Beverage Air T50LGPHD-5 User Manual

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SERVICE &

INSTALLATION

MANUAL

1/03

51-1450-01

CARRIER COMMERCIAL REFRIGERATION, INC.

LOW TEMPERATURE VERTICAL FREEZERS

Providing BEVERAGE-AIR • FRIGIDAIRE • KELVINATOR • UNIVERSAL NOLIN Products/Services

If additional information is necessary, call the factory.

Our toll free number is 1-800-684-1199.Technical assistance engineers are willing to assist you in any way possible. Office hours are from 8:00a.m. to 5:30 p.m., Eastern Standard Time.

Important information is contained in this manual which should

be retained in a convenient location for future reference.

ALL DATA AND INFORMATION IN THIS MANUAL IS SUBJECT TO CHANGE WITHOUT NOTICE.

MODEL DESIGNATION INFORMATION

PART NO. MODELS STYLE CONDENSER SPECIAL USE

52-1923-02 BT30CW-EXPR SOLID ONE DOOR TOP MOUNT EXPLOSION PROOF 52-1958-01 BT30CWFMS-2 SOLID ONE DOOR TOP MOUNT FLAMMABLE MAT'L STORAGE 52-1993-06 BT30FS-4 SOLID ONE DOOR TOP MOUNT SCIENTIFIC GENERAL PURPOSE 52-1993-12 BT50FS-4 SOLID TWO DOOR TOP MOUNT SCIENTIFIC GENERAL PURPOSE 52-1993-18 BT80FS-4 SOLID THREE DOOR TOP MOUNT SCIENTIFIC GENERAL PURPOSE 52-1993-21 BTL30FS-4 SOLID ONE DOOR TOP MOUNT SCIENTIFIC LOW TEMPERATURE 52-1993-22 BTQ50FSHD-4 SOLID QUAD DOOR TOP MOUNT SCIENTIFIC LOW TEMPERATURE

52-1993-25 ST30FSBB-4 SOLID ONE DOOR TOP MOUNT BLOOD STORAGE

52-1993-28 STL30FSBB-4 SOLID ONE DOOR TOP MOUNT BLOOD STORAGE LOW TEMP 52-1991-07 T30HSP-4 SOLID ONE DOOR TOP MOUNT HARDENING 52-1991-36 T30LGP-5 GLASS ONE DOOR TOP MOUNT 52-2026-10 T30LGPE-5 GLASS ONE DOOR TOP MOUNT EXPORT (220V 50HZ) 52-1997-26 T30LGPRBR-5 GLASS ONE DOOR REMOTE TOP 52-1991-50 T30LSP-5 SOLID ONE DOOR TOP MOUNT 52-1991-69 T30LSPHD-5 SOLID ONE DOOR TOP MOUNT HEAVY DUTY 52-1991-14 T50HSQHP-4 SOLID QUAD DOOR TOP MOUNT HARDENING 52-1991-15 T50HSQL-4 SOLID QUAD DOOR TOP MOUNT HARDENING 52-1991-38 T50LGP-5 GLASS TWO DOOR TOP MOUNT 52-2026-11 T50LGPE-5 GLASS TWO DOOR TOP MOUNT EXPORT (220V 50HZ) 52-1991-41 T50LGPHD-5 GLASS TWO DOOR TOP MOUNT HEAVY DUTY 52-1997-24 T50LGPR-5 GLASS TWO DOOR REMOTE TOP 52-1991-54 T50LSP-5 SOLID TWO DOOR TOP MOUNT 52-1997-33 T50LSPR-5 SOLID TWO DOOR REMOTE TOP 52-1991-44 T80LGP-5 GLASS THREE DOOR TOP MOUNT 52-2026-12 T80LGPE-5 GLASS THREE DOOR TOP MOUNT EXPORT (220V 50HZ) 52-1997-25 T80LGPR-5 GLASS THREE DOOR REMOTE TOP 52-1991-60 T80LSP-5 SOLID THREE DOOR TOP MOUNT 52-2026-07 ULG30BF-5 GLASS ONE DOOR BOTTOM MOUNT EXPORT (220V 50HZ) 52-1992-19 ULG30BS-5 GLASS ONE DOOR BOTTOM MOUNT 52-1992-20 ULG50BC-5 GLASS TWO DOOR BOTTOM MOUNT 52-2026-08 ULG50BF-5 GLASS TWO DOOR BOTTOM MOUNT EXPORT (220V 50HZ) 52-1997-22 ULG50RD-5 GLASS TWO DOOR REMOTE BTM 52-1992-23 ULG80BC-5 GLASS THREE DOOR BOTTOM MOUNT 52-2026-09 ULG80BF-5 GLASS THREE DOOR BOTTOM MOUNT EXPORT (220V 50HZ) 52-1997-23 ULG80RD-5 GLASS THREE DOOR REMOTE BTM 52-1997-32 ULS30US-5 SOLID ONE DOOR REMOTE TOP

This manual pertains to units produced beginning with serial number

TABLE OF CONTENTS 1

TABLE OF CONTENTS-LOW TEMP. VERTICAL

MODEL CODES EXAMPLES..................................................2

HANDLING & INSTALLATION ..............................................5

TOP MOUNT, GLASS PULL DOOR (1-,2-,& 3-DR MODELS)

Dimensional Drawings........................................................10

Freezer Specifications ..........................................................7

BOTTOM MOUNT, GLASS PULL DOOR (1-, 2-, 3-DR MODELS)

Dimensional Drawings........................................................12

Freezer Specifications ........................................................13

TOP MOUNT, SOLID PULL DOOR (1 & 2-DR MODELS)

Dimensional Drawings ......................................................14

Freezer Specifications ........................................................15

TOP MOUNT, SOLID PULL DOOR HARDENING & FLASH FREEZERS

Freezer Specifications ........................................................16

ELECTRICAL & REFRIGERATION INFORMATION

........................................................................17

ELECTRICAL & REFRIGERATION INFORMATION BT30CWFMS

........................................................................79

ELECTRICAL & REFRIGERATION INFORMATION BT30CWEXPR

......................................................................85

WIRING & PIPING INFORMATION REMOTE CABINET

..........................................................103

MAINTENANCE & REPAIR ..........................................47

PA RTS LIST....................................................................117

2 INTRODUCTION

These Freezers have been designed to maintain a low temperature environment. These multi-purpose freezers are available in one-, two-, and three-door solid or glass door models.

Except for routine cleaning, these low temperature cabinets will require little maintenance. In the unusual event that repair should be necessary, this manual presents information that is helpful in maintaining, diagnosing, and repairing these cabinets.

Low Temperature Vertical Freezers

Introduction

MODEL CODES - KELVINATOR & KELVINATOR SCIENTIFIC 3

MODEL CODES

Kelvinator Model Example: T30LGPR-5

T30LGP R-5

T = Top Mount B = Bottom Mount FS = Food Service

30, 50, 80 - Cubic Feet

L = Low Temp M - Medium Temp H = Hardening Cabinet

G= Glass Door S = Solid Door

P = Pull Door S = Sliding Door Q = Quadrant Pull Door

R = Remote E = Export ET = Export Transformer Customer Variations:

BR = Baskin Robbins DQ = Dairy Queen DQL = Dairy Queen Light Duty

4 = Revision Level

Kelvinator Scientific Model Example: ESTL50RSFMS-4

ESTL50RSFMS -4

E = Export ET = Export (Transformer)

S = Scientific B = Base Scientific

T = Top Mount B = Bottom Mount C = Chest L = Hardening Cabinet

30, 50, 80 = Cubic Feet

F = Freezer R = Refrigerator

G = Glass Door S = Solid Door I = Incubator (Solid Door)

FMS = Flammable Material Storage CH = Chromatography BB = Blood Bank EXPR = Explosion Proof R = Recorder on Incubator Customer Variations:

XXX

4 = Revision Level

4 MODEL CODES – UN

MODEL CODES

Universal Nolin Model Example: UMG50BS-4

UMG50B S-4

U = Upright S = Scientific (upright)

L = Low Temp. M = Med Temp.

H = Heated Glass (medium temp.) G = Glass S = Solid O = Open T = Sliding Glass Door (track)

30, 50, 80 = Cubic Feet

R = Remote on Bottom Mounted Upright U - Remote on Top Mounted Upright T = Top Mounted Compressor B = Bottom Mounted Compressor S = Single Facing (sliders) D = Double Facing

S = 115V / 60 Hz. D = 208/230V / 60 Hz. / 1 Ph. P = 208V / 60 Hz. / 3 Ph. T = Transformer F = 220V / 50 Hz.

4 = Revision Level

SECTION I – HANDLING & INSTALLATION

HANDLING & INSTALLATION 5

FREIGHT DAMAGES & SHORTAGES

The cabinet was inspected and

packaged at the factory, and should arrive in excellent condition. The transportation company or other par ties involved in the shipment are responsible for loss and/or damage. Always make an inspection before and after uncrating. Inspect the crated unit(s) before locating (preferably at the point of unloading by the transportation company).

INSPECTING FOR DAMAGES

Always use care when removing shipping

tape, blocks, pads, hardware or other material until you are satisfied that the unit is completely operational.Contact the factory if technical assistance is required.

Check the cartons or containers.If these are damaged in any way, open them and inspect the contents in the driver’s presence. If damage is detected:

1. Have the driver note the nature and extent of the

damage on the freight bill.

2. Notify the transportation company at once to request

an inspection. Carrier claim policies usually require inspections to be made within 15 days of delivery.

3. If damage is noticed, file a claim with the

transportation company.

FILING A CLAIM

File a claim for loss at once with the transportation company for:

A. A cash adjustment; B. Repairs; or C. Replacement. When filing your claim, retain all packaging materials

and receipts.

HANDLING THE CABINET

The refrigeration system of the cabinet is

designed to operate with the cabinet located on a level surface. Do not tilt the cabinet more than 10° to any side. If the cabinet must be tilted on an angle for handling or moving purposes, allow it to sit in an upright position 30 minutes prior to starting.

CHOOSING A LOCATION

This model cabinet should be situated to allow proper air circulation. These cabinets require a 2" minimum clearance behind for proper air circulation.

The cabinet must be installed on sturdy, solid, level floor.

The cabinet must be located so it can be plugged into a properly grounded three-prong electrical outlet of 115 volt, 60 hz.The electrical outlet should not be controlled by a wall switch which might be turned off accidentally.

UNCRATING THE CABINET

The cabinet should be moved as close as possible to the operating location before removing crate base. Be sure to follow the steps in the “INSPECTING FOR DAMAGES”instructions.

INSTALLING THE CABINET

(Models with Top Mounted Compressor)

Whenever possible leave the crate base on the cabinet until it is moved close to the final position. When it is necessary to move the cabinet through a doorway, it may be necessary to remove the crate base.

Wood runners are provided on the underside of the cabinet for ease in sliding.These runners should be left attached to the cabinet when the crate base is removed and should remain attached until after the legs are installed.The cabinet can then be pushed around more easily without scratching the floor. The runners also prevent damage to the electrical receptacle and condensate pan hardware on the cabinet bottom.

After the cabinet has been moved to the approximate final location, remove the package containing the legs from the cabinet interior. Tape the doors to prevent accidental opening when handling. Raise the sides of the cabinet high enough to mount the legs at the locations provided on the bottom of the cabinet.

IMPORTANT:

AFTER REMOVAL OF WOOD RUNNER, REPLACE BOLT “A” INTO LEG MOUNTING BRACKETS.THIS IS EXTREMELY IMPORTANT TO THE SECURE ATTACHMENT OF THE CABINET LEG. THERE MUST BE FOUR (4) BOLTS SECURING EACH LEG.

Level the cabinet by means of the leg adjustments. Cabinet doors are self-closing, and the cabinet must be level to operate properly.

NOTE:

IMPORTANT:

NOTE:

6 HANDLING & INSTALLATION

CONDENSATE PAN INSTALLATION INSTRUCTIONS

MAKE SURE THE CABINET IS DISCONNECTED

FROM ITS POWER SOURCE

1. Remove and discard protective cover over electrical

receptacle on bottom of cabinet

2. Bend down front part of housing. (See above.)

3. Insert condensate evaporator pan assembly into the slide

supports on the underside of the cabinet by pushing toward back of cabinet until it stops.

4. Plug supply cord into receptacle in underside of cabinet.

5. Bend up front part of housing. Line up slot with rivnut in

cabinet bottom and insert thumbscrew through slot onto rivnut in cabinet bottom. Insert thumb screw through slot onto rivnut and tighten.

6. The assembly will now operate when power is supplied to

the cabinet.

7. Inspect rear of cabinet to ensure that the drain line from

the evaporator is properly positioned over the condensate pan.

On top mount models, allow a minimum of twelve (12) inches between the top of the cabinet and ceiling and two (2) inches from the back of the cabinet to the wall, for proper air circulation through the condensing unit.

(Models with Bottom Mounted Compressor)

Remove the crate base mounting clips located behind the front grill.Slide the cabinet forward on the crate base to clear the rear mounting clips.

After removing the crate base, move the cabinet into location. Make sure the cabinet is level to ensure operation of the “self-closing” doors.

Allow a minimum of two (2) inches between the back of the cabinet and the wall for proper air circulation through the condensing unit.

CABINET STARTUP

Once the cabinet has been located in its permanent location and the proper power and grounding have been provided, the following items must be checked or completed:

1. Cut and remove the compressor hold-down band (if applicable) so the compressor “floats” freely.

2. Check for traces of oil on the compressor pan which could mean a broken or leaking refrigeration line.

2. UNDER NO CIRCUMSTANCE SHOULD THE

COMPRESSOR BE STARTED WHEN OIL IS PRESENT UNTIL INSPECTED BY A SERVICE TECHNICIAN.

3. INSPECT THE FACTORY WIRING FOR TERMINALS THAT MIGHT HAVE VIBRATED LOOSE IN SHIPPING. TIGHTEN ALL SCREW-TYPE TERMINALS.

4. Check the refrigeration lines to see that they are “free” and no damage was done during shipping.

5. Check fan blade(s) for “free” operation.

6. Turn on the main power switch. Once the compressor starts, the voltage should be checked at the compressor terminals to determine if there is proper voltage to the compressor.The voltage should not e xceed 10% abo v e or below the rated compressor voltage.

EXAMPLE: If the voltage reads 115 volts with no load and it

drops below 103 volts when the compressor starts, it may indicate that the supply wiring is too small or that the wire run is too long.

7. Make sure that the drain line has not been dislodged or broken during shipping and that the drain trap terminates properly in the condensate pan or floor drain. (See Condensate Pan on top mounted compressor.)

8. Listen for any unusual noise such as lines vibrating, etc. Correct problem by tightening screws, slightly bending tubing, etc.

9. Check proper tension on doors. (See Door Torque Adjustment.)

10. NOTE: Allow cabinet to pull down and cycle prior to loading with product.

11. a 2" clearance must be maintained between the back wall and product shelving to allow for proper air movement within the cabinet.

SYSTEM CONTROL/OPERATION ELECTRO-MECHANICAL

Thermostat Settings

The freezer is shipped from the factory with a thermostat setting of approximately the mid-point of the operating range. Final thermostat setting must be made in the field.

Allow the cabinet to operate until the compressor cycles on the thermostat. The normal operating temperature range for the refrigerator is:

0°F to -20°F (-17°C to -26°C) for freezer models; 0°F to -40°F (-17°C to -40°C) for low temp. freezer models; and 5°F to 122°F (-15°C to -50°C) for incubator models The thermostat is easily adjusted with a standard

screwdriver. NOTE: DO NOT OPERATE THE CABINET WITH

THERMOSTAT SETTINGS BELOW:

-23°F (-30°C) ON FREEZERS;

-40°F (-40°C) ON LOW TEMP. FREEZERS;

The cabinet thermostat is located on the electrical box (top mount models) top left hand side of cabinet. It can be accessed without re4moving the front top panel with the use of a stepladder, and a screw driver.

Cabinet Operation (Freezer & Low Temp. Freezer)

There are two thermodiscs located on the evaporator coil. The purpose of one is to keep the evaporator fan motors and anti-condensate heater off after defrost cycles until the coil reaches 32°F (O°C). This prevents moisture from being pulled down into the product area and provides faster pulldown.The purpose of the other control is to de-energize the defrost heater and to energize the trip solenoid in the time clock to terminate the defrost cycle when the fin coil reaches 62°F (17°C).

FIGURE 2

When the refrigeration system first starts up, the room temperature and the coil temperature are above 62°F(17°C). The fan delay thermostat is open and the fans and anticondensate heaters remain off.The fan motors will come on when the evaporator temperature is pulled down to approximately 32°F (0°). This fan delay control cannot be adjusted. If a single fan motor fails to start when the thermostat is below 32°F (0°C), it may be an indication of a defective fan motor. If all fan motors fail to start, it is an indication of a defective fan delay control.

NOTE: ON SOME MODELS, THE EVAPORATOR FANS TURN OFF WHEN THE DOORS ARE OPENED.

SYSTEM CONTROL/OPERATION ELECTRONIC (PULSE)

Note: The “Pulse” information that follows pertains to set-up and basic operation. For more comprehensive operation, repair, and maintenance information refer to the Pulse service manual part number 51-2484-00.

Display Settings

the freezer is shipped from the factory with a thermostat setting of approximately the midpoint of the operating range. Final thermostat setting must be made in the field.

The normal operating temperature ranges are: 0°F to -20°F (-17°C to -26°C) for freezer models;

0°F to -40°F (-17°C to -40°C) for low temp. freezer models; and 5°F to 122°F (-15°C to -50°C) for incubator models NOTE: DO NOT OPERATE THE CABINET WITH

THERMOSTAT SETTINGS BELOW:

-23°F (-30°C) ON FREEZERS;

-40°F (-40°C) ON LOW TEMP. FREEZERS;

Cabinet Temperature & Defrost Management

These functions are controlled by a computerized control board located in the electrical box behind the front grill.The control board utilizes 3 inputs, a display board, and two temperature sensors.The display allows the user to monitor the change the cabinet temperature (located with-in the door frame).

Cabinet Operation

When supply power is hooked up to cabinet and power switch is turned on. The control board has a built-in 3 minute delay on start up.The cabinet temperature display will read the current cavity temperature. The cavity temperature set point can now be set or checked by depressing lower right button on the display board.The upper right button will raise the cabinet temperature set point. this can be done with an ordinary paper clip.the lower left button is a service interface and only a qualified service technician should activate this program. the evaporator fans should start up as the coil reaches 28°F the cabinet temperature will continue to drop until the cavity temperature set point is reached.

NOTE: Control board only breaks on side of supply voltage to the compressor and defrost circuit.

Notable points

1. The system utilizes a 3 minute off cycle timer to prevent

short cycles.

2.When the system initiates a defrost, the setpoint will flash

on and off until the defrost is terminated and the cavity reaches the setpoint. At this time the cavity temperature will be displayed as normal.

Display Functions

NOTE: Use a paper clip to access the function keys.

1. Pressing the top right button on the display unit will raise

the set point one degree. Holding the button down will scroll the adjustment.

2. Pressing the bottom right button on the display unit will

lower the set point one degree. Holding the button down will scroll the adjustment. After an adjustment is made the cavity temperature will automatically return to the display after a brief moment.

3.When the system enters a defrost state, the set point will

flash on and off repeatedly on the display and continue to flash until the defrost state is terminated and the cavity temperature returns to the set point. At this time the cavity temperature will be displayed as normal.

4.Touching an y ke y on the display will ac knowledge and turn

off the local audible alarm as well as the optional remote alarm.

IMPORTANT: When the freezer is plugged in or anytime power is disrupted and then restored, the system will pull down to the set point, begin the cycle, and then initiate a defrost in 3.2 hours from initial start-up.This is normal and is part of the initialization mode for the microcontroller to collect data from the system.

The Service Interface and the Service Menu

The service menu offers the service technician direct control of the components of the system.This allows the technician to force the system into a defrost state or the refrigeration state. This feature also allows the technician to toggle the state in order to analyze separate components of the system (e.g., start kit, compressor, heaters, etc.).

1. To access the service menu, press and hold lower left

button on the display with a paper clip for 2 seconds.The system will enter the service menu and c0 will alternately flash with evaporator temperature. This is the top of the service menu. to exit the service menu, press the service key again at any time.

2.The service menu offers five functions: Refrigeration

state, Defrost state, code revision level indication, the option to blank the display (code version 1.6 and later),

Service Interface

Indicates T emp . below 0°F

Setpoint up Setpoint down

HANDLING & INSTALLATION 7

Celsius or Fahrenheit operation (code version 1.6 and later), and Error code history (code 3.1 and later). While in the service menu, the down key serves to scroll the men and the up key serves as a toggle 6to activate and deactivate the function state.

A.Hold lower left button for 2 seconds to enter service

menu.

1. Upper right key toggles current menu item “on” (indicated by a “1” in the right hand digit of the display and an “off” (indicated by a “0” in the right hand digit of display).

2. Lower right key scrolls down through the menu.

a) 1st item: Refrigeration state (on or off)/ ev aporated

temp.This state is denoted by a “C0”or a “C1” on the display alternately flashing with the evaporator temperature.

b) 2nd Item: Defrost state (on or off) This state is

denoted by a “d0” or a “d1” on the

display. c) 3rd Item: Code version (passive state, no action) d) 4th Item: Display state (on or off) This state is

denoted by a “S0” or a “S1”. Note: Does not turn off display o error codes.

e) 5th Item: Temperature state (Fahrenheit or

Celsius) This state is denoted by a “F” or a “C”.

f) 6th Item:Error Code histor y (view and clean) This

state allows the ability to view and clean the last three error codes encountered by the unit. If no errors occurred since last cleaned, this item is skipped and display returns to 1st item.

33.Lower left key to exit service menu. Notes: a. When an attempt is made to scroll the menu

while a function state is active, the active function state will automatically deactivate. This is to prevent the service technician from simultaneously activating the Refrigeration state and the Defrost state. Only one function may be active at any give time.

b. If no operation is performed within 45 minutes

while in the service menu, the system will automatically exit the service menu and return to normal refrigeration.

c.If the Defrost state is activated and left

unattended, the service menu will terminate the defrost as normal on evaporator temperature; otherwise, the defrost will terminate in 45 minutes.Upon defrost termination the system will automatically exit the service menu.

d. When the system exits the service menu, the

compressor will not start for 3 minutes.

e.The off cycle timer is not incorporated in the

service menu so the service technician has direct control of components.

SCIENTIFIC CONTROL AND ANNUNCIATOR PANELS

Cabinets for Scientific use may be equipped with a variety of optional control, alarm, and recorder devices. Each cabinet is shipped with the appropriate operators manual for the device installed on the cabinet. These operator manuals pertain to the set-up and basic operation of the control panel devices. For more comprehensive operation, repair, and maintenance information refer to the control panel service manual part number 51-0170-01.

8 HANDLING & INSTALLATION

HANDLING & INSTALLATION 9

QUAD DOOR HARDENING FREEZER

These cabinets were developed for low temperature storage (-30°F, -34°C + -40°F, -40°C). Defrost timer to be set 8 A.M., 4 P.M. and 12 P.M. Failsafe to be set at 30 minutes. Defrost will terminate by time only. The temperature control is located on the side of the electrical box. It can be adjusted without removing the upper control panel.

Ways to Minimize Frost & Ice Buildup Inside Hardening Freezers

Moisture-laden air migrates into the freezer during door opening and under normal operation, will be absorbed or removed by the refrigeration system and the defrost cycle.

The lover the temperature is in the freezer, the more rapidly frost and ice will accumulate. Opening doors frequently will also increase frost and ice buildup.

There are several things that you can do to reduce the accumulation of lice/frost on the interior parts of the cabinet and product. If this icing condition exists, the following items should be checked and corrected as required.

1. Minimize door openings by using the hardening freezer to harden the product, then move to a storage or display freezer that is less critical in temperature.

2.Keep the length of time door is open to a minimum.

3. Avoid opening all doors at once. Open only one of the outer doors plus only one of the inner doors (top or bottom) at one time on the hardening freezer.

4. Check the door gaskets for possible air leaks. Look for frost patches around the door openings of both the inner and outer doors. Make sure that gasket seals all around door opening; any leak will allow moist outside air to enter the cabinet.

5. Make sure the inner door latches work properly.

6.These freezers are designed to operate in a range of -15° to -40°F. Keep freezer thermostat set as high as possible to minimize frost buildup.

7. Look for moisture draining from the drain tube at the rear of the cabinet during and and after a defrost. This is normal and tells you that the unit is going through the proper defrost cycle.The drain must be properly trapped as shipped from the factory.

8. Evaporator defrost heater and the drain tube heater must work properly and have proper voltage supply.The one- and two-door freezers are rated at 115 volts.

9. The defrost heater and drain heater must be in their proper locations.

10. Ensure that the freezer is sealed where tubing enters upper lefthand corner of the cabinet.

11.The freezer should not be located where excessiv e drafts from doors or air conditioning vents can blow into it.

GROUNDING INSTRUCTIONS

This appliance is equipped with a three-prong (grounding) plug for your protection against shock hazards. The appliance should be plugged directly into a properly grounded three-prong receptacle.

Where a two-prong wall receptacle is encountered, it must be replaced with a properly grounded three prong receptacle in accordance with the National Electrical Code and local codes and ordinances.The work must be done by a licensed electrician.

WARNING

Consult a licensed electrician if you have any doubt about the grounding of your wall receptacle. Only a licensed electrician can determine the polarization of your wall receptacle. Only a properly installed three-pronged wall receptacle assures the proper polarization with the equipment plug.

NOTE:

These cabinets come from the factory with defrosts set from 8 a.m., 4 p.m., and 12 a.m. on a 24-hour cycle. Do not adjust the failsafe time since the freezers terminate on time only.

IMPORTANT

Do not under any circumstances cut or remove the

round grounding prong from the equipment plug.

SERIAL RATING PLATES

Serial Number Rating Plates on each vertical cabinet are located on the inside upper left hand corner. This plate contains all technical data necessary to the operation of the cabinet. Warranty administration is based on the serial number as printed on the rating plate.

10 DIMENSIONAL DRAWINGS - Top Mount (Glass Door) Models

Low Temperature, Top Mount, Glass Pull Door Freezers Dimensional Drawings

83w

GLASS

TYP.

474

INTERIOR

26 w

GLASS

21 d

GLASS

TYP.

83w

21 d

GLASS

TYP.

GLASS

TYP.

734

INTERIOR

364

34w

60d

INTERIOR

29d

INTERIOR

SIDE VIEW

Low Temperature, Top Mount, Glass Pull Door Freezers Specifications

SPECIFICATIONS - Top Mount Models 11

Specification 1-Door 2-Door 3-Door

Compressor Mount Top Top Top Temperature Range 0° to 20° (-18° to 29°C) 0° to 20° (-18° to 29°C) 0° to 20° (-18° to 29°C) Number of Doors 1 2 3 Door Construction Triple Pane Triple Pane Triple Pane Hinge Type Torsion Bar Torsion Bar Torsion Bar Number of Shelves 4 8 12 Shelf Type Cantilever Epoxy Coated Cantilever Epoxy Coated Cantilever Epoxy Coated Shelf Adj. 3/4" 3/4" 3/4" Insulation - CFC-Free Foam-in-Place Urethane Foam-in-Place Urethane Foam-in-Place Urethane Wall Thickness 2 3/8" 2 3/8" 2 3/8" Capacity - Gross 27.3 ft.

49.1 ft.

76.2 ft.

Capacity (1/2 gal. ice cream) 183 366 549 Shipping Weight (Approx.) 520 lbs. 760 lbs. 1010 lbs. Compressor Size. 3/4 hp 1 hp 1 1/2 hp Condenser Type Fin & Tube Forced Air Fin & Tube Forced Air Fin & Tube Forced Air Evaporator Type Fin & Tube Forced Air Fin & Tube Forced Air Fin & Tube Forced Air Refrigerant Type R-404A R-404A R-404A Refrigerant Control Expansion Valv e Expansion Valve Expansion Valv e Amp Rating 16 14.6 16 Electrical Specs. (V / Hz / Ph) 115 / 60 / 1 115 / 208-230 / 60 / 1 115 / 208-230 / 60 / 1 NSF NSF7 NSF7 NSF7 UL & CSA Listed Yes Yes Yes Interior Finish Baked Enamel, Covered Corners Baked Enamel, Covered Corners Baked Enamel, Covered

Corners

Exterior Finish Baked Enamel Baked Enamel Baked Enamel Sign Panel Optional Optional Optional Lighting

2 Insul. 1500 Milliamp Fluor.Lamps 3 Insul. 1500 Milliamp Fluor.Lamps 4 Insul. 1500 Milliamp Fluor.Lamps

12 DIMENSIONAL DRAWINGS - Bottom Mount (Glass Door) Models

Low Temperature, Bottom Mount, Glass Pull Door Freezers Dimensional Drawings

79 w

GLASS

264

INTERIOR

26 w

GLASS

21 d

GLASS

TYP.

GLASS

TYP.

474

INTERIOR

79w

21 d

GLASS

TYP.

GLASS

TYP.

734

INTERIOR

364

34w

INTERIOR

29d

INTERIOR

60d

SIDE VIEW

Low Temperature, Bottom Mount, Glass Pull Door Freezers Specifications

SPECIFICATIONS - Bottom Mount Models 13

Specification 1-Door 2-Door 3-Door

Compressor Mount Bottom Bottom Bottom Temperature Range 0° to -20° (-18° to -29°C) 0° to -20° (-18° to -29°C) 0° to -20° (-18° to -29°C) Number of Doors 1 2 3 Door Construction Triple Pane Triple Pane Triple Pane Hinge Type Torsion Bar Torsion Bar Torsion Bar Insulation - CFC-Free Foam-in-Place Urethane Foam-in-Place Urethane Foam-in-Place Urethane Wall Thickness 2 3/8" 2 3/8" 2 3/8" Capacity - Gross 27.3 ft.

49.1 ft.

76.2 ft.

Shipping Weight (Approx.) 516 lbs. 705 lbs. 984 lbs. Compressor Size 3/4 hp 1 hp 1 1/2 hp Condenser Type Fin & Tube Forced Air Fin & Tube Forced Air Fin & Tube Forced Air Evaporator Type Fin & Tube Forced Air Fin & Tube Forced Air Fin & Tube Forced Air Refrigerant Type R-404A R-404A R-404A Refrigerant Control Expansion Valv e Expansion Valve Expansion Valv e Amp Draw 14.6 13.0 16.0 Electrical Specs. (V / Hz / Ph) 115 / 60 / 1 208/230-60-1 208/230-60-1 NSF NSF7 NSF7 NSF7 UL & CSA Listed Yes Yes Yes Interior Finish Baked Enamel, Covered Corners Baked Enamel, Covered Corners Baked Enamel, Covered

Corners

Exterior Finish Baked Enamel Baked Enamel Baked Enamel Lighting

2 Insul. 1500 Milliamp Fluor.Lamps 3 Insul. 1500 Milliamp Fluor.Lamps 4 Insul. 1500 Milliamp Fluor.Lamps

Electrical Information 20 Amp Service Cord 20 Amp Service Cord 20 Amp Ser vice Cord

83w

GLASS

26 w

INTERIOR

21 d

GLASS

TYP.

GLASS

TYP.

474

INTERIOR

734

INTERIOR

21 d

GLASS

TYP.

29d

60d

INTERIOR

364

34w

INTERIOR

83w

SIDE VIEW

14 DIMENSIONAL DRAWINGS - Top Mount (Solid Door) Models

Low Temperature, Top Mount, Solid Pull Door Freezers Dimensional Drawings

Low Temperature, Top Mount, Solid Pull Door Freezers Specifications

SPECIFICATIONS - Bottom Mount Models 15

Specification 1-Door 2-Door 3-Door

Compressor Mount Top Top Top Temperature Range 0° to -20° (-18° to -29°C) 0° to -20° (-18° to -29°C) 0° to -20° (-18° to -29°C) Number of Doors 1 2 3 Door Construction Foam-In-Place Foam-In-Place Foam-In-Place Hinge Type Camlift / Spring Camlift / Spring Camlift / Spring Number of Shelves 4 x 1 bottom rack 8 x 2 bottom racks 12 x 3 bottom racks Shelf Type

Cantilever, Epoxy Coated Steel Wire Cantilever, Epoxy Coated Steel Wire Cantilever, Epoxy Coated Steel Wire Shelf Adj. 3/4" 3/4" 3/4" Insulation - CFC-Free Foam-in-Place Urethane Foam-in-Place Urethane Foam-in-Place Urethane Wall Thickness 2 3/8" 2 3/8" 2 3/8" Capacity - Gross 27.3 ft.

49.1 ft.

76.2 ft.

Shipping Weight (Approx.) 460 lbs. 660 lbs. 870 lbs. Compressor Size 1/2 hp 1/2 hp 3/4 hp Condenser Type Fin & Tube Forced Air Fin & Tube Forced Air Fin & Tube Forced Air Evaporator Type Fin & Tube Forced Air Fin & Tube Forced Air Fin & Tube Forced Air Refrigerant Type R-404A R-404A R-404A Refrigerant Control Expansion Valv e Expansion Valve Expansion Valv e Amp Draw (80° Running) 7.3 13.0 16.0 Electrical Specs. (V / Hz / Ph) 115 / 60 / 1 115/60/1 115/60/1 NSF NSF7 NSF7 NSF7 UL & CSA Listed Yes Yes Yes Interior Finish Baked Enamel, Covered Corners Baked Enamel, Covered Corners Baked Enamel, Covered

Corners

Electrical Information 15 Amp Service Cord 20 Amp Service Cord 20 Amp Ser vice Cord

Low Temperature, Top Mount, Solid Pull Door Hardening/Flash Freezers -Specifications

Specification 1-Door Quad Door Quad Door

Hardening Cabinet Hardening Cabinet Flash Freezer

Compressor Mount Top - Top Top Temperature Range 0° to -30° (-18° to -34°C) 0° to -30° (-18° to -34°C) 0° to -40° (-18° to -40°C) Number of Doors 1 Outer, 2 Inner 4 Outer 4 Outer Door Construction

Foam-In-Place on Outer Door

Foam-In-Place Foam-In-Place Hinge Type Camlift / Spring Camlift / Spring Camlift / Spring Number of Shelves 4 x 1 bottom rack 8 x 2 bottom racks 8 x 2 bottom racks Shelf Type

49.1 ft.

41.9 ft.

Shipping Weight (Approx.) 460 lbs. 660 lbs. 660 lbs. Compressor Size 1/2 hp 3/4 hp 11/2 hp Condenser Type Fin & Tube Forced Air Fin & Tube Forced Air Fin & Tube Forced Air Evaporator Type Fin & Tube Forced Air Fin & Tube Forced Air Fin & Tube Forced Air Refrigerant Type R-404A R-404A R-404A Refrigerant Control Expansion Valv e Expansion Valve Expansion Valv e Amp Draw (80° Running) 11.5 16.0 7.4 Electrical Specs. (V / Hz / Ph) 115 / 60 / 1 115/60/1 115/208-230/60/1 NSF NSF7 NSF7 NSF7 UL & CSA Listed Yes Yes Yes Interior Finish Baked Enamel, Covered Corners Baked Enamel, Covered Corners Baked Enamel, Covered

Corners

Exterior Finish Baked Enamel Baked Enamel Baked Enamel Electrical Information 20 Amp Service Cord 20 Amp Service Cord Conduit Connected

w/NEMA 5-20P Plug w/NEMA 5-20P Plug max. fuse size 15A

16 SPECIFICATIONS - Top Mount (Solid Door) Models

SECTION II

Electrical

and

Refrigeration

Compressor Model Number Copeland KAJB-007E-1AA Cabinet V olts 115/60/1 Expansion Device Sporlan Y1232-FBS 1/4 Charge Refrig.Type / Oz. / Grams 404A / 18 oz. / 510 grams

ELECTRICAL & REFRIGERATION SPECIFICATIONS Low Temp., Glass, 1-Door Freezers

SYSTEM COMPONENTS

AMBIENT 70°F / 21.1°C 80°F / 27°C 90°F / 32.5°C

Cavity Temp. (F/C) -6 / -21 -7 / -22 -9 / -23 Suction Pressure (PSIG / Kpa) 4.0 / 27.6 4.0 / 27.6 5.0 / 34 Discharge Pressure (PSIG / Kpa) 201/1385 233/1537 247/1703 Compressor Amps 9.9 9.6 9.8 Total Refrigeration Amps 13.7 13.4 13.6

SYSTEM PERFORMANCE

NOTE: REFER TO SERIAL DATA PLATE FOR REFRIGERANT TYPE & CHARGE.

Compressor Model Number Americold HP121-1-3087 Recommended Operating Temp. Range (F/C) 0°F to -20°F (-18°C to -29°C) Cabinet V olts 115/60/1 Expansion Device Sporlan Y1232-FBS 1/4 Charge Refrig.Type / Oz. / Grams R404A / 22 oz. / 623.7 grams

SYSTEM COMPONENTS

AMBIENT 70°F / 21.1°C 80°F / 27°C 90°F / 32.5°C

Cavity Temp. (F/C) -4 / -20 -5 / -21 -6 / -7 Suction Pressure (PSIG / Kpa) 12 8.7 12.5 Discharge Pressure (PSIG / Kpa) 194 210 220 Compressor Amps 2.9 2.7 2.8 Total Refrigeration Amps 5.4 5.4 5.4

SYSTEM PERFORMANCE

Low Temp., Solid, 1-Door Freezer

ELECTRICAL / REFRIGERATION SPECIFICATIONS 19

Compressor Model Number Copeland KALB-010E-CAV Recommended Operating Temp. Range (F/C) 0°F to -20°F (-18°C to -29°C) Cabinet V olts 115/208-230/60/1 Expansion Device Sporlan Y1232-FBS 1/4 Charge Refrig.Type / Oz. / Grams R404A / 29 oz. / 822.9 grams

ELECTRICAL & REFRIGERATION SPECIFICATIONS Low Temp., Glass, 2-Door Freezers

SYSTEM COMPONENTS

AMBIENT 70°F / 21.1°C 80°F / 27°C 90°F / 32.5°C

Cavity Temp. (F/C) -6 / -21 -6.5 / -21 -7.5 / -22 Suction Pressure (PSIG / Kpa) 6.7 / 46 7.0 / 48 7.6 / 52 Discharge Pressure (PSIG / Kpa) 213/1468 223/1537 250/1723 Compressor Amps 5.0 5.0 5.0 Total Refrigeration Amps 6.0 6.0 6.0

SYSTEM PERFORMANCE

NOTE: REFER TO SERIAL DATA PLATE FOR REFRIGERANT TYPE & CHARGE.

Compressor Model Number Copeland KAGB-005E-IAA Recommended Operating Temp. Range (F/C) 0°F to -20°F (-18°C to -29°C) Cabinet V olts 115/60/1 Expansion Device Sporlan Y1232-FBS 1/4 Charge Refrig.Type / Oz. / Grams R404A / 22 oz. / 623.7 grams

SYSTEM COMPONENTS

AMBIENT 70°F / 21.1°C 80°F / 27°C 90°F / 32.5°C

Cavity Temp. (F/C) -3 / -19 -4 / -20 -4.5 / -21 Suction Pressure (PSIG / Kpa) 9 / 62 9 / 62 9.5 / 65 Discharge Pressure (PSIG / Kpa) 222 / 1530 240 / 1654 265 / 1827 Compressor Amps 8.0 8.0 8.0 Total Refrigeration Amps 11.0 11.0 11.0

SYSTEM PERFORMANCE

Low Temp., Solid, 2-Door Freezer

20 ELECTRICAL / REFRIGERATION SPECIFICATIONS

Compressor Model Number Copeland KATB-015E-CAV Recommended Operating Temp. Range (F/C) 0°F to -20°F (-18°C to -29°C) Cabinet V olts 115/208-230/60/1 Expansion Device Sporlan Y1232-FBS 1/2 Charge Refrig.Type / Oz. / Grams R404A / 42 oz. / 1190.7 grams

ELECTRICAL & REFRIGERATION SPECIFICATIONS Low Temp., Glass, 3-Door Freezers

SYSTEM COMPONENTS

AMBIENT 70°F / 21.1°C 80°F / 27°C 90°F / 32.5°C

Cavity Temp. (F/C) -7 / -22 -8 / -22 -14 / -26 Suction Pressure (PSIG / Kpa) 5.0 / 34 6.5 / 44 8.5 / 58 Discharge Pressure (PSIG / Kpa) 191/1316 223/1606 262/1806 Compressor Amps 6.5 6.9 7.1 Total Refrigeration Amps 8.2 8.5 8.7

SYSTEM PERFORMANCE

NOTE: REFER TO SERIAL DATA PLATE FOR REFRIGERANT TYPE & CHARGE.

Compressor Model Number Copeland KAJB-007E-IAA Recommended Operating Temp. Range (F/C) 0°F to -20°F (-18°C to -29°C) Cabinet V olts 115/60/1 Expansion Device Sporlan Y1232-FBS 1/4 Charge Refrig.Type / Oz. / Grams 404A / 25 oz. / 708.75 grams

SYSTEM COMPONENTS

AMBIENT 70°F / 21.1°C 80°F / 27°C 90°F / 32.5°C

Cavity Temp. (F/C) -5 / -21 -6 / -21 -7 / -22 Suction Pressure (PSIG / Kpa) 7 / 48.3 7.5 / 51.7 8 / 55.2 Discharge Pressure (PSIG / Kpa) 205 / 1413 245 / 1689 270 / 1861 Compressor Amps 8.5 8.5 8.5 Total Refrigeration Amps 12.9 12.9 12.9

SYSTEM PERFORMANCE

Low Temp., Solid, 3-Door Freezer

ELECTRICAL / REFRIGERATION SPECIFICATIONS 21

Compressor Model Number Copeland KAGB-005E-IAA Recommended Operating Temp. Range (F/C) 0°F to -40°F (-18°C to -40°C) Cabinet V olts 115/60/1 Expansion Device Sporlan Y1232-FBS 1/4 Charge Refrig.Type / Oz. / Grams R404A / 22 oz. / 623.7 grams

ELECTRICAL & REFRIGERATION SPECIFICATIONS Hardening Cabinet, Solid, 1-Door Freezer

SYSTEM COMPONENTS

AMBIENT 70°F / 21.1°C 80°F / 27°C 90°F / 32.5°C

Cavity Temp. (F/C) -20 / -29 -20 / -29 -20 / -29 Suction Pressure (PSIG / Kpa) 4.0 / 27 6.0 / 41 6.6 / 46 Discharge Pressure (PSIG / Kpa) 180.0/1241 228/1572 234/1613 Compressor Amps 7.8 7.9 7.8 Total Refrigeration Amps 10.3 10.3 10.2

SYSTEM PERFORMANCE

Compressor Model Number Copeland KAJB-007E-IAA Recommended Operating Temp. Range (F/C) 0°F to -40°F (-18°C to -40°C) Cabinet V olts 115/60/1 Expansion Device Sporlan Y1232-FBS 1/4 Charge Refrig.Type / Oz. / Grams R404A / 22 oz. / 623.7 grams

ELECTRICAL & REFRIGERATION SPECIFICATIONS Hardening Cabinet, Solid, Quad Door Freezer

SYSTEM COMPONENTS

AMBIENT 70°F / 21.1°C 80°F / 27°C 90°F / 32.5°C

Cavity Temp. (F/C) -16 / -27 -18 / -28 -18 / -28 Suction Pressure (PSIG / Kpa) 2.6 / 18 3.6 / 25 4.0 / 28 Discharge Pressure (PSIG / Kpa) 200/1379 224/1544 245/1689 Compressor Amps 7.9 7.9 7.8 Total Refrigeration Amps 11.1 11.0 10.9

SYSTEM PERFORMANCE

NOTE: REFER TO SERIAL DATA PLATE FOR REFRIGERANT TYPE & CHARGE.

22 ELECTRICAL / REFRIGERATION SPECIFICATIONS

Compressor Model Number KALB-015E-CAV Recommended Operating Temp. Range (F/C) 0°F to -40°F (-18°C to -40°C) Cabinet V olts 115/208-230/60/1 Expansion Device Sporlan Y1232-FBS 1/2 Charge Refrig.Type / Oz. / Grams R404A / 29 oz. / 822.15 grams

ELECTRICAL & REFRIGERATION SPECIFICATIONS Flash Freezer, Solid, Quad Door

SYSTEM COMPONENTS

AMBIENT 70°F / 21.1°C 80°F / 27°C 90°F / 32.5°C

Cavity Temp. (F/C) -19 -19 -20 Suction Pressure (PSIG / Kpa) 3.3 3.7 4.3 Discharge Pressure (PSIG / Kpa) 193 219 252 Compressor Amps 5.7 5.6 5.5 Total Refrigeration Amps 9.5 9.5 5.5

SYSTEM PERFORMANCE

ELECTRICAL / REFRIGERATION SPECIFICATIONS 23

Door Heater 94.4 watts

115V 140 ohms 168 ohms 168 ohms 230V 477 ohms 585 ohms 585 ohms

110.9 watts

Perimeter Heater 63.8 watts

115V 207 ohms 230 ohms 230 ohms 230V 746 ohms 782 ohms 782 ohms

70.9 watts

Condensate Heater 174 watts 174 watts 174 watts

115V 76 ohms 76 ohms 76 ohms

230 V 257 ohms 257 ohms 257 ohms

205.8 watts

Drain Heater 6.0 watts 6.0 watts 6.0 watts

115V 2204 ohms 2204 ohms 2204 ohms 230V 7704 ohms 7704 ohms 7704 ohms

6.8 watts

Defrost Heater Solid Glass Solid Glass Solid Glass

16.5 ohms 16.5 ohms 16.5 ohms 46 ohms 10.6 ohms 30 ohms 800 watts 800 watts 800 watts 1250 watts 1250 watts 1927 watts

115 volts 115 volts 115 volts 240 volts 115 volts 240 volts

Lamp F60T10CWHO F60T10CWHO F6010CWHO

Evap. Fan Delay (Non-Pulse) Close 32° / Open 52° Close 32° / Open 52° Close 32° / Open 52°

Defrost Termination(Non-Pulse) Close 30° / Open 60° Close 30° / Open 60° Close 30° / Open 60°

Defrost Time/Temp

Failsafe 40 min. 40 min 40 min.

Hardening Cabinets

Defrost Time/Time 30 min. 30 min. N/A

Hardening Cabinet 73.5 watts

Center Mullion

Vertical N/A N/A

115V 179 ohms 230V 719 ohms

Hardening Cabinet 8.75 watts

Mullion 1511 ohms

115V 1548 volts N/A 230V 6194 ohms

CPR V alv e

4&6 10PSIG 10PSIG 10PSIG

GENERAL LOW TEMPERATURE FREEZER COMPONENT SPECIFICATIONS

1-DOOR 2-DOOR 3-DOOR

24 ELECTRICAL / REFRIGERATION SPECIFICATIONS

WIRING DIAGRAM REFERENCE

WIRING DIAGRAM REFERENCE 25

CONTROL

PANEL

LIGHTS,

FLUORESCENT SOLENOID

INCAND LIGHT,

RACEWAY EVAPORATOR

ANTI-SWEAT

HTR, RACEWAY

WIRING DIAGRAM REFERENCE

DOOR SWITCH,

RACEWAY

BT30CW-EXPR 26-0983-00

BT30CWFMS-2 00-0430-00

BT30FS-4 00-0051-00 00-0071-00 00-0062-00 00-0061-03 00-0061-04 00-0061-05 00-0050-02 00-0058-01

BT50FS-4 00-0051-00 00-0072-00 00-0062-00 00-0061-02 00-0061-04 00-0061-05 00-0050-02 00-0058-01

BT80FS-4 00-0051-00 00-0068-00 00-0062-00 00-0061-03 00-0061-04 00-0061-05 00-0050-02 00-0058-01

BTL30FS-4 00-0051-00 00-0072-00 00-0062-00 00-0061-04 00-0061-05 00-0050-02 00-0058-01

BTQ50FSHD-4 00-0054-00 00-0069-00 00-0063-00 00-0061-04 00-0050-02 00-0058-01

ST30FSBB-4 00-0051-00 00-0071-00 00-0062-00 00-0061-03 00-0061-04 00-0061-05 00-0050-02 00-0017-11

STL30FSBB-4 00-0051-00 00-0072-00 00-0062-00 00-0061-04 00-0061-05 00-0050-02 00-0017-11

T30HSP-4 00-0051-00 00-0072-00 00-0062-00 00-0061-04 00-0050-02

T30LGP-5 00-0107-00 00-0068-00 00-0109-00 00-0061-01 00-0061-04 00-0050-05 00-0067-01

T30LGPE-5 00-0107-00 00-0069-00 00-0112-00 00-0061-01 00-0061-04 00-0050-05 00-0067-04

T30LGPRBR-5 00-0107-00 00-0109-00 00-0061-01 00-0061-04 00-0050-05 00-0067-01 00-0060-00

T30LSP-5 00-0107-00 00-0071-00 00-0109-00 00-0061-01 00-0061-04 00-0050-05

T30LSPHD-5 00-0107-00 00-0072-00 00-0109-00 00-0061-01 00-0061-04 00-0050-05

T50HSQHP-4 00-0054-00 00-0069-00 00-0063-00 00-0061-04 00-0050-02

T50HSQL-4 00-0051-00 00-0072-00 00-0062-00 00-0061-04 00-0050-02

T50LGP-5 00-0108-00 00-0113-00 00-0110-00 00-0061-02 00-0061-04 00-0050-05 00-0067-02

T50LGPE-5 00-0107-00 00-0069-00 00-0112-00 00-0061-02 00-0061-04 00-0050-05 00-0067-04

T50LGPHD-5 00-0108-00 00-0113-00 00-0110-00 00-0061-02 00-0061-04 00-0050-05 00-0067-02

T50LGPR-5 00-0108-00 00-0110-00 00-0061-02 00-0061-04 00-0050-05 00-0067-02 00-0060-00

T50LSP-5 00-0107-00 00-0072-00 00-0109-00 00-0061-02 00-0061-04 00-0050-05

T50LSPR-5 00-0107-00 00-0109-00 00-0061-02 00-0061-04 00-0050-05 00-0060-00

T80LGP-5 00-0108-00 00-0113-00 00-0110-00 00-0061-03 00-0061-04 00-0050-05 00-0067-03

T80LGPE-5 00-0107-00 00-0069-00 00-0112-00 00-0061-03 00-0061-04 00-0050-05 00-0067-04

T80LGPR-5 00-0108-00 00-0110-00 00-0061-03 00-0061-04 00-0050-05 00-0067-03 00-0060-00

T80LSP-5 00-0107-00 00-0068-00 00-0109-00 00-0061-03 00-0061-04 00-0050-05

ULG30BF-5 00-0107-00 00-0069-00 00-0112-00 00-0061-02 00-0061-04 00-0050-05 00-0067-04

ULG30BS-5 00-0107-00 00-0068-00 00-0109-00 00-0061-01 00-0061-04 00-0050-05 00-0067-01

ULG50BC-5 00-0108-00 00-0113-00 00-0110-00 00-0061-02 00-0061-04 00-0050-05 00-0067-02

ULG50BF-5 00-0107-00 00-0069-00 00-0112-00 00-0061-01 00-0061-04 00-0050-05 00-0067-04

ULG50RD-5 00-0108-00 00-0110-00 00-0061-02 00-0061-04 00-0050-05 00-0067-02 00-0060-00

ULG80BC-5 00-0108-00 00-0113-00 00-0110-00 00-0061-03 00-0061-04 00-0050-05 00-0067-03

ULG80BF-5 00-0107-00 00-0069-00 00-0112-00 00-0061-03 00-0061-04 00-0050-05 00-0067-04

ULG80RD-5 00-0108-00 00-0110-00 00-0061-03 00-0061-04 00-0050-05 00-0067-03 00-0060-00

MODELS LADDER COMPRESSOR ELECT BOX

ULS30US-5 00-0107-00 00-0109-00 00-0061-03 00-0061-04 00-0050-05 00-0060-00

LADDER DIAGRAM - 00-0051-00

26 WIRING DIAGRAM

LADDER DIAGRAM - 00-0054-00

WIRING DIAGRAM 27

LADDER DIAGRAM - 00-0107-00

28 WIRING DIAGRAM

LADDER DIAGRAM - 00-0108-00

WIRING DIAGRAM 29

COMPRESSOR WIRING DIAGRAM - 00-0068-00

30 WIRING DIAGRAM

COMPRESSOR WIRING DIAGRAM - 00-0069-00

WIRING DIAGRAM 31

COMPRESSOR WIRING DIAGRAM - 00-0071-00

32 WIRING DIAGRAM

COMPRESSOR WIRING DIAGRAM - 00-0072-00

WIRING DIAGRAM 33

COMPRESSOR WIRING DIAGRAM - 00-0113-00

34 WIRING DIAGRAM

ELECTRICAL BOX WIRING DIAGRAM - 00-0062-00

WIRING DIAGRAM 35

ELECTRICAL BOX WIRING DIAGRAM - 00-0063-00

36 WIRING DIAGRAM

ELECTRICAL BOX WIRING DIAGRAM - 00-0109-00

WIRING DIAGRAM 37

ELECTRICAL BOX WIRING DIAGRAM - 00-0110-00

38 WIRING DIAGRAM

ELECTRICAL BOX WIRING DIAGRAM - 00-0112-00

WIRING DIAGRAM 39

RACEWAY WIRING DIAGRAM - 00-0061-*

40 WIRING DIAGRAM

EVAPORATOR WIRING DIAGRAM - 00-0050-*

WIRING DIAGRAM 41

FLUORESCENT LIGHT WIRING DIAGRAM - 00-0067-*

42 WIRING DIAGRAM

SOLENOID WIRING DIAGRAM - 00-0060-*

WIRING DIAGRAM 43

CONTROL PANEL WIRING DIAGRAM - 00-0071-11

44 WIRING DIAGRAM

CONTROL PANEL WIRING DIAGRAM - 00-0058-*

WIRING DIAGRAM 45

SECTION III

Maintenance

and

Repair

The manufacturer requires compliance to all CGC reclamation laws by service companies engaging in system processing.

WARNING

To avoid the possibility of an electrical shock,turn OFF the thermostat and unplug the power cord of the cabinet before cleaning or touching electrical connections or parts.

MAINTENANCE & REPAIR

PRE-SERVICE CHECK LIST

You may avoid the cost and inconvenience of an unnecessary product call by first reviewing this check list of the most frequently encountered situations that are not the result of defective workmanship or materials.

COMPRESSOR RUNS TOO MUCH

1. A refrigerated cabinet automatically compensates for product loading by running longer and more often. Before calling for service, check running time for at least one hour the first thing in the morning (before store traffic starts).

2. Be sure the doors seal. A faulty gasket seal will cause increased running time.

3. Check the room temperature.The warmer the room, the more the compressor will run.

4. Check the condenser to be sure the face is clean.Dirt and lint will raise pressures and increase running time.Use a brush or vacuum to clean the condenser.

5. Be sure condenser fan operates.

6. Check to see that evaporator fans are running.

7. If product is too hard (cold), try setting the Temperature Control (thermostat) warmer. This will result in warmer cabinet temperature and reduced running time.

8. Check insufficient ventilation to condenser.

CABINET DOES NOT OPERATE

1. Be sure cabinet is plugged in.

2. Check that breakers or fuses are good and all switches in the supply line are ON.

3. Be sure that cabinet Master Power Supply Switch is ON.

4. If you are in an area with voltage problems, try shutting off all non-essential electrical equipment.

LIGHT IS OFF

1. If the cabinet is operating, be sure the lamp is properly seated in sockets.

2. If cabinet is not running, check that Master Power Supply Switch and Light Switch are ON, fuses are okay, no switch in the supply is OFF, and that the cabinet is plugged in.

CUSTOMER COMPLAINT ON STORED PRODUCT

1. Check cleaning solutions used inside cabinet.

2. Check cleaning solutions, paint, or other contaminants used in store maintenance.

3. Sometimes the ingredients used in some products or containers will contaminate other products.

4. Be sure to follow a weekly schedule for cleaning cabinet interior.

SERVICE

In the event of a malfunction, damage to the cabinet, or if the cabinet requires service beyond the items in the “Pre-Service Checklist,” contact your local service company or the dealer from whom the cabinet was purchased.

POWER FAILURE

Do not open the cabinet doors unnecessarily if power is cut off due to electrical failure.The cabinet will start up if the power supply returns, but will require sufficient time to reach maximum cold storage performance.

CABINET FAILURE

1. If the cabinet has stopped operating, check that the cabinet is securely plugged in and turned on.Contact a licensed electrician to locate and correct any power supply problems.

2. Do not open the cabinet doors unnecessarily.

3. Provisions for other storage of the product may be required to prevent spoilage.

If you call for service, describe your problem and giv e the following information to the service representative:

Cabinet Model No. ____________________________ Part No. ____________________________________ Serial No. __________________________________

(These numbers are located on a silver serial number rating plate in the upper left side of the cabinet interior.)

MAINTENANCE & REPAIR 49

TOOLS:

To provide full ser vice diagnostics and repairs on these cabinets, the following tools are needed:

A Multimeter An Electronic Leak Detector An Electronic Micron Gauge A Vacuum Pump capable of pulling to 50 microns Four Hand Valves A Compound Gauge Set A cylinder of nitrogen with a regulator capable of 10 to

400 pounds. Standard refrigeration hand tools, e.g.: wrenches, tube

cutter, swage and flare tools, wire strippers, wire crimp. ers, wire cutters, slot and phillips head screwdrivers.

PRODUCT HISTORY

The first rule in servicing a refrigeration system is to determine if the problem is an electrical or mechanical failure.

First, try to obtain the product’s history of operation from the customer.This will help identify the source of the problem.

Good facts from the cabinet user can help identify whether the problem is electrical, within the refrigeration system, or a “misapplication by the user”. Get the history of operation and failure by asking these questions:

1) Were there any brown-outs or power outages that they are aware of?

2) Is the cabinet on a dedicated circuit?

3) Has any other equipment in this area had operational problems?

4) When was the last time the cabinet’s operation was confirmed as working properly?

5) When was a problem noticed?

6) How long has the equipment run without this problem? (Years? Weeks? Days? Hours?)

7) Was anything tried prior to your arrival?

The refrigeration system should only be entered if it is absolutely necessary. It is critical that a clean, uncontaminated system be maintained.

If a system is unable to reach the proper operating temperature, a test of the unit’s mechanical refrigeration components is required.

COMPRESSOR EFFICIENCY TEST

To test the compressor, place compound gauge on the compressor’s suction port.

While the compressor is running, close off the suction line so that only the port and valve are part of the compressor’s low side.

When the valve is closed and vacuum has started, time how long it takes to pull the compressor’s low side to its lowest possible vacuum.

Compressors used on these cabinets should be capable of pulling at least 20 to 22 inches of vacuum in less than 40 seconds.

Next, shut off the compressor and watch the gauge. A one or two inch rise in pressure is acceptable, since a small amount of freon may remain on the low side of the compressor, after which the reading should stabilize.

If the pressure continues to rise, the discharge reeds in the valve head ha ve f ailed, allowing high pressure gas to return to the compressor.

If the compressor pulls less than 20 inches, the suction reeds have failed.

If the compressor takes longer than 40 seconds to pull to its ultimate low vacuum, one or both cylinders are not functioning as they should. Any reading less than these will require replacement of the compressor.

ENTERING THE SYSTEM

Entering the system should only be done as a last resort. Extreme care must be used no matter what the reason for entering the system. Of course there are times when it cannot be avoided, such as component or compressor replacement, or a leak within the system.

The system must also be entered any time you need to obtain the operating pressures. Again, use extreme caution to avoid any possible contamination.

Cabinets that use hermetic compressors typically do not have valve ports, so therefore process stubs for both suction and discharge sides of the system were added.

Line taps should only be used to obtain pressure readings, and not for the reprocessing of the system. The opening of a line tap is too restrictive for the pressure of vacuum procedures.

On a hermetic compressor system, once you have determined that reprocessing a system is required, recover refrigerant and remove the line taps.

50 MAINTENANCE & REPAIR

Install hand valves at the process stub ends. Hand valves will be less restrictive to flow because of a larger opening. They will also be easier to use during repair procedures.

EVACUATION

Once the system has been cleaned and components have been replaced, you are ready to initiate the final servicing procedures necessary to achieve proper cabinet operation. Drier should be replaced prior to system processing.

Pull an evacuation to approximately 50 microns.

CHARGING

You should use a charging cylinder to measure in the correct amount of refrigerant.The charging methods are:

1. Add the refr igerant to the system until you reach a

balanced pressure. This will give you an approximate static charge.

2. Weigh in the refrigerant using a scale calibrated in ounces.

The cabinet’s operation is now ready to be tested. A final check of the refrigeration lines should be made before running the cabinet.

Be sure the refrigeration lines are not kinked or rubbing against each other.

Also check that the door seals properly. An air leak will affect proper operation, and the cabinet’s ability to reach its coldest temperature.

Run the cabinet at both 100% run, and a cycling temperature for at least 24 hours. If the temperature and pressures are correct, the system can be considered repaired.

Hermetic systems should now have their process stubs pinched off, hand valves removed and the ends brazed shut.

MAINTENANCE & REPAIR 51

COMPRESSOR INSTALLATION & MAINTENANCE

TO CHANGE THE COMPRESSOR:

1. Disconnect the power supply to the cabinet.

2. Disconnect the power supply leads at the compressor.

3. Disconnect wires to relay and capacitors.

4. Remove relay and starting capacitor and install on new compressor.

5. Remove defective compressor from condensing unit base.

6. Set new compressor in place.

7. Reconnect relay and capacitor wires.

8. Reconnect power supply lead.

9. Leak test, evacuate, and weigh in charge.

CHANGING DRIER

If flare connected, make sure flares and faces of fittings on new drier are clean and in good condition before installing new drier.

If sweat connected, clean tubing close to original drier before cutting tubing in clean area. Check that ends of the replacement drier are clean, then make brazed connection using as little heat as possible.

Cut tubing only with tube cutters, not hacksaws, to avoid metal filings from entering the system. Driers must be replaced any time you enter the system, except when you are obtaining pressures.

SERVICE VALVES

The compressors on some cabinets have service valves for measuring suction and discharge pressures. Two types are used.The first type is connected directly to the compressor body or shell and back seats to connect gauges to the access port. The second is on the end of a process tube and requires a gauge or charging line with a depressing pin to open valve when the connection is made.

This type valve should be tightly capped except when making the

gauge connection.

TO CHECK FOR OPEN WINDINGS

Use a multimeter. Measure ohms between “C” and “R” and between “C” and “S. ”

If windings are O.K., multimeter will show a resistance reading between terminals.

If there is no reading, the compressor winding or windings are open and the compressor should be replaced.

TO CHECK FOR GROUNDED COMPRESSOR

Use multimeter.Touch probe from each terminal to an unpainted surface of compressor body. If there is no ground, there will be no change of the meter.

WARNING: Be Careful Not to Touch

Uninsulated Parts of the Meter Probes

A reading indicates a ground and the compressor should be replaced.

If there is voltage at the compressor terminals and the compressor tries, but does not run, check voltage at the compressor terminals while attempting to start the compressor.If the voltage at the compressor terminals is below 90% of the nameplate voltage, it is possible the motor may not have developed sufficient torque to start. Check to determine if:

A.Wire sizes are adequate. B. Electrical connections are tight. C. The circuit is not overloaded. D. The power supply is adequate.

A defective relay or capacitor may prevent the compressor starting.

TO CHECK OUT THE RELAY

1. Disconnect the cabinet from the power supply.

2. Remove the wires from the relay.

3. Touch probes to the contact terminals. Meter should show infinity if closed.

4. Touch probes to the terminals of coil. The meter should show a resistance reading.

If items 3 and 4 are O.K., the relay is good. If items 3 and 4 are not as indicated, change the relay.

CAUTION:

52 MAINTENANCE & REPAIR

TO CHECK CAPACITORS

1. Disconnect the cabinet from the power supply.

2. Make sure the capacitors are discharged before touching terminal. (Shunt across the terminal of capacitor with a heavy insulated wire.)

3. Remove the wires from the capacitors.

4. Any capacitor found to be bulging, leaking, or damaged should be replaced.

5. Use a multimeter to check the run and start capacitors for shorts or open circuits.

With a good capacitor, the indicator should first move to a reading and then gradually increase to infinity.

If there is no reading change, an open circuit is indicated.

If the multimeter remains on a low resistance reading, a short circuit is indicated.

On run capacitor, touch probes to metal case and each terminal. If meter show any reading, a ground is indicated. All defective capacitors should be replaced.

MAINTENANCE & REPAIR 53

EVAPORATOR DRAIN PAN REPLACEMENT

54 MAINTENANCE & REPAIR

The evaporator drain pan is located in the upper interior of the cabinet. It pivots down for ease of accessibility.

1. Disconnect the power of the cabinet.

2. Release R.H. and L.H. quarter-turn fasteners.

3. Drop the front of the pan and swing it down.

4. Disconnect the ground wire.

5. Raise the pan, unhook from back.

6. Remove the drain line from the drain hole.

7. Remove the pan from the cabinet.

8. Reconnect the power to the cabinet.

CONDENSER AND ELECTRICAL BOX ACCESS

MAINTENANCE & REPAIR 55

The electrical box can be accessed by removing the front grill or control panel.There are tabs on each end of control panel top.Remove lock down screws and lift up on panel. By lifting panel, the key slots disengage from the shoulder bushings located on each end of the panel.

TOP MOUNT MODELS

BOTTOM MOUNT MODELS

THERMOSTAT REPLACEMENT Electro-Mechanical Control Systems

1. Remove front grill.

2. Snap off thermostat outer cover.

3. Remove conduit unit & bushing.

1, 2, 3- DOOR ELECTRICAL BOX Typical Arrangement of Components

56 MAINTENANCE & REPAIR

1. Handy Box (Hardware connection point)

2. Defrost Timer / Pulse Control Board

3. Contactor

4. Main Terminal Board

5. Light Ballast (Located at rear)

6. 9 Pin Quick Connect Plug-in

START KIT ELECTRICAL BOX

Run Capacitor not shown.

EVAPORATOR FAN MOTOR REPLACEMENT (Rear Fan)

1. Disconnect the power to the cabinet and locate the evaporator fan in the cabinet interior behind the evaporator coil.

2. Remove the fan guard by rotating it counter clockwise to the position shown.

3. Remove the fan and bracket assembly by rotating it to the position shown.

4. Lower the fan assembly and remove the two scre ws that fasten the motor to the bracket.

Note: To assist the removal of the guard and bracket, press on the detent bumps to guide them out of the obround holes.

MAINTENANCE & REPAIR 57

FAN DELAY & DEFROST TERMINATION-PULSE SENSORS Electro-Mechanical System Control

58 MAINTENANCE & REPAIR

FAN DELAY: FIG 1

1. Disconnect power supply from cabinet.

2.Turn two (2) quarter tur n fasteners located at each

end of the evaporator drain pan.

3. Remove the thermodisc and contact bracket from

the coil. Remove two (2) screws that hold the delay to the bracket.

4. Disconnect the delay at the wiring bundle.

5. Replace with correct par t in reverse order

Evap.Fan Delay: Close 32° / Open 52°

DEFROST TERMINATION CONTROL: FIG. 2

1. CAUTION: Disconnect the power supply from the cabinet.

2.Turn two (2) quarter tur n fasteners located at each

end of the evaporator drain pan.

3. Remove the thermodisc retainer clip.

4. Cut the wire ties that hold the wire to the

copper tubing.

5. Remove the thermodisc and contact bracket to

access the wiring bundle.

6. Install with the correct part. Retie at the wiring

bundle and resecure the disc to the suction line.

Defrost Ter mination: Close 30° / Open 60°

SENSOR HARNESS

1. Disconnect power supply from cabinet.

2. Cut plastic wire ties securing the insulation on the #2 sensor and note the sensor position.

3. Note the position of the #1 sensor and cut the remaining plastic wire ties.

4. Unplug the harness from the back wall of the cabinet and remove the harness.

5. Replace with the new harness making sure the plug is fully engaged in the receptacle at the back of the cabinet and the sensors are mounted in the same locations and positions as the previous harness.

6. Bundle the excess wires and tie them securely in place.

DEFROST HEATER REPLACEMENT

MAINTENANCE & REPAIR 59

DISCONNECT THE POWER SUPPLY TO THE CABINET.

1.Turn quar ter tur n fasteners located on each end of the evaporator pan assembly.

2. Evaporator drain pan assembly will hinge down.

3.The defrost heater is located beneath the evaporator coil.

4. Carefully install the new part being careful to not damage the fin coil.

5. Reconnect the wiring and retie with plastic strips.

Hardening cabinet shown

2- & 3-DOOR CONDENSATE HEATER REPLACEMENT Bottom Mount Models

60 MAINTENANCE & REPAIR

1. Disconnect power supply from cabinet.

2. Disconnect the heater lead from the back of the electrical box.

3. Determine if the heater ther modisc is open. If not, remove heater from the bracket tabs.

4. Install with the correct part number, mount, and reconnect.

CAUTION! WIRES SHOULD BE WIRE-TIED UP AND AWAY FROM THE CONDENSATE PAN!

SHELVING / DRAWER Installation & Adjustment

To install shelves or drawers in a level position, insert the cantilever plate tabs into the rectangular holes in the desired position on the shelf standard. Lower the rear of the shelf so that the slots in the plate are completely down over the bottom of the holes.

NOTE: Supporting the front of the shelf with one hand while pushing down on the rear of the shelf will help ease installation.

To slope shelves, insert the cantilever plate tabs into the rectangular holes in the desired position on the shelf standard. Lift up on the rear of the shelf so that the top tab is locked behind the top of the rectangular hole. Hold the rear of the shelf up while lowering the front of the shelf until the bottom tab is inserted in the appropriate hole in the shelf standard.

MAINTENANCE & REPAIR 61

INSTRUCTIONS - SOLID / QUAD DOOR REMOVAL Installation & Adjustment

62 MAINTENANCE & REPAIR

No File

CAM HINGE DOORS – OPERATION & REMOVAL (Solid Door Cabinets Only)

MAINTENANCE & REPAIR 63

HOLD-OPEN FEATURE

The doors can be opened up to a 95° angle and will maintain that position for loading or unloading the storage compartment. Refer to Fig. 1.

Door Removal

The door can be removed by opening door 180°. Grasp door with one hand. Remove two screws located in top bracket of door opening. Door can be lifted up and away from the BTM Bracket pin.

NOTE: Door closer cartridge is spring loaded.

ALIGNING THE DOORS

Proper alignment of the cabinet doors will eliminate hinge binding and provide correct gasket seal.

Top Bracket door opening slotted holes for up and down adjustment.

Spring Cartr idge located in door, can be removed by two screws Top of Door.

BTM Bracket Door opening slotted holes are for adjustment Left or Right

TORSION ROD HINGED DOORS - Maintenance & Removal

GLASS DOOR CABINETS ONLY MAINTENANCE – ALIGNING DOORS

Proper alignment of the cabinet doors will eliminate hinge binding and provide correct gasket seal.

1. Check the level of the cabinet and door alignment

by firmly closing each door.Observe the mo v ement of the other doors. They should open slightly, then close and seal.

2. The hinge wings fastened to the cabinet door have

slotted mounting holes for adjustment.

3. Additional adjustment can be made by adding

shims between the hinge wing and either the door or the cabinet face.

REMOVING DOORS:

1. Loosen lower hex nut (Nut “A”) and release tension

on the torsion rod.

2. Remove the hitch pin from the upper hinge pin.

3. Hold the door steady and unscrew the pin at top of

the door.The door can now be lifted out of the lo wer hinge- bracket

REINSTALLING DOORS:

1. Set lower square shaft on door in lower hinge

bracket

2. Insert top hinge pin and tighten to 12 ft./lbs.torque.

NOTE:Washer must be in place so top pin will not loosen and disconnect from door hinge.

3. Insert hitch pin through hole in upper hinge pin.

4. Run Nut “A” up snug. (You may have to loosen Nut

“A” as you tighten tension as noted in Step 5.)

5. Set tension on door by tur ning square shaft in the

direction the door closes. Set tension so that the door will self close when opened approximately 1". (Do not overtighten so door will slam.) Tighten Nut “A” so tension can be maintained.

NUT "A" SQUARE SHAFT

HINGE PIN

WASHER

HITCH PIN

TORQUE ROD REMOVAL

1. Loosen nut “A” to remove door.

2. Attach vice grips to shaft.

3. Drive torque rod out of door.

4. Install new rod into keyway slot in door frame.

5. Reattach nut after installing door.

6. Turn shaft clockwise then lock nut “A”.

7. Add torque until door will close by itself.

64 MAINTENANCE & REPAIR

DOOR GASKET REPLACEMENT

The gasket is replaceable on glass or solid door models. A retainer is molded into the door frame.The door gasket is then tapped into the retainer and secured for airtight door seal.

1. Remove door from cabinet.

2. Lay door front down on a flat, firm, nonscratch surface.

3. Pr y up one corner of gasket with a putty knife or screwdriver. Pull gasket from perimeter of door retainer.Clean new gasket and straighten to insure proper fit.

4. Pull gasket from perimeter of door retainer.

5. Clean new gasket and straighten to insure proper fit.

6. Place gasket over retainer in door frame.

7. Using a rubber mallet, tap the gasket into the retainer. (NOTE: Gasket can be soaked in warm water to make pliable.)

8. Place door back onto cabinet.

MAINTENANCE & REPAIR 65

CASTER INSTALLATION INSTRUCTIONS

66 MAINTENANCE & REPAIR

METERING DEVICE REPLACEMENT

The refrigerant metering device in this cabinet is expansion valv e.It is a Sporlan FBV 1/4-C.It is located on the face of the ev apor ator coil behind the drain pan. (Super heat setting 6° to 8° valve is field adjustable.)

1. Disconnect power to the cabinet.

2. Remove the evaporator drain pan.

3. Isolate the valve from the remainder of the system.

4. Remove the valve and replace with exact part

number new valve.

5. Reposition the sensing bulb in original location.

6. Replace the drain pan.

7. Reconnect power to the cabinet.

(Non-adjustable Shown)

MAINTENANCE & REPAIR 67

CONDENSER FAN MOTOR REPLACEMENT

68 MAINTENANCE & REPAIR

The condenser fan motor is located directly behind the condenser coil in the machinery compar tment.

1. Disconnect the power to the cabinet.

2. Remove the front top panel.

3. Remove the metal screen fan guard.

4. Disconnect the wire at the junction box.

5. Remove the motor from the fan motor

mounting bracket.

6. Replace with correct motor.

7. Reconnect the wires at the junction box.

8. Replace the fan guard screen.

9. Replace the front top panel.

10. Reconnect the power to the cabinet.

MASTER POWER SUPPLY SWITCH REPLACEMENT

1. Disconnect power to the cabinet.

2. Remove the front panel.

3. Remove the screws holding the electrical

box cover.

4. Detach switch leads.

5. Remove the lock nut on exterior of the switch.

6. Replace with new switch.

7. Reattach the electrical leads.

8. Replace the cover with the screws.

9. Replace the front panel.

10. Reconnect the power to the cabinet.

The master power supply switch on the top mount cabinets is located behind the front top panel, on the lefthand side of the electrical supply box.

On the bottom mount cabinets, the master power supply switch is located behind the lower front panel on the electrical box assembly.

On scientific cabinets, the power key switch is located on the front panel.

MAINTENANCE & REPAIR 69

LIGHT SWITCH REPLACEMENT

On commercial models, the light switch is located inside the cabinet. It is on the light channel assembly.

On scientific cabinets, the light switch is located on the front control panel.

1. Disconnect the power to the cabinet.

2. Remove the plastic lamp shield. Remove the lamp

bracket from the cabinet.

3. Remove the lock nut on the switch body.

4. Disconnect wire leads.

5. Connect new switch.

6. Replace the lock nut.

7. Replace the lamp shield.

8. Reconnect the power to the cabinet.

70 MAINTENANCE & REPAIR

The ballast is located in the machinery compar tment (A), attached to the back of the electrical control box (B).

1. Disconnect the power to the cabinet.

2. Remove the front panel.

3. Remove the cover panel on the electrical wiring box.

4. Disconnect the leads to the ballast.

5. Replace the ballast with correct par t.

6. Replace the electrical wiring box cover panel.

7. Replace the front panel.

8. Reconnect the power to the cabinet.

BALLAST REPLACEMENT

Figure 1

Figure 2

MAINTENANCE & REPAIR 71

FLUORESCENT BULB REPLACEMENT

1. Remove the plastic outer lamp shield.

2. Grasp the bulb.

3. Raise the bulb up. Pull out of the socket.

4. Remove the lamp shields and the end caps.

5. Place a new b ulb in the shield.Attach the end caps.

6. Inser t the bulb into the cabinet, push up and snap

into place.

72 MAINTENANCE & REPAIR

DISCONNECT POWER SUPPLY TO CABINET!

Center mullion heaters not foamed in place on later models. The heater can be accessed from inside the cabinet.

Remove lamp (if applicable). Spread inner plastic extrusion apart. Working down

one side and then the other. Slide a putty knife about 3/4" between mullion back panel & the plastic extrusion. Carefully pry back panel from the mullion. This will expose the foam insulation. The mullion extrusion will have to be opened up also in order to get foam insulation out.The heater is taped in place.The heater lead wires exit the mullion and are plugged into a terminal board located just above the door opening in a raceway. Install the new heater in the same manner and reassemble in rev erse order (see photos).

CENTER MULLION HEATER REMOVAL

MAINTENANCE & REPAIR 73

PERIMETER HEATER REMOVAL

1. Disconnect power to cabinet.

2. Allow trim to warm up.

3. Insert the edge of the putty knife 1/16" under the

outer flange of the trim breaker.

4. Rotate handle down to approx. 45°.

5. Bump the putty knife handle until breaker trim releases (see figure 1).

6. Remove all trim in the same manner.

7. Locate perimeter heater exit points.

8. Pull defective heater from groove provided. 9 The perimeter heater is plugged into a terminal

board located in the upper of lower raceway depending on the application.

10. Install new heater and reseal wire exit points.

11. Replace trim and seal with a silastic compound.

74 MAINTENANCE & REPAIR

1. Disconnect the power supply to the cabinet.

2. Access the raceway (top or bottom mount) by

removing the front panels.

3. Remove the raceway cover.

4. Squeeze the plastic retainer and pop out of

raceway.

5. Disconnect the wires form the switch. (Switch has

common normally open and normally close contacts).

Terminal board located in this raceway has a number of functions:

1. Power to center mullion heater;

2. Power to perimeter heaters;

3. Power to door receptacles.

CABINET RACEWAY - DOOR SWITCH REPLACEMENT

MAINTENANCE & REPAIR 75

TOUCH-UP PAINTING INSTRUCTIONS - SPRAY PAINT

TOUCH-UP PAINT

INSTRUCTIONS

1. Send to bare metal on affected area and its edges until the edges are smooth or feathered. This insures that you are spraying onto a clean area that has adhesion.

2. Use and automotive primer (lacquer) over the bare metal.

3. Scuff sand the primered are lightly.

4. Test spray can before using on cabinet surface. Apply in short, even strokes holding can 10" to 12" from surface, and moving rapidly during use. Apply paint in thin layers (4-5 layers minimum) with air drying time in between coats. Scuff sand very lightly between coats. This will remove uneven spots or roughness and will create a high gloss, smooth finish.

5. Use rubbing compound (preferred) or wax over the finished area after a few days of hardening/drying time.

76 THERMOSTAT BULB PLACEMENT

CLEANING & MAINTENANCE

CLEANING THE CABINET EXTERIOR

Wipe the exterior occasionally with a cloth dampened in mild detergent water; rinse, and wipe dry with a soft, dry cloth. Do not use abrasive or caustic cleaners

or scouring pads.

CLEANING THE CONDENSER - FIG. 1

1. Periodic cleaning of the condenser, located in the machinery compartment, can be easily accomplished by brushing the coils with a soft brush and/or using a vacuum cleaner with a brush attachment.

2. Be sure that dirt, dust, and collection of other debris do not build up to a point air circulation through the condenser is restricted.

3. Clean the condenser at least twice a year.

CLEANING THE STORAGE COMPARTMENT

IMPORTANT: Do not use any objects or cleaners which may leave residues, odors, or particles. Avoid the use of strong chemicals or abrasive cleaners which may damage the interior surfaces and contaminate product within the storage area.

1. Remove product and store in another suitable cabinet, if possible.Be sure to prevent spoilage of the product which may occur if it is left at room temperature.

2. Turn OFF the Master Power Supply Switch.

3. Remove the shelving.

4. Wash the inside surface of the doors and the entire interior storage area with warm water and baking soda solution—about a tablespoon of baking soda per quart of water. Rinse thoroughly with clear water and wipe dry. This procedure can also be used for cleaning the door gaskets.

5.Wash, rinse, and dry the shelving while it is outside of

the cabinet, using the same procedure as described for the storage area.

6. Be sure to correctly reinstall the shelving, turn ON the

Master Power Supply Switch, check the setting of the Temperature Control, and allow time for cooling of the storage area before storing product.

WARNING

To avoid the possibility of an electrical shock, turn OFF thermostat and unplug the electric cord of the cabinet before cleaning or touching electrical connections or parts.

CAUTION:

Make sure cabinet is disconnected from its power source prior to any

cleaning or maintenance.

FIG. 1

MAINTENANCE & REPAIR 77

BT30CWFMS

GROUNDING

This appliance is equipped with a three-prong (grounding) plug for your protection against shock hazards and should be plugged directly into a properly grounded three-prong receptacle.Where a two-prong wall receptacle is encountered, it must be replaced with a properly grounded three-prong receptacle in accordance with the national electrical code and local codes and ordinances.The work should be done by a qualified electrician. (See figure below.) Do not, under any circumstances, cut or remove the round grounding prong from this plug.

WARNING

Consult a qualified electrician if you have any doubt about the grounding of your wall receptacle. Only a qualified electrician can determine the polarization of your wall receptacle, and only a properly installed three-prong receptacle assures the proper polarization of your wall receptacle, and only a properly installed three-prong receptacle assures the proper polarization with the appliance plug.

GROUNDING

TYPE WALL

RECEPTACLE

POWER SUPPLY CORD WITH 3-PRONG GROUNDING PLUG

FLAMMABLE MATERIAL STORAGE

To meet requirements for storing flammable material, cabinet has no opening, other than the door, or any electrical components below compressor compartment.

NOTE: Do not modify cabinet or remove flammable material storage label on the front.

DEFROSTING & CLEANING

A complete defrost will be required periodically, depending on the usage of the cabinet. To defrost, perform the following:

1. Unload product from the cabinet.

2. Pull power supply cord from wall receptacle.

3.To hasten process, set pans of warm water on shelves of storage compartment, or let a fan blow into the storage area with the door open.

4.Wipe all the shelving and wall surfaces clean and dry.

5. Remove the shelves and shelf standards, if necessary for thorough cleaning.

6. Return all components. Plug in power supply cord.

7. Once the cabinet has attained desired temperature, reload the cabinet with product.

NOTE:

The door may be hard to open for a short period after closing. Wait a few seconds to allow interior air pressure to balance.

Compressor Model Number Americold-HP 121-1-3087 Recommended Operating Temp. Range +10°F to -20°F Cabinet V olts 115/60/1 Expansion Device Cap Tube 8' x .036 Charge Refrig.Type / Oz. / Grams 404A / 14 oz. / 396.9 grams

ELECTRICAL & REFRIGERATION SPECIFICATIONS Low Temp., Solid, 1-Door Freezers BT30CWFMS

SYSTEM COMPONENTS

AMBIENT 70°F / 21.1°C 80°F / 27°C 90°F / 32.5°C

Cavity Temp. (F/C) -9.8° -9.3° -9.3° Suction Pressure (PSIG / Kpa) 7.8 8.7 10.1 Discharge Pressure (PSIG / Kpa) 207.1 236.4 266.3 Compressor Amps 2.9 2.9 3.0 Total Refrigeration Amps 3.0 3.0 3.1

SYSTEM PERFORMANCE

1-DOOR (SOLID) ELECTRICAL/REFRIGERATION SPECS. 81

CONDENSING UNIT LAYOUT BT30CWFMS Low Temp, Solid, 1-Door Freezers

82 CONDENSING UNIT LAYOUT

1. Compressor

2. PTC Relay & Overload

3.Thermostat Capillary

4. Electrical Box

5. Hot Gas Perimeter Loop (Front Face)

6. Condenser

7. Condenser Fan Motor & Blade

8. Cold Wall Process Tube

9. Filter Drier

10. Cap Tube

11. High Side Service Valve

111100

111111

ELECTRICAL BOX COMPONENTS BT30CWFMS

THERMOSTAT SPECIFICATIONS 83

The thermostat is located in the electrical box, just behind the front grill as shown.

The thermostat capillary is routed through the back of the electrical box and inserted in a bulb well that is clamped to the cold wall evaporator.The bulb well is on the top, lefthand side of the unit compartment.

1.Thermostat

2.Terminal Board

3. Star t Capacitor

4. Run Capacitor

5. Power Switch

WIRING DIAGRAM BT30CWFMS

84 WIRING DIAGRAM

BT30CWEXPR

EXPLOSION PROOF STORAGE

This model is also UL listed for storing Flammable Materials.

DO NOT MODIFY CABINET OR REMOVE LABEL ON THE FRONT WHICH SPECIFIES STORAGE LIMITS

CONTAINER REQUIREMENTS

Refer to the latest edition of the following codes to determine correct container requirements and the definition of flammable or combustible liquids.

National Fire Protection Agency (NFPA) 45 Fire Protection for Laboratories using Chemicals. National Fire Protection Agency (NFPA) 99 Health Care Facilities Chapter 7, Laboratories in Health

Related Institutions. NFPA Address: Batterymarch Park, Quincy, MA 02269 You must follow these codes when storing flammable materials.

GENERAL INSTALLATION INFORMATION

For satisfactory and safe operation, you must thoroughly understand the operation of this cabinet and conditions that could be dangerous if instructions are not followed.

As the user of this cabinet, you are responsible to understand how it must be installed for proper function and operation. Any operator of the cabinet must be given adequate training before placing the cabinet in operation. You must be aware of WARNINGS called out in the manual.You must follow all applicab le codes during installation and operation.

The freezer complies with the following:

1. U.L. Listed, Commercial Freezer for Hazardous

Locations. Also Listed for Flammable Materials Storage.Control number 47R6.

2. For use in Class 1, Division 1, groups C and D Haz-

ardous Locations.Operating Temperature Code, T4A.

3. Meets Requirements of OSHA 29CFR 1910.307.

4. Accepted for use:The City of New York

Department of Buildings MEA 327-87-E

For your own benefit—take time to read this manual and retain it for future refence.

REMOVING OUTER DOOR

If the assembled cabinet is too wide to move through narrow doorways, the cabinet doors can be removed as follows:

1. Open doors and lift door off the hinge butts. It is

not necessary to remove the hinge covers to remove the door.

2. After the legs are on and the cabinet is in final

position, set the doors back on the hinge pins.

LOCATING THE CABINET

Select a location most convenient for usage, preferably a clean, dry area, away from sources of heat such as overhead blowers, radiators, ovens, or direct sunlight.

FOR SATISFACTORY OPERATION

1. The cabinet should be free standing with a

minimum of four (4") inches between the cabinet rear and the wall. To allow air flow over the compressor and machinery compartment, a minimum of 12" overhead clearance should be provided.

2. Level the cabinet so door will slowly close when held open about four (4") inches and released.This setting assures self closing if the door is closed hard enough to rebound open.

CAUTION: REFRIGERATION LEAKS OR WET

INSULATION CAUSED BY DRILLING WILL VOID THE WARRANTY!!!

ELECTRICAL SUPPLY REQUIREMENTS

The electrical power supply must be installed according to the latest edition of the NATIONAL ELECTRICAL CODE – specifically Article 510 – Hazardous (Classified Locations - Specific). Appropriate materials and wiring methods must be used in order to comply with the current National Electrical Code for Class 1, Group Cand D area installation. All local and other appropriate codes must be followed.

The installation must be made by a licensed professional electrician and contractor.

POWER SPECIFICATION: 115 Volt, 60 Cycle, 1 Phase RUNNING AMP:4.5 MIN. WIRE SIZE: 14 AWG.

GROUNDING

WARNING:

For personal safety, this cabinet must be properly GROUNDED. The ground wire to the cabinet must be installed on the green screw located in the conduit outlet box. (Refer to drawing.)

The conduit outlet box is where the incoming power wires are connected to the cabinet wires.

The incoming ground wire must be properly installed from the power supply. Consult a licensed electrician if you have any doubt about this wire being properly installed.

BT30CWEXPR INFORMATION 87

WARNING:

Be absolutely sure that the surrounding location has been checked for the absence of explosive concentrations before any electrical work is started.

Overcurrent Protection: 15 amps. (If fuses are used use time delay type.)

CAUTION: TO PREVENT IGNITION OF

HAZARDOUS ATMOSPHERES, DISCONNECT THE PRODUCT FROM THE SUPPLY CABINET CIRCUIT BEFORE OPENING ELECTRICAL BOXES. KEEP ASSEMBLY TIGHTLY CLOSED WHEN IN OPERATION.

The thermostat dial is calibrated in °F, but doesn’t indicate temperatures inside the storage compartment. Typical performance for thermostat control settings are listed below.

Cabinet thermostats are factory preset for 20°F:

Thermostat Setting Cavity Temp.

+25°F +16°F +10°F +4°F

BT30CWEXPR INFORMATION

Compressor Model Number Tecumseh-AE 800AT-421-A4 Recommended Operating Temp. Range (F/C) + 10°F to -20°F (-12° C TO -27°C) Cabinet V olts 115/60/1 Expansion Device Cap Tube 12' x .031 Charge Refrig.Type / Oz. / Grams R-134A / 19 oz. / 538.6 grams

ELECTRICAL & REFRIGERATION SPECIFICATIONS Low Temp., Solid, 1-Door Freezer BT30CWEXPR

SYSTEM COMPONENTS

AMBIENT 70°F / 21.1°C 80°F / 27°C 90°F / 32.5°C

Cavity Temp. (F/C) -5/-21 -5 / -21 +5 / -15 Suction Pressure (PSIG / Kpa) 2.5 / 4 1 / 6 4.2 / 27 Discharge Pressure (PSIG / Kpa) 95 / 655 141 / 972 117 / 1220 Compressor Amps 2.5 2.5 2.6 Total Refrigeration Amps 2.6 2.6 2.7

SYSTEM PERFORMANCE

1-DOOR (SOLID) ELECTRICAL/REFRIGERATION SPECS. 89

90 CONDENSING UNIT LAYOUT

CONDENSING UNIT LAYOUT BT30CEXPR Low Temp, Solid, 1-Door Freezers

1. Compressor

2. PTC Relay & Overload (Sealed Enclosure)

3.Thermostat

4.Thermostat Adjustment (Enclosed)

5. Liquid Line Process Tube (High Side)

6. Compressor Process Tube (Low Side)

7. Cold Wall Process Tube (Low Side)

8. Hot Gas Perimeter Loop

9. Condenser Inlet & Outlet

10. Capillary Tube Inlet

111100

CABINET REAR VIEW BT30CWEXPR

The condenser is attached to the rear of the cabinet via the hold down brackets as shown.

The condenser consists of a 2-piece series circuit arrangement.

CABINET REAR VIEW 91

TEMPERATURE CONTROL BT30CW-EXPR

The temperature control is located on the unit compartment, behind the front grill. To change the cabinet temperature:

1. Remove the two screws that hold the cover in place. 2 Adjust the temperature control knob to the desired

cavity temperature.Replace the cover.

The thermostat dial is calibrated in degrees Fahrenheit, but does not indicate temperatures inside the storage compartment. Typical performance for thermostat control settings is listed below. Cabinet thermostats are factory preset for 0°F.

SWITCH HOUSING COVER REMOVED

IMPORTANT:

Use only factory authorized replacement parts and procedures.

CAUTION:

Always disconnect supply circuits before

removing explosion proof cover.

REPLACEMENT OF SWITCHES

Types E121 & F120

1. Remove cover, (2) switch mounting screws, switch and insulator.

2. Disconnect (3) switch wires at switch ter minal.

3. Install new switch and wire per SET POINT ADJUSTMENTS.

4. Mount switch and insulator inside enclosure and recalibrate per SET POINT ADJUSTMENTS.

SET POINT ADJUSTMENTS

NOTE: For set point adjustments and recalibration, connect control to a calibrated temperature source and stabilize unit.

TYPE E121

Adjust set point by turning external knob and pointer to desired setting on scale.

Recalibration—adjusting set point after replacing switch(es) and/or thermal assembly:

Slowly turn adjustment knob until switch transfers. Compare switch transf er point to actual temperature .If they do not agree, loosen set screws on adjustment knob and align pointer to indicate actual temperature.

92 TEMPERATURE CONTROL

THERMOSTAT BULB PLACEMENT BT30CWEXPR

The Thermostat Bulb is routed through a hole provided on the top, lefthand side of the unit compartment as shown below(1).

THERMOSTAT BULB PLACEMENT 93

The bulb is located 2" from the side wall and at the center line of the tank top as shown.

COMPRESSOR RELAY & OVERLOAD BT30CWEXPR

94 CPMPRESSOR RELAY & OVERLOAD

The PTC relay and overload are located within welded pipe assembly as shown below (cap removed).

1. Compressor Overload #T.I. 4TM762PHBYY-53

2. Compressor PTC Relay #T.I. 8EA402

TROUBLESHOOTING CHARTS

TROUBLE COMMON CAUSE REMEDY

UNIT WILL NOT RUN.

Blown Fuse. Check power for “live” circuit. If outlet is

“dead” but building has power, replace the fuse.Try to determine the cause of the overload or short circuit

Low Voltage. Check outlet with voltmeter. Should check

115V plus or minus 10%. If circuit is overloaded, either reduce load or

have electrician install separate circuit. If unable to remedy any other way, install

auto-transformer.

Open motor or temperature control. Jumper across terminals of control. If unit

runs and connections are all tight, replace control. Power element may have lost charge or points may be dirty. Repair or

replace thermostat. Open relay. Check relay. Replace if necessary. Open overload. Check overload.Replace if necessar y Open compressor. Check compressor.Replace if necessary. Open service cord. Check with ohmmeter at unit. If no circuit

and current is indicated at outlet, replace

or repair. Broken lead to compressors or cold Repair or replace broken leads.

control. Service cord not plugged in. Plug in cord.

CABINET TOO W ARM.

Thermostat position set too warm, not Turn knob to colder position. allowing unit to operate often enough.

Fan motor not running. Check and replace fan motor if necessary. Shortage of refrigerant Check for leaks. Repair, evacuate and

recharge system. Not enough air circulation around Relocate cabinet or provide clearance to

cabinet. allow sufficient circulation. Dirty condenser or obstructed Clean the condenser and the ducts.

condenser ducts. Thermostat control capillary not Refer back to removal/installation

properly installed. instructions detailed in this manual.

TROUBLESHOOTING 95

TROUBLE COMMON CAUSE REMEDY

CABINET RUNS

Not enough air circulation around Relocate cabinet or prov ide proper clearances

CONTINUOUSLY.

cabinet or circulation is restricted. around cabinet.Remove restriction. Cooling large quantities of product or Explain to customer that heavy loading

heavy loading. causes long running time. Refrigerant charge undercharged Check, evacuate and recharge with proper

or overcharged. charge. Room temperature too warm. Ventilate room as much as possible. Thermostat defective. Check control.If it allows unit to operate all

the time, replace control.

NOISY OPERATION.

Loose flooring or floor not firm. Tighten flooring or brace floor. Tubing contacting cabinet or other tubing. Move tubing gently! Cabinet not level. Level cabinet. Compressor mechanically grounded. Replace compressor mounts. Fan hitting drain pan or Move fan.

mechanically grounding. Shipping bands rubbing. Make sure all shipping bands have been cut

and removed. Loose fan blades or motor. Tighten fan blades and/or motor. Loose parts or refrigeration or electrical Tighten all loose fittings. Move misplaced

lines out of place. lines.

UNIT CYCLES ON

Short relay. Replace relay

OVERLOAD.

Weak overload protector. Replace overload protector. Low voltage. Check outlet with voltmeter. Under load voltage

should be 115V plus or minus 10%. Check

for several cabinets on same circuit or

extremely long or underseed cord being used. Short compressor. Check with meter and also ground before

replacing.

CABINET LIGHTS

Light switch off or defective. Tr y new bulb or bulbs. Inspect lampholders

WILL NOT WORK.

for signs of bad connections.

COMPRESSOR

Incorrect voltage. Check voltage to compressor terminal

WILL NOT RUN.

board.Voltage must be plus or minus 10% of

nameplate voltage.

96 TROUBLESHOOTING

TROUBLE COMMON CAUSE REMEDY

UNIT RUNS

Abnormally high, heavy use of cabinet. Heavy usage requires more operation

TOO MUCH.

Check usage and correct or explain. Shortage of refrigerant. Unit must run Put in the normal charge and check for

longer and will operate at a lower leaks. than normal suction pressure.

Overcharge of refrigerant.Excess- Remove excess charge. ively cold or frosted suction liner results in lost refrigeration effort.

Restricted air flow over condenser Correct the condition. or air or non-condensable gases in system.

High room temperature. Check for temperature variance.Correct

condition. Compressor inefficient. Replace. Thermostat setting too cold. Raise setting.

UNIT SHORT CYCLES.

Cycling on overload because of high/low Check voltage, head pressure and air line voltage with variance more or less passages. Repair and correct condition. than 10% from 115 volts.May also be caused by head pressures too high.

PRODUCT T OO COLD.

Thermostat set too cold. Set warmer.(Setting #1 is the warmest;#7 is

the coldest.) Thermostat bulb contact bad. If the bulb contact is bad, the bulb

temperature will lag behind the sleeve

temperature, causing the unit to run longer

and make the cabinet too cold.Make sure

bulb makes good contact with the bulb well. Room temperature abnormally low. Correct conditions.

PRODUCT T OO WARM.

Thermostat set too warm. Set colder. (setting #1 is the warmest; #7

the coldest. Thermostat contact points dirty Clean or replace thermostat.

or burned. Thermostat out of adjustment. Readjust or change thermostat. Excessive service load or abnormally Educate customer about problems that are

high room temperature. caused by improper loading and excessive

room temperature fluctuations. Excessive frost accumulation. Defrost the cabinet.

TROUBLESHOOTING 97

COMPRESSOR – TROUBLESHOOTING CHARTS

TROUBLE COMMON CAUSE REMEDY

WON’T START. NO HUM.

Open line circuit. Check wiring, fuses, receptacle. Protector open. Wait for reset—check current. Control contacts open. Check control, check pressures. Open circuit in stator. Replace stator or compressor.

WON’T START. HUMS

Improperly wired. Check wiring against diagram.

INTERMITTENTLY. (cycling on protector)

Low line voltage. Check main line voltage, determine location of

voltage drop. Open starting capacitor. Replace starting capacitor. Relay contacts not closing. Check by operating manually. Replace relay if

defective. Open circuit in start winding. Check stator leads. If leads are all right,

replace compressor. Stator winding grounded (normally Check stator leads.If leads are all right

will blow fuse.) replace compressor. High discharge pressure. Eliminate cause of excessive pressure.Make

sure discharge shut-off and receiver valves

are open if applicable. Tight compressor. Check oil level – correct binding condition, if

possible.If not, replace compressor. Weak starting capacitor or one weak Replace.

capacitor of a set.

COMPRESSOR STARTS –

Low line voltage. Bring up voltage.

MOTOR WON’T GET OFF ST AR TING WINDING.

Improperly wired. Check wiring against diagram. Defective relay. Check operation – replace relay if defective. Running capacitor shorted. Check resistances. Replace capacitor if

defective. Starting and running windings shorted. Check capacitance – replace if defective. Starting capacitor weak or one of a Check capacitance.Replace if defective.

set open. High discharge pressure. Check discharge shutoff valves.

Check pressure. Tight compressor. Check oil level.Check binding. Replace

compressor if necessary.

98 TROUBLESHOOTING

TROUBLE COMMON CAUSE REMEDY

COMPRESSOR STARTS

Low line voltage. Bring up voltage.

& RUNS BUT CYCLES ON PROTECTOR.

Additional current passing through Check for added fan motors and pumps protector. connected to wrong side of protector.

Suction pressure too high. Check compressor for proper application. Discharge pressure too high. Check ventilation, restrictions and overcharge. Protector weak. Check current - replace protector if

defective. Running capacitor defective. Check capacitance.Replace if defective. Stator partially shor ted or grounded. Check resistances; check for ground.Replace

if defective. Inadequate motor cooling. Correct cooling system. Compressor tight. Check oil level.Check for binding condition. Unbalanced line (three-phase). Check voltage of each phase.If not equal,

correct condition of unbalance. Discharge valve leaking or broken. Replace valve plate.

STARTING CAPACITORS

Short cycling. Reduce number of starts to 20 or less per

BURNT OUT.

hour. Prolonged operation on starting Reduce starting load (install crankcase

winding. pressure limit valve), increase voltage if

low – replace relay if defective. Relay contacts sticking. Clean contacts or replace relay. Improper relay or incorrect relay setting. Replace relay. Improper capacitor. Check parts list for proper capacitor rating:

mfd. and voltage. Capacitor terminals shorted by water. Install capacitors so terminals won’t be wet.

RUNNING CAPACITORS

Excessive line voltage. Reduce line voltage to not over 10% above

BURNT OUT.

rating of motor. High line voltage and light load. Reduce voltage if over 10% excessive. Capacitor voltage rating too low. Install capacitors with recommended voltage

rating Capacitor terminals shorted by water Install capacitors so terminals won’t be wet.

RELAYS BURNT OUT.

Low line voltage. Increase voltage to not less than 10% above

motor rating. Excessive line voltage. Reduce voltage to not more than 10% above

motor rating. Incorrect running capacitor. Replace with correct capacitor. Short cycling. Reduce number of starts per hour. Relay vibrating. Mount relay rigidly. Incorrect relay. Use relay recommended for specific motor

compressor.

TROUBLESHOOTING 99

FLUORESCENT LAMP – TROUBLESHOOTING CHARTS

TROUBLE COMMON CAUSE REMEDY

NORMAL END OF LIFE.

Normal failure.Active material on Replace lamp promptly.

Lamp won’t operate.Flashes momen-

cathodes exhausted.

tarily and goes out or blinks on and off. Ends probably blackened.

SHORT LIFE.

Wrong lamp type used. Replace with lamp type marked in owner’s

manual. Wrong type of starter. Replace with correct starter. Ballast not supplying the specified Replace with correct ballast for rating for

electrical values. lamp size. Wrong type of ballast used. Replace ballast with proper type. Too low or too high voltage. Check primar y voltage with range

specified on ballast name plate. Poor circuit contact (likely at lamp- Lampholders should be rigidly mounted

holders). and lamp securely seated. Ballast improperly or incompletely Study ballast label wiring diagram and

connected. check connections. Too many lamp starts. Average life for most lamps is dependent on

number of starts and hours of operation.

END BLACKENING.

Normal end of life. Replace lamp promptly.

Dense blackening at one end or both, extending 2"-3" from base.

Mercury deposit – generally within Should evaporate as lamp is operated. 1" of lamp end.

Poor circuit contact likely at the Lampholders should be rigidly mounted lampholder. and lamp securely seated.

Ballast improperly or incompletely Study ballast wiring instructions and check connected. connections.

Wrong type lamp used. Replace with correct lamp type. Wrong type of starter or defective Replace with proper starter.

starter causing on/off blinking or prolonged flashing at each start.

Ballast installed not supplying the Replace with ballast of correct rating for specified electrical values. lamp size.

Line voltage too low or too high. Check line voltage with range specified on

ballast plate. Ballast improperly or incompletely Study ballast label wiring instructions and

connected. check connections.

The manufacturer uses standard fluorescent lamps in ail of its applications. Standard one- and two-lamp ballast circuits are used.

Replacement lamps should be purchased over the counter from a local electrical wholesaler. The table below indicates general problems that ma y be encountered with fluorescent lighting applications , possible

causes, and corrective maintenance suggestions.

100 TROUBLESHOOTING

TROUBLE COMMON CAUSE REMEDY

NO STARTING EFFORT

Open lamp cathode circuit due to If open, circuit is shown by continuity test or

OR SLOW STARTING.

broken cathode, air leak, or by viewing end of bulb against a pinhole open weld. of light. Replace lamp.

Wrong lamp type used. Replace with lamp type indicated in owner’s

manual. Starter at end of life. Replace starter. Starter sluggish. Replace starter. Ballast installed not supplying the Replace with correct ballast of correct

specified electrical values. rating for lamp size. Temperature cold air contact to Correct installation of lamp protection

bulb. tubes, or shields to prevent cold air effects. Circuit voltage. Check voltage and correct if possible.

DECREASED LIGHT

Temperature operation, cold air Properly install jacketed lamps where

OUTPUT. Full illumination of

affects lamp performance. applicable.

bulbs requires correct assembly of all components of lighting system.

Circuit voltage. Check voltage and correct if possible. Ballast improperly or incompletely Study ballast label wiring instructions and

connected. check connections. Dust or dirt on lamp or fixture. Clean.

BLINKING ON/OFF:

Normal failure. Active material on Replace lamp promptly.

Accompanied by shimmering

cathodes exhausted.

effect during “lighted” period.

Possible lamp fault in some lampholders. Replace lamp.Investigate further if

successive lamps blink or flicker during

“lighted” period. Wrong type of starter or defective starter. Replace with proper starter. Ballast installed not supplying the Replace with correct ballast with correct

specified electrical circuit. rating for lamp size. Circuit voltage. Check voltage and correct if possible. Loose circuit contact. Lampholders should be rigidly mounted and

lamp securely seated.

OVERHEATED BALLAST.

Wrong lamp type used. Replace with correct lamp number located in

owner’s manual. Wrong ballast used.Wrong voltage Replace ballast.

rating. Circuit voltage. Check voltage and correct to design

specifications. Ballast improperly or incompletely Study ballast label. Correct if installed

connected. wrong.

TROUBLESHOOTING 101

REMOTE CABINET

WIRING & PIPING

INFORMATION

TYPICAL REMOTE UPRIGHT INSTALLATION (Top Mount)

MAINTENANCE & REPAIR 105

NOTE:

1. All refrigeration and electrical materials between condensing unit and cabinets are to be supplied by the installing contactor.

2. Suction lines must be insulated with 1/2" thick aramflex or equal their entire length.

3. Refrigeration lines should be run as shor t and direct as possible.

4.To aid oil drainage, horizontal suction lines should be pitched downward at least 1/2" per 10 feet of run.

5.To insure oil return, a “P” trap must be installed in the

suction line a the foot of every riser.

6. Liquid line not shown - Do not run liquid line inside insulation with suction line.

Beverage Air T50LGPHD-5 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual