Rev.0707
Installation
& Operation
Manual
R3(CR3),R3HV(CR3HV) - M/F
Combination Service and Self service Meat /Fish case
with rear storage
R3(CR3),R3HV(CR3HV)-M/F
Combination Service and Self-service Meat /Fish case
with rear storage
INSTALLATION & OPERATION GUIDE
General Instructions
R3(CR3),R3HV(CR3HV)-M/F-0707
Table of Contents
General Instructions..................................................2
Cut & Plan Views .......................................................3
Installation .................................................................4
LEVELING ................................................................4
Level Minitop Hardware ...........................................6
Plumbing ....................................................................9
WASTE OUTLET AND P-TRAP ...............................9
Refrigeration ..............................................................9
THERMOSTAT (T-STAT) LOCATION .....................10
Electrical...................................................................11
Case Cleaning ..........................................................11
FRONT DECK PAN PLACEMENT ........................12
Caution:When reassembling the front self-service por-
tion of the case, assure proper installation of bottom
deck pan .............................................................12
NON-GLARE GLASS (Optional) ............................12
Plexiglas & Acrylic Care/Cleaning .........................12
Lamps .......................................................................13
REPLACING FLUORESCENT LAMPS ..................13
TIPS & TROUBLESHOOTING ...............................13
User Information .....................................................13
STOCKING .............................................................13
Glass Installation/Balancing.....................................6
Case Specifi cations ................................................14
Schematics...............................................................15
Appendices ..............................................................19
APPENDIX A. – Temperature Guidelines ..............19
APPENDIX B. – Application Recommendations ...19
APPENDIX C. – Field Recommendations - ..........20
APPENDIX D. – Recommendations to user .........21
Warranty ...................................................................21
http://hussmann.com/products/products.htm .........21
Parts Replacement Contact ....................................21
1-866-513-1069 ......................................................21
THIS BOOKLET CONTAINS INFORMATION ON:
R3-M : Refrigerated Service T op for Meat with Gravity
Coil and Refrig. Self-Service Front Case
R3-F : Refrigerated Service Top for Fish with Gravity
Coil and Refrig. Self-Service Front Case
CR3-M : Refrigerated Service Top for Meat with
Gravity Coil and Refrig. Self-Service Front Case
CR3-F : Refrigerated Service T op for Fish with Gravity
Coil and Refrig. Self-Service Front Case
SHIPPING DAMAGE
All equipment should be thoroughly examined for
shipping damage before and during unloading.
This equipment has been carefully inspected at our
factory and the carrier has assumed responsibility for
safe arrival. If damaged, either apparent or concealed,
claim must be made to the carrier.
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 claim forms.
CONCEALED LOSS OR DAMAGE
When loss or damage is not apparent until after
equipment is uncrated, a claim for concealed damage
is made. Make request in writing to carrier for
inspection within 15 days, and retain all packaging.
The carrier will supply inspection report and required
claim forms.
SHORTAGES
Check your shipment for any possible shortages of
material. If a shortage should exist and is found to be
the responsibility of Hussmann, notify Hussmann. If
such a shortage involves the carrier, notify the carrier
immediately, and request an inspection. Hussmann
will acknowledge shortages within ten days from
receipt of equipment.
HUSSMANN PRODUCT CONTROL
The serial number and shipping date of all equipment
has been recorded in Hussmann’s fi les for warranty
and replacement part purposes. All correspondence
pertaining to warranty or parts ordering must include
the serial number of each piece of equipment
involved, in order to provide the customer with the
correct parts.
Keep this booklet with the case at all times for future reference.
A publication of
Hussmann®
13770 Ramona Avenue • Chino, California 91710
(909) 628-8942 FAX
(909) 590-4910
(866) 603-2180
The Hussmann warranty is printed on the
back of this guide.
This equipment is to be installed
to comply with the applicable
NEC,Federal,State and Local
Plumbing and Construction
Code having jurisdiction.
2
Rev. 0707
/8"
5
/4"
3
19
12
3
"
4
/
10
"
2
/
1
23
28"
1/4"
Optional Dry,
Refrigerated
or no storage
19
3
/8"
3
26
/8"
16"
26 1/2"
8"
51
39
1/4"
R3-M
Service Meat Case with Straight Glass
Self Service Front
Gravity and Conduction Coil
Scale = 1/2”
10
3
/4"
Cut & Plan Views
18"
/8"
3
53
/8"
3
35
4"
"
8
/
3
24
16"
26
1/2"
/8"
5
/4"
3
19
12
8"
39
51
CR3-M
Service Meat Case with Curved Glass
Self Service Front
Gravity and Conduction Coil
Scale = 1/2”
1/4"
1/4"
10 3/4"
28"
Optional Dry,
Refrigerated
or no storage
19
3
/8"
26 3/8"
10
3/4"
18"
/8"
3
53
/8"
3
35
4"
5
"
8
/
19
"
2
/
1
23
16"
26 1/2"
/4"
3
12
8"
39 1/4"
51 1/4"
R3-F
Service Fish Case with Straight Glass
Self Service Front
Gravity Coil and Ice Pans
Scale = 1/2”
28"
Optional Dry,
Refrigerated
or no storage
19
3
/
8
"
26 3/8"
8"
1"
18"
"
8
/
3
53
"
8
/
3
35
4"
8" 8" *
C
ELEC.
STUB UP
AREA
12" X 12"
L
17"
CASE FRONT
8‘
8'-2"
(VARIABLE LENGTHS)
(*4’ case is 5”)
Drain
WATER. &
REFRIG.
MECHANICAL
. STUB UP
5
AREA
12" X 12"
"
8
/
3
24
16"
26
1/2"
/8"
/4"
3
19
12
8"
39
51
Service Fish Case with Curved Glass
Gravity Coil and Ice Pans
CR3-F
Self Service Front
Scale = 1/2”
8"
51"
5 1/2"
1"
1/4"
1/4"
26"
Optional Dry,
Refrigerated
or no storage
19
3
/8"
26 3/8"
18"
/8"
3
53
/8"
3
35
4"
R3-M CR3-M R3-F CR3-F
Service Cases with Self Service Front
Plan View
Scale = 1/4”
3
R3(CR3),R3HV(CR3HV)-M/F-0707
26 3/4"
Stainless Steel Ice Pan
8 9/16"
"
20 1/4
6"
12 5/8"
50"
CR3HV-F
High Volume Fish Case with Curved Glass,
Gravity Coil and Ice Pans
Scale = 1/2"
27 1/2"
18
3/4"
18 3/4"
53 1/4"
26 3/4"
Serpentine Coil
"
20 1/4
8 9/16"
12 5/8" 6"
50"
CR3HV-M
High Volume Meat Case with Curved Glass,
Gravity and Conduction Coil
Scale = 1/2"
27 1/2"
18 3/4"
53 1/4"
18 3/4"
26 3/4"
Stainless Steel Ice Pans
8 9/16"
"
20 1/4
6"
12 5/8"
50"
R3HV-F
High Volume Service - Fish Case with
Straight Glass, Gravity Coil and Ice Pans
Scale = 1/2"
53 1/4"
6"
12 5/8"
High Volume Meat Case with Straight Glass,
4"
4"
Elect
Drop
Available in 72", 96", 144"
C
L
Upper
9 5/8"
Drain
C
L
17 7/8"
FRONT OF CASE
R3HV CR3HV R3HV-F CR3HV-F
R3HV-M CR3HV-M
Service Cases with Self Service Front
Plan View
Scale = 1/4"
26 3/4"
Conduction Coil
20 1/4"
8 9/16"
50"
R3HV-M
Gravity and Conduction Coil
Scale = 1/2"
6"
22 1/8"
Refrig
Drop
1"1"
53 1/4"
4
Rev. 0707
Installation
IMPORTANT !: PLEASE READ THESE
INSTRUCTIONS COMPLETELY BEFORE
BEGINNING CASE INSTALLATION.
LOCATION
The refrigerated merchandisers have been designed
for use only in air conditioned stores where temperature
and humidity are maintained at or below 75°F and
55% relative humidity. DO NOT allow air conditioning,
electric fans, open doors or windows (etc.) to create
air currents around the merchandiser, as this will
impair its correct operation.
Product temperature should always be maintained
at a constant and 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 life of
the product.
UN-CRATING THE STAND
Place the fi xture as close to its permanent position
as possible. Remove the top of the crate. Detach
the walls from each other and remove from the skid.
Unbolt the case from the skid. The fi xture can now be
lifted off the crate skid. Lift only at base of stand!
EXTERIOR LOADING
These models have not been structurally designed to
support excessive external loading. Do not walk on
their tops; This could cause serious personal in jury
and damage to the fi xture.
LEVELING
IMPORTANT !: To avoid removing concrete
flooring, when installing a lineup of cases, it
is imperative that the highest spot of the store
floor in the area where the cases are to be set
is determined. Begin setting the lineup with
the case that is nearest to the highest part
of the floor. If a wedge is a part of the lineup
near the high spot, set it first.
IMPORTANT !: When removing loose parts
from inside or on top of the case such as
installation kits, hardware or fasteners, ice
pans, display pans, splash guards, and
instruction manuals to gain access to the side
bulkheads at each end of the case or to begin
preparation for installation: DO NOT LOSE
THEM or put them where they can become
damaged.
legs accordingly. Cases must be raised correctly: lift
under legs or wood leg braces where support is best,
to prevent damage to the case.
1. It is imperative that the cases be leveled from
front to back and side to side as they are being
joined beginning with the fi rst case that is set in
place. Remember: the fi rst case in a line-up to
be set should be the one closest to the highest
spot of the store fl oor. A level case is necessary
to ensure proper operation, water drainage, and
glass alignment. Remove any skids or shipping
supports that are under the legs. Leave the leg
supports attached to the sides of the legs on the
case until the case has been set and leveled.
Front to back plumb should be checked by
placing the level on the top of the side bulkhead
of the lower case after the lower deck pans have
been removed. Make sure that the area on the
bulkhead where the level is placed is smooth
and free of debris. Check plumb at both ends of
the case at the side bulkheads.
Side to side plumb should be checked both at
the front and rear of the case. At the front, a
level can be placed on the stainless steel liner
cap at the front of the lower case interior or on
the stainless steel bumper box between the
bumper and front Plexiglas. At the rear of the
case, place the level on the stainless steel rear
ledge. Check plumb at the center and ends to
ensure that the case is truly level and that all
legs of the case are supporting the weight of the
case equally, front and rear and side to side.
2. Set the fi rst case, and adjust the legs over the
highest part of the fl oor so that case is level as
described above. Prevent case damage: if lifting
the case, it must be raised under the legs, the
leg tubes or by the use of the wood 2" x 6 or
2" x 4" leg braces if applicable. Remove the side
and back leg braces after the case is set.
3. Set the second case as close as possible to the
fi rst case, and level the second case to the fi rst
using the instructions in step 1. This will be a
mock-up only. The fi nal leveling of the case will
be rechecked once they are bolted together in
steps 7 and 8.
LEVELING: All cases were leveled and joined
where necessary prior to shipment to ensure the
closest possible fi t when cases are joined in the
fi eld. When joining, use a carpenters level and shim
4. Apply masking tape 1/8" in from end of case
on the inside and outside rear mullion and to
the side bulkheads on both cases to be joined.
The tape will minimize cleanup from sealant
overfl ow when the cases are drawn together.
(It can also be left in place on the upper case
mullions and exterior bodywork for fi nish
caulking with silicone in step 9.)
55
Installation
5. Apply liberal beads of case joint sealant (butyl)
to the areas (solid dark lines) shown in the
diagram below (Fig.2, #1) of the fi rst case.
DO NOT USE PLUMBER'S PUTTY!
Fig.2, #1
DO NOT USE PLUMBER'S PUTTY!
R3(CR3),R3HV(CR3HV)-M/F-0707
step 1. If using clamps on the plastic sprayed
interior liner use scrap wood (as wide as
possible) under the clamps so that the liner is
not damaged. Be careful to observe the area
where the clamp is being tightened so that the
case is not damaged as pressure is applied.
8. Attach cases together via 2 bolts located in the
end leg tubes at the base of the cases and 1 bolt
in the rear raceway end brackets. On fi xed glass
Meat and Fish cases, there are 2 additional
bolts in the top of the case that are accessible
by removing the top insert. The top insert is
removed by pushing up on the bottom side of
the insert from inside of the case.
9. Remove the masking tape from the bulkheads
only and trial fi t the stainless steel bulkhead
caps. Once proper fi t is confi rmed, apply a bead
of silicone to the tops of the bulkheads and
install the stainless steel bulkhead cap. Also,
sparingly apply silicone to seal case interior and
exterior bodywork as needed to ensure a watertight seal, and a cleanable and professional
appearance. Use a fi nger in a clean rag, as you
go, to smooth the silicone as thin as possible on
the inside and outside of the case, while it is still
fl uid. (Apply additional silicone if necessary).
Immediately remove the masking tape applied
in step 3.
Plumber's putty will not allow the cases to be fully drawn
together which will cause gaps between the cases
resulting in poor bodywork fi t, fi nish and case sealing.
Only use Plumber's putty where necessary after the
cases have been bolted and drawn tightly together.
6. Slide the second case up to the fi rst case
snugly. Then align the second case to the fi rst
case so that the glass, front bumper, bodywork,
and top are fl ush.
7. To compress the sealant at the joints, use two
Jurgenson
®
or similar hand screw type wood
clamps. Make sure the case is level from front
to back and side to side per the instructions in
GLASS ADJUSTMENT
The top cylinders, which allow the raising and lowering
of the glass, have been carefully tested for proper
6
Rev. 0707
Glass Installation/Balancing
tension. However, during shipment, the lubricant
inside may have settled. This settling may cause
excessive or uneven tension on the glass - to the
point of breakage. Perform the three easy steps listed
below before completely raising the front glass.
1. Slowly raise and lower each glass section 6 times to a height of 6 inches.
2. Increase the height to 12 inches,
and raise and lower the glass 6 more
times.
3. Finally raise the glass to its full extension, and lower.
These steps should release any settled lubricant
within the cylinders and prevent any stress on the
front glass.
Additionally, after installing NEW cylinders, it is
advisable to perform these three easy steps before
completely raising the front glass.
of the glass.
1. Be sure mini top hardware is level front to back
by placing a level along the top of the mini top
housing at each hinge location. If it is not, you
will need a shim kit before you can correct.
Order from Hussmann.
2. Remove top glass and panel at top of hardware
housing.
3. Mark position of hardware (glass) in relation to
case before loosening hex screw using masking
tape applied on mini top hardware and case,
and pen. Hex screw allows realignment of glass
angle and position front to back.
4. Raise glass and loosen hex screw.
(See diagram on page 9.)
5. Shim to adjust until level using shims available
from Hussmann (16 or 20 gauge stainless
steel).
6. Check angle by using level placed on top of mini
top hardware. Note: a 6" level will fi t perfectly
within access area.
7. Tighten hex screw.
8. If there is still a problem with glass staying open
over-level by adding an addition shim under
front of case.
NOTE: Before making any of the recommended
adjustments, Verify that the case(s) have been leveled
properly.
IMPORTANT!
READ BEFORE RAISING FRONT GLASS ON
R3-M/F or CR3-M/F:
IMPORTANT!
READ BEFORE RAISING FRONT GLASS :
Hex screws along glass clamp may have loosened during
shipping!! Retighten all glass clamp screws before
opening glass!
Level Minitop Hardware
IF GLASS DOES NOT CLOSE/STAY OPEN PROPERLY-
Level MINI TOP HARDWARE
During shipping, it is possible that the mini top
hardware housing the pistons and armature has been
jostled out of position. This affects the opening angle
Strategies for correcting Glass bounce And
opening overlap problems
Adjust hinges FRONT – BACK.
Adjustments
Before calling for service if something seems
wrong, check the following:
7
R3(CR3),R3HV(CR3HV)-M/F-0707
g
Glass Installation/Balancing
1. Inspect the gap between the glass panels
A. If pinched at the top: Gap is more narrow at the top than at the bottom.
Correct UNEVEN GAP and opening overlap problems
by VERTICALLY adjusting the hinge(s) to even the gap
Adjust center hinge (Outer hinges stationary)
As this diagram indicates, raising the middle hinge
draws the bottom edges closer together.
Whereas lowering the hinge widens the gap.
(See Vertical Adjustment on page 9)
B. If pinched at the bottom: Gap is more narrow at the bottom than at the top.
Adjust outside hinges (Center hinge stationary) This diagram indicates that raising the outside hinges
widens the gap at the bottom; whereas, lowering the outside hinges will draw the bottom edges closer
together.
(See Vertical Adjustment on page 9)
Top edges of glass (hinge side)
Hinge
Hardware
es of glass
Botto m ed
Which hinge(s) should I adjust fi rst?
In most cases the center hinge is the fi rst candidate, but if it cannot be adjusted because, either the
adjustment screw is "maxed" out or no additional shims can be added or removed, then obviously the
outer hinges must be adjusted
2. Check closing action of the glass panel
Test each panel by gently pushing it to close.
Does the glass panel bounce or wobble as it closes?
A glass panel that does not close smoothly and neatly, most
likely is misaligned with the front edge of the glass and the
surface or edge which it closes upon. Refer to diagram at right.
3. Strategies for correcting Glass Bounce and opening overlap problems
Adjust hinges FRONT _ BACK.
A. Adjust center Hinge (Outer hinges stationary)
As this diagram indicates, pulling the middle hinge
further back, pulls the inside edges closer to the
surface or edge which the glass rests upon. And
pushing the middle hinge to the front, pushes the
8
Rev. 0707
Glass Installation/Balancing
inside edges further away from the surface or edge
which the glass rests upon.
(See Vertical Adjustment of Glass)
B. Adjust outside hinges (Center hinge stationary)
As this diagram indicates, pulling the outside hinge
further back, pulls the outside edge closer to the
surface or edge which the glass rests upon. And
pushing the middle hinge to the front, pushes the
inside edges further away from the surface or edge
which the glass rests upon.
Which hinge(s) should I adjust fi rst?
In most cases the center hinge is the fi rst candidate, but if the arm/minicam is at its maximum or
minimum position, then obviously the outer hinges must be used.
(See Vertical Adjustment of Glass)
Vertical Adjustment of Glass
A. Adjust outside hinges (Center hinge stationary) This diagram indicates that raising the outside hinges
widens the gap at the bottom; whereas, lowering the outside hinges will draw the bottom edges closer
together.
Which hinge(s) should I adjust fi rst?
In most cases the center hinge is the fi rst candidate, but if it cannot be adjusted because, either the
adjustment screw is "maxed" out or no additional shims can be added or removed, then obviously the
outer hinges must be adjusted
JOINT TRIM
After cases have been leveled and joined, and refrigeration, electrical, and waste piping work completed, install
the splashguards and joint trim where necessary. Fasten the splash guards along the top edge, or center, with
3/8" long sheet metal screws. If needed, use silicone sparingly to caulk the joint trim and exterior body panels
with an appropriate colored silicone to ensure that a cleanable and professional appearance is achieved. Use
a fi nger in a clean rag, as you go, to create smooth and neat joints, while the silicone is still fl uid.
Back of
Case
”
9
R3(CR3),R3HV(CR3HV)-M/F-0707
DO NOT SEAL JOINT TRIM OR
SPLASHGUARDS TO THE FLOOR!
Plumbing
as possible; 1/8" per foot is the pre ferred
minimum. PVC pipe, when used, must be supported to maintain the 1/8" pitch and to prevent
warping.
4. Avoid long runs of condensate drains. Long
runs make it impossible to provide the “fall”
necessary for good drainage.
5. Provide a suitable air break between the fl ood
rim of the fl oor drain and outlet of condensate
drain. 1" is ideal.
6. Prevent condensate drains from freezing:
a. Do not install condensate drains in contact
with non-insulated suction lines. Suction lines
s hould be insulated with a nonabsorbent
insulation material such as Armstrong’s
Armafl ex.
b. Where condensate drains are located in dead
air spaces (between refrigerators or between
a refrigerator and a wall), provide means to
prevent freezing. The water seal should be
insulated to prevent condensation.
Refrigeration
WASTE OUTLET AND P-TRAP
The waste outlet is located off the center of the case
on one side allowing drip piping to be run lengthwise
under the fi xture. There are 3 drains in each fi xture
that can be easily located.
1-1/2",1", & 3/4" P-traps and threaded adapters are
supplied with each fi xture. The 3 P-traps must be
installed to prevent air leakage and insect entrance
into the fi xture.
NOTE: PVC-DWV solvent cement is recommended.
Follow Hussmann’s instructions.
INSTALLING CONDENSATE DRAIN
Poorly or improperly installed condensate drains
can se riously interfere with the operation of this
re frigerator, and result in costly maintenance and
product losses. Please follow the recommendations
listed below when installing condensate drains to
insure a proper installation:
1. Never use pipe for condensate drains smaller
than the nominal diameter of the pipe or P-trap
supplied with the case.
2. When connecting condensate drains, the Ptrap must be used as part of the condensate
drain to prevent air leakage or insect entrance.
Store plumbing sys tem fl oor drains should be at
least 14" off the center of the case to allow use
of the P-trap pipe section. Never use two water
seals in series in any one line. Double P-traps in
series will cause a lock and prevent draining.
3. Always provide as much down hill slope (“fall”)
PIPING
The refrigerant line outlets are located under the
case. Locate fi rst the electrical box, the outlets are
then on the same side of the case but at the opposite
end. Insulate suction lines to prevent condensation
drippage.
REFRIGERATION LINES
LIQUID SUCTION
3/8" O.D. 5/8" O.D.
NOTE: The standard coil is piped at 5/8" (suction); however, the store
tie-in may vary depending on the number of coils and the draw
the case has. Depending on the case setup, the connecting
point in the store may be 5/8", 7/8", or 11/8". Refer to the particular
case you are hooking up.
Refrigerant lines should be sized as shown on the
refrigeration legend furnished by the store.
Install P-traps (oil traps) at the base of all suction line
vertical risers.
Pressure drop can rob the system of capacity. To keep
the pressure drop to a minimum, keep refrig erant
line run as short as possible, using the minimum
number of elbows. Where elbows are re quired, use
long radius elbows only.
10
Rev. 0707
Refrigeration
CONTROL SETTINGS
See the “Case Specs” section of this guidebook
for the appropriate settings for your merchandiser.
Maintain these parameters to achieve near constant
product temperatures. Product temperature should be
measured fi rst thing in the morning, after having been
refrigerated overnight. Defrost times should be as
follows: OFF CYCLE - Consult the Case Specifi cation
Section of this guide for defrost settings. The number
of defrosts per day and the duration of the defrost
cycle may be adjusted to meet conditions present at
your location.
ACCESS TO THERMOSTATIC EXPANSION
VALVE (TEX) & DRAIN LINES
MECHANICAL - Remove product from end of case.
Remove product racks. Remove refrigeration and
drain access panels (labeled). TEX valve (mechanical
only) and drain are located under each access panel
at end of the case.
ELECTRONIC - The Electronic Expansion valve
master and slave cylinder(s) are located within the
electrical access panel(s).
ELECTRONIC EXPANSION VALVE (EEV)
(OPTIONAL)
A wide variety of electronic expansion valves and case
controllers can be utilized. Please refer to EEV and
controller manufacturers information sheet. Sensors
for electronic expansion valves will be installed on the
coil inlet, coil outlet, and in the discharge air. (Some
supermarkets require a 4th sensor in the return
air). Case controllers will be located in the electrical
raceway or under the case.
observed suction pressure.
3. Measure the temperature of the suction gas at
the thermostatic remote bulb location.
4. Subtract the saturation temperature obtained
in step No. 2 from the temperature measured in
step No. 3. The difference is superheat.
5. Set the superheat for 5°F - 7°F.
EV APORATOR PRESSURE REGULATOR (EPR)
An Evaporator Pressure Regulator is installed in the
front of the self service section to maintain a constant
discharge temperature. It is located at the front right
side of the case, under the fan plenum near the TEX
Valve.
SERVICE CASE TEMPERA TURE CONTROL
Temperature control in the upper section of the
CR3 with the Service Option is done by means of a
thermostat and suction solenoid valve. This controls
both temperature and humidity.
THERMOSTAT (T-STAT) LOCATION
Thermostats are located within the electrical raceway.
Refer to diagram below. There are also labels on the
back of the case indicating T-Stat location(s).
T-Stat &
Ballast Are
Labeled as
Such
THERMOSTATIC EXPANSION VALVE
LOCATION
This device is located on the same side as the
refrigeration stub. A balanced port expansion valve
model is furnished as standard equipment, unless
otherwise specifi ed by customer.
EXPANSION VALVE ADJUSTMENT
Expansion valves must be adjusted to fully feed the
evaporator. Before attempting any adjustments,
make sure the evaporator is either clear or very lightly
covered with frost, and that the fi xture is within 10°F
of its expected operating temperature.
MEASURING THE OPERATING SUPERHEAT
1. Determine the suction pressure with an
accurate pressure gauge at the evaporator
outlet.
2. From a refrigerant pressure temperature chart,
determine the saturation temperature at the
Figure #3
Electrical
WIRING COLOR CODE
REFRIGERATED
11
R3(CR3),R3HV(CR3HV)-M/F-0707
CASE MUST BE GROUNDED
NOTE: Refer to label affi xed to case to determine the actual confi gura-
tion as checked in the “TYPE INSTALLED” boxes.
ELECTRICAL CIRCUIT IDENTIFICATION
Standard lighting for all refrigerated models will be
full length fl uorescent lamps located within the case
at the top.
The switch controlling the lights, the plug provid ed for
digital scale, and the thermometer are lo cated at the
rear of the case mullion.
The receptacle that is provided on the exterior back
of these models is intended for computerized scales
with a fi ve amp maximum load, not for large motors
or other high wattage appliances. It should be wired
to a dedicated circuit.
ELECTRICAL SERVICE RECEPTACLES
(When Applicable)
The receptacles located on the exterior of the
merchandiser are intended for scales and lighted
displays. They are not intended nor suitable for large
motors or other external appliances.
SHUT OFF FAN DURING CLEANING PROCESS. It
can be unplugged within the case, or shut off case
at the source. The interior bottom may be cleaned
with any domestic soap or detergent based cleaners.
Sanitizing solutions will not harm the interior bottom,
however, these solutions should always be used
according to the manufacturer’s directions.
It is essential to establish and regulate cleaning
procedures. This will minimize bacteria causing
discoloration which leads to degraded product
appearance and significantly shortening product
shelf life.
Soap and hot water are NOT enough to kill this
bacteria. A sanitizing solution MUST be included with
each cleaning process to eliminate this bacteria.
Remove all food stuffs, ice, debris, etc., and either
access the case from the rear or the front of the case.
Allow the case to come to room tenperature.
WHEN CLEANING,
DO NOT SPRAY GLASS!
FRONT AND BACK GLASS IS
NOT SEALED AND
CAUTION
Front glass is “Lift Up Glass” that is NOT SEALED
and back access doors ARE NOT SEALED
and WILL LEAK if sprayed with any liquid!
WILL LEAK!!!
FIELD WIRING & SERIAL PLATE AMPERAGE
Field Wiring must be sized for component amperes
printed on the serial plate. Actual ampere draw may be
less than specifi ed. Field wiring from the refrigeration
control panel to the merchandisers is required for
refrigeration thermostats. Most component amperes
are listed in the “Case Specs” section, but always
check the serial plate.
Ballasts are located within the access panel (Electrical
raceway) that runs the length of the rear of the case.
Refer to Figure 3 on page 10..
Case Cleaning
Long life and satisfactory performance of any
equipment are dependent upon the care given to it.
To insure long life, proper sanitation and minimum
maintenance costs, the refrigerator should be
thoroughly cleaned frequently.
Caution: if you access the case from the front,
be certain the glass is FULLY upright before
beginning the cleaning process.
1. Scrub thoroughly, cleaning all surfaces, with
soap and hot water.
2. Rinse with hot water, but DO NOT fl ood or spray
glass. (If you are working from the rear of the
case, the front glass is "lift up glass" and is NOT
sealed. IT WILL LEAK.) Keep all water within
the base of the case.
3. Apply the sanitizing solution according to the
manufacturer’s directions.
4. Rinse thoroughly.
5. Dry completely before resuming operation.
12
Rev. 0707
Case Cleaning continued
FRONT DECK PAN PLACEMENT
ATTENTION!
When reassembling the front self-service
portion of the case, assure proper
installation of bottom deck pan. If the deck
pan is NOT installed properly, the front
self service section will NOT maintain safe
product temperature.
In addition to cleaning the glass with the recommended
product, there are precautions that should be taken
when working and cleaning the inside of the case.
• When cleaning the inside of the cases, we
recommend that the glass be fully opened and
covered to prevent to prevent solutions from
splashing onto the glass and ruining the coating
on the inside.
* Only use a soft cloth and water (in a spray
bottle) for cleaning any glass or mirrored
components. Be sure to rinse and/or dry
completely.
• Never use hot water on cold glass surfaces!
It may shatter and cause serious injury!
Allow glass surfaces to warmed to room
temperature.
Plexiglas & Acrylic Care/Cleaning
PLEXIGLAS & ACRYLIC CARE
Improper cleaning not only accelerates the cleaning
cycle but also degrades the quality of this surface.
Normal daily buffi ng motions can generated static
cling attracting dust to the surface. Incorrect cleaning
agents or cleaning cloths can cause micro scratching
of the surface, causing the plastic to haze over
time.
NON-GLARE GLASS (Optional)
The high optical clarity of this glass is possible due
to special coatings on the glass surface itself. To
preserve this coating and the optical clarity, keep the
glass clean.
Water is the only solution recommended to be used
to clean the non-glare glass. The damage to the glass
from improper, caustic solutions is irreparable.
CLEANING
Hussmann recommends using a clean damp chamois,
or a paper towel marked as dust and abrasive free
with 210
®
Plastic Cleaner and Polish available by
calling Sumner Labs at 1-800-542-8656. Hard, rough
cloths or paper towels will scratch the acrylic and
should not be used.
ANTISTATIC COATINGS
The product 210
®
has proven to be very effective in
not only cleaning and polishing the Plexiglas surface,
but also providing antistatic and anti-fog capabilities.
This product also seals pores and provides a
protective coating.
13
R3(CR3),R3HV(CR3HV)-M/F-0707
Lamps
REPLACING FLUORESCENT LAMPS
Fluorescent lamps are furnished with a shatterproof
protective coating. The same type of lamp with
protective coating must be used if replaced.
for replacement call:
1-866-513-1069*
* Telephone expected to be on-line and in effect 9/1/05.
You may still obtain assistance at this number for Parts Replacement
EVAPORATOR FANS
The evaporator fans are located at the center front
of these merchandisers directly beneath the display
pans. Should fans or blades need servicing, always
replace fan blades with the raised embossed side of
the blade TOWARD THE MOTOR.
COPPER COILS
The copper coils used in Hussmann merchandisers
may be repaired in the fi eld. Materials are available
from local refrigeration wholesalers.
Hussmann recommends using #15 Sil-Fos for
repairs.
ALUMINUM COILS
The aluminum coils should be replaced if damaged.
TIPS & TROUBLESHOOTING
Before calling for service, check the
following:
1. Check electrical power supply to the equipment
for connection.
2. Check fi xture loading. Overstocking case will
affect its proper operation.
3. If frost is collecting on fi xture and/or product,
check that no outside doors or windows are
open—allowing moisture to enter store. These
merchandisers were designed for use in stores
were temperature & humidity does not exceed
75° F and 55% H.
4. If front self-service case is not performing check
proper installation of lower deck pan refer to
case cleaning section
User Information
STOCKING
Improper temperature and lighting will cause serious
product loss. Discoloration, dehydration and spoilage
can be controlled with proper use of the equipment
and handling of product. Product temperature should
always be maintained at a constant and 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 life of the product. Hussmann
cases were not designed to “heat up” or “cool down”
product—but rather to maintain an item’s proper
temperature for maximum shelf life. To achieve the
protection required always:
1. Minimize processing time to avoid damaging
temperature rise to the product. Product should
be at proper temperature.
2. Keep the air in and around the case area free
of foreign gasses and fumes or food will rapidly
deteriorate.
3. Maintain the display merchandisers
temperature controls as outlined in the
refrigerator section of this manual.
4. Do not place any product into these refrigerators
until all controls have been adjusted and they
are operating at the proper temperature. Allow
merchandiser to operate a minimum of 6 hours
before stocking with any product.
5. When stocking, never allow the product to
extend beyond the recommended load limit.
Air discharge and return air fl ue must be
unobstructed at all times to provide proper
refrigeration.
6. Keep the service doors closed (when
applicable). Refrigeration performance will be
seriously affected if left open for a prolonged
period of time.
7. Avoid the use of supplemental fl ood or spot
lighting. Display light intensity has been
designed for maximum visibility and product
life at the factory. The use of higher output
fl uorescent lamps (H.O. and V.H.O.), will
shorten the shelf life of the product.
FOR PROMPT SERVICE
When Contacting the Factory
regarding problems, Be sure
to have the Case MODEL and
SERIAL NUMBER Handy.
This Information is on a plate
located on the case itself.
14
Rev. 0707
Case Specifi cations
15
Case Specifi cations
r
g
(
)
f
V
g
r
r
T
R3(CR3),R3HV(CR3HV)-M/F-0707
DefrostsGlycol Specs
Min. Qty.
Motors (Qty.)
(°F) Pitch ( ° ) Fans Fans Fans
T~Stat Coil Type Fan Blade
FPM
Speed Settings Size (in) & Evap. A/S Hum.
40 4
40 4
40 4
4½" Axial 2
4½" Axial 2 1
4½" Axial 4
Forced Air
Forced Air
Forced Air
250 EPR
300 24°
250 EPR
40 4
40 4
40 4
4½" Axial 4 2
4½" Axial 4
4½" Axial 4 2
Forced Air
Forced Air
Forced Air
300 24°
250 EPR
300 24°
40 4
40 4
40 4
4½" Axial 6
4½" Axial 6 3
4½" Axial 6
Forced Air
Forced Air
Forced Air
250 EPR
300 24°
250 EPR
40 4
4½" Axial 6 3
Forced Air
300 24°
Ampacity
oltage
► Rear 4' Space taken by Cond. Unit
Set (PSI)
Fans Out In (HP) (VAC)
Std. Hum. Size
2 15.0
Flow Press Drop
Temperatures (°F) per dayBtu / Hr.
Refrigeration Average
(Ft.) (Total) Evap. Prod. Disch. GPM PSI
20° 36° 24°
20° 36° 24°
20° 36° 24°
20° 36° 24°
20° 36° 24°
20° 36° 24°
► Front and Top Blower Section - Dry Rear Storage
20° 36° 24°
20° 36° 24°
20° 36° 24°
20° 36° 24°
Lights Levels Outlet Fans Heate
Case Case Shel
Max. Electrical Load (Amps) @ ~115 VAC Condensing Unit Data
1.73
Evap.Fans Air Sweep
Eng. Eff. Std. Warme
are
Motors
Standard
Energy
5.60
Efficient
Specific
Specific Disch. Ai
Use
th
&
Model
Len
Top 565 Total
Front 650 14,580
8'
Top 565 Total
Front 650 12,150
10'
Top 565 Total
12'
Front 650 4,860
Top 565 Total
Front 650 7,290
Top 565 Total
Front 650 9,720
4'
6'
R3-HV & CR3-HV Blower Service Top
Use
&
Model
th
Len
Front 0.36 30 50 1/2 115 19.9
Top 0.48
Front 0.72 30 50 1 208 ~ 230 13.0
Top 0.96
Front 0.72 30 50 1 208 ~ 230 13.0
Top 0.96
Front 1.08 30 50 1-½ 208 ~ 230 19.0
Top 1.44
Front 1.08
Top 1.44
6' 2.24
4'
8' 3.36
10' 5.09
12'
R3-HV & CR3-HV Blower Service
16
Rev. 0707
Schematics
ELECTRICAL (MAX LOADS)
CASE OPTIONS
LIGHTS
ANTI-SWEAT HEATER
0.2 AMPS @ 115V
T-STA T/SOLENOID
1.3 AMPS @ 115V
0.95 AMPS @ 115V
LOWER FRONT SECTION
STORAGE
0.65 AMPS @ 115V
RJ-45 NETWORK JACK
125-01-0200
125-01-0203
125-01-0204
COMMUNICATION
CONNECTION TO BE
DONE IN FIELD
L1
N
G
~115 VAC - 1Ø - 50/60 Hz
TAG ORANGE
125-01-3282
FUSE HOLDER
125-01-3283
15 AMP FUSE
W G BK
LIGHT SWITCH
TIPPETTE
125-01-0311
DUPLEX
(1) 125-01-0096
0.2 AMPS @ 115V
0.35 AMPS @ 115V
"OPTION A "
LOWER FRONT SECTION
SHELF LIGHTS
"OPTION B"
LOWER FRONT SECTION
T-STA T/SOLENOID
"OPTION C"
REFIGERAT ED REAR
0.4 AMPS @ 115V
ELECTRICAL (MAX LOADS)
STANDARD CASE
EVAP FANS
DATE:
08/09/05
PROJECT TITLE: DWG #:
DRAWING TITLE:
R3/CR3 MEAT/FISH - 4FT
R-3 2002 - 4FT W0180016
TAG "TOP"
WHITE/BLACK
TAG BROWN TAG BLUE
L
125-01-0311
L
BALLAST 125-01-3266
WIRE IF
UNUSED
LIGHT SWITCH
TIPPETTE
BALLAST 125-01-3266
(1) 225-01-0707
EVAPFANS
(2) 0392457 @ 115V
M M
M
115V
(1) 225-02-0513
CAP OFF
T-STAT
COIL ASSY
REFRIGERATED REAR STORAGE
"OPTION C"
SUCTION
SOLENOID
(1) 225-01-3202
TOP SECTION
T-STAT
(1) 225-01-0707
F28T5-48"
125-03-1131
F25T8-36"
125-03-0020
SUCTION SOLENOID
(1) 225-01-3202
"OPTION A"
F32T8-48"
125-03-0028
LOWER FRONT SECTION
"OPTION B"
FRONT SECTION
SHELF LIGHT
LOWER
FRONT ROW
LIGHTING
BACK ROW
LIGHTING
TOP SECTION
TAG "REAR
STORAGE
PAGE OF
T-STAT
(1) 600-22-0050
17
HTR ELMT 43"
150W @ 115V
(1) 125-01-1304
**DO NOT WIRE A HEATING ELEMENT TO
THE FIXED GLASS MEA T/FISH R-3 2002
CASES.
*NOTE, FIXED GLASS MEAT/FISH CASES
DO NOT HAVE AN ANTI-SWEAT HEATER
R3(CR3),R3HV(CR3HV)-M/F-0707
Schematics
ELECTRICAL (MAX LOADS)
CASE OPTIONS
LIGHTS
ANTI-SWEAT HEATER
STORAGE
DUPLEX
W G BK
L1
N
G
~115 VAC - 1Ø - 50/60 Hz
TAG ORANGE
FUSE 125-01-32 82
15 AMP FUSE
FUSE HOLDER
125-01-3283
(1) 125-01-0 096
LIGHT SWITCH
TIPPETTE
125-01-0311
125-01-0203
125-01-0204
COMMUNICATION
CONNECTION TO BE
DONE IN FIELD
1.9 AMPS @ 115V
RJ-45 NETWORK JACK
125-01-0200
0.2 AMPS @ 115V
0.48 AMPS @ 115V
"OPTION A "
LOWER FRONT SECTION
SHEL F LIGHTS
"OPTION B"
LOWER FRONT SECTION
T-S TAT/S OLENOID
"O PTION C"
REFIGERA TED REAR
T-S TAT/S OLENOID
0.2 AMPS @ 115V
LOWER FRONT SECTION
2.0 AMPS @ 115V
2.5 AMPS @ 115V
0.4 AMPS @ 115V
ELECTRICAL (M AX LOADS)
STANDARD CASE
EVAP FANS
DATE:
08/09/05
PROJECT TITLE: DWG #:
DRAWING TITLE:
R3/CR3 MEAT/FISH - 6FT
L
BALLAST 125-01- 3266
BALLAST 125-01- 3266
LIGHT SWITCH
TIPPETTE
125-01-0311
L
BALLAST 125-01- 3266
BALLAST 125-01-3267
T-STAT
(1) 225-01-0707
TAG "TOP"
WHITE/BLACK
EVAPFANS
(2) 0392457 @ 115V
CAP OFF
WIRE
CAP OFF
WIRE
SUCTION
SOLENOID
(1) 225-01-3202
T-STAT
(1) 225-01-0707
TOP SECTION
F21T5-36"
125-03-1128
F21T5-36"
125-03-1128
F21T5-36"
125-03-1128
F21T5-36"
125-03-1128
LOWER FRONT SECTION
SHELF LIGHT
"OPTION A"
SUCTION SOLENOID
(1) 225-01-3202
"OPTION B"
LOWER FRONT SECTION
F40T8-60"
125-03-1167
F40T8-60"
125-03-1167
FRONT ROW
LIGHTING
BACK ROW
LIGHTING
TOP SECTION
TOP SECTION
M M
TAG BROWN TAG BLUE
R-3 2002 - 6FT W0180017
TAG "REAR
STORAGE
PAGE OF
M
115V
(1) 225-02-1333
T-STAT
(1) 600-22-0050
REFRIGERATED REAR STORAGE
COIL ASSE MBLY
"OPTION C"
*NOTE, FIXED GLASS MEAT/FISH CASES
DO NOT HAVE AN ANTI-SWEAT HEATER
**DO NOT WIRE A HEATING ELEMENT TO
THE FIXED GLASS MEAT/FISH R-3 2002
CASES.
HTR ELMT 6 7"
225W @ 115V
(1) 125-01-1303
18
Rev. 0707
~115 VAC - 1Ø - 50/60 Hz
Schematics
RJ-45 NETWORK JACK
125-01-0200
125-01-0203
125-01-0204
COMMUNICATION
CONNECTION TO BE
DONE IN FIELD
SHELF LIGHTS
"OPTION B"
LOWER FRONT SECTION
T-S TAT/S OLENOID
"O PTION C"
REFIGERA TED REAR
STORAGE
1.3 AMPS @ 115V
L1
N
G
TAG ORANGE
15 AMP FUSE
125-01-3282
FUSE HOLDER
125-01-3283
LIGHT SWITCH
TIPPETTE
125-01-0311
W G BK
DUPLEX
(1) 125-01-0096
0.2 AMPS @ 115V
0.7 AMPS @ 115V
ELECTRICAL (MAX LOADS)
CASE OPTIONS
LIGHTS
ANTI-SWEAT HEATER
"OPTION A "
LOWER FRONT SECTION
T-S TAT/S OLENOID
0.2 AMPS @ 115V
LOWER FRONT SECTION
2.6 AMPS @ 115V
1.9 AMPS @ 115V
0.8 AMPS @ 115V
ELECTRICAL (MAX LOADS)
STANDARD CASE
EVAP FANS
L
BALLAST 125-01-3266
BALLAST 125-01-3266
LIGHT SWITCH
TIPPETTE
125-01-0311
L
BALLAST 125-01-3266
BALLAST 125-01-3266
SUCTION
SOLENOID
T-STAT
(1) 225-01-0707
TAG "TOP"
WHITE/BLACK
(1) 225-01-3202
T-STAT
(1) 225-01-0707
TOP SECTION
F28T5-48"
125-03-1131
F28T5-48"
125-03-1131
F28T5-48"
125-03-1131
F28T5-48"
125-03-1131
F25T8-36"
125-03-0020
F25T8-36"
125-03-0020
SUCTION SOLENOID
(1) 225-01-3202
F32T8-48"
125-03-0028
F32T8-48"
125-03-0028
LIGHTING
LOWER FRONT SECTION
"OPTION B"
"OPTION A"
BACK ROW
LOWER FRONT SECTION
SHELF LIGHT
LIGHTING
FRONT ROW
TOP SECTION
DATE:
08/09/05
M M M M
EVAPFANS
(4) 0392457 @ 115V
PROJECT TITLE: DWG #:
DRAWING TITLE:
R3/CR3 MEAT/FISH - 8FT
R-3 2002 - 8FT W0180018
PAGE OF
TAG BROWN
STORAGE
TAG BLUE
REFRIGERATED REAR STORAGE
M M
COIL ASSY
115V
(2) 225-02-0513
TAG "REAR
T-STAT
(1) 600-22-0050
"OPTION C"
(1) 125-01-1302
HTR ELMT 91"
300W @ 115V
CASES.
**DO NOT WIRE A HEATING ELEMENT TO
THE FIXED GLASS MEAT/FISH R-3 2002
*NOTE, FIXED GLASS MEAT/FISH CASES
DO NOT HAVE AN ANTI-SWEAT HEATER
19
G
~115 VAC - 1Ø - 50/60 Hz
R3(CR3),R3HV(CR3HV)-M/F-0707
Schematics
W G BK
L1
N
TAG ORANGE
15 AMP FUSE
FUSE HOLDER
125-01-3283
FUSE 125-01-3282
DUPLEX
(1) 125-01-0096
LIGHT SWITCH
TIPPETTE
125-01-0311
125-01-0204
COMMUNICATION
CONNECTION TO BE
DONE IN FIELD
RJ-45 NETWORK JACK
125-01-0200
125-01-0203
1.9 AMPS @ 115V
"O PTION C"
REFIGERA TED REAR
STORAGE
0.2 AMPS @ 115V
LOWER FRONT SECTION
T-S TAT/S OLENOID
SHELF LIGHTS
"OPTION B"
1.4 AMPS @ 115V
ELECTRICAL (MAX LOADS)
CASE OPTIONS
LIGHTS
ANTI-SWEAT HEATER
0.2 AMPS @ 115V
T-STA T/SOLENOID
3.9 AMPS @ 115V
2.5 AMPS @ 115V
"OPTION A "
LOWER FRONT SECTION
1.6 AMPS @ 115V
ELECTRICAL (M AX LOADS)
STANDARD CASE
EV AP F A NS
F28T5-48"
125-03-1131
F28T5-48"
125-03-1131
F28T5-48"
125-03-1131
F32T8-48"
125-03-0028
F32T8-48"
125-03-0028
F32T8-48"
125-03-0028
F25T8-36"
125-03-0020
SUCTION SOLENOID
(1) 225-01-3202
LOWER FRONT SECTION
BACK ROW
LIGHTING
LOWER FRONT SECTION
"OPTION B"
LOWER FRONT SECTION
SHELF LIGHT
"OPTION A"
FRONT ROW
LIGHTING
FRONT
ROW
LIGHTING
BACK
ROW
LIGHTING
TOP SECTION
L
BALLAST 125-01-3266
L
BALLAST 125-01-3266
BALLAST 125-01-3266
BALLAST 125-01-3266
LIGHT SWITCH
TIPPETTE
125-01-0311
L
BALLAST 125-01-3266
BALLAST 125-01-3266
BALLAST 125-01-3266
(1) 225-01-0707
TAG "TOP"
DATE:
WHITE/BLACK
CAP OFF
WIRE
CAP OFF
WIRE
SUCTION
SOLENOID
T-STAT
(1) 225-01-3202
TOP SECTION
T-STAT
(1) 225-01-0707
F28T5-48"
125-03-1131
F28T5-48"
125-03-1131
F28T5-48"
125-03-1131
F25T8-36"
125-03-0020
F25T8-36"
125-03-0020
08/09/05
PROJECT TITLE: DWG #:
DRAWING TITLE:
R3/CR3 MEAT/FISH - 12FT
R-3 2002 - 12FT W0180020
PAGE OF
TAG BROWN
TAG "REAR
STORAGE
TAG BLUE
(1) 600-22-0050
T-STAT
M M M
EVAP FANS
(6) 0392457 @ 115V
M
M
M
115V
(2) 225-02-1333
COIL ASSEMBLY
REFRIGERATED REAR STORAGE
"OPTION C"
(1) 125-01-1300
450W @ 115V
*NOTE, FIXED GLASS MEAT/FISH CASES
DO NOT HAVE AN ANTI-SWEAT HEATER
**DO NOT WIRE A HEATING ELEMENT TO
THE FIXED GLASS MEAT/FISH R-3 2002
CASES.
HTR ELMT 139"
M M
20
Rev. 0707
Appendices
APPENDIX A. – Temperature Guidelines
The refrigerators should be operated according to
Hussmann’s published engineering specifi cations
for entering air temperatures for specifi c equipment
applications. Table 1 shows the typical temperature
of the air entering the food zone one hour before the
start of defrost and one hour after defrost for various
categories of refrigerators. Refer to Appendix C for
Field Evaluation Guidelines.
TABLE 1
TYPE OF TYPICAL ENTERING
REFRIGERATOR AIR TEMPERATURE
I. OPEN DISPLAY
A. Non frozen:
1) Meat 26°F
2) Dairy/Deli 28°F
3) Produce
a. Processed 36°F
b. Unprocessed 45°F
B. Frozen 0°F
C. Ice Cream -5°F
II. CLOSED DISPLAY
A. Non frozen:
1) Meat 28°F
2) Dairy/Deli 30°F
3) Produce
a. Processed 36°F
b. Unprocessed 45°F
B. Frozen 0°F
C. Ice Cream -5°F
APPENDIX B. – Application
Recommendations
1.0 Temperature performance is critical for
controlling bacteria growth. Therefore, the
following recommendations are included
in the standard. They are based on confi rmed fi eld experience over many years.
1.1 The installer is responsible for following
the installation instructions and recommendations provided by Hussmann for
the installation of each individual type
refrigerator.
1.2 Refrigeration piping should be sized according to Hussmann's equipment recommendations and installed in accordance
with normal refrigeration practices. Refrigeration piping should be insulated according to Hussmann’s recommendations.
1.3 A clogged waste outlet blocks refrigeration. The installer is responsible for the
proper installation of the system which
dispenses condensate waste through an
air gap into the building indirect waste
system.
1.4 The installer should perform a complete
start-up evaluation prior to the loading of
food into the refrigerator, which includes
such items as:
a) Initial temperature performance, Coils
should be properly fed with a refrigerant according to Hussmann’s recommendations.
b) Observation of outside infl uences
such as drafts, radiant heating from
the ceiling and from lamps. Such infl u-
ence should be properly corrected or
compensated for.
c) At the same time, checks should be
made of the store dry-bulb and wetbulb temperatures to ascertain that
they are within the limits prescribed by
Hussmann.
d) Complete start-up procedures should
include checking through a defrost
to make certain of its adequate fre-
Single Deck Multi Deck ServiceCase Reach-In
I. Open Display Styles II. Closed Display Styles
21
R3(CR3),R3HV(CR3HV)-M/F-0707
quency and length without substantially exceeding the actual needs. This
should include checking the electrical
or refrigerant circuits to make sure that
defrosts are correctly programmed for
all the refrigerators connected to each
refrigeration system.
e) Recording instruments should be used
to check performance.
APPENDIX C. – Field Recommendations -
Recommendations for fi eld evaluating the performance
of retail food refrigerators and hot cases
1.0 The most consistent indicator of display
refrigerator performance is the temperature of the air entering the product zone
(Refrigerated see Diagram 1, Appendix
A). In practical use, the precise determination of return air temperature is extremely diffi cult. Readings of return air
temperatures will be variable and results
will be inconsistent. The product temperature alone is not an indicator of refrigerator performance.
NOTE: Public Health will use the tempera-
ture of the product in determining if the
refrigerator will be allowed to display potentially hazardous food. For the purpose
of this evaluation, product temperature
above the FDA Food Code 1993 temperature for potentially hazardous food will
be the fi rst indication that an evaluation
should be performed. It is expected that
all refrigerators will keep food at the FDA
Food Code 1993 temperature for potentially hazardous food.
1.1 The following recommendations are made
for the purpose of arriving at easily taken
and understood data which, coupled with
other observations, may be used to determined whether a display refrigerator is
working as intended:
a) INSTRUMENT – A stainless steel
stem-type thermometer is recommended and it should have a dial a
minimum of 1 inch internal diameter. A
test thermometer scaled only in Celsius or dually scaled in Celsius and
Fahrenheit shall be accurate to 1°C
(1.8°F). Temperature measuring devices that are scaled only in Fahrenheit
shall be accurate to 2°F. The ther-
mometer should be checked for proper
calibration. (It should read 32°F when
the stem is immersed in an ice water
bath).
b) LOCATION – The probe or sensing
element of the thermometer should be
located in the airstream where the air
fi rst enters the display or storage area,
and not more than 1 inch away from
the surface and in the center of the
discharge opening.
c) READING – It should fi rst be deter-
mined that the refrigerator is refrigerating and has operated at least one hour
since the end of the last defrost period.
The thermometer reading should be
made only after it has been allowed
to stabilize, i.e., maintain a constant
reading.
d) OTHER OBSERVATIONS – Other
observations should be made which
may indicate operating problems, such
as unsatisfactory product, feel/appearance.
e) CONCLUSIONS – In the absence of
any apparent undesirable conditions,
the refrigerator should be judged to be
operating properly. If it is determined
that such condition is undesirable, i.e.,
the product is above proper temperature, checks should be made for the
following:
1. Has the refrigerator been loaded with
warm product?
2. Is the product loaded beyond the “Safe
Load Line” markers?
3. Are the return air ducts blocked?
4. Are the entering air ducts blocked?
5. Is a dumped display causing turbulent air
fl ow and mixing with room air?
6. Are spotlights or other high intensity
lighting directed onto the product?
7. Are there unusual draft conditions (from
heating /air-conditioning ducts, open
doors, etc.)?
8. Is there exposure to direct sunlight?
8. Are display signs blocking or diverting
airfl ow?
9. Are the coils of the refrigerator iced up?
22
Rev. 0707
11. Is the store ambient over 75°F, 55% RH
as set forth in ASHRAE Standard 72 and
ASHRAE Standard 117?
12. Are the shelf positions, number, and size
other than recommended by Hussmann?
13. Is there an improper application or
control system?
14. Is the evaporator fan motor/blade
inoperative?
15. Is the defrost time excessive?
16. Is the defrost termination, thermostat (if
used) set too high?
17. Are the refrigerant controls incorrectly
adjusted?
18. Is the air entering the condenser above
design conditions? Are the condenser
fi ns clear of dirt, dust, etc.?
19. Is there a shortage of refrigerant?
20. Has the equipment been modifi ed
to use replacements for CFC-12,
CFC-502 or other refrigerant? If so,
have the modifi cations been made in
accordance with the recommendations
of Hussmann's equipment? Is the
refrigerator charged with the proper
refrigerant and lubricant? Does
the system use the recommended
compressor?
APPENDIX D. –
Recommendations to user
1.0 Hussmann should provide instructions
and recommendations for proper periodic
cleaning. The user will be responsible
for such cleaning, including the cleaning
of low temperature equipment within the
compartment and the cooling coil area(s).
Cleaning practices, particularly with respect to proper refrigerator unloading and
warm-up, must be in accordance with applicable recommendations.
1.1 Cleaning of non frozen food equipment
should include a weekly cleaning of the
food compartment as a minimum to prevent bacteria growth from accumulating.
Actual use and products may dictate more
frequent cleaning. Circumstances of use
and equipment design must also dictate
the frequency of cleaning the display
areas. Weekly washing down of the storage compartment is also recommended,
especially for equipment subject to drippage of milk or other liquids, or the collec-
tion of vegetable, meat, crumbs, etc. or
other debris or litter. Daily cleaning of the
external areas surrounding the storage or
display compartments with detergent and
water will keep the equipment presentable
and prevent grime buildup.
1.2 Load levels as defi ned by Hussmann
must be observed.
1.3 The best preservation is achieved by following these rules:
a) Buy quality products.
b) Receive perishables from transit
equipment at the ideal temperature for
the particular product.
c) Expedite perishables to the store’s
storage equipment to avoid unnecessary warm-up and prolonged temperature recovery. Food store refrigerators are not food chillers nor can they
reclaim quality lost through previous
mishandling.
d) Care must be taken when cross
merchandising products to ensure that
potentially hazardous vegetable products are not placed in non refrigerated
areas.
e) Display and storage equipment doors
should be kept closed during periods
of inactivity.
f) Minimize the transfer time of perish-
ables from storage to display.
g) Keep meat under refrigeration in meat
cutting and processing area except for
the few moments it is being handled in
processing. When a cut or tray of meat
is not to be worked on immediately,
the procedure should call for returning
it to refrigeration.
h) Keep tools clean and sanitized. Since
mechanical equipment is used for
fresh meat processing, all such equipment should be cleaned at least daily
and each time a different kind of meat
product comes in contact with the tool
or equipment.
i) Make sure that all refrigeration equip-
ment is installed and adjusted in strict
accordance with Hussmann’s recommendations.
j) See that all storage and refrigeration
equipment is kept in proper working
order by routine maintenance.
23
R3(CR3),R3HV(CR3HV)-M/F-0707
Service Record
Last service date: By:
Additional copies of this publication may be obtained by
contacting:
Hussmann
13770 Ramona Avenue • Chino, California 91710
(909) 628-8942 FAX
(909) 590-4910
®
The MODEL NAME and SERIAL NUMBER is required in order to
provide you with the correct parts and information for your particular
unit.
They can be found on a small metal plate on the unit.
Please note them below for future reference.
MODEL:
SERIAL NUMBER:
24
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