User manual

24
DAILY
1. Take temperature readings from the thermometers
and note down the temperature and the time of
reading.
Keep the temperature records systematically. It is
suggested that minimum 2 readings should be
taken (in the morning and afternoon) preferably at
the same hours of each day.
If the temperature is observed to be below or above
the required range, adjust the thermostat (see
Action 7A & 7B on page 14) by steps, allow the ILR
to run for about one hour under observation. If
required, adjust the thermostat further until the
required temperature range is obtained.
To make the inside colder, the thermostat knob is to
be turned clockwise to a higher setting.
To make the inside warmer, the thermostat knob is
to be turned anti-clockwise to a lower setting.
2. Clean the exterior of the ILR with a clean dry cloth.
WEEKLY
1. Examine the liner tubes, if water have frozen inside,
fully in case of `Freezer' and partially in case of
`Refrigerator' function. If not, increase the
thermostat setting by a step or two. Observe that
the cabinet temperature does not fall or rise outside
the prescribed limits in any case.
2. Examine the liner tube compartment and see if frost
formation is more than 1 /4" (6 mm). If so,
DEFROST the iLR as described earlier (see page
23).
If it is observed that Defrosting is required to be
done each week:
a) Examine the rubber seal on the lid, if it sits
properly. Any gap between the cabinet and seal
can be checked by placing a visiting card
between them. The card should resist being
pulled out freely. If the card can be pulled out
freely, there exists a gap. Such gap will allow
outside air to go in and form frost early. In such
cases the lid should be adjusted or the seal
should be changed.
b) Restrict and reduce frequency of opening the
ILR. Open only when absolutely necessary.
MONTHLY
1. Clean the compressor compartment:
a) Put off the switch, if any, and take out the plug
from the wall socket.
b) Take out the side-cover of the compressor
compartment (see page 5, actions 1 ). Clean the
interior of the compressor compartment with a
soft brush.
c) Check the mounting brackets of compressor and
the bolts of the fan, if they are tight. If not, rectify.
d) Fit back the side cover (see page 8, actions 4)
2. Clean the lid seal (see page 23, action 9b). 3. If
possible, put a standard mercury thermometer
inside the cabinet and compare the readings with
those of the dial thermometers and see if they
are correct.
Dial thermometers with incorrect readings may have
to be re-adjusted or replaced, as incorrect readings
may lead to wrong storage temperature and loss of
the potency of the vaccines preserved.
7. PERIODIC OBSERVATIONS/CHECKS/ACTIONS