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 refrig- eration 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 the timer box lid by removing four
(4) corner screws.
Single Door Models:
Defrost timer is located in top of the cabinet in the timer box connected to the evaporator housing.
Two Door Models:
Defrost timer is located in top of the cabinet in timer box connected to the evaporator housing.
Three Door Models:
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 fol- lowed to customize your needs.
High usage, high temperature, and high humidity may require 4 defrost settings per day.
WARNING:
Always follow the manufactur- er’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.
Defrost timer is located on top and right- hand side of the cabinet. The timer is in the timer box connected to the side of the condenser housing.
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 termi- nated)
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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