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True Food Service Equipment, Inc.
66
INSTALLATION / OPERATION INSTRUCTIONS
DEFROST TIME CLOCK OPERATION
(GRASSLIN TIMER)
RECOMMENDED DEFROST SETTINGS:
TRUEManufacturinghasfactorysetyour
defrosttimeclocktoarecommendedtime
anddurationdefrostscenario.Allunits
willrequireroutinedefrosts.YourTRUE
equipmenthasbeendesignedforthree
defrostperiods(6:00a.m.,2:00p.m.and
10:00p.m.).Ifyoudecidetodeviatefrom
thesedefrosttimesettingspleasefollowthe
proceduresforadjustmentbelow.
NOTE
Defrost timer will need to be set at current
time of day before plugging unit into power
supply.
REQUIRED TOOLS:
• PhillipsScrewdriver
• 1/4"NutDriverorSocket
Locating The Defrost Timer:
Defrosttimerislocatedinthelowerright
cornerbehindthelouveredgrill(inside
galvanizedelectricalbox).
Takeofflouveredgrillassemblyby
removingfour(4)cornerscrews.
Setting the timer:
(UNPLUG UNIT FROM
POWER SUPPLY!)
DO NOT SET THE TIME BY ROTATING THE
“OUTER” DIAL.
Turntheminutehandclockwiseuntilthe
timeofdayontheouterdialisalignedwith
thetrianglemarkerontheinnerdial(two
o’clockposition).
Adjusting The Defrost Timer:
(timeinitiated,timeortemperature
terminated)
YourTRUEequipmentcontainsadefrost
systemthatistemperatureterminated,
howeverthetimeclockhasbeendesigned
withatimeterminationback-upsothat
thedefrostperiodwillnotexceedthirty
minutes.WhileTRUErequiresaminimum
3defrostperiodsnottoexceed60minutes
theprocedureonthispageshouldbe
followedtocustomizeyourspecificneeds.
NOTICE
Iftimerisnotsetforaminimumof3
defrostperdayfor60minuteseach,thecoil
maydevelopexcessivefrost.Thismaylead
tosystemfailureandproductloss,whichis
notcoveredunderwarranty.
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
Thewhitetabslocatedontheoutmostarea
ofthetimeclockhavebeenfactorysetfor
(6:00a.m.,2:00p.m.,and10:00p.m.).
Eachtabrepresents15minutesofdefrost
time.Noticethatateachdefrosttimefour
whitetabsaresetfor15minuteseachfora
totalof60minutesofdefrost.
STEP 2
Inordertoprogramthetimetobeginthe
defrostcycle,flipthewhitetabsouttoset
thedefrosttime.Toeliminateadefrosttime
flipthewhitetabsbacktowardthecenterof
theDefrostTimer.
STEP 3
TRUErecommendsa60minutedefrost
cyclethreetimesperday.
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