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
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