True Manufacturing Company TCGDZ-50 User manual

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INSTALLATION MANUAL FOR
TCGDZ DISPLAY CASES (DUAL ZONE) MODELS
CURVED GLASS DISPLAY CASES
- DUAL ZONE MODELS -
CONGRATULATIONS!
You have just purchased the finest commercial
refrigeration available. You can expect many years
of trouble-free operation.
TRUE FOOD SERVICE EQUIPMENT, INC.
2001 East Terra Lane • O’Fallon, Missouri 63366-4434
(636)-240-2400 • FAX [phone] • INT’L FAX [phone] • [phone]
Parts Department (800)424-TRUE • Parts Department FAX# [phone]
TABLE OF CONTENTS
Safety Information
Safety Precautions ––––––––––––––––––––––––– 1
Proper Disposal –––––––––––––––––––––––––––– 2
Connecting Electricity ––––––––––––––––––––––– 3
Adapter Plugs ––––––––––––––––––––––––––––– 3
Installation / Operation Instructions
Ownership ––––––––––––––––––––––––––––––– 4
Required Tools –––––––––––––––––––––––––––– 4
Uncrating –––––––––––––––––––––––––––––––– 4
Locating ––––––––––––––––––––––––––––––––– 5
Leveling Cabinet ––––––––––––––––––––––––––– 5
Electrical Instructions ––––––––––––––––––––––– 6
Wire Gauge Chart –––––––––––––––––––––––––– 7
Start-up ––––––––––––––––––––––––––––––––– 8
Shelving Installation –––––––––––––––––––––––– 9
Installing Optional Castors ––––––––––––––––––– 10
Installing Optional Formica Kit –––––––––––––––– 11
Maintenance, Care & Cleaning
Optional Sealing Cabinet To Floor –––––––––––––– 12
Cabinet Cleaning ––––––––––––––––––––––––– 12
Light Bulb Replacement –––––––––––––––––––– 13
Temperature Control Adjustment –––––––––––––– 14
Cleaning The Condenser –––––––––––––––––––– 15
Important Warranty Information ––––––––––––––– 16
Stainless Steel Equipment Care ––––––––––––– 17-18
Warranty (U.S.A. and Canada ONLY!) ––––––––––– 19
5/3/10 -300 SB #912626
*Spanish and Dutch version included.
TCGDZ-50

NOTICE TO
CUSTOMER:
Loss Or Spoilage Of Products In Your
Refrigerator/Freezer Is NOT Covered
By Warranty. In Addition To Following
Recommended Installation Procedures
You Must Run The Refrigerator/Freezer
24 Hours Prior To Usage.
True Manufacturing Company, Inc.

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SAFETY INFORMATION
• Thisdisplaycasemustbeproperlyinstalled
and located in accordance with the Installation
Instructionsbeforeitisused.
• Donotallowchildrentoclimb,standorhangonthe
shelvesinthedisplaycase.Theycoulddamagethe
refrigeratorandseriouslyinjurethemselves.
• Donottouchthecoldsurfacesintherefrigerated
compartmentwhenhandsaredamporwet.Skin
maysticktotheseextremelycoldsurfaces.
• Donotstoreorusegasolineorotherflammable
vaporsandliquidsinthevicinityofthisoranyother
appliance.
• Keepfingersoutofthe“pinchpoint”areas;clear-
ancesbetweenthedoorsandbetweenthedoorsand
cabinetarenecessarilysmall;becarefulclosingdoors
when children are in the area.
NOTE
We strongly recommend that any servicing be preformed by
a qualified individual.
• Unplugtherefrigeratorbeforecleaningand
makingrepairs(switchpoweroffatbreakerforhard
wiredmodels).
• Settingtemperaturecontrolstothe0positiondoes
notremovepowertothelightcircuit,perimeterheat-
ers,orevaporatorfans.
WARNING!
Use this appliance for its intended purpose as described in this Owner Manual.
This cabinet contains fluorinated greenhouse gas covered by the Kyoto Protocol
(please refer to cabinet’s inner label for type and volume,
GWP of 134a= 1,300. R404a= 3,800).
SAFETY PRECAUTIONS
When using electrical appliances, basic safety precautions should be followed, including the following:
How to Maintain Your Unit
to Receive the Most Efficient and
Successful Operation
You have selected one of the finest display cases made. It is manufactured under strict qual-
ity controls with only the best quality materials available. Your TRUE cooler, when properly
maintained, will give you many years of trouble-free service.

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SAFETY INFORMATION
PROPER DISPOSAL OF THE DISPLAY CASE
DANGER!
RISK OF CHILD ENTRAPMENT
USE OF EXTENSION CORDS
TRUE will not warranty any display case that has been connected to an extension cord.
Childentrapmentandsuffocationarenotproblemsof
thepast.Junkedorabandoneddisplaycasesarestilldan-
gerous…eveniftheywillsitfor“justafewdays.”Ifyou
aregettingridofyourolddisplaycase,pleasefollowthe
instructionsbelowtohelppreventaccidents.
Before You Throw Away Your Old Display Case:
• Takeoffthedoors.
• Leavetheshelvesinplacesothatchildrenmaynot
easilyclimbinside.
CFC Disposal
Youroldrefrigeratormayhaveacoolingsystem
thatuses“OzoneDepleting”chemicals.Ifyouare
throwingawayyouroldrefrigerator,makesurethe
refrigerantisremovedforproperdisposalbya
qualifiedservicetechnician.Ifyouintentionally
releaseanyrefrigerantsyoucanbesubjectto
finesandimprisonmentunderprovisionsofthe
environmentalregulations.

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Beforeyournewdisplaycaseisconnectedtoapower
supply,checktheincomingvoltagewithavoltmeter.If
anythinglessthan100%oftheratedvoltageforopera-
tionisnoted,correctimmediately.
Havethecircuitcheckedbyaqualifiedelectricianto
makesureitisproperlygrounded.
Thedisplaycaseshouldalwaysbeuseit’sownindividual
electricalcircuit,whichhasavoltageratingthatmatches
theratingplate.
Thisprovidesthebestperformanceandalsoprevents
overloadingbuildingwiringcircuitswhichcouldcausea
firehazardfromoverheatedwires.
For models with standard power cord.
Thepowercordofthisapplianceisequippedwitha
groundingplugwhichmateswithastandardgrounding
walloutlettominimizethepossibilityofelectricshock
hazardfromthisappliance.
Havethecircuitcheckedbyaqualifiedelectricianto
makesureitisproperlygrounded.
Iftheoutletisastandard2-prongoutlet,itisyourper-
sonalresponsibilityandobligationtohaveitreplaced
withtheproperlygroundedwalloutlet.
Thedisplaycaseshouldalwaysbepluggedintoit’sown
individualelectricalcircuit,whichhasavoltagerating
thatmatchestheratingplate.
Thisprovidesthebestperformanceandalsoprevents
overloadingbuildingwiringcircuitswhichcouldcausea
firehazardfromoverheatedwires.
Neverunplugyourdisplaycasebypullingonthepower
cord.Alwaysgripplugfirmlyandpullstraightoutfrom
the outlet.
Repairorreplaceimmediatelyallpowercordsthathave
becomefrayedorotherwisedamaged.Donotuseacord
thatshowscracksorabrasiondamagealongitslengthor
at either end.
Whenremovingthedisplaycaseawayfromthewall,be
carefulnottorolloverordamagethepowercord.
HOW TO CONNECT ELECTRICITY
Hard wiring is required on specific Display Cases.
Models standard with power cords: Do not, under any circumstances, cut or remove the ground prong from the
power cord.
For personal safety, this appliance must be properly grounded.
WARNING!
USE OF ADAPTER PLUGS
NEVER USE AN ADAPTER PLUG!
SAFETY INFORMATION
NEMAplugs
TRUEusesthesetypesofplugs.If
youdonothavetherightoutlethave
acertifiedelectricianinstallthecorrect
power source.
115/60/1
NEMA-5-20R

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INSTALLATION / OPERATION INSTRUCTIONS
Toensurethatyourunitworksproperlyfromthefirst
day,itmustbeinstalledproperly.Wehighlyrecommend
atrainedmechanicandelectricianinstallyourTRUE
equipment.Thecostofaprofessionalinstallationis
moneywellspent.
BeforeyoustarttoinstallyourTRUEunit,carefully
inspectitforfreightdamage.Ifdamageisdiscovered,
immediatelyfileaclaimwiththedeliveryfreightcarrier.
TRUE is not responsible for damage incurred during
shipment.
OWNERSHIP
• TinSnips/BandCutters
• ClawHammer
• HexHeadDriver
• AdjustableWrench
• 3/4"(19mm)Open-EndWrench
• PhillipsHeadScrewdriver
• Level
REQUIRED TOOLS
Thefollowingprocedureisrecommendedforuncrating
the unit:
A. Cutmetalretainingstrapssecuringprotectivetop
skid.Removetheouterpackagingbypullingtri-wall
nailsfromskid.Remove(4)cardboardcornerpads
and dust cover.
B. Inspectforconcealeddamage.Again,immediately
fileaclaimwiththefreightcarrierifthereisdamage.
C. Moveyourdisplaycaseasclosetothefinallocation
aspossiblebeforeremovingthewoodenskid.
UNCRATING
INSTALLATION / OPERATION INSTRUCTIONS
•  Remotecabinetsmustbeorderedasremote.Wedo
notrecommendconvertingastandardselfcontained
toremotesystem.
•  Allremotecabinetsmustbehardwired.
•  Remotecabinetsarenotavailablewithcastors.
•  Allremotecabinetscomestandardusing404A
refrigerant.
•  Allremoteunitscomestandardwithexpansionvalve,
liquidlinesolenoid,heatedcondensatepan,and
defrosttimerwhenapplicable.
•  ContactTRUETechnicalServiceforBTU
requirements.
•  Nowiringnecessarybetweencabinetandcondensing
unit.
•  AllremotecondensingunitspurchasedfromTRUE
are208/230voltssinglephase.
Ifyouhaveanyquestionsregardingthissection,pleasecall
TRUEat1(800)325-6152.
REMOTE UNITS (This section applies to remotes only!)

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INSTALLATION / OPERATION INSTRUCTIONS
TOOLS REQUIRED:
•Phillipsscrewdriver
•3/8”(9.5mm)socketor3/8”(9.5mm)wrench
A. UseaPhillipsscrewdiverandremovefourscrews
fromtheL-bracketconnectedtheunittothewood
skid(image1).Thenusea3/8”(9.5mm)socket
orwrenchandremovetheL-bracketfromtheunit
(image2).
To avoid damage to glass DO NOT lay cabinet
on its side or back when removing skid,
installing leg levelers, cleaning, etc.
B. Liftupfromthebaseandwalkunitofftheskidand
setinfinallocation.
C. Unblockdoors,freeplasticwedges,bluefoamand
tape.Removefiberglasstapesecuringglass.
 Removecomponents:(shelves,brackets,etc.)from
insidecabinet.
WARNING
For proper performance of refrigerated cabinet an ambient
temperature no greater than 75°F (24°C) with a relative
humidity of 55% is required.
LOCATING
A. Setunitinitsfinallocation.Besurethereisadequate
ventilationinyourroom.Underextremeheat
conditions,(100°F+,38°C+),youmaywanttoinstall
anexhaustfan.
WARNING
Warranty is void if ventilation is insufficient.
B. ProperlevelingofyourTRUEunitiscriticalto
operatingsuccess(fornon-mobilemodels).Effective
condensateremovalanddooroperationwillbe
effectedbyleveling.
WARNING
Display case must be leveled accurately to ensure front
glass door seals properly.
C. Theunitshouldbeleveledfronttobackandsideto
sidewithalevel.Placethelevelintheinteriorfloor
oftheunitandcheckallfoursides.
D. Ifthecabinetisnotleveladjustleglevelersbyfirst
relievingweighttolevelerandadjustingbyeither
handorwrench.Repeatwithallleglevelersuntil
cabinetislevelinalldirections.
E. Ensure that the drain hose or hoses are positioned in
the pan.
F.Models with power cord: Freeplugandcordfrom
insidethelowerrearofthecooler(donotplugin).
G. Models with power cord: Theunitshouldbeplaced
closeenoughtotheelectricalsupplysothatextension
cords are never used.
WARNING
Cabinet warranties are void if OEM power cord is tampered
with. TRUE will not warranty any units that are connected to
an extension cord.
LEVELING
Removingbracket
fromskid.
Removingbracketfromcabinet.
1
2

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INSTALLATION / OPERATION INSTRUCTIONS
NOTE
Hard wiring for a 30 amp circuit is required on specific
Bakery Cases.
A. Beforeyournewunitisconnectedtoapowersupply,
checktheincomingvoltagewithavoltmeter.If
anythinglessthan100%oftheratedvoltagefor
operationisnoted,correctimmediately.
B. Modelsequippedwithapowercordmustbe
poweredatproperoperatingvoltageatalltimes.
 Refertocabinetdataplateforvoltage.
 TRUErequiresthatasoleusecircuitbededicatedfor
the unit.
WARNING
Compressor warranties are void if compressor burns out
due to low voltage.
WARNING
Power supply cord ground should not be removed!
NOTE
To reference wiring diagram - Remove lower rear grill.
Wiring diagram is positioned on the ballast box inside lower
rear of the cabinet.
ELECTRICAL INSTRUCTIONS

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INSTALLATION / OPERATION INSTRUCTIONS
CONDUCTORS AND CIRCUITS
Wire Gauge for 2% Voltage Drop in Supply Circuits.
115 Volt Distance In Feet To Center of Load
Amps 20 30 40 50 60 70 80 90 100 120 140 160
2 14 14 14 14 14 14 14 14 14 14 14 14
3 14 14 14 14 14 14 14 14 14 14 14 12
4 14 14 14 14 14 14 14 14 14 12 12 12
5 14 14 14 14 14 14 14 12 12 12 10 10
6 14 14 14 14 14 14 12 12 12 10 10 10
7 14 14 14 14 14 12 12 12 10 10 10 8
8 14 14 14 14 12 12 12 10 10 10 8 8
9 14 14 14 12 12 12 10 10 10 8 8 8
10 14 14 14 12 12 10 10 10 10 8 8 8
12 14 14 12 12 10 10 10 8 8 8 8 6
14 14 14 12 10 10 10 8 8 8 6 6 6
16 14 12 12 10 10 8 8 8 8 6 6 6
18 14 12 10 10 8 8 8 8 8 8 8 5
20 14 12 10 10 8 8 8 6 6 6 5 5
25 12 10 10 8 8 6 6 6 6 5 4 4
30 12 10 8 8 6 6 6 6 5 4 4 3
35 10 10 8 6 6 6 5 5 4 4 3 2
40 10 8 8 6 6 5 5 4 4 3 2 2
45 10 8 6 6 6 5 4 4 3 3 2 1
50 10 8 6 6 5 4 4 3 3 2 1 1
Wire Gauge for 2% Voltage Drop in Supply Circuits.
230 Volt Distance In Feet To Center of Load
Amps 20 30 40 50 60 70 80 90 100 120 140 160
5 14 14 14 14 14 14 14 14 14 14 14 14
6 14 14 14 14 14 14 14 14 14 14 14 12
7 14 14 14 14 14 14 14 14 14 14 12 12
8 14 14 14 14 14 14 14 14 14 12 12 12
9 14 14 14 14 14 14 14 14 12 12 12 10
10 14 14 14 14 14 14 14 12 12 12 10 10
12 14 14 14 14 14 14 12 12 12 10 10 10
14 14 14 14 14 14 12 12 12 10 10 10 8
16 14 14 14 14 12 12 12 10 10 10 8 8
18 14 14 14 12 12 12 10 10 10 8 8 8
20 14 14 14 12 10 10 10 10 10 8 8 8
25 14 14 12 12 10 10 10 10 8 8 6 6
30 14 12 12 10 10 10 8 8 8 6 6 6
35 14 12 10 10 10 8 8 8 8 6 6 5
40 14 12 10 10 8 8 8 6 6 6 5 5
50 12 10 10 8 6 6 6 6 6 5 4 4
60 12 10 8 6 6 6 6 6 5 4 4 3
70 10 10 8 6 6 6 5 5 4 4 2 2
80 10 8 8 6 6 5 5 4 4 3 2 2
90 10 8 6 6 5 5 4 4 3 3 1 1
100 10 8 6 6 5 4 4 3 3 2 1 1

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A. Thecompressorisreadytooperate.Pluginthe
displaycase.
B. Checkthetemperaturecontrolsettinginthelower
rightofthecabinetbackside.Thesettingshould
beatNo.3positiontomaintainanapproximate
temperatureof38°F(3.3°C).Setdefrosttimeclock
tothecorrecttimeofday.Allowunittofunction
severalhours,completelycoolingcabinetbefore
changingthecontrolsetting.
C. Excessivetamperingwiththecontrolcouldleadto
servicedifficulties.Shoulditeverbecomenecessary
toreplacetemperaturecontrol,besureitisordered
fromyourTRUEdealerorrecommendedservice
agent.
D. GoodairflowinyourTRUEunitiscritical.Be
carefulnottooverstockproductorblockairvents.
E.Verifythatthecabinetlightsareworking.Bakery
casesareshippedwithlightswitchesinthe"on"
position.Thetoggleswitchislocatedlowerright
corer at the rear.
NOTE
If the unit is disconnected or shut off, wait five minutes
before starting again.
RECOMMENDATION
Before loading product we recommend you run your TRUE
unit empty for two to three days. This allows you to be sure
electrical wiring and installation are correct and no shipping
damage has occurred. Remember, our factory warranty
does not cover product loss!
REPLACEMENT PARTS
TRUE maintains a record of the cabinet serial number for
your unit. If at any time during the life of your display case,
a part is needed, you may obtain this part by furnishing
the model number and serial number to the company from
whom you purchased the cabinet. Call Toll-Free: (800)-424-
TRUE (Direct to Parts Department). (800)-325-6152 (U.S.A.
& Canada only) or call: (636)-240-2400.
STARTUP
INSTALLATION / OPERATION INSTRUCTIONS
REFRIGERATED CURVED GLASS
DISPLAY CASES
WhenapplicableDisplayCasesareequipped
withaservicereceptacle(foundontheupper
rightcabinetbackside).Noelectricalloadgreater
than5.0ampsshouldbeconnectedtoit.