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True Food Service Equipment, Inc.
6 6
INSTALLATION / OPERATION INSTRUCTIONS
DEFROST TIME CLOCK OPERATION
(GRASSLIN TIMER)
RECOMMENDED DEFROST SETTINGS:
True Manufacturing has factory set your
defrost time clock to a recommended
time and duration defrost scenario. All
units will require routine defrosts. 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.
REQUIRED TOOLS:
• Phillips Screwdriver
• 1/4" Nut Driver or Socket
Locating The Defrost Timer:
Defrost timer is located in the lower
right corner behind the louvered grill
(inside galvanized electrical box).
Take off louvered grill assembly by
removing four (4) corner screws.
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 or temperature
terminated)
Your True equipment contains a defrost
system that is temperature terminated,
however the time clock has been
designed with a time termination
back-up so that the defrost period will
not exceed thirty minutes. While True
requires a minimum 3 defrost periods
not to exceed 60 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 60 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.
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 four white tabs are set
for 15 minutes each for a total of 60
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 60 minute defrost
cycle three times per day.
Outer most dial. White tabs
represent 15 minutes of defrost
time.
Time of day.
Inner most dial.
Defrost Timer Image 2
Defrost Timer Box Image 1