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True Food Service Equipment, Inc.
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INSTALLATION / OPERATION INSTRUCTIONS
DEFROST TIME CLOCK OPERATION
Instructions for TAC-48, TAC-48GS, and TAC-72RC models.
RECOMMENDED DEFROST
SETTINGS:
TRUE Manufacturing has factory
set your defrost time clock to a
recommended time and duration defrost
scenario. Your TRUE equipment has
been designed for three defrost periods
(6:00 a.m., 2:00 p.m. and 10:00 p.m.). If
you decide to deviate from these defrost
time settings please follow the procedures
for adjustment below.
NOTE:
Defrost timer will need to be set at current
time of day before plugging unit into power
supply. The defrost times have been set
from the factory. If you want to change
defrost times please read through the
defrost timer instructions.
REQUIRED TOOLS:
• Phillips Screwdriver
• 1/4” Nut Driver or Socket
TAC Defrost Timer Location:
Defrost timer is located in a ballast box
behind the front louvered grill on the left
side of the unit. Four corner screws on
the front louvered grill will need to be
removed. The ballast box has two 1/4”
hex head screws that need to be removed
to gain access to the defrost control.
Setting the timer:
(UNPLUG UNIT FROM
POWER SUPPLY!)
DO NOT SET THE TIME BY
ROTATING THE “OUTER” DIAL.
Turn the minute hand clockwise until the
time of day on the outer dial is aligned
with the triangle marker on the inner dial
(two o’clock position).
Adjusting The Defrost Timer:
(time initiated, time terminated)
Your TRUE equipment contains a defrost
system that is time initiated and time
terminated. While TRUE requires a
minimum 3 defrost periods not to exceed
30 minutes the procedure on this page
should be followed to customize your
specific needs.
Notice
If timer is not set for a minimum of 3
defrost per day for 30 minutes each, the
coil may develop excessive frost. This may
lead to system failure and product loss,
which is not covered under warranty.
The following procedure may be followed
to customize your needs.
High usage, high temperature, and high
humidity may require 4 defrost settings
per day.
WARNING
Always follow the
manufacturer’s recommended settings
when programming the amount and
duration of the
defrost cycles.
Defrost Timer Image 2
STEP 1
The white tabs located on the outmost
area of the time clock have been factory
set for (6:00 a.m., 2:00 p.m., and 10:00
p.m.). Each tab represents 15 minutes
of defrost time. Notice that at each
defrost time two white tabs are set for 15
minutes each for a total of 30 minutes of
defrost.
STEP 2
In order to program the time to begin the
defrost cycle, flip the white tabs out to set
the defrost time. To eliminate a defrost
time flip the white tabs back toward the
center of the Defrost Timer.
STEP 3
TRUE recommends a 30 minute defrost
cycle three times per day.
Defrost Timer Box Image 1
Outer most dial. White tabs represent 15
minutes of defrost time.
Time of day.
Inner most dial.
