Hussmann GSVM User manual

Operating and Installation
Instructions
MODEL: GSVM – Self Contained Medium
Temperature Cases for Dairy,
Beverages, and Deli Products
OII-GSVM
January2005

2
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

3
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.

4
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
g
g
rilles,
fans, and open doors could affect its
operation.
The GSVM4060 and 4072 have
front condenser air intake and dischar
g
e.
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
y
raisin
g
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.

5
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

6
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
y
important for the safet
y
of
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
y
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

7
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
loading.

8
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

9
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

10
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.