Hussman P N 0387183 D Users Manual 0387183_D.qxp

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Merchandisers
®
IIMMPPOORRTTAANNTT
Keep in store for
future reference!
Installation &
Operation Manual
Shipped With Case Data Sheets
P/N 0387183_D
Impact Series
October 2007
Reach-in Merchandisers
Medium and Low Temperature Cases
iii
P/N 0387183_D
Table of Contents
INSTALLATION
NSF Certification . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Shipping Damage . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Exterior Loading . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Merchandisers Shipped With End Installed . . . . 1-2
Shipping Braces . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Remove Front Panel . . . . . . . . . . . . . . . . . . . . . . 1-2
Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Door Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Joining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Installing Splashguard Brackets . . . . . . . . . . . . . 1-4
Installing Bumpers . . . . . . . . . . . . . . . . . . . . . . . . 1-5
REFRIGERATION / ELECTRICAL
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Branch Line Piping . . . . . . . . . . . . . . . . . . . . . . . 2-2
Expansion Valve Adjustment . . . . . . . . . . . . . . . 2-3
Refrigeration Thermostat . . . . . . . . . . . . . . . . . . . 2-3
Defrost Termination Thermostat . . . . . . . . . . . . . 2-5
Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Merchandiser Electrical Data . . . . . . . . . . . . . . . 2-8
Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Electrical Connections . . . . . . . . . . . . . . . . . . . . 2-8
Identification of Wiring . . . . . . . . . . . . . . . . . . . 2-8
Wiring Color Code . . . . . . . . . . . . . . . . . . . . . . . 2-8
DRIP PIPING AND SPLASHGUARDS
Waste Outlet and Water Seal . . . . . . . . . . . . . . . . 3-1
Installing Drip Piping . . . . . . . . . . . . . . . . . . . . . 3-1
Installing Splashguards . . . . . . . . . . . . . . . . . . . . 3-2
Sealing Splashguard to Floor . . . . . . . . . . . . . . . 3-3
START UP / OPERATION
Start up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Stocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Load Limit Profiles . . . . . . . . . . . . . . . . . . . . . . . 4-1
Installing FDA/NSF Required Thermometer . . .4-2
MAINTENANCE
Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Cleaning Honeycomb Assemblies . . . . . . . . . . . . 5-2
Cleaning Under Merchandisers . . . . . . . . . . . . . 5-2
Removing Scratches from Bumper . . . . . . . . . . . 5-2
SERVICE
Replacing Fan Motors and Blades . . . . . . . . . . . 6-1
Replacing Electric Defrost Heaters . . . . . . . . . . 6-3
Replacing Drain Pan Heater . . . . . . . . . . . . . . . . 6-5
RLT with Gas Defrost Only: Replacing
Slave Plate Heater . . . . . . . . . . . . . . . . . . . . . . 6-6
Removing RLT Return Air Bracket . . . . . . . . . . 6-7
Replacing Lamp Ballast (other than RLT) . . . . . 6-8
Replacing RLT Lamp Ballast . . . . . . . . . . . . . . . 6-9
Servicing Vertical Lighting . . . . . . . . . . . . . . . 6-10
Servicing Doors and Frames . . . . . . . . . . . . . . 6-10
Replacing Door or Door Frame Parts . . . . . . . 6-10
Replacing Damaged Drain Fitting . . . . . . . . . . . 6-11
Repairing Aluminum Coils . . . . . . . . . . . . . . . 6-12
WARRANTY
IMPORTANT
KEEP IN STORE FOR FUTURE REFERENCE
Quality that sets industry standards!
12999 St. Charles Rock Road • Bridgeton, MO 63044-2483
U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900
www.hussmann.com
© 2007 Hussmann Corporation
®
®
INSTALLATION
TOOL LIST
Unloading From Trailer:
Lever Bar (also know as a Mule,
Johnson Bar, J-bar, Lever Dolly, and pry lever)
Moving Dolly
Setting Case Line-Up:
Level, 4 ft suggested
Ratchet
1/4in. Socket
5/16 in. Socket
1/2in. Socket
Battery Drill/Screw Gun
Caulking Gun
10 in. Adjustable Crescent Wrench
REVISION D — SEPTEMBER 2007
1. Added front panel text and illustration, Page 1-2.
2. Clarified shimming directions, page 1-3.
3. Added RLT information throughout.
4. Added note to remove bumper protective film, Page 1-6.
5. Added information on Always*Clear™ glass, page 5-1.
6. Removed reference to Anthony doors, Page 6-5.
7. Added repairing aluminum coil, Page 6-12.
8. Changed warranty page.
9. Added Installation Tool List, page iv.
10. Added revision history, page iv.
REVISION C — JUNE 2002
1. Added NSF information,pages 1-1,4-2 through 4-4.
2. Sections 2 through 6 are completely rewritten.
3. Changed warranty to March 15,2002.
P/N 0387183_D
iv CONTENTS
NSF CERTIFICATION
These merchandisers are manufactured to meet
ANSI / National Sanitation Foundation (NSF®)
Standard #7 requirements. Proper installation is
required to maintain certification. Near the serial
plate, each case carries a label identifying the
type of application for which the case was certi-
fied.
ANSI/NSF-7 Type I – Display Refrigerator / Freezer
Intended for 75°F / 55%RH Ambient Application
ANSI/NSF-7 Type II – Display Refrigerator / Freezer
Intended for 80°F / 55%RH Ambient Application
ANSI/NSF-7 – Display Refrigerator
Intended for Bulk Produce
LOCATION
These merchandisers are designed for displaying
products in air conditioned stores where tempera-
ture is maintained at or below the ANSI/NSF-7
specified level and relative humidity is maintained
at or below 55%.
Placing refrigerated merchandisers in direct sun-
light, near hot tables or near other heat sources
could impair their efficiency.
Like other merchandisers, these are sensitive to air
disturbances. Air currents passing around mer-
chandisers will seriously impair their operation.
Do NOT allow air conditioning, electric fans,
open doors or windows, etc. to create air currents
around the merchandisers.
To prevent sweating on the exterior surfaces
of merchandisers, there must be A MINIMUM
CLEARANCE OF 4 INCHES (102 MM)between the
merchandisers and other fixtures or walls.
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.
SHIPPING DAMAGE
All equipment should be thoroughly examined
for shipping damage before and during unload-
ing.
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 neces-
sary 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.
Reach-In
P/N 0387183_D 1-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
INSTALLATION
Do not walk or put heavy objects on case.
CAUTION
!
EXTERIOR LOADING
Do NOT walk on top of merchandisers or dam-
age to the merchandisers and serious personal
injury could occur. THEY ARE NOT STRUCTURALLY
DESIGNED TO SUPPORT EXCESSIVE EXTERNAL
LOADING such as the weight of a person. Do not
place heavy objects on the merchandiser.
MERCHANDISERS SHIPPED WITH END
INSTALLED
If the case was shipped with the end installed,
two long bolts were used to hold the shipping
brace to the end. If the shipping bolts are
reinserted after removing the brace, they will
extend into the product area and may damage
the coil. 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.
SHIPPING BRACES
Move the merchandiser as close as possible to its
permanent location and then remove all packag-
ing. Check for damage before discarding packag-
ing. 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 FRONT PANEL
(DOES NOT APPLY TO RLT)
Before setting case, remove the front panel as
follows: remove screws from front panel tabs,
then lift the front panel. Refer to the illustration
below. Set panel and screws aside to reinstall
once all electrical work is complete.
At completion of all electrical work, installation
contractor shall re-install the panels using care to
ensure all panels are centered and properly
fastened.
1-2 INSTALLATION
P/N 0387183_D WWW.HUSSMANN.COM
Shipping
Block
Heat Exchanger
Top View of Merchandiser
Tabs Fit in
Retainer Slots
Edge Fits Over Raceway
Remove Screws
Front Panel
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 floor. Placing shims
at other locations will cause uneven
distribution of weight leading to piping
leaks, as well as sagging or wracked
doors.
Reach-In
P/N 0387183_D 1-3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
5-Door Island Shown
Bottom Front
Support
Skid/External Base
Electrical Wireway
Electrical Wireway
Shim
Here NO SHIM
HERE
Base Component
Shim Here Shim Here
Rear of Reach-in
Approximately
Centered
Base
Component
DOOR ADJUSTMENT
After leveling and joining the merchandisers,
adjust and level doors according to manufacturer’s
instructions shipped with each product. Factory
settings are 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 like fixtures, a joining kit is required.
To join unlike fixtures, or like fixtures operating
at different temperatures, a 11/2inch (38 mm)
partition kit is required. To join same
temperature fixtures on different defrost cycles,
a plexiglass partition kit is required.
ALL JOINTS MUST BE AIR-TIGHT TO PREVENT
FORMATION OF ICE OR CONDENSATION.
Refer to separate joining instruction shipped
with each case
INSTALLING SPLASHGUARD BRACKETS
1. Attach splashguard retainer and splashguard
retainer support to splashguard support brack-
et using two screws per bracket.
2. INSTALL SPLASHGUARD SUPPORT BRACKETS
BEFORE PIPING CASE.The leveling brackets
have a maximum extension of one (1) inch
(25 mm) for uneven floors.
DO NOT PLACE SHIMS UNDER SPLASHGUARD
BRACKETS.
1-4 INSTALLATION
P/N 0387183_D WWW.HUSSMANN.COM
Splashguard Retainer
Splashguard
Retainer Support
Splashguard
Support Bracket
Screw
Base Rail
Screw
Bumper Retainer
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 line-
up. 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 fine-tooth saw to cut last bumper to length.
Install the last section.
Reach-In
P/N 0387183_D 1-5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
Miter Box
Bumper
Merchandiser
Joint
Full Length
Bumpers
Starter
Bumper
Merchandiser
Joint
Internal Joint
Trims
Remove protective film from bumpers once
installation is complete.
Optional end bumpers are factory-installed.
1-6 INSTALLATION
P/N 0387183_D WWW.HUSSMANN.COM
Reach-In
REFRIGERANT
The correct type of refrigerant will be stamped on
each merchandiser’s serial plate which is located
on the left-hand end of the interior top liner.
REFRIGERANT PIPING
Connection Location
The refrigerant line connections are at the right-
hand end of the merchandiser (as viewed from
the front) beneath the display pans.
After connections have been made, seal this out-
let thoroughly. Seal both the inside and the out-
side. We recommend using an expanding
polyurethane foam insulation.
Multiplexing
Piping of merchandisers operating on the same
refrigeration system may be run from merchan-
diser to merchandiser through the end frame
saddles provided for this purpose. DONOT RUN
REFRIGERANT LINES THROUGH MERCHANDISERS
THAT ARE NOT ON THE SAME REFRIGERATION
SYSTEM as this may result in poor refrigeration
control and compressor failure.
NOTE: If Gas defrost is used, the liquid line
will need to be increased two sizes larger inside
the merchandiser area. This is necessary to ensure
even liquid drainage from all evaporators during
defrost.
Line Sizing
Refrigerant lines should be sized as shown on the
refrigeration legend that is furnished for the store
or according to ASHRAE guidelines.
Oil Traps
P-traps (oil traps) must be installed at the base of
all suction line vertical risers.
Pressure Drop
Pressure drop can rob the system of capacity. To
keep the pressure drop to a minimum, keep the
refrigerant line run as short as possible using a
minimum number of elbows. Where elbows are
required, USE LONG RADIUS ELBOWS ONLY.
INSULATION
With GAS Defrost
The suction and liquid lines should NOT contact
each other and should be insulated separately
for a minimum of 30 ft (9144 mm) from the
merchandiser.
With OTHER Than Gas Defrost
The suction and liquid lines should be clamped or
taped together and insulated for a minimum of
30 ft (9144 mm) from the merchandiser.
With All Defrost
Additional insulation for the balance of the liquid
and suction lines is recommended wherever
condensation drippage is objectionable or the
lines are exposed to ambient conditions.
P/N 0387183_D 2-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
REFRIGERATION / ELECTRICAL
When brazing pipes be sure to use the
insulation blanket shipped with the
merchandiser to prevent damage to
the plastic case bottom.
CAUTION
!
Refrigeration lines are under pressure and
should be depressurized before attempting
to make any connections.
WARNING
!
BRANCH LINE PIPING
Suction Line – All Defrosts
Pitch in direction of flow.
May be reduced by one size at one third of case
run load and again after the second third. Do
NOT reduce below evaporator connection size.
Suction returns from evaporators enter at the
top of the branch line.
Liquid Line – Off-time and Electric Defrost
May be reduced by one size after one half the
case load run. Do not reduce below evaporator
connection size.
Take-offs to evaporators exit the bottom of the
liquid line. Provide an expansion loop for each
evaporator take-off (minimum 3 in. (76 mm)
diameter).
Liquid Line – Koolgas Defrost
Maximum of 6 evaporators per Branch System.
Increase the liquid line size inside the case by
two sizes over the branch size.
Branch Size In Case Size
1/27/8
5/811/8
7/813/8
11/81
5/8
13/821/8
Take-offs to evaporators exit the bottom of the
liquid line. Provide an expansion loop for each
evaporator take-off (minimum 3 in. (76 mm)
diameter).
2-2 REFRIGERATION / ELECTRICAL
P/N 0387183_D WWW.HUSSMANN.COM
3-In. Loop (76 mm)
Suction Line Return
Liquid Line Take Off
From
Liquid
Manifold
To
Suction
Manifold
Electric or Offtime Defrost Liquid Line
Koolgas Defrost Liquid Line Two Sizes Larger in Merchandiser
The following information is applicable only
for piping Hussmann merchandisers to
Hussmann refrigeration equipment.
CAUTION
!
Reach-In
EXPANSION VALVE ADJUSTMENT
Expansion valves must be adjusted to fully feed
the evaporator. Before attempting to adjust
valves, make sure the evaporator is either clear or
only lightly covered with frost, and that the
merchandiser is within 10 deg F (6.5 deg C) of
its expected operating temperature. Adjust valves
as follows:
Attach two sensing probes
(either thermocouple or
thermistor) to the evaporator.
Position one under the clamp
holding the expansion valve
bulb; securely tape the other
to the coil inlet line.
Some “hunting
of the
expansion valve is normal.
The valve should be adjusted
so that during the hunting
THE GREATEST DIFFERENCE
BETWEEN THE TWO PROBES IS
3–5 deg F (1.7–2.8 deg C).
With this adjustment, during
a portion of the hunting the
temperature difference
between the probes will be
less than 3 deg F (1.7 deg C)
and at times 0.
Make adjustments of no more
than 1/4turn for Balanced
Port TEV and 1/2turn at a
time for other valve models.
Wait at least 15 minutes
before rechecking the probe
temperature or making further
adjustments.
REFRIGERATION THERMOSTAT
The thermostat body is located in the electrical
raceway near the right-hand end of the merchan-
diser. Its sensing bulb is located behind the right
end interior back panel.
P/N 0387183_D 2-3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
Heat
Exchanger
body
Expansion
Valve
Expansion Valve
Bulb
Check Valve
Optional
Gas Bypass
Manifold Thermostat
Component Location in
RL / RM / RLN / RLNI Models
2-4 REFRIGERATION / ELECTRICAL
P/N 0387183_D WWW.HUSSMANN.COM
Component Location in RLT Models
RLT Coil
Heat Exchanger
Assembly
Check Valve
Distributor
Assembly
TEV Bulb
Mounted
on Side of
Suction Tube
TEV
Optional
Gas Bypass
DEFROST TERMINATION THERMOSTAT
The standard disc type defrost termination ther-
mostat is not adjustable.
On low-temperature merchandisers, the defrost
termination thermostat or optional termination
sensor is located on the right end of the coil at
the bottom center return bend. If an optional
adjustable thermostat is used, the bulb will be
clamped to the suction line on the left end of the
case.
ELECTRIC
ELECTRIC DEFROST ONLY
Defrost Termination
Thermostat Location
2 Door
RL
RLN
RLNI
RLNIE
3 Door
RL
RLN
RLNI
RLNIE
5 Door
&
4 Door
RL
RLN
RLNI
RLNIE
Reach-In
P/N 0387183_D 2-5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
.
RLT
CONTROL SETTINGS
MEDIUM TEMPERATURE
Conventional Single Compressor
Measure Discharge Air Temperature
at the center of the case
at the discharge honeycomb.
Merchandiser temperature must be controlled by
a thermostat or other device with a 3–6 deg F
(1.7–3.3 deg C) differential. It will be wired to
control the compressor motor contactor.
Standard Off Time defrost is temperature termi-
nated. The defrost termination thermostats for all
the merchandisers on one compressor are wired
in series. On outdoor units the defrost timer will
control a liquid line solenoid beginning a defrost
pumpdown 4 minutes before defrost.
The defrost frequency and lengths listed may
require adjustment for specific store conditions.
Factors include:
Store temperature and humidity
Low head pressure
Long refrigerant line runs
Seasonal changes
Merchandiser temperature lower than
recommended
When practical, defrost when store is closed.
Low pressure control settings are applicable to
outdoor condensing units where ambient does not
fall below 0 deg F.
CONTROL SETTINGS
LOW TEMPERATURE
Conventional Single Compressor
Measure Discharge Air Temperature
at the center of the case
at the discharge honeycomb.
Merchandiser temperature must be controlled by
a thermostat or other device with a 3–6 deg F
(1.7–3.3 deg C) differential. It will be wired to
control the compressor motor contactor.
Standard Electric defrost is temperature terminat-
ed. The defrost termination thermostats for all
the merchandisers on one compressor are wired
in series. Failsafe must not control defrost cycle
length, especially when less than 208V power
supply is used for defrost heaters, or if frost
build up is heavy from shopping demands.
On outdoor units the defrost timer will control a
liquid line solenoid beginning a defrost pump-
down 4 minutes before defrost.
Optional Gas defrost is time terminated and has
fan cycling thermostat. The defrost frequency and
lengths listed may require adjustment for specific
store conditions. Factors include:
Store temperature and humidity
Low head pressure
Long refrigerant line runs
Seasonal changes
Merchandiser temperature lower than
recommended
When practical, defrost when store is closed.
Low pressure control settings are applicable to
outdoor condensing units where ambient does not
fall below 0 deg F.
2-6 REFRIGERATION / ELECTRICAL
P/N 0387183_D WWW.HUSSMANN.COM
Reach-In
CONTROL SETTINGS
MEDIUM TEMPERATURE
Parallel Compressor Rack
Measure Discharge Air Temperature
at the center of the case
at the discharge honeycomb.
Merchandiser temperature must be controlled by
a mechanical or electronic pressure regulator or
thermostat that will be mounted on the rack.
Standard Off Time defrost is temperature termi-
nated. The defrost frequency and lengths listed
may require adjustment for specific store condi-
tions. Factors include:
Store temperature and humidity
Low head pressure
Long refrigerant line runs
Seasonal changes
Merchandiser temperature lower than
recommended
Stagger defrosts to maintain stable compressor
loading and sufficient defrost gas. When practi-
cal, defrost when store is closed.
CONTROL SETTINGS
LOW TEMPERATURE
Parallel Compressor Rack
Measure Discharge Air Temperature
at the center of the case
at the discharge honeycomb.
Merchandiser temperature must be controlled by
a mechanical or electronic pressure regulator or
thermostat that will be mounted on the rack.
Standard Electric defrost is temperature terminat-
ed. Failsafe must not control defrost cycle length,
especially when less than 208V power supply is
used for defrost heaters, or if frost build up is
heavy from shopping demands.
Optional Gas defrost is time terminated and has
fan cycling thermostat. The defrost frequency and
lengths listed may require adjustment for specific
store conditions. Factors include:
Store temperature and humidity
Low head pressure
Long refrigerant line runs
Seasonal changes
Merchandiser temperature lower
than recommended
Stagger defrosts to maintain stable compressor
loading and sufficient defrost gas. When practi-
cal, defrost when store is closed.
P/N 0387183_D 2-7
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
MERCHANDISER ELECTRICAL DATA
Merchandiser data sheets for specific models are
shipped with this manual. The data sheets provide
merchandiser electrical data, standard electrical
schematics, parts lists and performance data.
Refer to the merchandiser data sheets and case
serial plate for electrical information. Refer to
the separate wiring diagrams shipped with the
case for specific information about the case and
any optional wiring kits that may have been
applied.
FIELD WIRING
Field wiring must be sized for component amperes
stamped on the serial plate. Actual ampere draw
may be less than specified. Field wiring from the
refrigeration control panel to the merchandisers is
required for defrost termination thermostats and for
optional refrigeration thermostats. When multiple
merchandisers are on the same defrost circuit, the
defrost termination thermostats are wired in series.
ALWAYS CHECK THE SERIAL PLATE FOR
COMPONENT AMPERES.
Electric Defrost is standard for low temperature
merchandisers and requires temperature termina-
tion. Gas defrost is optional
Off Time Defrost is standard for medium temper-
ature merchandisers and is time terminated.
When two or more merchandisers with full length
raceways are installed in line, remove the splash-
guards, end caps and raceway covers, and install
the nipple and nuts (supplied) providing electrical
passage from one merchandiser to the next.
Following NEC and local codes is the
responsibility of the electrical contractor.
ELECTRICAL CONNECTIONS
All wiring must be in compliance with NEC and
local codes. All electrical connections are to be
made to the terminal blocks in the electrical race-
way behind the lower front panel at the right-
hand end of the merchandiser (facing front).
IDENTIFICATION OF WIRING
Leads for all electrical circuits are identified by
colored plastic bands. These bands correspond to
the color code sticker (shown below) located
inside the merchandiser raceway.
2-8 REFRIGERATION / ELECTRICAL
P/N 0387183_D WWW.HUSSMANN.COM
WIRING COLOR CODE
Leads for all electrical circuits are identified by a colored plastic band: neutral wire for each
circuit has either White insulation or a White plastic sleeve in addition to the color band.
PINK ............REFRIG.THERMOSTAT LOW TEMP.ORANGE OR
LIGHT BLUE .REFRIG.THERMOSTAT NORM TEMP.TAN ..........LIGHTS
DARK BLUE..DEFROST TERM.THERMOSTAT MAROON ..RECEPTACLES
PURPLE .......ANTI-SWEAT HEATERS YELLOW*..DEFROST HEATERS, 120V
BROWN ........FAN MOTORS RED*........DEFROST HEATERS, 208V
GREEN* .......GROUND
*EITHER COLORED SLEEVE ORCOLORED INSULATION
ELECTRICIAN NOTE: Use copper conductor wire only.
CASE MUST BE GROUNDED
Terminal block NOT for case-to-case wire
connection.
WARNING
!
WASTE OUTLET AND WATER SEAL
The waste outlet location varies for each of the 1,
2, 3, 4, and 5 door merchandisers. Drip piping is
located between the front case base and the
splashguard fixture and runs parallel to the case
(see Data Sheet for exact locations).
INSTALLING DRIP PIPING
Poorly or improperly installed drip pipes can
seriously interfere with the merchandiser's opera-
tion and result in costly maintenance and product
losses. Please follow the recommendations listed
below when installing drip pipes to ensure proper
installation.
1. Never use drip piping smaller than the nomi-
nal diameter of the pipe or water seal sup-
plied with the merchandiser.
2. When connecting drip piping, the water seal
must be used as part of the drip piping to pre-
vent air leakage or insect entrance. Never use
two water seals in series in any one drip pipe.
DOUBLE WATER SEALS IN SERIES WILL CAUSE
AN AIR LOCK AND PREVENT DRAINING.
3. Pitch the drip piping in the direction of flow.
There should be a minimum pitch of 1/8inch
per foot (1 mm per 100 mm).
4. Avoid long runs of drip piping. Long runs
make it impossible to provide the pitch neces-
sary for good drainage.
5. Provide a suitable air break between
flood rim of the floor drain and outlet
of drip pipe. To meet code on low base
merchandisers, it may be necessary
to install a field-supplied drip pipe
reducer. An alternative is to cut the
last section of drip pipe at an angle.
6. Prevent drip pipes from 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 freezing.
Reach-In
P/N 0387183_D 3-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
DRIP PIPING AND SPLASHGUARDS
TEE-SIDE
Field Installed
Drip Piping
Field-Installed
Coupling
Field-Installed
Water Seal
Waste Outlet
Adapter
Tee
Fitting
Plug
Case Bottom
This End MUST Be
Above Tee Fitting
Splashguard
brackets
MUST be installed
before piping case.
(See Page 1-3)
CAUTION
!
INSTALLING SPLASHGUARDS
The splashguard is shipped inside each mer-
chandiser. AFTER merchandisers have been lev-
eled and joined, and all drip piping, electrical
and refrigeration work has been completed,
re-install the front color panel, then install the
splashguards.
First, position top of splashguard over the top
edge of the bracket; second, push the lower edge
of the splashguard toward the bottom of the
bracket until it snaps into place.
Splashguards are joined with a galvanized
metal splice connector that comes with the
joint kit. Join the splashguards before
installing on case.
3-2 DRIP PIPING AND SPLASHGUARDS
P/N 0387183_D WWW.HUSSMANN.COM
1
2
Splashguard
Retaining
Bracket
Splashguard
Joint
Side
Detail
Splice Connector
Splashguard
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 and 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 neces-
sary. This is to ensure a good and secure installa-
tion.
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.
Reach-In
P/N 0387183_D 3-3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
Silicone-type
Sealer
Splashguard
Splashguard
Cove Trim
Cement
NOTES
3-4 DRIP PIPING AND SPLASHGUARDS
P/N 0387183_D WWW.HUSSMANN.COM
P/N 0387183_D 4-1
STARTUP
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.
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 REMAIN
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.
LOAD LIMITS
Shelf life of perishables will be short if load limit
is violated. AT NO TIME SHOULD MERCHANDISERS
BE STOCKED BEYOND THE LOAD LIMITS INDICATED.
DO NOT BLOCK HONEYCOMB.
LOAD LIMIT PROFILES
Reach-In
HUSSMANN CORPORATION, BRIDGETON, MO 63044-2483 U.S.A.
START UP / OPERATION
RL / RM / RMF
FAN COIL
INSTALLING FDA/NSF REQUIRED
THERMOMETER
The following pages provide the same
information that ships with the thermometer.
This requirement does not apply to display
refrigerators intended for bulk produce (refer
to page 1-1).
Please note that the tape cannot be exposed after
installation.
4-2 START UP / OPERATION
P/N 0387183_D WWW.HUSSMANN.COM
RLNI
Load
Limits
RLNI
Load
Limits
FAN COIL
FAN
COIL
RLN
or
RMN
Load
Limits
FAN COIL
FAN
C
O
I
L
RLT
Load
Limits
Reach-In
P/N 0387183_D 4-3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
This is an NSF-7 &
US FDA Food Code
Required
Thermometer
End Panel
Suggested Mounting Locations
in Multi-deck Merchandisers
Price Tag
Molding
Suggested Mounting Locations
in Single Deck Glass Front
Impact Merchandisers
Package Guard,
Facing Out
Hussmann P/N 0429971_C 10/2007
Double Stick Tape
Flexible Plastic
Fits in Price Tag
Moldings
Hussmann Corporation • 12999 St. Charles Rock Road • Bridgeton, MO 63044-2483
U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • www.hussmann.com
© 2007 Hussmann Corporation
Thermometer — Hussmann Part TM.4911251
4-4 START UP / OPERATION
P/N 0387183_D WWW.HUSSMANN.COM
Each installation will be different
depending on how the unit is
stocked, shopping patterns in the
department and ambient conditions
of the store. The suggested loca-
tions provided herein are possible
locations. It is the responsibility of
the purchaser / user to determine
the location within the food storage
area of the unit that best meets the
code requirements above.
The thermometer may need to be
moved several times to find the
warmest location. Mounting options
include flexible plastic for price tag
molding application, magnet
applied to back of flexible plastic for
steel end wall, and double stick
tape. Tape must not be exposed
after installation.
Questions about either code should
be addressed to local agencies or
other appropriate officials.
Important – Please read!
Keep with merchandiser
or give to store manager.
DO NOT DESTROY.
This thermometer is provided in response to United States
Food and Drug Administration (US FDA) Food Code [ http://www.fda.gov/ ]
and
National Sanitation Foundation (NSF / ANSI) Standard 7 [ http://www.nsf.org/ ]
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 mini-
mum maintenance costs, these merchandisers
should be thoroughly cleaned, all debris removed
and the interiors washed down, weekly.
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.
Exterior Surfaces
The exterior surfaces should be cleaned with a
mild detergent and warm water to protect and
maintain their attractive finish. NEVER USE
ABRASIVE CLEANSERS OR SCOURING PADS.
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.
Interior Surfaces
The interior surfaces may be cleaned with most
domestic detergents, ammonia based cleaners and
sanitizing solutions with no harm to the surface.
DONOT USE:
Abrasive cleansers and scouring pads, as
these will mar the finish.
Solvent, oil or acidic based cleaners on any
interior surfaces.
Ammonia based cleaners on acrylic surfaces.
DO:
Remove the product and all loose debris to
avoid clogging the waste outlet.
Store product in a refrigerated area such as a
freezer. Remove only as much product as can
be taken to the freezer in a timely manner.
First turn off refrigeration, then disconnect
electrical power.
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 PERFOR-
MANCE.
Remove screws and lift hinged fan plenum
for cleaning. BE SURE TO REPOSITION THE FAN
PLENUM AFTER CLEANING MERCHANDISER.
Take care to minimize direct contact between
fan motors and cleaning or rinse water.
Rinse with hot water, but do NOT flood.
NEVER INTRODUCE WATER FASTER THAN THE
WASTE OUTLET CAN REMOVE IT.
Allow merchandisers to dry before resuming
operation.
After cleaning is completed, turn on power
and refrigerant to the merchandiser.
Verify that merchandiser is working properly.
Reach-In
P/N 0501904_A 5-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
MAINTENANCE
Do NOT use HOT water on COLD glass surfaces.
This can cause the glass to shatter and could
result in personal injury. Allow glass fronts,
ends and service doors to warm
before applying hot water.
WARNING
!
SHUT FANS OFF DURING CLEANING
PROCESS.
WARNING
!
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 UNDER MERCHANDISERS
Remove splashguards not sealed to floor. Use a
vacuum with a long wand attachment to remove
accumulated dust and debris from under the
merchandiser.
REMOVING SCRATCHES FROM BUMPER
Most scratches and dings can be removed using
the following procedure.
1. Use steel wool to smooth out the surface area
of the bumper or top rail.
2. Clean area.
3. Apply vinyl or car wax and polish surface for
a smooth glossy finish.
5-2 MAINTENANCE
P/N 0387183_D WWW.HUSSMANN.COM
Honeycomb
Retainer
Top Panel
Interior
Top Panel
Screw
SIDE VIEW
Internal
Frame
Honeycomb
Adhesive
Do NOT allow product to sit in a
non-refrigerated area.
WARNING
!
REPLACING FAN MOTORS AND BLADES
See cross section for location of evaporator
fans. Should it ever be necessary to service or
replace the fan motors or blades be certain that
the fan blades are re-installed correctly.
For access to RL / RM / RLN / RMN / RLNI /
RLNIE fans:
1. Turn off power.
2. Remove bottom display pans.
3. Disconnect fan from wiring harness.
4. Remove fan blade.
5. Remove screws holding fan motor/bracket
assembly to plenum and remove assembly.
6. Replace fan motor/bracket assembly and
reinstall screws.
7. Reinstall fan blade.
8. Reconnect fan to wiring harness.
9. Turn on power.
10. Verify that motor is working and blade is
turning in the correct direction.
11. Close air gaps under fan plenum. Warmer air
moving into refrigerated air reduces effective
cooling. If the plenum does not rest against
the case bottom without gaps, apply foam
tape to the bottom of the fan plenum to
reduce improper air movement. Use silicone
sealant to close other gaps.
12. Replace display pans. Bring merchandiser to
operating temperature before restocking.
Reach-In
P/N 0387183_D 6-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
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.
WARNING
!
SERVICE
Airflow
Direction
S
er
vi c e
# MO.XXXXXXX
XX XXXXX
Screws
Plenum
Fan Assembly
Fan Blade
Motor
Bracket
Speed-Nut
Hussmann recommends against frame heater
cycling with
Innovator
doors to prevent door
seals from freezing to the frames and tearing.
RLT ONLY
For access to these fans:
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.
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.
6-2 SERVICE
P/N 0387183_D WWW.HUSSMANN.COM
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.
WARNING
!
Gasket
Fan Blade
Nut
Motor
Lock Nut
Tool
Screws
Motor
Bracket
Tape
REPLACING ELECTRIC DEFROST
HEATERS (RL / RLN / RLNI / RLNIE
Only)
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.
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.
Reach-In
P/N 0387183_D 6-3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
Bend Tabs
on Each
Bracket
to Release
or Secure
Heaters
Electric Defrost
REPLACING ELECTRIC DEFROST
HEATERS (RLT Only)
RLT electric defrost heaters are located under
the coil as shown in the photo below. Mounting
brackets and supports are attached to plenum
brackets.
1. Disconnect Power.
2. Remove lower back panels to access the
heater.
3. Lift fan plenum up and back to access the
heater.
4. Remove heater from bracket.
5. Position new heater in bracket.
6. Close the bracket with the element support
7. Turn on power.
8. Verify that heater is working correctly.
6-4 SERVICE
P/N 0387183_D WWW.HUSSMANN.COM
Defrost Heater
Heating Element Support
LH Plenum Mounting Bracket
RH Plenum Mounting Bracket
Heating Element Support
This view shows one bracket assembly, typical on 2-door case;
two assemblies are used on 3-door case,
three on 4-door, four on 5-door case.
RLT Defrost Heater
RLT Defrost Heater Location
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.
Reach-In
P/N 0387183_D 6-5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
Drain Heater
Sealer
Screw
Jiffy Clip
Detail
Drain Heater Offset
Jiffy Clip
Drain
Heater
Sealer Screw
Jiffy Clip
Side View
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.
WARNING
!
RLT with GAS DEFROST ONLY:
REPLACING SECONDARY PLATE
HEATER
The secondary plate heater is located as
shown below.
Remove Secondary Plate Heater
1. Disconnect power.
2. Pull heater out from under jiffy clips.
3. Position new heater under jiffy clips. Be sure
offset is properly positioned around the
drain. If jiffy clips are removed, make cer-
tain sealer is replaced.
4. Reconnect power.
5. Verify that heater is working correctly.
6-6 SERVICE
P/N 0387183_D WWW.HUSSMANN.COM
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.
WARNING
!
Rear Secondary
Plate and Heater
Front
Secondary
Plate and
Heater
Interlock
Plates
Together
Strap together
and Attach to
Harness
Slide Rod Heater
Under Tabs.
Lightly Press
Down on Tabs.
REPLACING LAMP BALLAST
(OTHER THAN RLT MODELS)
The lamp ballasts are located in the electrical
raceway, in the left-hand end of the merchandiser.
To gain access:
1. Disconnect the electrical power to the light
fixture.
2. Remove the front panel.
A. Pull off the bumper.
B. Remove screws from bumper retainer.
NOTE: The front panel is attached by
(2) screws (two-door),
(3) screws (three -door),
(4) screws (four-door),
(5) screws (five door), to the front panel
C. Lift the front panel up and out from the
front of the case. Tabs on front panel must
clear slots on bumper retainer.
3. Service or replace ballasts as required.
4. Reinstall front panel by sliding it into bumper
retainer slots, then reinstall screws.
5. Install bumper.
6. Restore power to merchandiser.
Reach-In
P/N 0387183_D 6-7
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
Bumper
Lift-up on
Front
Panel
Screws
Raceway
Area
Ballas
Bumper
Retainer
Ballasts
REPLACING RLT LAMP BALLAST
The lamp ballasts are located in the electrical
raceway, in the left-hand end of the merchandiser.
To gain access:
1. Disconnect the electrical power to the light
fixture.
2. Remove the front panel. Lift the front panel
up and out from the front of the case.
3. Service or replace ballasts as required.
4. Reinstall front panel
5. Restore power to merchandiser.
6-8 SERVICE
P/N 0387183_D WWW.HUSSMANN.COM
RLT Wiring Routed Up Through Top Panel to
Wireway on Top
Wireway
Ballast
Tray
Wireway Cover
Top Foam
Assembly
Door Frame
Assembly
Field
Connection
Knock-outs
Fan and Heater Wiring
Routed Through Top Foam Assembly
Door Frame and Door Heater
Wiring Routed Through
Ballast Tray into Wireway
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.
WARNING
!
Hussmann recommends against frame heater
cycling with
Innovator
doors to prevent door
seals from freezing to the frames and tearing.
SERVICING VERTICAL LIGHTING
Refer to door manufacturer’s manual for servic-
ing of vertical lamps.
SERVICING DOORS AND FRAMES
See door manufacturer’s service manual for
servicing information. One manual is shipped
with each merchandiser.
REPLACING DOOR OR DOOR FRAME PARTS
Parts for Reach-in doors and door frame
assemblies must be ordered direct from the door
manufacturer This includes the glass doors, door
frame assemblies, lamps, ballasts, door handles,
hold open slides, and power cords.
Refer to specific warranty supplied with the
door. The manufacturers have a warranty
against moisture penetration, a warranty against
tempered glass breakage, and a warranty on
ballasts. Lamps are not covered by Hussmann
or the door manufacturer.
REPLACING DAMAGED DRAIN FITTING
The following procedure is for the field repair of
a broken drain fitting.
1. Use a drill with a 17/8-inch (48 mm) hole saw
to drill out the bottom of the drain fitting. Be sure
to drill completely through fitting and bottom
liner.
2. Apply teflon tape to threaded end of adapter
and screw into threaded end of tee.
3. Apply an ABS and PVC compatible primer
and sealer to adapter and inside of drain. Insert
adapter into drain fitting.
Reach-In
P/N 0387183_D 6-9
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
Drain Fitting Viewed from Inside Case
End Section View
Foam Bottom
Assembly
Modified
Drain Fitting
PVC Adapter
11/2 x 11/4 in.
(38 x 32 mm)
(obtained at local
building supply store)
Tee
11/4in. TxSxS
(32 mm)
REPAIRING ALUMINUM COIL
The aluminum coils used in Hussmann merchan-
disers may be easily repaired in the field.
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
NOTE:
Hussmann Aluminum melts at 1125°F (607°C)
Aladdin 3-in-1 rod at 732°F (389°C)
X-Ergon Acid core at 455°F (235°C)
Technique:
1. Locate Leak.
2. REMOVE ALL PRESSURE.
3. Brush area UNDER HEAT.
4. Use PRESTOLITE TORCH ONLY.
Number 6 tip.
5. Maintain separate set of stainless steel
brushes and USE ONLY ON ALUMINUM.
6. Tin surface around area.
7. Brush tinned surface UNDER HEAT,
thoroughly filling the open pores around leak.
8. Repair leak. Let aluminum melt solder, NOT
the torch.
9. Don't repair for looks. Go for thickness.
10. Perform a leak check.
11. Wash with water.
12. Cover with a good flexible sealant.
6-10 SERVICE
P/N 0387183_D WWW.HUSSMANN.COM
®
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 July 2005

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