Hussmann LBN Guía rápida

January 2006

HUSSMANN - GLOVERSVILLE

INSTALLATION & SERVICE

INSTRUCTIONS

FOR

LBN MODELS

Low Temperature – Self Contained Merchandiser

For

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

P/N OII – LBN

January 2006

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

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

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

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

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.

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.

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.

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.

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.

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.

Silicone Sealant

Floor

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,

and –8 also require a circuit

breaker or a time delay fuse rated

at 15 amps for the circuit being run

to them.

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.

The LBN-10 requires conduit

connections of both 115v and 208-

230v with an amperage rating of 15

amps for each circuit. Marked

leads are provided for these

connections in the field.

SERIAL PLATE INFO.

The serial plate is located on the

left-hand end of the case interior,

If wiring the LBN-10 to a “3-wire”

system is preferred, a 20amp, 208-

230 v circuit needs to be provided. 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.

See the diagram below concerning

a “3-wire” system.

INITIAL START UP AND

♦Set the defrost timer for the

correct time of day, making sure

the defrost pins are secure in

the face of the clock. The LBN-

4 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.

All of these models are 60hz, 1ph.

If another voltage, hertz, or phase

is required, please consult the

factory.

♦Check the cabinet thoroughly

for loose nuts and bolts and

electrical connections. Inspect

the refrigeration lines for any

visible damage or chafing.

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.

♦Replace the louvered access

panel.

♦Start the cabinet and allow to

pull down to operating

temperature before loading.

BTU CAPACITIES

RATINT TEMPS oF

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

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

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 trouble-

free 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

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.

♦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 self-

closing. 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

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.

OPERATION

AND

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 counter-

clockwise 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 –15oF. 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 –

10oF 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 –40oF

to +80oF on 2oincrements. 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

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