True Food Service Equipment, Inc.
INSTALLATION / OPERATION INSTRUCTIONS
FREEZERS 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 refrigeration equipment operating below 30°F will accumulate frost on the evaporator coil and will require routine defrost. 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.
REQUIRED TOOLS:
•Phillips Screwdriver
•1/4” Nut Driver or Socket
Locating The Defrost Timer:
Take off louvered grill assembly by removing four (4) corner screws.
Single Door Models:
Defrost timer is located in the lower right corner behind the louvered grill (inside galvanized electrical box).
Two Door Models:
Defrost timer is located in the middle of the cabinet, behind the louvered grill. Timer is mounted to the left of the centered ballast box (Inside of gray timer box).
Your True freezer contains a defrost system that is temperature terminated, however the time clock has been designed with a time termination
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.
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.
Three Door Models:
Defrost timer is located on the left upright post behind the louvered grill (Inside of gray timer box).
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)
Defrost Timer Box Image 1
Outer most dial. White tabs represent 15 minutes of defrost time.
Time of day.
Inner most dial.
Defrost Timer Image 2
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