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.

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 (800) 504-4828.

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.

U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM

P/N 31033596_B

01 June 2007

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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.

U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM

P/N 31033596_B

01 June 2007

MAXI-140

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"

U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM

P/N 31033596_B

01 June 2007

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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

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.

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P/N 31033596_B

01 June 2007

MAXI-140

Shelf Fasteners

Removable Lower Shelf

with Product Stop to Rear

Fixed Upper Shelf

MAXI-140 Upper Shelf

Slots

Top of MAXI-140

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

U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM

P/N 31033596_B

01 June 2007

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Safe-NET Controller

SELECT

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.

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P/N 31033596_B

01 June 2007

MAXI-140

• 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.

U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM

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.

U.S. & CANADA 1-800-504-4828 • WWW.CHILLCHAMBER.HUSSMANN.COM

P/N 31033596_B

01 June 2007

MAXI-140

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