9
CASE START-UP, CONTINUED: HONEYCOMB AIR DIFFUSER
4. Honeycomb Air Diffuser
When main power switch is turned on, refrigeration assembly
will energize.
Evaporator coil fans should turn on.
From inside-upper section of case, check for discharge air
from honeycomb air diffuser (shown at right) to confirm that
the fans are functioning properly.
When the case is in a start up mode or has been idle for a
long period of time, the unit will require 75 minutes of run
time to pull-down temperature.
See PREVENTIVE MAINTENANCE (TO BE PERFORMED
BY TRAINED SERVICE PROVIDER) section in this
manual for honeycomb cleaning instructions.
Model B428WN Shown Above
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