Leer CR150 User manual

EQUIPMENT INFORMATION SHEET CONCOURSE
Link to PDF file
UTILITY INFORMATION
EXT NEW I F C ELECTRICAL MECHANICAL: SUPPLY MECHANICAL: WASTE
CC104.B CR 150 Ice storage cabinet- 96" x 48"- with
Leveler kit (added 2019)
Leer VND VND EC Delivered and installed by vendor. See Manuf.
Specifications
Date created: 4/18/2016
Date revised: 2/5/2019
Cell library: layout_support areas
Cell name(s): SACC104.B
Special CAD Instructions:
ITEM
NUMBER: CC104.B
REMARKS
EQUIPMENT CELL INFORMATION
Back to index
Notes and
Abbreviations
ITEM #
QTY
MODEL # ITEM DESCRIPTION MANUFACTURER
CONTRACTOR
INFORMATION

CORNER REFRIGERATION UNITS:
Model: CR150 Automatic Defrost
Compressor: ¾ HP
Refrigerant Charge: 17.5 ounces of R404a
Electrical Rating: 12.5 Amps
Capacity: Approximately 600 Seven-Pound Bags
Cabinet Dimensions: 96” Wide x 48” Deep x 75” Tall (there is
a 1” high rail under the cabinet so the
overall height is 76” and doors add 3” to
depth)
Model: CR115 Automatic Defrost
Compressor: ¾ HP
Refrigerant Charge: 17.5 ounces of R404a
Electrical Rating: 12.5 Amps
Capacity: Approximately 325 Seven-Pound Bags
Cabinet Dimensions: 72” Wide x 48” Deep x 75” Tall (there is
a 1” high rail under the cabinet so the
overall height is 76” and doors add 3” to
depth)
1-800-543-1581

!
!
!
!
!
!
!
!
!
!
!""#$%&'()%
*+,%!""#%-.#"".$%/)0)%123%*+,%
4"5%!6782'$%96)%:;<:+%
=>?++>@,,>:;;@%
555)A""#6'()(2B%
%
%
&CD%EDFCGH4I&-DF%%
&4-JH!!HJ&04$%0/DFHJ&04%H4I%-DFK&CD%
EH4LH!%
!
!
!
"#$%!&!'()****!!!('+',!

[2]
TABLE OF CONTENTS
I. PACKAGING……………………………………………………………………….……… 2
II. INSTALLATION………………………………………………………….……………… 2-3
III. OPERATION……………………………………………………………………………… 3-6
1) Electrical……………………………………………………………...3-4
2) Mechanical Controls…………………………………………..……… 4
3) Electronic Control……………………………………………………4-5
4) Loading Ice…………………………………………………………….6
IV. MAINTENANCE……………………………………………………………………….… 6-10
1) Condenser Coil Cleaning………………………………………………6
2) Defrosting……………………………………………………………7-8
A. Cold Wall Models – Manual Defrost Only
B. Auto-Defrost Models with Mechanical Controls
C. Auto-Defrost Models with Electronic Control
D. Condensate Evaporator for Auto-Defrost Models
3) Door(s)………………………………………………………………8-10
A. Glass Doors (Indoor cabinet models)
B. Solid Doors (Outdoor cabinet models)
C. Point-of-Sale Decal Application to Solid Door
D. Hinge & Spring-Load Adjustment
E. Gasket Replacement
4) Cabinet Cleaning………………………………………………………10
V. COLD WALL WIRING DIAGRAM – ELECTRONIC CONTROL…………………… 11
VI. AUTO-DEFROST WIRING DIAGRAM – ELECTRONIC CONTROL………………. 11
VII. COLD WALL TROUBLE SHOOTING CHART – ELECTRONIC CONTROL………. 12
VIII. AUTO-DEFROST TROUBLE SHOOTING CHART – ELECTRONIC CONTROL… 13
IX. COLD WALL WIRING DIAGRAM – MECHANICAL CONTROL………………….... 14
X. AUTO-DEFROST WIRING DIAGRAM – MECHANICAL CONTROL…………..….. 14
XI. COLD WALL TROUBLE SHOOTING CHART – MECHANICAL CONTROL…….. 15
XII. AUTO-DEFROST TROUBLE SHOOTING CHART – MECHANICAL CONTROL.. 16
XIII. REPLACEMENT PARTS……..………………………………………………………. 17-18
NOTES …………………………………………………………………………………………….. 19
WARRANTY………………………………………………………………………………….…...…20
Material and product improvement is a continuous commitment at Leer. This manual is subject to modification or
change without notice and without incurring responsibility for previously sold merchandisers and components.

[3]
Prior to installation, the outer packaging on the
merchandiser will need to be removed. The majority
of the packaging materials can be recycled and
disposed of in an environmentally friendly manner.
The wooden skid is secured to the underside of
merchandiser with hex-headed screws and will
require the use of a 3/8" hex-socket for screw
removal. Glass door models are shipped with door
support brackets installed between the
merchandiser's door opening(s) and the bottom rail
of the door. These support brackets need to be
removed prior to operation of the merchandiser.
Failure to remove the brackets will affect the seal of
the door gasket to the cabinet face.
Note: The merchandiser should be stored, and
transported, in an upright position. If the
merchandiser is tilted beyond 45 degrees of vertical,
oil may drain from the compressor casing. Should
this occur, it is recommended that the merchandiser
be returned to a vertical position for a period of time
that is comparable to the time spent tilted to allow
any oil that may have migrated an opportunity to
drain back to the compressor prior to energizing the
compressor.
The merchandiser installation location should have
a solid, level base. If the merchandiser is exhibiting
a slight forward lean, the front of the cabinet should
be blocked to bring the cabinet to a level position*.
A forward lean of the cabinet could inadvertently
allow the product inside the cabinet to shift forward
and interfere with the closure of the door(s). On
upright cabinet models, a forward lean may also
counter-act some of the spring tension in the hinges,
which may also affect the proper closing and seal of
the door(s). On auto-defrost models, a forward lean
may also affect proper draining of the unit cooler
assembly during the defrost cycle.
•Leveling Kit No. 1050019, that is
compatible for use on most cabinet models,
is available through the manufacturer.
Contact the Merchandiser Sales Department
at Leer, Inc. for additional information.
Locate the merchandiser so that the main power
cord is within easy reach of an electrical outlet. It is
strongly recommended that extension cords are not
used in supplying power to the merchandiser. An
improperly sized extension cord may cause a drop
in voltage feeding into the merchandiser. Voltage
fluctuations exceeding +/- 5% will place an added
strain on the merchandiser’s refrigeration system,
which could possibly result in a pre-mature
compressor failure. If the use of an extension cord
is unavoidable, it is recommended that the
construction of the extension cord be a minimum of
12 gauge wire and that the length not exceed 25
feet. Regardless of the sizing, if an extension cord
is utilized, it would still be recommended that the
merchandiser be measured for voltage drop during
the compressor start*.
•Testing of the merchandiser’s electrical or
refrigeration system should be performed by
a qualified technician.
In locating the merchandiser, there should be a
minimum of 3 inches of air space allowed away
from all surfaces of the cabinet and any surrounding
structures. This air space will allow for some air
flow over the surface of the cabinet, thus reducing
condensation and aid in the drying of these surfaces,
to reduce stress on the painted surface of the
cabinet. On outdoor auto-defrost models, the 3 inch
space behind the merchandiser will also help ensure
that the evaporator drain tube, exiting the back wall,
is not being restricted or blocked during the defrost
cycle.
For indoor auto-defrost models, the merchandiser is
supplied with a condensate evaporator heater
assembly. This assembly is packaged, with
instructions and shipped inside the merchandiser. It
will require some simple installation by the
consumer (see Figure 1). A separate copy of this
instruction sheet is supplied with the condensate
evaporator assembly. The condensate evaporator
assembly contains a drip pan to collect water
generated by the merchandiser’s defrost cycle and a
heat element to evaporate the water. Once
energized, the heat element in the condensate
evaporator assembly is generating heat
continuously. The merchandiser should be located
so that there is at least 1 inch of air space between
the back surface of the condensate evaporator
housing and any wall surface behind the cabinet, to
allow for some heat dissipation away from the
surface of the wall. The main power cord should be
routed to avoid pinching between the surface of the
heated condensate evaporator housing and any wall
surface that may exist behind the merchandiser.
!"#$%&'%(!)(#
!!"#!)*+%,,%+!-)#

[4]
Note: Do not operate an indoor auto-defrost
merchandiser without having a condensate
evaporator assembly installed over the evaporator
drain tube exiting the back wall of the cabinet.
Failure to install this assembly would result in water
being generated during the defrost cycle which will
drain directly onto the floor. This may result in
water damage to the floor and create a possible
hazardous slip condition in the area surrounding the
merchandiser.
Figure 1: Condensate Evaporator Installation
Electrical: The electrical voltage and frequency
being supplied to the merchandiser must coincide
with the ratings noted on the merchandiser’s serial
data plate (for most units sold in North America,
this would be 115 Volt, 60 Hz). This data plate is
typically be located at the upper left hand corner of
the merchandiser’s interior. The electrical service
connections are compliant with national electric
code and any local codes that may apply.
Electrical power to the merchandiser should be
supplied through a dedicated service that is
controlled through a fuse or circuit breaker.
Information available from the condensing unit data
plate will indicate the maximum fuse/circuit breaker
size required for that specific merchandiser model.
Note: Operating more than one appliance on the
same circuit may result in voltage fluctuations when
both appliances are operating simultaneously. This
voltage fluctuation could eventually lead to a
premature compressor failure.
The merchandiser comes equipped with an 8 to 10
foot power cord, terminated in a Type B North
American, grounded, 3-prong plug. The electrical
connection should be made to a Type B socket. If a
3-prong, grounded socket is not available, a 3-prong
adapter may be temporarily used to connect to a
Type A 2-prong socket so long as the socket
housing is grounded (see Figure 2). Do not defeat,
or remove, the grounding prong on the
merchandiser’s power cord.
Figure 2: Ground Adapter
!!!"#-$./%+!-)#

[5]
Each merchandiser has been run and leak tested
during the course of its’ manufacture. The
merchandiser will arrive at the customer location
ready to operate within design parameters that have
been tested and deemed optimum for ice storage.
Within a few seconds of being plugged in, the
compressor and condenser fan motor will energize.
If the merchandiser is a glass door (indoor) model,
the light fixture that is inside the cabinet will
illuminate. If the merchandiser is an auto-defrost
model, the evaporator fan motors will also energize.
The merchandiser will continue to run until it has
reached the factory pre-set cut-out temperature of
+16 degrees F.
Temperature Controls: Merchandisers are
currently available with either mechanical controls
(optional), or an electronic control (standard).
Mechanical Controls: Thermostat
This is the classic thermostat where the
engagement, and disengagement, of the thermostat
is controlled by the expansion, and contraction, of
gas within a sensing tube. As the air in the cabinet
warms, the gas in the tube expands until the switch
in the thermostat closes and re-energizes the
refrigeration system. This will then cool the cabinet
air, and the sensing tube, until the cabinet reaches
the controls pre-set cut-out temperature.
Merchandisers with mechanical thermostats are
factory set to operate at a cut-out temperature of
18 degrees F +/-2 deg. The thermostat has an
adjustment knob that allows a limited adjustment
range. Rotating the adjustment knob clockwise will
lower the cabinet temperature, while a counter-
clockwise rotation will raise the cabinet
temperature. Rotating the adjustment knob fully
counter-clockwise will shut off power completely to
the merchandiser’s condensing unit. The thermostat
has a pre-set differential of 7 degrees F, which is
not adjustable.
On cold wall (CW) cabinet models, the thermostat
is located on top of the cabinet under the cover
housing the condensing unit. The sensor tube
inserts through the ceiling of the cabinet and exits
near the interior back wall.
On automatic defrost (AD) cabinet models the
thermostat is housed inside the unit cooler assembly
that is mounted to the interior ceiling of the cabinet.
Mechanical Controls: Defrost Timer
The defrost timer is located on the top of the
merchandiser, under the cover housing the
merchandiser’s condensing unit. The timer will
engage the merchandiser’s defrost cycle once every
4 hours, for a duration lasting 16 minutes. The
standard timer, supplied with most merchandisers,
is pre-set and non-adjustable. The timer may be
manually advanced into defrost by rotating the
advancement knob in a clock-wise direction. The
knob is located on the rear of the timer casing.
Manual advancement into the defrost mode will re-
set the next controlled defrost cycle to take place in
4 hours.
The automatic defrost function is available on those
cabinet models designated as “auto-defrost” (AD).
The cold wall (CW) cabinet models do not have an
electronically controlled defrost. The CW models
require manual de-icing of the cabinet’s interior
walls.
Electronic Controls: Digital Display
Operating Mode Display:
Snowflake “ON” – compressor enabled in run
cycle, control displays current cabinet temperature.
Snowflake “Flashing” – Anti short cycle delay
enabled to protect the compressor from trying to
start too frequently.
Melting Snowflake “ON” – Defrost in progress,
control displays the letters “DE”
To view the controls’ programmed “Set Point” (cut-
out temperature) – Press and release the Set Key
To initiate a manual defrost cycle – Press and hold
the Manual Defrost Key for more than 2 seconds
Note: Manual Defrost will not initiate if the cabinet
temperature is above 40 degrees F
Manual
Defrost Key
Defrost Enabled Icon –
Melting Snowflake
Compressor Enabled Icon –
Snowflake
Set Key
Temperature & Settings
Display
!!!"#-$./%+!-)#&01234"#

[6]
Electronic Control (continued)
The electronic control combines the functions of
both the mechanical thermostat and defrost timer
into a single control. The control also offers the
consumer the capability of monitoring the
operational status of the merchandiser, via the icon
and digital temperature display (located on the face
of the control). The controls have been programmed
by the manufacturer to operate the merchandiser
within the design parameters of the refrigeration
system. The Set-Point (cut-out) for these controls
has been factory programmed for 16 degrees F, with
a differential of 8 degrees F. Should the user desire
to alter the Set-Point, the new Set-Points should not
exceed +/- 4 degrees of the original factory setting.
It is recommended that the user not alter any of the
parameter programming in the controls without first
consulting with the manufacturer. There are two
separate electronic controls available based upon
the cabinet type; Cold Wall or Auto-Defrost.
Cold Wall Control: The CW control is located on
top of the merchandiser, beneath the cover housing
the condensing unit. The control has a single
thermal-couple probe wire used to monitor the air
temperature inside the cabinet. The probe enters
through the top of the cabinet and is secured at a
specific location where the back wall and ceiling of
the interior meet. The control will display the air
temperature in the cabinet at the probe’s location.
Although the control has a Manual Defrost Key,
this action is non-functional on the CW cabinet
models (see the defrost instructions for CW cabinet
models in the Maintenance section of this manual).
The control will power up when the merchandiser is
plugged into its’ power supply. There will be a few
second delay between the control powering up and
the condensing unit energizing. Certain cabinet
models may have an ON/OFF power switch
installed in the wall of the control housing. If the
control should fail to energize when plugged in,
check to see that the toggle switch is in the ON
position.
Auto-Defrost Control: The AD control is also
located on top of the merchandiser. This control
contains two thermal-couple probe wires. Both
probe wires are routed through the cabinets suction
line hole and into the unit cooler assembly, which is
mounted to the interior ceiling of the cabinet. The
Air Sensing Probe (P1) routes through the unit
cooler and has its’ sensing bulb secured to the outer,
left-hand wall of the unit cooler. Probe “P1”
monitors the air temperature in the merchandiser at
that location. During the normal operation of the
control the digital display will show the cabinet
temperature at the probe “P1” location. Probe “P2”
is inserted into the finned section of the evaporator
coil, near the top of the unit cooler assembly. This
probe monitors the temperature of the evaporator
coil during the defrost cycle. The control is factory
programmed to engage in a defrost cycle at 4 hour
intervals. The defrost cycle is timed to last for a
total of 16 minutes, unless the temperature at “P2”
reaches 50 degree F prior to the end of the timed
cycle. Should that occur, the temperature at “P2”
will override and end the defrost cycle. During the
defrost cycle, the control will display the letters
“DE”, along with the Melting Snowflake Icon.
Possible Displayed Alarm Codes:
“P1” – Air Probe failure: The control will override
the “P1” functions and cycle the compressor at 5
minute intervals, until the probe fault can be
corrected.
“P2” – Evaporator Probe failure: The control will
override the “P2” function and operate with a timed
defrost cycle, until the probe fault can be corrected.
“HA” – Maximum Temperature Alarm: The cabinet
air temperature has exceeded programmed
maximums for a period exceeding 15 minutes. The
alarm will continue to display until the cabinet
temperature drops below maximum levels.
“LA” – Minimum Temperature Alarm: The cabinet
air temperature has dropped below the programmed
minimum. This alarm will continue to display until
the cabinet temperature rises above the minimum
level.
Note: Should a “P1” or “P2” alarm occur, check the
probe wire connections to the control prior to
replacing the probe wire.
For more detailed information, or instruction,
regarding the Electronic Control’s programming
and instructions; the Merchandiser Division
Customer Services for Leer, Inc, can be reached by
phone at 1-800-766-5337, or e-mail contact
information is available on our web-site at
www.leerinc.com./ice merchandiser sales

[7]
Loading Ice: The merchandiser should be pre-
chilled prior to loading with ice. Pre-chilling will
aid the merchandiser in reaching storage
temperature at a faster rate, once loaded, and reduce
the risk of melting product.
Do not overfill the merchandiser with ice!
Cold Wall Models: If the bagged ice blocks off air
flow from the front of the cabinet to the controls’ air
probe the control may not respond quickly enough
to maintain proper cabinet temperature. Allow a
minimum of 6 inches clearance between the top of
the ice stack and the ceiling of the cabinet interior.
This will allow a pathway for warmer air entering
the cabinet during door openings to migrate to the
sensing bulb on the probe.
Auto-Defrost Models: Avoid stacking ice above
the top edge of the air ducts that are installed on the
walls of the cabinet interior. Blocking off these air
ducts may restrict the even distribution of cold air
throughout the cabinet, which may result in warm
spots developing within the cabinet. Also, do not
stack ice high enough to block off the evaporator
fans in the unit cooler assembly. The evaporator
fans are intended to pull any warm air entering the
cabinet into the unit cooler and then pushing that
warm air across the surface of the evaporator coil to
remove the heat prior to distributing the air into the
cabinet.
Cleaning Condenser Coils: The merchandiser is
manufactured utilizing an “air-cooled” condensing
unit. As a result, dust and debris may be drawn into
the finned surface of the condenser coil. Over time,
this build up of foreign materials in the coil will
decrease the coils’ ability to remove heat from the
refrigerant being pumped through the coil. This lack
of cooling the refrigerant will eventually lead to the
warming of cabinet temperatures, an increase in
system pressures and temperatures, and ultimately a
compressor failure. It’s recommended that the
condenser coil and fan blade be inspected, and
cleaned, at least once every 3 months. These
intervals will often vary depending upon the
environment the merchandiser is operating in. A
preventive maintenance plan should be developed to
aid in determining realistic cleaning intervals.
There are a variety of methods available for
cleaning these coils. The simplest methods would
involve the use of a vacuum cleaner to suck the dust
from the coil, compressed air to blow the dust from
the coil, or a combination of both methods. Keep in
mind that the dust is being drawn into the coil by
the condenser fan and should be removed in the
opposite direction. If a vacuum is used, the dust
should be drawn out of the coil from the outside
surface. If compressed air is used, the dust should
be blown out from the inside surface of the coil. If
compressed air is used, there may be a cloud of dust
released into the air surrounding the merchandiser.
Some of this dust can be reduced by using a vacuum
cleaner on the outer surface of the coil as the
compressed air is being applied to the inner surface.
Another method of trapping the dust would be to
drape a wet towel over the outer surface as the
compressed air is being applied. The service person
will need to determine the cleaning method that best
suits the merchandisers’ location and should always
wear proper protective equipment (i.e. safety
glasses and a dust mask) when performing these
coil cleanings.
Note: It is not recommended that any type of
filter media be placed in front of the condenser
coil, to trap dust. Testing of several different
filter types has shown that even the clean filter
media can create enough restriction of air flow to
reduce the efficiency of the coils heat exchange.
While the compressor cover is removed for the
condenser cleaning, the service person should use
the opportunity to visually check any wiring for
cracked or damaged insulation. Any exposed
copper wire should be replaced, or temporarily
repaired until replacement parts can be obtained.
Note: Replace damaged wire harnesses and
power cords with OEM supplied parts only.
!!!"#-$./%+!-)#&01234"#
!5"#6%!)+.)%)&.#

[8]
Defrosting the merchandiser: It is the function of
the evaporator coil to remove heat from the air in
the merchandiser. Combined with the heat are
varying amounts of humidity. While the heat is
being absorbed and removed by the refrigerant as it
circulates through the evaporator, the humidity
collects and freezes on the surface of the
evaporator. The amount of moisture collected and
the rate that it accumulates, will vary dependent
upon ambient air conditions, door openings, door
seal quality, and the “wetness” of the product being
loaded into the merchandiser. As ice builds up on
the surface of the evaporator’s tubing it will act as
an insulator between the air in the cabinet and the
surface of the tubing. This will slow the removal of
the heat from the cabinet by the refrigerant.
Eventually the ice build up will need to be removed
or it will defeat the function of the refrigeration
system. This ice removal is the merchandiser’s
defrost cycle. The means, and methods, of the ice
removal is dependent upon whether the
merchandiser is a “Cold Wall” model, or an “Auto-
Defrost” model.
Cold Wall Defrost Methods: The evaporator
tubing for the cold wall cabinet models is located
within the walls of the cabinet. After the cold wall
merchandiser is energized, a visual inspection of the
cabinet’s interior will reveal a serpentine frost
pattern developing on the ceiling and walls. This
frost pattern represents the configuration of the
evaporator tubing as it’s attached to the inside
surface of the cabinet. As humidity enters the
cabinet, it will collect and accumulate along this
frost-line pattern. As the frost-line expands and
builds in thickness, it will slow the heat transfer
between the cabinet walls and the evaporator
tubing. The cold wall cabinet models do not have
the design capability to self-defrost. In order to
defrost the cold wall models, the cabinet will need
to be emptied of product and disconnected from its’
power source. Defrosting then requires the entire
interior surface of the cabinet be warmed above
freezing to melt and remove the build up of ice from
the surface of the walls.
Power to the merchandiser can be turned off to the
merchandiser by merely unplugging the cabinet
from its’ power source. If the merchandiser is
equipped with a “mechanical thermostat”, power
can also be turned off to the refrigeration system by
rotating the temperature adjustment knob to its’ full
counter-clockwise position (Return the knob to its’
“Normal” position after the defrosting process is
completed, to re-energize the condensing unit). If
the cold wall cabinet has an “electronic control”,
unit power can also be turned off by use of the
ON/OFF toggle switch located on the control box of
certain cabinet models. If the toggle switch is not
present on the control box, the only means of
disconnecting power is to unplug the main power
cord at the power source. Although the electronic
control on the CW merchandiser has a defrost key
on its’ display face, this feature does not function
with the CW cabinet design and will not switch off
power to the run circuit if pressed.
With the merchandiser de-energized, the defrost
process can be helped along with the addition of hot
air being forced through the cabinets’ door opening
with the use of a hot air gun, or a small space
heater. As the ice build up softens, a plastic ice
scraper may be utilized to aid in removing ice from
the cabinet walls. Avoid the use of metal ice
scrapers or ice picks as these tools may
inadvertently penetrate through the wall of the
cabinet and puncture the evaporator tube, causing
irreparable damage.
A floor drain is present in most merchandiser
models. For outdoor models, the floor drain plug
could be removed to allow the water, generated by
the defrost process, to drain to the ground. If
draining to the ground is not desirable or if the
merchandiser is located indoors, the water
generated by the defrost process may be removed
with the use of a “wet-vac” and disposed of.
It’s suggested that some of the time allocated to
defrosting the cold wall cabinet may be utilized for
the cleaning of the condenser coil, as well as
inspecting the condition of wiring insulation, door
gaskets and spring-loaded hinges.
Auto-Defrost Methods: Auto-Defrost cabinet
models are equipped to be self-defrosting. These
cabinets are designed to automatically enter into
defrost mode once every four hours. During the
defrost cycle, the power to the refrigeration system
will be automatically re-directed to the defrost
circuit. This will shut down power to the
condensing unit and the evaporator fan motors and
also send power to a heat element that is attached to
the surface of the evaporator coil. The heat
generated by the element will melt the ice build up
on the evaporator coil and the resulting melt water
will drain through a tube out the back wall of the
merchandiser. On outdoor cabinet models, the melt
water will exit the drain tube directly to the ground.
!5"#6%!)+.)%)&.#701234"#

[9]
On indoor cabinet models, the consumer needs to
install the condensate evaporator heater assembly
(described in the INSTALLATION section of this
manual) onto the exterior back wall of the cabinet.
The melt water, from the defrost cycle, will drain
into a catch pan where it will then be heated to the
point of evaporation. Function of the condensate
evaporator’s heat element should be checked
routinely. Failure of the element could result in an
over-flow condition for the assemblies drain pan. A
simple check of the heater would be a touch test of
the surface temperature of the assemblies housing.
The condensate evaporator’s heat element is
energized continuously so the surface of the
housing should always be hot to the touch. If
testing the heat element with a meter, the element
can be unplugged from its’ power source and a
resistance reading can be taken through the plug’s
bladed terminals. The condensate heater is rated to
generate 125 watts of power, which translates to
approximately 106 ohms of resistance.
Auto-Defrost Mechanical Timer: The AD
merchandiser may come equipped with a
mechanical timer (as described in the OPERATION
section of this manual). The timer is factory set for
a 16 minute defrost cycle to occur at 4 hour
intervals (the timer is non-adjustable). During its’
run-cycle, the timer supplies power to the
thermostat, condensing unit and evaporator fan
motors. During the defrost cycle, the timer switches
power from the run-circuit to the defrost-circuit and
energizes the defrost heater. The AD mechanical
timer may be manually advanced to a defrost mode
by rotating the advancement knob (located on the
back of the timer) in a clockwise direction until the
defrost switch engages. The advancement knob
rotates in a clockwise direction only.
Auto-Defrost Electronic Control: The AD
merchandiser may come equipped with an
electronic control (as described in the OPERATION
section of this manual). The timer is factory set for
a 16 minute defrost cycle to occur at 4 hour
intervals. Similar to the mechanical timer, the
electronic control will switch power from run mode
(condensing unit and evaporator fans) to defrost
mode (defrost heat element). Whereas the
mechanical timer operates strictly on a timed cycle,
the duration of the electronic control’s defrost cycle
is controlled by the temperature at the sensor probe
“P2”. If the temperature at this probe reaches 50
degrees prior to the 16 minute timed cycle ending,
the control will override the timed cycle and
immediately switch power from the defrost mode to
the run mode. If temperature is not reached at
probe “P2”, the defrost cycle will continue for the
entire 16 minute programmed cycle prior to
returning to run mode. Energizing the defrost
circuit in the electronic control can be verified with
the illumination of the “melting snowflake” and the
letters “DE” appearing on the control’s display
screen.
Regardless of which control is installed on the
merchandiser, the defrost circuit is equipped with a
defrost termination switch. This switch is attached
to one of the evaporator coil tubes (located inside
the Unit Cooler Assembly). This switch senses
temperature and will cycle power off to the defrost
heat element should the temperature at the surface
of the switch reach 70 degrees F. This switch only
terminates power to the heat element and will not
end the timed defrost cycle. Once the merchandiser
has returned to run mode, the termination switch
will re-set when the temperature at its’ surface
reaches 35 degrees F.
Merchandiser Door Maintenance:
The merchandisers are largely available for two
applications 1) indoor use and 2) outdoor use. Most
indoor models are described as “glass door
cabinets”, while the outdoor versions are referred to
as “solid door cabinets”.
Glass Door Models: The glass door is constructed
with a non-heated, triple-pane glass-pack, with both
inner and outer panes being tempered. The doors
are intended for use in a controlled environment.
To avoid possible condensation on the outer surface
of the door, case temperature in the merchandiser
should be maintained near its’ designed set-point of
16 degrees F +/- 4 degrees and ambient dew-points
at the cabinet location should be kept below 60
degrees F. Any household glass cleaner can be used
to clean the surface of the door. The glass door’s
gasket is a rubber bellows-style, magnetic gasket.
The gasket should be inspected for possible
damage, or a poor seal to the cabinet surface on a
!5"#6%!)+.)%)&.#701234"#
The defrost termination switch functions as a
possible fire protection device. Do not remove, or
by-pass, the termination switch from the defrost
circuit.
8%/)!)(#9

[10]
regular basis. If damage has occurred to the gasket
that may be allowing outside air to penetrate into
the cabinet, the gasket should be replaced. The
replacement gasket has an insert dart that installs
into a retaining slot in the doors frame. The gasket
can be started in-place with simple hand pressure,
followed with mild impact pressure applied with a
dead-blow hammer to ensure that the legs of the
dart penetrate fully into the slot. Always set the
gasket at the 4-corners of the door first to reduce
stretching the gasket during replacement. If the
door gasket appears to be in good condition but is
failing to seal to the surface of the cabinet, both the
spring-load tension and adjustment of the hinges
should be checked. A simple test of the spring-load
tension is to open the door just enough to insert two
fingers between the surface of the cabinet and the
handle side of the door. When the fingers are
withdrawn, there should be enough tension set on
the hinge spring-loads to slowly move the door to a
closed position. If the door does not move from this
two-finger location, it’s likely that either the spring-
load requires re-tensioning or lubrication. If the
door moves part way from the two-finger location
but stops short of the cabinet, the compression of
the gasket along the hinge side of the door should
be checked. If there is too much compression, the
door will bind when closed and should have its’
hinge-mount location checked and possibly
adjusted. Removing the hinge covers will expose
the spring-loads for tension adjustment or removal.
Removal of the spring-load will expose the hinge-
adjustment plate and mounting screws should hinge
adjustment be required. See Figure 3 for
instruction regarding spring-load installation and
adjustment for the Kason Model 220 Edge-Mount
Hinge.
Solid Door Models: Cabinet models designed for
outdoor installation will have a metal clad door that
has been insulated with the same urethane foam
insulation as the cabinet. The exterior metal is
stucco embossed to hide minor impacts and is
coated with fluorocarbon paint system that was
designed and tested for years of outdoor exposure.
For routine cleaning of the doors’ exterior surface, a
mild detergent diluted in warm water should be
adequate.
Some consumers wish to utilize the door’s surface
to apply personalized or point-of-sale decaling.
Both the stucco embossed and painted surface may
hinder that application. The following
recommendations can be made regarding the
application of decaling to the surface of these doors:
Decaling Recommendations:
a) Use a decal with a 2 mil cast vinyl substrate.
Cast vinyl contains less memory than a
calendared vinyl or a polyester substrate and
will conform to the embossed surface with
the least amount of stress on the decal’s
adhesive.
b) The decal’s adhesive should have a
minimum peel-strength rating of 80 oz/inch.
c) Clean the surface of the door with isopropyl
alcohol and either air dry or dry with a clean
cloth.
d) Heating the surface of the door immediately
before applying the decal will aid the
adhesive bond of the decal. Never apply a
decal to a surface that is colder than
50 degrees F
e) Use a soft roller or plastic squeegee to apply
the decal and press it into the embossed
surface of the metal. Applying a small
amount of heat to the surface of the decal
will aid in this process.
f) A recommended decal substrate is “Arlon
DPF 8000 – Cast Laminate”*
*Recommendation based on application testing
performed by “AllOver Media”*. Test results of
the “Arlon DPF 8000 Laminate” are available upon
request to the Customer Service Dept. at Leer, Inc.
As with the glass door models routine inspection of
the door gasket seal and the action of the door’s
hinges are recommended. The upright door
(measuring 27” x 46”) utilizes the same Kason
Model 220 hinge as the previously mentioned in the
“Glass Door Models” section of this manual. The
slant door (measuring 27” x 27”) utilizes a Kason
Model 211 hinge which is not spring-loaded. Both
doors have the same gasket profile, which has a
barbed dart that inserts into a slot opening in the
surface of the door frame. See Figure 4 for
instructions on solid door gasket replacement.
Damaged or torn gaskets may allow infiltration of
warm, moist air into the merchandiser and should
be replaced.
*AllOver Media is an independent graphics
company and is not directly affiliated with Leer,Inc.
Examples of their graphic applications can be
viewed on their web-site at www.allovermedia.com.
!5"#6%!)+.)%)&.#701234"#

[11]
Figure 3: Spring-Load Installation
Cleaning the merchandiser: The exterior of the
merchandiser can typically be cleaned with the use
of a detergent dilluted in warm water followed with
a tap water rinse. The exterior paint is capable of
withstanding the use of polishing compounds and
most solvents. If using any stronger cleaning agents,
they should be tested on a small, inconspicuous area
prior to application onto visible surfaces of the
merchandiser. If cleaning the interior of the
merchandiser, the use of detergents with strong
odors (i.e. citrus based cleaners), abrasive cleaners
containing chlorine bleach and any form of solvent
based cleaners are not reccommended. They may
leave objectionable odors inside the cabinet which
may be absorbed by the ice being stored in the
merchandiser.
Door gaskets on outdoor cabinet models may
mildew and stiffen over time. The gasket is made
of a soft, flexible PVC and can be cleaned using
most kitchen and bath cleaners designed for mildew
removal. Review manufacturer information and
instructions on any cleaning agent prior to use to
determine the cleaners’ compatability with the
surface being cleaned.
Figure 4: Solid Door Gasket Replacement
!5"#6%!)+.)%)&.#701234"#
Note: Maintenance and /or repair of the
electrical and refrigeration systems should
only be performed by trained and
qualified personnel.

[12]
5"#&0:4#8;::#8<=<1>#?<;>=;@#A .:B72=01<7#&012=0:#
5!"#%C20D?BE=0F2 8<=<1>#?<;>=;@#A#.:B72=01<7#&012=0:#

[13]
5!!"##&-,?#8%,,#+/-GH,.#*I--+!)(#J,-8#&I%/+#A#.,.&+/-)!&#&-)+/-,#

[14]
5!!!"##%G+-D?.J/-*+##+/-GH,.#*I--+!)(#J,-8#&I%/+#A#.,.&+/-)!&#&-)+/-,#

[15]
!K"#&0:4#8;::#8<=<1>#?<;>=;@#A#6B7L;1<7;:#&012=0:#
K"#%C20D?BE=0F2#8<=<1>#?<;>=;@#A#6B7L;1<7;:#&012=0:F#

[16]
K!"#&0:4#8;::#+=0CM:BD*L002<1>#J:0N#&L;=2#A#6B7L;1<7;:#&012=0:#
K!"#&0:4#8;::#+=0CM:BD#
################################################################
#
#
#
# #
*L002<1>#J:0N#&L;=2#A#6B7L;1<7;:#&012=0:#
K!"#&0:4#8;::#+=0CM:BD*L002<1>#J:0N#&L;=2#A#6B7L;1<7;:#&012=0:#
K!" &0:4 8;:: +=0CM:B
Cabinet is not maintaining temperature
Condensing unit fan motor is running
Compressor is running
No power at service outlet
Thermostat is turned to
“OFF” position
Faulty thermostat
Open circuit in cabinet wiring
NO
NO
YES
Faulty connection to fan motor
Faulty fan motor
Compressor is running
YES
Low voltage on start up
Faulty connection to compressor windings
Faulty start components on compressor
Faulty compressor
NO
YES
Thermostat adjustment knob is set too warm –
Re-set between 12:00 and 1:00 o’clock position “Normal”
Air flow through the condenser coil is blocked or restricted and the fan
blade is coated in dust – clean the condenser coil and fan blade
Cabinet has been over-filled with ice and is blocking air
flow to the thermostats’ sensing tube
Door is not closing or sealing properly - Allowing warm, outside
air to enter the cabinet.
Excess frost build up on the interior walls – defrost the cabinet
Lack of a frost-line on the back wall of the cabinet’s interior
Loss of refrigerant or an undercharge
Restriction in the refrigeration system
Loss of compressor pumping capacity
Uneven feed through the capillary
tubes on a dual capillary tube system,
flooding one evaporator while starving
the other.

[17]
K!!"#%C20D?BE=0F2#+=0CM:BD*L002<1>#J:0N#&L;=2#A#6B7L;1<7;:#&012=0:#

[18]
!+.6#######?.*&/!$+!-N $%/+#O#################!+.6########?.*&/!$+!-)###############################$%/+##
1. Condensing Unit: Provide
condensing unit model number
2. Thermostat - Mechanical 1328046
Timer - Mechanical 1328023
Electronic Control – Cold Wall 1328034
Electronic Control – Auto Defrost 1328035
Sensor Probe – Electronic Control 1328036
Power Harness w/o Switch Terminal 1270062
Power Harness with Switch Terminal 1270070
Toggle Switch (for PN 1270070) 1213042
3. Unit Cooler Evaporator Parts:
Fan Guard 1396023
Fan Blade 1392008
Fan Mounting Bracket 1101401
Fan Motor 1393029
Defrost Limit Thermostat; 30F/70F 1328003
LCL 120 Defrost Heater – 400W 1261007
LCL 170 Defrost Heater – 600W 1261008
LCL 190/280 Defrost Heater – 800W 1261009
4. Full Top Enclosure: Provide the
merchandiser model number.
5. "ICE" Decal for full top (Red) 1070076
“ICE” Decal for full top (Blue) 1070069
6. "ICE" sign for full top (Red) 5991021
“ICE” sign for full top (Blue) 5991022
7. Cover w/o decal 5848004-5
Cover w/ decal 5848000-5
8. "Packaged Ice" Decal. 1070068
9. Items 8 & 9 now a combined decal 1070068
10. J-Bolt for all solid doors 1160008
11. Door Hasp for all solid doors 5120001
12. Door Handle for all solid doors 1914001
13. Check Chain 1915001
14. Door, Stucco Charcoal Gray
5591027
27" x 27"with gasket
15. Door Gasket for
1030016
27" x 27" solid door
16. Hinge with cover for 27" x 27" solid
door
1911019
17. Door, Stucco Charcoal Gray
5591035
27" x 46" with gasket
18. Door Gasket for
1030014
27" x 46" solid door
19. Glass Door, 28" x 47" Silver Frame
1412012
Glass Door, 28" x 47" Gold Frame
1412013
20. Door Gasket for 28" x 47" glass door
1490007
21. Door Hinge for 28" x 47" door:
Silver w/spring & cover
Gold w/spring & cover
1911002
1911022
Silver Hinge Cover
1990008
Gold Hinge Cover
1990009
Spring-Load Kit (Kason 220 hinge)
1990002
22. "ICE" Decals (Red) One Set
"ICE" Decals (Blue) One Set
1070074
1070070
23. Rain Shield for 27" x 46" solid door
5120098-5
24. Ice Pallet 22" x 28" Black
1050079
25. Fluorescent Light Fixture (w/bulb)
Fluorescent Bulb w/ Plastic Shield
5239004
1216005
26. Condensate evaporator assy. for
automatic defrost models (White)
5349040
27. Cond. evaporator heat element 125W
1261004
28. Merchandiser leveling kit (not shown)
1050019
Note: Providing the cabinet model and serial number may aid in identifying parts for a specific merchandiser.
Return only authorized parts to this address: Leer, Inc.
206 Leer St.
New Lisbon, Wi. 53950
- Contact the Leer Merchandiser Customer Service Dept. to obtain a Return Material Authorization (RMA) Number
)-+.P#,BB=#B:B72=<7;:#;14#=BE=<>B=;2<01#Q;=2F#;=B#<1F2;::B4#<1#70@Q:<;17B#20#G","#*2;14;=4#RST"###/BQ:;7B@B12#0E#Q;=2F#
2L;2#;=B#102#G","#&B=2<E<B4U#0=#;=B#102#<4B12<7;:#20#2LB#-.6#<1F2;::B4#Q;=2U#@;V#W0<4#2LB#@B=7L;14<FB=3F#G","#,<F2<1>#;14X0=#
2LB#J;720=V#N;==;12VU#QB=#Y(B1B=;:#$=0W<F<01FZ#0E#2LB#;770@Q;1V<1>#N;==;12V#F2;2B@B12"#
!"""#$%&'()*&+&,-$.)/-0$120-$