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3.3 Temperature mapping
The following section verifies if the appliance operates within the defined maximum tempera-
ture deviation and performance limits by performing temperature mapping.
Before starting up the appliance, place the test probes inside the appliance like illustrated on
the previous page. Ensure that there is no gap around the cable of the test probes, enabling
hot air to enter the appliance, as this may affect the performance of the appliance. If any gap
is visual, it must be sealed.
We recommend performing the temperature mapping in ambient conditions of +25°C and RH
of 45 – 65 %.
PROCEDURE
RESULT
PASSED (YES/NO)
Ensure that the
calibration certificate
of the measur-
ing device is enclosed to this IQ/OQ
Before starting up the appliance and temperature
mapping, ensure
acclimation
of the appliance by
making sure that the temperature of the appliance
equals the ambient temperature.
Start the
temperature logging
of the test probes.
Turn on the appliance and let it run until
stable
con-
dition is reached.
Note the
start time
and
start temperature
.
Default set point refrigerators: +4°C
Default set point freezers: -20°C
Start time (appliance):
Start temp. (display):
Start temp. (test probes):
Probe 1:
Probe 2:
Probe 3:
Probe 4:
Probe 5:
Probe 6:
Measure and note the
ambient temperature
to veri-
fy that is below the defined maximum.
Max. ambient refrigerators: +43°C
(+/- 2K)
Max. ambient freezers: +25°C
(+/- 2K)
Approval criteria
Ambient temp.
≤
the defined max. limit
Ambient temp.:
Verify the
pull down time
from starting up the appli-
ance until the set point is reached.
Approval criteria
(by ambient temp. of max. +25°C)
-
Refrigerator:
Pull down time of max.
1 hr.
-
Freezer:
Pull down time of max.
1,5 hr.
Time of set point
reach (time when the last
test probe has reached the
set point):
Pull down time:
(start time – time of set
point reach)