QBD HC series User manual

QBD COOLING SYSTEMS INC.
31 Bramsteele Rd, Brampton, Ontario, Canada L6W 3K6
1-800-663-3005 TEL : [phone] FAX: [phone]
QBD.COM [email protected]
Publication: 47-0480-189 B
V2.5 01-2017
R-290 COOLERS (HC SERI ES)
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
CAUTION
READ THIS MANUAL BEFORE INSTALLATION, OPERATION AND/OR
SERVICING YOUR COOLER.

QBD COOLING SYSTEMS INC.
QBD.COM
2
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
Contents
1. DISCLAIMER .......................................................................................................................................................................................... 3
2. GENERAL INSTRUCTIONS............................................................................................................................................................... 5
3. SYMBOLS USED IN THIS MANUAL .............................................................................................................................................. 6
4. INTENDED USE..................................................................................................................................................................................... 7
5. R290 REFRIGERANT.......................................................................................................................................................................... 7
6. FIRST AID MEASURES FOR R-290 ............................................................................................................................................... 8
7. INSPECTION UPON DELIVERY ...................................................................................................................................................... 8
8. VISUAL CHANGES TO CD 3.0 .......................................................................................................................................................... 9
9. ELECTRICAL SAFETY.......................................................................................................................................................................11
10. RECOMMENDED ELECTRICAL PARTS FOR HC COOLERS ..............................................................................................13
11. INSTALLATION...................................................................................................................................................................................14
12. CASTER INSTALLATION.................................................................................................................................................................15
13. SHELF INSTALLATION....................................................................................................................................................................15
14. COLD CONTROL .................................................................................................................................................................................16
15. WIRING DIAGRAM FOR CDxxHC & DCxxHC COOLERS.....................................................................................................18
16. LED LIGHTING ....................................................................................................................................................................................19
17. COOLING DECK REMOVAL, ACCESS AND RE-INSTALL....................................................................................................20
18. HC MODEL DOOR REVERSAL AND ADJUSTMENT .............................................................................................................21
19. PREVENTIVE MAINTENANCE AND CLEANING INSTRUCTIONS .................................................................................23
20. REPLACE VS REPAIR FOR COOLING DECK 3.0 ....................................................................................................................24
21. SAFETY INSTRUCTIONS FOR SERVICE, MAINTENANCE AND HANDLING OF QBD HC COOLER..................24
22.RECOMMENDED SERVICE PROCEDURES FOR HC COOLER ..........................................................................................26
23. GUIDELINES FOR TROUBLE- SHOOTING ...............................................................................................................................28
24. FREQUENTLY ASKED QUESTIONS ............................................................................................................................................30
25. QBD CONTACT INFORMATION ...................................................................................................................................................31

QBD COOLING SYSTEMS INC.
QBD.COM
3
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
1. DISCLAIMER
Please read this manual carefully before
installing, operating and servicing this QBD
R-290 Hydrocarbon cooler. Improper
installation, operation and maintenance of
cooler can cause damage to the cooler, fire,
explosion, severe injuries or death.
This manual must be kept in an accessible
location for easy reference during
installation, operation, maintenance and
service.
QBD neither assumes nor authorizes any
representative or other person to assume
for it any obligation or liability in connection
with the QBD product, its sale, operation or
use other than such as is expressly set forth
herein.
Exclusions from Warranty Coverage
QBD warranty does not cover:
a) Spoilage of products, loss of sales,
incidental, indirect, consequential or
special damages, or any injury, loss,
cost or expense directly or indirectly
sustained in connection with the
Product, its sale, operation or use.
b) without limiting the generality of the
foregoing, spoilage of products, loss of
sales, incidental, indirect, consequential
or special damages, or any injury, loss,
cost or expense arising directly or
indirectly from fungi or fungal
derivatives sustained in connection with
the Product, its sale, operation or use.
c) glass (Door & Side Window) or light
bulb breakage (Fluorescent Tubes or
Light Bulbs), castors, hinges, magnetic
gasket, sliding door wheels, (Header &
Header Lens),door tracks, decals,
(Power Cord, Starters) and parts of
normal wear and tear.
d) any product that has been subject to
misuse, neglect, alteration, tampering,
accident, or to any damage to any
product caused during transportation,
improper installation (except when the
Product is installed by employees of
QBD), flood, fire, water damage,
burglary, terrorism or acts of God.
Limited Warranty
QBD warrants to the original purchaser at
the location of original installation of the
Product that the Product is free from defects
in material or workmanship under normal
use and service for a period as defined in
warranty terms from the date of shipment.
QBD’s obligation under this warranty shall
be limited to repairing or replacing at QBD’s
option, any part of such product, which
proves thus defective and which upon
examination by QBD and to its satisfaction
to be defective shall be determined to be
defective. Notwithstanding this assumption

QBD COOLING SYSTEMS INC.
QBD.COM
4
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
of responsibility by QBD, QBD’s
responsibility for the costs and labour
incurred in repairing or replacing the
Product shall not exceed the sale price of
the Product. The labor warranty shall
include standard straight time labor charges
only and reasonable travel time, as
determined by QBD.
For CD Series coolers, QBD reserves the
right to exchange the cooling deck, and the
defective cooling deck must be returned.
Labor charges to remove and install the
cooling deck, is not covered by warranty.
! CAUTION
1. The cooler contains flammable
refrigerant R-290 (Propane). To
confirm refrigerant type, please refer
serial label inside cabinet.
2. The cooler requires adequate ventilation
at all times during installation, operation
and servicing.
3. In order to carry out service and repair
on R-290 COOLER the service
personnel must be qualified and
trained to handle flammable
refrigerants. This includes knowledge
on tools, transportation of the
compressor and refrigerant, relevant
regulations and safety precautions.
Also, service must be performed in a
well-ventilated area and in compliance
with the local/ regional /national safety
codes.
4. Conversions from refrigerant R134A
to R-290 is NOT allowed. Using R-290
in a system, which is not approved and
does not have symbols indicating use of
R-290, may cause fire, explosion,
severe injury or death.
5. As per the EPA, R-290 is prohibited for
retrofitting in existing hydrofluorocarbon
(HFC) refrigerant systems.
6. Only a maximum 150 grams (5.3 oz.) of
R-290 charge is allowed in any HC
based beverage cooler refrigeration
system. (Ref: UL#471). However you
are advised to refer serial plate to
check R-290 charge amount in your
cooler. Refrigerant overcharge may
lead to fire, explosion, severe injury
or death.
7. EPA has approved the venting of
Hydrocarbon refrigerant into the
atmosphere. However, it is
recommended that you observe venting
requirements in your jurisdiction. Use
extreme precaution while venting- refer
paragraph 9 on page 26 for more
instructions on safe venting practices.

QBD COOLING SYSTEMS INC.
QBD.COM
5
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
8. R-290 cooling deck must be installed
in R-290 certified cabinet only. Only
cabinets with serial plate indicating
R-290 should be used for R-290
based refrigeration system. R-290
installation on a non-approved cabinet
may result into fire, explosion, severe
injury or death.
9. Check for refrigerant leak before
connecting or disconnecting power to
cooler.
10. Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this cooler.
11. Smoking is strictly prohibited near
coolers with R-290 refrigerant.
12. Ensure the cooler, refrigerant, oil and/or
other component(s) are disposed in
accordance with local and federal
regulations.
13. To maintain average product
temperature at 3.3°C (38°F), follow
temperature setting as indicated on
rating plate inside the cooler. Any
change in setting could result in poor
performance and/or component(s)
failure.
14. QBD will not be responsible for poor
performance, component failure(s),
damages or losses due to improper
installation of the cooling deck, electrical
components, cooler itself, and/or use of
non-OEM parts.
15. Use of NON OEM parts is strictly
prohibited. Use of non OEM parts will
not only void the warranty but may also
lead to a major fire or explosion causing
property damage, severe personal injury
or even death.
All repairs must be performed by a
trained and authorized service
technician and at a safe environment.
2. GENERAL INSTRUCTIONS
Unsafe use of the cooler other than
intended by QBD can result in death,
serious injury, property damage and /or
cooler failure.
This manual contains important information
about cooler safety and maintenance.
READ and UNDERSTAND this manual
before operating the cooler. If you have any
questions, please call QBD (Contact
number (905)-459-0709) for clarification.
This manual must remain near the cooler
and should be available to all users and
service technicians.
All specifications are subject to change
without notice.

QBD COOLING SYSTEMS INC.
QBD.COM
6
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
3. SYMBOLS USED IN THIS
MANUAL
This sign will indicate that
you are handling a
flammable substance that
may be present in the
surrounding environment.
WARNING Indicates
potentially hazardous
situation which, if not
avoided, may result in
injury, property damage
and/or cooler failure.
DANGER Indicates
potentially hazardous
situation which, if ignored,
could result in death or
serious injury, property
damage and/or cooler
failure.
!
CAUTION emphasise
information which may
cause cooler failure or
environmental harm.
This label is used to indicate
that the flammable
refrigerant (R-290) is
present within the
application and service
equipment
Images that indicate
something that should be
strictly avoided
Specific bans!
Instructions for first aid!
Fire protection!

QBD COOLING SYSTEMS INC.
QBD.COM
7
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
4. INTENDED USE
QBD`s coolers are designed for storage of
beverage products and/or commercial
merchandise.
Storage of pharmaceutical products (unless
it is an RX-series cooler), perishable food,
scientific material or temperature sensitive
product in the cooler is NOT
RECOMMENDED.
QBD warranty does not cover spoilage of
products, loss of sales, incidental, indirect,
consequential or special damages, or any
injury, loss, cost or expense directly or
indirectly sustained in connection with the
Product, its sale, operation or use.
This cooler is NOT intended for
outdoor use or to be subjected to
direct sunlight, dampness, high dust
levels, extreme heat and/or cold
temperature. Ensure adequate
ventilation around the cooler.
It should not be subjected to
temperature more than 90°F and relative
humidity more than 65%.
5. R290 REFRIGERANT
This cooler contains R-290
refrigerant. It is highly
flammable and is heavier
than air and the
concentration will always
be highest at floor level.
Odor:
Odorless
Chemical formula:
C3H8
Appearance:
Liquefied
compressed gas
Boiling Temp.:
-42°C (460mm/Hg)
Flash point temp:
−104 °C
Self-ignition
temperature :
470°C (Under 760
mm/Hg)
Lower Explosive
Limit (LEL) :
2.30%
Upper Explosive
Limit (UEL) :
9.50%
Density:
580 Kg/m3 (25°C)

QBD COOLING SYSTEMS INC.
QBD.COM
8
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
6. FIRST AID MEASURES FOR R-
290
Material Safety Data Sheet
(MSDS) of R-290 (Propane)
is required to be available to
all users and employees at
the installed sites. It is
mandatory for users to refer to MSDS for
complete understanding of hazards and
take necessary precautions.
Ingestion
DO NOT induce vomiting unless directed to
do so by medical personnel. Never provide
anything by mouth to an unconscious
person. Get medical attention if symptoms
persist.
Skin Contact
In case of contact, immediately flush skin
with plenty of water. Remove contaminated
clothing and shoes. Wash clothing before
reuse. Thoroughly clean shoes before reuse.
Get medical attention.
Eyes
Immediately flush eyes with plenty of water
for at least 15min. Get medical attention.
Frostbite
Try to warm up the frozen tissues and seek
medical attention.
Inhalation
Immediately move to area with fresh air. If
breathing has stopped, give artificial
respiration. If breathing is difficult, qualified
personnel may give oxygen. Get medical
attention.
Refer to updated MSDS for more details.
7. INSPECTION UPON DELIVERY
Your cooler contains R-290 refrigerant. For
safety, examine all packaging material for
damage when received. Damage to external
packaging may have resulted in unit
damage.
If you received a damaged cooler, refuse
the shipment and immediately contact the
carrier to report the incident.
Unpack the cooler. Check cooler for all
accessories and components, including
legs, casters (if applicable) and shelves.
All goods are shipped at the customer’s risk.
Return of goods to the factory must have
the authorized approval from QBD.
No returns will be accepted after 10 days.
Any shortage claims must be made within 5
days of receiving the goods.
If the cooler is tilted during
transportation/relocation please allow it to
sit for 2 hours in upright position before
connecting to power source. Ensure the
cooler is not damaged during transportation.
Follow all local/regional codes
for transportation or relocation
of hydrocarbon coolers.

QBD COOLING SYSTEMS INC.
QBD.COM
9
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
8. VISUAL CHANGES TO CD 3.0
Technicians are responsible to ensure these red sleeves are
always present on access points as per UL#471 requirement.

QBD COOLING SYSTEMS INC.
QBD.COM
10
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
All QBD Hydrocarbon coolers are provided with multiple
identification and hazard labels. These can be located
inside the cabinet and other visible surfaces of the
cooler. Please contact QBD technical support for more
information.

QBD COOLING SYSTEMS INC.
QBD.COM
11
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
9. ELECTRICAL SAFETY
The cooler must always be plugged into its
own dedicated individual electrical circuit,
which has a voltage rating same as
mentioned on the serial plate, and is in
compliance with the Canadian Electrical
Code, Part I, the National Electrical Code or
the local Electrical Code.
Ensure that a dedicated 3-prong grounded
electrical receptacle is available at the
intended location of the cooler.
Ensure that the electrical branch circuit of
the fixed wiring to the dedicated receptacle
is protected with a fuse or a circuit breaker.
For personal safety, this appliance must be
effectively grounded at all times. The power
cord of this cooler is equipped with a three-
prong (grounding) plug which mates with a
standard three-prong (grounding) wall outlet
(receptacle) to minimize the possibility of
electric shock hazard from this cooler.
Have the wall outlet and circuit checked by
a qualified electrician to make sure the
outlet is effectively grounded. If only an old
two-prong wall outlet is available, it is the
user’s responsibility and obligation to have it
replaced with an effectively grounded three-
prong wall outlet for protection against
potential electrical shock and fire hazard.
DO NOT USE EXTENSION CORDS,
POWER BARS, AND / OR WIRING
DEVICE ADAPTERS TO POWER THE
COOLER.
Inspect the cooler power supply cord for any
damage prior to use. Do not use a cord that
is damaged or have crack signs. If power
cord is damaged, it must be replaced with
QBD supplied OEM part only. Do not alter
impact or apply pressure on power cord.
Don’t access electrical parts & mechanically
moving parts without authorization and this
should be done by a qualified service
technician only.

QBD COOLING SYSTEMS INC.
QBD.COM
12
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
CAUTION
Always check for Hydrocarbon leak
(using a certified hydrocarbon leak
detector) before plugging / unplugging/
or switching ON-OFF power supply.
CAUTION
When working on the equipment or
parts thereof, the system has to be de-
energized (by master switch, circuit
breaker or separate cut-out) and
unplug power cord, such that it cannot
be restarted accidentally. Do not
reconnect the system to the electric
circuit until all work is completed and all
connections are tested.
CAUTION
All units must be powered at their
nominal operating voltages at all times.
The voltage should be within 10% of the
nameplate voltage rating, as overvoltage
or under voltage could damage the cooler.
QBD is not responsible for the repair or
replacement of failed or damaged
components resulting from electrical
power failure, incorrect supply voltage,
low voltage, or unstable supply voltage.
Ensure that the power quality (i.e. the
voltage and current harmonics) are
within the acceptable industry tolerance.
CAUTION
Please do not spray or immerse any
electrical component with water and/or
chemicals. Doing so may will void all
warranties and may lead to fire,
explosion, severe injury or death.
Always use QBD supplied OEM
components only which are approved and
certified to be used in coolers using R290.
Consult QBD technical service (Contact
number (905)-459-0709) for details on
wiring diagram, or other electrical
components.

QBD COOLING SYSTEMS INC.
QBD.COM
13
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
10. ELECTRICAL PARTS FOR HC COOLERS
Always use QBD supplied OEM parts only. Use of non-OEM parts will not only
void the warranty but may also lead to a fire, explosion, serious injury or death.
Below is just to demonstrate some examples of difference in parts used in non R-290 vs
R-290 systems.
CONTROLLER
Please contact QBD Technical support
for more information on controller for your
particular cooler.
ECM MOTORS
UL Approved / Very High
Efficiency / Brushless / Wider
operating range
ELECTRICAL CONNECTORS
USE OEM PARTS ONLY
COMPRESSOR
RELAY/OVERLOAD/
CAPACITOR
USE OEM PARTS ONLY
LED POWER SUPPLY
Approved for Hydrocarbon / Class
2 Type Power supply: 12V DC /
High Energy Efficiency
LED+ Lighting
up-to 50% more product
illumination

QBD COOLING SYSTEMS INC.
QBD.COM
14
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
11. INSTALLATION
LOCATION & LEVELING—INDOORS
ONLY!
-Cooler must be leveled front to back and
side to side to ensure optimum
performance. Use leg -adjust for proper
leveling.
-Improper leveling may cause cooler
door(s) to not close properly. This can
cause the evaporator coil to accumulate
frost and/or drain pan to overflow.
EXTERNAL AND INTERNAL
CLEARANCES, SHELF POSITION AND
DOOR SUPPORT BRACKETS
-Always maintain the following
EXTERNAL clearances for ease of
installation, door opening and proper air
circulation:
oTop .............….........2”
oHinge Side............. 1 1/4”
oNon Hinge Side...... 1/2”
oBack...................... 3”
-Maintain a clearance of at least 2 feet in
front of the grill to ensure free air flow
from the refrigeration unit.
-Cooler is designed for freestanding
installation only. It should not be
recessed or built-in.
-Don’t locate cooler in close proximity to
high heat appliances such as fryers,
heating ranges and / or heating ducts.
-Minimum INTERNAL clearances are
required for adequate air circulation
inside the cooler. Maintain internal
clearances between the beverages and
the cooler walls and door(s) as follows :
-Clearance
-Inches
-Side wall
-1/2
-Rear wall
-1/2
-Front glass
door and
product
-1
-MUST remove the door support
bracket(s) before installation.
(applicable for specific models only)
-ALWAYS use the door support
bracket(s) during transport and/or
changing locations.

QBD COOLING SYSTEMS INC.
QBD.COM
15
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
12. CASTER INSTALLATION
The cooler has a new design for caster
installation. It does not require a transfer
plate anymore.
Nut insert (to fit casters) is flush with the
bottom surface of base channel. This design
will allow caster top in firm contact with
cooler base channel. Hence, transfer plate
can be avoided.
No Transfer plate required as caster top is
directly in contact with the vase channel
plate. Shim plate may be required for
leveling of cooler.
IMPORTANT NOTE:
-QBD does not offer casters for PC8**
/PC8L** models Do not use any third
party casters kits. For safety and
stability of the cooler, only use the
supplier levelling legs.
-Don’t adjust the levelling legs beyond a
Maximum Height of 1/2`` (1/2 inch) on
PC8xx coolers.
-DC6/DC7 models have option for
adjustable leg too.
13. SHELF INSTALLATION
-Cooler shelves (flat or gravity) and a
bag containing shelf support clips are
packed at the factory inside the unit.
-In CD HC models (except CD10/12/20
HC), a bottom shelf must be installed on
top of the base step (return air duct).
-Improper shelf clip installation may
cause shelf and/or product to fall which
could result in personal injury or
damage to the cooler.
-Do NOT place solid packages on bottom
shelf to avoid poor cooling performance.

QBD COOLING SYSTEMS INC.
QBD.COM
16
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
-Don’t overload the shelves. The cooler
is designed to use all the shelves
provided. Install in equally spaced
configuration. If fewer shelves or a
different configuration is required,
contact QBD to ensure that shelf
overloading will not occur.
-Store products as evenly as possible
inside the cabinet to maintain uniform
product temperature.
14. COLD CONTROL
Different cold controls are being used in
different models of HC coolers. All these are
certified for use in an HC unit. Please
contact QBD technical support to know
more about cold control for your unit.
All cooling deck based HC coolers are
equipped with customized CAREL cold
control (QBD Part # 47-0520-255). The
recommended setting is at #5 which will
allow the cooler to operate between 38-
42°F. Temperature probe should be in the
return air section.
This controller features voltage protection,
automatic defrost and energy saving logics.
DISPLAY INDICATORS
This indicates the Evaporator Motor(s)
is/are running but the Compressor is off. On
initial power up, there is an intelligent delay
for protection of the Compressor. Power to
the Compressor will initiate after one (1)
minute.
This is the typical look of the CAREL
controller while in use. "USE" indicates the
unit is in working order. The symbols to the
left of "USE" indicate that the Compressor
and Evaporator Motor(s) are both running. If
the Compressor Indicator is blinking, the
compressor is under "Time Protection".
DEFROST CYCLE
Indication that unit is in DEFROST cycle.
Evaporator Fan Motor(s) is/are ON for 4
minutes and OFF for 1 minute during this
cycle. To manually initiate the defrost cycle,
push and hold the "WARMER" button for 3
seconds. The controller will automatically
come out of DEFROST after 20 minutes. To
manually end the defrost cycle, push the
"WARMER" button for 3 seconds.
Second picture is the indication that unit is
in DEFROST MODE and Evaporator

QBD COOLING SYSTEMS INC.
QBD.COM
17
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
Motor(s) will be running. There is an
automatic defrost cycle of 20 minutes every
6 hours.
This is the indication that the cold control is
"OFF" and power to the Compressor and
condenser fan motor has been disabled.
Power to Evaporator Motor(s) is still live. To
manually turn the controller "OFF", push
and hold the "COLDER" (upper) key for 3
seconds. To turn back "ON", push and hold
the "COLDER" (upper) button for 3 seconds
This is the indication that an ERROR has
occurred with the probe. Either the probe is
faulty or it has been disconnected from the
controller.
CHANGE THE TEMPERATURE SETTING
Check controller temperature setting.
Proper setting should be #5 on CAREL
Controllers. Push the "WRENCH" button for
3 seconds to get to the settings mode. Use
the "COLDER" or "WARMER" buttons to
adjust to the desired setting. To save the
new setting, you MUST push and hold the
"WRENCH" button for 3 seconds or until the
controller returns to "USE".
-QBD doesn't recommend any
temperature setting change without prior
authorization.
-Cold control is set at #5 for beverage
storage. Cooler maintains average
product temperature of 3.3°C (38°F).
-Cold control follows an automatic
defrost cycle every six hours for 20 min.
-Evaporator fan follows a defined logic (4
minutes ON and 1 minute OFF) during
compressor OFF cycle and defrost cycle
for optimum energy conservation.
Other HC coolers have mechanical (QBD
Part # 47-0430-257, 47-0430-258) or
electronic Danfoss cold control (QBD
Part # 47-0430-206).
Please contact QBD technical support
(phone number 905-459-0709) to confirm
the right controller for your cooler.
The temperature control dial has settings
from 1 to 9 plus “OFF” or “O”.
1 is the warmest setting.
9 is the coldest setting.
Initially set the temperature to the
recommended setting shown on the cabinet
serial-name plate, this setting is for ambient
condition of 75º F (±2°F). For every 5
degree rises in ambient temperature the

QBD COOLING SYSTEMS INC.
QBD.COM
18
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
control setting should be moved 1 digit warmer (backwards).
After using the cooler for 24 hours, adjust
the temperature control to the setting that is
best suited for your needs.
NOTE : If the cooler is unplugged or turned
off, you must allow 5 minutes before starting
it or plugging it back in. If you attempt to
restart it in less than 5 minutes, it may not
restart and it may damage the compressor
and VOID WARRANTY. Turning the
temperature control dial to “OFF” or “O”
stops cooling but does not shut off power to
the cooler.
USE OF NON-QBD REPLACEMENT PARTS WILL VOID THE WARRANTY. PLEASE
CONTACT QBD (Tel: [phone]) TO CONFIRM MOST CURRENT PART NUMBERS
15. WIRING DIAGRAM FOR CDxxHC & DCxxHC COOLERS
Ref No#47-0040-532

QBD COOLING SYSTEMS INC.
QBD.COM
19
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
Ref No#47-0040-533
Please call QBD service for additional information if required. Check for refrigerant leak before
connecting or disconnecting power to unit.
16. LED LIGHTING
-All HC coolers are installed with customized LED+ lighting for maximum product
illumination, high energy efficiency and convenient replacement option.
-Check for HC leak prior to disconnecting power. Do not use lights or light
connectors, which are not UL certified for R-290 coolers. This may also lead to a
major fire, explosion, severe injury or death..

QBD COOLING SYSTEMS INC.
QBD.COM
20
-Always use QBD supplied OEM parts only. Use of non-OEM
parts will not only void the warranty but may also lead to a fire,
explosion, serious injury or death.
------------------------------------------------------------------------------------------
-Only trained and certified technician, for Hydrocarbon
systems, should service these coolers.
------------------------------------------------------------------------------------------
-Use extreme caution and follow all local/regional codes for
transportation or relocation of Hydrocarbon coolers.
17. COOLING DECK REMOVAL, ACCESS AND RE-INSTALL
FOLLOW STEPS BELOW FOR COOLING DECK REMOVAL & RE-INSTALLATION