Hussmann GSVM User manual

Operating and Installation

Instructions

MODEL: GSVM – Self Contained Medium

Temperature Cases for Dairy,

Beverages, and Deli Products

OII-GSVM

January2005

TABLE OF CONTENTS

Page

Introduction 4

Inspection 4

Location and Clearance 4

Skid 4

Leveling 5

Sealing 5

Access Panel Removal 5

Legs 5

SerialPlate 5

Air distribution and Product Loading 6

Power Requirements 6

ElectricalBox 6

PowerSwitch 6

Defrost Time Clock 6 & 7

Connections 7

Drains 7 & 10

Dimensions 8

Electrical 8

BTUCapacity 8

Shelving Maximum Weight Capacities 8 & 9

Temperature Control 9

CondensingUnit 10

Shelves 10

Thermometer 10

Lighting 10

LightSwitches 10

Ballasts 11

Cleaning Exterior, Interior, Stainless Steel Surfaces 11

TABLE OF CONTENTS CON’T

Page

Refrigeration 11

LeakTesting 12

Evacuation 12

Temperature Control 13

Evaporator Fan Motors 13

Trouble Shooting Charts 14 – 16

GSVM Accessories 16 – 17

Warranty and Parts Information 17

Wiring Diagrams 18 – 21

This GSVM case was manufactured in Gloversville, New York. Our phone #’s are (518)

725-0644 for New York State residents and our toll free #800-753-7790 for outside New

York – should you have further questions.

INTRODUCTION –

The Hussmann Model GSVM open

vertical merchandiser offers versatility in

the display of medium temperature (35-

41ºF) products such as diary products,

prepared salads, pizza and fresh entrees

that are pre-chilled in a cooler.

So that you can realize maximum

benefit from this fine piece of equipment

we urge both you and your installer to

carefully read and follow this brief set of

instructions prior to installation of the

equipment.

INSPECTION –

The equipment has been skidded

and crated prior to shipment from the

factory. It is the carrier’s responsibility to

deliver it to you in good condition until

such time as you sign for it.

Upon receipt of the cabinet,

examine the packaging for damage. If the

packaging is damaged, make specific

notation on the delivery ticket as to the

location and extent of damage prior to

signing for the piece.

Carefully remove packaging and

examine the cabinet for damage. If

damage is found, contact the delivering

carrier immediately and request that his

agent prepare an inspection report for the

purpose of filing a claim. THIS IS YOUR

RESPONSIBILITY, NOT THE

FACTORY’S.

Save all packaging materials and

move the cabinet as little as possible prior

to inspection.

LOCATION and CLEARANCE –

It is important that careful

consideration be given to locating the

cabinet away from an area where direct

sunlight would shine into the fixture, or

where drafts from air conditionin

rilles,

fans, and open doors could affect its

operation.

The GSVM4060 and 4072 have

front condenser air intake and dischar

A minimum distance of two feet must be

left open in front of the case so that air

discharge and intake to the condensing

unit is not obstructed.

The GSVM5272 model requires a

5" minimum clearance behind the case

and clear above the case since it has

straight through condenser air flow.

Brackets are provided for field

attachment to obtain the 5" spacing.

SKID –

The skid should be left on the

cabinet until it is near its final location.

The skid provides protection for both case

and floor.

The skid is removed b

raisin

one

end of the case approx. 6", block securely

and remove the 2 skid bolts on the raised

end – then screw back into the holes 2 leg

levelers.

Theprocedure is repeatedon the op-

posite end. When the leg levelers are in

place, the case may be slid off the skid and

placed in its final location.

LEVELING –

The cabinet must be leveledproperly

to insure full drainage of condensate water

from the evaporator coil. Level the case

from front torear and end toend. Stan-

dard levelers,packed inside the case, or op-

tional legs canbe provided for this purpose.

SEALING–

Once the case is properly leveled, the

case shouldbe sealed to the floor as shown

in the following drawing, using an NSF ap-

proved material such as General Electric

RTV-102 silicone sealer or equivalent.

ACCESS PANEL REMOVAL –

The louvered access panel on the

lower front of the case provides access to

the condensing unit, electrical box and con-

densate pan. Remove panel by removing

screw at bottom and lifting up and pulling

forward.

DRAINS –

Remote draining is not required in

self-containedmodels. The condensate

water from the evaporator drains out

through the bottom of the cabinet,

through a copper trap attached to the un-

derside and into thecondensing unit com-

partment to a heated condensatepan.

Until this trap gets filled with wa-

ter from the initial defrost, there may be a

small frost buildupin the coil area on

startup, which should disappear after the

firstdefrost. The pan uses athermistor to

sense the presence of water in the pan and

adjusts the amount of heat required to

evaporate thewater.

LEGS (OPTIONAL)-

If required by Health Inspectors

the levelers can be removedand replaced

with NSF Approved legs to raise the case 6

inches for cleaning purposes. An optional

skirt kit can be providedto clip on to the

legs.

SERIAL PLATE –

The serial plate is located onthe in-

terior top wall of the cabinet towards the

left end. It contains all pertinent informa-

tionsuchas model, cabinet serial number,

amperage rating, refrigerant type and

charge, etc. This information will be

needed toinstall, service, or order parts

for this piece of equipment.

Silicone

Sealant

Floor

AIR DISTRIBUTION and PRODUCT

LOADING –

This cabinet has a forced-air

circulation system. Air flows through the

back wall over the product on the shelves,

as well as out the honeycomb diffuser

located above the product, across the face

of the product (air curtain) and into the

return air grill.

Do not load product so that it

extends over the shelf edges or over the

return air grille.

POWER REQUIREMENTS –

The GSVM Models are equipped

for operation on a 115/60/1 power supply.

See chart in specifications for

requirements.

It is ver

important for the safet

both you and your customer to have each

circuit properly grounded. A qualified

electrician should perform all wiring in

accordance with the National Electrical

Code and/or all local codes. Separate

circuits are recommended for each case in

order to prevent product loss due to

overloading or malfunction of other

equipment on the same circuit. For proper

operation of equipment, voltage as

measured at the compressor must not var

more than 5% from the cabinet serial plate

rating. If either a high or low voltage

condition exists, contact your electrician,

local power company, or equipment

manufacturer.

ELECTRICAL BOX –

The electrical box is located behind

the louvered access panel. The box is

capable of sliding out for service after the

hold down screw is removed.

The box contains the power switch

and defrost time clock.

POWER SWITCH –

The main power switch is located

behind the front louvered access panel on

the side of the electrical box. This power

switch controls all power to the case. THE

CABINET POWER SWITCH MUST BE

IN THE OFF POSITION BEFORE

STARTING ANY CLEANING OR

SERVICE WORK ON THE

EQUIPMENT.

DEFROST TIME CLOCK –

The time clock, located in the

electrical box, provides a definite off-time

so that the evaporator will clear itself of

frost.

The clock is provided with pins to

initiate defrost. The failsafe setting sets

the length of defrost (from 2 minutes

minimum to 110 maximum).

The clock is factory pre-set for 3

defrosts (at 6 a.m. , 2 p.m. and 10 p.m.)

on the 4060 and 4072 at 20 minutes

each. There are 4 defrost onthe 5272 (2

a.m., 8 a.m.,2 p.m., and 8 p.m.) at 30

minutes each

Additional defrost may be re-

quired for cases located inhigh humidity

or high usage cases. If possible, avoid

setting a defrost during the day, or peak

usage periods. THE CLOCK TIME

POINTER SHOULDBE SETTO THE

CORRECT TIME OF DAY WHEN

THE CABINETIS READY TO BE

STARTED.

Setting the timer – Extra pins are pro-

vided with the timer.

♦

Put pinin hole of dial face at the time

you wish the cabinet to defrost. Note

that there is an AM and PM section

on the dial face. Be sure the pin is

tight.

♦

Set the length of time for the defrost

(failsafe). Push down onthe adjust-

ment andslide it to the length of time.

Do not set thetime longer than60

minutes.

♦

Set thetime pointer to the proper

timeofdayandstartcabinet.

CONNECTIONS -

a. Check cabinet thoroughly forloose

nuts and bolts and electrical connec-

tions.

b. Inspect the refrigeration lines for any

visible damage or chafing.

c. Replace electrical box cover.

d. Replace the louvered access panel.

e. Start thecabinet and allow to pull

down to operating temperature before

SPECIFICATIONS –

DIMENSIONS

Exterior

Model Length Width Height

GSVM-4060 40" 30 5/8" 60"

GSVM-4072 40" 30 5/8" 72"

GSVM-5272 52" 30 5/8" 72"

ELECTRICAL

MODEL NO. Volts/Hz/Phase REFRIGERANT RUN FUSE POWER

TYPE AMPSAMPS CORD

GSVM4060 115/60/1 R-134a 15 20 YES

GSVM4072 115/60/1 R-134a 17 25 NO

GSVM5272 115/60/1 R-134a 20 25 NO

GSVM5272 115/60/1 R-404A 17.25 25 NO **

** The GSVM-5272 changed to R404A in January 2000. Check the Serial Plate to verify

the correct refrigerant.

Note: Applies to the GSVM4072 & 5272 Models Only-Drain Plumbing hookup

recommended. Optional condensate is available if there is no access to drain plumbing.

Condensate pan must be field installed and requires a dedicated 15 amp, 120-volt circuit.

See page 15 for optional drain pan specifications.

BTU CAPACITY

RATING TEMPERATURE ºF

BTU/HR EVAP COND AMBIENT

GSVM-4060 6200 20 110 90

GSVM-4072 6250 20 110 90

GSVM-5272 6300 20 110 90

Cabinets use R-134A or R-404A

SHELVING MAXIMUM WEIGHT CAPACITY (LBS) -

The following is a tabulation of the maximum evenly distributed weights that can be

applied on the respective shelves. They greatly exceed most normal food products that

could be displayed in the case

Flat 1 1/2

Upslope 17ºTilt 30ºTilt

Bottom Sheet Metal Area 250# N/A N/A

Stand. 13”/15” shelves 250# 250# 75#

Stand. 13”/15” shelves w/optional

upslope 6º adapters 125# N/A N/A

Optional Wire Baskets 200# 100# 30#

OPERATION and MAINTENANCE -

It is important that the two

previous sections of this installation

booklet have been read and followed

carefully before attempting to start up

the equipment.

A thorough inspection should be

made prior to start up to assure that

there are no loose nuts, bolts, electrical

connections or refrigeration lines

rubbing or chafing. Turn the power

switch to the ON position. ALLOW

system to reach normal operating

temp.prior to

loading any

product.

This cabinet

has a

forced-air

curtain that

flows over the

top of the

product.

See SHELVES for the special

loading instructions. Air flows out of the

honeycomb diffuser located above the

product, across the product, and into the

return duct. The honeycomb can be

removed for cleaning.

TEMPERATURE CONTROL –

Interior cabinet temperatures are

controlled through the use of a bulb and

capillary type temperature control. The

control is located in the electrical box.

The sensing bulb is mounted on the

top of the evaporator coil on the 4060 and

4072. On the 5272 it is located on the rear

wall behind the evaporator coil. Be sure

to disconnect power supply prior to any

service work on the control.

The control is factory pre-set

between 19º and 21ºF for the GSVM4060,

4072 and - 26º to 28ºF on the GSVM5272 to

maintain between 35º and 40ºF interior

cabinet average temperatures.

The differential is set at 8-10ºF or

alittle over halfway towards “MAX”.

Donot adjust lower or evap. icing will

occur. It can be adjusted to other desired

temperatures by turning the dial to the

corresponding dial face temperatures. The

indicated dial temperature will not directly

correspond to the actual cabinet tempera-

ture dueto the bulb location and depend-

ing on various conditions, a certain amount

of time lag will be noticed between the new

setting and the resulting temperature.

CONDENSING UNIT –

A regular program should be set up

for cleaning the fin-and-tube condenser.

Normally, this cleaning is required every3

to 4 months, but the individual store appli-

cation mayshorten or lengthenthis time

period. Dust anddirt accumulation can

cause serious efficiency loss.

Access is gained to the unit area by

removing the louvered grille. Before at-

tempting to slide out condensing unit you

must first remove the screws from the con-

denser unit baffles. The unit slides for-

ward to facilitate cleaning and for service.

Care should be taken when pushing the

unit back in, to insure that the pullout coil

does not become kinked or damaged in

someway. The baffle screws must bere-

placedafter sliding the condensing unit

back into position. Double check to make

sure the drain hoseis in the drainpan be-

fore putting the access grille back on. The

rear access panel is also removable if it is

necessary to work at the back of the case.

SHELVES–

The GSVM4060 cabinet is equipped

with 2 standardshelves for the display of

your product. The 13” shelf should be lo-

cated at the top and 15” shelfshould be lo-

cated below it. The GSVM5272 and 4072

has an additional 13” shelf as standard

which should be located above the 15”

shelfalso.

The shelves should be positionedso

they do not protrude into the front (top to

bottom) air curtain. Do not use deeper

shelves orallow product to protrude over

the shelves intothe air curtain.

THERMOMETER –

A solar thermometer is provided

thatregisters degrees ºF. The thermome-

ter is located in the front center.

A solar powered thermometer is

equipped with each cabinet. The ther-

mometer is located in the top front center

of the cabinet interior. Temperature is dis-

played in Fahrenheit degrees as standard.

Celsius display is available as an option.

The thermometer maybe replaced

by removing the two screws securing the

thermometer to is mounting bracket. Re-

move the sensing element from the clip.

Install the new thermometer in reverse or-

der.

To clean the sensing element of the

thermometer,follow the sameprocedure

as replacement. Cleaning of the element is

accomplished by using water and mild de-

tergent. Be sure to wipe the element clean

of any residues soproper temperatures are

displayed.

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