Hussmann RI1 User manual

Island and Multi-deck Island

Cheese & Deli

RI & SI

Remote Models

Installation &

Operation Manual

Shipped With Case Data Sheets

P/N 0446551_A

October 2006

IIMMPPOORRTTAANNTT

KKeeeeppiinnssttoorreeffoorr

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Merchandisers

INSTALLATION

NSF Certification . . . . . . . . . . . . . . . . . . . . . 1-1

Hussmann Product Control . . . . . . . . . . . . . 1-1

Shipping Damage . . . . . . . . . . . . . . . . . . . . . 1-1

Shortages . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Uncrating . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Exterior Loading . . . . . . . . . . . . . . . . . . . . . . 1-2

Leveling and Joining . . . . . . . . . . . . . . . . . . 1-2

Finishing Touches . . . . . . . . . . . . . . . . . . . . . 1-3

Plexiglass Joining . . . . . . . . . . . . . . . . . . . . . 1-4

Perimeter Plexiglass . . . . . . . . . . . . . . . . . . . 1-5

Access Panels . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Installing Splashguard . . . . . . . . . . . . . . . . . 1-5

REFRIGERATION / ELECTRICAL

Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Refrigerant Piping . . . . . . . . . . . . . . . . . . . . 2-1

Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Suction Line . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Liquid Line . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Refrigeration Thermostat . . . . . . . . . . . . . . . 2-2

Optional Defrost Termination Thermostat . . 2-2

Defrost Sequences . . . . . . . . . . . . . . . . . . . . 2-2

Access to Valves and Drain Lines . . . . . . . . 2-3

Electronic Expansion Valve (Optional) . . . . 2-3

TEV Adjustment . . . . . . . . . . . . . . . . . . . . . . 2-3

Measure Operating Superheat . . . . . . . . . . . 2-3

Merchandiser Electrical Data . . . . . . . . . . . . 2-4

Electrical Connections . . . . . . . . . . . . . . . . . 2-4

Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Identification of Wiring . . . . . . . . . . . . . . . . 2-4

Wiring Color Code . . . . . . . . . . . . . . . . . . . . 2-4

DRIP PIPING AND SPLASHGUARDS

Waste Outlet and Water Seal . . . . . . . . . . . . 3-1

Installing Drip Piping . . . . . . . . . . . . . . . . . . 3-1

Installing Splashguards . . . . . . . . . . . . . . . . . 3-2

Sealing Splashguard to Floor . . . . . . . . . . . . 3-2

START UP / OPERATION

Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Stocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Load Limits . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Load Limit Profile . . . . . . . . . . . . . . . . . . . . 4-2

Installing Lighted Shelves . . . . . . . . . . . . . . 4-4

Installing FDA/NSF Required Thermometer 4-6

MAINTENANCE

Care and Cleaning . . . . . . . . . . . . . . . . . . . . 5-1

Plexiglass and Acrylic Care . . . . . . . . . . . . . 5-2

Cleaning Mirrors . . . . . . . . . . . . . . . . . . . . . 5-2

Cleaning Center Air Discharge (CAD)

Tower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Cleaning Honeycomb Assemblies . . . . . . . . 5-4

Cleaning Under Merchandiser . . . . . . . . . . . 5-4

Removing Scratches from Bumper . . . . . . . 5-4

SERVICE

Tips and Troubleshooting . . . . . . . . . . . . . . . 6-1

Replacing Fan Motors and Blades . . . . . . . . 6-1

Replacing Fluorescent Lamps . . . . . . . . . . . 6-3

Replacing Lamp Holders . . . . . . . . . . . . . . . 6-2

Replacing Electronic Ballasts . . . . . . . . . . . . 6-2

Replacing Damaged Drain Fitting . . . . . . . . 6-3

Repairing Copper Coils . . . . . . . . . . . . . . . . 6-4

Repairing Aluminum Coils . . . . . . . . . . . . . 6-4

WARRANTY

TABLE OF CONTENTS

P/N 0446551_A

IMPORTANT

KEEP IN STORE FOR FUTURE REFERENCE

Quality that sets industry standards!

12999 St. Charles Rock Road • Bridgeton, MO 63044-2483

U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900

www.hussmann.com

Island & Multi-deck Island

P/N 0446551_A 1-1

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

NSF CERTIFICATION

These merchandisers are manufactured to meet

ANSI / National Sanitation Foundation (NSF®)

Standard #7 requirements. Proper installation is

required to maintain certification. Near the serial

plate, each case carries a label identifying the

type of application for which the case was certi-

fied.

ANSI/NSF-7 Type I – Display Refrigerator / Freezer

Intended for 75°F / 55%RH Ambient Application

ANSI/NSF-7 Type II – Display Refrigerator / Freezer

Intended for 80°F / 55%RH Ambient Application

ANSI/NSF-7 – Display Refrigerator

Intended for Bulk Produce

HUSSMANN PRODUCT CONTROL

The serial number and shipping date of all

equipment is recorded in Hussmann’s files for

warranty and replacement part purposes. All

correspondence pertaining to warranty or parts

ordering must include the serial number of each

piece of equipment involved. This is to ensure the

customer is provided with the correct parts.

SHIPPING DAMAGE

All equipment should be thoroughly examined for

shipping damage before and during unloading.

This equipment has been carefully inspected at

our factory. Any claim for loss or damage must be

made to the carrier. The carrier will provide any

necessary inspection reports and/or claim forms.

Separately packaged accessories such as kits and

shelves should be carefully unpacked. Check for

damage before discarding packaging.

Apparent Loss Or Damage

If there is an obvious loss or damage, it must be

noted on the freight bill or express receipt and

signed by the carrier’s agent; otherwise, carrier

may refuse claim.

Concealed Loss Or Damage

When loss or damage is not apparent until after

equipment is uncrated, retain all packing materials

and submit a written request to the carrier for

inspection, within 15 days.

SHORTAGES

Check your shipment for any possible shortages

of material. If a shortage should exist and is

found to be the responsibility of Hussmann,

notify Hussmann. If such a shortage involves the

carrier, notify the carrier immediately and request

an inspection. Hussmann will acknowledge short-

ages within ten days from receipt of equipment.

LOCATION

These merchandisers are designed for displaying

products in air conditioned stores where tempera-

ture is maintained at or below the ANSI / NSF-7

specified level and relative humidity is maintained

at or below 55%.

Placing refrigerated merchandisers in direct sun-

light, near hot tables or near other heat sources

could impair their efficiency.

Like other merchandisers, these are sensitive to air

disturbances. Air currents passing around mer-

chandisers will seriously impair their operation.

Do NOT allow air conditioning, electric fans,

open doors or windows, etc. to create air currents

around the merchandisers.

INSTALLATION

1-2 INSTALLATION

Product should always be maintained at proper

temperature. This means that from the time the

product is received, through storage, preparation

and display, the temperature of the product must

be controlled to maximize the life of the product.

UNCRATING

Move the merchandiser as close as possible to its

permanent location. Remove the top of the crate

and detach the walls from each other. Lift crate

from the skid. Unbolt the case from the skid. The

fixture can now be lifted off the crate skid. Lift

only at base of skid! Remove any braces and/or

skids attached (blanket wrapped merchandisers

may have skids). Always check for damage

before discarding packaging.

EXTERIOR LOADING

Do NOT walk on top of merchandisers or

damage to the merchandisers and serious

personal injury could occur. THEY ARE NOT

STRUCTURALLY DESIGNED TO SUPPORT EXCESSIVE

EXTERNAL LOADING such as the weight of a

person. Do not place heavy objects on the

case.

LEVELING AND JOINING

Since ends are an integral part of these models,

and re-joining sectional models is part of setting,

there are no separate end or joining instructions

for this family. Sections are sometimes referred to

as split cases, or end and center cases.

The sectional construction of models 16 ft

(4877 mm) or longer enables them to be shipped

in two sections and to be re-joined easily at the

job site.

Some models, 16 ft (4877 mm) or less, are

shipped as one section and are not re-joined.

A JOINT TRIM KIT is supplied when appropriate to

cosmetically mask the sectional joints. This

involves applying a vinyl strip to the top of the

center air discharge (CAD).

Merchandisers must be installed level to ensure

proper operation of the refrigeration system and

to ensure proper drainage of defrost water. It is

imperative that cases be leveled from front to

back and side to side prior to joining. Leveling

the case correctly will solve most operating

problems.

1. Check floor where cases are to be set to see if

it's level. Determine where the highest part of

the floor is. Cases will be shimmed off this

point. Using case blueprints, measure off and

mark on floor the exact dimensions of the

case footprint. Snap chalk lines for front and

back position of base rail. Mark location of

each joint front and back. Use a transit to find

the highest point along both lines. Mark the

difference, then place the appropriate number

of shims required to maintain high-point

level.

P/N 0446551_A WWW.HUSSMANN.COM

Do NOT remove shipping crate until the

case is positioned for installation.

WARNING

Do not walk or put heavy objects on case.

CAUTION

Island & Multi-deck Island

P/N 0446551_A 1-3

2. Set first half of case. Case must be shimmed

under legs where case is strongest.

3. Set second half of case as close as possible to

the first, and level second half to the first

using the instructions in step one.

4. Apply liberal bead of case joint sealant (gray

silicone) to side of first half. Apply silicone

along outline, as illustrated. Do not use

Permagum! Permagum does not allow cases

to draw up tight, and therefore leaves gaps at

the joint. The case must be shimmed under

base where support is best to prevent damage

to case.

5. Slide second case up to first case snugly.

6. Verify the plexiglass is aligned. See plexiglass

joining instructions (Finishing Touches sec-

tion) for more information.

7. To compress silicone at joint, use two

Jurgenson wood clamps to pull the inside of

the bulkheads together. Make sure case is

level from front to back and side to side on

inside bulkheads at joint. Do not place levels

on display pans or on shelves. Do not use

bolts to draw cases tight! Damage may

occur.

8. Make sure cases are tight and bolted together

in all places (see diagram). Remove clamps.

9. Split (or end) cases such as RIE and SIE have

an interlock system built into the CAD tower.

Joining involves a number of bolts, dependent

on the height of the tower.

FINISHING TOUCHES

After the merchandiser has been leveled and

re-joined, and all drip piping, electrical and

refrigeration work has been completed, finish the

plexiglass joining and install the splashguards.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

Avoid removing concrete!

Begin lineup at highest point of store floor.

All cases were leveled and joined prior to

shipment to ensure closest possible fit

when cases are re-joined in the field.

CAUTION

Feed CAD Tower

Bolts In

Through Front

Bolt

Locations Silicone

Sealant

Bead

Bolt and Sealant Locations

Proper case joint sealing is extremely

important to prevent water leaks.

INSTALLER

1-4 INSTALLATION

P/N 0446551_A WWW.HUSSMANN.COM

PLEXIGLASS JOINING

Note: All split cases are set, leveled and joined

together in the factory to ensure proper alignment

and tight joints between the cases. To obtain

equally tight joints in the field, it is critical to use

the GE 1200 silicone supplied to seal case joints.

Only silicone allows case joints to pull up tight!

Do not use Permagum! It will cause large gaps

at case joints and prevent plexiglass from joining.

Parts List

• Plastic rod, 1 in. (25 mm) long, 3/16 in. (5 mm)

diameter

• Acrylic Solvent Cement (IPS Weldon #40 or

comparable, mixing instructions below)

• Masking tape and duct tape (not supplied)

Instructions

1. Prepare front plexiglass for cement applica-

tion by placing masking tape not more than

1/16 in. (6 mm) from the seam, on both sides,

front and back. Tape is to protect plexiglass

from cement spill over. Scarring will occur if

cement touches clear plexiglass.

2. Separate front plexiglass pieces enough to

apply a bead of #40 cement down one edge

inside of seam and plastic rod area.

3. Apply cement with applicator to one or both

surfaces. Join immediately.

4. Realign front plexiglass and push together

tightly. Insert the plastic rod until flush with

top of plexiglass.

5. Apply just enough pressure to remove any air

bubbles. Do not squeeze joint so hard as to

force cement out of the joint—a dry joint may

result.

6. Apply tape (2 in. duct tape recommended)

across face of seam to secure plexiglass from

shifting while cement dries.

7. Allow approximately 4 hours to dry at 70°F.

Weldon #40 (2-part) Cement Mixing Instructions

1. Bring Parts A and B to room temperature

before mixing.

2. Add Part A to Part B. Quantities have been

premeasured at the factory.

3. Stir slowly and evenly to avoid air bubbles.

Mix for 1-3 minutes.

Island & Multi-deck Island

P/N 0446551_A 1-5

PERIMETER PLEXIGLASS

When replacing a section of perimeter plexiglass,

first remove the applicable bolts holding it in

place, as illustrated below.

ACCESS PANELS

All electrical and drain access panels are clearly

labeled on the deck of the deli/cheese stand.

Access panels for the condensing unit in self-

contained models are located on the sides of the

stand, at one end. Panels are fitted for removal if

the condensing unit has to be taken out.

INSTALLING SPLASHGUARD

After merchandisers have been leveled and re-

joined, and all drip piping, electrical and

refrigeration work has been completed, install the

splashguards. Splashguards may be sealed to the

floor using a vinyl cove base trim. The size of

trim needed will depend on how much the floor is

out of level. Note that the splashguard must be

removable to access components behind it.

1. Remove all dirt and wax, etc. from the area of

the splashguard to ensure a secure adhesion.

2. Apply a good contact cement to the trim,

allowing for proper dry-time.

3. Install trim to the splashguard so that it is

flush with floor. Do not seal trim to floor!

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

Typical

Bolt

Locations

Bolts feed

from Front

(Outside)

It is the contractor’s responsibility to

install case(s) in accordance with all local

building and health codes.

INSTALLER

REFRIGERANT

The correct type of refrigerant will be stamped

on each merchandiser’s serial plate. The case

refrigeration piping is pressurized, leak tested

and factory sealed. Before making refrigeration

hookups, depress universal line valve to ensure

that coils have maintained pressure during

shipment.

REFRIGERANT PIPING

Connection Location

The refrigerant line outlets are located under the

fixture towards the center (refer plan view ).

Insulate suction lines to prevent condensation

drippage on the floor.

Line Sizing

Refrigerant lines should be sized as shown on

the refrigeration legend that is furnished for the

store or according to ASHRAE guidelines.

Refer to data sheet included with this manual for

specific information on the case you are installing.

Oil Traps

P-traps (oil traps) must be installed at the base of

all suction line vertical risers.

Pressure Drop

Pressure drop can rob the system of capacity. To

keep the pressure drop to a minimum, keep the

refrigerant line run as short as possible using a

minimum number of elbows. Where elbows are

required, USE LONG RADIUS ELBOWS ONLY.

INSULATION

The suction and liquid lines should be clamped

or taped together and insulated for a minimum of

30 feet from the merchandiser. Additional insula-

tion for the balance of the liquid and suction lines

is recommended wherever condensation drippage

is objectionable or lines are exposed to ambient

conditions.

SUCTION LINE

• Pitch in direction of flow.

• May be reduced by one size at one third of case

run load and again after the second third. Do

not reduce below the case suction line size.

• Case suction lines

should enter at the

top of the branch

line.

LIQUID LINE

• May be reduced by one size after one half the

case run load. Do not reduce below the case

liquid line connection size.

• Take-offs to case liquid lines should exit the

bottom of the

branch liquid

line. Provide an

expansion loop

for each evapo-

rator take-off.

(Minimum 3 in.

(76 mm) loop.)

REFRIGERATION / ELECTRICAL

Refrigeration lines are under pressure and

should be depressurized before attempting to

make any connections.

WARNING

Island & Multi-deck Island

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

P/N 0446551_A 2-1

Suction Line Return

Minimum Loop

3-in. (76 mm)

Liquid Line Take Off

2-2 REFRIGERATION / ELECTRICAL

REFRIGERATION THERMOSTAT

The bulb for the optional refrigeration thermostat

is located in the discharge air of the evaporator.

The optional refrigeration thermostat is located

5 ft (1524 mm) from the left-hand end, just past

the raceway, on the serial plate side (front) of the

merchandiser.

OPTIONAL DEFROST TERMINATION

THERMOSTAT

The optional disc type defrost termination

thermostat is not adjustable. This thermostat

is clamped to the suction line of the coil on

the left-hand end of the serial plate side (front)

of the merchandiser.

DEFROST SEQUENCES

These merchandisers require defrost cycles for

proper operation. Refer to the data sheets for

application data.

The Time Clock initiates defrost. The evaporator

fans continue to circulate air across the evapora-

tor coil, melting any frost build-up. Defrost can

be terminated by either time or temperature.

Time Termination (Standard)

Should be used for the following types of instal-

lations:

1. Parallel systems with thermostat and liquid

solenoid.

2. Single compressor units with pump-down.

Temperature Termination (Optional)

Temperature termination may be used for the

following types of installations:

1. Parallel systems with EPRs or suction stop

solenoids

2. Single compressor units without pump-down

cycle.

fftime Defrost

Liquid Line

Suction Line

8 Ft Case

(2438 mm)

12 Ft Case

(3658 mm)

8 Ft Case

(2438 mm)

12 Ft Case

(3658 mm)

P/N 0446551_A WWW.HUSSMANN.COM

ACCESS TO EXPANSION VALVES AND

DRAIN LINES

Mechanical

Remove product and product racks from each end

of case. Remove refrigeration and drain access

panels (labeled). The thermostatic expansion

valve (mechanical only) and drain are located

under the deck pan at end of the case.

Electronic (Optional)

The Electronic Expansion valve master and slave

cylinder(s) are located under the deck pan on the

end of the case.

ELECTRONIC EXPANSION VALVE

(Optional)

A wide variety of electronic expansion valves and

case controllers can be utilized. Please refer to

valve and controller manufacturers’ information

sheets. Sensors for electronic expansion valves

will be installed on the coil inlet, coil outlet, and

in the discharge air. (Some supermarkets require

a fourth sensor in the return air.) Case controllers

will be located in the electrical wire-way or under

the case.

THERMOSTATIC EXPANSION VALVE

ADJUSTMENT

Thermostatic expansion valves must be adjusted

to fully feed the evaporator. Before attempting

any adjustments, make sure the evaporator is

either clear or very lightly covered with frost, and

that the fixture is within 10°F of its expected

operating temperature.

MEASURE OPERATING SUPERHEAT

1. Determine the suction pressure with an accu-

rate pressure gauge at the evaporator outlet.

2. From a refrigerant pressure temperature chart,

determine the saturation temperature at the

observed suction pressure.

3. Measure the temperature of the suction gas at

the thermostatic remote bulb location.

4. Subtract the saturation temperature obtained

in step No. 2 from the temperature measured

in step No. 3. The difference is superheat.

5. Set the superheat for 5°F to 7°F (–15°C to

–14°C) average, with a swing tolerance of no

more than +/–2°F (1°C).

Island & Multi-deck Island

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

P/N 0446551_A 2-3

Electric Drain Refrigeration

Thermostat and

Compressor Controls (S.C.)

Compressor (S.C.)

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