4 0349 Indicator Base 9519 9520 9521 Pencial Cell Battery for Alarm Unit 0336 Technical Handbook for Cold Rooms Name of The Spare parts OT 56 Indicating tamp CoverYelow fose _ 60 Toggle Switch 0000020525 25 Switch S Motor Connecting Wire male Female ILR mI DF Terminal Clips 62 MCB 1Pole 16 Amps AEG ELFA 0340 Contactor Telmechanic LC1 D2510P7 Line Controler 34 155380 Timer Electronic Model TG45 SC 833 67 Stop Solenoid Honda Solenoid Honda 0445000 dr Type HUURRE RECORDING THERMOMETER 70 Rely AVDCS2AIORDINT o Carbon Brush For Honda Genset 0234 Indicator Lamp WIC 0066 Auxilary C
92. within the distance of 1 6 meters 16 sensor cables of 20 Typically 6 sensors are required for a meter length each vaccine store with 1 cold room This battery is fitted inside the Multilog 1 3 7V lithium thionyl and is used for powering Multilog for TT logging temperature This battery is NOT chloride battery 1 iE RECHARGEABLE It should be replaced ELE after 1 year This Battery is fitted inside the Multilog and is used for raising audible alarm This batter is rechargeable and should be charged on regular basis The life of the battery is 4 years 1 rechargeable alarm battery This charger is supplied with the Alarm battery charging VEN Multilog box The charger connects to power adaptor Multilog box and charges alarm battery This CD contains the software of Multilog The software can also be CD ROM of Multilog downloaded from website software J http www remonsys com Check for updated version of software on the website Technical Handbook for Cold Rooms Chapter 5 Temperature Monitoring Item name Image Remarks Auto dialer should be fixed to a wall next to Multilog It should be connected to a telephone line Auto dialer Landline based This is an optional GSM based auto dialer that uses SIM card to send the alert SMS messages and call phones in case of emergency Auto dialer GSM based This card should be inserted in PCI slot PCI serial port multiplier of desktop c
93. xiliary relay defrost timer dual pressure switch thermostat drier control switch fuse automatic transformer high pressure switch and any other recommended item Recommended spare parts kit for maintenance of the generator includes Spare parts in one kit set of fan belts 10 water pump 1 fuel pump with plunger and delivery valve 1 set of front and rear oil seals 10 gasket O H set 1 set of piston rings 1sets of decarburizing joints 2 set of nozzles 1 set of inlet and exhaust valves with guides 1 set of brushes 1 set of rubber parts 10 set of hose pipes 10 air oil fuel filters 10 Other recommended items set Mains isolator switch fuse protection for all phases for the generator a see through fuel gauge 1 each Special service tools for WIC F for refrigeration unit using non CFC refrigerant leak detector serviceman s kit in special case R 134a or R404 or other non CFC refrigerant including valves hoses and manometers refrigerants cylinder R 134a or R404 or other non CFC refrigerant 12 kg compressor oil to be used with R 134a or R404 or other non CFC refrigerant Environmental factors The WICs are capable of operating continuously in ambient temperature of 5 to 45 C and relative humidity of 15 90 Complete installation is normally done by the supplier inclusive of installation of stabilizer drainage system and assembly of the panels and installation of refrigerator units data logger generator and co

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