Hussmann MAXI-140, Operator'S Manual

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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P/N 31033596_B

01 June 2007

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MAXI-140

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MAXI-140

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MAXI-140

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MAXI-140

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MAXI-140

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Safe-NET Controller

SELECT

Button

UP

Button

DOWN

Button