Hussmann RFLN Installation Manual

®

RFLN & RFMN

Freedom Line

Low or Medium Temperature

Compressor Ready

Narrow Footprint

Reach-in

Merchandisers

IMPORTANT

Keep in store for
future reference!

Manual - Installation & Operation Freedom RFLN & RFMN

Installation &

Operation Manual

Shipped With Case Data Sheets

P/N 0520677_J

July 2015

Spanish P/N 0532420

French P/N 0532421

P/N 0520677_J iii

®

TABLE OF CONTENTS

INSTALLATION

NSF Certication
Freedom Line Description
Location

........................... 1-1

Shipping Damage
Exterior Loading
Merchandisers Shipped with End Installed
Shipping Braces
Moving Merchandisers (Narrow Entrance)

................... 1-1

............ 1-1

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

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

1-2

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

1-3

Final Location ...................... 1-6

Leveling
Door Adjustment
Joining

............................ 1-7

.................... 1-7

............................ 1-8

REFRIGERATION / ELECTRICAL
/ SAFE-NET III

Refrigerant
Field Installation of Condensing Unit
About Quick Connect Couplings
Connect Lines
Insulate Refrigerant Lines
Field Wiring
Safe-NET III Display
Condensate Water and Pump
Safe-NET III User Instructions
Display
Start-Up
Temperature Adjustment
Alarms and Codes
Manual Defrost
Sensor Location
Controls and Adjustments
Merchandiser Electrical Data
Electrical Connections
Identication of Wiring

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

... 2-2

........ 2-3

...................... 2-3

............. 2-4

........................ 2-4

................ 2-4

.......... 2-4

......... 2-6

............................ 2-7

........................... 2-7

............. 2-9

................... 2-9

..................... 2-9

.................... 2-10

............ 2-11

......... 2-12

............... 2-12

.............. 2-12

FACADE AND SPLASHGUARDS

Install Facade ...................... 3-1

Installing Splashguard Brackets
Installing Splashguards

............... 3-4

Sealing Splashguard to Floor
Installing Bumpers

................... 3-6

........ 3-3

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

START UP / OPERATION

Expansion Valve Adjustment .......... 4-1

Prior to Start Up Checklist
Start Up Checklist
Defrost

............................ 4-3

................... 4-2

Checklist After 12 Hour Run Time
Load Limits
Stocking

........................ 4-4

........................... 4-4

............ 4-2

...... 4-3

Installing FDA/NSF

Required Thermometer .............. 4-4

MAINTENANCE

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

Cleaning Honeycomb Assemblies
Cleaning Stainless Steel Surfaces
Cleaning Coils

...................... 5-2

Top Mount Cleaning & Maintenance
Cleaning Under Merchandisers
Removing Scratches from Bumper

....... 5-2

....... 5-2

.... 5-3

........ 5-4

...... 5-4

SERVICE

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

Replacing Electric Defrost Heaters
Replacing Drain Pan Heater
Servicing Vertical Lighting
Servicing Doors and Frames
Repairing Aluminum Coil

............. 6-4

........... 6-4

............. 6-4

...... 6-2

........... 6-3

OPTIONAL DRIP PIPING

Waste Outlet and Water Seal ........... 7-1

Installing Drip Piping

................ 7-1

WARRANTY

IMPORTANT

KEEP IN STORE FOR FUTURE REFERENCE

Quality that sets industry standards!

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

®

®

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© 2015 Hussmann Corporation

iv Contents

REVISION HISTORY

REVISION J

Updated “Connect Lines,” Page 2-3
Insulate “Refrigerant Lines,” Page 2-4
“Run Time”, Page 4-3

* * * * * * * * * * * * * * * * * * * * * * * * * *

ANSI Z535.5 DEFINITIONS

• DANGER – Indicate[s] a hazardous
situation which, if not avoided, will
result in death or serious injury.

REVISION H

Excel Note 5.5 inch clearance, Page 1-1.

REVISION G – November 2014
Added California Warning label, Page 1-2
Added Optional Drip Piping, Page 7-1

REVISION F – May 2014
Updated Cover Page; Warning Page 2-1. Added Page 3-5
3-6. New Page 4-2

REVISION E – June 2013
Updated drawings and wording on Page 3-2 and 3-3 to
optional light channel and optional crown molding.
Set pressure contols on Page 4-1 added disconnect hoses
on Page 5-1

REVISION D – March 2013
Section 1: Revised caution box on page 1-2.
Section 2: Added leveling to condensate pan.
Section 5: Added Cleaning Coils.

REVISION C – November 2012
Section 2: Added Safe-NET startup code and optional
audible alarm

• WARNING – Indicate[s] a hazardous
situation which, if not avoided, could
result in death or serious injury.

• CAUTION – Indicate[s] a hazardous
situation which, if not avoided, could
result in minor or moderate injury.

• NOTICE – Not related to personal injury –
Indicates[s] situations, which if not avoided,
could result in damage to equipment.

REVISION B – August 2012
Section 1: Added disassembly / reassembly procedure for
tting cases through smaller doors and
passage ways.
Section 7: Added Emerson Electonic Unit Control
Instructions

REVISION A – October 2011
Original Issue

PN 052677_J

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P/N 0520677_J 1-1

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

INSTALLATION

NSF CERTIFICATION

These merchandisers are manufactured to
meet ANSI / National Sanitation Foundation

®

(NSF

) Standard #7 requirements. Proper in­stallation is required to maintain certication.
Near the serial plate, each case carries a label
identifying the type of application for which
the case was certied.

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

FREEDOM LINE DESCRIPTION

The Freedom Line RFLN and RFMN cases
are designed to be ready for remote installation
of a top-mounted air-cooled condensing unit,
such as Hussmann’s TCLA through TCMD
series of condensing units. They are controlled
by the Safe-NET III electronic control. The
case temperature is controlled by cycling the
compressor based on the discharge air
temperature input. The sensor for this input is
located above the interior top panel at the right
door. Another sensor, located on the bottom
center evaporator coil return bend, is used for
defrost termination. The Safe-NET III control
is pre-programmed for both ice cream and
frozen food operation, and is adjusted for the
required temperature by the control knob
located on the front of the controller, which is
on the top of the case.

RFLN cases running on individual condensing
units may be installed as stand-alone cases with
ends, or as a part of a lineup. When installed
in a lineup, Hussmann recommends that par­titions be installed between individual cases
to prevent frost buildup and other issues that
might result from different defrost schedules
and operating temperatures.

LOCATION

These merchandisers are designed for displaying
products in air conditioned stores where tem­perature is maintained at or below the ANSI/
NSF-7 specied level and relative humidity is
maintained at or below 55%. Placing refriger­ated merchandisers in direct sunlight, near hot
tables or near other heat sources could impair
their efciency. Like other merchandisers, these
are sensitive to air disturbances. Air currents
passing around merchandisers will seriously
impair their operation. Do NOT allow air con­ditioning, electric fans, open doors or windows,
etc. to create air currents around the merchan­disers.

To prevent sweating on the exterior surfaces
of merchandisers, there must be

clearance of 4 inches (102 mm) between

a minimum

the merchandisers and other xtures or walls.

A 5.5 inch (140 mm) space is required between
facade top and the ceiling. A louvered Facade
Panel kit is available that will allow for a top
spacing minimum clearance of 3 inches (76
mm).

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. Condensing units installed on top
of the merchandiser require air circulation to
operate properly. Blocking or restricting air
ow will adversely affect performance and may

damage the refrigeration system. If the ceiling
and/or walls are built up around the merchan­diser, allow for a sufcient gap above or behind
the merchandiser to provide adequate air cir­culation. When merchandisers are installed in a
lineup, case must be taken to ensure that warm
condenser air is not blown from one unit into
the condenser of the adjacent unit.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

1-2 InstallatIon

P/N 0520677_J U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

1-2 InstallatIon

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.

Do not store items or flammable

materials atop the unit.

Do not walk on case.

EXTERIOR LOADING

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. The carrier will supply neces­sary forms.

Concealed Loss Or Damage

When loss or damage is not apparent until after
equipment is uncrated, a claim for concealed
damage is made. Upon discovering damage,
make request in writing to carrier for inspection
within 15 days and retain all packing. The car­rier will supply inspection report and required
claim forms.

For California Businesses:

This product may contain chemicals known

to the State of California to cause cancer,
birth defects, or other reproductive harm.

This warning is the result of the California State
law known as the California Safe Drinking Water
and Toxic Enforcement Act of 1986, which is
commonly referred to as “Proposition 65.”

This warning does not mean that Hussmann
products will cause cancer or reproductive
harm, or is in violation of any product-safety
standards or requirements. As claried by the
California State government, Proposition 65
can be considered more of a ‘right to know’ law
than a pure product safety law. When used as
designed, Hussmann believes that our products
are not harmful. We provide the Proposition 65
warning to stay in compliance with California
State law. It is your responsibility to provide
accurate Proposition 65 warning labels to your
customers when necessary. For more information
on Proposition 65, please visit the California
State government website.

Do NOT walk on top of merchandisers or damage
to the merchandisers and serious personal in­jury could occur.

designed To supporT excessive exTernal
loading such as the weight of a person. Do

They are noT sTrucTurally

not store items or ammable materials atop the
case.

MERCHANDISERS SHIPPED WITH END
INSTALLED

If the case was shipped with the end installed,
two long bolts were used to hold the shipping
brace to the end. If the shipping bolts are
reinserted after removing the brace, they will
extend into the product area and may damage
the coil.

Th e s e bolTs w iTh Th e s horTer b o lTs
pr o v ided.

Th e r efore, b e sure T o replac e

Be careful not to damage the factory-installed
end while moving the merchandiser. Make sure
that tools are positioned past the end and be­neath the merchandiser’s support bar.

P/N 0520677_J 1-3

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

SHIPPING BRACES

Move the merchandiser as close as possible
to its permanent location and then remove all
packaging. Check for damage before discarding
packaging. Remove all separately packed
accessories such as kits and shelves.

Locate the shipping block in the center of the
heat exchanger (see illustration), and remove it
before piping the merchandiser. This block was
installed to minimize shipping vibration.

MOVING MERCHANDISER THROUGH
NARROW STORE ENTRANCES

Some exterior merchandiser parts may be
disassembled for transit access through small
doors or passage ways. The minimum door
opening is 36 in. x 83 in. This procedure takes
approximately 30 minutes to disassemble and
reassemble one case. Contact your Hussmann
representative to see if store merchandisers
have this kit option.

2. Remove the front bumper. Pull from the
bottom and set aside.

3. Remove Lower Front Panel

Remove the front panel as follows: remove
screws from front panel tabs, then lift the front
panel. Refer to the illustration below.

Follow the steps below to decrease the
Freedom prole for narrow access:

1. Remove the door handles.

Remove
Screws from
Door Handle

1-4 InstallatIon

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4. Remove the screws that attach the
wireway pan to the bottom assembly.

5. Detach the rubber and plastic gromets
from the wireway pan.

7. Slide the wireway pan out, and remove it
from the case. Bumper brackets and
supports are attached to wireway pan.
Removing the pan will remove the entire
assembly.

8. Remove the back, external braces from the
rear of the case as shown below. Braces will
slide straight back away from the case when
nuts and screws are removed.

6. Remove the screws that attach the
grounding lug to the wireway pan.

6 nuts and 1

bottom screw per

external brace

Bottom screw is located approximately 10
inches inboard from the rear of the case.
Bottom screw location on removed rear
brace.

P/N 0520677_J 1-5

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

9. Remove the braces and exible insulation
from the hoses at the rear of the case.

NOTE: Care must be taken to ensure that
insulation is not damaged during removal or
replacement.

10. Remove the sealing gum from around the
refrigeration tubing.

11. Pull the hoses to the inside of the case.

Do not suspend these components by their wire
conduits. The case height without these

components installed on top is 82.75 in.
(2102 mm). Case depth is 35.5 in. with handles,
raceway pan and external frames removed.

Be sure to replace all screws and to secure all
components. The condensing unit produces
vibration that can cause screws to loosen.

Check the following before the rear of the
case is positioned at its final location
according to the store plan:

Avoid bending tubing sharply to prevent
damaging the tubes.

A. Check that all wiring is secured inside of
the case and wireway.

B. Check that all hoses are tucked away.

C. Use tie-wraps to secure any loose wires
or hoses.

The electrical box, GFCI receptacle and
evaporation pan are mounted on top of the
case. They can be temporarily detached and
suspended if required to provide clearance for
door openings during shipment and installation.

1. Make sure all electrical and refrigeration is
installed and secured on the back and top
of the case.

2. Ensure refrigeration tubing is attached
sealed and insulated at the rear of the
case as shown.

Secure Flex Hoses When

Detached

1-6 InstallatIon

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3. The external braces must be reinstalled with
(6) nuts per brace, torqued to 24 foot
pounds.

4. Replace and secure condensate tubing.

FINAL LOCATION

Once the case reaches its nal location,
reassemble the wireway and door handles as
follows:

1. Reinstall wireway pan in reverse order of
removal.

2. The ground lug must be reinstalled using the
two screws provided.

3. Replace the conduit connectors and plastic
gromets to the wireway pan.

4. Replace wireway cover, bumper and door
handles.

5. Use Sealing gum around refrigeration to
seal each side of the merchandiser.

At completion of all electrical work,
installation contractor shall re-install the
front panels using care to ensure all panels
are centered and properly fastened.

Use sealing gum around refrigeration

lines both inside and outside

of the merchandiser.

P/N 0520677_J 1-7

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

LEVELING

Merchandisers must be installed level to ensure
proper operation of the refrigeration system
and to ensure proper drainage of defrost water.
When leveling merchandisers, use a carpenter’s
level as shown.

Metal leveling shims or wedges are provided
with each merchandiser for use if needed.

NOTE:

po I n t of th e store f l o or.

Be g I n lIneu p levelI n g from t h e hIghes t

Place shims under the rail and make sure that
they are positioned at a base component (cross­bar). This transfers the weight directly from the
loaded case through to the oor.

See illustration on next page

Placing shims at other locations will cause
uneven distribution of weight leading to piping
leaks, as well as sagging or wracked doors.

DOOR ADJUSTMENT

After leveling and joining the merchandisers,
adjust and level doors according to manufacturer’s
instructions shipped with each product. Factory
settings may be lost due to vibration during
shipment.

1-8 InstallatIon

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Correct Shim Location is Critical

JOINING

Sectional construction means that two or more
merchandisers may be joined in line yielding
one long continuous display requiring only one
pair of ends. Joining kits and instructions are

shipped with each merchandiser.

To join like xtures, a joining kit is required.
To join unlike xtures, or like xtures operating
at different temperatures, a 1

1

/2inch (38mm)
partition kit is required. To join same tempera­ture merchandisers on different defrost cycles,
a plexiglass partition kit is required.

all joinTs musT be air-TighT To prevenT

formaTion of ice or condensaTion.

P/N 0520677_J 2-1

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

REFRIGERANT

The correct type of refrigerant will be stamped
on each merchandiser’s serial plate. The serial
plage is located on the left-hand end of the
interior top liner.

When brazing pipes be sure to use the

insulation blanket shipped with the

merchandiser to prevent damage to

the plastic case bottom.

Refrigeration lines are under pressure.
Depressurize and recover refrigerant before
attempting any connection or repair.

Refrigerant vapor is hazardous to your health
and can cause death. Avoid breathing refrig­erant and lubrication vapor or mist. Exposure
may irritate eyes, nose and throat. If acciden­tal system discharge occurs,ventilate work
area before resuming service.

Always wear safety goggles and protective
gloves when working with refrigerants. Contact
with refrigerant may cause injury. Disconnect
hoses with extreme caution! All hoses may
contain liquid refrigerant under pressure.

Be sure that any room where you are working
is thoroughly ventilated, especially if a leak is
suspected.

Read all safety information regarding the safe
handling of refrigerant and refrigerant oil, in­cluding the Material Safety Data Sheet. MSDS
sheets can be obtained from your
refrigerant supplier.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

2-2 RefRigeRation/electRical/Safe-net iii

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REFRIGERATION / ELECTRICAL / SAFE-NET III

FIELD INSTALLATION OF CONDENSING UNIT

A mounting plate is provided on top of the
case with pilot holes that provide specic
attachment points for the condensing unit
base. The mounting plate is located above the
next to last door on the right.

Front of Case

Mounting Plate

After mounting the condensing unit, the
electrical box and GFCI receptacle must be
re-attached to the top. The condensate pan, if
provided, is packed inside the case and must
also be installed and leveled on top of the
case, then plugged into the 120V GFCI outlet
provided. The TCMA, TCMB, and TCLA
units have integral condensate pans, so an
external pan is not required.

Exact component location is not critical;
however, the components should be mounted
in the general locations shown to ensure that
electrical connections reach, and the con­densate pan has adequate air ow from the
condenser, and the Safe-NET adjustment
knob is accessible.

Evaporator

Pan

Electrical Box

GFCI Receptacle

Safe-NET
control knob on
this side of elec­trical box

Front of Case

Condensing Unit

Recommended Component Locations

P/N 0520677_J 2-3

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

ABOUT QUICK CONNECT COUPLINGS

Quick Connect ttings are provided on
both the case inlet and outlet lines, and on
Hussmann’s TCL and TCM series of con­densing units. The case and condensing unit
are pre-charged with the correct amount of
R404A refrigerant, and the lines are sealed.
Connecting the Quick Connects together
breaks the seals to connect the refrigera­tion lines of the unit to the case. The Quick
Connects must be properly torqued to avoid
refrigerant leaks.

CONNECT LINES

Mount the suction line and liquid line to the
condensing unit. When ready to connect, re­move protector caps and plugs from the Quick
Connect couplings.

Tighten a ¼ turn after the coupling bottoms
out to ensure a leak proof seal (equivalent to
the foot pounds shown below).

Coupling Foot Pounds
Size (Ft. Lbs.)

3

/8 in. 10-12

5

/8 in. 35-45

If necessary, carefully wipe coupling seats and
threaded surfaces with a clean cloth to prevent
the inclusion of dirt or any foreign material in
the system.

Lubricate male half of diaphragm and
synthetic rubber seal with refrigerant oil.
Thread the coupling halves together by hand
to ensure proper mating of threads. Use
proper size wrenches (on coupling body hex
and on union nut) and tighten until coupling
bodies “bottom” or a denite resistance is felt.

Hex Wrench
Coupling Size

3

/8 in. Male

3

/8 in. Female

5

/8 in. Male 1 1/16 in.

5

/8 in. Female 1 5/16 in.

3

/4 in.

13

/16 in.

Inlet Quick Connect

Outlet Quick Connect

Inlet Quick Connect

2-4 RefRigeRation/electRical/Safe-net iii

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INSULATE REFRIGERANT LINES

Suction lines are insulated to prevent con­densation; extra insulation is provided to
cover the eld connected tubing sections.
These exposed sections must be covered with
insulation. Check that all suction lines are
adequately covered with insulation from case
penetration to compressor; including suction
service valves as some insulation may have
been dislodged during shipping and instal­lation. Do not locate the tubing above the
electrical box in order to prevent condensation
from dripping onto electrical components.

Insulation

The disconnect switch to switch off power
to all case components and the condensing
unit is on top of the case, on the front of the
electrical box. When this switch is off, some
electrical terminals in the case wireway may
be energized. The wiring connection for the
condensing unit is provided with 5-ft leads and

1

⁄4-inch terminals. The conduit must be con-
nected to the condensing unit electrical box,
and the leads are connected to the condensing
unit input terminals. The heated condensate
pan, if provided, is plugged into the 120V
GFCI receptacle at the top of the case.

Safe-NET III DISPLAY

Insert the Safe-NET III display from the front
into the opening provided in the facade.

Compressor

FIELD WIRING

All wiring must be in compliance with NEC
and local codes. Field wiring must be sized for
component amperes stamped on the serial plate.
Actual ampere draw may be less than specied.

Terminal blocks are used for eld connection
of the 120V single phase and 208/230V single
phase power supply. The terminal blocks are
located inside the electrical box on top of the
case. The wiring diagram and circuit require­ments are provided on the Technical Data
Sheets provided with the case and condensing
unit.

CONDENSATE WATER AND PUMP

The bottom drain for defrost water from the
evaporator coil of the RLN case is connected
to an evacuation pump which uses

3

/8-inch
plastic drain tubing to pump the water to the
condensate pan on top of the case. The tubing
should be inspected through its entire length
to ensure that it has not been cut, kinked,
obstructed, or damaged during shipping and
installation.

The illustration on the next page shows the
location of the condensate pump and drain.

Blocked drain lines will cause water to back up
in the case and spill onto the floor, causing a
slip hazard.

P/N 0520677_J 2-5

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

Safe-NET III

Control

GFCI Outlet

Condensate

Evaporator Pan

Condensate Drain

Hose

Electrical Box

2-6 RefRigeRation/electRical/Safe-net iii

P/N 0520677_J

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Safe-NET III™

TEMPERATURE AND DEFROST CONTROLLER

SAFE-NET III™ USER INSTRUCTIONS

Your refrigerated case uses a Hussmann
Safe-NET™ III temperature and defrost
controller to precisely maintain the tempera­ture and prevent frost buildup on the cooling
coil. LEDs indicate when the compressor or

• Controller LEDs:

refrigeration is on, when the case is in a defrost
cycle, if the temperature is outside the desired
range, or if there is a sensor failure.

An adjustment knob allows the temperature
to be set within the congured range and can
power off the controller and compressor. Your
controller has been custom-congured to pro­vide the best temperature and defrost control
for your chilled or frozen food.

Compressor Powered On LED (green):
Lights while the compressor is running or
the refrigeration valve is open.
Defrost Cycle LED (yellow):
Lights while the refrigeration coil is de­frosting.
Temperature or Sensor Alarm (red):
Lights if the temperature is too warm or
too cold. Flashes if a sensor fails.

The front of the controller has an adjustment
knob and status LEDs. The back of the
controller has connections for sensors and
switched equipment.

The Safe-NET III controller includes the
following features and connections.

• Adjustment knob:
Adjusts the temperature setpoint.
Turn adjustment knob to OFF to turn off
refrigeration system. Unplug merchandiser
from power before servicing the unit.

• Audible Temperature Alarm (optional)
See page 2-8 for alarm settings.

• Rear connections:
– Case temperature sensor:

• Typically senses the temperature
of the air in the case.
Used by the controller to determine when
to power on or power off the compressor
or refrigeration.

– Evaporator temperature sensor:

• Senses the temperature of the
refrigeration coil.
Terminates a defrost cycle when
refrigeration coil ice melts.

– Compressor or refrigeration relay:

• Switches on the compressor or
refrigeration valve for cooling.

The evaporator fans remain ON when the
adjustment knob is in the OFF position.

P/N 0520677_J 2-7

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

DISPLAY

The display includes three red LEDs and two
digits for temperature, defrost status, and error
codes.

The three display LEDs are red; their behavior
matches the LEDs on the controller.

START-UP

1. After the toggle switch is turned on, fans and
lights will energize immediately.

The OFF Position does not disconnect line

voltage to the input terminal blocks.

2. After turning on the disconnect switch, wait
for the self check to complete. During the
self check, each LED ashes for one second,
then all LEDs turn on for two seconds. If
the LEDs do not ash, make sure the ad­justment knob is not in the Off position.

• After the self check, all LEDs turn off
until the compressor starts. There may be a
delay before the compressor starts. If the red
Temperature or Sensor Alarm LED stays
on after the self check.

• The green Compressor Powered On LED
turns on when the compressor starts.

3. The compressor will continue to run until it
reaches its cut-out temperature (pulldown).
Door and frame anti-sweat heaters will
energize after the evaporator temperature
reaches a stable operating temperature, this
may take 30 minutes or longer.

Product will be degraded and may spoil if

allowed to sit in a non-refrigerated area.

NOTE: Do NOT load product until AFTER
merchandiser operates for 24 hours and reaches
desired operating temperature.

1. The merchandiser temperature displays at

startup. The initial defrost starts twelve hours
later. During defrost, the display shows “df.”
This reading will remain displayed during defrost
and until it times out, even though the refrigera­tion mode has been initiated. (The green LED
will be lit.)

2. The compressor will start after a 30 second delay

once power is applied.

3. The compressor will continue to run until it

reaches its cut-out temperature (Pulldown).

4. The refrigeration cycle will continue for the next

subsequent scheduled (24-hours) or demand
defrost.

5. The above process will repeat (steps3 and 4)

until the power is interrupted.

6. If power stops, the process will start over at step

1, and the time to subsequent defrost will reset.

7. Medium temperature is the same except for a

60-minute time terminated defrost

2-8 RefRigeRation/electRical/Safe-net iii

P/N 0520677_J

U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

Safe-NET

Safe-NET

Low Temperature Freedom Safe-NET III Settings

Dial

Discharge

air Cut-In

Discharge

air Cut-Out

Avg Discharge Air

Temperature

Product Temperature

Range
0 Off
1 0 -6 -2 -5 to 10
4 -8 -14 -6 -11 to 5
7 -17 -23 -14 -18 to 0

Medium Temperature Freedom Safe-NET III Settings

Dial

Discharge

air Cut-In

Discharge

air Cut-Out

Avg Discharge

air Temperature

Product Temperature

Range
0 Off
1 38 32 36 32 to 42
4 35 29 33 29 to 39
7 33 27 31 27 to 37

P/N 0520677_J 2-9

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

TEMPERATURE ADJUSTMENT

Rotate the adjustment knob counter clockwise
for a warmer setpoint or clockwise for a colder
setpoint.

• While the temperature is being adjusted, the
optional display shows the setpoint (cut out
value). A few seconds after the temperature
is set, the display reverts to showing the
sensed temperature in the merchandiser.

ALARMS AND CODES

Flashing TemperaTure or sensor alarm
leD, e1 or e2

Alarm Settings

Low Temperature –7°F to 10°F
Medium Temperature 43°F to 48°F

Alarm settings vary depending on temperature
control setting. The Safe-NET control features
an alarm delay to allow for stocking, pulldown
after defrost, and startup.

MANUAL DEFROST

4

5

3

2

1

Warm

6

7

I

I

Cold

Note:

This procedure initiates
a manual or forced
defrost.

4

5

3

2

1

I

Warm

6

7

I

Cold

If the Temperature or Sensor Alarm LED (red)
on the controller and display is ashing, a
temperature sensor has failed. The display
shows E1 if the case sensor has failed or E2 if
the evaporator sensor has failed.

If the merchandiser sensor fails, refrigeration
will run continuously. Turn off, or repeat a duty
cycle of a few minutes on and a few minutes off.

When the Safe-NET control is powered up, a
two-digit code will be displayed indicating that
the current settings are installed.

Safe-NET Status Code

Low Temperature 68
Medium Temperature 69

4

5

3

2

1

Warm

6

7

I

I

Cold

IMPORTANT: Return the control knob to its
original setting (Step1) once the manual de­frost has been initiated.

2-10 RefRigeRation/electRical/Safe-net iii

P/N 0520677_J

U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

8

9

10

11

P/N 0520677_J 2-11

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

1. The Safe-NET III Controller controls refrig-

eration temperature. This is factory installed in
the control panel. Adjust this control knob to
maintain the discharge air temperature shown.
Measure discharge air temperatures at the
center of the honeycomb.

For low temperature models, defrosts are time
initiated and temperature terminated. The de­frost setting is factory set as shown.

To ensure a thorough defrost, the defrost must
be terminated by the temperature termination
setting — not by time.

For medium temperature models, defrost is
time initiated and time terminated.

— LOCK OUT / TAG OUT —
To avoid serious injury or death from electrical
shock, always disconnect the electrical power
at the main disconnect when servicing or
replacing any electrical component. This
includes, but is not limited to, such items as
doors, lights, fans, heaters, and thermostats.

2-12 RefRigeRation/electRical/Safe-net iii

P/N 0520677_J

U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

ELECTRICAL CONNECTIONS

ALWAYS CHECK THE SERIAL PLATE FOR

COMPONENT AMPERES

.

All wiring must be in compliance with NEC

and local codes.
Electric Defrost is standard for low tempera­ture merchandisers and requires temperature
termination. Off Time Defrost is standard for
medium temperature merchandisers and is time
terminated.

When two or more merchandisers with full
length wireways are installed in line, remove the
splashguards, end caps and wireway covers, and
install the nipple and nuts (supplied) providing
electrical passage from one merchandiser to the
next. Following NEC and local codes is the

responsi bility of the electrical contractor.

IDENTIFICATION OF WIRING

Leads for all electrical circuits are identied by

MERCHANDISER ELECTRICAL DATA

colored plastic bands. These bands correspond

to the color code sticker (shown below) located
Merchandiser data sheets for specic models

inside the merchandiser wireway.
are shipped with this manual. The data sheets
provide merchandiser electrical data, standard
electrical schematics, parts lists and performance
data. Refer to the merchandiser data sheets and

merchandiser serial plate for electrical infor­mation. Refer to the separate wiring diagrams
shipped with the case for specic information
about the merchandiser and any optional wiring
kits that may have been applied.

Terminal block NOT for case-to-case wire

connection.

IN STA LLER

It is the contractor’s responsibility to install
merchandiser(s) in accordance with all local

building and health codes.

Leads for all electrical circuits are identified by a colored plastic band: neutral wire for each circuit has either
White insulation or a White plastic sleeve in addition to the color band.

Pink ...........RefRig. theRmoStat low temP. oRange oR

light Blue ...RefRig. theRmoStat noRm temP. tan ......... lightS

DaRk Blue .... DefRoSt teRm. theRmoStat maRoon .... RecePtacleS

PuRPle ........anti-Sweat heateRS Yellow* ... DefRoSt heateRS, 120V

BRown ........fan motoRS ReD* ....... DefRoSt heateRS, 208V

gReen* .......gRounD

WIRING COLOR CODE

*eitheR coloReD SleeVe oR coloReD inSulation

ELECTRICIAN NOTE: Use copper conductor wire only.

CASE MUST BE GROUNDED

theSe aRe maRkeR coloRS wiReS maY VaRY.

P/N 0520677_J 3-1

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

FACADE AND SPLASHGUARD

INSTALL FACADE

Refer to the Hinge Location illustration to
determine where hinges will be positioned on
the top of the merchandiser.

A

Notice that hinge position will vary with the
number of doors, or length, of the merchan­diser.

A

A

Facade Hinge Locations

3-2 Facade and SplaShguard

U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COMP/N 0520677_J

Identify the corresponding positions on the
facade panel, then fasten the hinges to the
facade panel with provided screws.

Fasten Hinges to Facade

Attach reinforcement straps to the Facade

condensing unit and the electrical box. If
necessary, the electrical box can be relocated.

Fasten Reinforcement Straps to Facade

Panel with provided screws.

Position the facade centered on case length
and ush with the fascia as shown in the side
view. below. One hinge will be between the

Fasten Facade and Baffle to Merchandiser

Fasten the hinge. Fasten the reinforcement
straps after hinges are attached using provided
screws.

Position Facade (Optional Light Channel)

Facade is centered on case length and recessed
if optional light channel is provided as shown
in side view below.

Position Facade

P/N 0520677_J 3-3

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

Position the facade light channel (if provided)
as shown below. Fasten to merchandiser using
provided screws.

Position Facade

The end view below shows the correct place­ment of the light channel, facade, hinges and
supports.

INSTALLING SPLASHGUARD BRACKETS

1. Attach splashguard retainer and splashguard
retainer support to splashguard support
bracket using two screws per bracket.

2. Install splashguard support brackets

before pIpIng case. The leveling brackets

have a maximum extension of one(1) inch
(25mm) for uneven oors.

DO NOT

br a c kets.

place shims under splashguard

End View of Facade

3-4 Facade and SplaShguard

U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COMP/N 0520677_J

INSTALLING SPLASHGUARDS

The splashguard is shipped inside each
merchandiser. after merchandisers have
been leveled and joined, and all drip piping,
electrical and refrigeration work has been
completed, re-install the front color panel,
then install the splashguards.

First, position top of splashguard over the top
edge of the bracket; second, push the lower
edge of the splashguard toward the bottom of
the bracket until it snaps into place.

Splashguard

Joint

Splashguards are joined with a
galvanized metal splice connector that
comes with the joint kit. Join the
splashguards before installing on case.

Splashguard
Retaining
Bracket

Splashguard

Splice Connector

Side
Detail

P/N 0520677_J 3-5

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

SEALING SPLASHGUARD TO FLOOR

if required by local sanitation codes, or if
desired by the customer, plastic splashguards
may be sealed to the floor using silicone type
sealer. The amount needed will depend on how
much the floor is out of level.

• Remove all dirt, wax and grease from the area
of the splashguard where adhesion will be
necessary. This is to ensure a good, secure
installation.

• Apply a good silicone type sealer along the
bottom of the splashguard. Sealant must be
removed and replaced when servicing.

Splashguard

Silicone-type

Sealer

OptiOnal stainless steel 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.

To install the trim to the splashguard:

• Remove all dirt, wax and grease from the
area of the splashguard where adhesion will be
necessary. This is to ensure a good and secure
installation.

• Apply a good contact cement to the cove
trim and allow proper drying time according
to the directions supplied with the cement.

• Install the trim to the splashguard so that it
is lying flush with the floor. Do not seal the

trim to the floor.

• If required by local health codes Cove Trim

may be sealed to the floor using a silicone type
sealer. Sealant must be removed and replaced
when servicing.

Splashguard

Cement

Cove Trim

3-6 Facade and SplaShguard

U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COMP/N 0520677_J

INSTALLING BUMPERS

Offsetting the bumpers and top rails helps to
disguise the joint locations, giving the lineup
a smoother look.

Begin at the left end of the line-up. A starter
bumper is factory-installed with end kits. Insert
the internal joint trim, then add the full-length
bumper.

Align each bumper section with its retainer and
push into place, working from the end of the
lineup. Install full length bumpers and internal
joint trims offset across joints. Make sure that
no gaps exist between sections. Continue in­stalling bumpers the length of the line up.

Do NOT install the last bumper sections at this
time. These sections will be installed in the last
step.

Once all except the last section of bumper have
been installed, refrigerate the case line-up for at
least six (6) hours. The last sections of bumper
should be kept inside a refrigerated case or
cooler during this time to allow the bumpers to
contract.

Before installing the last full-length section,
measure the remaining space. Use a miter box
and ne-tooth saw to cut last bumper to length.
Install the last section.

Remove protective lm from
bumpers once installation is
complete.

Optional end bumpers are
factory-installed.

P/N 0520677_J 4-1

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

START UP / OPERATION

EXPANSION VALVE ADJUSTMENT

Expansion valves must be adjusted to fully feed
the evaporator. Before attempting to adjust
valves, make sure the evaporator is either clear
or only lightly covered with frost, and that the
merchandiser is within 10 deg F (6.5 deg C)
of its expected operating temperature. Adjust
valves as follows:

Attach two sensing probes (either
thermocouple or thermistor) to the
evaporator. Position one under the
clamp holding the expansion valve
bulb; securely tape the other to the
coil inlet line.

”

Some “hunting

of the
expansion valve is normal. The
valve should be adjusted so that
during the hunting the greatest

difference between the two
probes is 3–5degf (1.7–2.8degc).

With this adjustment, during a por­tion of the hunting the temperature
difference between the probes will
be less than 3degF (1.7degC) and
at times 0.

Make adjustments of no more than

1

/4 turn for Balanced Port TEV
and 1/2turn at a time for other
valve models. Wait at least 15 min­utes before re checking the probe
temperature or making further ad­justments.

Component Location in

RL / RM / RLN /

RLNI Models

4-2 Start up

P/N 0520677_J U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

START UP CHECKLIST

Start up should be performed

only by a qualified technician.

PRIOR TO START UP CHECKLIST

• Is the case connected to a power supply as
specied on the nameplate?

• Is the power on at the breaker panel?

• Are the doors properly torqued? Are they
self closing? Check each door from a fully
open position and from about a 1-inch open
positions.

• Are the evaporator fans plugged in? Do they
rotate freely? (The fans can be inspected by
lifting the deck pans in the bottom of the
cases. Manually rotate each fan to conrm
it is free and visually inspect to conrm that
each fan is plugged into its receptacle.)

• Verify that refrigeration line shutoff valves
are in the back-seated (open) position.

• Check that the Safe-NET control knob is in
the correct position:

Low temperature:
7 for ice cream and 1 for frozen food
Medium temperature:
7 for colder, 1 for warmer
The unit will shut off when the knob is set to 0.

• Once the case is considered ready for start up,
move the main switch on the electrical box to
the “on” position.

This switch is located on the front of the

electrical box, on the top of the case. This
toggle switch turns on the power to the
condensing unit, and all case electrical
components, including anti-sweat heaters,
lights and fans.

• Check the reading on the Safe-NET III
display; it should be displaying the case
temperature. The display is located in the
center of the front of the facade above the
doors. The displayed temperature will show
the merchandiser’s discharge air temperature.

• Set high and low pressure controls according
to the merchandiser’s data sheet.

• Check the reading on the Safe-NET III
display; it should be displaying the case
temperature. The display is located in the
center of the front of the facade above the
doors. The displayed temperature will show
the merchandiser’s discharge air temperature.

• Listen for any unusual sounds or events. For
example: evaporator fan blade interference,
compressor trip on overload, or high head
due to excessive ambient temperature, circuit
breaker trip, etc.

• Check the fan at each door to ensure all
fans are running. The discharge air output
at the top inside front of the case should be
relatively even across the length of the case
(honeycomb area).

P/N 0520677_J 4-3

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

DEFROST

Defrost will occur 12 hours after switching the
disconnect switch to the ON position. Defrost
can be set to any time desired by switching the
unit off, then back on again, 12 hours before
the desired defrost time. “Df” is displayed on
the Safe-NET display during defrost. It will
show the discharge air temperature when the
evaporator coil has returned back to stabilized
operating temperature.

During defrost, the condensate pump will
pump defrost water to the condensate pan
located at the top of the merchandiser. On low
temperature cases, the fans shut off during
defrost, and electric defrost heaters energize to
melt the frost off the evaporator coil. Defrost
terminates when the evaporator coil reaches
approximately 48°F. On medium temperature
cases, the fans runs continuously, there are no
defrost heaters, and defrost is time-terminated
after 60 minutes.

CHECKLIST AFTER 12 HOUR RUN TIME

• Are all inspection plates and covers properly
replaced?

• Inspect for any water accumulation result­ing from incorrect or unsealed penetrations
where electrical or other lines pass through
the case insulated walls.

• Check that the lights come on when the light
switch is in the on position.

• Check that the condensate pump and conden­sate fan turns on. Condensate pump pumps
water to the condensate pan during defrost
Check to ensure there are no leaks. The pump
will be on for only a few seconds. If conden­sate pan does not energize, GFCI may need
to be reset.

• See the merchandiser’s Data Sheet Set for
refrigerant settings and defrost requirements.
Bring merchandisers down to the operating
temperatures listed on the data sheet.

• Check case temperature.

• Verify that the fans are running. (The fans
will be off if the case is in a defrost cycle.
They will come back on after the completion
of this cycle.)

• Initiate a defrost cycle and ensure the heaters
are working properly. See the Safe-NET III
instructions for how to force a defrost cycle.
Check the amp draw at the terminal block,
located in the front electrical raceway, just
below the right most door of the case.)

• Check the door operation again, to ensure
they close properly once the case is down to
operating temperature.

Do not store items or flammable

materials atop the unit.

Do not walk on case.

4-4 Start up

P/N 0520677_J U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

LOAD LIMITS

Shelf life of perishables will be short if load limit
is violated. at no time should merchandisers

be stocked beyond the load limits indicated.

Proper rotation of product during stocking is
necessary to prevent product loss. Always bring
the oldest product to the front and set the new­est to the back.

Air disChArge And return flues must re-

mAin open And free of obstruCtion At All
times to provide proper refrigeration and air

curtain performance. Do not allow product,
packages, signs, etc. to block these grilles. Do
not use non-approved shelving, baskets, display
racks, or any accessory that could hamper air
curtain performance.

Do not prop doors open while stocking. And
keep the doors closed as much as possible to
prevent coil frosting and high merchandiser
temperature.

STOCKING

Product should NOT be placed in merchandis­ers until all refrigeration controls have been
adjusted and merchandisers are at proper oper­ating temperature.

All shelves and the lower deck are intended to
display product. Shelf height is adjustable in
one inch increments. Spacing of 12inches is
recommended for most applications. Maximum
load per shelf is 170pounds. Merchandisers
may be ordered with optional “L” shaped wire
shelves.

INSTALLING FDA/NSF REQUIRED
THERMOMETER

The following pages provide the same informa­tion that ships with the thermometer.

This requirement does not apply to display
refrigerators intended for bulk produce (refer
to Page 1-1).

Please note that the tape cannot be exposed
after installation.

P/N 0520677_J 4-5

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

Sugge sted Mount ing Locati on s

This is an NSF-7 &

US FDA Food Code

Required

Thermometer

Thermometer — Hussmann Part TM.4911251

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

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

© 2007 Hussmann Corporation

in Single De ck G lass Front

Impact Me rcha ndis ers

Package Guard,
Facin g Out

Doub le Stic k Tape

Flexible Plastic
Fits in Price Tag
Moldings

Hussmann P/N 0429971_C 10/2007

End Pane l

Price Ta g
Moldin g

Suggested Mount ing Locati ons

in Multi-deck Mercha ndis ers

4-6 Start up

P/N 0520677_J U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

Important – Please read!

Food and Drug Administration (US FDA) Food Code [ http://www.fda.gov/ ]

National Sanitation Foundation (NSF / ANSI) Standard 7 [ http://www.nsf.org/ ]

This thermometer is provided in response to United States

and

Each installation will be different

depending on how the unit is

stocked, shopping patterns in the

department and ambient conditions

of the store. The suggested loca-

tions provided herein are possible

locations. It is the responsibility of

the purchaser / user to determine

the location within the food storage

area of the unit that best meets the

code requirements above.

The thermometer may need to be

moved several times to find the

warmest location. Mounting options

include flexible plastic for price tag

molding application, magnet

applied to back of flexible plastic for

steel end wall, and double stick

tape. Tape must not be exposed

after installation.

Questions about either code should

be addressed to local agencies or

other appropriate officials.

Keep with merchandiser

or give to store manager.

DO NOT DESTROY.

P/N 0520677_J 5-1

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

MAINTENANCE

CARE AND CLEANING

Long life and satisfactory performance of any
equipment is dependent upon the care it re­ceives. To ensure long life, proper sanitation and
minimum maintenance costs, these merchandisers
should be thoroughly cleaned, all debris removed and
the interiors washed down, weekly.

Always*Clear™ Glass

Wipe inside of glass with isopropyl alcohol and
a soft cloth. Allow surface to dry before closing
door. Use of other cleaners or abrasives may
damage the Always*Clear surface, and/or void
the warranty. Refer to manual that ships with
doors..

Exterior Surfaces

The exterior surfaces should be cleaned with a mild
detergent and warm water to protect and maintain
their attractive nish.

ers or scouriNg pads.

Never use abrasive cleaNs-

Interior Surfaces

The interior surfaces may be cleaned with most
domestic detergents, ammonia based cleaners
and sanitizing solutions with no harm to the
surface.

Do No t Use:

• Abrasive cleansers and scouring pads, as
these will mar the nish.

• Solvent, oil or acidic based cleaners on any
interior surfaces.

• Ammonia based cleaners on acrylic
surfaces.

Do :

• Remove the product and all loose debris to
avoid clogging the waste outlet.

• Store product in a refrigerated area such as
a freezer. Remove only as much product as
can be taken to the freezer in a timely
manner.

• First turn off refrigeration, then disconnect
electrical power.

• Before washing, disconnect hose from con­densate pan on top of case, and discharge
water into a drain.

• Thoroughly clean all surfaces with soap
and hot water. do Not use steam or high

water pressure hoses to wash the
iNterior. These will desTroy The

merchandisers’ sealing causing leaks
and poor performance.

• Remove screws and lift hinged fan plenum
for cleaning.

plenum afTer cleaning merchandiser.

Be sure To reposiTion The fan

• Take care to minimize direct contact be­tween fan motors and cleaning or rinse
water.

• Rinse with hot water, but do NOT ood.

Never iNtroduce water faster thaN the

waste outlet caN remove it.

• Allow merchandisers to dry before

resuming operation.

• After cleaning is completed, turn on power
and refrigerant to the merchandiser.

• Verify that merchandiser is working
properly.

SHUT FANS OFF

Do NOT allow cleaning agent or cloth to

contact food product.

Product will be degraded and may spoil if

allowed to sit in a non-refrigerated area.

DURING CLEANING PROCESS.

5-2 Maintenance

U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

P/N 0520677_J

Fan Plenum

To facilitate cleaning, the fan plenum is hinged
and also fastened with screws at each end.
After cleaning be sure the plenum is properly
lowered into position and that screws are rein­stalled

or producT loss will resulT due to

improper refrigeration.

CLEANING HONEYCOMB ASSEMBLIES

Honeycombs should be cleaned every six
months. Dirty honeycombs will cause mer­chandisers to perform poorly. The honeycombs
may be cleaned with a vacuum cleaner. Soap
and water may be used if all water is removed
from the honeycomb cells before reassembling.
Be careful not to damage the honeycombs.

1. Remove the sheet metal screws located in
the front metal retainer which holds the
honey comb assembly in place.

CLEANING STAINLESS STEEL

SURFACES

Use non-abrasive cleaning materials, and al­ways polish with grain of the steel. Use warm
water or add a mild detergent to the water and
apply with a cloth. Always wipe rails dry after
wetting.

Use alkaline chlorinated or non-chlorine
containing cleaners such as window cleaners
and mild detergents. Do not use cleaners
containing salts as this may cause pitting and
rusting of the stainless steel nish. Do not use
bleach.

Clean frequently to avoid build-up of hard,
stubborn stains. A stainless steel cleaning
solution may be used periodically to minimize
scratching and remove stains. Rinse and wipe
dry immediately after cleaning. Never use hy­drochloric acid (muratic acid) on stainless steel.

2. Lift the honeycomb assembly out of the
L-bracket to remove it.

3. Clean and dry the honeycomb.

4. After cleaning, reassemble in reverse order
of removal.

Inte rnal

Frame

SIDE VIE W

Hone ycomb

Top Pane l

Screw

Adhe sive

Inte rior
Top Pane l

Hone ycomb
Reta iner

CLEANING COILS

NEVER USE SHARP OBJECTS AROUND
COILS. Use a soft brush or vacuum brush to
clean debris from coils. Do not puncture coils!

Do not bend ns. Contact an authorized
service technician if a coil is punctured,
cracked, or otherwise damaged.

ICE in or on the coil indicates the refrigeration
and defrost cycle is not operating properly.
Contact an authorized service technician to
determine the cause of icing, and to make ad­justments as necessary. To maintain product
integrity, move all product to a cooler until
the unit has returned to normal operating
temperatures.

P/N 0520677_J 5-3

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

Mimimum Suggested Cleaning and Maintenance Frequency

with Separate TOP-MOUNTED Condensing Unit*

Average Total
Type of Maintenance Maintenance Estimated
Case Scheduled Frequency Duration Maintenance
Component Maintenance (Times / Year)* (hours)* Time/Year (hours)

Evaporator Coil / Case Interior

Honeycomb

Return Air Grille

Drip Piping

Condenser Coil

Condensate Evaporation
Pan

Condensate Evaporation
Pan Heater

Condensate Pump

Compressor

Electromechanical
Thermostats

Compressor Power Relays

Cleaning

Cleaning

Cleaning

Cleaning

Cleaning

Cleaning

None

Cleaning

None

Replacement

Replacement

1

1

12

6

4

4

N/A

6

N/A

0.2

0.2

2

0.05

0.1

0.1

0.1

0.2

N/A

0.05

N/A

1

1

2

0.05

1.2

0.6

0.4

0.8

N/A

0.03

N/A

0.2

0.2

*This table is provided for reference only. The suggested maintenance frequency is
the minimum required to reduce unexpected equipment failure. Performance and
efciency may be enhanced with more frequent cleaning. Individual cleaning
schedules must take into account local environment and usage, as well as all
applicable health codes.

5-4 Maintenance

U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

P/N 0520677_J

CLEANING UNDER MERCHANDISERS

Remove splashguards not sealed to oor. Use
a vacuum with a long wand attachment to re­move accumulated dust and debris from under
the merchandiser.

Do NOT use HOT water on COLD glass surfaces.

This can cause the glass to shatter and could

result in personal injury. Allow glass doors to

warm before applying hot water.

REMOVING SCRATCHES FROM BUMPER

Most scratches and dings can be removed
using the following procedure.

1. Use steel wool to smooth out the surface
area of the bumper or top rail.

2. Clean area.

3. Apply vinyl or car wax and polish surface
for a smooth glossy nish.

P/N 0520677_J 6-1

SERVICE

REPLACING FAN MOTORS AND BLADES

See cross section for location of evaporator
fans. Should it ever be necessary to service
or replace the fan motors or blades be certain
that the fan blades are re-installed correctly.

For access to RLN / RMN fans:

1. Turn off power.

2. Remove bottom display pans.

3. Disconnect fan from wiring harness.

4. Remove fan blade.

Always disconnect the electrical power
at the main disconnect when servicing or
replacing any electrical component. This
includes, but is not limited to, such items
as fans, heaters, thermostats and lights.

5. Remove screws holding fan motor/bracket
assembly to plenum and remove assembly.

6. Replace fan motor/bracket assembly and
reinstall screws.

7. Reinstall fan blade.

8. Reconnect fan to wiring harness.

9. Turn on power.

10. Verify that motor is working and blade is
turning in the correct direction.

11. Close air gaps under fan plenum. Warmer
air moving into refrigerated air reduces
effective cooling. If the plenum does not
rest against the case bottom without gaps,
apply foam tape to the bottom of the fan
plenum to reduce improper air movement.
Use silicone sealant to close other gaps.

12. Replace display pans. Bring merchandiser
to operating temperature before restocking.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

Hussmann recommends against frame heater
cycling with Innovator doors to prevent door
seals from freezing to the frames and tearing.

6-2 Service

P/N 0520677_J U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

Product will be degraded and may spoil if al-

lowed to sit in a non-refrigerated area.

5. Position new heater in bracket.

6. Bend tabs back to vertical to hold heater in
bracket.

7. Replace the coil cover and lower fan plenum.

REPLACING ELECTRIC DEFROST
HEATERS

Electric defrost requires a heater on the front
and rear of the coil as shown. The heaters are
held in place by tabs in the coil brackets.

Front Defrost Heater

1. Disconnect power.

2. Lift fan plenum up and back to access the
heater.

3. Bend tabs holding heater to horizontal.

4. Remove heater from coil bracket.

Electric Defrost

8. Turn on power.

9. Verify that heater is working correctly.

10. Close air gaps under fan plenum. Warmer
air moving into refrigerated air reduces
effective cooling. If the plenum does not
rest against the case bottom without gaps,
apply foam tape to the bottom of the fan
plenum to reduce improper air movement.
Use silicone sealant to close other gaps.

11. Replace display pans. Bring merchandiser
to operating temperature before
restocking.

Rear Defrost Heater

1. Disconnect Power.

2. Remove coil cover.

Back Heater

3. Remove clips holding heater to coil tube.

4. Remove heater from slots in coil bracket.

5. Position new heater in slots.

Front Heater

P/N 0520677_J 6-3

6. Replace clips.

7. Replace the coil cover.

Always disconnect the electrical power

8. Turn on power.

at the main disconnect when servicing or
replacing any electrical component. This

9. Verify that heater is working correctly.

includes, but is not limited to, such items
as fans, heaters, thermostats and lights.

10. Replace display pans. Bring merchandiser
to operating temperature before
restocking.

REPLACING DRAIN PAN HEATER —
ELECTRIC AND GAS DEFROST
(Low Temperature Only )

The drain pan heater is located as shown below.

Remove Drain Pan Heater

1. Disconnect power.

2. Pull heater out from
under jiffy clips.

3. Position new heater
under jiffy clips. Be
sure offset is properly
positioned around
the drain. If jiffy clips
are removed, make cer-

tain sealer is replaced.

4. Reconnect power.

5. Verify that heater is
working correctly.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

6-4 Service

P/N 0520677_J U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

SERVICING VERTICAL LIGHTING

Refer to door manufacturer’s manual for
servicing of vertical lamps.

SERVICING DOORS AND FRAMES

See door manufacturer’s service manual for
servicing information. One manual is shipped
with each merchandiser.

REPLACING DOOR OR DOOR FRAME PARTS

Parts for Reach-in doors and door frame
assemblies must be ordered direct from the
door manufacturer This includes the glass
doors, door frame assemblies, lamps, ballasts,
door handles, hold open slides, and power
cords. Refer to specic warranty supplied with
the door. The manufacturers have a warranty
against moisture penetration, a warranty
against tempered glass breakage, and a
warranty on ballasts. Lamps are not covered by
Hussmann or the door manufacturer.

X-Ergon
1570 E. Northgate
P.O. Box 2102
Irving, TX 75062
Phone: [phone]

NOTE:
Hussmann Aluminum melts at 1125°F (607°C)
Aladdin 3-in-1 rod at 732°F (389°C)
X-Ergon Acid core at 455°F (235°C)

Technique:

1. Locate Leak.

2. REMOVE ALL PRESSURE.

3. Brush area UNDER HEAT.

4. Use PRESTOLITE TORCH ONLY.
Number6 tip.

5. Maintain separate set of stainless steel
brushes and USE ONLY ON
ALUMINUM.

REPAIRING ALUMINUM COIL

The aluminum coils used in Hussmann
merchandisers may be easily repaired in the
eld. Materials are available from local
refrigeration wholesalers.

Hussmann recommends the following solders
and technique:

Solders

Aladdin Welding Products Inc.
P.O. Box 7188
1300 Burton St.
Grand Rapids, MI 49507
Phone: [phone]

6. Tin surface around area.

7. Brush tinned surface UNDER HEAT,

thoroughly lling the open pores around

leak.

8. Repair leak. Let aluminum melt solder,
NOT the torch.

9. Don’t repair for looks. Go for thickness.

10. Perform a leak check.

11. Wash with water.

12. Cover with a good exible sealant.

P/N 0520677_J 7-1

OPTIONAL DRIP PIPING

WASTE OUTLET AND WATER SEAL

Drip piping must be installed for cases with­out evaporation pans. Drip piping is located
between the front merchandiser base and the
splashguard xture and runs parallel to the mer­chandiser (see Data Sheet for exact locations).

INSTALLING DRIP PIPING

Poorly or improperly installed drip pipes can
seriously interfere with the merchandiser’s op­eration and result in costly maintenance and
product losses. Please follow the recommenda­tions listed below when installing drip pipes to
ensure proper installation.

• Never use drip piping smaller than the
nominal diameter of the pipe or water seal
supplied with the merchandiser.

Splashguard brackets MUST be installed

before piping merchandiser.

• Provide a suitable air break
between ood rim of the
oor drain and outlet of
drip pipe. To meet code on
low base merchandisers, it
may be necessary to install
a eld-supplied drip pipe
reducer. An alternative is
to cut the last section of
drip pipe at an angle.

• When connecting drip piping, the water
seal must be used as part of the drip piping
to prevent air leakage or insect entrance.
Never use two water seals in series in any
one drip pipe.

ries will cause an air lock anD
prevent Draining.

Double water seals in se-

• Pitch the drip piping in the direction of
ow. There should be a minimum pitch of

1

/4in. perft (20mm per 1m).

• Avoid long runs of drip piping. Long runs
make it impossible to provide the pitch
necessary for good drainage.

• Prevent drip pipes from freezing sweating
or freezing:

A. Do NOT install drip pipes in contact

with uninsulated suction lines. Suction lines
should be insulated with a non-absorbent
insulation material.

B. Where drip pipes are located in dead air

spaces, such as between merchandisers or
between a merchandiser and a store wall,
provide means to prevent drip pipe from
sweating. External ventilation fans may be
required to prevent sweating.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

7-2 Service

Do NOT use Thread Sealer on Drain Fitting!

(Drain Fitting)

Factory Installed (four turns)

Approx.

1

/

2

in. Clearance to Floor

1. Tee is factory-installed. If adjustment is necessary,

tighten factory-installed tee no more than ¼
turn. Do not overtighten threads, or the drain
tting or tee may become damaged.

2. Do NOT use thread sealer on ABS drain tting.

If sealer is used the ABS drain tting may crack
or leak! (If a tee needs to be installed it should be

hand tightened) Do not overtighten threads.

2. Dry t the supplied
water seal / trap to en­sure approximately

1

/2
in. of clearance from the
bottom of the trap to the
oor as shown.

Merchandiser

Bottom

Factory-Installed

Tee Fitting

NOTE: It may be necessary to rotate water
seal (trap) inside the tee a few degrees to en­sure clearance at two locations. There must be
clearance 1) between the bottom of the water
seal and the oor, and 2) between the top of
the water seal outlet and the bottom of the
merchandiser. Do not over-rotate or gravity seal
may be compromised. Always rotate trap bot­tom toward merchandiser support rail.

Front of

Merchandiser

Waste
Outlet

Maintain Clearance

to Bottom of Case

Field-Installed

Water Seal

Floor

Rotate Water Seal
towards back of
Merchandiser if required

1/2-in.
Clearance to Floor

P/N 0520677_J U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

P/N 0520677_J 7-3

3. Install remaining PVC drain parts using
recommended PVC cleaner, primer and
cement per manufacturer’s recommendations.

4. Thread plug into the adapter until snug but
not to exceed four full rotations.

It is the installing contractor’s responsibility

to consult local agencies for

local code requirements.

5. Installed drip piping may require additional
support depending on the number and lo­cation of the hub oor drains. The installer
should always provide adequate support to
all drip piping arrangements to prevent ex­cess stress on all drip piping
components. The installer must provide
additional support when “evac” type waste
water systems are applied.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in

7-4 Service

The instructions on the following pages detail the
installation and operation of the Electronic
Unit Controller. These instructions are re­printed with permission from: Emerson
Climate Technologies, Inc.

Notes:

P/N 0520677_J U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

Application Engineering

BULLETIN

Application Engineering

BULLETIN

AE8-1376 R2

AE8-1376 R2

September 2013

Electronic Unit Controller

TABLE OF CONTENTS

Section Page Section Page

Safety

Safety Instructions ....................................................2

Safety Icon Explanation ...........................................2

Instructions Pertaining to Risk of Electrical Shock,

Fire, or Injury to Persons ..........................................3

Safety Statements ....................................................3

1. Introduction and Features .....................................4

1.1 Technical Specifi cations ..................................5

1.2 Pressure Probe Error Bypass .........................5

1.3 Bump Start ......................................................5

2. Installation and Controller Operation Instructions

2.1 Condensing Unit Installation Instructions ........5

2.2 Controller Display ............................................5

2.3 Button Descriptions and Key Combinations ....6

2.4 Viewing the Set Points ....................................7

2.5 Changing a Parameter Value ..........................7

2.6 Entering the Advanced Options Menu .............7

2.6.1 Moving Parameters Between the
Programming Menu and the Advanced

Options Menu .............................................. 7

2.7 Locking the Keypad ....................................... 7

2.8 Unlocking the Keypad ................................... 7

2.9 Resetting the Alarm and Runtime Counters .. 8

3. Alarm Menu ............................................................8

4. Service Menu .........................................................8

5. Parameter List........................................................9

6. Controller Wiring ..................................................10

6.1 Additional Controller Inputs ...........................10

7. Alarms/Notifi cations .............................................11

7.1 Discharge Line Temperature Protection ........12

7.2 UL High Pressure Safety Control ..................12

8. Thermister Temperature Resistance Values ... 13-14

9. Troubleshooting Guide .....................................15-16

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

1

AE8-1376 R2

Application Engineering

BULLETIN

Safety Instructions
Copeland

Safety Standards. Particular emphasis has been placed on the user's safety. Safey icons are explained below
and safety instructions applicable to the products in this bulletin are grouped on Page 3. These instructions
should be retained throughout the lifetime of the compessor. You are strongly advised to follow these
safety instructions.

™

brand products are manufactured according to the latest U.S. and European

Safety Icon Explanation

DANGER

WARNING

CAUTION

DANGER indicates a hazardous situation which, if not avoided, will result
in death or serious injury.

WARNING indicates a hazardous situation which, if not avoided, could
result in death or serious injury.

CAUTION, used with the safety alert symbol, indicates a hazardous
situation which, if not avoided, could result in minor or moderate injury.

NOTICE

CAUTION

NOTICE is used to address practices not related to personal injury.
CAUTION, without the safety alert symbol, is used to address practices

not related to personal injury.

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

2

Application Engineering

BULLETIN

Instructions Pertaining to Risk of Electrical Shock, Fire, or Injury to Persons

AE8-1376 R2

WARNING

WARNING

WARNING

CAUTION

ELECTRICAL SHOCK HAZARD

• Disconnect and lock out power before servicing.

• Allow drive components to electrically discharge for a minimum
of two minutes before servicing.

• Use compressor with grounded system only.

• Molded electrical plug must be used in all applications.

• Refer to original equipment wiring diagrams.

•

• Failure to follow these warnings could result in serious personal injury.

PRESSURIZED SYSTEM HAZARD

• System contains refrigerant and oil under pressure.

• Remove refrigerant from both the high and low compressor side before
removing compressor.

•

• Never install a system and leave it unattended when it has no charge,
a holding charge, or with the service valves closed without electrically
locking out the system.

• Use only approved refrigerants and refrigeration oils.

• Personal safety equipment must be used.

• Failure to follow these warnings could result in serious personal injury.

BURN HAZARD

• Do not touch the compressor until it has cooled down.

• Ensure that materials and wiring do not touch high temperature areas of
the compressor.

• Use caution when brazing system components.

• Personal safety equipment must be used.

• Failure to follow these warnings could result in serious personal injury or
property damage.

COMPRESSOR HANDLING

• Use the appropriate lifting devices to move compressors.

• Personal safety equipment must be used.

• Failure to follow these warnings could result in personal injury or
property damage.

Safety Statements

• Refrigerant compressors must be employed only for their intended use.

•
install, commission and maintain this equipment.

•

• All valid standards and codes for installing, servicing, and maintaining electrical and
refrigeration equipment must be observed.

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

3

Application Engineering

BULLETIN

1. Introduction and Features

The introduction of the Electronic Unit Controller to
Copeland

™

brand condensing units will provide many

benefi ts to the contractor and end-user. It has been
designed specifi cally for demanding refrigeration
applications to ensure precision in installation and
operation. While the Electronic Unit Controller will
replace existing adjustable low pressure controls, fan
cycle switches and other relays, it also has additional
features. These features include bump start (where
applicable), data storage and short cycling protection
(See Figure 3). This controller does NOT replace the
fi xed high pressure control required by UL.

The Electronic Unit Controller can be used on any
condensing unit application with the appropriate
sensors and relays that will be factory installed on
the condensing unit. This document will explain how
Electronic Unit Controllers affects your installation
process and how it can also assist in troubleshooting if
the need arises.

Controllers will be preprogrammed with the proper
settings, resulting in little to no setup time. The unit will
come with an attached label showing how to adjust the
low pressure cut-in and cut out (See Figure 1). There
will also be an additional label on the inside of the
enclosure which will also list all of the factory default
settings for the controller, including those that are not
adjustable (See Figure 2). The inside label will also
include a basic wiring diagram for the controller, basic

Hold 3 Seconds to Enter Menu

(PSI Light Will Flash)

Cycle Through Menu Options

Select Function

Adjust Value

Store Function

Exit Menu

Alarm Description

PoF Key pad locked
Pon Keypad unlocked

P1 Suction probe failure
P2 Condenser probe failure

P3 DLT probe failure
dLt DLT temperature alarm
dLL DLT lock al arm

EE Module Failure

Note: After 15 seconds of inactivity the
controller will revert to the default display

08/12

Figure 1

Figure 2

+

+

Alarm Description

HP High pressure trip alarm

High condenser

HA

temperature alarm
High pressure trip

HPL

lock-out alarm

Functions

Low Pressure

Cut-In

Low Pressure

Cut-Out

More infor mation

inside panel

Scan for Electronic Unit
Controller Alarm Code
and Service Information

052-7269-01

AE8-1376 R2

Features Today Dixell

Low Pressure

Control

High Pressure UL

Safety Control

Adjustable Mechanical Switch Suction Pressure Transducer

Adjustable or Fixed

Mechanical Switch

Fixed Mechanical Switch

Fan Cycling 2 Mechanical Switches Mid Coil Temperature Sensor

Time Delay Timing module Built In

Discharge Line

Protection

Mechanical Thermostat T emperature Sensor

Bump Start Timing Module Built In

Multi-Refrigerant

Approval

2 Adjustable Mechanical

Pressure Switches

Utilize Mid Coil

T emperatur e Sensors

Data Storage Performance Alert* Built In

Short Cycle

Protection

Performance Alert* Built In

Figure 3

*Copeland PerformanceAlert is not replaced by the Electronic Pressure Control. The PerformanceAlert module includes

many features not included in the Electronic Pressure Control, such as locked rotor protection, loss of phase, etc. The
Electronic Pressure Control is able to interface with PerformanceAlert to display error codes in an easy-to-read format.

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

4

AE8-1376 R2

Application Engineering

BULLETIN

descriptions of what the buttons on the controller does,
the controller part number and the part number for the
pre-loaded program. A phone number to contact and
a website for more information will be available on the
inside label as well.

1.1 Technical Specifi cations

Mounting: Panel mounting in a 71x29mm panel cut-out
Controller IP Rating: IP20
Front Panel IP rating: IP65
Power supply: 208/230Vac ±10%, 50/60Hz
110Vac ±10%, 50/60Hz
Power absorption: 3VA max
Relay outputs:
Compressor Relay: 250VAC, 16A FLA, 96A LRA
Fan Relay 1: 250VAC, 4.9 FLA, 29.4 LRA
Fan Relay 2: 250VAC, 1.9 FLA. 11.4 LRA

Special Note: EUC fan cycling relays are not
approved for use with ECM motors

Data storage: Non-volatile memory (EEPROM).
Rated impulsive voltage: 2500V; Overvoltage Category: II
Factory Installed Operating Range: -40 – 120°F Ambient
Non-Factory Installed Operating Range: -4 to 120°F Ambient

1.2 Pressure Probe Error Bypass

The pressure probe bypass is in place to allow the
controller to run proper during pull down if a system has
been off for a period of time and the suction pressure is
greater than the maximum value the suction transducer
can read (In most cases, 135 PSIG). If this occurs,
the controller will fl ash the maximum value of the
transducer for 15 minutes or until the suction pressure
is pulled down below the maximum transducer value.
The compressor will run continuously during this time
unless the thermostat input or high pressure input are
opened, or if there is a discharge line temperature trip.
If the 15 minutes expires the pressure probe error P1

is signaled and the compressor is switched on and off
cyclically with  (default 5 minutes) and  (default
5 minutes) period.

1.3 Bump Start

Bump start is an optional feature which can provide
additional fl ooded start protection. The compressor is
turned on for 2 seconds, then turned off for 5 seconds
3 times before the compressor runs normally. This
allows for refrigerant to exit the compressor without the
oil being removed as well.

Bump start is enabled on all transport units, without
the ability to be turned off. On most stationary units,
it is turned off by default, but can be turned on in the
Advanced Options Menu as by changing to Yes.
(See section 2.6).

2. Installation and Controller Operation Instructions

2.1 Condensing Unit Installation Instructions

A condensing unit with an Electronic Unit Controller
will be installed exactly the same as a condensing unit
with mechanical controls. Customer connections will
not change, and in a vast majority of cases, wiring to
the unit will not change as well. See section 6 for more
information. The key difference with an Electronic Unit
Controller is that setpoints are set electronically rather
than mechanically. See section 2.5 for further details.

If the unit keeps shutting down during charging, the low
pressure cut out can be lowered to allow it to run. Be
sure to adjust it back to the proper setting after charging.

2.2 Controller Display

The controller display is shown in Figure 4 below.
Table 1 provides a description of each of the labeled
lights. The controller is defaulted to display the current
suction pressure to three signifi cant digits in pounds
per square inch gage (psig).

Compressor

Alarm
History

Module Restart,
push to reset the
HPL, DLL lock out faults
(cycle power)

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

Fan Motor 1

ServiceActive Alarm

Fan Motor 2

Figure 4

5

Units

Application Engineering

BULLETIN

Table 1 – LED Descriptions

LED MODE FUNCTION

ON Compressor On

Flashing Anti-short cycle delay enabled
1
2

PSI
PSI

2.3 Button Descriptions and Key Combinations
Table 2 lists the different buttons on the controller (as shown in Figure 4) as well as their

functions. Table 3 lists the different key combinations that are available and their functions.

ON Fan1 On
ON Fan 2 On

ON Pressures displayed in PSIG

Flashing Programming mode

ON Browsing the service menu

Flashing New alarm indication

ON You’re browsing the alarm menu
ON An alarm is occurring

AE8-1376 R2

Table 2 – Button Descriptions

BUTTON DESCRIPTION

Displays set point
In programming mode it confirms an operation.

1) To override the cut-in value push the start function button
(see Figure 4) for 3 seconds. Compressor will then start.

START

(UP)

(DOWN)

SERVICE

Alarm menu

2) If a DLL or HPL lock out condition occurs, to reset depress
the start button (see Figure 4) for 3 seconds two consecutive
times to reset the lock out condition. (If the temperatures or
pressures are exceeding the cut out trip point values, pushing
the start button will not clear the fault)

In programming mode it browses the parameter codes
or increases the displayed value.
In programming mode it browses the parameter codes
or decreases the displayed value.

To enter the service menu. (See Section 4)
To enter the Alarm menu. (See Section 3)

Table 3 – Key Combinations

KEY COMBINATIONS:

To lock & unlock the keyboard interface

+
+

To enter into programming mode.
To return to the suction pressure display.

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

6

AE8-1376 R2

Application Engineering

BULLETIN

2.4 Viewing the Set Points:

1. Push and immediately release the key: the display will show the “Cin ”
message.

2. Press to see the value;

3. Push and immediately rele ase the key: the displa y will show the “
message.

4. Press to see the value.

2.5 Changing a parameter value:

To change the parameter’s value, operate as follows:

1. Hold do wn the + keys for 3 seconds or until the “PSI” LED starts blink ing to
enter the module’s programming menu.

2. Use or to select the required parameter. Press the key to display its value.

3. Use or to change its value.

4. Press to store the new value.

TO EXIT: Press + or wait 15 seconds without pressing a key.
NOTE: the set value is stored even when the procedure is exited by waiting for the time-out to expire.

2.6 Entering the Advanced Options Menu:

The advanced options m enu will be locked 5 m inutes af ter the controller is po wered. If you need
to access this menu after this time, cycle power to the controller.

1. Enter th e Programming mode by pressing the + keys for 3 seconds (the PSI
LED starts blinking).

2. Release the k eys, then push again the + keys for at least 7 sec onds. The Pr2
label will be displayed immediately followed from the

NOW YOU ARE IN THE ADVANCE OPTIONS MENU.

3. Use or to select the required parameter.

4. Press the key to display its value.

5. Use or to change its value.

6. Press to store the new value.

TO EXIT: Press + or wa it 15 seconds without pressing a key.
NOTE1: if no parameter is present in Pr1, after 3 seconds the “noP” message is displayed.

Keep the keys pushed until the Pr2 message is displayed.
NOTE2: the set value is stored even when the procedure is exited by waiting for the time-out to expire.

Ci.n parameter.

Cou ”

2.6.1 Moving Parameters between the Programming Menu and the Advanced Options Menu
While in the advanced options menu, certain parameters will have a (. period) in between the 2

rd

and 3

character, for example

the Advanced Options Menu.
To add or remove a parameter from the programming menu, press the SET + keys

together while the parameter name is on the display in the advanced options menu. The
(.

period) between the 2

To Exit: Press SET + or wait 15 seconds without pressing the keys.

2.7 Locking the Keypad

1. Keep pressed for more than 3 seconds the + keys.

2. The “PO F” message will be dis played and the keyboard will be lock ed. At this point it will be

possible only to see the set points.

3. If a key is pressed more than 3 seconds the “POF” message will be displayed.

2.8 Unlocking the Keypad

Keep pressed together for more than 3 seconds the + keys, until the “Pon” message
is displayed.

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

nd

and 3rd parameter will either be added or removed.

Ci.n

. These parameters are in the Programming Menu as well as

7

nd

AE8-1376 R2

Application Engineering

BULLETIN

rSA

DLT

Loc
rCA
rCH
rFH

n

HP

dLt

LOC

HP

dLt

Loc

StH

StL

StH

StL

CHH

CHL

CHH

CHL

F1H

F1L

F2H

F2L

2.9 Resetting the Alarm and Runtime Counters

See sections 3 and 4 for more information on the Alarm and Service Menus.
The advanced options m enu will be lock ed 5 minutes af ter the controller is power ed. If you need
to reset counters after this time, cycle power to the controller.

1. Enter the Programm ing mode by pressing the + keys for 3 seconds (the PSI
LED starts blinking).

2. Release the k eys, then push again the + keys for more than 7 seconds. T he Pr2
label will be displayed immediately followed from the “

NOW YOU ARE IN THE ADVANCE OPTIONS MENU.

3. Use or to select the required parameter listed below.

r

4. Press the key to display its value.

5. Use Change the

6. Press to store the new value and reset the counter

7. Repeat steps 3 to 6 to reset any additional counters

3. Alarm Menu

The controller records in the Alarm menu the total number of activations of the following alarms.

- High Pressure Trips ( up to 999) -

- High DLT temperature alarm ( up to 999) -

- Total number of manual restarts (HPL and dLL) up to 255 -

To see the alarm counters:

– Reset Alarm Counters (HP,
– Reset Compressor Starts Counters
– Reset Compressor Run Hours Counters
– Reset Fan Run Hours Counters

to y.

1. Push and release the

2. The controller shows the

3. Push the key to see the number of high pressure trips.

4. The controller shows the

5. Push the key to see the number of DLT Trips.

6. The controller shows the

7. Push the key to see the number of manual resets.

key.

.

label.

label.

label.

, and

.

)

Cin

”

parameter.

.

4. Service Menu
In the SERVICE menu the following values are stored:

• Number of compressor starts:

Example: If

• Compressor Run Hours:

Example: If

• Fan Motor 1 Run Hours:

• Fan Motor 2 Run Hours:

To see the Service Counters:

1. Push and hold the

2. See the above list for the counter names and meanings.

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

=12

= 8 and

= 500: the total number of compressor starts = 12,500

= 500, the total number of compressor run hours is 8,500

key for 3 seconds

(0-999 resolution 1000);

( 0-65; res. 1000)

(0-65; res. 1000)
(0-65; res. 1000)

8

( 0- 999; res. 1);

(0-999; res. 1)
(0-999; res. 1);

(0-999 resolution 1)

AE8-1376 R2

Application Engineering

BULLETIN

5. Parameter List

All of the parameters are listed below, along with their descriptions and default values. Depending on the condensing
unit model, some of these values may be different or not applicable.

Table 4 – Parameters

Label Description Default Range

Default Display Value

Current Suction Pressure (PSIG)

Adjustable In Programming Menu

Compressor cut in (PSIG)

Cin

Compressor cut out (PSIG)

CoU

Adjustable From Advanced Options Menu

Outputs delay at start up (seconds) (Only adjustable on single phase scroll units)

odS

Anti-short cycle delay (Minimum time between compressor off then on) (seconds)

AC

Compressor ON time with faulty probe (minutes)

Con

Compressor OFF time with faulty probe (minutes)

CoF

Suction Pressure Transducer Offset (PSI)

P1F

Bump start enabled

b P

Number of activation of DLT alarm in a hour to lock compressor (Units with discharge

nPS

line temperature protection only)
UL safety digital input activation before compressor lock (Units with fixed high

HPn

pressure controls only)
Fan 1 Cut Out (°F) (Fan Cycling Units Only)

SF1

Fan 1 differential (°F) (Fan Cycling Units Only)

HF1

Fan 2 Cut Out (°F) (Fan Cycling Units Only)

SF2

Fan 2 differential (°F) (Fan Cycling Units Only)

HF2

Reset Alarm Counters (HP, DLT, and Loc)

rSA

Reset Compressor Starts Counters

rCA

Reset Compressor Run Hours Counters

rCH

Reset Fan Run Hours Counters (Fan Cycling Units Only)

rFH

Factory Set Definitions

Minimum set point (PSIG)

LS

Maximum set point (PSIG)

US

Minimum time between two compressor starts (minutes)

ono

Number of fans on during probe fault

nFA

Measurement unit for pressure: PSIG, bar, kPA

Unt

Measurement unit for temperature

CF

Bump Start Compressor on time (seconds)

on

Bump Start Compressor off time (seconds)

oFF

Number of cycle during bump start

nub

Compressor stop time for next bump start (hours)

bEn

DLT alarm temperature to stop compressor (°F)

doF

DLT temperature for compressor restart (°F)

don

DLT Stop compressor delay (seconds)

ALd

Minimum time of compressor off with dLL alarm (minutes)

dLF

Cut In for Condenser Temperature/Pressure alarm (°F)

AU2

Cut Out for high Condenser Temperature/Pressure alarm (°F)

AH2

High condenser temperature alarm delay (minutes)

Ad2

Minimum off time after a High Pressure Trip (minutes)

HPF

oU – US

25
15

C

S - Cin

L

2 or 4 2 - 255

6 6 - 900
5 0-255
5 0-255
0 -120 -120

No no - YES

0

4

5

-15; 0 = always

automatic restart

0

-15; 0 = always

automatic restart

70 -40 -ÒSF2
10 1 -100
85 SF1 - 230
15 1 - 100

-7 or 5 -7 - US
135 LS -135

0 0 -15
2 0 - 2

PSI PSI, bar, kPA

F ∞C or∞F
2 1 - 15
5 1 - 15
3 1 - 15

4.0 1.0 - 23.5
220 don - 302
170 -58 - doF

0 0 - 255

0 0 - 15
150 AH2 - 230
140 -40 - AU2

0 0 - 255

0 - 15

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Printed in the U.S.A.

9

Application Engineering

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6. Controller Wiring

WARNING

Always disconnect and lockout the power supply before
beginning electrical installations or troubleshooting.

Copeland PerformanceAlert (CPA)

High Voltage

DLT Sensor

Line

Comm. Port

AE8-1376 R2

Electronic Unit Controller

Figure 5 – Wiring Schematic Example for the Electronic Unit Controller with Copeland PerformanceAlert

Suction Pressure Transducer: Use terminal 9 (+5V) for supply, terminal 1 1 for ground and terminal 12 for signal
Condenser Temperature Sensor: Connect the probe to terminal 11 (ground) and 10
Thermostat input: use terminals 14-17
UL HP input: use terminals 15-17
DLT Sensor: Connect the probe to terminals 16-17
Copeland Performance Alert (CPA) connection: Connect the CPA as shown in the wiring diagram.
For more information on PerformanceAlert, see Application Engineering Bulletin AE8-1347.
Power supply: use terminals 4-5
Compressor: use terminals 1-3
FAN 1: use terminals 6-7
FAN 2: use terminals 1-2

6.1 Additional Controller Inputs

If any other devices are used to control the condensing unit, such as a thermostat or other type device, it will need
to be a dry contact (no voltage) and will need to be connected to terminals 14 and 17. These terminals are located
on the hotkey cable. These two terminals will be connected together by push-on type connectors allowing for ease
of performing the fi nal connection. See Figure 5 for wiring details.

NOTE: If using a controller such as a thermostat with another device such as a pump down solenoid, no
connections to the controller are required.

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

10

Application Engineering

BULLETIN

PoF

Pon

dLt

dLL

HPL

CPA

C01

C02

C03

C04

C05

C06

C07

C08

C09

C10

C11

7. Alarms/Notifi cations

In the event of an issue, the below codes will fl ash to indicate the alarm condition.
See Section 9, Troubleshooting Guide, for further instruction.

Table 5 – Alarms And Notifications

Code Description

AE8-1376 R2

P
P

PP1
PP2
PP3

HHA
d
d

HHP
H
C

EEE

If a Copeland PerformanceAlert is installed in the unit, any error codes from the PerformanceAlert
will be displayed on the screen of the Dixell controller. This eliminates the need to count light
flashed on the PerformanceAlert itself. For more information on PerformanceAlert, see AE8-

1347.

Code Three Phase Recip Three Phase Scroll Single Phase

C
C
C
C
C
C

Discharge Temperature Trip Discharge Temperature Trip Discharge Temperature Trip

System Trip System Trip System Trip
Short Cycling Short Cycling Short C yclin g
Locked Rotor Locked Rotor Locked Rotor

Open Circuit Open Circuit Open Circuit

Missing Phase Missing Phase Open Run

C
C
C
C
C

Welded Contactor Welded Contactor Welded Contactor

Low Voltage Low Voltage Lo w Voltag e

Lost communications Lost communications Lost communications

DLT Sensor Failure DLT Sensor Failure DLT Sensor Failure

Keypad locked
Keypad unlocked
Suction probe failure
Condenser probe failure
DLT probe failure
High condenser temperature alarm
DLT temperature alarm
DLT lock alarm
High pressure trip alarm
High pressure trip lock-out alarm
Copeland PerformanceAlert not connected properly
Module Failure

Table 6 – Copeland PerformanceAlert Error Codes

NA Reverse Phase Open Start

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

11

AE8-1376 R2

Application Engineering

BULLETIN

7.1 Discharge Line Temperature Protection

Discharge line temperature protection has traditionally
been handled by a mechanical thermostat, which was
always an automatic reset, and other than the system
not running, gave no indication that a trip had occurred
or is occurring. The Electronic Unit Controller uses a
temperature sensor, which allows for more fl exibility in
what the controller can do. If the unit trips, the unit will
display an error code and log that an error has occurred.
In addition, the controller will allow an automatic reset
up to 4 times per hour. On the fourth trip, the controller
will require a manual reset. The parameter  can be
changed in the Advanced Options Menu (see section

2.6) to adjust the total number of trips allowed in an
hour before a lockout. If an always automatic reset is
needed, then  can be set to 0. The default value
for the discharge line cut-out is 220°F and the cut-in
is 170°F.

7.2 UL High Pressure Safety Control

High pressure control is a UL safety device. As such,
Emerson Climate Technologies condensing units
equipped with the Electronic Unit Controller still come
with the high pressure mechanical control installed on
the unit. The high pressure controls will all be fi xed to
work with the control, and the value of the cut-out will
be determined by the working pressure of the high side
of the condensing unit. This should have no affect on a
customer’s UL requirements.

The high pressure control will break power to the
compressor output relay, which will shut down the
compressor regardless of the program state. This
change will also allow the controller to read the high
pressure control state, and display the appropriate
error codes as needed. In addition, the controller will
allow an automatic reset up to 4 times per hour. On
the fi fth trip, the controller will require a manual reset.
The parameter
Options Menu (See section 2.6) to adjust the total
number of trips allowed in an hour before a lockout. If
an always automatic reset is needed, then  should
be set to 0.

 can be changed in the Advanced

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

12

Application Engineering

BULLETIN

8. Thermister Temperature/Resistance Values for Condenser Temperature Sensor

AE8-1376 R2

Deg C Deg F

-50 -58 329.5

-49 -56 310.9

-48 -54 293.5

-47 -53 277.2

-46 -51 262

-45 -49 247.7

-44 -47 234.3

-43 -45 221.7

-42 -44 209.9

-41 -42 198.9

-40 -40 188.5

-39 -38 178.5

-38 -36 169

-37 -35 160.2

-36 -33 151.9

-35 -31 144.1

-34 -29 136.7

-33 -27 129.8

-32 -26 123.3

-31 -24 117.1

-30 -22 111.3

-29 -20 105.7

-28 -18 100.5

-27 -17 95.52

-26 -15 90.84

-25 -13 86.43

-24 -11 82.26

-23 -9 78.33

-22 -8 74.61

-21 -6 71.1

-20 -4 67.77

-19 -2 64.57

-18 0 61.54

-17 1 58.68

-16 3 55.97

-15 5 53.41

-14 7 50.98

-13 9 48.68

-12 10 46.5

-11 12 44.43

-10 14 42.47

-9 16 40.57

Resistance
(kOhms)

Deg C Deg F

-8 18 38.77

-7 19 37.06

-6 21 35.44

-5 23 33.9

-4 25 32.44

-3 27 31.05

-2 28 29.73

-1 30 28.48
0 32 27.28
1 34 26.13
2 36 25.03
3 37 23.99
43923
5 41 22.05
6 43 21.15
7 45 20.3
8 46 19.48
9 48 18.7
10 50 17.96
11 52 17.24
12 54 16.56
13 55 15.9
14 57 15.28
15 59 14.69
16 61 14.12
17 63 13.58
18 64 13.06
19 66 12.56
20 68 12.09
21 70 11.63
22 72 11.2
23 73 10.78
24 75 10.38
25 77 10
26 79 9.632
27 81 9.281
28 82 8.944
29 84 8.622
30 86 8.313
31 88 8.014
32 90 7.728
33 91 7.454

Resistance
(kOhms)

Deg C Deg F

34 93 7.192
35 95 6.94
36 97 6.699
37 99 6.467
38 100 6.245
39 102 6.032
40 104 5.827
41 106 5.629
42 108 5.438
43 109 5.255
44 111 5.08
45 113 4.911
46 115 4.749
47 117 4.593
48 118 4.443
49 120 4.299
50 122 4.16
51 124 4.026
52 126 3.896
53 127 3.771
54 129 3.651
55 131 3.536
56 133 3.425
57 135 3.318
58 136 3.215
59 138 3.116
60 140 3.02
61 142 2.927
62 144 2.838
63 145 2.751
64 147 2.668
65 149 2.588
66 151 2.511
67 153 2.436
68 154 2.364
69 156 2.295
70 158 2.228
71 160 2.163
72 162 2.1
73 163 2.039
74 165 1.98
75 167 1.924

Resistance
(kOhms)

Deg C Deg F

76 169 1.869
77 171 1.816
78 172 1.765
79 174 1.716
80 176 1.668
81 178 1.621
82 180 1.577
83 181 1.533
84 183 1.491
85 185 1.451
86 187 1.411
87 189 1.373
88 190 1.336
89 192 1.3
90 194 1.266
91 196 1.232
92 198 1.2
93 199 1.168
94 201 1.137
95 203 1.108
96 205 1.079
97 207 1.051
98 208 1.024
99 210 0.9984
100 212 0.9731
101 214 0.9489
102 216 0.9246
103 217 0.9014
104 219 0.8789
105 221 0.8572
106 223 0.836
107 225 0.8155
108 226 0.7956
109 228 0.7763
110 230 0.7576

Resistance
(kOhms)

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

13

Application Engineering

BULLETIN

8.1 Thermister Temperature/Resistance Values for Discharge Temperature Sensor

AE8-1376 R2

Deg C Deg F

-40 -40 2889.60

-35 -31 2087.22

-30 -22 1522.20

-25 -13 1121.44

-20 -4 834.72

-15 5 627.28

-10 14 475.74

-5 23 363.99
0 32 280.82
5 41 218.41
10 50 171.17
15 59 135.14
20 68 107.44
25 77 86.00
30 86 69.28
35 95 56.16
40 104 45.81
45 113 37.58
50 122 30.99
55 131 25.68
60 140 21.40
65 149 17.91

Resistance
(kOhms)

Deg C Deg F

70 158 15.07
75 167 12.73
80 176 10.79
85 185 9.20
90 194 7.87
95 203 6.77
100 212 5.85
105 221 5.09
110 230 4.45
115 239 3.87
120 248 3.35
125 257 2.92
130 266 2.58
135 275 2.28
140 284 2.02
145 293 1.80
150 302 1.59
155 311 1.39
160 320 1.25
165 329 1.12
170 338 1.01
175 347 0.92
180 356 0.83

Resistance
(kOhms)

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

14

AE8-1376 R2

Application Engineering

BULLETIN

9. Troubleshooting Guide

Display Likely Causes Other Possible Causes

Controller display remains
blank after applying power

Controller displays correctly,
but the green compressor
light is off and the
compressor is not running

Controller displays correctly
and the green compressor
light is on and the
compressor is not running

Controller fl ashes “135” or
“P1”

• Unit power not properly applied - check
for proper applied voltage

• Power cable harness not plugged in
properly or securely into the back of the
controller – check connections

• Jumper cable not plugged in properly or
securely into the back of the controller –
check connections

• Controller is currently above the cut-in
setting – check cut-in and cut-out settings

• Power cable harness not plugged in
properly or securely into the back of the
controller – check connections

• Current system pressure is above 135
PSIG – wait for system to pull down

• Green harness not plugged in properly or
securely into the back of the controller –
check connections

• Cable not connected properly with the
pressure transducer – check connections

• Power cable miswired – inspect
cable, replace if needed

• Electrical assembly miswired –
trace wiring diagrams

• Jumper cable miswired – inspect
cable, replace if needed

• Power cable not wired to
the contactor or compressor
correctly, check wiring

• Power cable miswired – inspect
cable, replace if needed

• Transducer cable miswired –
inspect cable, replace if needed

• Damaged transducer – inspect
transducer, replace if needed

Controller fl ashes “P2” on a
unit with fan cycling

Controller fl ashes “P2” on a
unit without fan cycling after
replacing a controller

Controller fl ashes “P3” on a
unit with DLT

Controller fl ashes “P3” on
a unit without DLT after
replacing a controller

• Green harness not plugged in properly or
securely into the back of the controller –
check connections

• Controller not programmed properly –
check parameters in the advanced menu

• Jumper cable not plugged in properly or
securely into the back of the controller –
check connections

• Controller not programmed properly –
check parameters in the advanced menu

• Transducer cable miswired –
inspect cable, replace if needed

• Check condenser temperature
sensor resistance values against
table in Section 8.

• Jumper cable miswired – inspect
cable, replace if needed

• Faulty DLT temperature sensor
– check the discharge line
temperature sensor resistance
values against table in Section 8.

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

15

AE8-1376 R2

Application Engineering

BULLETIN

Troubleshooting Guide (continued)

Display Likely Causes Other Possible Causes

Fans not running on a fan
cycling unit and the fan lights
are not on

Fans not running on a fan
cycling unit and the fan lights
are on

Controller fl ashes “HP” at
power-up

Controller fl ashes “HP” or
“HPL”

• Condensing temperature is currently
below the fan cut-in

• Condensing temperature sensor not
properly installed – check installation

• Power cable harness not plugged in
properly or securely into the back of the
controller – check connections

• Jumper cable not plugged in properly or
securely into the back of the controller –
check connections

• High pressure switch is seeing above the
cut-out pressure

• For a replacing an -00 controller, ensure
that the jumper cable is the latest
revision. It should have a blue wire in the
harness. See replacement instructions
for more details.

• System operation causing high discharge
pressures, check system operations

• Transducer cable miswired –
inspect cable, replace if needed

• Faulty temperature sensor ­check condenser temperature
sensor resistance values against
table in Section 8.

• Power cable miswired – inspect
cable, replace if needed

• Electrical assembly miswired –
trace wiring diagrams

• Jumper cable miswired – inspect
cable, replace if needed

• Faulty fi xed Hp switch – inspect
switch, replace if needed

• Bad high pressure switch, verify
system pressure when the
pressure switch trips.

• See Section 7.2 for more details.

Controller fl ashes “DLT” or
“DLL”

• System operation causing high discharge
line temperatures, check system
operations

• Faulty temperature sensor ­check DLT sensor values against
table in section 8.

• See Section 7.1 for more details

Controller fl ashing “HPL” or
“DLL”

• System operation causing high discharge
pressures (HPL) or high discharge line
temperatures (DLL) repeatedly, check
system operations

• To clear an “HPL” or “DLL” lockout, you
can hold the Restart button for 3 seconds
twice, or cycle power to the unit. If using
the reset button, the alarm condition will
have to clear (DLT temperature drops or
Hp switch resets), and any minimum off
time will need to complete (5 minutes for
the fi xed Hp switch)

The contents of this publication are presented for informational purposes only and are not to be construed as warranties or guarantees, express or implied, regarding
the products or services described herein or their use or applicability. Emerson Climate Technologies, Inc. and/or its affi liates (collectively "Emerson"), as applicable,
reserve the right to modify the design or specifi cations of such products at any time without notice. Emerson does not assume responsibility for the selection, use or
maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson product remains solely with the purchaser or end user.

© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.

16