Hussmann EVM Installation And Service Instructions Manual
January 2006
INSTALLATION & SERVICE
INSTRUCTIONS
FOR
EVM MEDIUM TEMPERATURE MERCHANDISER
FOR
Diary, prepared salads, pizzas, and fresh entrees
First Call for help (US and Canada):
1-800-922-1919
Soporte Tècnico y Asistencia (Mèxico):
01-800-522-1900
For a Service Network Locator and other
Information visit us at
www.hussmann.com
select Worldwide Locations
HUSSMANN - GLOVERSVILLE
P/N OII – EVM
January 2006
TABLE OF CONTENTS
PAGE
INTRODUCTION, INSPECTION, LOCATION and CLEARANCE 2
SKID, LEVELING and SEALING 2
DRAINS 2
SERIAL PLATE 3
AIR DISTRIBUTION and PRODUCT LOADING 3
POWER REQUIREMENTS 3
ELECTRICAL BOX, POWER SWITCH, TIME CLOCK 4
CONNECTIONS 4
SPECIFICATIONS, DIMENSIONS, BTU CAPACITY 4
SHELVING, TEMPERATURE CONTROL, CONDENSING UNIT 5 – 6
THERMOMETER 6
LIGHTING, LAMP SWITCH, BALLAST 6 – 7
NIGHT COVER, CLEANING EXTERIOR 7
CLEANING INTERIOR, REFRIGERATION 7
LEAK TESTING AND EVACUATION 7 – 8
TROUBLE SHOOTING CHARTS 9 – 10
LIGHTING TROUBLESHOOTING 10
WARRANTY, PARTS / COMPRESSOR REPLACEMENT 11 – 12
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INTRODUCTION, INSPECTION, LOCATION and CLEARANCE
SKID, LEVELING and SEALING and DRAINS
Hussmann EVM model cabinets offer
maximum versatility in the display of medium
temperature prechilled products such as prepared salads, pizzas, fresh entrees, and dairy
products.
INSPECTION –
Upon receipt of the cabinet, carefully inspect the crating and equipment for damage. If
damage is found, note on the delivery receipt
where and how extensive the damage before
signing.
After removal of the crating, again inspect the cabinet for damage. If damage is
found, contact the delivering carrier and request
for an inspection and inspection report be made
for the purpose of filing a claim. Save as much
as the crating as possible and move the cabinet
as little as possible until after the inspection.
THIS IS YOUR RESPONSIBILITY
LOCATION and CLEARANCE –
It is very important that careful consideration be given to the cabinet location in the
store. Areas where direct sunlight would shine
into the cabinet, and locations where drafts from
air conditioning, open doors, and fans would
blow directly into the cabinet should be avoided.
The EVM cabinets have front air intake
and rear air discharge for proper air flow over
the condensing unit. A minimum distance of two
feet must be left open in front of the cabinet so
that air intake to the condensing unit is not obstructed.
In addition, a minimum of five inches clearance
behind the case and eighteen inches above the
case is required to allow for proper discharge of
air flowing over the condensing unit.
SKID –
The shipping skid should be left on the
cabinet until it is near its selected location in the
store. The skid provides protection for both the
cabinet and floor. The skid can be removed by
backing out the screws that are run through the
front and rear base rails into the skid. Once
these screws are removed, the cabinet may be
slid carefully off the skid.
LEVELING –
The cabinet must be properly leveled to
ensure full drainage of the water produced during the off and defrost cycles. Level the cabinet
from front to rear and end to end.
SEALING –
Once the cabinet has been installed and
properly leveled, it should be sealed to the floor
as shown in the following drawing, utilizing a
NSF approved material such as General Electric
RTV-102 silicone sealant or equivalent.
DRAINS
Remote draining is not required on selfcontained models. The condensate water from
the evaporator drains out through the bottom of
the cabinet, through a copper trap attached to
the underside of the condensing unit area, into
an electrically heated condensate pan. Until
–
PAGE 3
the trap gets filled with water, there may be a
small frost accumulation in the evaporator coil
area. This frost should disappear after the trap
gets filled with water, usually after the first defrost. The drains for the condensate water are
located in the front corners of the evaporator
coil area. These drains must be kept clear to ensure proper drainage of the condensate water.
SERIAL PLATE –
The serial plate is located on the interior
left hand end. It contains all pertinent information such as model, cabinet serial number, refrigerant type and amount etc. The information
on this plate is very helpful when servicing or
ordering replacement parts. This plate should
never be altered or removed for any reason.
AIR DISTRIBUTION and PRODUCT
LOADING –
This cabinet has a forced-air circulation
system. Air flows through the perforations in
the back wall over the product on the shelves, as
well as out the baffles located above the product,
across the face of the product and into the return air grill.
WHEN LOADING THE PRODUCT DO NOT PLACE IT SO
THAT IT EXTENDS OVER THE
SHELF EDGES OR OVER THE
RETURN AIR GRILL. IT IS
ALSO IMPORTANT NOT TO
PLACE THE PRODUCT TIGHT
AGAINST THE BACK PANEL.
THIS WILL RESTRICT AIR
FROM FLOWING OUT OF THE
PERFORATIONS AND OVER
THE PRODUCT.
POWER REQUIREMENTS –
The EVM3977 comes equipped with a
15A power cord, the EVM5277 comes with a
20A power cord. Under no circumstances
should the grounding prong on the cords be removed.
It is very important for the safety 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 cabinet in order to prevent product loss
due circuit overloading of malfunction of other
equipment which may be on the same circuit.
For proper operation of the equipment, voltage
measured at the compressor must not vary
more that 5% from the cabinet serial plate rating.
If either high or low voltage condition
exists, contact your electrician or local power
company. If service or maintenance is being
performed on the cabinet, make sure the power
supply to the cabinet is off before proceeding.
ELECTRICAL BOX –
The electrical box is located behind the
front access panel. Access to this box is gained
by removing this panel. The box may be slid
out for service after the hold down screw is removed. After servicing this screw should be put
back in the case.
PAGE 4
The box contains the power switch, defrost time clock and temperature control.
Power to the cabinet should be disconnected
before any service is performed on this box.
POWER SWITCH –
The main power switch is located in the
electrical box. This switch controls all power to
the case. This switch must be in the off position
before starting any cleaning or service work on
the equipment.
DEFROST TIME CLOCK –
The time clock which is 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 set for two defrost per day.
10 pm and 6 a.m at 20 minutes each. Extra pins
are provided in case there are more defrosts
required due to ambient conditions or heavy
usage.
If possible avoid setting the defrost during the day or at peak usage times.
When inserting the pin (s), note the AM/
PM sections on the dial face. After inserting
pins, make sure the time pointer is pointing to
the correct time of day. For optimum performance, do not exceed more than four defrosts in a
24 hour period.
CONNECTIONS –
Check all electrical and refrigeration
connections thoroughly for tightness. Make
sure the refrigeration tubing is not rubbing or
chafing against itself or other components.
Electrical connections should be tight.
Condenser fan motor blades should
spin freely without hitting anything. Install all
protective covers, start the cabinet and allow
to pull down to temperature before loading.
SPECIFICATIONS – DIMENSIONS
Model Length Width Height
EVM3977 39” 33” 77”
EVM5277 52” 33” 77”
ELECTRICAL
Model Refrg. Run Fuse
EVM3977 R-404A 8.5 15
48 oz. 13.5 15
EVM5277 R-404A
50 oz/
BTU CAPACITY
BTU/
Model HR Evap Cond Amb
EVM3977 4080 20 110 75-80
EVM5277 6300 20 110 75-80
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