Structural Concepts Oasis B824TM, Oasis B424TM.4857, Oasis B424TM, Oasis B424TM.4489 Installation And Operating Manual
Page 1
READ AND SAVE THESE INSTRUCTIONS
INSTALLATION AND
OPERATING MANUAL
PN 54298
IN AISLE SELF-SERVICE REFRIGERATED CASES WITH TOP MOUNT CONDENSER PACKAGE
MODEL B824TM Shown
(With Optional Upper Lights)
MODEL B424TM Shown
(With Optional Night Air Curtain)
Model B424TM……………………………………...…..... 47 1/4”L* x 25”D x 84 3/4”H~
Model B424TM.4489……………...……………….…….. 47 1/4”L* x 25”D x 84 3/4”H~
Model B424TM.4857……………...……………….……...47 1/4”L* x 25”D x 84 3/4”H~
Model B824TM……………………...……………….…….92 1/4”L* x 25”D x 84 3/4”H~
*Includes End Panels
~ Units With Levelers Extended 1 5/8” Below Base Frame To Attain Listed Height
888 E. Porter Road · Muskegon, MI 49441 Phone: 231.798.8888 Fax: 231.798.4960 www.structuralconcepts.com
I:\Oper Manuals\Oasis\B424TM_4489_4857_B824TM_54298.pub
Rev E Date: 3.25.2015
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TABLE OF CONTENTS
OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS ...……….....…...……….
INSTALLERS: FOLLOW THESE INSTRUCTIONS! ………….………………………………………..…..
POSITIONING CASE / SHIMMING SUPPORT RAILS / ADJUSTING LEVELERS ………………..…...
CASE STARTUP & REFRIGERATION PACKAGE ACCESS - MODELS B424TM, B424TM.4489 &
B424TM.4857 ...…………………………………………………………………………………...…...
CASE STARTUP & REFRIGERATION PACKAGE ACCESS - MODEL B824TM ONLY …………..….
CASE STARTUP & REFRIGERATION ASSEMBLY ACCESS - EVAP. COIL FAN / TXV VALVE ...…
HONEYCOMB AIR DIFFUSER ACCESS / REMOVAL / INSTALLATION .……………...…………..….
LIGHT FIXTURES (INCLUDING OPTIONAL LIGHTS IN HEADER) ..………………………………..….
CONDENSATE PUMP AND PAN ACCESS …..………………………………………………………..…..
OPTIONAL NIGHT AIR CURTAIN OPERATING INSTRUCTIONS ……………………………………...
GENERAL CLEANING (TO BE PERFORMED BY STORE PERSONNEL) …………………..………...
TROUBLESHOOTING (TO BE PERFORMED BY STORE PERSONNEL) ……………………...……...
GENERAL CLEANING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) ……....
PREVENTIVE MAINTENANCE (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS
ONLY) …....................................................................................................................................
TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) …..…..
TROUBLESHOOTING - CONDENSING SYSTEM (TO BE PERFORMED BY TRAINED SERVICE
PROVIDERS ONLY) …..……………………………………………………………………………..
TROUBLESHOOTING - EVAPORATOR SYSTEM (TO BE PERFORMED BY TRAINED SERVICE
PROVIDERS ONLY) …..............................................................................................................
SERIAL LABEL LOCATION & INFORMATION LISTED / TECH INFO & SERVICE …..…………...…..
CAREL® CONTROLLER OPERATING INSTRUCTION ………………………………………………......
SCC TECHNICAL SERVICE CONTACT INFORMATION & WARRANTY INFORMATION .................
3-4
10
11
12
13
14
15
16
17
18-19
20
21
22
23-25
26
5
6
7
8
9
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OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS - PAGE 1 of 2
OVERVIEW
These Structural Concepts Oasis® self-service
cases are designed to merchandise packaged
products at 41 °F (5 °C) or less product temperatures
(unless custom cases with wire rack shelving).
Cases should be installed and operated according to
this operating manual’s instructions to insure proper
performance. Improper use will void warranty.
TYPE I vs. TYPE II ENVIRONMENTAL CONDITIONS
This unit is designed for the display of products in
ambient store conditions where temperature and
humidity are maintained within a specific range.
Type I display refrigerators are intended for use in an
area where environmental conditions are controlled
and maintained so that the ambient temperature does
not exceed 75 °F (24 °C) and 55% maximum humidity.
Type II display refrigerators are intended for use in an
area where environmental conditions are controlled
This equipment MUST be installed in compliance with
all applicable NEC, federal, state and local
ATTENTION
CONTRACTORS
and maintained so that the ambient temperature does not
exceed 80 °F (27 °C) and 60% maximum humidity.
If unsure if your unit is Type I or II, see tag next to serial
label. See SERIAL LABEL LOCATION &
INFORMATION LISTED / TECH INFO & SERVICE
section in this manual for sample serial labels.
COMPLIANCE
Performance issues when in violation of applicable
NEC, federal, state and local electrical and plumbing
codes are not covered by warranty.
See below compliance guideline.
WARNINGS
Following are important warnings to prevent injury or
death.
Please read carefully!
See next page for PRECAUTIONS.
COMPLIANCE
electrical and plumbing codes.
WARNING
ELECTRICAL
HAZARD
WARNING
KEEP
HANDS
CLEAR
WARNING
HOT
SURFACE
WARNING
Risk of electric shock. Disconnect power before servicing unit.
CAUTION! More than one source of electrical supply is
employed with units that have separate circuits.
Disconnect ALL ELECTRICAL SOURCES before servicing.
WARNING
Hazardous moving parts. Do not operate unit with covers removed.
Fan blades may be exposed when deck panel is removed.
Disconnect power before removing deck panel.
WARNING
Condenser Pan / Hot Gas Loop Condensate System is Hot!
Disconnect and allow to cool
before cleaning or removing from case.
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OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS - PAGE 2 of 2
PRECAUTIONS
Following are important precautions to prevent damage to unit or merchandise.
Please read carefully!
See previous page for specifics on OVERVIEW, TYPE I AND TYP II ENVIRONMENTAL CONDITIONS,
COMPLIANCE and WARNINGS.
CAUTION
CAUTION
Fluorescent lamps have been treated to resist breakage
and must be replaced with similarly treated lamps.
CAUTION
CAUTION! GFCI BREAKER USE REQUIREMENT
If N.E.C. (National Electric Code) or your local code
requires GFCI (Ground Fault Circuit Interrupter) protection,
you MUST use a GFCI breaker in lieu of a GFCI receptacle.
CAUTION! ADVERSE CONDITIONS / SPACING ISSUES
Performance issues caused by adverse conditions are NOT covered
by warranty.
End panels must be kept at least 6-inches away from any structure to
prevent condensation.
Unit must be kept at least 15-feet from exterior doors, overhead
HVAC vents or any air curtain disruption to maintain proper
temperatures.
Unit must not be exposed to direct sunlight or any heat source
(ovens, fryers, etc.).
Tile floors, low ceilings or small rooms will increase noise level.
Whisper Cool compressor blanket or remote unit may resolve noise
level issues.
Keep at least 8-inch clearance above unit for air discharge
(self-contained units only).
WIRING DIAGRAM FORMAT & LOCATION
Each case has its own wiring diagram folded and in its own packet.
Wiring diagram placement may vary; it may be placed near ballast box,
field wiring box, raceway cover, or other related location.
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INSTALLERS: FOLLOW THESE INSRUCTIONS
1. Remove Shipping Brackets Attached to Skid
Remove screws holding Case Shipping Brackets to skid.
Remove Case Shipping Brackets from Skid.
See illustration at right. Note: Shipping Brackets will vary
in size, shape, material and location depending upon case
type and model.
2. Remove Unit From Skid
While supporting case, carefully slide case off from skid at
either left or right side of case (NOT at case rear or front).
See illustration at mid-right for method.
Remove Shipping Support Board
Place into proper position.
3. Attach Condensate Pan to Unit
Condensate pump pan is shipped separately from case.
After case is in position, plug cord into electrical box at
underside of case, hook condensate hose to pump nozzle.
Slide into place (at case underside).
See illustrations 3A through 3D below.
Note: Images 3A through 3D are for illustrative purposes
only. Though images may show condensate pan on skid,
case has been removed from skid prior to these steps.
Caution! Be sure to loop the pump’s electrical cord
through the cord hooks under the case.
SCC P/N 54113
Case
Shipping
Brackets
Carefully Slide
3A
Case Off Skid
Pump Nozzle
Condensate
Pump Pan
Electrical cord from pump (to be
looped through the cord hooks
under the case).
3B
Condensate Pump
Pan Support
Bracket (one at
either side)
I:\Oper Manuals\Specialty\CDR4489.B424TM Skid RemovalSheet\4489.B424TM_Skid_Removal_Sheet_54413.pub
Condensate
Pump Hose
Drain Pipe (to
be positioned
over
condensate
pump pan)
3C
Shipping
Support Board
View of Condensate Pump
Pan (Positioned Properly and
Fully Connected)
Sliding Condensate
Pump Pan under case
Rev B Date: 1.22.2011
3D
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POSITIONING CASE / SHIMMING SUPPORT RAILS / ADJUSTING LEVELERS
Note: Units shown may not depict an exact representation of your particular unit being installed.
1. Position & Align Case Alongside Other
Cases
Before adjusting levelers (or shimming frame
support rails), make certain that the case is
in proper position and, if required, aligned
with adjoining case(s).
This may require the repositioning of the
case you are installing or
the already
positioned case(s).
2. Cases With Frame Support Rails: Shim
Illustration at top right shows case with frame
support rails.
Shims will be provided with all cases that
have frame support rails.
Use shims to level case.
Note: After case is in position, it must be
sealed to floor to prevent entry or
leakage of liquid or moisture.
3. Cases With Levelers: Adjust Levelers
After case is in position, adjust case so it is
Frame Support
Rails
level and plumb (as shown at right).
You may need to remove front and/or rear
toe-kick to access levelers.
Use adjustable wrench (and possibly a pry
bar) to adjust leveler.
Do not use pry bar on toe-kick as it may
buckle.
Do not use pry bar on end panel; it may chip.
Use pry bar ONLY on base frame to avoid
Frame Support
Rails
damaging case.
See illustration and photos at lower right.
Pry Bar
6
Adjustable
Wrench
Leveler
Base
Frame
Toe-Kick
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CASE STARTUP & REFRIGERATION PKG. ACCESS - MODELS B424TM, B424TM.4489 & B424TM.4857
Electrical and Control Access
Main power cord and switch are accessible from
the top front right hand side of header assembly.
Thermostat control settings / refrigeration service
ports / evaporator pan are also accessible from top.
Illustration below provides layout of components.
Condensate Pan Access
Warning! Disconnect power before providing
maintenance and service to unit.
Condensate pan is accessible from the top of the
unit.
Unplug the evaporator pan from its outlet.
Remove screws holding the condensate pan foot to
the compressor pan (see illustration below).
Compressor
Electrical Box
Caution! To avoid injury, check temperature of
pan prior to handling condensate pan.
If condensate pan must be removed from unit
(to properly clean), remove carefully by lifting
condensate pan up and off base.
Empty condensate pan contents into suitable
container.
See PREVENTIVE MAINTENANCE (TO BE
PERFORMED BY TRAINED SERVICE
PROVIDERS) section in this manual for
cleaning specifics.
When done servicing or cleaning, return and
reconnect in reverse order it was removed.
Note: See next page for Model B824TM
refrigeration package layout & access.
Ballast Box /
Contactor / Terminal
Condensate Pan
and Removal
Compressor Receiver Receiver Sight Glass
Screws
Strip / Thermostat
Controller /
Main Power Switch
Condenser
Coil
Condenser
Coil Fans
--- Case Front ---
7
Thermostat
Controller
Main Power
Switch
Page 8
CASE STARTUP & REFRIGERATION PACKAGE ACCESS - MODEL B824TM ONLY
Electrical and Control Access
Main power cord and switch are accessible from the
top front right hand side of header assembly.
Thermostat control settings / refrigeration service
ports / evaporator pan are also accessible from top.
Illustration below provides layout of components.
Hot Gas Loop Condensate Pan (and Electric Coil
Overflow Pan) Access
Warning! Turn off Main Power Switch Before
Providing Maintenance or Service to Unit.
Both hot loop condensate pan and electric coil over-
flow pan is accessible from top of unit.
Caution! Before accessing pans, turn main
power off and allow to cool!
Electrical Box
For Overflow
Unit
Drain (From Hot
Gas Condensate
Coils and Pan
Hot Gas
Condensate
Coils and Pan
To avoid injury, check temperature of pans
prior to accessing.
See PREVENTIVE MAINTENANCE (TO BE
PERFORMED BY TRAINED SERVICE
PROVIDERS) section in this manual for
cleaning specifics.
When done servicing or cleaning, turn main
power switch back on.
Note: See previous page for other models’
refrigeration package layout & access
instructions.
Accumulator
Electrical
Box
Main Power
Switch
Thermostat
Controller
Condenser
Coil
Condenser
Coil Fans
Receiver
Filter Dryer
--- Case Front ---
8
Sight Glass
Scroll
Compressor
Ballast Box /
Contactor / Terminal
Strip / Thermostat
Controller / Main
Power Switch
Page 9
CASE STARTUP & REFRIGERATION ASSEMBLY ACCESS - EVAP. COIL FAN / TXV VALVE
1. Evaporator Coil Fan Discharge
When Main Power Switch is turned on, Refrigeration Assembly will energize (see CASE START-UP &
REFRIGERATION ASSEMBLY ACCESS section).
Evaporator Coil fan should turn on. From inside of the case, check for discharge air from honeycomb
discharge duct (see next page for honeycomb location), to confirm that the fan is functioning properly.
When the case is in a start up mode or has been idle for a long period of time, the unit will require 75
minutes of run time to pull-down temperature.
2. TXV Valve
TXV Valve (at Customer Front-Left of Case).
Decking must be removed for access.
See illustration below for location.
Decking
View of TXV valve after
customer end panel
removed (for illustrative
purposes only).
Evaporator Coil
fan assembly
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HONEYCOMB AIR DIFFUSER ACCESS / REMOVAL / INSTALLATION
1. Honeycomb Air Diffuser Removal
Honeycomb is located in discharge air duct.
Use a device of suitable strength and agility such as a ballpoint pen or long nose pliers.
Wedge instrument in Honeycomb near the Front Honeycomb Retainer Lip (see illustration below).
Applying pressure toward case rear, so that Honeycomb will scrunch together; then pry downward and
away from the top light and discharge panel.
Pull honeycomb out fully buy grasping with fingers and pulling downward.
2. Honeycomb Air Diffuser Installation
Insert honeycomb up into Rear Honeycomb Retainer Lip first.
Apply pressure toward case rear, so that the Honeycomb will ‘scrunch’ together; then apply pressure to
honeycomb, lifting it up past Front Honeycomb Retainer Lip and ‘un-scrunch’ Honeycomb.
Note: Depending upon model and features, the illustration below may slightly differ from yours.
Note: Illustration below reflects general outline of sample case and does not reflect any particular model
or options.
Honeycomb
Front
Honeycomb
Rear
Honeycomb
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LIGHT FIXTURES (INCLUDING OPTIONAL LIGHTS IN HEADER)
Optional: Lights in Headers Are
Accessible From Top of Case.
Ample Space is Provided For
Lamp Removal/Replacement
Light
Switch
Light Fixtures (Note: Light Fixtures May Not Be on All Cases)
Warning! Disconnect power before providing maintenance and
service to unit.
Caution: Lamps have been treated to resist breakage and must
be replaced with similarly treated lamps.
Note: Light Switch is at underside of header, behind honeycomb.
All lights come on at same time when light switch is turned on.
Light fixtures are to be located on underside of shelf assembly, at the
top inside of case, and lower front nose of case. Some cases have
lights in header. See illustration at right for lamp locations.
Removal of lamp:
Rotate lamp (1/4-turn) either direction to disengage (upper or
lower) pins/contacts from lamp-mounting sockets.
Remove bulb by applying even pressure from back side at the
bulb ends and pulling the remaining contact from sockets.
Installation of lamp:
Align pins with slot.
Insert pins into socket by rotating the bulb 1/4-turn to secure
either the (upper or lower) pin contacts into the sockets.
Rotate remaining bulb contacts (1/4-turn) into remaining lamp
mounting socket contacts.
Lights in headers:
Lights in headers are optional.
Lights are accessible from top of case. Ample space is provided
for lamp removal and replacement
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CONDENSATE PUMP AND PAN ACCESS
Condensate Pump Pan Access
Warning! Disconnect power before providing maintenance and service to unit.
Remove the two (2) screws holding the toe kick in place. (see illustration below).
The Condensate Pan is accessible from the bottom of the unit. Unplug the Condensate Pan from its
outlet.
A 1/2” reinforced hose is provided to evacuate condenser water from condensate pump pan to an
evaporator pan placed on the top of case.
Disconnect pump hose from condensate pump Carefully slide out the Condensate Pan from the
Condensate Pump cradle.
When done servicing or cleaning, return and reconnect in reverse order it was removed.
Condensate Pump
Electrical Outlet (at
Right of Pump and
Pan on
Model B824TM
To remove the toe kick
remove the two screws
on each side of toe kick
Condensate
Pump & Pan
Condensate
Drain
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OPTIONAL NIGHT AIR CURTAIN OPERATING INSTRUCTIONS
Optional Night Air Curtain Operating Instructions
1. Use caution when handling Night Air Curtain.
2. Display case may come with Night Curtain already attached. If not, a retrofit kit will be provided. If using
SCC-supplied retrofit kit, attach to display case by inserting screws at top-underside of display case.
3. Grasp the handle and pull downward to desired location (see illustration below).
4. Night Air Curtain’s Magnets will hold curtain in lowered position (as illustrated below).
5. To return Night Air Curtain to its retracted position, grasp handle, lift up and away from its magnetic
attachment plate and carefully wind Night Air Curtain back into roll.
6. Caution!
Do not allow spring-loaded Night Air Curtain to freely snap back into roll. Doing so can eventually
destroy Night Air Curtain’s tension and retractability.
7. To entirely detach Night Air Curtain from case, slide Night Air Curtain toward rear of case, freeing it from its
‘keyhole’ slots. Lift upward and away from case.
Night Air Curtain Handle
Attachment Point For Night Air
Curtain’s Magnetic Retainers
Model B23.5258A Is Shown With
Optional Night Air Curtain.
Your Model May Vary.
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GENERAL CLEANING (TO BE PERFORMED BY STORE PERSONNEL)
AREA TO CLEAN FREQ. INSTRUCTIONS
Case Exterior Daily
Daily to
Weekly
Weekly to
Monthly
Acrylic (if Any): Clean with a warm water and mild soap solution and
soft cloth. Never use ammonia-based cleaners on acrylic.
Case Front/Sides/Bumper: Use a mild soap and water solution and a
soft cloth.
Condenser Coil: Vacuum or brush grille condenser coil at case front
(on top of case). Use metal or fiber brush to remove dust and dirt that
can collect on condenser coils. Be careful not to damage the fins on the
coil. See INSTALLATION section in this manual for instructions on side
panel removal.
Case Interior Daily to
Weekly
Shelves / Shelf Supports / Air Return Grilles / Decking / Inside End
Panels
Wipe off shelf supports, air return grilles and decking with moist
cloth.
Shelf supports can be removed for more thorough cleaning.
Air return grilles can be removed for more thorough cleaning.
Decking is NOT to be removed.
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TROUBLESHOOTING (TO BE PERFORMED BY STORE PERSONNEL)
CONDITION TROUBLESHOOTING
Case Is Not Level
Water Is On The Floor
Fan Emits Excessive Noise
Case Lights Are Not Working
Case is Not Holding Proper
Temperature
See POSITIONING CASE / SHIMMING SUPPORT RAILS /
ADJUSTING LEVELERS section in manual for additional information.
Call service provider.
Call service provider.
Check that light switch is in the on position.
Check that ALL of the light cords and plugs are properly connected. See
LIGHT FIXTURES (INCLUDING OPTIONAL LIGHTS IN HEADER)
section in this manual for specifics.
If case lights still do not come on, call service provider.
If a large amount of warm product was added to the case, it will take
time for the temperature to adjust. Product must be pre-chilled before
placing in case.
Check that the case is not in the sun or near a heat or air-conditioning
vent. See OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS /
PRECAUTIONS section in this manual for specifics.
If case is located near front doors, temperature fluctuation can hinder
unit’s ability to maintain temperature.
Check air return grilles (area at front of decking) for obstructions.
DO NOT set product on air grilles as this will prevent proper airflow!
If case still is not holding proper temperature, call service provider.
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GENERAL CLEANING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY)
WARNING! TURN OFF CASE BEFORE PERFORMING GENERAL CLEANING!
AREA TO CLEAN FREQUENCY INSTRUCTIONS
Case Interior Monthly Evaporator Fan Shroud Area (Under Decking): Caution! Due to
rotating fans in area, turn off case and disconnect plug from
wall outlet before beginning fan shroud (and surrounding tub
area) cleaning! 1) Turn off power. 2) Remove decks from case.
3) Clean fan shroud area (and surrounding tub area) with moist
cloth.
Monthly
Pan For Pumping Condensate to Top of Unit: (Located at
underside of unit): Remove front toe-kick to access.
Check that pump is working correctly.
Check that condensate pan is free of residue, dust or dirt.
If it must be cleaned, slide out from under unit; clean with mild
soap and water solution and soft cloth. Rinse. Return to
underside of case in reverse order it was removed from case.
Quarterly Tub & Drain: Caution! Due to rotating fans in area, turn off
power to case and disconnect plug from wall outlet before
beginning tub & drain cleaning! Vacuum tub under decks.
Clean with soap and water solution. Wipe dry with clean cloth.
Keep drain free of debris to prevent clogging.
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PREVENTIVE MAINTENANCE (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS)
WARNING! TURN OFF CASE BEFORE PERFORMING PREVENTIVE MAINTENANCE!
PREVENTIVE
FREQ. INSTRUCTIONS
MAINTENANCE
Case Exterior Quarterly
Quarterly Condensate Pan (or Hot Gas Loop Condensate Pan):
Under Case Cleaning: Whenever accessing condensate pump pan at
underside of case, vacuum (or use broom) under the case to remove all
dust, debris and dirt that may collect.
Warning! Condensate Pans Are HOT! Disconnect power from case
and allow to cool before cleaning!
See CASE STARTUP & REFRIGERATION PACKAGE ACCESS
section for in-depth instructions on accessing the condensate pans.
Use a scrub-brush and a de-scaling solution such as CLR® (to
prevent corrosion, lime and rust). Follow instructions as to proper
dilution, safety precautions and scrubbing method.
If condensate pan can be removed from case (should thorough
cleaning require removal), disconnect pan from unit and clean
accordingly. Caution! Due to electrical components, do not
submerse in water! Reattach to case after cleaning.
Hot gas condensate loop pan (and its accompanying electric coil
overflow pan) is not removable from case. After thoroughly cleaning
pan with scrub-brush and solution, rinse thoroughly with clean water
(using spray bottle) and wipe dry with sponge or paper towel.
Case Interior Quarterly Tub, Coil, Drain, Fan Blades, Motors, Brackets:
Disconnect power from the case before cleaning the Tub, Coil, Fan,
Motor and Drain Area!
Remove Decking, Sub-Deck (if any) and Fan Shroud.
Use vacuum to clean Evaporator Coils.
Clean Tub, Coil and Drain with warm water, clean cloth, brush and
mild soap solution.
Remove any debris that may clog drain.
Wipe down Fan Blades, Motors and Brackets with moist cloth.
Replace Decking, Sub-Deck (if any) and Fan Shroud.
Quarterly
Honeycomb: Check honeycomb air diffuser to determine if it is dirty.
If dirty, remove from case. See HONEYCOMB AIR DIFFUSER
ACCESS / REMOVAL / INSTALLATION section of this manual for
cleaning specifics.
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TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY)
CONDITION TROUBLESHOOTING
Water Is On The Floor
Fan Emits Excessive Noise
Check that the drain trap is free of debris.
Check that the drain hose is correctly positioned over evaporator pan.
Check store conditions.
For NSF® Type 1 Conditions (most cases): ambient conditions are to
be at 55% max. humidity / 75°F.
For NSF® Type 2 Conditions: ambient conditions are to be at 60%
maximum humidity / 80°F.
Check that the hot gas condensate pan is properly connected.
Check that evaporator pan is heating properly.
Check that the case is aligned, level and plumb.
Check evaporator fan for cleanliness.
Unplug/power off fan motors. Check motor shaft for bearing wear.
Check that fan motors are securely mounted in brackets.
Verify that fan blades are securely mounted to fan motor.
Check that nothing is preventing blade rotation.
Check that the fan shroud is properly secured.
Fans Are Not Working
Digital Control Display
Is Blank.
System Is Not Operating
Case Lights Are Not
Working
Check that the MAIN power switch is on.
Check that fans are plugged in at the fan shroud.
Check for foreign material obstructing fan performance.
Check that fan blades freely rotate within fan shrouds
Check that power is going to fans
Check that fan wiring is connected on terminal blocks.
Check that the MAIN power switch is on.
Check the circuit breaker box for tripped circuits.
Check that the utility power is on.
Check that the MAIN power switch is on.
Check the circuit breaker box for tripped circuits.
Check that light switch is in the on position.
Check that ALL of the light cords and plugs are properly connected. See
LIGHT FIXTURES/LIGHT SWITCH LOCATION section in this manual
for specifics.
Service Technicians Only: Check voltage at ballasts. If voltage is
entering but not exiting ballast, ballast is faulty.
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TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY), CONTINUED
CONDITION TROUBLESHOOTING
Control Display Is
Flashing
Case Is Not Holding
Temperature
See your case’s serial label for your model’s specified settings. See SERIAL
LABEL LOCATION & INFORMATION LISTED / TECH INFO & SERVICE
section in manual for label location, etc.
If a large amount of warm product was added to the case, it will take time for the
temperature to adjust. Unit needs product to be pre-chilled.
Temperature changes during defrost mode but will return to normal. Fourth LED
will indicate defrost cycle in progress.
Check that case is not in sun or near a heat or air-conditioning vent.
If case is located near front doors, temperature fluctuation can hinder unit’s ability
to maintain temperature.
Condensing Unit Is
Not Operating
Check that condenser coil has been cleaned.
Check air grilles for obstructions.
Check sight glass for flashing and/or low charge.
Check Set Point Temperature; it may be adjusted too high.
Check that the power is turned on.
Determine if temperature controller settings are properly set. See your case’s
serial label for your model’s specified settings. See SERIAL LABEL
LOCATION & INFORMATION LISTED / TECH INFO & SERVICE section in
manual for label location, etc.
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TROUBLESHOOTING - CONDENSING SYSTEM (TRAINED SERVICE PROVIDERS ONLY)
TROUBLESHOOTING - CONDENSING SYSTEM (BY TRAINED SERVICE PROVIDERS ONLY)
CONDITION TROUBLESHOOTING
Head Pressure Too High
Check that the condensing coil is not dirty or covered.
Check that condensing fans are working.
Check that refrigerant is not overcharged.
Perform sub-cooling check and verify that no contaminates are in system.
Check that liquid line filter dryer is not plugged.
Check that close-offs are intact (around condensing coil) and that air is not
recirculate.
Head Pressure Too Low
Check that store ambient temperature isn’t above maximum allowed. See
OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS /
WIRING / PLUGS section in this manual.
Check if sight glass is flashing or showing low charge.
Check that suction pressure isn’t too low.
Check that compressor reed valves aren’t bad. Look for high suction/low head
pressure. Perform pump-down.
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TROUBLESHOOTING - EVAPORATOR SYSTEM (TRAINED SERVICE PROVIDERS ONLY)
CONDITION TROUBLESHOOTING
Low Suction Pressure
High Suction Pressure
Check if sight glass is flashing or showing low charge.
Check that expansion valve (TXV) isn’t restricted. Check element charge.
Check that liquid line or filter isn’t restricted. Check that refrigeration lines
and/or hoses are not kinked on either high or low sides.
Check that evaporator fan motors are working.
Check that superheat is between 6 °F to 8 °F.
Check that there is no air recirculation around evaporator coil.
Check that evaporator coil is not iced up.
Check for refrigerant overcharge.
Check that compressor reed valves aren’t bad. Look for high suction/low
head pressure. Perform pump down.
Check that the “cooling load” isn’t high. Product must be pre-chilled before
placing in refrigerated section of case.
Check that case is at least 15-feet from exterior doors, overhead HVAC
vents or any air curtain disruption.
Check that unit is not exposed to direct sunlight via windows or any other
heat source (ovens, fryers, etc.).
Check that superheat adjustment isn’t low.
Check TXV bulb installation
a. Poor thermal contact.
b. Warm location.
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SERIAL LABEL LOCATION & INFORMATION LISTED / TECHNICAL INFO & SERVICE
Serial Label Location & Information Listed / Technical Information & Service
Serial labels are located near the electrical access on your case.
Serial labels contain electrical, temperature & refrigeration information, as well as regulatory
standards to which the case conforms.
For additional technical information and service, see the TECHNICAL SERVICE page in this
manual for instructions on contacting Structural Concepts’ Technical Service Department.
See images below for samples of both refrigerated and non-refrigerated serial labels.
Y
S
A
SA
M
P
L
MPLE
E
N
O
ON
L
L
Y
O
Y
L
NL
LY
Y
A
S
S
----- Sample Serial Label For Refrigerated Case -----
A
MP
SA
S
LE
AM
M
O
LE
P
M
ON
P
LE ON
PLE
Y
L
N
----- Sample Serial Label For Non-Refrigerated Case -----
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Page 23
Read And Save These Instructions - Page 1 of 3
Integrated Electronic
Microprocessor Controller
Programming The Instrument
To Modify The Setpoint
Press and hold the “SET” key for at least 1 second.
Set
Prg
mute
Set
▲
aux
def
▼
▲
aux
3. Quickly press and release the “SET” key again.
Set
To Modify Defrost, Differential, Other Parameters
Prg
mute
2. Confirm by pressing “SET” key.
Set
▲
aux
4. Press “SET” to modify this selected parameter.
Set
▲
aux
Set
7. Press & hold the “Prg” key for at least 5 seconds
Prg
to save changes. This action will also mute the
mute
audible alarm (buzzer) & deactivate the alarm relay.
2. Use arrow keys ▲ ▼ on temperature
def
controller to increase (or decrease) the
▼
setpoint.
Prg
mute
1. Press & hold “Prg” & “SET” keys together
for five (5) seconds; display will flash “0”,
Set
representing password prompt.
Set
▲
aux
3. Press ▲ or ▼ to reach the
def
category to be modified.
▼
Set
▲
aux
5. Increase or decrease the value using
def
the ▲ or ▼ button respectively.
▼
6. Press the “SET” key to temporarily save the new
value and return to the display of the parameter.
Set
Prg
mute
Warning! Save Your Parameter Settings!
1. To store the new parameter values, PRESS and HOLD the “Prg” key for at least 5 seconds.
2. All modifications made to parameters will be lost if you do NOT press a button within 60 seconds. Should
this “timeout” occur, normal operational settings (prior to modifications being made) will resume.
3. If the instrument is switched off before pressing the “Prg” key, all modifications to parameters will be lost.
How To Change Reading From
Fahrenheit (°F) To Celsius (°C)
1. Press and hold “Prg” and “SET” keys
Set
together for at least 5 seconds; display
2. Confirm by pressing “SET” key.
4. Press “SET” to modify this selected
parameter.
will show “0” (password prompt).
def
3. Press ▲ or ▼ until reaching the
parameter “/ 5”.
▼
5. Press ▲ or ▼ to change value to
def
desired setting: “0” for Celsius (°C) or
▼
“1” for Fahrenheit (°F).
6. Press “SET” key to temporarily save the
new value and return to the display of the
parameter.
7. Press & hold “Prg” key for at least 5
seconds to save changes.
will automatically convert to new scale. No
conversion is required.
Note! All values
To Activate Manual Defrost
def
Press and hold “def” key for at least 5 seconds.
▼
To Activate / Deactivate Auxiliary Output
▲
Press and hold the “aux” key for 1 second.
aux
23
Prg
mute
To Reset Any Alarms With Manual
▲
Reset
aux
Press and hold the “Prg” and “aux”
key for at least 1 second.
Oper Manuals - PUB\Templates\Carel Controller\Carel Controller IR33.pub
This data derived from Carel Material: ir33 +030220441 - rel. 2.0 - 01.05.2006
Page 24
Read And Save These Instructions - Page 2 of 3
Integrated Electronic
Microprocessor Controller
User Interface - Display
Summary Table of Alarm and Signals: Display, Buzzer and Relay
reset alarms w/manual reset / reset HACCP alarms / reset temp. monitoring
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Page 25
Read And Save These Instructions - Page 3 of 3
Integrated Electronic
Microprocessor Controller
Summary Table of Operating Parameters
CODE PARAMETER UOM* TYPE MINIMUM MAXIMUM DEFAULT
/5
Select Celsius (°C) or Fahrenheit (°F)
flag C 0 1
/c1 Calibration of probe 1 °C/°F C -20 20
/c2 Calibration of probe 2 °C/°F C -20 20
St Temperature set point °C/°F F r2 r1
rd Control delta °C/°F F 20 0.1
dl Interval between defrosts hours F 0 250
dt1 End defrost temperature, evaporator °C/°F F -50 200
dP1 Maximum defrost duration, evaporator min F 1 250
d6 Display on hold during defrost - C 0 2
For Case
Specific
Defaults
See Serial
Label
Located
Near
Electrical
Access
On Your
Case.
For
Additional
Technical
Information
Call
Structural
Concepts
Technical
Service
Dept. at
1(800)
433.9489
dd Dripping time after defrost min F 0 15
d/1 Display of defrost probe 1 °C/°F F - -
* Unit Of Measure
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Page 26
SCC TECHNICAL SERVICE CONTACT INFORMATION & WARRANTY INFORMATION
STRUCTURAL CONCEPTS CORPORATION TECHNICAL SERVICE
PHONE NUMBER: 1.800.433.9490 or For Your Master Service Agent See
WWW.STRUCTURALCONCEPTS.COM/Contact/Master_Service_Agents.asp
LIMITED WARRANTY
All sales by Structural Concepts Corporation (SCC) are subject to the following limited warranty. “Goods” refers to the product or products being sold by SCC.
Warranty Scope: Warranty is for equipment sold in the United States, Canada, Mexico and Puerto Rico. Equipment sold elsewhere may carry modified warranty.
Warranty; Remedies; Limitations. The limit of liability of SCC toward the exchange cost of the original compressor motor (and/or any other components) is one year parts and
labor. If any Goods are found to be of faulty material or workmanship within one year of the original F.O.B. unit shipment, SCC will, at its option (after inspection by an authorized
representative), replace or pay the reasonable cost of replacement of the faulty Goods. If warranty claim is not made within this one year time period, SCC is not bound to warrant
Goods. A motor-compressor (and/or any other components) replaced during the warranty shall not exceed manufacturer's current established wholesaler’s exchange price. If
replacement motor-compressor (and/or other components) is available via storage facility, parts truck, etc., SCC mandates that readily accessible replacement components be
used toward repair of Goods; in such instances, SCC will replace such equipment (at its own expense) after confirmation of its use/placement on defective unit. SCC shall not be
charged an additional fee, up-charge or expense for such replacement Goods. If SCC is unable to repair or replace the defective Goods, SCC shall issue a credit to the
Purchaser for full or partial purchase price, as SCC shall determine. The replacement or payment in the manner described above shall be the sole and exclusive remedy to
Purchaser for a breach of this warranty. If any Goods are defective or fail to conform to this warranty, SCC will furnish instructions for their disposition. No Goods shall be returned
to SCC without its prior consent.
SCC’s liability for any defect in the Goods shall not exceed the purchase price of the Goods. SCC SHALL HAVE NO LIABILITY TO PURCHASE FOR CONSEQUENTIAL
DAMAGES OF ANY KIND WHATSOEVER, INCLUDING, BUT NOT LIMITED TO, PERSONAL INJURY, PROPERTY DAMAGE, LOST PROFITS, OR OTHER ECONOMIC
INJURY DUE TO ANY DEFECT IN THE GOODS OR ANY BREACH OF SCC, SCC SHALL NOT BE LIABLE TO THE PURCHASER IN TORT FOR ANY NEGLIGENT DESIGN
OR MANUFACTURE OF THE GOODS, OR FOR THE OMISSION OF ANY WARNING THEREFROM.
SCC shall have no obligation or liability under this warranty for claims arising from any other party’s (including Purchaser’s) negligence or misuse of the Goods or environmental
conditions. This warranty does not apply to any claim or damage arising for or cause by improper storage, handling, installation, maintenance, or from fire, flood, accidents,
structural defects, building settlement or movement, acts of God, or other causes beyond SCC’s control.
Except as expressly stated herein, SCC makes no warranty, express, implied, statutory or otherwise as to any parts or goods not manufactured by SCC. SCC shall warrant such
parts or Goods only (I) against such defects, (II) for such periods of time, and (III) with such remedies, as are expressly warranted by the manufacturer of such parts of Goods.
Notwithstanding the foregoing, any warranty with respect to such parts of Goods and any remedies available as a result of a breach thereof shall be subject to all of the
procedures, limitations, and exclusions set forth herein.
THE WARRANTIES HEREIN ARE IN LIEU OF ALL WARRANTIES, EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE. IN PARTICULAR, SCC MAKES NO WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
No representative, agent or dealer of SCC has authority to modify, expand, or extend this Warranty, to waive any of the limitations or exclusions, or to make any different or
additional warranties with respect to Goods.
Period of Limitations. No claim, suit or other proceeding may be brought by Purchaser for any breach of the foregoing warranty or this Agreement by SCC or in any way arising
out of this Agreement or relating to the Goods after one year from the date of the breach. In the interpretation of this limitation on action for a breach by SCC, it is expressly
agreed that there are no warranties of future performance of the goods that would extend that period of limitation herein contained for bringing an action.
Indemnifications. Purchaser agrees to indemnify, hold harmless, and defend SCC if so requested, from any and all liabilities, as defined herein, suffered, or incurred by SCC as
a result of, or in connection with, any act, omission, or use of the Goods by Purchaser, its employees or customers, or any breach of this Agreement by Purchaser. Liabilities
shall include all costs, claims, damages, judgments, and expenses (including reasonable attorney fees and costs).
Remedies of SCC. SCC’s rights and remedies shall be cumulative and may be exercised from time to time. In a proceeding or action relating to the breach of this Agreement by
Purchaser, Purchaser shall reimburse SCC for reasonable costs and attorney’s fees incurred by SCC. No waiver by SCC of any breach of Purchaser shall be effective unless in
writing nor operate as a waiver of any other breach of the same term thereafter. SCC shall not lose any right because it has not exercised it in the past.
Applicable Law. This Agreement is made in Michigan and shall be governed by and interpreted according to Michigan law. Any lawsuit arising out of this Agreement or the Goods
may be handled by a federal or state court whose district includes Muskegon County, Michigan, and Purchaser consents that such court shall have personal jurisdiction over
Purchaser.
Miscellaneous. If any provision of this Agreement is found to be invalid or unenforceable under any law, the provision shall be ineffective to that extent and for the duration of
the illegality, but the remaining provisions shall be unaffected. Purchaser shall not assign any of its rights nor delegate any of this obligations under this Agreement without prior
written of SCC. This Agreement shall be binding upon and inure to the benefit of SCC and Purchaser and each of their legal representatives, successors and assigns.
SCC warrants its products to be free of defects in materials and workmanship under normal use and service for a period of one (1) year from the date of delivery.
This warranty is extended only to the original purchaser for use of the Goods. It does not cover normal wear parts such as plastic tongs, tong holders, tong cables, bag holders,
or acrylic dividers.
General Conditions. All service labor and/or parts charges are subject to approval by SCC. Contact the Customer Service Department in writing or call 231-798-8888.
All claims must contain the following information: (1) model & serial code number of equipment; (2) the date and place of installation; (3) the name and address of the agency
which performed the installation; (4) the date of the equipment failure; and (5) a complete description of the equipment failure and all circumstances relating to that failure.
Once the claim has been determined to be a true warranty claim by SCC’s Customer Service Department, the following procedure will be taken: (1) replacement parts will be sent
at no charge from SCC on a freight prepaid basis; (2) reimbursement for service labor will be paid if the following conditions have been met - (a) prior approval of service agency
was awarded from the Customer Service Department; and (b) an itemized statement of all labor charges incurred is received by the Customer Service Department. The cost of
the service labor reimbursement will be based on straight time rates and reasonable time for the repair of the defect.
If problems occur with any compressor, notify SCC’s Customer Service Department immediately. Any attempt to repair or alter the unit without prior consent from the Customer
Service Department will render any warranty claim null and void. This warranty and protection plan does not apply to any condensing unit or any part thereof which has been
subject to accident, negligence, misuse, or abuse, or which has not been operated in accordance with the manufacturer’s recommendations or if the serial number of the unit has
been altered, defaced, or removed.
One Year Limit of Liability. After SCC's one-year parts and labor warranty on the original F.O.B. unit has expired, SCC is not liable for either the equipment or labor costs of
repairing or replacing the motor compressor, nor any other components that were included in the original F.O.B. unit.
26
SCC Warranty Revision F Date: 1.7.2015
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