Cold Chain EquipmentCold Chain EquipmentD.Dutta
Classification of CCEClassification of CCE
Electrical CCE Electrical CCE Walk-in-Freezers (WIF) : Walk-in-Freezer is a pre-fabricated modular
Polyurethane foam (PUF) insulated panels assembled cold room with two identical Refrigeration units
Standby generator set to provide the uninterrupted power supply
An alarm or hooter system is also provided to alert regarding temp excursion.
WIFWIF
WIF is used for bulk storage of OPV and preparation of frozen ice packs
WIF maintain a temperature between - 15⁰C to -25⁰C.
WIF sizes are 16.5, 20, 32 and 40 Cubic meter.
Walk-in-Freezers are usually installed at National, State & Regional vaccine store.
Electrical CCE – WIC Electrical CCE – WIC
Walk-in-Cooler (WIC) :. WIC is a pre-fabricated modular
Polyurethane (PUF) insulated panel assembled cold room with two identical Refrigeration units.
WIC maintain a temperature of +2⁰C to +8⁰C.
The sizes are 16.5, 32 and 40 Cubic meter.
WICWICWIC used for storage of large quantities of all UIP
vaccines like, BCG, Hepatitis B, DPT, Pentavalent, IPV, Measles, MR and TT, except Polio.
Generator for uninterrupted power supply.
WIC comes with continuous temperature recorder and alarm system.
Walk-in-Coolers are installed at GMSD, State , Regional vaccine store district vaccine store
Electrical CCE - WIC & WIFElectrical CCE - WIC & WIF
WICs/WIFs are equipped with following interfacing equipment:
Temperature recorder: Measures cold / freezer room temperature continuously on
circular chart. Data loggers are installed with and inbuilt mini printer.
The print out from the data logger are being used for remote temperature monitoring of WIC and WIF using internet / GSM services.
Alarm systems: An alarm or hooter system is provided to give alert regarding
temperature excursion / deviation.
Servo Controlled Voltage Stabilizer:Servo Controlled Voltage Stabilizer:
Main power is connected through a Servo Controlled Voltage
Stabilizer to safeguard the WIC/WIF from voltage fluctuations by providing a constant voltage.
Diesel generator (DG) set: DG set is used to provide the standby power supply.
CCE- Deep FreezerCCE- Deep Freezer
Deep Freezer is an equipment, which operates on a vapour compression system similar to any conventional type of refrigerator operating on 220 volts, A.C. mains supply.
DF has top opening lid to prevent loss of cold air during door opening.
Cabinet temperature is maintained between -15 C to -25 C.⁰ ⁰ Used for storing of OPV and preparation of IP at district level
and above only and also for freezing of ice packs at below district level CCP
Different sizes of DF (Large and small) as under:
Make Model Net storage capacity No. of IP Storage capacity Size Haier , HBD-286 , 200 350
Large Haier, HBD- 116 80 140
Small Vestfrost ,MF - 314 264 380
Large
CCE - ILRCCE - ILRTop opening lid to prevent loss of cold air
during door opening. Maintain a cabinet temperature between
+2⁰C to + 8⁰C Used to store vaccines at District and PHC
level. It can keep vaccine safe with minimum 8
hours continuous electricity supply in a 24-hour period.
ILRs are available in different sizes as under. .
Make Model Size Net Storage capacity (L) population
Vestfrost MK-304 Large 108 3,30,000
Vestfrost MK-114 Small 45 2,60,000
Haier HBC-200 Large 100 330000
Haier HBC-70 Small 50 260000
The larger ILR is usually supplied to district headquarters and smaller ILR to PHC headquarters
ECCE - ILRECCE - ILR
How to Keep Vaccine: All the vaccines should be kept in the basket of
the ILR. In case basket is not available, two layers of
empty ice packs can be laid flat on the bottom of the ILR to avoid contact with the inside floor of the cabinet.
Vaccines should never be keep on the floor of the ILR.
Place a thermometer in the basket in between the vaccines.
Freeze sensitive vaccines (DPT,TT,IPV, Penta and HepB) at the top of the basket.
Heat sensitive vaccines (OPV, BCG, Measles & JE) in the bottom of the basket.
The vaccines should be arranged as per their expiry dates. (Early expiry should be above the further expiry ones).
ECCE - ILRECCE - ILR
Installation of ILR & DFInstallation of ILR & DFSpacious room ( minimum size 3.5 m x 3.0
m) with good air ventilation.The electric point should be nearest to the
place where equipment is to be installed.There are should not be direct sun light on
the equipment.Place the equipment in the leveled positionThe equipment should be placed at least 10
cms away from the wall and other equipment
Connect the voltage stabilizer for each equipments
The electric wiring should not be less than three core 7/20 cable of ISI marked
Three pin 15 amps socket should be ISI marked and it should be nearest to the equipment
No extension cord should be usedBefore starting the machine check the line
for earthing and neutral
Installation of ILR & DF ……………Installation of ILR & DF ……………3 pin 15 amps plug with ISI marked should
be connected with stabilizerConnect plug with socketRotate the thermostat up to maximumSwitch “ON” the power supplyAllow to run the machine for 48 hours. See the temperature become stableKeep the thermostat at normal positionLoad the ILR / DF through ice packs/vaccine
of desire quantity.
Hold Over TimeHold Over Time“Hold over time” is defined as the time taken by
the equipment to raise the inside cabinet temperature from its cut off temperature to maximum temperature limit of its recommended range.”
e.g. If in the case of ILR, the cut of temperature is 4⁰C, then the time taken to reach 8⁰C from 4⁰ C will be the “Holdover time “ for that ILR.
Hold over time depends on the Hold over time depends on the following factors:following factors:
Ambient temperature Frequency of opening of lid and use of
basket Quantity of vaccines kept inside with
adequate space between the containers Condition of icepack lining (Frozen/partially
frozen / melted) inside Electrical /Non electrical cold chain equipment
Note: Deep Freezer does not have Hold Over time like ILR
Associated CCEAssociated CCE
Automatic Voltage Stabilizer Icepacks Generator (DG Set) Inverter
