Hussmann LBN, LBN-10, LBN-4, LBN-5, LBN-6 Installation And Service Instructions Manual

January 2006

INSTALLATION & SERVICE

INSTRUCTIONS

FOR

LBN MODELS

Low Temperature – Self Contained M erchandiser

For

Pre-Packaged Ice Cream, Ice Cream Novelties and Frozen Foods

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 – LBN

January 2006

TABLE OF CONTENTS

Page
Location – Clearance
Initial Set-Up
Skid 4
Leveling – Sealing 5
Access Panel Removal 5
Compressor 5
Electrical Connections 5
Serial Plate Information 6
Start – Up and Loading 6
BTU’s – Electrical – Dimensions 7

General Upkeep and Cleaning 8
Routine Maintenance 8

Operation and Maintenance
Power Switch 10
Temperature Control 10
Thermometer 10
Electrical Box 10
Defrost Time Clock 11
Defrost Thermostat 11
Defrost Heater Replacement 12
Lighting 13
Condensate Heaters 13
End Panel Heaters 13
Front Glass Heater and Replacement Procedure 14
Nose Heater 14
Condensate Heater Limit Thermostat 14
Refrigeration 15
Leak Testing 15
Evacuation 15
Operational Data 16
Refrigerant Control 16
Crankcase Pressure Regulator 16

Trouble Shooting 18
Light Problems and Solutions 20

2

TABLE OF CONTENTS

Con’t

Page
Accessories & Options
Countertop 21
Stainless Steel Top 21
Superstructure w/Lighted Canopy 21
Superstructure w/o Lighted Canopy 21
Product Shelf Kit 21
Bag Rack 21
Dial Thermometer 22
Lid Lock Kit 22
Caster Kit 22
Novelty Basket 22
Warranty
Ordering Replacement Parts 22
Warranty Parts Procedure 22
Compressor Replacement Procedure 23
Internal Leak Warranty Policy 23
Electrical Components Replacement List 25

3

The LBN series are low temperature, self-contained cabinets designed for
pre-packaged ice cream, ice cream novelties, and frozen food at below freezing
temperatures. Design features include non-heated glass lids; efficient foamed
in place non-CFC insulation, interior mirror reflectors, front-air discharge
condensing unit, (except LBN-10) and a balanced refrigeration system for
energy saving performance.

There are also a number of options available for the LBN series. See

ACCESSORIES & OPTIONS section in back of this booklet.

LOCATION – CLEARANCE

AND

INITIAL SET-UP and START-UP

AND

BTU’S – ELECTRICAL – DIMENSIONS

Upon receipt of the cabinet,
carefully examine the crating for
damage. If crate is damaged, make
a note on the delivery ticket before
signing. Carefully remove shipping
crate and examine the cabinet for
“concealed” damage. If damage is
found, contact the delivering
carrier immediately and have his
agent prepare an inspection report
for the purpose of filing a claim.

THIS IS YOUR RESPONSIBLILTY.

LOCATION

Avoid locating the cabinet where
direct sunlight would shine into the
fixture or where drafts from air
conditioning grills, fans, and open
doors could effect it operation.

Because the condensing unit is
located at the bottom of the
cabinet, a two (2) foot clearance
should be allowed in front of the
louvered access panel to provide
free air movement to and from the
condenser for maximum operating
efficiency.

The LBN-10 must also maintain a
two- (2) inch clearance at the rear
of the cabinet because, unlike the
other LBN models, it is not front
air discharge.

INITIAL SET-UP

SKID –

The skid should be left on the
cabinet until it is near its final
location. The skid provides
protection for both cabinet and
floor. The skid is removed by
removing the bolts holding the
cabinet to the base, then sliding
the cabinet off the skid. A “mule”
bracket is built in the end of the
cabinet base frame for this
purpose.

4

LEVELING - SEALING

Proper drainage of the evaporator
condensate water requires the
cabinet to be properly leveled. This
means left to right as well as front
to back.

Silicone Seal ant

Floor

Shimming under the cabinet base
frame may level the cabinet. A
slight pitch from front to back is
desirable. The cabinet back should
never be higher than the front.
Once level the cabinet should be
approved material such as General
Electric RTV-102 silicone sealer or
an equivalent.

ACCESS PANEL REMOVAL The louvered panel on the lower right front of the cabinet provides access to the condensing unit and electrical box.

There is also a back panel that
covers the rear of the condensing
unit compartment that can be
removed to again access to the back
of the compartment. The drain
trap should be filled with water.
This prevents warm air from
migrating back through the drain
to the evaporator coil. Failure to
fill the trap with water,

could
result in excessive frosting of the
evaporator coil.

Access to the trap is achieved by
removing the back panel that

covers the rear of the compressor
compartment .

On the LBN-10 this back panel is
a wire grill that allows the
discharge air to flow through the
condensing unit compartment.

Before removing this panel, make
sure the power supply to cabinet is
disconnected.

COMPRESSOR

The compressor is banded for

shipping. Remove the two bolts
holding the compressor bar in
place, then you can pull out the
condensing unit.

Cut the steel band, which holds
down the compressor during
shipping. The compressor should
now float freely on the mounting
springs. DO NOT LOOSEN NUTS.

ELECTRICAL CONNECTIONS

The LBN-4, 5, 6, 7 and 8 models
have a power cord attached to the
unit with a ground prong. Do not
remove the grounding prong under
any circumstances. The cord is
rated 115v/15 amp. The LBN-7,

5

and –8 also require a circuit
breaker or a time delay fuse rated
at 15 amps for the circuit being run
to them.

The LBN-10 requires conduit
connections of both 115v and 208­230v with an amperage rating of 15
amps for each circuit. Marked
leads are provided for these
connections in the field.
If wiring the LBN-10 to a “3-wire”
system is preferred, a 20amp, 208­230 v circuit needs to be provided.

See the diagram below concerning
a “3-wire” system.

All of these models are 60hz, 1ph.
If another voltage, hertz, or phase
is required, please consult the
factory.

IT IS VERY IMPORTANT TO
YOU AND YOUR CUSTOMERS
TO HAVE THE CABINET
PROPERLY GROUNDED. A
qualified electrician in accordance
with the National Electrical Code
and/or local codes should do the
electrical installation.

NOTE: Connecting this unit to
any electrical supply other than
specified on the serial plate will
void the warranty and may result
in serious damage to the unit. The
cabinet should be supplied with its
OWN service.

SERIAL PLATE INFO.

The serial plate is located on the
left-hand end of the case interior,
and a second one in the condensing
unit compartment. It has all the
pertinent information needed for
proper electrical installation. The
serial plate should not be removed
for any reason.

INITIAL START UP AND
LOADING

♦ Set the defrost timer for the

correct time of day, making sure
the defrost pins are secure in
the face of the clock. The LBN­4 through –8 models are
factory set for one (1) defrost
period in 48 hrs. @ 12 a.m. and
LBN-10 is factory set for one (1)
defrost period in 24 hrs. @ 12
a.m.

♦ Check the cabinet thoroughly

for loose nuts and bolts and
electrical connections. Inspect
the refrigeration lines for any
visible damage or chafing.

♦ Replace the louvered access

panel.

6

♦ Start the cabinet and allow to

pull down to operating
temperature before loading.

BTU CAPACITIES

RATINT TEMPS

o

F
BTU/HR EVAP COND AMB
LBN-4 2380 -25 110 90
LBN-5 2830 -25 110 90
LBN-6 3325 -25 110 90
LBN-7 3990 -25 110 90
LBN-8 4600 -25 110 90
LBN-10 5410 -25 110 90

ELECTRICAL

UNIT RUN FUSE SHIP
H.P. HZ/PH VOLTS AMPS SIZE WT.
LBN-4 ½ 60/1 115* 10.2 15 515
LBN-5 ½ 60/1 115* 10.2 15 585
LBN-6 ½ 60/1 115* 10.2 15 663
LBN-7 ¾ 60/1 115* 11/5 11+ 745
LBN-8 ¾ 60/1 115* 12.0 15+ 815
LBN-10 1 60/1 115 2.7 15 967
208-230 7.0 15
* 115V/15amp grounded power cord included
+ 15 amp time delay fuse or circuit breaker required

DIMENSIONS

Cu. Exterior Interior
Ft.
Cap. L W H L H W
LBN-4 9.5 48 1.2 31 ½ 39 ¾ 44 ¼ 21 26
LBN-5 13.2 60 31 ½ 39 ¾ 55 7/8 21 26
LBN-6 16.8 72 31 ½ 39 ¾ 67 7/8 21 26
LBN-7 20.5 84 31 ½ 39 ¾ 79 7/8 21 26
LBN-8 24.9 95 5/8 31 ½ 39 ¾ 91 ½ 21 26
LBN-10 31.8 118 7/8 31 ½ 39 ¾ 114 ¾ 21 26

7

GENERAL UPKEEP, CLEANING

AND

ROUTINE MAINTENANCE

CARE AND CLEANING

To insure good sanitation,
appearance, and minimum
maintenance, the cabinet should be
cleaned and washed regularly as
use demands. Clean with mild
detergent and warm water. DO
NOT USE AN ABRASIVE

condenser shroud is removable.
Slit the upper corners of the
gasket on the front of the
condenser, remove the screws
holding the shroud top into the
shroud ends, and remove the
top to gain full access to the
condenser.

CLEANER OR STEEL WOOL, AS
THEY WILL MAR THE FINISH.

ROUTINE MAINTENANCE

♦ Under normal conditions, after

the cabinet is installed and
running, very little
maintenance should be
required. However, the
following list of housekeeping
practices will assure trouble­free operation.

♦ Check operation of condenser

fan motor. Fan blade must turn
freely.

♦ The condenser is of bare-tube

construction on the LBN-4
through –8 to reduce the
amount of maintenance
required, and fin-and-tube
construction on the LBN-10. To
keep the cabinet at top
efficiency, periodic cleaning is
required. To ease in the
cleaning of the bare-tube
condenser, the top of the

♦ The glass lids are made of

tempered, non-heated glass.
The lids slide up to open and
can be locked open for product
loading. The lids are not self­closing. The lids will close
easily by hand and with the
assistance of gravity. There is
a nylon glide on the edge of the
glass to assist in closing. The
lid tracks must be cleaned
periodically to allow the lids to
close freely.

♦ Manually defrost cabinet as

usage dictates. The LBN series

8

are gravity-cooled cabinets. The
sidewalls have refrigeration
tubing in them to cool the lower
portion of the interior and there
is an upper evaporator that
drops cold air down onto the
product. The upper coil is
equipped with defrost heaters
that defrost the coil. THE

SIDE WALLS OF THE
CABINET WLL BUILD UP
FROST AND ICE ON THEM
OVER TIME AND DO NEED
TO BE MANUALLY
DEFROSTED AS USAGE
AND BUILD UP DEMANDS.

♦ The interior of the cabinet has

load line markings showing how
high product can be loaded.
Loading product above these
lines is above the refrigerated
area in the case and will
adversely affect the product in
this area.

♦ Clean the cabinet with mild

detergent. This will insure good
sanitation, and minimize
maintenance. Never use an
abrasive as this could mar the
finish.

9

OPERATION

MAINTENANCE

POWER SWITCH

The power switch is located at the
electrical box that is behind the
front, louvered access panel. A slot
in one of the louvers allows access
to the switch. The switch will shut
off all power to the cabinet on the
LBN-4 through –8 and shut off the
208-230 circuit on the LBN-10.

TEMPERATURE CONTROL

♦ The temperature control is

located between the electrical
box and condenser behind the
bottom louvered access panel.
The temperature control does
not have an “OFF” position.
Turn the adjustment knob on
the face of the control to make
adjustments. Turning it
clockwise will give colder
temperatures while counter­clockwise will give warmer
temperatures. It is not good
practice to operate the case with
the temperature control at the
coldest position, as it will
shorten compressor life.

♦ The control is factory set for

approximately –15

o

F. The
temperature should be checked
with a thermometer other than
the cabinet thermometer after it
is running to insure that the
cabinet is running at the proper
temperature for the product.
Ice cream should be kept at –

AND

o

10

F to –15oF. Frozen food

should be kept at 0F to –5oF.

♦ If it should become necessary to

replace the temperature control,
the sensing control capillary
will need to be pulled out of the
control well. When doing this,
mark the length of capillary
pulled out of the control well so
that the same amount can be
replaced (approx. 19 – 19 ½”),
otherwise the temperature
control will not react properly
and cabinet temperature will be
adversely affected.

THERMOMETER

The cabinet has a thermometer
located on the left-hand end of the
nose screen that is just below the
upper mirror reflector and light
fixture. The thermometer is a
“pencil” type and reads from –40

o

F
to +80oF on 2o increments. To
replace, remove the two screws and
install the replacement.

ELECTRICAL BOX

The electrical box contains the
defrost time clock, terminal boards,
and power switch. The box is
capable of sliding out for servicing
convenience and access is gained
by removing the cover. THE

CABINET SUPPLY BREAKERS

10

SHOULD BE DISCONNECTED
BEFORE REMOVING THE
ENCLOSURE COVER.

DEFROST TIME CLOCK

♦ The timer is factory pre-set for

one (1) defrost cycle per 48
hours on the LBN-4 through –8
and for one (1) defrost cycle per
24 hours on the LBN-10 at
12:00 a.m. with a 40 minute
failsafe.

♦ The timer must be adjusted to

the proper time of day when the
cabinet is started. The timer is
adjusted by turning the knurled
adjustment knob in the center
of the dial face counter­clockwise until the time
indicator corresponds with the
correct time of day.

♦ The defrost pins should be

checked for tightness. The
timer will require re-adjusting
after a power failure or the
cabinet supply is turned off for
extended periods of time. If an
additional defrost is required
due to ambient or cabinet usage
conditions, do not put a

defrost during the middle of
the day. Put any additional

defrosts during the night or at a
time when the cabinet has the
lowest usage.

♦ Defrost is time initiated and

temperature 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.

DEFROST THERMOSTAT

♦ The defrost thermostat is

located on its mounting plate
which is located on the right
hand end of the evaporator coil
attached to the air scoop which
is a right angle piece of metal
running in front of the
evaporator behind the nose
screen. The thermostat is a bi­metal thermostat that is tied in
series with the defrost time
clock solenoid to end defrost
when the temperature has been
satisfied which is 85

o

F.

11

♦ To remove the thermostat if it

needs replacing, disconnect
power. Remove the nose screen
from in front of the evaporator.

♦ Remove the stainless steel

mirror reflector over the light
fixture.

♦ Consult the wiring diagram for

the wiring terminations for the
thermostat and disconnect.

♦ Remove the air scoop which is

in front of the evaporator coil
and has the defrost Thermostat
mounting plate attached to it.
Remove the thermostat and
disconnect wires.

♦ Reverse the procedure to

reinstall the new thermostat.

DEFROST HEATER REPLACEMENT

♦ The cabinet is equipped with

two (2) defrost heaters which
are wired in parallel, except for
the LBN-4 through –8, 220 volt
which are wired in series.
Wiring them this way allows for
lower wattage which increases
the life of the heater. The

drain pan does not have to
be removed to replace the
heaters.

♦ The heaters are equipped with

plug-in connections that plug
into the underside of the light
fixture. Disconnect the power
supply

♦ Remove the stainless steel

reflector. Remove the nose
screen in front of the evaporator
area.

♦ The heaters are held up against

the evaporator by spring clips.

♦ Press the heaters down and pull

up on the front edge of the
heater clips. The heaters can be
pulled forward.

♦ When replacing be sure the

back pass of the rear defrost
heater goes into the retaining
clip at the back of the drain
pan. This is necessary to
prevent ice build up in the drain
pan.

12

LIGHTING

♦ Cool white fluorescent bulbs

located on the underside of the
stainless steel mirror reflector
provide interior lighting. The
bulbs are sleeved to maintain
proper heat around the bulb for
maximum light intensity and to
protect the product in case of
breakage.

♦ The tubes can be replaced

without removing the doors. To
replace, twist the bulb and slide
the prongs clear of the
lampholder. When reinstalling
this type of bulb be sure the
prongs on the bulb twist and
lock into place.

♦ There is a convenient ON/OFF

switch located on the right hand
end, inside the cabinet, behind
the mirror reflector. This
switch only controls the lights.
The 115-volt power must be
shut off at the main power
supply source located within the
store prior to starting any
service or maintenance work.
The lights should always be left
on to prevent moisture from
forming on the mirror reflector,
which is especially possible in
high humidity applications.

♦ The light ballast is located in

the light fixture. To gain access
remove the mirror reflector.

CONDENSATE HEATERS

There are condensate heaters
behind the stainless steel end
panels, around the front glass, and
behind the nose screen. These
heaters are thermostatically
controlled in case the cabinet
malfunctions and the thermostat
senses above 101

o

F at which time
the heaters will shut off. At
normal ambients and cabinet
operation the heaters will remain
on.

END PANEL HEATERS

The end panel heaters are located
behind the end panel stainless
steel reflectors. They can be
removed by removing the screws on
the bottom edge of the panel and
pulling down on the bottom edge.

The heater is on adhesive foil on
the backside of the panel.

13

FRONT GLASS HEATER

The front glass heater surrounds
the perimeter of the front glass.
The purpose of the heater is to
keep the aluminum trim
surrounding the glass free of
condensation. If the cabinet is
located in a high humidity
environment, the center of the
glass may have a trace of
condensation across it.

TO REPLACE THE HEATER

♦ Disconnect power to cabinet.

Remove the cabinet top by
removing the screws that hold it
into the back of the cabinet, and
on each end.

♦ Lift the top off the cabinet.
♦ Remove the lids.
♦ Remove the screws holding the

backs of the lid tracks to the
galvanized sub-top and the
screws holding the center tracks
to the aluminum rail on top of
the front glass.

♦ Remove the plastic arm trim

breakers in the end aluminum
trim pieces to expose the screws
in them. Remove screws and
remove end trim.

♦ Remove the trim from the top of

the front glass.

♦ Pull the front glass up and out

exposing the wires at the right
hand end of the glass and
disconnect.

♦ Take note of the heater layout

on the glass with reference to
where the connectors are, and
then replace heater.

♦ Reverse procedure to

reassemble.

NOSE HEATER

The nose heater is located behind
the nose screen that is in front of
the evaporator. Remove the nose
screen and replace heater.

CONDENSATE HEATER LIMIT THERMOSTAT

♦ The condensate heater limit

thermostat is a safety feature
that will shut off the condensate
heaters just discussed when the
thermostat senses 101

o

F.

♦ The thermostat is located on the

defrost thermostat mounting
bracket which is on the air
scoop behind the nose screen in
front of the evaporator. To

14

replace see the procedure
described under “Defrost
Thermostat”.

REFRIGERATION

♦ As stated previously, the LBN

series are self-contained. They
feature semi-hermetic
compressors, a bare tube, front­air discharge condenser,
combination cold wall tubing
with upper evaporator coil, and
capillary tube.

♦ The exception is the LBN-10,

which has a fin-and-tube
condenser and horizontal,
straight through air discharge.

♦ If it should become necessary to

leak test the system, please
adhere to the following notice:

NOTICE:
Because of the CFC atmospheric
considerations being taken
today, we ask that leak testing
be done with refrigerant 22
mixture with nitrogen. If the
condensing unit nameplate
designates a refrigerant other
than R-22 remove all R-22 from
the immediate area to avoid
confusion after leak testing and
evacuating the unit. Recharge
the unit with proper
refrigerant.

LEAK TESTING

♦ The test gas cylinder must be

equipped with a pressure gauge
and regulator so that system
test pressures do not exceed
maximum allowable limits. Do
not ever use anything other
than an R- 22 / Nitrogen
mixture for leaks testing.

♦ Attach a refrigerant test gas

cylinder to your service
manifold and connect the
manifold to the charging port on
the liquid line valve. Charge an
R-22 / Nitrogen mixture into the
system, raising the pressure to
the unit’s nameplate for the low
side and high side pressures.
Using an electronic detector,
carefully check the entire
system for leaks. Take special
care to inspect all brazed and
flare connections.

EVACUATION

After the system is proven leak
tight, thoroughly evacuate the
system according to the following
procedure:

♦ 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 solenoid valves are
open to allow all of the mixture
to be discharged.

♦ Connect a deep-drain vacuum

pump to both the high and low
side of the system. Pull a

15

vacuum on the system to at
least 1500 microns.

♦ Break the vacuum by adding

refrigerant into the system until
the pressure is above 0 PSIG.
Always charge the refrigerant
line into the system through a
new drier in the charging
manifold line. A 16 cubic inch
drier is sufficient for this
purpose.

♦ Repeat steps 2 and 3 two more

times, the third time evacuating
the system to 500 microns.

OPERATIONAL DATA

The following is typical data for the
LBN series based on lab tests, and
may vary under field operating
conditions.

Amb. Temp. 75

o

F
Head Press 230-250 psi
Suct. Press 6-8 psi
*Discharge Temp. -25

o

F

*Discharge temperature is the
temperature taken off the lower
half of the nose screen.

REFRIGERANT CONTROL

Refrigerant flow to the evaporator
is controlled through the use of a
capillary tube. The capillary tube
is soldered for a specified length to
the suction line, forming one
integral piece to assure proper heat
exchange.

Because the suction line capillary
tube assembly, sometimes referred
to as heat exchanger or pullout coil,
has no moving parts, it very rarely
if ever needs servicing.

However, should a leak occur in the
system, it is possible that dirt,
dust, or moisture may collect in the
capillary tube causing the system
to go into a vacuum. Should this
occur, it is recommended that dry
nitrogen or a dry refrigerant be
forced through the system to clear
the blockage.

If attempts to clear the restriction
by this method are unsuccessful,
the ENTIRE ASSEMBLY, NOT
THE CAPILLARY TUBE ONLY,
should be replaced with a new
factory ordered replacement.

CRANKCASE PRESSURE
REGULATOR

♦ The LBN series employ a

crankcase pressure regulator in
the suction line and is
considered part of the heat
exchanger. The CPR is set for
10 psi. The purpose of the valve
is to maintain a low suction
pressure on start-up so that the
compressor 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.

16

♦ If it becomes necessary to check

or reset the setting, the cabinet
must be warm such as after a
defrost cycle or from an initial
warm cabinet condition.

♦ Put a suction compound gauge

on the compressor suction valve,
start the compressor. If the
pressure needs to be reduced
turn the adjustment screw
clockwise or, counterclockwise
to raise the pressure.

♦ DO NOT SET THE VALVE

BASED ON THE NAMEPLATE
AMPERAGE RATING AS THE
PRESSURE SETTING WILL
BE TOO HIGH AND THE
COMPRESSOR WILL NOT
START PROPERLY.

17

TROUBLE SHOOTING

SYMPTON

Compressor runs
continuously product too
warm

PROBABLE CAUSE (S) POSSIBLE SOLUTION

1. Short of refrigerant 1. Leak check, change
drier, evacuate, and
recharge

2. Inefficient compressor 2. Replace

3. Dirty condenser 3. Clean

4. Evaporator oil logged 4. Blow oil out of
evaporator

High Head Pressure 1. Cabinet location too

1. Relocate cabinet

warm

2. Restricted condenser

air flow

2. Clean condenser to
remove air flow
restriction

3. Defective condenser

3. Replace

fan motor

4. Air or non-

condensable gases in
system

4. Leak check, change
drier, evacuate, and
recharge

Warm storage
temperatures

1. Temperature control
not set properly

1. Reset control

2. Short of refrigerant 2. Leak check, change
drier, evacuate, and
recharge

3. Cabinet location too

3. Relocate

warm

4. Too much refrigerant 4. Change drier,
evacuate, and recharge

5. Low voltage.

5. Check power

Compressor cycling on
overload

6. Condenser dirty 6. Clean

18

SYMPTON PROBABLE CAUSE (S) POSSIBLE SOLUTION

Compressor runs

1. Defective control 1. Replace
continuously product too
cold

2. Control feeler not in

tube properly

2. Assure proper length
in tube

3. Short on refrigerant 3. Leak check change

drier, evacuate, and
recharge

Compressor will not
start no noise

2. Defective or broken

1. Blown fuse or breaker 1. Replace fuse or reset

breaker

2. Repair or replace

wiring

3. Defective overload 3. Replace

4. Defective

4. Replace

temperature control

5. Power disconnected 5. Check service cord or

wiring connections

Compressor will not

1. Low voltage 1. Contact electrician
start cuts out on
overload

2. Defective compressor 2. Replace

3. Defective relay 3. Replace

4. Restriction or

moisture

4. Leak check, replace
drier, evacuate and
recharge

5. Inadequate air over

5. Clean condenser

condenser

6. Defective condenser

6. Replace

fan motor

7. CRO not set properly Reset to 10 psi.

19

SYMPTON PROBABLE CAUSE (S) POSSIBLE SOLUTION

Icing condition in drain
pan under evaporator

1. Low voltage 1. Check voltage at

compressor

2. Cabinet not level 2. Check front to rear

leveling

3. Defective defrost

3. Replace

heater

4. Drain trap does not

have water in it

4. Pour water down
drain

Low suction pressure

1. CPR not set properly 1. Reset to 10 psi
Low head pressure

2. Defective CPR 2. Replace

3. Cap tube blocked due

to moisture or dirt

3. Change drier,
evacuate, and recharge

4. Short of refrigerant 4. Leak check, change

drier, evacuate, and
recharge

Pressures normal ­cabinet warm

1. Top coil blocked with

frost

1. Check defrost system

2. Evaporator oil logged 2. Blow oil out of

evaporator

LIGHT PROBLEMS / SOLUTIONS

Lights won’t work 1. Check light switch

2. Check continuity to ballast

3. Check to see if bulbs inserted

properly in sockets

4. Check voltage

20

LIGHTS - Con’t

Lights flicker 1. Allow lamps to warm up

2. Check lamp sleeve for cracks

3. Check sockets for moisture and

proper contact

4. Bulb replacement may be

necessary

5. Check voltage

6. New bulbs tend to flicker until

used

Ballast hums 1. Check voltage

2. Replace ballast

ACCESSORIES & OPTIONS

COUNTERTOP

The cabinet is provided with a
metal countertop as standard but,
a 16” and 20” wooden countertop
can be provided. The 16” one is
flush mount to the back of the
cabinet while the 20” one is wider
than the cabinet to provide a larger
working surface if needed.

STAINLESS STEEL TOP

Like the countertops, the stainless
steel top replaces the standard
metal countertop for those who
need a highly durable working
surface.

SUPERSTRUCTURE WITH
LIGHTED CANOPY

The cabinet can be provided with a
superstructure, which has two
shelves, and a lighted canopy that
attaches to the back of the cabinet.

The superstructure allows for the
storage of dry goods without the
need for additional floor space.

SUPERSTRUCTURE WITHOUT
LIGHTED CANOPY

The superstructure can also be
provided without the lighted
canopy. It is still supplied with
two shelves.

PRODUCT SHELF KIT

The interior of the LBN series has
a raised step over the condensing
unit compartment. The product
shelf kit is a false bottom that
makes the bottom of the cabinet
level with the raised step.

BAG RACK

A bag rack can be provided to store
various size checkout bags. The

21

rack attaches to the back of the
cabinet.

DIAL THERMOMETER

The cabinet can be provided with a
two inch dial thermometer rather
than the standard pencil type
thermometer. THIS TYPE MUST
BE FACTORY INSTALLED. It is
located in the left end of the upper
stainless steel reflector above the
light fixture.

LID LOCK KIT

For product security, a lid lock kit
can be provided. Each kit secures
two lids.

WARRANTY, ELECTRICAL COMPONENTS

WIRING DIAGRAMS

ORDERING REPLACEMENT
PARTS

♦ Contact your nearest

Hussmann Distributor.

♦ Always specify model and serial

number of cabinet.

♦ If correct part number is not

known, give a clear description
of part itself and it functions in
the cabinet or remote unit.

CASTER KIT

If the cabinet needs to be moved
quite often or for additional health
code regulations, the caster kit
raises the cabinet approximately
4 ½”. The wheel on the caster itself
is 3”.

NOVELTY BASKET

For the storage and display of
novelty ice cream items, the
novelty basket is ideal. The basket
is white epoxy-coated for that clean
look and it is 10” x 12” x 6 ½” high.
Basket dividers are also available.

WARRANTY PARTS
PROCEDURE

♦ First three steps same as

ordering replacement parts.

♦ Give original installation date

of cabinet and, if possible,
forward a copy of the original
invoice or delivery receipt.

♦ All shipments of in-warranty

replacement parts will be
invoiced from the factory until
such time as the defective part
is returned and proved to be
defective by our Quality Control
Department.

22

♦ Contact your Hussmann

Distributor for instructions on
returning in-warranty parts.

♦ Warranty parts must be

returned to the factory within
30 days of date of failure to
assure proper disposition.

♦ Lack of any of the information

may result in the shipment of
the wrong part, or a delay in
shipment.

COMPRESSOR
REPLACEMENT PROCEDURE

♦ Replacement compressors 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
twelve months of installation,
not to exceed twenty months
from the date of manufacture,
as determined by the
compressor serial number on
the compressor serial plate.

♦ For any defective compressor

beyond the twelve or twenty
month time period, a salvage
value credit will be given too
partially offset the invoice for
the replacement.

♦ After March 16, 1991 when all

cases have the five-year
warranty as standard, the
following procedure applies:

FORWARD TO YOUR NEAREST
HUSSMANN DISTRIBUTOR:

a) The cabinet model and serial

number

b) A copy of the wholesaler’s

invoice, along with a copy of the
salvage value credit.

INTERNAL LEAK WARRANTY
POLICY

♦ The LBN series are warranted

from the date of factory
shipment for five years for an
internal leak. An internal leak
not only includes the cold-wall
tubing but the upper evaporator
as well on these models.

♦ If it is felt that there is an

internal leak in the cabinet,
care should be taken to actually
determine that there is a leak.

♦ To do this properly, the

cabinet’s evaporator section
must be isolated from the
condenser section.

♦ Unbraze the tubes going into

the back of the cabinet at the
end of the heat exchanger.

♦ Pinch or cap the larger tube and

braze shut.

23

♦ Add a schrader valve to the

smaller tube.

♦ Attach the high side gauge of a

compound gauge to the valve
and pressurize the cabinet with
nitrogen or otherwise suitable
gas.

♦ There should be at least 300 psi

on the system.

♦ Mark the pressure on the gauge

and leave it, returning 24 hours
later.

♦ Note the pressure. If it has

fallen more than 150-200 psi
then the system may have an
internal leak.

♦ If it only drops a small amount

this does not mean that you
have an internal leak but that
the gas in the cabinet is cooler
and has reduced its pressure
because of this.

♦ If the cabinet has an internal

leak contact the nearest
Hussmann distributor or the
factory to receive authorization
to return the cabinet to the
factory.

NO CABINET WILL BE
ACCEPTED AT THE FACTORY
WITHOUT A LETTER OF
AUTHORIZATION FOR
RETURN.

24

ELECTRICAL COMPONENTS REPLACEMENT LIST

LBN-4 LBN-5

Compressor (R-404A) KAGB-005E-IAA KAGB-005E-IAA
Hermetic as of 11/03 J2212GK

Condenser Fan Motor EMS ESPL25EM1 EMS ESPL25EM1
Light Ballast 8G3706 8G3706
Fluorescent Lamp F30T8CW F40T12CW
Lamp Starter FS4 FS4

LBN-6 LBN-7
Compressor (R-404A) KAGB-005E-IAA KAAB-007E-CAA
(Compressors are Copeland)
Condenser Fan Motor EMS ESPL25EM1 EMS ESPL25EM1
Light Ballast 8G3706 (2) 8G3706
Fluorescent Lamp F40T12CW (2) F30T8CW
Lamp Starter (1) FS4 (2) FS4

LBN-8 LBN-10
Compressor (R-404A) KAAB-007E-CAA KALB-010E-CAV
(Compressors are Copeland)
Condenser Fan Motor EMS ESPL25EMI EMS ESPL25EM2
Light Ballast (2) 8G3706 8G1024
Fluorescent Lamp (1) F40T12CW (2) F40T12CW
(1) F30T8CW
Lamp Starter (2) FS4

R-404A compressor (models with “E”) require the use of a polyol ester oil,
made by Mobil under part No. EAL ARCTIC 22 CC. An acceptable alternate
if this is not available is ICI EMKARATE RL 32S. Do not use any other oil in
these compressors. The polyol ester oil is very susceptible to absorbing
moisture, so every effort should be made to keep systems closed during
repair, as well as during the handling of the oil itself.

25

REV.

R

FAN MOTOR

CONDENSER

LIGHT FIXTURE

BLK

YEL

YEL

BALLAST

LAMP

BLU

WHT

LAMP

BLU

RED29RED

LIGHT SWITCH

50

2

12

23
17

1

511
37

10 8
46
9

31 32

152124

13

22 19

16 18

14 20

25 26

39

28 27

30

40

48

46
44
42

ELECTRICAL BOXLIGHT FIXTURE

51 52
49
47

45
43
41

PRP

2

1

11

5
3

7

10

8

4

6

9

12

31

32

15

24

21

23
17

13
22

19

16
141820

25 26

39

28 27

30 29

40

COMPRESSOR

TIMER

YEL

CONTROL

TEMPERATURE

DWG. NUMBER

M100-1450 B

Gloversville, N.Y. 12078

M.L.

ELECT. BOX

RED

BRN

S

X

N

4

2

3

1

C

SWITCH

S1 S3

S2 S4

 1/32"

OTHERWISE SPECIFIED.

FRACTIONAL

TOLERANCES UNLESS

SIZE

SHEET

MATERIAL:

10-88

LBF-10 WIRING DIAGRAM

DATE

DRAWN

CHECKED

E

TYPE

CODE

TITLE

 1/64"

1.0 = 1.0

 0.031"

 1ü

FINISH

HOLE LOCATION

& SPACING

SCALE:

DECIMAL

ANGULAR

C

DIE NO.

SIZE

4358

4510

E.C.N.

BY

S.S.

M.L.

DATE

07-86

10-88

A

BLK

WHT

RED

208-230 V.

230 V.

SUPPLY BOX

/1 0

60 HZ

115 V.

SUPPLY BOX

7

8

18

9

20

19

CONDUCTORS.

USE COPPER, COPPER-CLAD

ALLUMINUM, OR ALLUMINUM

L.H. BREAKER HTR.

NOSE HEATER

R.H. BREAKER HTR.

3

13

BLK

BRN

FRONT GLASS HEATER

ANTI-CONDENSATE

HEATER THERMOSTAT

115 V.

/1 0

60 HZ

2

28

29

30

26

COIL HEATER

39

40

COIL HEATER

B

LBF-10 STANDARD

REV.

DEFROST THERMOSTAT

115 V. ELECTRICAL CIRCUIT

208-230 V. ELECTRICAL CIRCUIT

DEFROST THERMOSTAT

HEATER THERMOSTAT

115V

60 Hz

1Ø

COIL HEATER

COIL HEATER

NOSE HEATER

L.H. END HEATER

R.H. END HEATER

ANTI-CONDENSATE

BRN

BLK

RED

BLK

19

22

RED

BALLAST

WHT

17

23

24

15

13

21

BLK

29

WHT

16

BRN

2

26
30

27

39
40

7

18

RED

8

RED

19

RED

20

RED

9

29

40

30

28

26

39

25

YEL

YEL

C

WHT

18

20

16

14

X

3

4

N

2

1

4

PURP

RED

J

TEMPERATURE

S1

BLK

S3

CONTROL

BLK

S

LAMP

S

32

31

BLK

BRN

BLK

BLK

BLU

WHT

BLK

WHT

BLK

46

LIGHT

SWITCH

BLK

12

9

7

856

4

3

10

2

11

1

LIGHT FIXTURE

BRN

BLK

27

FRONT GLASS HEATER

26

ELECT. BOX

CONDENSER

42

43

2

FAN

R

1

WHT

S2

POWER

S4

COMPRESSOR

SWITCH

LBF-4,5,6 LBN-5,6 115/60/1

REV EO # REV DATE REV BY

APPROVED BY

9-24-01 JJH

-

ECN 5095 REVE

-REV D BY JWL 1-12-99 ADDED LBN

-

-REV E CHANGED BALLAST WIRING & LAMP HOLDER WIRING

-

-

TOLERANCES UNLESS OTHERWISE SPECIFIED: FRACTIONAL 1/32"
DECIMAL 0.031" ANGULAR 1° HOLE LOCATION & SPACING 1/64"

EO NUMBER

ECN 5095-REV E

DRAWN BY:
DATE DRAWN :
APPROVED BY:

JWL

SCALE

INCHES

SHEET #

3/5/91

-

1 OF 1

GLOVERSVILLE, NY 12078

WIRING DIAGRAM

M100-1436 E



YELLOW
LAMP

(ON DURING DEFROST)

15

BLK

39

RED

BLK

S

BLK

DEFROST
S'TAT

COIL HEATER

COIL HEATER

NOSE HEATER

L.H. END HEATER

R.H. END HEATER

ANTI-CONDENSATE
HEATER T'STAT

32

31

BRN

RED

WHT

BLUE

LIGHT SWITCH

BLK

8

7

6

12

3

4

9

10

2

11

5

1

LIGHT FIXTURE

BLK

FRONT GLASS HEATER

WHT

ELEC BOX

COMPRESSOR

42

WHT

BLK

4

5

43

CONDENSER
FAN

YEL

LAMP

BLK

BALLAST

WHT

18

19

17

23

24

13

21

14 20

16

22

3

4

N

2

1

15

S

X

BLK

BLK

BLK

29
16

2

26

30
39

40

7

18

RED

8

19

RED
RED

20

9

RED

BRN

RED

BLK

WHT

BRN

WHT

29

27

40

28

30

4

26

39

25

C

J

PURP

115v
60 Hz
10

POWER
SWITCH

S1

S3

S2

S4

BLK

WHT

USAGE: LBN-4 W/HERMETIC COMP. SPECIAL FOR TAIWAN 7-11

BLK

REV EO # REV DATE REV BY

-

APPROVED BY

-

-

-

-

-

-

TEMP CONTROL

--

TOLERANCES UNLESS OTHERWISE SPECIFIED: FRACTIONAL 1/32"
DECIMAL 0.031" ANGULAR 1° HOLE LOCATION & SPACING 1/64"

EO NUMBER

DRAWN BY:
DATE DRAWN :
APPROVED BY:

-

JJH

-

09/08/03

SCALE

SHEET #

INCHES

1 OF 1

SHEET 1 OF 2



GLOVERSVILLE, NY 12078

WIRING DIAGRAM

M100-2307

BLACK

WHITE

#2 TIMER

#4 TIMER

COND. FAN

TEMP. CONTROL

C

5

2

BLACK 43

S

R

RED

4

4

1

START CAP.

WHITE 42

RUN CAP.

RELAY ASSY

N TIMER

USAGE: LBN-4 W/HERMETIC COMP. SPECIAL FOR TAIWAN 7-11

REV EO # REV DATE REV BY

-

APPROVED BY

-

-

-

-

-

--

-

TOLERANCES UNLESS OTHERWISE SPECIFIED: FRACTIONAL 1/32"
DECIMAL 0.031" ANGULAR 1° HOLE LOCATION & SPACING 1/64"

EO NUMBER

DRAWN BY:
DATE DRAWN :
APPROVED BY:

-

JJH

-

09/08/03

SCALE

SHEET #

INCHES

1 OF 1

SHEET 2 OF 2



GLOVERSVILLE, NY 12078

WIRING DIAGRAM

M100-2307

DEFROST THERMOSTAT

HEATER THERMOSTAT

115V

60 Hz

1Ø

COIL HEATER

COIL HEATER

NOSE HEATER

L.H. END HEATER

R.H. END HEATER

ANTI-CONDENSATE

BRN

BLK

RED

BLK

BLU

BLK

29

WHT

16

BRN

2

26
30

39
40

7

18

RED

8

RED

19

RED

20

RED

9

29

40

30

4

BALLAST

27

39

28

YEL

C

PURP

S

LAMP

26

25

YEL

BLK

BLK

WHT

BLK

BLU

BALLAST

WHT

19

18

20

14

17

23

16

13

21

22

RED

32

24

31

15

BLK

S

BRN

X

3

4

N

2

1

RED

BLK

J

WHT

TEMPERATURE

S1

BLK

S3

BLK

CONTROL

BLK

S

LAMP

12

9

BLK

WHT

BLK

WHT

LIGHT

46

SWITCH

BLK

7

856

4

3

10

2

11

1

LIGHT FIXTURE

BRN

BLK

WHT

27

FRONT GLASS HEATER

26

ELECT. BOX

CONDENSER

42

43

2

FAN

R

1

WHT

S2

POWER

S4

COMPRESSOR

SWITCH

LBF-7,8 LBN-7,8 115/60/1

REV EO # REV DATE REV BY

1/12/93 JWL

D

APPROVED BY

-

-

-

­ 7/15/99 ADDED LBN

-

TOLERANCES UNLESS OTHERWISE SPECIFIED: FRACTIONAL 1/32"
DECIMAL 0.031" ANGULAR 1° HOLE LOCATION & SPACING 1/64"

EO NUMBER

DRAWN BY:
DATE DRAWN :
APPROVED BY:

-

JWL

SCALE

INCHES

SHEET #

3/5/91

-

1 OF 1

GLOVERSVILLE, NY 12078

WIRING DIAGRAM

M100-1395 D



DEFROST THERMOSTAT

COIL HEATER

COIL HEATER

NOSE HEATER

L.H. END HEATER

R.H. END HEATER

ANTI-CONDENSATE

HEATER THERMOSTAT

BRN

BLK

RED

BLK

19

22

RED

17

13

WHT

BALLAST

23

21

24

15

BLK

29

WHT

16

BRN

2

26
30

27

39
40

7

18

RED

8

RED

19

RED

20

RED

9

29

40

30

28

26

39

25

YEL

YEL

C

WHT

18

20

16

14

X

3

4

N

2

1

4

PURP

RED

J

TEMPERATURE

S1

BLK

S3

CONTROL

BLK

S

LAMP

S

32

31

BRN

BLK

BLK

BLK

BLU

BLK

WHT

WHT

12

9

856

4

10

COMPRESSOR

42

43

BLK

46

LIGHT

SWITCH

BLK

7

3

2

11

1

LIGHT FIXTURE

BRN

BLK

27

FRONT GLASS HEATER

26

ELECT. BOX

4

5

CONDENSER

FAN

WHT

S2

POWER

S4

SWITCH

115V

60 Hz

1Ø

SHEET 1 OF 2

LBN- 4 HERMETIC 115/60/1

REV EO # REV DATE REV BY

APPROVED BY

-

-

-

-

-

-

TOLERANCES UNLESS OTHERWISE SPECIFIED: FRACTIONAL 1/32"
DECIMAL 0.031" ANGULAR 1° HOLE LOCATION & SPACING 1/64"

EO NUMBER

DRAWN BY:
DATE DRAWN :
APPROVED BY:

JJH

-

08/19/03

SCALE

SHEET #

INCHES

1 OF 1



GLOVERSVILLE, NY 12078

WIRING DIAGRAM

M100-2305

BLACK

WHITE

#2 TIMER

#4 TIMER

COND. FAN

TEMP. CONTROL

C

5

2

BLACK 43

S

R

RED

4

4

1

START CAP.

WHITE 42

RUN CAP.

RELAY ASSY

N TIMER

SHEET 2 OF 2

LBN- 4 HERMETIC 115/60/1

REV EO # REV DATE REV BY

APPROVED BY

-

-

-

-

-

-

TOLERANCES UNLESS OTHERWISE SPECIFIED: FRACTIONAL 1/32"
DECIMAL 0.031" ANGULAR 1° HOLE LOCATION & SPACING 1/64"

EO NUMBER

DRAWN BY:
DATE DRAWN :
APPROVED BY:

JJH

-

08/19/03

SCALE

SHEET #

INCHES

1 OF 1



GLOVERSVILLE, NY 12078

WIRING DIAGRAM

M100-2305