INSTALLATION CONSIDERATIONS:
This section covers some of the more common installa-
tion issues seen by a service technician. An improper
installation, though not a valid service issue, has the
potential to lead to a customer placing a call for service.
Installation related customer complaints could include,
but are not limited to: Unit leveling, unit movement,
door misalignment, doors and drawers not sealing,
internal frost or condensation, warm compartment tem-
peratures, exterior condensation, etc.
NOTE: Always refer to the Installation Manual whenev-
er installation related concerns arise, or contact the
Sub-Zero Customer Service Department.
Unit Leveling (Model 424)
Unlike the other 400 Series units, the model 424 must
be leveled before it is installed into the rough-in open-
ing. (See WARNING above). To level the model 424,
place it in front of the rough-in opening. Then, turn
each of the four leveling legs clockwise to raise the unit,
counterclockwise to lower the unit. (See Figure 2-1)
An adjustable wrench or pliers may be needed.
NOTE: If removing a 424 from its installation, an anti-
tip bracket and a countertop bracket may have been
used to make a solid installation. (See Figures 2-2) If
the brackets were not used, shims may have been
wedged along the sides and top.
Unit Leveling (Models 427 & 427R)
NOTE: The unit must be in the correct installation posi-
tion before leveling. (See WARNING above). The kick-
plate/grille must be removed before leveling. (See
Figure 2-3) If the unit has already been anchored to
the cabinets, the side molding strips must be removed
and the anchor screws must be extracted from the unit
to cabinet brackets before leveling. (See Figure 2-4)
These components must be reinstalled after leveling.
To level the unit, turn the front leveling legs counter-
clockwise to raise the front or clockwise to lower it. To
assist in turning the front leveling legs up or down, use
400 Series
400 Series
Installation Information
2-2
UNIT COULD TIP FORWARD UNDER CERTAIN
LOAD CONDITIONS. FAILURE TO INSTALL ANTI-
TIP COMPONENTS AND EXTEND FRONT LEVEL-
ERS TO FLOOR ACCORDING TO INSTALLATION
MANUAL CAN RESULT IN SERIOUS INJURY OR
DEATH.
Figure 2-1. Model 424 Leveling Legs
Figure 2-2. Model 424 Countertop Bracket
Figure 2-4. Model 427, 427R
Molding Strip & Bracket
Figure 2-3. Model 427, 427R
Kickplate/Grille Removal
Leveling Legs
Clockwise to raise, Counterclockwise to lower
Side Molding
Unit to Cabinet
Bracket
Screw
Kickplate/ Grille
Countertop Bracket
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