Hussmann RFLNS Installation Manual

Download

RFLNS & RFMNS

Freedom Line

Low or Medium Temperature

Compressor Ready

Narrow Footprint

Reach-in

Merchandisers

IMPORTANT

Keep in store for future reference!

MANUAL - I/O FREEDOM RFLNS & RFMNS

Installation &

Operation Manual

Shipped With Case Data Sheets

P/N 0539221_H

July 2015

Spanish P/N 0541249

French P/N 0541252

P/N 0539221_H iii

TABLE OF CONTENTS

INSTALLATION

NSF Certication ..................... 1-1

Freedom Line Description Location

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

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

Shipping Damage ...................... 1-2

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

Moving Merchandisers (Narrow Entrance) . 1-2 Merchandisers Shipped with End Installed .. 1-2

Optional Forklift Pockets ............... 1-3

Shipping Braces ....................... 1-3

Leveling ............................. 1-4

Door Adjustment . . . . . . . . . . . . . . . . . . . . . . 1-6

Joining .............................. 1-6

REFRIGERATION / ELECTRICAL / SAFE-NET III

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

Field Installation of Condensing Unit ..... 2-2

About Quick Connect Couplings .......... 2-5

Connect Lines ........................ 2-5

Insulate Refrigerant Lines ............... 2-5

Field Wiring .......................... 2-5

Safe-NET III User Instructions ........... 2-8

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

Start-Up .............................2-9

Safe-NET location .................... 2-10

Sequence of Operation ................2-11

Temperature Adjustment .............. 2-12

Alarms and Codes .................... 2-12

Manual Defrost ...................... 2-12

Merchandiser Electrical Data ........... 2-13

Electrical Connections ................. 2-13

Identication of Wiring ................ 2-13

Controls and Adjustments ............. 2-14

FACADE AND SPLASHGUARDS

Install Facade Air Flow Bafe

........................3-1

....................... 3-3

Installing Splashguards and Brackets ...... 3-4

Sealing Splashguard to Floor ............ 3-5

Installing Bumpers ..................... 3-6

START UP / OPERATION

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

Prior to Start Up Checklist .............. 4-2

Start Up Checklist ..................... 4-2

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

Safe-NET III Control Settings

and Operation ........................ 4-3

Checklist After 12 Hour Run Time ........ 4-3

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

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

Installing FDA/NSF

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

MAINTENANCE

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

Cleaning Condensate Float Switch ........ 5-2

Cleaning Condensate Pump & Pan ........ 5-3

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

Cleaning Stainless Steel Surfaces .......... 5-4

Cleaning Coils ........................ 5-4

Cleaning Under Merchandisers .......... 5-4

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

Top Mount Cleaning & Maintenance ...... 5-5

SERVICE

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

Replacing Electric Defrost Heaters ........ 6-2

Replacing Drain Pan Heater Elec & Gas .... 6-3

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

Repairing Aluminum Coil ............... 6-4

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!

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iv Contents

REVISION HISTORY

REVISION H - JULY 2015

Revised checklist GFCI, Page 4-3 Revised Connect lines and Refrigerant Lines, Page 2-5

REVISION G – March 2015 Removed references on page 3-3 and 5-3

REVISION F – February 2015 Clearance, Page 1-1

REVISION E – October 2014 Added California Warning Page 1-2; Installing Air Flow Bafe Page 3-3. Revised fork life pockets, Page 1-3 End photos and text, Page 1-6 Rear Bracket, Page 2-2 Detail A text, Page 2-4 text, Page 2-7 Photo removed Page 3-1, 3-2, changed page 3-4, New Optional Drip Pipe Section 7

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

ANSI Z535.5 DEFINITIONS

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

• 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 D – July 2014 Updated Cover Photo

REVISION C – July 2014 Original Issue

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P/N 0539221_H 1-1

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 RFLNS and RFMNS cases are designed to be ready for remote installation of a top-mounted air-cooled condensing unit, such as Hussmann’s TCLSA through TCMSD 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 discharge air honeycomb. Another sensor, located on the bottom center evaporator coil return bends 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 top of the case.

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.

These partition may be acrylic or insulated, depending on case’s operating temperature.

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.

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

1-2 InstallatIon

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.

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 store items or ammable

materials atop the unit.

Do not walk on case.

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.

EXTERIOR LOADING

Do NOT walk on top of merchandisers or damage to

the merchandisers and serious personal injury could occur.

supporT excessive exTernal loading such as the

weight of a person. Do not store items or ammable materials atop the case.

MOVING MERCHANDISER THROUGH NARROW STORE ENTRANCES

Door handles may be disassembled for transit access through small doors or passage ways. The minimum door opening is 36 in. x 80 in.

The door handles can be removed for narrow store entrances.

They are noT sTrucTurally designed To

Remove Screws from Door Handle

MERCHANDISERS SHIPPED WITH END

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.

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.

be sur e To rep l ace Thes e bo l Ts w iTh The sh orTe r bo l Ts p rovi ded.

Th eref o re,

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

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.

forms.

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P/N 0539221_H 1-3

OPTIONAL FORKLIFT POCKETS

Underneath the case there are pockets where the forks of a forklift can be inserted to move the case into the store. Ensure forks are inserted through all four pockets prior to moving the merchandiser. These shipping pockets (if ordered with the case(s)) can be used to bring the

Ensure the forks are inserted all the way

through all four pockets before lifting the case. Case tipping could cause personal

injury and / or damage to the equipment.

merchandiser into the store and place it to its nal location.

Optional Fork

SHIPPING BRACES

Lift Pockets

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. Remove the bottom display pans and air return grilles from the case(s).

Shipping Block

Top View of Merchandiser

Heat Exchanger

Front Shipping Brace

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

1-4 InstallatIon

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:

hI g hest p oInt o f the stor e floo r .

Be g In lI n eup l evelI n g fro m the

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 illustrations 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.

Case Leveling

Shim Case

P/N 0539221_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

P/N 0539221_H 1-5

Approximately Centered

Rear of Reach-In

Base Component

If any of the Earthquake Shoes are not in contact with the ﬂoor, these Earthquake shoe locations must be shimmed, using provided shims

4-Door Merchandiser Shown

No Gap between earthquake

Skid External Base

shoe and the oor

Shim HereShim Here

Shim

Locations

Earthquake

Shoe

Correct Shim Location is Critical

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

1-6 InstallatIon

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.

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 merchandisers with independent ends, a joining kit is required.

The painted caps for the end assembly bolt holes may be kept with this manual. Insert two insulating plugs into each bolt hole of the ends to be joined. After leveling and aligning the top edge of the ends, install the two case-to-case brackets on to the top with sheet metal screws as shown below.

To join unlike xtures, or like xtures operating at different temperatures, a 2inch (51mm) partition kit is required. To join same temperature merchandisers on different defrost cycles, a plexiglass partition kit is required. Install ‘J’ trim between cases.

all joinTs musT be

air-TighT To prevenT

formaTion of ice

or condensaTion.

Use J-Bar to Align Cases for Joining

Remove Top Panel

Case End Cap Bolt Hole Locations

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P/N 0539221_H 2-1

REFRIGERATION / ELECTRICAL / SAFE-NET III

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

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.

Condensing Unit

The condensate pan, if selected by the end user, 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.

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

Insulation Sponge 5/8 inch x 3/4 inch wall

insulation to cover entire length from

Condenser Unit connection to end

of copper tubing, where it enters at

top of case, including quick connects

Facades

Right side of case

looking from the front

Orient the Condenser Unit as shown on top of the case. Line up mounting holes on base of condenser unit with holes on mounting plate and secure using (4) 12-14 x 2 1/4 inch screws and ﬂat washers

Apply Rubber Gasket along base edges that contact mounting plate (8) places (2 each side) as shown

Rear Bracket used on 4 & 5 Door Cases Only. Sound Panel Kits Use Similar Bracket For 3 Door Cases.

Connect quick connects on ﬂexible liquid & suction lines from condensing unit to quick connects on pipes exiting top right of case

5-Door Case & Condenser Unit Shown

P/N 0539221_H

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P/N 0539221_H 2-3

The wiring connection for the condensing unit is provided with 5-ft leads. The conduit must be connected 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.

To avoid serious injury or death from electrical

— LOCK OUT / TAG OUT —

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.

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

TO TOP OF CASE

CONDENSATE EVAP PAN

DETAIL A

Detail A

COPPER TUBE

Copper Tube Condensate Pan

CONDENSATE PAN

CLAMP 3/8" COPPER TUBE

Clamp 3/8 inch

TO TOP OF CASE

copper tube to top of case

ATTACH 3/8" TUBING TO

Attach 3/8 inch tubing to condensate

CONDENSATE PAN COPPER TUBE USE TIE-RAP TO SECURE

pan copper tube use tie-rap to secure

CLAMP 3/8" TUBING TO TOP OF CASE

Clamp 3/8 inch tubing to top of case

TUBING FROM CONDENSATE

Tubing from Condensate Pump is

PUMP MOUNTED TO BOTTOM OF CASE

mounted to bottom of Case

Condensate Evaporator Pan

to knockout

KNOCKOUT IN RACEWAY

Plug Condensate

PLUG CONDENSATE EVAP PAN

Evap Pan into GFCI

INTO GFCI OUTLET AS SHOWN

Outlet as Shown

Connector

in Wireway

CONNECTOR TO

Conduit PVC X-Flex from

Handy Box located at

CONDUIT PVC X-FLEX

FROM HANDY BOX LOCATED

bottom of Case

ON BOTTOM OF CASE

CLAMP CONDUIT PVC X-FLEX

Clamp Conduit PVC

X-Flex to top of Case

CLAMP CONDUIT PVC X-FLEX

Clamp Conduit PVC X-Flex

AND 3/8" TUBING TO REAR FOAM PANELS AS REQUIRED

and 3/8 Tubing to rear foam panels as required

Condensate Pan Installation and Location

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

2-4 RefRigeRation/electRical/Safe-net iii

Heated condensate pan

is to be plugged into GFCI

outlet, mounted on top,

EVAPORATOR TO BE

PLUGGED INTO GFCI OUTLET

MOUNTED ON TOP RIGHT SIDE

right side of wireway

OF RACEWAY

Position heated condensate pan to Dimensions shown and install (4)

POSITION EVAPORATOR TO DIMENSIONS SHOWN AND INSTALL (4) SM SELF-DRILL SCREWS INTO

SM Self-Drill Screws into Top Foam

TOP FOAM PANEL LINER

Panel Liner

View is looking at top of case, right side

Foam Seal must be in place, sealant must

be applied around the copper lines after

Condensate Pan Installation, Location and Electrical

VIEW LOOKING AT TOP OF CASE RH SIDE

connecting the condensing unit.

17 inches

17.00 APPROX.

(432 mm)

(approximate

APPROX.

Detail A

location)

9.00

(229 mm)

9 inches

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.

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

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P/N 0539221_H 2-5

Hex Wrench

Coupling Size

/8 in. Male

/8 in. Female

/8 in. Male 1 1/16 in.

/8 in. Female 1 5/16 in.

/4 in.

/16 in.

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.

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. A conduit whip is provided for the power input (eld connection) of the 120V single phase and 208/230V single phase power supply. The terminal blocks are located inside the wireway 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. The disconnect switch that turns off power to all case components and the condensing unit is on top of the case, on the rear of the wireway. When this switch is off, some electrical terminals in the case wireway may be energized.

Coupling Foot Pounds

Size (Ft. Lbs.)

/8 in. 10-12

/8 in. 35-45

Compressor

Insulation

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

2-6 RefRigeRation/electRical/Safe-net iii

.75

Bottom RH View of Case RFLNS/RFMNS 4 Door

Handy Box Bracket

(Factory Installed)

Factory Installed

Condensate Reservoir

51.83

Conduit and Tubing to top of Case

60.50

Dimensions In Inches

Pump Mounting Bracket

(Factory Installed)

Conduit PVC X-Flex and

3/8 Inch Tubing

(Factory Installed)

1.25

.62

P/N 0539221_H

7.75

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P/N 0539221_H 2-7

Condensate Reservoir

Bottom RH View of Case RFLNS/RFMNS 5 Door

All Dimensions in Inches

Pump Mounting Bracket

(Factory Installed)

at top of Case

Handy Box Bracket

(Factory Installed)

Conduit and Tubing

.62

1.25

Factory Installed

31.42

25.19

6.50

.75

8.32

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

2-8 RefRigeRation/electRical/Safe-net iii

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 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.

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

Adjustment

Knob

Compressor Powered On

Temperature or Sensor Alarm

green

Defrost Cycle

yellow

red

Warm

Position

Off

Position

Cold Position

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.

Heater

E72R only

Case

Temperature

Sensor

Compressor Fan E72R only

Evaporator Temperature Sensor

Sensor and Switch Common

Defrost Termination Switch (optional)

Power

Interface Box and Copy Card TTL Connector

• Controller LEDs: 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.

• 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 remains ON when the adjustment knob is in the OFF position.

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P/N 0539221_H 2-9

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.

Compressor

Powered On

Defrost Cycle

Temperature or

Sensor Alarm

START-UP

The OFF Position does not disconnect line

voltage to the input terminal blocks.

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

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

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

2-10 RefRigeRation/electRical/Safe-net iii

White (Common for Both Sensors)

#11 Not Used

White (Common Both Sensors #10)

Black (Air Sensor #8)

Black (Evaporator Sensor #9)

(Yellow Sheath)

Yellow Sensor: Defrost Termination (Evaporator) Black Sensor: Control (Air)

Typical Sensor to Control Configuration

Black

(Evap.)

Black

(Air)

Yellow Sheath (Evaporator Sensor Defrost Termination)

Black Sheath (Air Sensor-Display)

Black

Yellow

Safe-NET sensor location

Safe-NET Location

Safe-NET Controller

Detail A

Discharge Air Temp Control

Sensor with Tie Strap

Detail B

Safe-NET sensor location

Defrost Termination Sensor

located on second return

bend from the front

bottom row as shown

P/N 0539221_H

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

P/N 0539221_H 2-11

Sequence of Operation

Compressor runs continuously until it reaches its cut-out setting.

Defrost cycle is temperature terminated. Defrost initiates two hours after start up.

When powered up there will be a delay of 30 sec. at start up before the compressor starts.

OFF

Compressor

Starts

Initial Defrost

12 Hours After Start Up

Pull down Compressor On

Maximum Defrost

Time 45 Minutes

Compressor

Starts

Compressor

Start Up

Off Cycle

RLN

Time to Subsequent Defrost (6-Hour or Demand Defrost)

Refrigeration Cycle

(Failsafe)

Defrost Cycle Terminates at

48° F.

Time to Subsequent Defrost (24-Hour or Demand Defrost)

Maximum Defrost

Time 45 Minutes

(Failsafe)

Pulldown After Defrost

Compressor ON

GREEN (REFRIGERATION)

YELLOW (DEFROST)

RED (ALARM)

“OFF” POSITION

WARM COLD

GREEN (REFRIGERATION)

YELLOW (DEFROST)

RED (ALARM)

DISPLAY

Safe-Net III Controller

Low Temperature Freedom Safe-NET III Settings

Safe-NET

Dial

Discharge

air Cut-In

Discharge

air Cut-Out

Avg Discharge Air

Temperature

Product Temperature

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

Safe-NET

Dial

Discharge

air Cut-In

Discharge

air Cut-Out

Avg Discharge

air Temperature

Product Temperature

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

Range

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

2-12 RefRigeRation/electRical/Safe-net iii

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

Warm

Note location of

1. knob setting

Cold

Note:

This procedure initiates a manual or forced defrost.

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

Warm

Rotate knob fully

2. counterclockwise until it stops (full warm - “OFF” position)

Warm

After 10 seconds, but before 20 seconds, rotate knob fully clockwise until it stops (full cold position)

Cold

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

P/N 0539221_H

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

P/N 0539221_H 2-13

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.

MERCHANDISER ELECTRICAL DATA

Merchandiser data sheets for specic models are shipped with this manual. The data sheets

Terminal block NOT for case-to-case wire

connection.

provide merchandiser electrical data, standard electrical schematics, parts lists and performance data. Refer to the merchandiser data sheets and

IDENTIFICATION OF WIRING

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.

Leads for all electrical circuits are identied by

colored plastic bands. These bands correspond

to the color code sticker (shown below) located

inside the merchandiser wireway.

IN STA LLER

It is the contractor’s responsibility to install

merchandiser(s) in accordance with all local

building and health codes.

WIRING COLOR CODE Leads for all electrical circuits are identied 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

*eitheR coloReD SleeVe oR coloReD inSulation

ELECTRICIAN NOTE: Use copper conductor wire only.

CASE MUST BE GROUNDED

theSe aRe maRkeR coloRS wiReS maY VaRY.

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

2-14 RefRigeRation/electRical/Safe-net iii

CONTROLS and ADJUSTMENTS

Refrigeration Controls

Model

RFLNS

RFMNS

Product Application

Frozen Food

Ice Cream

Medium Temp. (Dairy, Deli)

Discharge Air Temperature

-5° F

-12° F

32° F

1. The Safe-NET III Controller controls refrigeration 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.

Defrost Frequency (per day)

Defrost Controls

Type of Defrost

Electric

O Time

Termination Temperature

48°F

Failsafe Time

(Minutes)

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.

P/N 0539221_H

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

P/N 0539221_H 3-1

Freedom Line Reach-in

FACADE, SPLASHGUARD AND BUMPERS

INSTALL FACADE

Position facade supports and fasten to top of case using predrilled holes.

See illustrations on next page.

Install Facade Supports using

holes provided

Fasten end facade to front

facade as shown

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

3-2 Facade SplaShguard and Bumper

3-2 Facade, SplaShguardS and BumperS

Screw Support onto Wireway Cover

Facade Bracket

Detail C

3 Door Facade Shown (2, 4 & 5 Door)

Use 2 inch Facade Trim for Case Lineups, fasten into top of case

3 Door Facade Shown (2, 4 & 5 Door Similar)

Facade Bracket

Line up brackets with holes in wireway cover as shown. Fasten #8 x 1/2 in HX HD screws, 4 places each bracket

Wireway Cover

Top of Facade to

insert into top part of

Facade Bracket as

shown

P/N 0539221_H

Bottom of Facade Panel

to sit into support located

on top of Wireway Cover

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P/N 0539221_H 3-3

Freedom Line Reach-in

AIR FLOW BAFFLE

Air ow bafes are required to be installed between cases to ensure proper air ow circulation of the refrigeration systems. The air ow bafe should be positioned as shown and are fastened at the top of the merchandiser using sheet metal screws.

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

3-4 Facade SplaShguard and Bumper

1. S lide the splashgua rd support bracket's small flange into the

slots in the bas e rail. T hen slide the splashgua rd retaine r

1. S lide the s plas hguard s upport brack e t's s ma ll flange into the

slots in the bas e rail. T hen slide the s plas hguard retainer

ass e mbly under the ca s e a s shown.

2. R otate the retaine r a s s embly clockwise (from right hand s ide)

while pulling towards the front of the cas e until the forward

most flange s its flush with the ba ck of the color pa ne l.

1. S lide the s plas hguard s upport brack e t's s ma ll flange into the

slots in the bas e rail. T hen slide the s plas hguard retainer

ass e mbly under the ca s e a s shown.

2. R otate the retaine r a s s embly clockwise (from right hand s ide)

while pulling towards the front of the cas e until the forward

most flange s its flush with the ba ck of the color pa ne l.

3. Align the retainer ass embly with a nd a ttach to the s upport

bracket us ing #10 s crews. T hen ins tall a #8 s crew through the

color panel int

o the top retainer flange.

3-4 Facade, SplaShguardS and BumperS

INSTALLING SPLASHGUARDS AND BRACKETS

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 splashguards.

Splashguards are joined with a galvanized metal splice connector that comes with the joint kit. Join the splashguards before installing on case. The leveling brackets have a maximum extension of one(1) inch (25mm) for uneven oors.

To install splashguards and brackets:

1. Slide the splashguard support bracket’s small ange into base rail slots. Next, slide the splashguard retainer assembly under the case as shown.

2. Rotate the retainer assembly clockwise (from right hand side) while pulling towards the front of the case, until the forward most ange sits ush with the back of the color panel.

Splashguards Installation

Splashguard

Splice Connector

Side Detail

3. Align the retainer assembly with and attach to the support bracket using #10 screws. Then install a #8 screw through the color panel into the top retainer ange.

DO NOT

br A ckets .

P/N 0539221_H

plAce shims under splAshguArd

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P/N 0539221_H 3-5

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.

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

Silicone-type

Sealer

Splashguard

Cement

Cove Trim

3-6 Facade SplaShguard and Bumper

Merchandiser Joint

Internal Joint Trims

Full Length Bumpers

Starter Bumper

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.

Bumper

P/N 0539221_H

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

Miter Box

Remove protective lm from bumpers once installation is complete.

Optional end bumpers are factory-installed.

P/N 0539211_H 4-1

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 ad-

justment, 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 rechecking the probe temperature or making further adjustments.

Component Location in

RL / RM / RLN /

RLNI Models

Component Location in RLT

Models

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

4-2 Start up

START UP CHECKLIST

Start up should be performed only by a qualied 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.

This main switch is located at the rear of the

wireway on the top, left side 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.

• 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 0539211_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

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P/N 0539211_H 4-3

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.

Safe-NET III CONTROL SETTINGS AND OPERATION

CHECKLIST AFTER 12 HOUR RUN TIME

• 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.

• 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.

These instructions are written for normal frozen food, ice cream, or medium temperature

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

application, and provide optimum settings for normal store conditions. Refer to the Safe-NET instructions starting on Page 2-5. There is also a chart that shows low temp. and medium temp. Freedom settings.

Another reference is the Safe-NET III Manual available on the Hussmann website.

• 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 pump or condensing 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.

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

4-4 Start up

LOAD LIMITS

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

disers be stocked beyond the load limits indicated.

CASE LOAD LIMIT

Do not stock product

past load limits.

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. 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.

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

Do not store items or ammable

materials atop the unit.

Do not walk on case.

P/N 0539211_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

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

to Page 1-1).

Please note that the tape cannot be exposed after installation.

P/N 0539211_H 4-5

This is an NSF-7 &

US FDA Food Code

Required

Thermometer

Thermometer — Hussmann Part TM.491 1251

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

Suggested Mounting Locations

in Single De ck G la ss Front

Me rchandisers

Package Gua rd, Fa cing Out

Doub le Stic k Tape

Fle xible Plastic Fits in Pr ice Ta g Moldings

Hussmann P/N 0429971_C 10/2007

End Panel

Pric e Ta g Mo ld ing

Suggested Mounting Locations

in Multi-deck Me rchandisers

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

4-6 Start up

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 locations

provided herein are possible

locations. It is the responsibility of

the purchaser / user to determine

the location with 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 plsatic 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 officals.

Keep with merchandiser

or give to store manager.

DO NOT DESTROY.

P/N 0539211_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

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P/N 0539211_H 5-1

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 finish.

or scouriNg pads.

Never use abrasive cleaNsers

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.

• 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

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 U s e :

• 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 NOT allow cleaning agent or

cloth to contact food product.

Product will be degraded and may spoil if al-

lowed to sit in a non-refrigerated area.

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

• 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.

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.

5-2 Maintenance

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.

SHUT FANS OFF

DURING CLEANING

PROCESS.

DRAIN TEE REF

BUSHING-REDUCER 1 1/4 X 1 IN

FITTING-1" MALE THREADED BARBED TUBE ADAPTER

TUBING-PVC CLEAR FLEX ID .750 X 1.000 OD

CLIP JIFFY FOR 3/4 OD

CLAMP HOSE

COVER NOT SHOWN FOR CLARITY

CLEANING CONDENSATE PAN FLOAT SWITCH

Shut off power. Remove the condensate pan cover. Remove the bracket that holds the oat switch in place. Remove the oat switch cover. Pull out the screen to clean. Also clean inside of oat switch with warm water. Use warm water to clean the screen.

CONDENSATE RESERVOIR

PLUG INTO DATA PORT

ON THE PUMP

DETAILA

PAN-CONDENSATE RESERVOIR

SUMP-UNIT DETECTION

POSITION AS SHOWN WITH VENT

STUB THROUGH THE HOLE IN BRACKET

BRACKET-SUMP

CONNECT SUMP UNIT TO PUMP USING

PROVIDED 0551020 TUBING

SECURE PUMP TO BRACKET

INSTALL PUMP GUARD WITH THE PUMP

SECURE 0543836 TUBING TO

THE OUTPUT OF PUMP USING

USING 0551228 SCREW

SEE DETAIL B

CLAMP-HOSE 1/4 TO 5/8

0529081000

PUMP-MAXI ORANGE

BRACKET-HANDY BOX PLACEMENT ON BACK OF HANDY BOX DEPENDENT ON WHICH SIDE

PVC CONNECTOR IS MOUNTED

CABLE-ASPEN POWER

COVER-HANDY BOX

0551019

BOX-HANDY

CONNECTOR PVC ST .375 SNAP (5 DOOR ONLY) CONNECTOR PVC 90 .375 SNAP (3 & 4 DOOR)

CONDUIT PVC X-FLEX .375 ROUTEDALONG BOTTOM FOAMASSY AND UP THE REAR FOAM PANELS TO TOP OF CASE AND INTO

RACEWAY

P/N 0539221_H

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

P/N 0539211_H 5-3

Freedom Line Reach-in

CLEANING CONDENSATE PUMP AND HEATED EVAPORATION PANS

always disconnecT power aT The main

case disconnecT Before servicing The equipmenT.

• The condensate water outlet for the Freedom case models empties into a limited capacity evaporation pan.

• Clean product spills immediately. If a product spill enters the Condensate Pump or Heated Evaporation Pans, a maintenance technician may be required to clean both the pump and heated pans.

• Clean case interior with a sponge or soft cloth, wetted with mild soap and water. Do not pour water from a bucket or hose into case drain. Water introduced during cleaning will cause the evaporation pan to overow.

• If using the optional Defrost Synchronization controls, the Master Sync Switch needs to be reset by the maintenance technician after re-applying electrical power to case.

— 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.

• Sediment and debris will clog the Condensate Pump and plastic tubing for water delivery to the Heated Evaporation Pans.

• The Condensate Pump and the Heated Evaporation Pans require regular monthly inspection. The Condensate Pump is located below the case bottom. The Heated Evaporation Pans are located on the case top. Evidence of excess water or odor is an indication that immediate service is required.

• Recommended cleaning the Condensate Pump reservoir and Heated Evaporation Pans is with mild soap and water. Disconnect power before cleaning. Empty pump sump and heater pans of water before reapplying power.

Evaporation Pan is Hot!

and poses risk of bodily injury — Always wear gloves and protective eye wear when servicing condensate pump and heated evaporation pans. Turn off evaporation pan heater, and allow pan to cool before servicing.

5-4 Maintenance

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.

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.

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.

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.

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.

REMOVING SCRATCHES FROM BUMPER

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.

P/N 0539221_H

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

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 0539211_H 5-5

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

None

Cleaning

None

Replacement

N/A

0.2

0.05

0.1

0.2

N/A

0.05

N/A

0.05

1.2

0.6

0.4

0.8

N/A

0.03

N/A

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.

5-6 Maintenance

NOTES:

P/N 0539221_H

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

P/N 0539211_H 6-1

Freedom Line Reach-in

SERVICE

REPLACING FAN MOTORS AND BLADES

For access to these fans:

Always disconnect the electrical power

1. Turn off power.

2. Remove bottom display pans.

3. Disconnect fan from wiring harness.

4. Remove fan blade.

5. Lift fan plenum and remove screws holding bottom of motor to fan basket.

6. Replace fan motor and blade.

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.

Service

# MO.XXXXXXX

7. Lower fan plenum.

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.

XXXXXXX

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

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

6-2 Service

Product will be degraded and may spoil if

allowed to sit in a non-refrigerated area.

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

Bend Tabs

on Each

Bracket

to Release

or Secure

Heaters

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.

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.

3. Remove clips holding heater to coil tube.

4. Remove heater from slots in coil bracket.

5. Position new heater in slots.

6. Replace clips.

7. Replace the coil cover.

8. Turn on power.

9. Verify that heater is working correctly.

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

Single heater secured at both front and back of coil

P/N 0539211_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

P/N 0539211_H 6-3

Freedom Line Reach-in

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

certain sealer is replaced.

4. Reconnect power.

5. Verify that heater is working correctly.

REPLACING DAMAGED DRAIN FITTING

(OPTIONAL)

The following procedure is for the eld repair of a broken drain tting.

1. Use a drill with a 17/8-inch (48 mm) hole saw to drill out the bottom of the drain tting. Be sure to drill completely through tting and bottom liner.

Drain Fitting Viewed from Inside Case

2. Insert adapter into drain tting. Do NOT use thread sealer on ABS drain tting. If sealer is used the ABS drain tting may crack or leak! (Tee should be

tightened no more than 4 turns.) Do not overtighten threads.

Do NOT use Thread Sealer on Drain Fitting!

End Section View

6-4 Service

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: 1-800-645-3413 Fax: 1-800-645-3414

X-Ergon 1570 E. Northgate P.O. Box 2102 Irving, TX 75062 Phone: 1-800-527-9916

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.

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.

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)

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.

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 0539211_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

P/N 0539211_H 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

/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 OptiOnal Drip piping

Do NOT use Thread Sealer on Drain Fitting!

(Drain Fitting)

Factory Installed (four turns)

Approx.

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

tightened no more than 4 turns.) Do not overtighten threads.

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

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

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.

Rotate Water Seal towards back of Merchandiser if required

P/N 0539211_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

P/N 0539211_H 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 OptiOnal Drip piping

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 0539211_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

Application Engineering

BULLETIN

Application Engineering

BULLETIN

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

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.

Application Engineering

BULLETIN

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

AE8-1376 R2

WARNING

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.

CAUTION

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.

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.

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 f ailure P3 DLT probe failure dLt DLT temperature alarm

dLL DLT lock alarm

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

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 T ransducer

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.

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)

Fan Motor 1

ServiceActive Alarm

Fan Motor 2

Figure 4

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.

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 immediatel y release the k ey: 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. Hol d down the + keys for 3 seconds or until the “PSI” LED starts blinking 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. Ent er the Programming mode by pressing the + keys for 3 s econds (th e PSI LED starts blinking).

2. Rel ease the ke ys, then push again the + keys for at least 7 seconds. 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 wait 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

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 “POF” message will be displayed and the k eyboard will be locked. At this point it will b e

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.

and 3rd parameter will either be added or removed.

Ci.n

. These parameters are in the Programming Menu as well as

AE8-1376 R2

Application Engineering

BULLETIN

rSA

DLT

Loc rCA rCH rFH

dLt

LOC

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

2. Release the keys, then push again the + keys for more than 7 seconds . 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 listed below.

4. Press the key to display its value.

5. Use Change the

6. Press to store the new value and reset the c ount er

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.

, 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.

=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)

( 0- 999; res. 1);

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

(0-999 resolution 1)

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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)

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)

Maximum set point (PSIG)

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

Bump Start Compressor on time (seconds)

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

25 15

2 or 4 2 - 255

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

No no - YES

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

oU – US

S - Cin

-15; 0 = always

automatic restart

-15; 0 = always

automatic restart

0 - 15

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 11 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.

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 Cycling 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 Low Voltage

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

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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

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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)

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)

AE8-1376 R2

Application Engineering

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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.

AE8-1376 R2

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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.

To obtain warranty information

or other support, contact your

Hussmann representative.

Please include the model and

serial number of the product.

Hussmann Corporation, Corporate Headquarters: Bridgeton, Missouri, U.S.A. 63044-2483 01 October 2012

Hussmann Corporation

12999 St. Charles Rock Road Bridgeton, MO 63044-2483 www.hussmann.com

Hussmann RFLNS Installation Manual

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Frequently Asked Questions

User Manual