Hussmann MAXI-140 User manual

MAXI-140
Operator’s Manual
P/N 31033596_B
01 June 2007
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These merchandisers are manufactured to meet ANSI / National Sanitation Foundation (NSF®) Standard #7 Type II
requirements. Proper installation is required to maintain certification. Near the serial plate, each case carries a label
identifying the type of application for which the case was certified.
ANSI/NSF-7 Type II – Display Refrigerator / Freezer ( Beverage Cooler)
Intended for 80°F / 55%RH Ambient Application
This equipment is intended for the storage and display of
nonpotentially hazardous, bottled or canned products only.
Copyright Notice
Hussmann and Safe-NET are trademarks of Hussmann Corporation,
Chill Chamber is a trademark of Anheuser-Busch, Inc.
EPH

SAFETY FIRST!
Before installing, read and understand the
operating manual. Any damage caused by not
following directions given in this manual is out-
of-warranty.
Contact
To request technical assistance with your
Chill Chamber, or to place a service call,
please phone Hussmann’s call center at
1 [phone].
LOCATION
Chill Chambers are designed for a protected
environment, out of direct sun or rain. Placing
the unit near heat sources (ovens, grills, etc.) or
in direct sun will adversely affect performance.
Unusual ambient conditions can be handled by
changing settings in the Safe-NET controller.
Temperatures of 80°F (27°C) and less than
55% R.H. are considered normal ambient
conditions.
The merchandiser will not operate properly
in environments of extreme temperature and
humidity [above 80°F (27°C) and 55% relative
humidity]. Performance issues resulting from
poor local conditions are out-of-warranty.
The merchandiser must have a minimum 5-inch
(13 cm) ventilation space at the back, on each
side, and below the door in front. Top must be
open.
©2007 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM
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To reduce the risk of fire, electrical shock or
injury when using your Chill Chamber:
• Always use a dedicated circuit with the
Amperage stated on the unit.
• Plug into an outlet designed for the plug.
• Do not use an adapter.
• Do not overload the circuit.
• Disconnect power before servicing.
• Replace any damaged power cord.
• Never turn off by pulling on the power cord.
• Unit must have electrical ground at all times.
• Never connect the ground wire directly to the
neutral wire or connect to gas, water,
telephone, drain pipe, lightning rod, etc.
• Do not damage the refrigeration system.
• Do not use any mechanical device or other
means to speed the defrost process, except
as recommended by the manufacturer.
• Unplug the Chill Chamber before cleaning.
• Do not store or use toxic or dangerous
chemical products inside the case.
• Do not use electrical devices in the Chill
Chamber unless recommended by the
manufacturer.
• Use two or more people to move a unit.
• Keep packing materials away from children.
CAUTION
!
We reserve the right to change or revise specifications and product design in
connection with any feature of our products. Such changes do not entitle the
buyer to corresponding changes, improvements, additions or replacements
for equipment previously sold or shipped.
OPEN
NOTHING ABOVE
5-inch (13 cm) Required Ventilation Minimum

Condensation may form on external parts
when the merchandiser is used in high relative
humidity. Use a soft cloth to remove moisture.
The floor or counter must be flat to facilitate
leveling and to avoid problems with door seal-
ing or abnormal noises. The floor, or counter,
must support the weight of a fully loaded
Chill Chamber. A fully loaded MAXI-140
weighs about 210 lb (95-kg).
INSPECTION
All equipment should be thoroughly examined
for shipping damage before and during the
unloading.
Each Chill Chamber is 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 mate-
rials and submit a written request to the carrier
for inspection, within 15 days.
UNCRATE
Use the appropriate equipment to safely lift
and move the Chill Chamber to the preferred
location in your business.
Carefully remove the shipping box. Avoid
scratching the Chill Chamber.
Recycle packing materials whenever possible.
Remove Shipping Legs so the MAXI-140 Chill
Chamber base can be sealed to counter.
After leveling, use field-supplied FDA food-
grade silicone sealant*to seal the gap between
the base of the MAXI-140 and the countertop.
©2007 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM
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IMPORTANT:
The MAXI-140 Chill Chamber must remain
upright at all times. Do not tilt more than
30 degrees from vertical at any time.
Remove Shipping Legs
Front and Back
*Examples of FDA food grade silicone sealant:
Permatex Inc.
Silicone RTV Sealant for Food Zone
Henkel Loctite Corp.
RTV Silicone Adhesive Sealants for Food Zone,
"Loctite Superflex"
Silicone Sealant for Food Zone,
"Loctite Silatech"
General Electric Co.
RTV Silicone Rubber Adhesive Sealant for Food Zone,
"RTV 102, RTV 103, RTV 108, RTV 112, and others"
DOW Corning Corp.
100% Silicone Sealant for Food Zone,
"Dow Corning Commercial Grade"
Industrial Grade Silicone for Food Zone,
"Dow Corning 700"
. RTV Silicone Sealant for Food Zone,
"Dow Corning HVAC/R"

©2007 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM
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Optional Leg Kit
To maintain NSF standards of cleanability
when sealing cannot be done, Hussmann offers
optional leg kits that raises the MAXI-140
four or six inches. Directions are included with
the optional leg kit.
LEVEL
Chill Chambers must be level front-to-back
and side-to-side to operate at peak efficiency.
Shimming may be necessary. Ensure all sides
are firmly supported. Use care when shimming
legs.
PLUG IN
Put the Chill Chamber on its own dedicated
electrical circuit with ground. 12AWG is the
minimum size wire acceptable.
• The MAXI-140
requires a dedicated
15 Amp circuit with
grounded wall receptacle
(NEMA 5-15P)
• Do not use extension
cords. Never use adapters.
• If in doubt, call an electrician.
Electrical requirements for the merchandiser
are stated on the serial plate attached to the
unit.
If the power supply oscillates beyond the range
given in the preceding table, install a voltage
regulator.
Light Switch
The MAXI-140 Chill Chamber light switch is
located on the right rear of the interior top
panel. It controls the exterior canopy light;
LED lighting is ON at all times.
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NEMA 5-15P
MAXI-140
MAXI-140
1000 VA
Nominal
Voltage
Minimum
Voltage
Maximum
Voltage
120 108 132
Light switch
IMPORTANT:
After leveling, wait at least 30 minutes
before turning on power to the Chill
Chamber to allow any oil residue to return
to the compressor.
Oil not in the compressor at start up may
cause permanent damage not covered by
warranty.

INSTALL SHELVES
The MAXI-140 comes standard with
one fixed wire shelf with dividers for 16oz.
aluminum bottles and one removable flat wire
shelf for 16oz. aluminum bottles.
The removable lower shelf must be placed flush
against the back to maintain proper air flow
and product temperature.
DOOR HINGES
The MAXI-140 Chill Chamber door is not
self-closing.
The top door hinge has slots that allow the
door to be adjusted if the gasket doesn’t seal
completely.
Use a nut driver to loosen the four hex-head
screws just enough to allow the hinge to move
backward which will tighten the door seal.
©2007 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM
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Shelf Fasteners
Removable Lower Shelf
with Product Stop to Rear
Fixed Upper Shelf
MAXI-140 Upper Shelf
Slots
Slots
Top of MAXI-140
Loosen Screws
Loosen Screws

SET Safe-NET TIME
Safe-NET is the electronic controller that
regulates the cooling system. Before Safe-NET
can operate correctly, the internal clock must
be set. This will allow it to regulate the system
for defrost at convenient times of the day
around your location’s schedule — when you
are not at the busiest serving times.
The Chill Chamber’s Safe-NET comes preset
with two defrosts per day. In most situations
this will be enough defrosts unless the unit is
operated in non-air conditioned environments
or high humidity locations.
The Safe-NET on the MAXI-140 is located
behind the back grille below the condenser coil.
When you plug in the Chill Chamber you
should see the text “Safe-NET” scroll across
the display.
• Open the Safe-NET controller using a small
flat blade screwdriver to pop off the oval cover
(this may be tight).
• Plug in the MAXI-140. Be careful of
moving parts in the compressor compartment.
• You will see three buttons on the control
board as shown in this photo.
The SELECT button is used to scroll through
menus, and to edit/confirm values. Use the UP
or DOWN button to move to the next item in
the menu or change the value of a parameter.
Three Button Rules
• Always start by pushing and releasing the
SELECT button, watch what is displayed.
Which menu are you in?
— StUP — CLOC — DEFr — tEM —
VALv — DiSP — and cycles back to StUP
©2007 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM
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Safe-NET Controller
SELECT
Button
UP
Button
DOWN
Button

• Press and release the SELECT button until
you are in the proper menu. Once in the proper
menu press the UP or DOWN button to enter
the menu and to scroll through the menu.
• Once at the menu item that you want, press
the SELECT button until the item flashes
between the value and the title. You may have
to press the SELECT button more than once
to get the item to flash.
• Then press the UP or DOWN button to
change the item.
• Remember to push the SELECT button to
save the item.
• Pressing the UP and DOWN buttons at the
same time acts as an escape to go back out of
the menus.
Set the Clock
• Press the UP and DOWN buttons at the same
time to get to the temperature reading / default
display.
• Press the SELECT button until you see CLOC.
• Press UP once, then DOWN once, and then
SELECT.
• With minutes flashing, use the UP or DOWN
button until the correct minutes are displayed,
then press SELECT. Hours should flash.
• With hours flashing, use the UP or DOWN
button until the correct hour is displayed
(Safe-NET uses a 24-hour, or military, clock
where 12 is noon).
• Press SELECT and the clock has been set.
• The clock will automatically return to main
display. The internal real-time clock will retain
its time setting for at least one week if
unplugged.
Important: The clock does not automatically
adjust for Daylight Saving Time. If defrost
times are critical, the clock must be reset
manually.
Settings Requiring Pass Code
• Defrost Quantity
• Time of Defrosts
The pass code prevents inadvertent, or unau-
thorized, changes to the Safe-NET controller.
Any change beyond setting the time clock will
require the pass code.
Enter the Pass Code
• Press the SELECT button (top left button)
until you see StUP.
• Then press the UP button once to get to
PASS and press SELECT.
©2007 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM
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• Once the display starts blinking you will be
able to select the pass code, 595. Press the
DOWN button to get to this number.
• Once 595 is displayed, press the SELECT
button on the Safe-NET display module. The
display will revert to cycling between PASS and
595. This enables editing of system parameters.
The user may now navigate the menu system
and edit parameters as necessary.
Note:
The pass code protected access remains active
for 5 minutes. Each time a new parameter is
entered by pressing the SELECT button on the
Safe-NET display module, the 5 minute timer is
restarted. After 5 minutes with no parameter
entries, the pass code value reverts to 0 and the
pass code entry process must be performed to
regain access.
Any time you want to change defrost times, you
will need to set up the pass code before being
able to make the necessary changes.
Escape
To leave a Menu and return to the default
display, press the UP and DOWN buttons on
the Safe-NET display module simultaneously.
If a valid pass code has been entered it will
remain active for the remainder of the
5-minute time out period. This allows exiting
one menu and entering another to modify a
value without having to re-enter the pass code.
Defrosts
The unit must go into defrost mode at least
twice in each 24 hours to maintain optimal
performance. During defrost, the temperature
display may move up 2-3°F (1-2°C). Avoid
opening the door during the defrost cycle.
Defrost is necessary because the Chill Chamber
operates at temperatures below freezing (22°F/
–5.5°C). Defrosting is done automatically with
Safe-NET.
Defrost water drains to a drip pan where it
evaporates. Restricting airflow around the
bottom of a Chill Chamber may delay or
prevent complete evaporation.
In the event of power loss, the real time clock
will keep its settings for at least one week once
the battery is fully charged. The real time clock
battery is automatically recharged when the unit
is plugged in.
The Chill Chamber Safe-NET comes with two
defrosts preset: one at 0200 and one at 1400. If
the preset defrost times are acceptable for your
business, no settings need to be changed.
Replace the Safe-NET cover and grille.
If the preset times need to be changed for your
business schedule, or if additional defrosts are
needed because the unit is in an extreme envi-
ronment, the Safe-NET controller can be set to
meet the requirements of your business.
For MAXI-140 defrost, the evaporator fan
motor stops during defrost and WILL NOT
came back on when the compressor kicks on
because it has a delay in order to cool down
the evaporator before blowing air again. The
fan delay is controlled by the temperature of
the coil outlet.
©2007 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM
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P/N 31033596_B
01 June 2007
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Set Defrost Time (Pass Code Needed)
• Press the SELECT button (top left button)
until you see dEFr.
• Then press the UP button twice to get to
StAr and press SELECT.
• Press the UP or DOWN button to change
minutes; press SELECT.
• Press the UP or DOWN button to change
hours; press SELECT.
The second defrost will follow 12 hours later. If
this change meets the needs of your business,
replace the Safe-NET cover and grille.
Change Standard Defrost Time
(Pass Code Required)
Your business may need defrost times that are
not evenly spaced, or staggered, such as 0300
(3:00 a.m.) and 1400 (2:00 p.m.) because your
business is open later. Or you may need more
than two defrosts due to peak sales or high
humidity—0300, 0900, 1500 and 2100 are
evenly spaced, while 0300, 1000, 2100 are
staggered defrost times. Safe-NET can handle
2 or 3 staggered defrosts or 2 to 8 evenly
spaced defrosts in 24 hours.
NDEF
The ndEF parameter sets the number of defrost
cycles in a 24-hour period. The number works
in conjunction with the StAr parameter
discussed above. The ndEF (number of
defrosts) determines the number of defrosts
that occur in a 24-hour period beginning with
the StAr (first defrost) parameter. The
maximum number of defrosts allowed in a
24-hour period is 8. The defrosts are spaced
evenly across the 24-hour period beginning
with the StAr time. The formula for calculating
defrost start times is as follows:
Defrost interval = 24/ndEF
First defrost cycle start time = StAr
Second start time = StAr + Interval
Third start time = StAr + 2 X Interval
~
Eighth start time = StAr + 7 X Interval
For example, with a StAr value of 01:00 and
an ndEF setting of 4, the defrost cycle start
times are:
1:00 A.M.
7:00 A.M.
1:00 P.M.
7:00 P.M.
This scheme applies to all types of defrosts.
Setting this parameter is done in the dEFr
menu. After navigating to the ndEF submenu
item, the display will cycle between ndEF and
the current setting. While the setting is being
displayed, press the SELECT button to edit
this value. When the Safe-NET display module
begins flashing the value, use the UP /DOWN
buttons to increase or decrease the value to the
desired setting.
©2007 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM
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