Hussmann microSC VRL1B User manual

VRL
Low Temperature Self Contained
Glass Door Merchandisers
with R-290 Refrigerant
Installation &
Operation Manual
Spanish 3034045
®
Æ
MANUAL - SELF CONTAINED R290 VRL I/O
WARNINGS:
If the information in these instructions are not followed
exactly, a fire or explosion may result, causing property
damage, personal injury or death.
Installation and service must be performed by a qualified
installer or service agency.
READ THE ENTIRE MANUAL BEFORE
INSTALLING OR USING THIS EQUIPMENT.
The unit uses R-290 gas as the refrigerant. R-290 is
flammable and heavier than air. It collects first in low
areas but can be circulated by the fans. If propane gas
is present or even suspected, do not allow untrained
personnel to attempt to find the cause. The propane
gas used in the unit has no odor. The lack of smell does
not indicate a lack of escaped gas. If a leak is detected,
immediately evacuate all persons from the store, and
contact the local fire department to advise them that
a propane leak has occurred. Do not let any persons
back into the store until the qualified service technician
has arrived and that technician advises that it is safe to
return to the store. No open flames, cigarettes or other
possible sources of ignition should be used inside or in
the vicinity of the units.
FAILURETOABIDE BYTHIS WARNING COULD
RESULT IN AN EXPLOSION, DEATH, INJURYAND
PROPERTY DAMAGE.
IMPORTANT
Keep in store for future reference!
P/N 3034040_H
June 2021

2InstallatIon
P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
BEFORE YOU BEGIN
Read these instructions completely and carefully.
PERSONAL PROTECTION EQUIPMENT (PPE)
Personal Protection Equipment (PPE) is required whenever installing or servicing this
equipment. Always wear safety glasses, gloves, protective boots or shoes, long pants, and a
long-sleeve shirt.
1. If the information in these instructions are not followed exactly, a fire or explosion may result, causing property damage, person-
al injury or death.
2. Installation and service must be performed by a qualified installer or service agency.
3. This unit is designed only for use with R-290 gas as the designated refrigerant.
THE REFRIGERANT LOOP IS SEALED. ONLY A QUALIFIED TECHNICIAN SHOULD ATTEMPT TO SERVICE!
• Propane is flammable and heavier than air.
• It collects first in the low areas but can be circulated by the fans.
• If R-290 (propane) is present or even suspected, do not allow untrained personnel to attempt to find the cause.
• The propane gas used in the unit has no odor.
• The lack of smell does not indicate a lack of escaped gas.
• If a leak is detected, immediately evacuate all persons from the store, and contact the local fire department to advise them that a
pro pane leak has occurred.
• Do not let any persons back into the store until the qualified service technician has arrived and that technician advises that it is
safe to return to the store.
• A hand-held propane leak detector (“sniffer”) shall be used before any repair and/or maintenance.
• No open flames, cigarettes or other possible sources of ignition should be used inside the building where the units are located
until the qualified service technician and/or local fire department determines that all propane has been cleared from the area and
from the refrigeration systems.
• Component parts are designed for propane and non-incendive and non-sparking. Component parts shall only be replaced with
identical repair parts.
FAILURE TO ABIDE BY THIS WARNING COULD RESULT INAN EXPLOSION, DEATH, INJURY AND PROPERTY DAMAGE.
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com

P/N 3034040_H 3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. VRL Merchandisers
IMPORTANT
KEEP IN STORE FOR FUTURE REFERENCE
Quality that sets industry standards!
12999 St. Charles Rock Road • Bridgeton, MO 63044-2483
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900
www.hussmann.com
© 2021 Hussmann Corporation
Merchandiser must operate for 24 hours
before loading product!
Regularly check merchandiser temperatures.
Do not break the cold chain. Keep products
in freezer before loading into merchandiser.
These merchandisers are designed
for only pre-frozen products.
AT TENTION
Merchandiser must operate for 24 hours
before loading product!
Regularly check merchandiser temperatures.
Do not break the cold chain. Keep products in
freezer before loading into merchandiser.
These merchandisers are designed
for only pre-frozen products.

4InstallatIon
P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
REVISION HISTORY
REVISION H
Updated the wiring diagrams.
REVISION G
Updated type & clearance, Page 5; Casters, Page 9; Checklist, Page 12; Physical & Electrical Data,
Page 42; Updated condensing unit drawings and wiring diagrams
REVISION F
Added new product warnings, Page 7
REVISION E
Added recovering refrigerant steps
REVISION D
Removed Fan Key Page; Updated parts list and diagrams; added California Warning.
REVISION C
Changed Added VRL 1-door cases
Changed info about door torque.
REVISION B
Changed NEMA Plug - Page 13
ORIGINAL ISSUE — JULY 2017
* * * * * * * * * * * * * * * * * * * * * * * * * *
ANSI Z535.5 DEFINITIONS
• DANGER – Indicate[s] a hazardous
situation which, if not avoided, will
result in death or serious injury.
• WARNING –Indicate[s] a hazardous
situation which, if not avoided, could
result in death or serious injury.
• CAUTION –Indicate[s] a hazardous
situation which, if not avoided, could
result in minor or moderate injury.
• NOTICE – Not related to personal injury –
Indicates[s] situations, which if not avoided,
could result in damage to equipment.
Do NOT remove shipping crate until the
merchandiser is positioned
for installation.
Excessive ambient conditions may
cause condensation and therefore
sweating of doors. Facility operators
should monitor doors and oor
conditions to ensure safety of persons.
Adjust closing torque by turning the bottom
hinge pin in the direction the door closes.
Use a 1/2 inch (13 mm) wrench, and turn
the hinge pin until the door closes on its own.
Usually it takes two clicks or a half turn.
AT TENTION
This warning does not mean that Hussmann products
will cause cancer or reproductive harm, or is in
violation of any product-safety standards or
requirements. As clarified by the California State
government, Proposition 65 can be considered more of
a‘right to know’ law than a pure product safetylaw.
When used as designed, Hussmann believes that our
products are notharmful. We provide the Proposition
65 warning to stay in compliance with California State
law. It is your responsibility to provide accurate
Proposition 65 warning labels to your customers when
necessary. For more information on Proposition 65,
please visit the California State government website.
August 31, 2018
Case ventilation openings must be clear
of any obstructions. Do not damage the
refrigerant circuit.

P/N 3034040_H 5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. VRL Merchandisers
NSF LISTING
These merchandisers are manufactured to meet
ANSI / UL 471 standard requirements for
safety. Proper installation is required to maintain
this listing. Near the serial plate, each case
carries a label identifying the type of conditions
for which the merchandiser was tested.
ANSI/NSF-7 Type II – Display
Refrigerator / Freezer Intended for
80°F / 55% RH Ambient Application
ANSI/NSF-7 – Display Refrigerator
Intended for Bulk Produce
FEDERAL / STATE REGULATION
These merchandisers, at the time they are
manufactured, meet all federal and state /
provincial regulations.
HUSSMANN PRODUCT CONTROL
The serial number and shipping date of all
equipment is recorded in Hussmann’s files
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. This is
to ensure the customer is provided with the
correct parts.
SHIPPING DAMAGE
All equipment should be thoroughly examined
for shipping damage before and during
unloading. This equipment has been carefully
inspected at our factory. Any claim for loss
or damage must be made to the carrier. The
carrier will provide any necessary inspection
reports and/or claim forms.
Apparent Loss or Damage
If there is an obvious loss or damage, it must
be noted on the freight bill or express receipt
and signed by the carrier’s agent; otherwise,
carrier may refuse claim.
Concealed Loss or Damage
When loss or damage is not apparent until
after equipment is uncrated, retain all packing
materials and submit a written response to the
carrier for inspection within 15 days.
LOCATION
These merchandisers are designed for
displaying products in air conditioned stores
where temperature is maintained at or below
the ANSI / NSF-7 specified level and relative
humidity is maintained at or below 55%.
Placing refrigerated merchandisers in direct
sunlight, near hot tables or near other heat
sources could impair their efficiency. Like
other merchandisers, these merchandisers
are sensitive to air disturbances. Air currents
passing around merchandisers will seriously
impair their operation. Do NOT allow air
conditioning, electric fans, open doors or
windows, etc. to create air currents around
the merchandiser. VRL units take in air and
exhaust air through the front of the case. A
1-inch clearance space on top, at back or either
side of the case.
Recommended operating ambient
temperature is between
60°F (15.6°C) to 80°F (26.7°C).
Maximum relative humidity is 55%.
INSTALLATION

6InstallatIon
P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
SELF CONTAINED (LOCATION)
Product should always be maintained at
proper temperature. This means that from the
time the product is received, through storage,
preparation and display, the temperature of
the product must be controlled to maximize
the life of the product.
Besure to position self contained
merchandisers properly.
VRL models have vented base panels to allow
air circulation through the condensing unit.
Allow for a minimum 36 in. clearance in the
front. Blocking or restricting air flow will
adversely affect performance and may damage
the refrigeration system.
36 in.
36 in.
36 in.
Air
Exhaust
Air
Exhaust
Front Rear
Zero Clearance
at Sides and Rear
36 in. Clearance
at Front
(Plan View)
Front Rear
Zero Clearance
at Sides and Rear
36 in. Clearance
at Front
(Plan View)
Front Rear
Zero Clearance
at Sides and Rear
36 in. Clearance
at Front
(Plan View)
Air Exhaust
Air Exhaust
Air Exhaust
Air Intake
Air Intake
FUk YUOUI
VRL2BVRL2B
36 in.
Air Intake
Front Rear
(Plan View)
Air Exhaust
1-in. Clearance at
Sides and Rear
36 in. Clearance at
Front
36 in. 36 in.
36 in.
Air
Exhaust
Air
Exhaust
Front Rear
Zero Clearance
at Sides and Rear
36 in. Clearance
at Front
(Plan View)
Front Rear
Zero Clearance
at Sides and Rear
36 in. Clearance
at Front
(Plan View)
Front Rear
Zero Clearance
at Sides and Rear
36 in. Clearance
at Front
(Plan View)
Air Exhaust
Air Exhaust
Air Exhaust
Air Intake
Air Intake
FUk YUOUI
VRL3BVRL3B
Air Exhaust
36 in.
Air Intake
Front Rear
(Plan View)
Air Exhaust
1-in. Clearance at
Sides and Rear
36 in. Clearance at
Front
36 in.
36 in.
36 in.
Air
Exhaust
Air
Exhaust
Front Rear
Zero Clearance
at Sides and Rear
36 in. Clearance
at Front
(Plan View)
Front Rear
Zero Clearance
at Sides and Rear
36 in. Clearance
at Front
(Plan View)
Front Rear
Zero Clearance
at Sides and Rear
36 in. Clearance
at Front
(Plan View)
Air Exhaust
Air Exhaust
Air Exhaust
Air Intake
Air Intake
FUk YUOUI
VRL1BVRL1B
36 in.
Air Intake
Front Rear
(Plan View)
Air Exhaust
1 in. Clearance at
Sides and Rear
36 in. Clearance at
Front

P/N 3034040_H 7
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. VRL Merchandisers
UNLOADING
Unloading from Trailer:
Lever Bar (also known as a Mule, Johnson
Bar, J-Bar, Lever Dolly, or Pry Lever)
Move the merchandiser as close as possible
to its permanent location and remove
all packaging. Check for damage before
discarding packaging. Remove all separately
packed accessories such as kits and shelves.
Improper handling may cause damage to
the merchandiser when unloading. To avoid
damage:
1. Do not drag the merchandiser out of the
trailer. Use a Johnson bar (Mule).
2. Use a forklift or dolly to remove the
merchandiser from the trailer.
EXTERIOR LOADING
Do NOT walk on top of the merchandiser or
damage to the merchandisers and serious
personal injury could occur.
merchandisers are not structurally
designed to support excessive external
loading such as the weight of a person.
Do not place heavy objects on the
merchandiser.
SHIPPING SKID
Each merchandiser is shipped on a skid to
protect the merchandiser’s base and to make
positioning the case easier.
Remove the top of the crate and detach walls
from each other (if applicable). Lift crate from
the skid. Unscrew the case from the skid. The
merchandiser can now be lifted off the crate
skid. Lift only at base of skid! Remove any
braces and/or skids attached (blanket wrapped
merchandiser may have skids).
DO NOT TILT MERCHANDISER ON ITS
SIDE OR END WHEN REMOVING SKID.
Once the skid is removed, the merchandiser
must be lifted —NOT PUSHED— to
reposition. To remove the skid, remove screws
attaching skid to the merchandiser.
Check floor where merchandisers are to be set
to if it is a level area. Determine the highest
part of the floor.
Do NOT stand or walk on top of
merchandiser. Do not store items or
ammable materials atop the unit.
Case ventilation openings must be clear of any
obstructions. Do not damage the refrigerant
circuit.
Do not use mechanical devices or other means
to accelerate the defrosting process.
Do not use electrical appliances inside the food
storage compartments of the case.

8InstallatIon
P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
MODEL DESCRIPTION
VRL merchandisers are low temperature self-
contained cabinets, designed for pre-packaged
frozen food or products that require frozen
temperatures for conservation.
Design Features:
- Contemporary styling places maximum
attention on merchandising
- All VRL merchandisers have the same access
panel design for commonality between
merchandisers
- Self-closing Innovator doors. Positive seal,
torsion type closure system
- Triple-pane thermal insulated glass door
assemblies
- Magnetic door gaskets of one-piece
construction, removable without tools for
ease of cleaning
- Merchandiser can be placed against wall -
no air gap is required behind the case
- Digital display in center of case air grille
CABINET LEVELING
This merchandiser must be installed level
(from back to front, and side to side) to allow
maximum draining of the condensate water as
well as proper door alignment and operation.
Choose a level area to install case.
VRL2B and VRL3B also have an adjustable
leg leveler at center front and back. Turn the
leg levelers clockwise to add length to each leg
for leveling.
Adjustable
Leg Levelers
Adjustable
Leg Levelers

P/N 3034040_H 9
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. VRL Merchandisers
CASTERS
When optional casters are used, screw them
tight to the merchandiser base. Once in final
position, lock each caster. This option is a
ship loose kit. As a standard offering, this
merchandiser is fabricated with hockey puck
style leveler.
FIELD REQUIRED TOOLS
Pry (J) bar to lift up case to remove leg levelers.
Make sure the adjustable wrench used has a
minimum opening of 2 5/16".
83.19"

10 InstallatIon
P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
SHELF INSTALLATION
After the cabinet is leveled, the shelves may
be installed. Wire shelves are adjustable.
Shelf spacing can be adjusted by positioning
the shelf clips according to individual loading
requirements.
VRL merchandisers have four movable wire
shelves and one bottom wire shelf, per door
as a standard option. Extra shelves can be
ordered as optional kits.
LAMPS
This merchandiser has a light switch inside of
the left door frame. The switch controls the
display lighting and interior lighting.
Shelves
Bottom Shelf
Light Switch