Hussmann RFLNS User manual

IMPORTANT
Keep in store for
future reference!
Installation &
Operation Manual
Shipped With Case Data Sheets
P/N 0539221_T
August 2021
Spanish P/N 0541249
RFLNS, RFMNS & RFLTM
Freedom Line
Low or Medium Temperature
Compressor Ready
Tall or Narrow Footprint
Reach-in
Merchandisers
®
Æ
MANUAL- I/O FREEDOM REACH-IN

BEFORE YOU BEGIN
Read these instructions completely and carefully.
PERSONAL PROTECTION EQUIPMENT (PPE)
Personal Protection Equipment (PPE) is required whenever servicing this equipment. Always
wear safety glasses, gloves, protective boots or shoes, long pants, and a long-sleeve shirt when
handling glass.
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 clarified by the California State
government, Proposition 65 can be considered more of
a‘right to know’ law than a pure product safetylaw.
When used as designed, Hussmann believes that our
products are notharmful. 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.
August 31, 2018
Do not use mechanical devices or other
means to accelerate the defrosting
process.
Do not use electrical appliances inside
the food storage compartments of the
case(s).
Case ventilation openings must be clear
of any obstructions. Do not damage the
refrigerant circuit.

P/N 0539221_T iii
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in
TABLE OF CONTENTS
IMPORTANT
KEEP IN STORE FOR FUTURE REFERENCE
Quality that sets industry standards!
12999 St. Charles Rock Road • Bridgeton, MO 63044-2483
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900
www.hussmann.com
© 2021 Hussmann Corporation
®
®
®
®
®
REVISION HISTORY ..................... iv
ANSI Z535.5 DEFINITIONS ................ iv
UL Listing .............................1-1
Federal / State Regulations ............... 1-1
Freedom Line Description ............... 1-1
Location .............................. 1-2
Shipping Damage ....................... 1-2
Shipping Braces ........................ 1-3
Shipping Block . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Exterior Loading ....................... 1-3
Moving Merchandisers (Narrow Entrance) .. 1-3
Merchandisers Shipped with End Installed ... 1-4
Leveling............................... 1-4
Door Adjustment ........................1-6
Joining ............................... 1-6
REFRIGERATION / ELECTRICAL / CONTROLLER
Refrigerant .............................. 2-1
Field Installation of Condensing Unit ........ 2-2
About Quick Connect Couplings ............ 2-4
Connect Lines ........................... 2-4
Correctly Tightened Coupling ................2-6
Insulate Refrigerant Lines .................. 2-7
Field Wiring ............................. 2-7
Electronic Controller ..................... 2-10
Controller Operation ..................... 2-12
Merchandiser Electrical Data .............. 2-14
Electrical Connections .................... 2-14
Identication of Wiring ................... 2-14
Controls and Adjustments ................ 2-15
FACADE, SPLASHGUARDS AND BUMPERS
Install Facade ............................3-1
Air Flow Bafe .......................... 3-3
Installing Splashguards and Brackets ......... 3-4
Sealing Splashguard to Floor ............... 3-5
Installing Bumpers ........................ 3-6
START UP / OPERATION
Expansion Valve Adjustment ............... 4-2
Prior to Start Up Checklist ................. 4-3
Start Up Checklist ........................ 4-3
Defrost ................................. 4-4
Control Settings and Operation.............. 4-4
Checklist After 12 Hour Run Time ........... 4-4
Load Limits ............................. 4-5
Stocking ................................ 4-5
Installing FDA/NSF
Required Thermometer ................... 4-5
MAINTENANCE
Care and Cleaning ........................ 5-1
Cleaning Honeycomb Assemblies ............ 5-2
Cleaning Stainless Steel Surfaces ............. 5-2
Cleaning Coils ........................... 5-2
Cleaning Condensate Pump and Heated
Evaporation Pans ........................ 5-3
Cleaning Under Merchandisers ............. 5-3
Removing Scratches from Bumper ........... 5-3
Top Mount Cleaning & Maintenance ......... 5-4
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 ...................... 6-5
Waste Outlet and Water Seal ............... 6-5
Installing Drip Piping ..................... 6-5
WARRANTY

iv Contents
P/N 0539221_T U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
REVISION HISTORY
REVISION T - Revised Maintenance Section for Condensate
Pump; Updated Checklist on Page, 4-4.
REVISION R - Added Warning Page; Updated Bulletin;
Changed wall clearance; Updated pan and pump install;
Coupling Tightening; Facade install; Added joining
instructions, revised shipping block; Added controller wiring
diagram; Added controller setpoints
REVISION P - August 2018
Updated Quick Connect Coupling, Page 2-4-2-6; Updated
California Warning
REVISION N - September 2017
Revised for new Controller
REVISION M - February 2017
Updated Page 4-1
REVISION L - Update for Team Center
REVISION K - January 2017
Added new model - RFLTM throughout manual Updated
Page 1-1 UL Listing; Federal Regulations and DOE 2017
Updated Page 2-4 to 2-6; Quick Connect Couplings; Page 2-13
updated low temp Settings; Note on Page 4-2; Updated Page 6-2
REVISION J - August 2015
Revised checklist GFCI, Page 4-3
Revised Connect lines and Refrigerant Lines, Page 2-5
REVISION H — wind chill
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
REVISION D – July 2014
Updated Cover Photo
REVISION C – July 2014
* * * * * * * * * * * * * * * * * * * * * * * * * *
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.

P/N 0539221_T 1-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in
UL LISTING
These merchandisers are manufactured to
meet ANSI/ UL 471 standard requirements
for safety. Proper installation is required to
maintain the listing.
FEDERAL / STATE REGULATION
These merchandisers at the time they are
manufactured, meet all federal and state/
provincial regulations. Proper installation
is required to ensure these standards are
maintained. Near the serial plate, each
merchandiser carries a label identifying the
environment for which the merchandiser was
designed for use.
In compliance with DOE 2017, standard low
temp Reach In cases with Innovator I Doors
are equipped with an anti-sweat controller that
maintains the door heat at a level that meets
DOE energy limits. Any factory or eld-installed
anti-sweat controller applied to a low temp
Reach In case with Innovator I Doors must be
programmed to cycle the heaters at no more
than 50% run time at design conditions of 75
degrees, 55% RH for frozen food operating
condition.
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 RFLTM, 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 an 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. A defrost
termination sensor is located on the bottom,
center evaporator coil return bends.
The controller is pre-programmed for low or
medium temperature operation and may be
adjusted to desired operating temperature by
the control keypad.
Cases running on individual condensing units
may be installed as stand-alone cases with ends,
or as a part of a lineup.
INSTALLATION
Excessive ambient conditions may cause
condensation and therefore sweating of
doors. Facility operators should monitor
doors and floor conditions to ensure safety
of persons.

1-2 InstALLAtIon
P/N 0539221_T U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
Do not store items or ammable
materials atop the unit.
Do not walk on case.
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 aminimum
clearance of 4 inches (102 mm)between
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.
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 partitions may be acrylic
or insulated, depending on case’s operating
temperature.
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.
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.
Apparent Loss Or Damage
If there is an obvious loss or damage, it must be
noted on the freight bill or express receipt and
signed by the carrier’s agent; otherwise, carrier
may refuse claim. The carrier will supply necessary
forms.
Concealed Loss Or Damage
When loss or damage is not apparent until after
equipment is uncrated, a claim for concealed
damage is made. Upon discovering damage, make
request in writing to carrier for inspection within
15days and retain all packing. The carrier will
supply inspection report and required claim forms.

P/N 0539221_T 1-3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in
SHIPPING BRACES
Move the merchandiser as close as possible
to its permanent location and then remove all
packaging. Check for damage before discarding
packaging. Remove all separately packed
accessories such as kits and shelves.
SHIPPING BLOCK(s)
Shipping block(s) must be removed before
operating cases(s).
Locate and remove the shipping block(s) near
the heat exchanger as shown below.
This block was installed to minimize shipping
vibration. Remove the bottom display pans and
air return grilles from the case(s).
EXTERIOR LOADING
Do NOT walk on top of merchandisers or damage to
the merchandisers and serious personal injury could
occur. They are noT sTrucTurally designed To
supporT excessive exTernal loading such as the
weight of a person. Do not 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 for RFLNS & RFMNS
cases is 36 in. x 80 in. The minimum door opening
for RFLTM cases is 44 in. x 87.5 in.
The door handles can be removed for narrow store
entrances.
Front Shipping Brace
Shipping
Block
Heat Exchanger
Top View of Merchandiser
Interior View of Case Bottom
Remove
Screws from
Door Handle

1-4 InstALLAtIon
P/N 0539221_T U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
MERCHANDISERS SHIPPED WITH END
INSTALLED (not for RFLTM)
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.
Therefore, be sure To replace These bolTs
wiTh The shorTer bolTs provided.
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.
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: BegIn LIneup LeveLIng from the
hIghest poInt of the store fLoor.
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.
Excessive ambient conditions may cause
condensation and therefore sweating of doors.
Facility operators should monitor doors and
oor conditions to ensure safety of persons.
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_T 1-5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in
Base
Component
Approximately
Centered
Rear of Reach-In
Base Component
Shim HereShim Here
Correct Shim Location is Critical
No Gap
between
earthquake
shoe and the
oor
If any of the Earthquake Shoes are not in contact with the floor,
these Earthquake shoe locations must be shimmed, using
provided shims Shim
Locations
Earthquake
Shoe
Skid External Base
4-Door Merchandiser Shown

1-6 InstALLAtIon
P/N 0539221_T U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
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
This bolt location
not present for
RFLTM

P/N 0539221_T 2-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in
REFRIGERATION / ELECTRICAL / CONTROLLER
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.
REFRIGERANT
Freedom cases and condensing unit are shipped
separately with the correct charge amount to
equal the total charge needed for proper operation.
Labels are placed on top of the case near
the condensing unit connections that show
the correct refrigerant type and total charge
quantity.
When evacuating and re-charging, charge with
the total quantity shown on this label. With the
correct refrigerant charge, some vapor may be
present in the sightglass. Charging to a “clear”
sightglass may result in compressor failures due
to excessive refrigerant.
— LOCK OUT / TAG OUT —
To avoid serious injury or death from electrical
shock, always disconnect the electrical
power at the main disconnect when servicing
or replacing any electrical component. This
includes, but is not limited to, such items as
doors, lights, fans, heaters, and thermostats.

2-2 REFRIGERATION / ELECTRICAL / CONTROLLER
P/N 0539221_T U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
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.
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.
Condensing Unit
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
5-Door Case & Condenser Unit Shown
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. Rear bracket not necessary for
RFLTM.
Connect quick connects on flexible liquid &
suction lines from condensing unit to quick
connects on pipes exiting top right of case

P/N 0539221_T 2-3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in
Blocked drain lines will cause water to back up
in the case and spill onto the floor, causing a
slip hazard.
CONDUIT PVC X-FLEX
FROM HANDY BOX LOCATED
ON BOTTOM OF CASE
CONDENSATE EVAP PAN
PLUG CONDENSATE EVAP PAN
INTO GFCI OUTLET AS SHOWN
CLAMP CONDUIT PVC X-FLEX
TO TOP OF CASE TUBING FROM CONDENSATE
PUMP MOUNTED TO BOTTOM OF CASE
CLAMP CONDUIT PVC X-FLEX
AND 3/8" TUBING TO REAR
FOAM PANELS AS REQUIRED
COPPER TUBE
CONDENSATE PAN
ATTACH 3/8" TUBING TO
CONDENSATE PAN COPPER TUBE
USE TIE-RAP TO SECURE
CONNECTOR TO
KNOCKOUT IN RACEWAY
CLAMP 3/8" TUBING
TO TOP OF CASE
CLAMP 3/8" COPPER TUBE
TO TOP OF CASE
DETAIL A
A
Condensate Evaporator Pan
Copper Tube Condensate Pan
Clamp 3/8 inch
copper tube to top
of case
Attach 3/8 inch tubing to condensate
pan copper tube use tie-rap to secure
Clamp 3/8 inch tubing to top of case
Tubing from Condensate Pump is
mounted to bottom of Case
Detail A
Clamp Conduit PVC X-Flex
and 3/8 Tubing to rear foam
panels as required
Connector
to knockout
in Wireway
Conduit PVC X-Flex from
Handy Box located at
bottom of Case
Plug Condensate
Evap Pan into GFCI
Outlet as Shown
Clamp Conduit PVC
X-Flex to top of Case
Condensate Pan Installation and Location

2-4 REFRIGERATION / ELECTRICAL / CONTROLLER
P/N 0539221_T U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
VIEW LOOKING AT TOP OF CASE RH SIDE
POSITION EVAPORATOR TO DIMENSIONS SHOWN
AND INSTALL (4) SM SELF-DRILL SCREWS INTO
TOP FOAM PANEL LINER
EVAPORATOR TO BE
PLUGGED INTO GFCI OUTLET
MOUNTED ON TOP RIGHT SIDE
OF RACEWAY
9.00
APPROX.
17.00 APPROX.
Position heated condensate pan to
Dimensions shown and install (4)
SM Self-Drill Screws into Top Foam
Panel Liner
View is looking at top of case, right side
17 inches
(432 mm)
9 inches
(229 mm)
Heated condensate pan
is to be plugged into GFCI
outlet, mounted on top,
right side of wireway
Condensate Pan Installation, Location and Electrical
A
Detail A
Foam Seal must be in place, sealant must
be applied around the copper lines after
connecting the condensing unit.
(approximate
location)
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.
Step 1:
Apply refrigerant oil to the entire surface of
diaphragm, o-ring and threaded area of male
coupling assembly. The amount of lubricant
used must cover all designated surfaces
sufciently. Ideal application is a small
applicator brush saturated with lubricant and
applied liberally.

P/N 0539221_T 2-5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in
Step 2:
Ensure that the coupling halves are held in
proper alignment with each other prior to
starting the threads of the female coupling nut
onto the male half.
The coupling end faces should be parallel
with each other and visually in line with each
other, this allows the female coupling nut to
easily be threaded on by hand for the initial
2-3 rotations of the union nut. These initial
rotations will bring the diaphragm in contact
and a sharp increase in torque will be felt when
they come into contact and start to pierce the
diaphragms on each coupling half.
If the nut will not start by hand, adjust the
position of the line set to ensure proper
coupling alignment and eliminate/minimize
all side load force on the coupling during
assembly.
Step 3:
Using appropriate size wrenches, reference
table below for the female coupling body and
female union nut, tighten the female union
nut, according to the torque specs below, while
preventing rotation of the female body with
respect to the male half. The nut should be
tightened until a denite increase in resistance,
metal to metal contact occurs, is felt (at this
point, the nut will have covered most of the
threads on the male body). It is important to
ensure the male and female coupling bodies
DO NOT ROTATE during any portion of the
wrench installation.
Apply supplied Oil to Threads, O-rings,
and Diaphragm. Attach Case Lines to Cond. Unit.

2-6 REFRIGERATION / ELECTRICAL / CONTROLLER
P/N 0539221_T U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
Step 4:
Using a permanent marker or scribe, mark a
line lengthwise from the female coupling union
nut to either the bulkhead or female coupling
body. Then tighten an additional one (1)
wrench at (60°); refer to the marking on the
union nut to conrm the rotation has occurred
The nal rotation is necessary to ensure the
formation of the leak-proof seal, between the
male and female couplings.
CORRECTLY TIGHTENED COUPLING
The swivel nut end contains one diaphragm in
the center post. The male tting contains the
knife blades and its own diaphragm.
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.
failure.
Hex Wrench
Coupling Size
3/8in. Male 3/4in.
3/8in. Female 13/16 in.
5/8in. Male 1 1/16 in.
5/8in. Female 1 5/16 in.
Coupling Foot Pounds
Size (Ft. Lbs.)
3/8in. 10-12
5/8in. 35-45
IMPORTANT!
Tighten swivel ng unl the ng has
signicant resistance (ngs booming out).
Apply ¼ turn past the resistance. Ensure no
threads are visable.

P/N 0539221_T 2-7
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in
INSULATE REFRIGERANT LINES
Check that all suction lines are adequately
covered with insulation from case penetration
to compressor, including suction service
valves, and accumulator on low temp units,
as some insulation may have been dislodged
duing shipping and installation. 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.
Field wiring lands on the line side of the service
disconnect.
Terminal blocks are used for eld connection
of the 120V single phase and 208/230V single
phase power supply. The terminal blocks
are located inside the electrical box on top
of the case. The wiring diagram and circuit
requirements are provided on the Technical
Data Sheets provided with the case and
condensing unit. A disconnect switch may be
provided as an option. When this switch is off,
some electrical terminals in the case wireway
may be energized. The wiring connection for
the condensing unit is provided with 5-ft leads
and 1⁄4-inch terminals. The conduit must be
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 GFCI receptacle at the top of the case.
Insulation
Compressor
26
01 11 21 31 41 71 02 12 22 52 62
24
16
8765432
1
8765432
1
01 11 21 31 41 71 02 12 22 52
24
16

  

Disconnect Switch
Reference Wiring Diagram for
Appropriate Terminal Connections.
Connectors
Conduit Wire
Terminal Strip
Electrical Box
Control Box and Disconnect Wiring
Service Disconnect to be installed
on Case or Store Wall.
IMPORTANT:
Refer to specic wiring diagrams or condensing
unit data sheets. Field wiring lands on the line side
of the service disconnect.

2-8 REFRIGERATION / ELECTRICAL / CONTROLLER
P/N 0539221_T U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
7.75
.75
60.50
.62
1.25
Bottom RH View of 4-Door RFLTM Case
Conduit and Tubing to top of Case
Conduit PVC X-Flex and 3/8 Inch Tubing (Factory Installed)
51.83
Condensate Reservoir
Pump Mounting Bracket (Factory Installed)
Handy Box Bracket (Factory Installed)
Dimensions In Inches
Factory Installed

P/N 0539221_T 2-9
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Freedom Line Reach-in
ENCLOSURE ASSY-ELECTRICAL BLUE DIAMOND W/OUT PAN
TEE 1 1/4 IN T X S X S
TEE 1 1/4 IN T X S X S
ENCLOSURE ASSY-ELECTRICAL BLUE DIAMOND W/OUT PAN
RFLNS2 DOOR CASE SHOWN
PUMP LOCATION SHOWN FOR RFLNS 2 AND 4 DOOR CASE

2-10 REFRIGERATION / ELECTRICAL / CONTROLLER
P/N 0539221_T U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
ELECTRONIC CONTROLLER
Safety controls are installed on Freedom
condensing units to protect the compressor
from various errors or adverse conditions:
• High pressure safety control
• Low pressure safety control
• Compressor discharge temperature sensor
Air cooled condensing units with Electronic
Unit Controller:
On condensing units that are equipped with
the Emerson Electronic Unit Controller, the
pressure controls and discharge line alarm
are incorporated into the controller on the
condensing unit.
The high pressure cut-out is a non-
adjustable pressure switch with a cut-out
of 440 psig. The low pressure control and
compressor discharge temperature setpoint
are programmed into the electronic unit
controller on the condensing unit. The
compressor discharge temperature is set to
cut out at 225°F. The low pressure control is
set to cut out at 15 psig, and cut in at 25 psig.
For low temp units, the control is set to cut
out at 5 psig and cut in at 15 psig.
Air cooled condensing units without Electronic
Unit Controller:
On Freedom cases that have condensing
units that are not equipped with the Emerson
Electronic Unit Controller, including water
cooled units, the high and low pressure safety
controls are connected to terminals 18 and
19 of the XR75 case controller. Air cooled
unit have a discharge line sensor, which is
connected to terminals 21 and 23. The case
controller parameters are set at the factory
to incorporate the controls. The pressure
controls are not adjustable. The discharge
safety is set in the case controller to cut out
at 230°F.
These controls must be connected after
installation of the condensing unit. Harnesses
are provided and marked to show the
connections (see wiring diagram on next page).
The parameters in the Dixell XR75 are set up
in the factory to enable the pressure control
functionality. The parameters affecting this
control are shown in the diagram below.
Parameter Description Value
P4P Fourth probe presence yes
AP2 Probe selection for condener temperature alarm P4
AU2 Condenser high temperature alarm 220
AH2 Dier for condenser temperature alarm recovery 45
Ad2 Condenser temperature alarm delay 15
dA2 Delay of condenser temperature alarm at startup 0
AC2 Compressor o for condenser high temperature alarm yes
tbA Alarm relay switch o by pushing a key yes
i1F Digital input 1 conguration dor
i2P Digital input 2 polarity OP
i2F Digital input 2 conguration PAL
did Digital input 2 alarm delay 30
nPS Number of activations of pressure switch 3