Hussmann GSVM5272-A, GSVM4060-A Manual

Page 1

GSVM-A

Medium Temperature Self Contained

Open Vertical Merchandiser

WARNINGS:

If the information in these instructions are not followed exactly, a ﬁre or explosion may result, causing property damage, personal injury or death.

Installation and service must be performed by a qualiﬁed installer or service agency.

READ THE ENTIRE MANUAL BEFORE INSTALLING OR USING THIS EQUIPMENT.

The unit uses R-290 gas as the refrigerant. R-290 is ﬂammable and heavier than air. It collects ﬁrst in low areas but can be circulated by the fans. If propane gas is present or even suspected, do not allow untrained personnel to attempt to ﬁnd the cause. The propane gas used in the unit has no odor. The lack of smell does not indicate a lack of escaped gas. If a leak is detected, immediately evacuate all persons from the store, and contact the local ﬁre department to advise them that a propane leak has occurred. Do not let any persons back into the store until the qualiﬁed service technician has arrived and that technician advises that it is safe to return to the store. No open ﬂames, cigarettes or other possible sources of ignition should be used inside or in the vicinity of the units.

with R-290 Refrigerant

Installation &

Operation Manual

FAILURE TO ABIDE BY THIS WARNING COULD RESULT IN AN EXPLOSION, DEATH, INJURY AND PROPERTY DAMAGE.

IMPORTANT Keep in store for future reference!

MANUAL- I/O GSVM-A

P/N 3109358_B

February 2020

Spanish 3109361

Page 2

P/N 3109358_B ii

BEFORE YOU BEGIN

Read these instructions completely and carefully.

PERSONAL PROTECTION EQUIPMENT (PPE)

Personal Protection Equipment (PPE) is required whenever installing or servicing this equipment. Always wear safety glasses, gloves, protective boots or shoes, long pants, and a long-sleeve shirt as required when installing or servicing this equipment.

1. If the information in these instructions are not followed exactly, a ﬁre or explosion may result, causing property damage, personal injury or death.

2. Installation and service must be performed by a qualiﬁed installer or service agency.

3. This unit is designed only for use with R-290 gas as the designated refrigerant.

THE REFRIGERANT LOOP IS SEALED. ONLY A QUALIFIED TECHNICIAN SHOULD ATTEMPT TO SERVICE!

• Propane is ﬂammable and heavier than air.

• It collects ﬁrst in the low areas but can be circulated by the fans.

• If R-290 is present or even suspected, do not allow untrained personnel to attempt to ﬁnd the cause.

• The propane gas used in the unit has no odor.

• The lack of smell does not indicate a lack of escaped gas.

• If a leak is detected, immediately evacuate all persons from the store, and contact the local ﬁre department to advise them that a pro pane leak has occurred.

• Do not let any persons back into the store until the qualiﬁed service technician has arrived and that technician advises that it is safe to return to the store.

• A hand-held propane leak detector (“sniffer”) shall be used before any repair and/or maintenance.

• No open ﬂames, cigarettes or other possible sources of ignition should be used inside the building where the units are located until the qualiﬁed service technician and/or local ﬁre department determines that all propane has been cleared from the area and from the refrigeration systems.

• Component parts are designed for propane and non-incendive and non-sparking. Component parts shall only be replaced with identical repair parts.

FAILURE TO ABIDE BY THIS WARNING COULD RESULT IN AN EXPLOSION, DEATH, INJURY AND PROPERTY DAMAGE.

Page 3

TABLE OF CONTENTS iii

ANSI Z535.5 DEFINITIONS ............. iv

INSTALLATION

UL Listing Federal / State Regulation Hussmann Product Control Shipping Damage Apparent Loss Or Damage Concealed Loss Or Damage Location Self Contained (Location) Model Description Unloading Unloading from Trailer Exterior Loading Shipping Skid Merchandiser Leveling Optional Legs Serial Plate Location Refrigeration Unit Access Sealing Merchandiser to Floor

............................ 1-1

............... 1-1

.............. 1-1

...................... 1-1

.............. 1-1

............. 1-1

.............................. 1-1

................ 1-2

..................... 1-2

............................ 1-3

................ 1-3

....................... 1-3

......................... 1-3

.................. 1-4

......................... 1-4

.................... 1-4

................ 1-4

............ 1-4

Hussmann Self-Contained Refrigeration Equipment Start Up Check List

.......... 1-5

ELECTRICAL / REFRIGERATION

Merchandiser Electrical Data Field Wiring Electrical Connections Power Switch Electrical Outlet

........................... 2-1

. . . . . . . . . . . . . . . . . . . 2-1

.......................... 2-1

........................ 2-1

Refrigeration (Self Contained Models) Waste Outlet and Water Seal Optional Electric Condensate Pan Refrigeration System Service Safety

.......................... 2-4

.................... 2-3

............. 2-1

..... 2-2

............. 2-2

...........2-2

Replacing Refrigeration System Componets Steps to Recover Refrigerant Charging

............................. 2-5

Waste Outlet and Water Seal

......................2-5

............. 2-5

............. 2-6

START UP / OPERATION

Controller Operation Controller Connections Controller LED Controller Buttons

.................... 3-1

.................. 3-2

........................ 3-3

..................... 3-4

Sensor to Control Configuration Controls and Adjustments Load Limits Stocking Solar Thermometer Shelf Maximum Weight Limits

...........................3-6

............... 3-7

........................... 3-8

.............................. 3-8

..................... 3-8

............ 3-9

MAINTENANCE

Care and Cleaning Exterior Surfaces Interior Surfaces Do NOT Use: Do:

...................................4-1

Cleaning Discharge Honeycomb Cleaning Stainless Steel Surfaces Cleaning Solar Thermometer Cleaning Under Display Pan Cleaning Evaporation Pan Cleaning Coils Removing Scratches from Bumper

...................... 4-1

...........................4-1

.......... 4-2

............4-2

...............4-2

............. 4-3

............... 4-3

......................... 4-4

......... 4-4

Self-Contained Refrigeration Equipment Maintenance Check List

.................4-5

SERVICE

Replacing Fan Motors and Blades

......... 5-1

Replacing Evaporation Fan Motors and Blades

......................5-2

Replacing Food Compartment Fan Motors and Blades LED Fixture Replacement Troubleshooting Guide Troubleshooting Light Guide GSVM Accessories

................. 5-3

................5-4

.................. 5-5

............. 5-6

..................... 5-6

IMPORTANT

KEEP IN STORE FOR FUTURE REFERENCE

Quality that sets industry standards!

12999 St. Charles Rock Road • Bridgeton, MO 63044-2483

U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900

www.hussmann.com

Page 4

REVISION HISTORY

REVISION B — FEBRUARY 2020 Added Warning

ORIGINAL ISSUE — FEBRUARY 2020

AT TENTION

* * * * * * * * * * * * * * * * * * * * * * * * * * ANSI Z535.5 DEFINITIONS

• DANGER – Indicate[s] a hazardous

situation which, if not avoided, will result in death or serious injury.

• WARNING – Indicate[s] a hazardous situation which, if not avoided, could result in death or serious injury.

• CAUTION – Indicate[s] a hazardous situation which, if not avoided, could result in minor or moderate injury.

• NOTICE – Not related to personal injury – Indicates[s] situations, which if not avoided, could result in damage to equipment.

Merchandiser must operate for 24 hours

before loading product!

Regularly check merchandiser temperatures.

Do not break the cold chain. Keep products

Do not break the cold chain. Keep products in

in freezer before loading into merchandiser.

cooler before loading into merchandiser.

These merchandisers are designed

for only pre-frozen products.

for only pre-chilled products.

— LOCK OUT / TAG OUT — To avoid serious injury or death from electrical shock, always disconnect the electrical power at the main disconnect when servicing or replacing any electrical component. This includes, but is not limited to, such items as doors, lights, fans, heaters, and thermostats.

All installation and operating instructions concerning the handling, moving, and use of these merchandisers must be carefully followed to avoid either damaging the refrigerant tubing, or increasing the risk of a leak.

Do not use mechanical devices or other means to accelerate the defrosting process.

Do not use electrical appliances inside the food storage compartments of the case.

Case ventilation openings must be clear of any obstructions. Do not damage the refrigerant circuit.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 5

P/N 3109358_B 1-1

INSTALLATION

UL LISTING

These merchandisers are manufactured to meet ANSI/ UL 471 standard requirements for safety. Proper installation is required to maintain the listing.

FEDERAL / STATE REGULATION

These merchandisers at the time they are manufactured, meet all federal and state/ provincial regulations. Proper installation is required to ensure these standards are maintained. Near

the serial plate, each merchandiser carries a label identifying the environment for which the merchandiser was designed for use.

ANSI/NSF-7 Type I – Display Refrigerator /

Freezer

Intended for 75°F (24°C) / 55%RH Ambient Application

ANSI/NSF-7 Type II – Display Refrigerator / Freezer

Intended for 80°F / 55%RH Ambient Application

ANSI/NSF-7 – Display Refrigerator

Intended for Bulk Produce

GSVM4060 and GSVM4072 are designed to perform to Type II conditions. GSVM 5072 is designed to perform to Type I conditions.

Any claim for loss or damage must be made to the carrier. The carrier will provide any necessary inspection reports and/or claim forms.

Apparent Loss or Damage

If there is an obvious loss or damage, it must be noted on the freight bill or express receipt and signed by the carrier’s agent; otherwise, carrier may refuse claim.

Concealed Loss or Damage

When loss or damage is not apparent until after equipment is uncrated, retain all packing materials and submit a written response to the carrier for inspection within 15 days.

Recommended operating ambient

temperature is between 65°F (18°C)

to 80°F (24°C) for GSVM4060 &

GSVM 4072. 65°F (18°C) to 75°F

(24°C) for GSVM5272. Maximum

relative humidity is 55%.

HUSSMANN PRODUCT CONTROL

The serial number and shipping date of all equipment is recorded in Hussmann’s files for warranty and replacement part purposes. All correspondence pertaining to warranty or parts ordering must include the serial number of each piece of equipment involved. This is to ensure the customer is provided with the correct parts

SHIPPING DAMAGE

All equipment should be thoroughly examined for shipping damage before and during unloading. This equipment has been carefully inspected at our factory.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

LOCATION

These merchandisers are designed for displaying products in air conditioned stores where temperature is maintained at or below the ANSI / NSF-7 specified level and relative humidity is maintained at or below 55%.

Placing refrigerated merchandisers in direct sunlight, near hot tables or near other heat sources could impair their efficiency. Like other merchandisers, these merchandisers are sensitive to air disturbances. Air currents passing around merchandisers will seriously impair their operation. Do NOT allow air conditioning, electric fans, open doors or windows, etc. to create air currents around the merchandiser.

GSVM-A Open Vertical Merchandisers

Page 6

1-2 installation

SELF CONTAINED (LOCATION)

These models have front condenser air intake and discharge air at the rear of the case. Maintain a minimum clearance distance of two feet in front of the merchandiser so that air intake is not obstructed. Provide a minimum of a 1-inch clearance for air circulation at the rear of the case.

GSVM-5272 GSVM-4072

MODEL DESCRIPTION

GSVM-A open vertical merchandisers offer versatility in the display of medium temperature (32º F to 41ºF) products such as dairy products, prepared salads, pizza and fresh entrees that are pre-chilled in a cooler. Carefully read and follow the instructions prior to operating the merchandiser.

August 31, 2018

This warning does not mean that Hussmann products will cause cancer or reproductive harm, or is in violation of any product-safety standards or requirements. As clarified by the California State government, Proposition 65 can be considered more of a ‘right to know’ law than a pure product safety law. When used as designed, Hussmann believes that our products are not harmful. We provide the Proposition 65 warning to stay in compliance with California State law. It is your responsibility to provide accurate Proposition 65 warning labels to your customers when necessary. For more information on Proposition 65, please visit the California State government website.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 7

P/N 3109358_B 1-3

UNLOADING

Unloading from Trailer:

Lever Bar (also known as a Mule, Johnson Bar, J-bar, Lever Dolly, or Pry Lever)

Move the merchandiser as close as possible to its permanent location and remove all packaging. Check for damage before discarding packaging. Remove all separately packed accessories such as kits and shelves. Improper handling may cause damage to the merchandiser when unloading to avoid damage:

1. Do not drag the merchandiser out of the trailer. Use a Johnson bar (mule).

2. Use a forklift or dolly to remove the merchandiser from the trailer.

Do not walk or put heavy objects on case.

SHIPPING SKID

Each merchandiser is shipped on a skid to protect the merchandiser’s base, and to make positioning the case easier.

Do not remove the shipping skid until the merchandiser is near its final location. The skid provides protection for both the merchandiser and the floor.

Remove the skid by raising one end of the merchandiser approximately

6 inches. Block the merchandiser securely, and remove the two skid bolts from the raised end. Replace the bolts with (provided) leg levelers. Repeat this procedure at opposing end. Once the leg levelers are secured in place, the merchandiser may be slid off the skid and placed in its final location.

DO NOT TILT MERCHANDISER ON ITS SIDE OR END WHEN REMOVING SKID.

EXTERIOR LOADING

Do NOT walk on top of merchandisers or

damage to the merchandisers and serious personal injury could occur.

merchandisers are not structurally designed to support external loading

such as the weight of a person. Do not place heavy objects on the merchandiser.

Once the skid is removed, the merchandiser must be lifted —NOT PUSHED— to reposition.

Check floor where merchandisers are to be set to see if it is a level area. Determine the highest part of the floor.

Do NOT remove shipping crate until the merchandiser is positioned for installation.

Do NOT stand or walk on top of

merchandiser. Do not store items or

ammable materials atop the unit.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 8

1-4 installation

MERCHANDISER LEVELING

Be sure to position merchandisers properly.

Level the merchandiser by all four corners. Merchandiser(s) must be installed level to ensure proper operation of the refrigeration system, and to ensure proper drainage of defrost water.

OPTIONAL LEGS

NSF

approved legs replace the leg levelers if required by local health codes. The legs raise the case 6 inches for cleaning purposes. An optional skirt kit can be provided to snap on the legs.

SERIAL PLATE LOCATION

The serial plate is located on the interior top, left side of the merchandiser. It contains all pertinent information such as model, serial number, amperage rating, refrigerant type and charge. This information will be needed to install, service or order parts for the merchandiser.

REFRIGERATION UNIT ACCESS

The lower front panel may be removed by removing screw at bottom and lifting the panel straight upward and over the tabs on which it is hanging. The panel is installed by reversing the above procedure.

Ensure lower front panel is flat against the floor when installed to prevent air circulation problems for self contained merchandisers.

Controller

Display

Front Panel

Lift up and out to remove access panel

Display is mounted on left side of access panel. Be careful not to detach cable from display when removing access panel.

SEALING MERCHANDISER TO FLOOR

If required by local sanitary codes, or if the

Serial Plate

customer desires, merchandisers may be sealed to the floor using a vinyl cove base trim. The size needed will depend on how much variation there is in the floor, from one end of the merchandiser to the other. Sealing of the lower front and rear panels on self contained models may hamper their removal for servicing or maintenance of the condensing unit.

NOTE: Do not allow trim to cover any intake or discharge grilles located in the lower front panel.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 9

P/N 3109358_B 1-5

Form HSCW01 Rev. 30MAY12 P/N 0525209_B

Hussmann Self-Contained Refrigeration E quip ment Sta rt Up Check List

***Please note that failure to follow this start-up document may void your factory warranty***

Step Startup Activity Check

Locate, read and maintain install/operation manual in a safe place for

future reference.

2 Examine unit. Confirm there is NO damage or concealed damage.

3 Level the unit, side to side and front to rear.

4 Remove all shipping brackets/compressor straps/bolts etc.

Unit must be run on a dedicated electrical circuit without the use of

an extension cord.

Ensure that the proper electrical requirements for the equipment are

supplied.

7 Verify field electrical connections are tight.

Verify all electrical wiring is secured and clear of any sharp edges or

hot lines.

9 Verify the condensate drain line is properly trapped and pitched.

10 Verify all required clearances on the sides and back of unit.

Advise owner/operator that merchandiser must operate at temperature for 24 hrs prior to loading

Verify there are no air disturbances external to the unit. Heat and air registers, fans, and doors etc.

with product.

LEGAL DISCLAIMER:

Hussmann shall not be liable for any repair or replacements made without the written consent of Hussmann, or w hen the productis installed or operated in a manner contrary to the printed instructions covering installation and service which accompanied such product.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 10

1-6 installation

NOTES:

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 11

P/N 3109358_B 2-1

ELECTRICAL / REFRIGERATION

MERCHANDISER ELECTRICAL DATA

Refer to Appendix A of this manual or the

merchandiser’s serial plate for electrical

information.

FIELD WIRING

Field wiring must be sized for component

amperes stamped on the serial plate. Actual

ampere draw may be less than specified.

ALWAYS CHECK THE SERIAL PLATE FOR

COMPONENT AMPERES

ELECTRICAL CONNECTIONS

All wiring must be in compliance with NEC

and local codes. These models have a factory

installed power cord. All electrical connections

are to be made in the electrical Handy Box

located behind the removable base panel at the

left end of the merchandiser when facing the

discharge air honeycomb.

ELECTRICAL OUTLET

Before the merchandiser is connected to any wall circuit, use a voltmeter to check that the outlet is at 100% of the rated voltage. The wall circuit must be dedicated for the merchandiser. Failure to do so voids the warranty. Do not use an extension cord. Never plug in more than one merchandiser per electrical circuit.

• Always use a dedicated circuit with the amperage stated on the unit.

• Plug into an outlet designed for the plug.

• Do not overload the circuit.

• Do not use long or thin extension cords. Never use adapters.

• If in doubt, call an electrician.

GSVM-A have a factory-installed power cord that is attached at the electrical box.

POWER SWITCH

The main electrical power switch is located behind the front louvered access panel. The power switch must be turned OFF before servicing the merchandiser.

Merchandiser must be grounded.

Do not remove the power supply cord ground.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

NEMA 5-15P

Electrical Plug

Risk of Electric Shock. If cord or plug

becomes damaged, replace only with

a cord and plug of the same type.

GSVM-A Open Vertical Merchandisers

Page 12

2-2 electrical / refrigeration

REFRIGERATION (Self Contained Models)

Each self contained model is equipped with its own condensing unit and control panel located beneath the display area. The correct type of refrigerant will be stamped on each merchandiser’s serial plate. The merchandiser refrigeration piping is leak tested. The unit is factory charged with R-290 refrigerant.

These models have a refrigeration system that uses a hermetic compressor. A capillary tube is used for metering refrigeration flow from the condenser to the evaporator. If the

capillary should become plugged or damaged, it is best to replace the heat exchanger.

WATER OUTLET AND WATER SEAL

These merchandisers have a water seal that drains into an electric condensate pan, located beneath the merchandiser. The discharge line runs to the evaporation pan in order to cool down discharge line temperature and to gain capacity and improve efficiency.

The pan uses an SS Relay that modulates water inside the pan, adjusting the amount of heat required to evaporate the water .

Ensure the drain hose is properly trapped, and the drain area is not clogged.

NOTE: All lower base panels must be in place when the refrigerator is operating. If not, airflow from the condenser will be directed over the evaporator pan and defrost water in the pan may overflow.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 13

P/N 3109358_B 2-3

REFRIGERATION SYSTEM

(Views below show slide out refrigeration system)

Slide out condensing unit tray by the

handle as indicated by the label.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 14

2-4 electrical / refrigeration

Before Beginning Any Service or Repair:

Use a hand-held propane leak detector (“sniffer”) to ensure no propane is present in the immediate area, the inside of the display case and the inside of the refrigeration system. R-290 is an odorless refrigerant. Keep the area clear of all customers and non-essential or unauthorized personnel.

Only Hussmann or factory trained technicians should

Verify that all repair parts are identical models to the ones they are replacing. Do not substitute parts such as motors, switches, relays, heaters, compressors, power supplies or solenoids. Failure to do so can result in an explosion, death, injury and property damage. Parts used on hydrocarbon cases must meet specic UL certication for non-incendive or nonsparking components. Use only Hussmann approved parts approved through the Hussmann Performance Parts Website. https://parts.

hussmann.com/

Brazing must not begin before all propane has been cleared from the immediate area — the inside of the displays case and the inside of the refrigeration system.

If a leak is detected, follow store safety procedures. It is the store’s responsibility to have a written safety procedure in place. The safety procedure must comply with all applicable codes such as local re department’s codes.

At minimum, the following actions are required:

• Immediately evacuate all persons from the store, and contact the local re department to advise them that a propane leak has occurred.

• Call Hussmann and/or a qualied service agent and inform them that a propane sensor has detected the presence of propane.

• Do not let any persons back into the store until the qualied service technician has arrived and that technician advises that it is safe to return to the store.

service or repair this R-290 (propane) equipment.

Failure to follow instructions can result in an explosion, death, injury

and property damage.

• The propane gas used in the unit has no odor. The lack of smell does not indicate a lack of escaped gas.

• A hand-held propane leak detector (“sniffer”) should be used before any repair and/ or maintenance is attempted. All repair parts must be identical models to the ones they are replacing.

• No open ﬂames, cigarettes or other possible sources of ignition should be used inside the building where the units are located until the qualied service technician and/or local re department determines that all propane has been cleared from the area and from the refrigeration systems.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 15

P/N 3109358_B 2-5

REPLACING REFRIGERATION SYSTEM COMPONENTS

7. Pull vacuum to a minimum of 200 microns or lower.

Only Hussmann service technicians or technicians qualied to handle R-290 (propane) refrigerant should service or repair this R-290 (propane) equipment Failure to follow instructions can result in an explosion, death, injury and property damage.

STEPS TO RECOVER REFRIGERANT

1. Make sure you are in a well ventilated area before making any service or repair to the refrigeration system.

2. Disconnect all power sources from the system. Some systems may have more than one plug or power supply.

3. Tap system with line tap valves, attaching gauges to the high and low sides of the system.

refrigeration line tapping valve

4. Connect hose to an evacuated recovery tank. Open refrigeration gauges and recovery tank.

CHARGING

A calibrated scale with +/-2 gram accuracy must be used to charge the system. The charge amount is shown on the serial plate. Only R-290 grade refrigerant can be used. Standard propane does not meet the purity/moisture content of R-290, and therefore cannot be used to charge cases.

No gas charge adjustments are allowed. When connecting hoses between the refrigeration system, manifold gauges, and refrigerant cylinder, ensure that the connections are secure and there are no potential sources of ignition nearby. Ensure that contamination of different refrigerants does not occur when using charging equipment.

5. With the suction valve in vacuum, the refrigerant will be recovered into the recovery tank.

6. Once recovered, close the tank valve and remove the guage from the tank and connect nitrogen tank to the system to purge it with nitrogen.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 16

2-6 electrical / refrigeration

WATER OUTLET AND WATER SEAL

Use dedicated hoses to service R-290 (propane) refrigeration systems. Hoses or lines should be as short as possible to minimize the amount of refrigerant contained in them.

Ensure that the refrigeration system is properly grounded prior to charging the system with refrigerant, to avoid the potential for static build-up.

Component parts shall be replaced with like

components, and servicing shall be done by

factory authorized service personnel only, so

as to minimize the risk of possible ignition due to incorrect parts or improper service.

Extreme care must be taken not to overll the refrigeration system. After charging, carefully disconnect the hoses, attempting to minimize the quantity of refrigerant released. Further leak check the service ports, hoses, refrigerant tanks. The service ports shall be checked for leaks using a hydrocarbon leak detector with a sensitivity of 3 grams/year (0.106 Oz/year) leak rate.

The condensate water outlet is located in the center of the merchandiser. The outlet has a factory installed, external water seal.

For self contained models, this water seal drains into the condensate evaporator pan located beneath the merchandiser. The pan uses a thermistor that senses water in the pan and adjusts the amount of heat required to evaporate the water. Ensure the drain hose

is properly trapped, and the drain area is not clogged.

NOTE: All lower base panels must be in place when the refrigerator is operating. If not, airflow from the condenser will be directed over the evaporator pan and defrost water in the pan may overflow.

Refrigeration lines are under pressure.

Refrigerant must be recovered before

attempting any connection or repair.

Thoroughly leak check the service ports. If no leak is present, use a pinch-off tool to close the ends of the service tubes before brazing them shut. Remove all service ports. If a Schrader valve is used on the compressor service tube, it must be removed and the previous steps followed in order to braze the service tube shut.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 17

P/N 3109358_B 3-1

START UP / OPERATION

CONTROLLER OPERATION

The electronic controller is located in the cassette compartment. The controller comes factory set, and is ready for use. The front grille must be removed in order to access this control. When removing the grille for this operation or for condenser cleaning, care must be taken not to damage the display interface cable. It may be unplugged during this task.

1. Plug the merchandiser plug into its receptacle.

a. The controller display will illuminate. b. The interior light will illuminate.

2. After the control preprogrammed time delay of up to 6 minutes, the compressor and evaporator fan(s) will start if the control is calling for cooling.

3. The control will cycle the compressor but may also cycle evaporator fan(s) on and off determined by the Set-Point and Differential temperatures.

This cabinet temperature may reﬂect the refrigeration cycle of the Set-Point and it’s Differential. The most accurate temperature on a cabinets operation is to verify the product temperature.

Main Features:

• Panel-mounted

• Energy saving algorithms and optimised defrost control

• 8 preloaded applications

• Defrost at single / double evaporator

• Frame Heater

• Local network auto-conguration

• Direct load connection (up to 2 HP)

• Supply voltage control LVD

• Presence of an open collector output

a. The Set-Point is the adjustable preprogrammed temperature. b. The Differential is the non-adjustable pre programmed temperature. c. The Control is designed to read and display a cabinet temperature not a product temperature.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 18

3-2 electrical / refrigeration

CONNECTIONS

TERMINALS

OUT2 (1HP)

OUT3 (8A)

OUT1 (2HP)

15 16 17

OUT4 (8A)

RS485

OPTIONAL

12V

GND

LINK

{

GND D

12V

{

KEYB

* N.B.: analogue inputs PB1...PB5 can also be configured as Digital Inputs DI.

TERMINALS

1-2 NEUTRAL.

3 LINE. These are power supply terminals. 19-18 PB1 probe connection.

4 OUT2 Shared Terminal 21-20 PB2 probe connection.

5 N.O. OUT2 23-22 PB3 probe connection.

6 N.C. OUT2 23-24 PB4 probe connection.

7 OUT3 Shared Terminal 23-25 PB5 probe connection.

8 N.C. OUT3 27-26 Digital input (DI).

9 N.O. OUT3 28-29 LINK

10 OUT1 Shared Terminal 30-31 LINK

11 N.O. OUT1 32-33 Open Collector Output (OC).

12 Not Used A TTL Unicard/DMI/Multi Function Key connection

13 OUT4 Shared Terminal 34-35-36 RS485. Connection 1 - Supervision Gateway.

14 N.O. OUT4 37-38-39 RS485. Connection 2 - Supervision Gateway.

These are power supply terminals. 15-16-17

34 35 36 37 38 39

Connection to KDEPlus or KDWPlus external keyboard or ECPlus echo module.

. Connection 1 - local area network.

. Connection 2 - local area network.

ELIWELL

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 19

P/N 3109358_B 3-3

LED

RTN400 family controllers will also function even if a keyboard has not been connected. With KDEPlus or KDWPlus keyboards (which are the same and guarantee the same functions), the display will be as follows:

Meaning of LEDs:

No Icon LED Operation Meaning

Permanently on compressor on

Compressor

Defrost

Fans

Blinking Delay, protection or start-up blocked

OFF otherwise

Permanently on Defrost active

Blinking Activated manually or from Digital Input

OFF otherwise

Permanently on Fans active

OFF otherwise

Permanently on Energy Saving active

N.B.: When the instrument is powered on it performs a lamp test, during which time the display and LEDs will

Reduced SET / Economy

Alarm

°F readout

AUX

°C readout

flash for several seconds to check that they all function correctly.

Blinking Reduced setpoint active

OFF otherwise

Permanently on alarm active

Blinking Alarm acknowledged

OFF otherwise

Permanently on °F setting (dro =1)

OFF otherwise

Permanently on Aux output active and/or light on

Blinking Deep cooling on

OFF otherwise

Permanently on °C setting (dro = 0)

OFF otherwise

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 20

3-4 electrical / refrigeration

KDEPLUS BUTTONS

The KDEPlus keyboard has 4 keys, as shown in the illustration:

DOWN SET

Each key has a different function depending on whether it is:

• Pressed and released

• Pressed for at least 5 seconds

• Pressed and held at start-up

• Pressed in combination with another key.

KEYS

The following table summarizes the function of each key:

No Key

• Scrolls through menu items

• Decreases values

• Scrolls through menu items

• Decreases values

Pressed and released Press for at least 5 secs Start-up

Activates the Manual Defrost function (from outside menus).

Function can be configured by the user (from outside menus). (see parameter H32)

Action

STANDBY or ESC

---

• Returns to the previous menu

set

level

• Confirms parameter value

• Displays any alarms (if active)

• Opens Machine Status menu

• Confirms commands

Activates the Stand-by function (from outside menus).

Opens the Programming Menu (User and Installer parameters)

---

When pressed during start-up it enables the user to select the application to be loaded.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 21

P/N 3109358_B 3-5

SETPOINT: SETTING AND EDIT LOCK

To display the Setpoint value, press the

set

key to enter the “Machine Status” menu, then press the

set

key again when the “SEt” label is displayed. The Setpoint value appears on the display. To change the Setpoint value, press the and keys within 15 seconds. Press

set

to confirm the modification.

set

It is possible to disable the keypad on this device. The keypad can be locked by programming the “LOC” parameter appropriately. With the keypad locked, you can still access the “Machine Status” menu by pressing

set

to display the Setpoint, but you cannot edit

it. To disable the keypad lock, repeat the locking procedure.

DISPLAY PROBES VALUE

To display the value read by probes connected to the device, press the

set

key and enter the “Machine Status” menu, then press

the key again when one of the probe-related labels “Pb1...Pb5” press the

set

key again. The value measured by the associated

probe will appear on the display.

NOTE: The displayed value is read-only and cannot be modified.

SETPOINT: SETTING AND EDIT LOCK

To display the Setpoint value, press the label is displayed. The Setpoint value appears on the display. To change the Setpoint value, press the and keys within 15 seconds. Press

to confirm the modification.

set

key to enter the “Machine Status” menu, then press the

set

to display the Setpoint, but you cannot edit

DISPLAY PROBES VALUE

To display the value read by probes connected to the device, press the the key again when one of the probe-related labels “Pb1...Pb5” press the probe will appear on the display.

NOTE: The displayed value is read-only and cannot be modified.

KDEPLUS BUTTONS

The KDEPlus keyboard has 4 keys, as shown in the illustration:

set

key and enter the “Machine Status” menu, then press

set

key again. The value measured by the associated

key again when the “SEt”

KEY-ACTIVATED FUNCTIONS

All models have the UP key set to enable the “Manual Defrost” function. The DOWN and ESC keys can also be set to activate any other function required by the user. The parameters for configuring the two keys are:

• H11 = DOWN key configuration

• H33 = ESC key configuration

The values that can be set apply to both keys and the functions that can be activated are:

DOWN SET

H32/H33 value Function to enable

0 disabled 1 defrost 2 reduced set 3 Light 4 Energy saving 5 AUX 6 Stand-by 7 Deep cooling cycle 8 Start/end defrost

STANDBY or ESC

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 22

3-6 electrical / refrigeration

REVISION HISTORY

REV ECN DATE REVISION DESCRIPTION REV BY CHKD BY APPR BY

Sensor to Control Conguration

NEUTRO

12V

RTN400 SM

LINE

NEUTRO

OUT2

SENSOR TE MP

DEF ROST

ORANG E

222324

RS-485

MODULE

TTL

262728293031

GND

PB2

OPTIONAL

SENSO R TEMP

PB1

1 92 0

12V

GND

AIR

GRE EN

15 cm. MAX.

Orange

Green

KEYB

OUT2

OUT3

OUT1

OUT3

OUT1

OUT4

1 23456

789

11 12

Inside Back

3 INSIDE BACK CENTER OF COIL

Center of Coil

Orange Sheath

(Defrost Termination Sensor)

ORANGE SHEATH

(DEFROST TERMINATION SENSOR)

Green Sheath

BLACK SHEATH

(AIR SENSOR)

(Air Sensor)

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 23

P/N 3109358_B 3-7

GSVM-4060A

25° - 28° F (-3.8° to -2° C)

GSVM-4072A

27° - 30° F (-2.7° to -1.1° C)

GSVM-5272A

31° - 34° F (-0.5° to -1.1° C)

The controller controls refrigeration temperature. This is factory installed in the control panel. Adjust the control to maintain the discharge air temperature shown.

The factory defined setpoint is required to comply with energy regulations such as from the Department of Energy (DOE). If for some reason, colder tempertures are required for customer specific products the setpoint can be adjusted.

Discharge air temperatures should be measured at the center of the discharge honeycomb.

Defrosts are time initiated and temperature terminated. The defrost setting is factory set as shown above.

To ensure a thorough defrost, defrost must be terminated by the temperature termination setting — not by time.

The chart shown in the figure above describes the opeation of GSVM-A models under ambient conditions that do not exceed 75°F and Relative Humidity of 55%.

For the GSVM-A models, the controller parameters defined from the factory has a temperature differential of 19°F. Assuming Set-Point is 21°F and the Differential is 19°F. (Set-Point) 21°F + 19°F (Differential) = 40°F. The compressor will cycle off 21°F and back on at 40°F.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 24

3-8 startup / operation

LOAD LIMITS

Each merchandiser has a load limit decal. Shelf life of perishables will be short if load limit is violated.

Product will be degraded and may spoil if

allowed to sit in a non-refrigerated area.

At no time should merchAndisers be

stocked beyond the loAd limits indicAted.

do not block Air louvers.

STOCKING

Product should NOT be placed inside the merchandisers until merchandisers are at proper operating temperature.

Allow merchandiser 24 hours to operate before loading product.

Proper rotation of product during stocking is necessary to prevent product loss. Always bring the oldest product to the front and set the newest to the back.

Air dischArge And return flues must

remAin open And free of obstruction At All times to provide proper refrigeration and

air curtain performance. Do not allow product, packages, signs, etc. to block these grilles. Do not use non-approved shelving, baskets, display racks, or any accessory that could hamper air curtain performance.

Do not allow product to be placed outside of the designated load limits in the illustration at left. Air flows through the back wall, over the product on the shelves, across the face of the product (air curtain), and into the return air grille.

SOLAR THERMOMETER

GSVM-A models have solar thermometers. The thermometer is located at the top, front center of the merchandiser’s cabinet interior.

Temperature is displayed in Fahrenheit degrees as a standard option. Celsius is also an available option. The thermometer may be replaced if it becomes damaged.

To replace: remove the two screws securing the thermometer to its mounting bracket. Remove the sensing element from the clip, and install the new thermometer in reverse order.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 25

P/N 3109358_B 3-9

SHELF MAXIMUM WEIGHT LIMITS

Hussmann merchandiser shelves are designed to support the maximum weight load limits as indicated in the table below.

Exceeding these maximum weight load limits may cause damage to the shelf or shelves, damage to the merchandiser, damage to store products, and potentially create a hazardous condition for customers and staff. Exceeding the indicated maximum weight load limits constitutes misuse as described in the Hussmann Limited Warranty.

GSVM-4060A has two standard shelves for product display. The 13 in. shelf should be positioned above the 15 in. shelf. Models GSVM-5272A and GSVM-4072A have an additional standard 13 in. shelf that is also to be positioned above the 15 in. shelf.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 26

3-10 startup / operation

NOTES:

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 27

P/N 3109358_B 4-1

MAINTENANCE

Solvent, oil or acidic based cleaners on any interior surfaces.

To reduce the risk of fire, electrical shock or injury when cleaning this merchandiser:

• Unplug the merchandiser before cleaning;

• Keep all liquids away from electrical and electronic components;

• Do not use any mechanical device or other means to speed the defrost process, except as recommended by the manufacturer.

CARE AND CLEANING

Long life and satisfactory performance of any equipment is dependent upon the care it receives. To ensure long life, proper sanitation and minimum maintenance costs, these merchandisers should be thoroughly cleaned, all debris removed and the interiors washed down, weekly.

Do not use high pressure water hoses.

DO NOT flood merchandiser with water.

never introduce wAter fAster thAn the

wAste outlet cAn remove it.

Self contained models empty into an evaporation pan that will overflow if too much water is introduced during cleaning.

Do Use:

Remove the product and all loose debris to avoid clogging the waste outlet. Store product in a refrigerated area such as a cooler. Remove only as much product as can be taken to the cooler in a timely manner.

Exterior Surfaces

The exterior surfaces must be cleaned with a mild detergent and warm water to protect and maintain their attractive finish. never use

AbrAsive cleAnsers or scouring pAds.

Interior Surfaces

The interior surfaces may be cleaned with most domestic detergents, ammonia based cleaners and sanitizing solutions with no harm to the surface. Self contained models empty into a limited capacity evaporation pan, which will overflow if excess water is used in cleaning.

DO NOT Use:

Abrasive cleansers and scouring pads, as these will mar the finish or coarse paper towels on coated glass. DO NOT use ammonia-based cleaners on acrylic parts.

Product will be degraded and may spoil if

allowed to sit in a non-refrigerated area.

Disconnect electrical power before cleaning.

Thoroughly clean all surfaces with soap and hot water. do not use steAm or high wAter

pressure hoses to wAsh the interior.

these will destroy the merchandisers’

sealing causing leaks and poor performance.

Lift hinged fan plenum for cleaning. Hook chain in rear panel to secure plenum during cleaning. Be sure to reposition the fan plenum after cleaning merchandiser. Take care to minimize direct contact between fan motors and cleaning or rinse water.

Allow merchandisers to dry before resuming operation. After cleaning is completed, turn on power to the merchandiser.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 28

4-2 maintenance

CLEANING DISCHARGE HONEYCOMB

Discharge air honeycombs should be cleaned every six months. Dirty honeycombs will cause merchandisers to perform poorly. The honeycombs may be cleaned with a vacuum cleaner. Soap and water may be used if all water is removed from the honeycombs cells before replacing. Be careful not to damage the honeycombs.

1. Using a flat object such as a screw driver, compress the honeycomb and remove it from its retainer.

2. Clean and dry the air honeycombs.

CLEANING STAINLESS STEEL SURFACES

Use non-abrasive cleaning materials, and always polish with grain of the steel. Use warm water or add a mild detergent to the water and apply with a cloth. Always wipe rails dry after wetting.

Use alkaline chlorinated or non-chlorine containing cleaners such as window cleaners and mild detergents. Do not use cleaners containing salts as this may cause pitting and rusting of the stainless steel finish. Do not use bleach.

CLEANING SOLAR THERMOMETER

GSVM models have solar thermometers. The thermometer is located at the top, front center of the merchandiser’s cabinet interior.

To clean the thermometer:

1. Remove the two screws securing the thermometer to its mounting bracket. Remove the sensing element from the clip

2. Use non-abrasive cleaning materials and a mild detergent to clean thermometer.

3. After cleaning, replace in reverse order. Damaged honeycombs must be replaced.

DO NOT FLOOD!

Use only enough water necessary to clean

surface. Water must not drip down the case!

Never use ammonia based cleansers, abrasive

cleansers, or scouring pads.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

3. Be sure to wipe the element clean of any residues.

Do NOT use HOT water on Cold glass Surfaces.

This can cause the glass to shatter and could

result in personal injury. Allow glass fronts, to

warm before applying hot water.

Page 29

P/N 3109358_B 4-3

CLEANING UNDER DISPLAY PAN

Remove all product from the merchandiser and place in cooler. Always disconnect electrical power before cleaning.

1. Remove the display pan.

2. Use non-abrasive cleaning materials and a mild detergent to clean display pan.

3. Wipe down the insides of the merchandiser with a mild detergent, and replace display pan. Allow merchandiser to pull down in temperature before loading product.

Fan

CLEANING EVAPORATION PAN

GSVM-4060A GSVM-4072A/5272A (STANDARD)

The condensate water outlet for self contained models empties into a limited capacity evaporation pan.

Debris or dirt accumulation inside the condensate evaporation pan or on the heater coil will reduce the pan’s evaporation capacity and cause

premature heater failure. The evaporation pan waste water will overflow and spill onto the floor if the heater is not properly operating.

Remove accumulated debris from the evaporation pan. Wipe down heater coil with a cloth and warm water. Be sure to remove any dirt, debris or liquids from the heater coil.

Water introduced during cleaning will cause the evaporation pan to overflow.

Merchandiser with Display Pan removed

Evaporation Pan is Hot!

and poses risk of bodily injury – Always Wear gloves and protective eye wear when servicing. Turn off evaporation pan heater, and allow pan to cool.

SHUT FANS OFF DURING

CLEANING PROCESS.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 30

4-4 maintenance

CLEANING COILS

Condenser coils should be cleaned at least once per month. Additional cleaning may be needed depending on the operational environment

. A dirty condenser blocks normal airflow

through the coils.

Airflow blockage increases energy consumption and reduces the merchandiser’s ability to maintain operating temperature.

To clean the coils, use a vacuum cleaner with a wand attachment and a soft (non-metallic) brush to remove dirt and debris. Do not bend coil fins. Always wear gloves and protective eye wear when cleaning near sharp coil fins and dust particles.

ICE in or on the coil indicates the refrigeration and defrost cycle is not operating properly. Contact an authorized service technician to determine the cause of icing, and to make adjustments as necessary. To maintain product integrity, move all product to a cooler until the unit has returned to normal operating temperatures.

REMOVING SCRATCHES FROM BUMPER

Most scratches and dings can be removed using the following procedure.

1. Use steel wool to smooth out the surface area of the bumper.

2. Clean area.

NEVER USE SHARP OBJECTS AROUND COILS. Use a soft brush or vacuum brush to clean debris from coils. Do not puncture coils!

Do not bend fins. Contact an authorized service technician if a coil is punctured, cracked, or otherwise damaged.

3. Apply vinyl or car wax and polish surface for a smooth glossy finish.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 31

P/N 3109358_B 4-5

Record starting date

Store Name and Number

Store Address

Unit Model Number

Unit Serial Number

Contractor/Technician

Check in with store manager, record any complaints or issues

Lookunitoverfor anydamage, vibrationsorabnormalnoise.

Confirm refrigerant lines properly are secured and not touching or rubbing other lines, wires or frame work.

Verify fan motors and motor mounts are tight.

Confirm fan blade/s are tight and not rubbing or hitting.

Check all electrical wiring make sure it is secured and not on

any sharp edges or hot lines.

registers,fans, and doors etc.

Check for water leaks.

base cleaner. Rinse off any cleaner residue.

Clean discharge air honeycombs or grilles. Do not use anacid base cleaner. Rinse off anycleaner residue.

Clean condenser coil/s and fan blade/s. Do not use an acid base Cleaner. Rinse off anycleaner residue.

Clean condensate drain pan and drain line.

Record condenser air inlet temperature

Record defrost heater voltage and amp draw.

Record anti-sweat heater voltage and amp draw.

Record unit discharge air temperature.

Manual for proper controller operation.

Self-Contained Refrigeration Equipment Maintenance Check List

* * * * * Warranty does not cover issues caused by improper installation or lack of basic preventative maintenance. * * * * *

Technician

PMdate

PMactivity-For visual inspectionitems,denote"okor

complete" in thecolumn to right when PM has been

performed. For measured data requested, recorddata requested inthe appropriate column to the right)

they have with unit.

Verify unit is level side to side and front to rear.

Make sure all electrical connections, factory andfield, are tight.

Verify ele ctric al connections at lamps are they secure and dry.

Check for and replace any frayed or chaffed wiring.

Check for air disturbances externall to the unit. Heat and air

Clean evaporator coil/s andfan blade/s. Do not use an acid

Verify condensate drain lines are clear andfunctioning.

Record voltage reading at unit with unit off?

Verify condenser and evaporator fans are working.

Quarterly

Semi-

Annually

Q3 Q4

Record condenser air outlet temperature

Is condenser air inlet or air exhaust restricted or recirculating?

Verify there are no visual oil or refrigerant leaks. Record voltage reading with unit running. Record compressor ampdraw.

Record case product temperature.

Record unit return air temperature. Record ambient conditions around unit (wet Bulb temperature

and dry bulb temperature).

Check product loading, do not load beyond the units load limits.

Verify clearances on sides/back of unit .

Check unit controller for proper operation. See controller or 1/0

Confirm door switches function.

Verify unit doors and lidswork and are sealed correctly. Verify that all the panels, shields and covers are inplace.

Technician Notes:

Form HSCW03 Rev-29 OCTOBER13

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

P/N 0525210_C

GSVM-A Open Vertical Merchandisers

Page 32

4-6 maintenance

NOTES:

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 33

P/N 3109358_B 5-1

SERVICE

REPLACING FAN MOTORS AND BLADES

Should it ever be necessary to service or replace the fan motors or blades be certain that the fan blades are reinstalled correctly.

The blades must be installed with raised embossing (part number on plastic blades) positioned as indicated on the parts list.

For access to these fans:

1. Remove product and place in a refrigerated area. Turn off power to the merchandiser.

2. Make sure there is no voltage in the refrigerator. Remove front grille to have acess to the machine compartment.

3. Remove condensing unit screws. (Fig A).

4. Slide out the condensing unit (Fig B). Be careful using the condesing unit plate to pull out the condensing unit. Make sure not to stress or interfere with other parts.

5. Disconnect condenser motor harness.

6. Release screws to remove condenser fan assembly (Fig. C).

7. Release motor screws to get to motor / blade assembly (Fig. D).

8. Change the failed part.

9. If the only damaged part is the motor, remove blade.

10. Reverse the process and make sure

everything is in place.

Slide out condensing

unit tray by the handle as

indicated by the label.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 34

5-2 service

REPLACING EVAPORATION PAN HEATER

For access to these fans:

1. Remove product and place in a refrigerated area. Turn off power to the merchandiser.

2. Make sure there is no voltage in the

refrigerator.

3. Remove front grille to acess the machine compartment.

4. Remove condensing unit screws (Fig. A).

5. Slide out the condensing unit (Fig. B). Be careful using the condesing unit plate to pull out the condensing unit. Make sure to not stress other parts.

6. Disconnect heater from control box.

7. Remove heater clips to allow heater to be removed (Fig. C).

8. Change the failed heater.

9. Reverse the process and make sure

everything is in place.

REMOVE ELECTRICAL

HEATER FROM BOTH

CLIPS

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 35

P/N 3109358_B 5-3

REPLACING FOOD COMPARTMENT

FAN MOTORS AND BLADES

For access to these fans:

1. Remove product and place in a refrigerated area. Turn off power to the merchandiser.

2. Make sure there is no voltage in the refrigerator.

3. Remove step shelf in order to access the

evaporator.

4. Disconnect evaporator fan motor harness for each motor.

5. Remove screws (3 on each side, 6 total) to remove evaporator cover Fig A

6. Once evaporator cover is removed, remove plenum / fan assembly.

7. Remove evap. fan motor screws (4 x motor) to get motor / blade assy. (Fig B). In total we have 8 screws to releases 2 motors.

8. Change the failed part.

9. If the only damaged part is the motor,

remove blade.

10. Reverse the process and make sure

everything is in place.

Figure A. Remove screws aaching cover to fan plenum.

Figure B. Screws aaching plenum bracket to fan assembly.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 36

5-4 service

LED FIXTURE REPLACEMENT

Shelf LED fixtures are held in place by magnets. Pull the fixture down firmly to release disconnect cord from receptacle on the rear wall.

Product will be degraded and may spoil if

allowed to sit in a non-refrigerated area.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 37

P/N 3109358_B 5-5

TROUBLESHOOTING GUIDE

PROBLEM

Compressor will not start. (no noise)

Compressor will not start;

cuts out on overload.

PROBABLE CAUSE

1. Power disconnected

2. Blown fuse or breaker

3. Defective or broken wiring

4. Defective overload

5. Defective temperature control

1. Low voltage

2. Defective compressor

3. Defective relay

4. Restriction (pinched cap tube)

5. Restriction (moisture)

6. Condenser blocked with dust and dirt

SOLUTION

1. Check service cord or wiring connection

2. Replace fuse or reset breaker

3. Repair or replace

4. Replace

5. Replace

1. Cabinet voltage must not be more than 5% below rating

2. Replace

3. Replace

4. Repair or replace

5. Leak check, replace drier evacuate and recharge

6. Clean condenser

Warm storage temperature

Compressor runs continuously; product too warm.

Compressor runs continuously; product too cold

7. Defective condenser fan motor

1. Temperature control not set properly

2. Short or refrigerant

3. Cabinet location too warm

4. Refrigerant over-charge

5. Low voltage, compressor cycling on overload

1. Short of refrigerant

2. Inefficient compressor

3. Coil iced up

1. Defective control

2. Control sensing element not in positive contact

3. Short on refrigerant

7. Replace

1. Modify controller set point to a colder value.

2. Leak check, replace drier evacuate and recharge

3. Move to cooler location or correct excessive heat source

4. Purge system, evacuate and recharge

5. Compressor voltage must not be more than 5% below rating.

1. Leak check, replace drier, evacuate and recharge

2. Replace

3. Force manual defrost

1. Replace

2. Assure proper contact

3. Leak check, replace drier evacuate and recharge

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 38

5-6 service

TROUBLESHOOTING LIGHT GUIDE

PROBLEM

Lights won’t start

Lights flicker

GSVM-A ACCESSORIES

SOLUTION

1. Check light switch

2. Check continuity to power supply

3. Check voltage

1. Light bar replacement may be necessary

2. Check voltage

The following is a description of the various accessories available for the GSVM-A.

Caster Kit — Consists of 5 in. braking casters, which screw in to the standard threaded holes in the four corners under the cage occupied by the standard leg levelers. The kit will add 5 5/8 in. of height to the case.

Leg Kit — The legs also go into the same holes as the standard levelers, which will have to be removed. The legs are adjustable and will add 5 5/16 in. to the height of the case. The skirt kit requires the use of these legs.

Four-sided Skirt Kit — This is a four-sided skirt that encloses the open area under the merchandiser when the leg kit is used. The skirt kit clamps to the legs.

Wrap-Around Bumper Kit — This bumper replaces the standard front bumper and wraps around both sides of the merchandiser at the standard height of 22 inches to the centerline of the 2 1/4 in. wide bumper.

Colored Accent Panel — This panel can be (a.) the top front panel over the product, (b.) the panel behind the bumper, or (c.) the access panel below the bumper panel, or any combination of these.

Shelf end Trim Kit — Consists of four painted steel ends for the standard 13 in. and 15 in. shelves. This trim conceals and protects the exposed ends of the shelves. The trim kit attaches by two snap fasteners supplied with each trim piece for the GSVM-4060A model.

P/N 3109358_B U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com

Page 39

P/N 3109358_B 5-7

Shelf Upslope Tilt Adapter Kit — This kit consists of four zinc coated wire adapters to increase the two standard shelves, upslope from 1 1/2º to 6º.

Price Tag Molding Kit — This kit consists of aluminum price tag molding for the standard shelves. Price tag moulding will hold both 1 in. and 1.235 in. standard price tags. (Note that the standard shelves accept 1.235 in. tags.)

Wire Product Stop Kit — This kit consists of a 2 in. high chrome plated open wire stops for the standard shelf. This stop is mounted under tension and should not be confused with the wire front in the partition kit.

Wire Partition Kit — This is a free-standing wire system, which attaches to the standard shelves, and consists of a wire front, (different from the product stop) two wire sides and two partitions from the front to back, all chrome plated and 3 inches high.

Wire Basket Kits — One kit is available to replace the top 13 in. shelf or shelves, another is available to replace the bottom 15 in. shelf. Each kit consists of a wire basket, two brackets, and two dividers, which could also be used as ends. These parts are zinc plated. The baskets have an 8 in. high back and a 4 in sloped front.

Wire Basket Dividers — These are additional dividers, which can be with the wire baskets kit to obtain additional partitioned areas in the baskets.

Additional Lighted Shelf — This consists of an additional 13 in. lighted shelf that can be positioned between the two standard shelves. It is the same construction as the top standard 13 in. shelf.

Wire Cross Divider — This is a 3 inch high and 4 inch-long divider that could be ordered to be used with the wire partition kit above.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

GSVM-A Open Vertical Merchandisers

Page 40

To obtain warranty information

or other support, contact your

Hussmann representative.

Please include the model and

serial number of the product.

Hussmann Corporation, Corporate Headquarters: Bridgeton, Missouri, U.S.A. 63044-2483 01 October 2012