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INTRODUCTION - 
 
 

Hussmann USL models are self-

contained, low temperature, vertical solid 
door reach-ins for the storage of ice cream 
and frozen foods. Design features include 
automatic defrost, efficient foamed in place 
non-CFC insulation, and balanced refrigera-
tion systems for energy saving performance. 
 
INSPECTION –  
 
 

Upon receipt of the cabinet, carefully 

examine the crating for damage.  If  the crate 
is damaged, make a note on the delivery 
ticket before signing.  Carefully remove ship-
ping crate and examine cabinet for 
“concealed damage.  If damage is found, con-
tact the delivery carrier immediately and 
have his agent prepare an inspection report 
for the purpose of filing a claim.  THIS IS 
YOUR RESPONSIBILITY. 
 
LOCATION –  
 
 

The USL low temperature, storage, 

self contained reach-ins are designed for 
back room storage applications of ice cream 
and frozen food products.  Location where 
drafts from air conditioning grille, fans and 
open doors that would blow into the case 
should be avoided. 
 
CLEARANCE –  
 
 

Because the condensing unit is located 

at the top of the cabinet, at least 12 inches of 
clearance should be allowed at the rear of the 
cabinet and at the top of the case.  This clear-
ance is necessary to provide free air move-
ment to and from the condenser for maxi-
mum operating efficiency. 
 

INSTALLATION and START-UP –  
 
SKID –  
 
 

The skid should be left on the cabinet 

until it is near the final location.  The skid pro-
vides protection for both the case and floor.  
The skid is removed by raising  one end of the 
case approximately six inches.  BLOCK  SE-
CURELY and remove the two skid bolts on the 
raised end.  This procedure is repeated on the 
opposite end.  When the skid bolts are re-
moved, the case may be slid off the skid. 
 
LEG INSTALLATION –  
 
 

After the case is near its final location 

and the skid has been removed, the NSF ap-
proved legs should be installed.  The legs are 
packaged inside the cabinet.  To install the 
legs, replace the tape and door blocks.  Raise 
one end of the cabinet approximately 8 inches, 
BLOCK SECURELY, and install two legs.  
The leg mounting plates are factory installed 
and contain a 1/2 x 13 tapped hole to match 
with the leg assembly.  The procedure is re-
peated on the opposite end.  With the cabinet 
legs installed, the cabinet should be positioned 
in its final location and leveled. 
 
 

The cabinet is leveled by turning the 

bottom section of each leg.  The self closing 
doors require the cabinet to be properly lev-
eled.  End to end leveling will make the doors 
close with uniform speed and tightness.  A 
slight pitch from front to rear is desirable.  
THE CABINET BACK SHOULD NEVER BE 
HIGHER THAN THE FRONT. 
 
TOP DECORATIVE PANEL REMOVAL –  
 
 

The top decorative panel is removed by 

sliding the panel up into the upper aluminum  
   

Summary of Contents for USL-2

Page 1: ...URE Solid Door Reach In for Ice Cream and Frozen Foods P N OII USL January 2006 First Call for help US and Canada 1 800 922 1919 Soporte T cnico y Asistencia M xico 01 800 522 1900 For a Service Netwo...

Page 2: ...apacities 4 General Upkeep Care and Cleaning Routine Maintenance 4 Power Switches Temperature Control 5 Thermometer Electrical Enclosure 5 Defrost Time Clock 6 Defrost Heater Thermostat and Replacemen...

Page 3: ...xi mum operating efficiency INSTALLATION and START UP SKID The skid should be left on the cabinet until it is near the final location The skid pro vides protection for both the case and floor The skid...

Page 4: ...for durability and ease of cleaning Care should be taken when loading the shelves with product Product on the highest level of shelves should not touch the evapora tor drain pan This pan gets warm du...

Page 5: ...ps Size Wt USL 2 15 0 20 amp 875 BTU CAPACITIES Rating Temps F BTU HR Evap Cond Amb USL 2 2280 20 110 90 During June 95 R404A refrigerant was phased into use on the USL 2 The refriger ant charge is 46...

Page 6: ...obably need resetting to reflect the proper case temperature Using a separate thermometer located on a shelf in the case compare this temperature to that on the case thermometer If the case thermomete...

Page 7: ...lowest usage Defrost is time initiated and tempera ture terminated If the thermostat should fail the timer is equipped with a failsafe set at 40 minutes that will allow defrost to terminate on time DE...

Page 8: ...rature Adjust the expansion valve as follows 1 Attach two sensing probes to the evapora tor one under the clamp holding the ex pansion valve sensing bulb and the other securely taped to one of the ret...

Page 9: ...g to the fol lowing procedure 1 Discharge the refrigerant nitrogen mixture allowing it to blow from the system as rapidly as possible into an empty cylinder Be sure that all service valves and solenoi...

Page 10: ...pres sor will start properly On start up the valve will hold the suction pressure at the desired setting until the suction pressure has dropped below the setting then the valve will open If it becomes...

Page 11: ...e air flow restriction 3 Defective condenser fan mo tor 3 Replace 4 Air or non condensable gas ses in system 4 Leak check change drier evacuate and recharge Warm storage temperatures 1 Temperature con...

Page 12: ...temperature con trol 4 Replace 5 Power disconnected 5 Check service cord or wir ing connections Compressor will not start cuts out on overload 1 Low voltage 1 Contact electrician 2 Defective compress...

Page 13: ...nd R404 KAAB 007E CAA Condenser Fan Motor EMS ESPL25EM1 Evaporator Fan Motor Morrill SPB5EM1 Light Ballast 8G3738W Incandescent Lamp GE 40A15 WARRANTY AND PARTS INFORMATION Please read carefully to as...

Page 14: ...s will not be shipped from the Hussmann factory They may be obtained from your nearest Copeland Wholesaler Your wholesaler will replace free of charge any compressor found to be defective within twelv...

Page 15: ......

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