True GDM Series User Manual

Technical Service Manual
(All Models)

True GDM Series Specifications

General

Defrost Type	Automatic
Weight	Varies by model
Shelves	Adjustable Wire Shelves
Lighting	LED
Interior Finish	Stainless Steel
Compressor Location	Bottom
Energy Efficiency	Energy Star Certified
Capacity	Varies by model
Dimensions	Varies by model

Summary

Cabinet Installation and Set-Up

Electrical Requirements

Conductors and Circuits

Cabinet Installation and Set-Up Checklist

Cabinet Installation and Set-Up (Swing & Slide Doors)

Swing Doors

Instructions for removing packing materials from swing doors.

Slide Doors

Instructions for removing packing materials from slide doors.

GDM / T-Series Freezers Installation

Installing Castors

Procedure for installing castors on the bottom rail assembly.

Installing Leg Levelers

Procedure for screwing leg levelers into corners of the rail assembly.

Leveling

Instructions for leveling the unit using castors or leg levelers.

Remote Condensing Unit Installation

Receiving

Inspect equipment for damage upon receipt.

Refrigerant Lines

Recommendations for refrigerant piping and joint types.

Leak Check and Evacuation

Procedures for leak checking and evacuating the system.

Evacuation Process

Steps for drawing a vacuum to dehydrate the system.

Charging Process

Steps for charging the system with refrigerant.

Final Check

Final checks on pressure controls, thermostat, and voltage.

Temperature Control Altitude Adjustment

Required Tools

List of tools needed for temperature control adjustment.

Important Note

Note regarding pre-calibrated controls for upright models.

Danfoss Temperature Control Adjustment for High Altitude Applications

Terms

Definitions for cut-out and cut-in temperatures.

Instructions

Steps for adjusting Danfoss temperature controls for high altitude.

Defrost Controls

Recommended Defrost Settings

Factory-set defrost times and recommended settings.

Required Tools

List of tools for defrost timer adjustment.

Locating The Defrost Timer

Instructions for locating the defrost timer in different cabinet models.

Adjusting The Defrost Control

Procedure for adjusting time-initiated, temperature-terminated defrost controls.

Time Initiated, Time Terminated Defrost

2. Time Initiated, Time Terminated

Explanation of time-initiated, time-terminated defrost systems.

Preventative Maintenance

Cabinet Maintenance Schedule

Monthly

Monthly maintenance tasks for the cabinet.

Quarterly

Quarterly maintenance tasks for the cabinet.

Yearly

Yearly maintenance tasks for the cabinet.

Condenser Cleaning

Refrigeration Section

Polyol Ester Lubricant

Polyol Ester Lubricant

Explanation of Polyol Ester lubricant and its properties.

Service Contractors

Service Contractors: Attention Please

Precautions for service contractors using specific compressors.

Basic Refrigeration

The Capillary Tube System

Diagram and explanation of the capillary tube refrigeration system.

The Refrigeration Cycle

True’s Remote System - How It Works

Refrigeration Schematic Diagram

Schematic diagram of the remote refrigeration system.

Control of Liquid Refrigerant Floodback

Control of Liquid Refrigerant Floodback To The Compressor During Operation

Explanation of liquid floodback and prevention methods.

General Cabinet Maintenance and Repairs

Top Removal for TBB & TDD Units

Top Removal for TD & T-GC Units

TPP Countertop Replacement Instructions

Top Removal for Various Coolers

Top Removal for TRCB 50 and 79

End Cap Replacement - T-Series Swing Door

Side Panel Replacement - GDM Series

Side Panel Replacement - GDM-33C-PT

Floral Case Baffle Installation

GDM-23FC Mirror Retrofit Kit

Perimeter Heater Replacement

TWT, TUC, TSSU, and TPP Perimeter Heater Replacement

Instructions for replacing perimeter heaters.

GDM and T-Series Freezer Perimeter Heater Wire Replacement

TD-Series and Glass Chillers

Replacement of Lid Rails, Lid Rail Trunions and Lid Gaskets

Instructions for replacing lid rails, trunions, and gaskets.

Temperature Control Replacement (Larger Than 1/3 H.P. Compressors)

Warning: Qualified Repair Personnel

Warning about electrical hazards for field personnel.

Required Tools

List of tools needed for temperature control replacement.

Contents of Relay Kit

List of components in the relay kit.

Step 1 Removing Power

Procedure for disconnecting power before starting.

Step 2 Remove Louvered Grill

Instructions for removing the louvered grill.

Step 3 Accessing Wire Connections

Steps to access wire connections by removing ballast box cover.

Temperature Control Replacement Continued

Step 4 Relay Connection Mounting

Instructions for mounting the relay to the underside of the unit.

Temperature Control Replacement Continued

Step 5 Relay Temperature Control Wiring

Detailed wiring instructions for the relay and temperature control.

Temperature Control Replacement Continued

Step 6 Replace existing temperature control

Steps for replacing the existing temperature control with a new one.

Step 7 Anchor the Relay Shield

Procedure for securing the relay shield.

Temperature Control Replacement Continued

Step 8 Unplug the cooler

Instruction to unplug the cooler.

Step 9 Checking Relay Operation

Steps to check the relay operation after installation.

Securing Ballast Box

Instructions for reinstalling the ballast box cover.

Step 10 Replacing Louvered Grill

Instructions for reinstalling the louvered grill.

Step 11 Re-connect Power Cord

Instruction to reconnect the power cord.

Step 12 Return Temp Control to normal setting, and check cabinet operation

Final step to check cabinet operation after replacement.

Temperature Control Change-Out - GDM

Required Tools

List of tools needed for temperature control change-out.

Step 1 Unplug the cooler

Instruction to unplug the cooler.

Step 2 Turn the temperature control to the "OFF" position ("0")

Setting the temperature control to the OFF position.

Step 3 Remove the black control knob on the temperature control

Procedure for removing the control knob.

Step 4 Remove the screws that secure the mounting plate to the evaporator top

Removing screws holding the mounting plate.

Step 5 Remove the two screws that hold the control to the mounting plate

Removing screws holding the control.

Step 6 Disconnect the two wires from the temperature control

Disconnecting wires from the temperature control.

Step 7 Reach to the side of the evaporator coil and remove the permagum from around the control bulb

Removing permagum and control bulb.

Temperature Control Change-Out - GDM AND T-SERIES

Required Tools

List of tools for installing the new control.

Step 1 Insert the control bulb into the copper sleeve

Inserting the control bulb into the copper sleeve.

Step 2 Seal the end of the sleeve with permagum to keep moisture out

Sealing the sleeve end with permagum.

Step 3 Connect the two wires to the new temperature control

Connecting wires to the new temperature control.

Step 4 Fasten the control onto the mounting plate with two screws

Fastening the control to the mounting plate.

Step 5 Fasten the mounting plate to the cooler with two screws

Fastening the mounting plate to the cooler.

Step 6 Replace black control knob and turn the control to the #5 setting

Replacing the knob and setting the control.

Step 7 Plug the Cooler in

Plugging in the cooler.

Replacing Temperature Controls in GDM-7, GDM-10, and GDM-12 Models

Surge Protector Installation for GDM-Series

Surge Protector Installation

Recommended procedure for installing surge protection.

Required Tools

List of tools required for surge protector installation.

Louvered Grill Removal

Steps to remove the louvered grill.

Ballast Box Access

Steps to access the ballast box.

Knockout Location and Bushing Installation

Locating knockout and installing a snap bushing.

Creating Wire Connection for Surge Protector

Steps to create wire connections for the surge protector.

Locating Power Cord Wiring for Cutting

Identifying power cord wiring for cutting.

Surge Protector Installation for GDM-Series Continued

Locating Power Cord Wiring for Cutting (cont.)

Continuation of locating power cord wiring for cutting.

Attaching the Surge Protector to the Ballast Box

Attaching the surge protector to the ballast box.

Splicing Interconnecting Wiring to Surge Protector

Splicing interconnecting wires to the surge protector.

Enclosing Wiring and Unit Start-Up

Enclosing wiring and starting up the unit.

Door and Lock Repair

Glass Insert - Slide Door

Required Tools

List of tools for glass insert replacement.

Step 1 Slide left door

Removing the slide door.

Step 2 Remove the nylon cord from the top of the door

Removing the nylon cord.

Step 3 Set the door (handle side down) on a flat surface

Preparing the door for work.

Step 4 Remove the screws that secure the four glass insert holders to the door

Removing glass insert holders.

Step 5 Beginning at the corners carefully pry the broken glass loose from the frame

Carefully prying loose broken glass.

Step 6 Remove any excess tape or glass from the lip on the door frame

Cleaning the door frame lip.

Step 7 Remembering to keep the tempered glass to the handle side of the frame

Positioning the new glass insert.

Step 8 Replace the four Aluminum glass insert holders

Replacing glass insert holders.

Step 9 Reconnect the nylon cord to the top of the door

Reconnecting the nylon cord and replacing the door.

Slide Door Instruction - To Improve Slide Door Closing

Wiper Gasket Installation

Required Tools

List of tools for wiper gasket installation.

Step 1 Before removing the doors from the cabinet, mark each door

Marking doors for wiper gasket placement.

Step 2 Remove the doors by lifting the left door up and swing the bottom out

Removing the doors.

Step 3 Drill out the rivets that secure the wiper Gasket

Drilling out rivets to remove the wiper gasket.

Step 4 Peal off the adhesive tape on the back side of the gasket

Applying the new wiper gasket.

Step 5 Drill one 1/8” hole through the top and Bottom of the wiper gasket holder

Securing the wiper gasket holder.

Step 6 Adjust the blade to the back frame in the center door

Adjusting wiper gasket for 3-door coolers.

Removal and Installation of GDM & Old Style T-Series - Swing Door

Required Tools

List of tools for door removal and installation.

Note: For greater safety and ease of installation

Safety note recommending two people to assist.

Important: Freezer doors have heater wires

Note about unplugging heater wires on freezer doors.

Step 1 Turn the cooler off

Turning off the cooler.

Step 2 Remove the four mounting screws from louvered grill and remove grill

Removing the louvered grill.

Step 3 Unplug light from ballast box

Unplugging door light feature.

Step 4 Locate the top hinge assembly

Locating the top hinge assembly.

Step 5 Remove Door Stop Pin

Removing the door stop pin and relieving spring tension.

Removal and Installation of a GDM-Swing Door

Note: If cabinet is equipped with integrated door light

Note about unplugging door light and heater wires.

Step 6 Rest the bottom of the open door on your left knee

Removing the bottom hinge assembly.

Step 7 Carefully place door on a flat surface

Placing the door on a flat surface.

Required Tools

List of tools for door replacement.

Note: It may be necessary to verify stop pin location

Note about checking stop pin location.

Step 1 Beginning with the top hinge assembly of the replacement door

Assembling the top hinge of the replacement door.

Note: The slot at the base of the hinge shaft must seat over the head of the door hinge spring

Note on seating the hinge shaft.

Step 2 Insert the bottom hinge assembly

Assembling the bottom hinge.

Step 3 While holding bottom hinge in place lift door and slide top door hinge together

Aligning and attaching hinges.

Step 4 Replace the louvered grill on the cooler with the four screws

Replacing the louvered grill.

Step 5 Adjust the spring by rotating the door hinge shaft to the left

Adjusting spring tension and stop pin.

Note: If cabinet is equipped with integrated door light

Note about plugging in door light.

Note: Freezer doors have heater wires

Note about plugging in heater wires.

To adjust door hang

Instructions for adjusting door hang.

Torsion Spring Replacement - New Style T-Series & GDM

Required Tools

List of tools for torsion spring replacement.

Note: If the torsion spring is broken

Note about skipping steps if spring is broken.

Step 1 Turn the cooler off

Turning off the cooler.

Step 2 Locate the top hinge assembly

Locating the top hinge assembly.

Step 3 If spring remains taut, relieve tension by placing a drift punch or 1/8" drill bit into the stop pin hole

Relieving spring tension.

Step 4 Remove the stop pin and rotate the hinge shaft

Removing the stop pin and rotating the hinge shaft.

In some instances it is necessary to relieve spring pressure one hole position at a time

Technique for relieving spring pressure.

Note: Operation is reversed for left side door

Note on reversed operation for left side doors.

Torsion Spring Replacement - Swing Door

Note: If cabinet is equipped with integrated door light

Note about plugging in door light.

Step 5 Remove all 4 anchor screws from louvered grill and remove grill

Removing the louvered grill.

Step 6 Rest the bottom of the open door on your left knee

Removing the bottom hinge assembly.

Step 7 Remove the door and carefully place door on a flat surface

Placing the door on a flat surface.

Step 8 Remove upper and lower brass bushing from from the top and bottom of door

Removing brass bushings.

Note: It may be necessary to verify stop pin location

Note on checking stop pin location.

Step 9 Remove the broken torsion spring from the bottom of the door

Removing the broken torsion spring.

Step 10 Insert the new spring from the top of the door ensuring that the end hooks into the cross in the bottom door block

Inserting the new torsion spring.

Step 11 Assemble top hinge

Assembling the top hinge.

Note: The slot at the base of the hinge shaft must seat over the head of the door hinge spring

Note on seating the hinge shaft.

Step 12 Assemble bottom hinge

Assembling the bottom hinge.

Step 13 Align and attach hinges

Aligning and attaching hinges.

Step 14 Adjust the spring tension by turning counter-clockwise

Adjusting spring tension.

Note: If cabinet is equipped with integrated door light

Note about plugging in door light.

Note: Freezer doors have heater wires

Note about plugging in heater wires.

Step 15 Replace louvered grill and secure with four screws

Replacing the louvered grill.

To adjust door hang

Instructions for adjusting door hang.

IDL Lamp Replacement

Glass Insert - Swing Door

Required Tools

List of tools for glass insert replacement.

Note: For greater safety and ease of installation

Recommendation for two people to assist.

It is not necessary to remove the door from the cabinet

Note that door removal is not necessary.

Step 1 Turn the cooler off

Turning off the cooler.

Step 2 Remove the rubber gasket from the perimeter of the interior side of the door

Removing the rubber gasket.

Step 3 Remove the door handle (two screws)

Removing the door handle.

Step 4 Remove the screws that secure the four back plate pieces to the door

Removing back plates.

Step 5 Beginning at a corner carefully pry the broken glass loose from the frame

Prying loose broken glass.

Step 6 Remove any excess tape or glass from the lip on the door frame

Cleaning the door frame lip.

Step 7 To support glass insert use one-sided tape to secure two plastic shims

Supporting the glass insert with shims.

Step 8 Remembering to keep the tempered glass to the handle side of the frame

Placing the new glass insert.

Step 9 Square up door by adding shims between glass insert and the handle side of the door frame

Squaring the door with shims.

Glass Insert - Swing Door Continued

Step 10 Place double sided tape on all edges of glass insert to create a seal with the back plate

Applying tape to the glass insert.

Step 11 Replace bottom back plate then top and side plates

Replacing back plates.

Step 12 Replace the handle

Replacing the door handle.

Step 13 Snap the gasket back into the back plate

Snapping the gasket back.

Required Tools

List of tools for glass insert replacement.

Note: For greater safety and ease of installation

Recommendation for two people to assist.

It is not necessary to remove the door from the cabinet

Note that door removal is not necessary.

Follow steps 1 - 4 of refrigerator glass insert installation

Reference to earlier steps.

Step 5 Freezer doors have heater wires running through the door frame

Freezing door heater wire disconnection.

Follow steps 6 - 7 of refrigerator glass insert installation

Reference to earlier steps.

Step 8 Rejoin heater wires using self stripping connectors

Rejoining heater wires with connectors.

Glass Insert Gas Release (High Altitude Installation)

Required tools

List of tools for glass insert gas release.

Step 1 Slide left door (door positioned on outside track) to the right

Removing the slide door.

Step 2 Remove the nylon cord from the top of the door

Removing the nylon cord.

Step 3 Set the door (handle side down) on a flat surface

Preparing the door for work.

Step 4 Remove the screws that secure the four glass insert holders to the door

Removing glass insert holders.

Step 5 Beginning at the corners carefully pry the broken glass loose from the frame

Prying loose broken glass.

Step 6 Carefully use the drill with a 1/16” drill bit to drill through the spaces between the glass

Drilling holes for gas release.

Step 7 After gas is released from in between both panes use the silicone to reseal drill holes

Resealing drilled holes.

Step 8 Remove any excess tape or glass from the lip on the door frame

Cleaning the door frame lip.

Step 9 Remembering to keep the tempered glass to the handle side of the frame

Placing the new glass insert.

Step 10 Replace the four Aluminum glass insert holders

Replacing glass insert holders.

Step 11 Reconnect the nylon cord to the top of the door and replace the door as originally removed

Reconnecting the nylon cord and replacing the door.

GDM & T Series IDL Glass Insert Replacement

Warning: The Edges on the glass insert are very sharp

Warning about sharp glass edges.

Required tools

List of tools for glass insert replacement.

Step 1 Disconnect power to the cabinet

Disconnecting power.

Step 2 Disconnect IDL plug from cooler

Disconnecting the IDL plug.

Step 3 Loosen up the tension from torsion spring and remove door

Loosening spring and removing door.

Step 4 Remove doors handle and place door on a flat surface

Removing door handle and preparing door.

Step 5 Remove door gasket and back plates from the top, bottom and handle side

Removing gasket and back plates.

Step 6 Beginning at the upper corner in the handle side, carefully pry the broken glass loose

Prying loose broken glass.

Note: Do not forget to disconnect the glass insert heater wires before pulling it out

Disconnecting heater wires.

Step 7 Remove any excess tape and glass from the lip on the door’s frame

Cleaning the door frame lip.

Step 8 Install the new glass insert by pushing it into the light channel first

Installing the new glass insert.

Note: Make sure the TRUE logo on the insert, is located outside at the bottom of the frame

Note on logo placement.

Step 9 Install gasket back plates and gasket

Installing gasket and back plates.

Step 10 Mount door and tighten torsion spring

Mounting door and tightening spring.

Replacement of Door Frame Heater on IDL Freezer Doors

Tools Required

List of required tools.

Note: For greater safety and ease of installation

Safety note recommending two persons.

Note: It may not be necessary to remove the door from the cabinet

Note on not needing to remove the door.

Step 1 Disconnect electrical power to cabinet

Disconnecting electrical power.

Step 2 Remove door from cabinet and lay on a flat surface

Removing and preparing the door.

Step 3 Remove door gasket from the perimeter of the interior side of the door

Removing the door gasket.

Step 4 Remove door handle (2 screws)

Removing the door handle.

Step 5 Remove the screws that secure the four back plates to the door

Removing back plates.

Step 6 Pry out plastic shims wedged between glass insert and door frame

Prying out plastic shims.

Step 7 Before removing glass insert, disconnect the electrical wiring to door frame heater and heater inside glass insert

Disconnecting wiring to heaters.

Note: Wiring harness connection for your info

Wiring connection information.

Step 8 Remove glass insert by pushing on insert in upper corner of the handle side

Removing the glass insert.

Note: For safety, gloves and eye protection should always be worn when handling glass

Safety note for handling glass.

Step 9 Once glass has been removed, this will expose the heater wires inside door frame

Exposing heater wires.

Step 10 Remove any old tape from the lip on the door frame

Removing old tape from the door frame.

Step 11 Re-install glass insert by first installing two of the plastic shims to opposite ends of bottom door frame

Re-installing the glass insert.

Note: The etched TRUE logo is positioned on bottom corner of the tempered glass side

Note on logo placement.

Step 12 Square glass insert to door frame by adding shims to the handle side

Squaring the glass insert.

Step 13 Replace backplates, door handle and gasket

Replacing backplates, handle, and gasket.

Step 14 Re-install door on freezer (if removed)

Re-installing the door.

IDL Door-Wire Harness Replacement

Step 1 Unplug the cooler and door harness and remove louver grill

Unplugging and removing grill.

Step 2 Take the door off the cooler and place on a flat stable surface

Removing and preparing the door.

Step 3 Remove door gasket

Removing the door gasket.

Step 4 Remove back plastic

Removing back plastic.

Step 5 Remove the glass insert

Removing the glass insert.

Step 6 Remove the strain relief bushing on the underside of the door frame

Removing strain relief bushing.

Step 7 Pull light channel to expose lamp holder and door harness connection

Accessing lamp holder and harness.

Step 8 Cut the lamp holder wires directly above the lamp connectors

Cutting lamp holder wires.

Step 9 Remove the door harness

Removing the door harness.

IDL Harness Replacement

Step 10 Check the physical dimension of the new cord

Checking new cord dimensions.

Step 11 Place strain relief around the new door harness

Placing strain relief.

Step 12 Route door harness through frame hole to allow connection to lamp holder wires

Routing the door harness.

Step 13 Strip lamp holder wires and door harness wires

Stripping wires.

Step 14 Match wires (see wiring pairing) and crimp on end connectors to each set

Matching and crimping wires.

Step 15 Put the light channel back in its original position

Reinstalling light channel.

Step 16 Place the strain relief back into the door frame

Reinstalling strain relief.

Step 17 Replace the glass insert

Replacing the glass insert.

Step 18 Replace the back plastic

Replacing back plastic.

Step 19 Replace the gasket and hang the door

Replacing gasket and hanging door.

Note: A test should be run before re-hanging the door

Note on running a test before re-hanging.

Step 20 See figures 1 & 2

Routing harness per figures.

Step 21 Place "P" clip as shown

Placing the "P" clip.

Note: If larger cord is being used you will also have to replace the p-clip

Note on replacing p-clip for larger cords.

Step 22 Plug the harness receptacle into the ballast receptacle and reinstall the louver grill

Plugging in receptacle and reinstalling grill.

Step 23 Plug in the cabinet and test

Plugging in and testing.

Wire Pairing: Door harness to lamp holder

Wiring pairing guide for door harness and lamp holder.

Shimming the Glass Insert

1. Make sure that there is no damage to the door(s) or the cabinet

Checking for damage to door or cabinet.

2. Try to level the door(s), by adjusting the leveling legs

Leveling doors by adjusting legs.

3. Try to align the door(s) by adjusting the bottom hinge left or right on the swing type door(s)

Aligning doors via bottom hinge adjustment.

Warning: Safety Glasses Should Be Used When Handling Or Working With This Or Any Other Glass

Safety warning for handling glass.

a. Remove the gasket from the gasket base

Removing gasket from base.

b. Remove the screws holding the gasket base around the door and remove the gasket base

Removing gasket base screws.

c. Loosen up the glass insert around the door frame

Loosening glass insert.

d. Lift the door frame by prying from the bottom outer corner

Lifting the door frame.

e. Shim the glass insert wherever there is a space between the frame and the insert

Shimming the glass insert.

f. Press the insert against the door frame and re-install the gasket base and the gasket

Pressing insert and reinstalling gasket.

Shimming The Glass Insert Continued

Lock Installation - GDM - Model 23/26 Single Swing Door

Required Tools

List of required tools.

Step 1 Drill 1/4" pilot hole 37" from the top of the cooler

Drilling pilot hole for lock cup.

Step 2 Drill 2" hole into existing hole and align top of bit

Drilling hole for lock cup.

Step 3 Insert 3/4" hole saw into original, exterior pilot hole

Drilling insulation for lock cup.

Step 4 Mark a straight line, parallel to the lock cup knockout opening

Marking line for lock cup.

Step 5 Insert lock cup into drilled opening

Inserting lock cup and assembly.

Step 6 Install latch and secure with phillips washer head screw

Installing the latch.

Step 7 Prepare door trim for lock plate

Preparing door trim for lock plate.

Note: Consult Technical Service for assistance

Note for consulting technical service.

Barrel Lock Installation (GDM slide door models)

Required Tools

List of required tools.

Step 1 Mark center lines for barrel lock installation

Marking center lines for barrel lock installation.

Step 2 Drill hole for barrel lock

Drilling hole for barrel lock.

Step 3 Remove door jam gasket from left door jam

Removing door jam gasket.

Step 4 Mark plastic fill-in for alignment

Marking plastic fill-in for alignment.

Step 5 Cut plastic breaker

Cutting plastic breaker.

Step 6 Form lock box in foam

Forming lock box in foam.

Step 7 Install lock assembly

Installing lock assembly.

Step 8 Install fill-in plate and check latch

Installing fill-in plate and checking latch.

Reminder: Install left door gasket

Reminder to install left door gasket.

Step 9 Mark door for latch tube

Marking door for latch tube.

Step 10 Install lock bar assembly

Installing lock bar assembly.

Step 11 Position lock bar

Positioning lock bar.

Slide Barrel Lock (Top View)

Slide Barrel Lock (Front View)

Lock Installation (GDM -5 & GDM-5PT swing door models)

Required Tools

List of required tools.

First... Prepare for installation

Preparing for installation.

Installation Step 1 Drill 3/4" hole on outer cooler wall of foam

Drilling hole for lock installation.

Step 2 Drill 2" hole on inner cooler wall, centered over 3/4" hole

Drilling inner wall for lock.

Caution Do Not Drill Too Deep

Caution about drilling depth.

Step 3 Remove insulation so white-metal backing plate will fit in hole

Removing insulation.

Step 4 Check fit of locking cylinder after inserting through the outer cooler wall

Checking lock cylinder fit.

Step 5 Place white-metal backing plate over locking cylinder, into 2" hole

Placing backing plate and securing cylinder.

Step 6 Attach lock arm to locking cylinder with 1/2" screw

Attaching lock arm.

Step 7 Remove rubber gasket from plastic door channel

Removing door gasket.

Step 8 Determine proper height for strike plate extension to be engaged by lock arm

Determining strike plate height.

Step 9 Remove portion of the plastic channel wall where the strike plate will be located

Removing plastic channel section.

Step 10 Securely attach strike plate to metal frame

Attaching strike plate.

Step 11 Replace rubber gasket in plastic door channel

Replacing rubber gasket.

Step 12 Check for proper operation

Checking operation.

Step 13 Install split standard (2 pieces) in place of original one piece standard

Installing split standard.

Note: Shorter piece should be at top

Note on shorter piece placement.

Ratchet Lock & Plastic Door Stop - Slide Door

Required Tools

List of required tools.

Step 1 Remove left side door by lifting up and out of bottom track

Removing the left side door.

Step 2 Position ratchet bar over left side of right hand door, centered top to bottom

Positioning the ratchet bar.

Step 3 Drill through pilot hole in ratchet bar and into door frame with 1/8" drill bit

Drilling pilot hole for ratchet bar.

Caution: Do not drill beyond 3/4" to avoid hitting glass insert

Caution about drilling depth.

Step 4 Cut rubber gasket along the edges of the ratchet bar

Cutting gasket for ratchet bar.

Step 5 Replace left side door and check slide operation

Replacing door and checking operation.

Note: Ratchet bar may have to be bent in slightly

Note on bending ratchet bar.

Step 6 To lock cabinet, slide ratchet lock onto ratchet bar through slot

Locking the cabinet.

Ratchet Lock & Plastic Door Stop - Slide Door Continued

Required Tools

List of required tools.

Step 1 Remove left side door by lifting up and out of bottom track

Removing the left side door.

Step 2 Position the plastic door stop centered in the front door channel and mark it

Positioning and marking plastic door stop.

Step 3 Apply double-sided tape and position on previously marked spot

Applying double-sided tape.

Step 4 Drill 1/8" holes using the pre drilled holes of the plastic door stop as a template

Drilling holes for door stop.

Step 5 Install phillips counter-sunk screws provided

Installing screws for door stop.

Step 6 Replace left side door and check slide operation

Replacing door and checking operation.

Note: Length of door stop and number of screws determined by cooler model

Note on door stop length and screw count.

Lock Installation - TD Models

Required Tools

List of required tools.

Step 1 Replace the lid handle

Replacing the lid handle.

Step 2 Slide ratchet bar through notched handle

Sliding ratchet bar through handle.

Step 3 Slide locking cylinder on ratchet bar

Sliding locking cylinder.

General Instructions

Overshelf Option Installation - TSSU, TWT, TUC

Kit Contents

List of kit contents for overshelf.

Required Tools

List of required tools.

Installation Step 1 Place one flat washer on each of the 1/4-20 hex head bolts

Placing washer and inserting bolts.

Step 2 Hold the shelf support next to the threaded holes that are located along the edge on the back of the cabinet

Positioning shelf support.

Step 3 Carefully thread the 1/4-20 x 1-1/2" bolts into these threaded holes

Threading bolts into inserts.

Step 4 Repeat steps 2 and 3 to install the second shelf support

Installing the second shelf support.

Step 5 Hold the shelf up between the two mounted shelf supports and thread one 1/4-20x1" hex head bolt into each of the two threaded holes

Holding shelf and threading bolts.

Step 6 Adjust the shelf assembly so that the shelf supports are vertical

Adjusting shelf assembly.

Step 7 Firmly tighten each bolt using the 7/16 wrench

Tightening bolts.

Caution: Do not place more than 100 lbs. of weight upon the overshelf

Caution about weight limits and standing on overshelf.

Installing the Crumb Catcher / Accessory for the TSSU Series

Crumb Catcher Installation

Procedure for installing crumb catcher.

Required Tools

List of required tools.

Template Step 2 Place the crumb tray on the cabinet counter-top

Positioning crumb tray template.

Anchoring The Crumb Catcher Step 5 Remove any small burs from around the holes that have been drilled

Removing burs from drilled holes.

Installation Instruction Step 1 Remove the white plastic cutting board provided with the cabinet from the counter-top

Removing cutting board.

Step 3 Use adhesive tape to temporarily hold the crumb tray in position

Temporarily holding crumb tray.

Step 4 Remove the crumb tray and drill each hole using the 1/4” diameter drill bit

Drilling holes for crumb catcher.

Step 6 The plastic inserts are now ready to be installed

Installing plastic inserts.

Step 7 Fasten crumb catcher using the screws provided

Fastening crumb catcher.

Step 8 Place the 3/4” thick cutting board provided with this kit on the cabinet counter-top

Placing cutting board.

Field Installing The TSSU Series 19” Cutting Board

Required Tools

List of required tools.

Location Align the predrilled cutting board holes with the locating pins positioned on the stainless working surface

Aligning cutting board holes.

Surface Preparation Step 1 Tape off both sides of work surface so that errant drilling will not mark the side of the cabinet

Taping work surface.

Step 2 Place the anchor bracket over the top of the cutting board edge

Placing anchor bracket.

Step 3 Mark and drill holes

Marking and drilling holes.

Step 4 Assemble and lubricate riv-nut tool

Assembling and lubricating riv-nut tool.

Step 5 Insert rivnut assembly

Inserting rivnut assembly.

Step 6 Secure and turn crimping tool

Securing and turning crimping tool.

Step 7 Rivnut expansion

Rivnut expansion.

Anchoring The TSSU Hood Cover

Assembly Step 1 Locate and position hood cover

Locating and positioning hood cover.

Step 2 Remove slotted thumb screw

Removing slotted thumb screw.

Step 3 Place and align hood cover

Placing and aligning hood cover.

Step 4 Repeat for both ends of hood

Repeating for both ends.

Installing The TPP Series Service Shelf

Required Tools

List of required tools.

Surface Preparation Step 1 Mask off the mounting surface

Masking mounting surface.

Step 2 Positioning service shelf

Positioning service shelf.

Step 3 Mark and drill mounting holes

Marking mounting holes.

Step 4 Thread rivnut onto tool and insert assembly

Threading rivnut onto tool.

Caution: Do not turn hex wrench or rivnut will strip out

Caution about overtightening.

Step 5 Turn hex nut, break loose, and remove tool

Turning hex nut, breaking loose, removing tool.

Step 6 Final Positioning - Remove tape and replace shelf

Removing tape and replacing shelf.

Align and screw bolts into threaded rivnuts

Aligning and screwing bolts into threaded rivnuts.

Field Installing The TPP Service Shelf

Required Tools

List of required tools.

Surface Preparation Step 1 Tape off area for anchoring

Taping off area for anchoring.

Step 2 Positioning shelf legs

Positioning shelf legs.

Step 3 Centering shelf legs

Centering shelf legs.

Step 4 Adjusting rear legs for positioning

Adjusting rear legs for positioning.

Step 5 Marking elevated surface

Marking elevated surface.

Step 6 Assemble and lubricate riv-nut tool

Assembling and lubricating riv-nut tool.

Step 7 Insert rivnut assembly

Inserting rivnut assembly.

Step 8 Secure and turn crimping tool

Securing and turning crimping tool.

Step 9 Rivnut expansion

Rivnut expansion.

Note: Hardware is tapped to rear leg of service shelf

Note on hardware tapping.

Sneeze Guard Option Installation - TSSU

Kit Contents

List of kit contents for sneeze guard.

Required Tools

List of required tools.

Installation Step 1 Place one flat washer on each of the 1/4-20" hex head bolts

Placing washers on bolts.

Step 2 Insert one 1/4-20 x 1-1/2" bolt into each of the two holes on the support component

Inserting bolts into support component.

Step 3 Screw the bolts into the threaded inserts until they are hand tight

Threading bolts into inserts.

Step 4 Repeat steps 2 and 3 for the remaining support components

Repeating steps for other end.

Step 5 Remove the protective covering from the clear plastic shield

Removing protective covering.

Step 6 Secure the clear plastic shield to the supports by installing the four #8-32 knurled waferhead screws

Securing plastic shield.

Step 7 Adjust the two support components so that they are positioned straight up

Adjusting and tightening supports.

Cleaning and Care

Care and cleaning instructions for sneeze guard components.

Castor or Leg Frame Installation

Castor or Leg Frame Installation

Instructions for installing castors or leg frames.

GDM-33CPT Castor Mounting Assembly

TDD-1 CO2 Knock-out

This instruction is True's recommended procedure for installing a remote CO2 container

Procedure for installing remote CO2 container.

Required Tools

List of required tools.

Step 1 Remove black knockout plug with a pair of pliers

Removing knockout plug.

Step 2 Use drill and bit to bore hole straight back through wall into compressor compartment

Boring hole for CO2 line.

Step 3 Snake CO2 line through hole down and around exiting behind rear castor underneath rear grill

Routing CO2 line.

Step 4 Seal hole around CO2 line with silicone sealer to prevent cold air leakage

Sealing hole.

TDD-2,3,4 (and Club Top models) CO2 Knock-out

This instruction is True's recommended procedure for installing a remote CO2 container

Procedure for installing remote CO2 container.

Required Tools

List of required tools.

Step 1 Remove black knockout plug with a pair of pliers

Removing knockout plug.

Step 2 Use drill to bore hole through insulation while holding tool at a 30° angle

Boring hole through insulation.

Step 3 Snake CO2 line through knockout hole and newly drilled hole and route through rear grill louvers

Routing CO2 line.

Step 4 Seal hole around CO2 line with silicone sealer to prevent cold air leakage

Sealing hole.

Vandal Panel Installation for a GDM-33CPT-54

Kit Materials

List of kit materials.

Step 1 Position upper mounting brackets

Positioning upper mounting brackets.

Step 2 Mount lower mounting brackets

Mounting lower mounting brackets.

Step 3 Slide Vandal panel onto brackets

Sliding Vandal panel onto brackets.

Step 4 Repeat for other panel on back of cabinet

Repeating for other panel.

Vandal Panel - GDM-69

Required Tools

List of required tools.

Step 1 Unplug the cooler

Unplugging the cooler.

Step 2 Position bracket "A"

Positioning bracket A.

Step 3 Center the bracket

Centering bracket.

Step 4 Drill holes for bracket A

Drilling holes for bracket A.

Step 5 Rivet bracket A

Riveting bracket A.

Step 6 Mount brackets "B"

Mounting brackets B.

Important: Check all dimensions carefully before drilling

Caution to check dimensions.

Step 7 Position one bracket "B"

Positioning bracket B.

Step 8 Check the height of the brackets before drilling

Checking bracket height.

Vandal Panel - GDM-69 Continued

Step 9 Drill and fasten bracket B

Drilling and fastening bracket B.

Note: The right side of the cooler is determined when facing the cooler

Note on defining right side.

Step 10 Drill holes in door tracks

Drilling holes in door tracks.

To Mount The Panels Step 1 Slide panel into vertical track

Sliding panel into vertical track.

Step 2 Hang center panel on bracket "A"

Hanging center panel on bracket A.

Note: Panels may be shipped in the locked position

Note on locked panels.

Step 3 Lock panels into brackets "B"

Locking panels into brackets B.

Troubleshooting

Calibrate Temperature Control

Required Tools

List of required tools.

Refrigerator Instructions

Instructions for calibrating refrigerator temperature control.

Freezer Instructions

Instructions for calibrating freezer temperature control.

Calibration Steps

Steps for calibrating temperature control.

Step 1 Unplug the cabinet

Unplugging the cabinet.

Step 2 Set control to setting #9

Setting control to #9.

Step 3 Remove control from evaporator housing and locate screws

Removing control and locating screws.

Step 4 Use jeweler screwdriver and adjust control accordingly

Adjusting temperature control.

Note: 1/4 turn is equal approximately 4 degrees

Note on turn adjustment equivalence.

Step 6 Re-install control into housing

Re-installing the control.

Step 7 Reset control to setting #5

Resetting control to #5.

Step 8 Check control operation with thermometer

Checking control operation.

Calibration Instructions For 20DT Digital Thermometer

Calibration instructions for 20DT thermometer.

Step 1 Note on factory calibration

Note on factory calibration.

Step 2 Immerse the sensor in a known temperature circulated liquid bath

Immersing sensor in liquid bath.

Step 3 Recalibrating the thermometer

Recalibrating thermometer.

Calibrate Temperature Control Continued

Trouble Shooting and Service Chart

Complaint

List of common compressor complaints.

Possible Cause

Potential causes for compressor complaints.

Repair

Recommended repairs for compressor issues.

Trouble Shooting and Service Chart Continued

Complaint

List of common unit complaints.

Possible Cause

Potential causes for unit complaints.

Repair

Recommended repairs for unit issues.

Capillary Tube Replacement Instructions

Tools Required

List of required tools.

Step 1 Inspect supplied cap tube suction line assembly

Inspecting the capillary tube assembly.

Note: You may have to secure the cap tube to the suction line with the supplied foil tape

Note on securing cap tube.

Step 2 Remove the power supply to the cabinet

Removing power supply.

Step 3 Recover the refrigerant from the unit

Recovering refrigerant.

Capillary Tube Replacement Instructions Continued

Step 4 Remove all of the shelves

Removing shelves.

Step 5 Remove the wire back guards on the back wall of the cabinet

Removing wire back guards.

Note: These are in freezers models only

Note for freezers only.

Step 6 Disconnect the evaporator drain line

Disconnecting drain line.

Step 7 Drop down the evaporator housing by removing the 1/4”screws that hold it in place

Lowering evaporator housing.

Step 8 Remove the left side evaporator up and remove them

Removing left side evaporator screws.

Step 9 Un-solder the capillary tube from the evaporator

Unsoldering capillary tube.

Note: The use of a heat shield is recommended

Recommendation for heat shield.

Step 10 Un-solder the accumulator from the Evaporator and the suction line

Unsoldering accumulator.

Note: The use of a heat shield is recommended

Recommendation for heat shield.

Step 11 Drill a 5/8” hole in the floor as close to the Left rear corner of the cabinet as possible

Drilling a hole in the floor.

Step 12 Place the cap tube suction line assembly in the cabinet

Placing capillary tube assembly.

Step 13 Mark the suction line where it needs to be cut

Marking suction line for cutting.

Step 14 Join and solder the suction line and the accumulator

Joining suction line and accumulator.

Note: This step is easier to preform outside of the cabinet

Note on performing step outside cabinet.

Step 15 Insulate the suction line where the line come out under the cabinet

Insulating suction line.

Step 16 Place the cap tube suction line with the accumulator inside the cabinet

Placing assembly inside cabinet.

Step 17 Solder the capillary tube in to the evaporator as well as the accumulator to the evaporator

Soldering capillary tube and accumulator.

Step 18 Solder the suction line down where the suction line meets with the below compressor pull out

Soldering suction line.

Step 19 Solder the cap tube to the into the copper line that goes into the outlet of liquid line filter drier

Soldering cap tube to copper line.

Step 20 Pressurize the system using nitrogen to leak check

Pressurizing system for leak check.

Step 21 Pull a vacuum on the unit

Pulling vacuum on unit.

Note: The use of a micron gauge is recommended

Note on micron gauge recommendation.

Step 22 Reassemble the evaporator section

Reassembling evaporator section.

Step 23 Check the cabinet operation

Checking cabinet operation.

Step 24 Place the cover over the new cap tube suction line assembly and secure it to the back wall

Placing and securing cover.

Step 25 Place the back guards back in the unit

Replacing back guards.

Step 26 Finish reassembling the cabinet

Finishing cabinet reassembly.

Troubleshooting Refrigeration Chart - Refrigerator

Problem: Cabinet is running warm

Troubleshooting warm refrigerator.

Troubleshooting Refrigeration Chart - Refrigerator Continued

Troubleshooting Refrigeration Chart - Freezer

Problem: Cabinet is running warm

Troubleshooting warm freezer.

Troubleshooting Refrigeration Chart - Freezer Continued

Capillary Tube Replacement Instructions Refrigerators and Freezers

Refrigerators

Methods for replacing capillary tubes in refrigerators.

Freezers

Methods for replacing capillary tubes in freezers.

Field Troubleshooting

If the Compressor Will Not Run

Troubleshooting compressor not running.

Safety Note on Discharging Capacitors

Safety note on discharging capacitors.

Substituting a Start Capacitor

Substituting start capacitor.

Using Ohmmeter for Capacitor Testing

Using ohmmeter for capacitor testing.

If the Motor Compressor Starts But Trips Repeatedly On The Overload Protector

Troubleshooting compressor tripping on overload.

Low Suction Pressure Indicating Charge Loss

Low suction pressure indicating charge loss.

Field Troubleshooting

If the Compressor Runs But Will Not Refrigerate

Troubleshooting compressor running but not refrigerating.

Diagnosis and Replacement of Freezer Cabinet Components

Diagnosis and replacement of freezer components.

1. Defrost Time Clock

Checking defrost time clock functionality.

2. Defrost Control On The Evaporator Drain Pan

Checking defrost control on drain pan.

3. Coil Defrost Heater

Checking coil defrost heater.

4. Drain Tube Heater

Checking drain tube heater.

Field Troubleshooting

5. Cabinet Temperature Control

Checking cabinet temperature control.

6. Evaporator Fan Motor

Checking evaporator fan motor.

7. C.R.O. Valve

Checking C.R.O. valve.

8. Fan Door Switch (and lights on "T" Models)

Checking fan door switch.

Freezer Perimeter Heater Wire Replacement

Instructions for replacing freezer perimeter heater wire.

Troubleshooting Fluorescent Lighting Circuits

Warning: Use Qualified Technicians

Warning about using qualified technicians.

Testing Ballast: Electromagnetic Rapid Start

Tests for electromagnetic rapid start circuits.

Testing Ballast: Instant Start Electronic

Tests for instant start electronic circuits.

Testing Ballast: Preheat Fluorescent Light Circuit

Tests for preheat fluorescent circuits.

GDM & T Series Coolers IDL Connector

2 Door IDL Cooler Wiring and Y cord on 3 door cabinet

Wiring diagram for 2-door IDL cooler.

2 Door IDL Freezer Wiring and Y cord on 3 door cabinet

Wiring diagram for 2-door IDL freezer.

Equipment Care and Cleaning

Cleaning Your Cabinet

Cleaning Your Cabinet

Instructions for cleaning the cabinet.

Stainless Steel Equipment Care and Cleaning NAFEM

Stainless Steel Equipment Care and Cleaning

Introduction to Stainless Steel Care

Introduction to stainless steel care.

Steps to Prevent Stainless Steel Rust

Steps to prevent stainless steel rust.

1. Use the Proper Tools

Using appropriate tools for cleaning.

2. Clean with the Polish Lines

Cleaning with polish lines.

3. Use Appropriate Cleaners

Using appropriate cleaners.

4. Treat Your Water

Treating water for cleaning.

5. Keep Your Food Equipment Clean

Keeping equipment clean.

Don't Use

List of items not to use for cleaning.

Stainless Steel Equipment Care and Cleaning

6. Rinse, Rinse, Rinse

Rinsing procedures after cleaning.

7. Never Use Hydrochloric Acid

Warning against using hydrochloric acid.

8. Regularly Restore / Passivate Stainless Steel

Restoring passivity of stainless steel.

Recommended Cleaners for Specific Situations

Recommended cleaners for various cleaning tasks.

Stainless Steel Equipment Care and Cleaning

What Does Corroded Stainless Steel Look Like?

Description of corroded stainless steel.

Passive Film Breakdown

Explanation of passive film breakdown.

Stainless Steels Are Susceptible to Rusting

Information on stainless steel rusting susceptibility.

Stainless Steel Equipment Care and Cleaning

Enemies of Stainless Steel

Factors that break down stainless steel passivity.

1. Mechanical Abrasion

Explanation of mechanical abrasion.

2. Deposits & Water

Explanation of deposits and water effects.

3. Chlorides

Explanation of chloride effects.

Review

Summary of stainless steel care points.