Sub-Zero 400 Series Service manual

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 INJURYOR
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

400 Series
400 Series Installation Information
2-3
Figure 2-6. Model 427, 427R
Adjusting Rear Leveling Leg
Figure 2-7. Model 430 Kickplate Removal
Figure 2-8. Model 430
Adjusting Rear Levelers
Figure 2-5. Model 427, 427R, 430
Adjusting Front Leveling Legs (427 Shown)
a standard screwdriver blade and place it in the foot of
the front leg. (See Figure 2-5)
The rear levelers are adjusted from the front of the
base by turning the Phillips head adjusting screw. Turn
the screw clockwise to raise the rear or counterclock-
wise to lower it. (See Figure 2-6) The long adjusting
screw reaches all the way to the rear leveler assembly.
NOTE: The rear leveling legs will only move 1/16” for
every 18 revolutions on the Phillips head screw. Do not
over torque. Use the lowest torque setting on any
power screwdriver. Do not turn rear leveling legs by
hand. Damage will occur if you turn these legs by
hand.
Unit Leveling (Model 430)
NOTE: The unit must be in the correct installation posi-
tion before leveling (See WARNING on previous page).
The kickplate must be removed before leveling. (See
Figure 2-7) If the unit has been anchored to the cabi-
nets, the anchor screws must be extracted before level-
ing, then 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
a standard screwdriver blade and place it in the foot of
the front leg. (See Figure 2-5 & 2-8)
The rear levelers are adjusted from the front of the
base, using a 5/16” socket wrench. (The long adjusting
screw just above the front leveler leg reaches all the
way to the rear leveler/roller assembly.) Turn the
adjusting screw clockwise to raise the rear or counter-
clockwise to lower it. (See Figure 2-8)
NOTE: Level is best checked at the top and side main-
frame extrusion(s).
Kickplate
Screw
Rear Leveler
Adjusting Screw
Front Leveling Leg
Rear Leveler
Adjusting Screw
Front Leveling Leg
Rear Leveling Leg

400 Series
400 Series
Installation Information
2-4
Figure 2-9. Model 424
Door / Cabinet Hinge Adjustment
Figure 2-10. Model 430 Top Door Hinge
Door Adjustment (Model 424)
NOTE: The unit must be level before adjusting the
door.
If the unit is properly installed, blocked and leveled, it
may still be necessary to adjust the door(s) from left to
right and/or in & out. Adjustments are performed at the
top and/or bottom cabinet hinge(s).
NOTE: The door hinges on the 424 are non-adjustable.
To access and adjust the cabinet hinge(s), it will be
necessary to pull the unit out approximately 6” from the
rough-in opening. (See NOTE below.) Working on
only one hinge at a time and using a 1/8” Allen wrench,
loosen the three cabinet hinge screws, then “snug”
them back down. (See Figure 2-9) Adjust door left to
right, or in and out. After adjusting the door, re-tighten
the screws and check for proper gasket seating.
NOTE: If removing a model 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.
Door and Drawer Adjustment (Models 427 & 427R)
NOTE:The door on models 427 and 427R, as well as
the drawers on the 427R are non-adjustable. Instead,
the door and/or drawer panels must be adjusted if there
is an alignment problem. Refer to the Installation
Manual.
NOTE: The unit must be level before attempting to
adjust the door and drawer panels.
Door Adjustment (Model 430)
NOTE: The unit must be level before adjusting the
door.
If the unit is properly installed, blocked and leveled, it
may still be necessary to adjust the door from left to
right and/or in and out. Adjustments are performed at
the top and/or bottom door hinge(s). Working on only
one hinge at a time, remove the two small Phillips head
shipping screws and discard them. Then loosen and
“snug” the remaining Allen head screws. (See Figure
2-10 & 2-11) Adjust door left to right, or in and out.
After adjusting the door, re-tighten the screws and
check for proper gasket seating.
Figure 2-11. Model 430 Bottom Door Hinge
Cabinet Hinge
Top Cabinet
Hinge - (No
Adjustment)
Shipping
Screws
Top
Door Hinge
Bottom
Door Hinge
Shipping
Screws
Allen-head
Screws
(2 of 4)
Bottom
Cabinet Hinge -
(No Adjustment)

400 Series
400 Series Installation Information
2-5
Door Stop Adjustment (Models 427 & 427R)
The models 427 and 427R have a 90° door stop cam
built into the hinge system. The 90° door stop cam is
located in the center portion of the hinge. To adjust it,
use a standard straight-blade screwdriver to rotate the
cam until you reach the stop point. (See Figure 2-12)
NOTE: You must make this adjustment at both bottom
and top hinge.
Door Stop Installation (Model 430)
For the model 430, optional 90° and 105° door stops
are available, free of charge from Parts Distributors
and/or Product Distributors. The part number for the
90° stop is #DS90, and the part number for the 105°
stop is #DS105.
To install a door stop on a model 430, the door must be
closed. Slide the door stop cam up onto bottom hinge
pin. The stub on the door stop fits into the hole on the
cabinet hinge. Retain door stop by pushing the E-Ring
into the groove at the end of the bottom hinge pin, mak-
ing sure that the E-ring is clipped securely into the
groove. (See Figure 2-13)
NOTE: Complete instructions accompany the part
when ordered.
Figure 2-12. Model 427, 427R
Door Stop Adjustment
Figure 2-13. Model 430
Door Stop Installation
E-Ring
Door Stop
Hinge Pin
METAL DOOR PANELS MAYHAVE SHARP EDGES
WHICH COULD INFLICT SERIOUS PERSONAL
INJURY. PROTECTIVE GLOVES SHOULD BE
WORN WHEN HANDLING PANELS.
DOOR PANELS MAYBE HEAVY OR UNSTABLE. IF
THEY WERE TO FALL, THEY COULD CAUSE SERI-
OUS PERSONAL INJURY. CARE SHOULD BE
TAKEN WHEN HANDLING.
Door Panel Removal and Installation (All Models)
Carbon, Platinum and Stainless Steel Door Panel
Removal and Installation (Model 424)
NOTE: Models 424G/B, 424HAG/B, 424S/B, 424G/P,
424HAG/P, 424S/P, 424G/S, 424HAG/S, 424S/S,
424FS/G, 424FS/HAG and 424FS/S are are shipped
from the factory with decorative steel panels and han-
dles in place.
In order to remove the door panel, the door will need to
be removed from the unit. To do this, you will need to
pull the unit out approximately 6” from the rough-in
opening to gain access to the door closer. Figure 2-14. Model 424 Door Closer
90° Stop Cam
Door Closer
Hinge Pin

400 Series
400 Series
Installation Information
2-6
NOTE: If removing a model 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.
Remove the two mounting screws securing the door
closer to the side of unit base. Slide the door closer
down off of the bottom door hinge pin. (See Figure 2-
14)
NOTE: It may be necessary to lean the unit back slight-
ly to create enough clearance between the hinge pin
and the floor.
Open the door and extract the two screws from the top
door hinge. Lean the door away from the unit slightly
and lift the door out of the bottom cabinet hinge. Lay
the door down and remove the bottom door hinge and
switch depressor. (If a lock and/or screws are present
on the bottom handle side, remove them also.) Locate
the Poly-tape under the gasket on the handle side
which covers the handle mounting screw holes. (See
Figure 2-15) Remove the tape, then extract the handle
mounting screws and pull the handle from the front of
the door. Now, lift the stainless steel panel from the
door. (See Figure 2-16)
To install a stainless steel panel, reverse the steps
above.
Overlay Door Panel Removal and Installation
(Model 424)
NOTE: Overlay panels are attached to the door of a
424G/O, 424HAG/O and 424S/O, using screws passing
through the door frame from the rear, into the panel.
The handle may also be attached through the door
frame or just through the panel.
To remove an overlay panel, open the door and locate
the Poly-tape under the gasket which covers the panel
mounting screw holes, and possibly the handle mount-
ing screw holes. (See Figure 2-15) Remove the tape,
then extract the panel mounting screws, and possibly
the handle mounting screws. (See Figure 2-17) Now,
pull the overlay panel from the door.
To install a new overlay panel, refer to the Installation
Manual. If reinstalling the existing panel, reverse the
steps above.
Door Panel Removal and Installation
(Models 427 & 427R)
NOTE: The models 427 and 427R are NOT supplied
with panels from the factory. Panels are purchased
separately. Door panels are attached to the door of a
Figure 2-15. All Models
Poly Tape Over Handle Mounting Screws
Figure 2-16. Model 424 Stainless Steel
Door Panel Removal
Figure 2-17. Model 424 Overlay
Door Panel Removal
Poly Tape
Door Gasket
Door Frame
Handle
Screws
SS Handle
(Door Hinges &
Screws - not shown)
SS Panel
Poly
Tape
Door Assy
Door Assy
Poly
Tape
Panel
Mounting
Screws
Overlay Panel
SS Handle Shown (Handle may vary)

400 Series
400 Series Installation Information
2-7
427 and 427R using screws passing through the door
frame from the rear, into the panel. The handle is
attached to the panel.
To remove a door panel, open the door and locate the
Poly-tape under the gasket which covers the panel
mounting screw holes. (See Figure 2-15.) Remove the
tape, then extract the panel mounting screws. Now,
pull the panel from the door. (See Figure 2-18.)
To install a new door panel on a 427 or 427R, refer to
the Installation Manual. If reinstalling the existing panel,
reverse the steps above.
Drawer Panel Removal and Installation
(Model 427R)
NOTE: The model 427R is NOT supplied with panels
from the factory. Panels are purchased separately.
Drawer panels are attached to the drawers of a 427R
using screws passing through mounting brackets at the
bottom of each drawer, and a dog-eared bracket on the
back of the panel fitting into slots in the face of the
drawers. (See Figure 2-19.) Handles are attached to
the panels.
To remove a drawer panel, open the drawer and locate
the six screws at the bottom. Remove the screws, then
pull the bottom of the drawer panel out slightly while
pulling downward.
To install a new drawer panel on a 427R, refer to the
Installation Manual. If reinstalling the existing panel,
reverse the steps above.
Carbon, Platinum and Stainless Steel Door Panel
Removal and Installation (Model 430)
NOTE: The models 430G/B, 430HAG/B, 430S/B,
430G/P, 430HAG/P, 430S/P, 430G/S, 430HAG/S, and
430S/S are shipped from the factory with decorative
steel panels and handles in place.
To remove the stainless steel panel you will need to
remove the door from the unit. If a door stop has been
installed, it must also be removed at this time. (See the
“DOOR STOP INSTALLATION, (Model 430)” section in
this manual.) First, detach the door closer assembly
from the bottom door hinge by opening the door until
the hole in door closer arm aligns with the hole in bot-
tom cabinet hinge, then insert a stubby screwdriver
(1/4” diameter or less) up into the two holes. With a
small straight-blade screwdriver, remove the E-ring
which holds the door closer arm to the stud on the bot-
tom door hinge. Then, pry the door closer arm down off
of the door hinge stud. (See Figure 2-20, and CAU-
TION on next page)
Figure 2-18. Model 427, 427R
Door Panel Removal
Figure 2-19. Model 427R
Drawer Panel Removal
Figure 2-20. Model 430
Detaching Door Closer
Drawer Panel
Mounting Bracket
- Upper
Drawer Panel
Mounting
Bracket
- Bottom
Pry Down
Screwdriver
up into holes
E-ring

400 Series
400 Series
Installation Information
2-8
NOTE: The screwdriver inserted in the holes of the
door closer arm and the bottom cabinet hinge will be
used to pry the door closer arm back into position when
reattaching the door closer to the bottom door hinge.
Open the door fully and extract the hinge-side trim
mounting screws located just behind the vertical rib of
the hinge-side trim, then remove the hinge-side trim.
(See Figure 2-21) Extract the screws from the top door
hinge. Lean the door away from the unit slightly and lift
the door out of the bottom cabinet hinge. Lay the door
down and remove the bottom door hinge. (If a lock
and/or screws are present on the bottom handle side,
remove them.) Remove the panel mounting screws
from the hinge side of the door. Locate the Poly-tape
under the gasket on the handle side which covers the
handle mounting screw holes. (See figure 2-15)
Remove the tape, then extract the handle mounting
screws and pull the handle from the front of the door.
Now, lift the stainless steel panel from the hinge side
first, pivoting it off of the handle side of the door. (See
Figure 2-22)
To install a stainless steel panel, reverse the steps
above.
Framed & Overlay Door Panel Removal and
Installation (Model 430)
NOTE: Framed and overlay panels are attached to the
door of a 430G/F, 430HAG/F, 430G/O, 430HAG/O,
430S/F and 430S/O by sliding the 1/4” thick edge of the
panel under the door trim. On the handle side of mod-
els 430G/O and 430S/O, additional screws passing
through the door frame from the rear, into the panel
may have been used for increased support. On the
430G/O, 430HAG/O, and 430S/O, the handle may also
be attached through the door frame, or just through the
panel.
To remove a framed or overlay panel, you must first
remove the handle, or trim on handle side if overlay
application. Using a piece of tape stuck to the center of
the magnetic trim molding, pull the trim molding out at
the midpoint to expose the handle mounting screws
(See Figure 2-23). Remove the mounting screws and
pull the handle, or trim on handle side, from the door.
You should be able to slide the panel towards the han-
dle side, and out from under the door trim at this time.
If the panel will not slide from under the door trim, panel
mounting screws and/or handle mounting screws may
have been used. Open the door and locate the Poly-
tape under the gasket. This tape covers the panel
Figure 2-21. Model 430
Hinge-Side Trim Removal
Figure 2-22. Model 430 Stainless Steel
Door Panel Removal
Hinge-Side Trim
Screw
Door
Panel
Poly
Tape
Door Assy Handle
Screw
(Door Hinges &
Screws - not shown)
Handle
Door closer is spring loaded and may recoil quickly
when detached.
Hinge-Side
Panel Mounting Screw Handle Stand-off
Panel Spacer/Washer

400 Series
400 Series Installation Information
2-9
Figure 2-23. Model 430 Trim Molding
Removal
Figure 2-24. Model 430 Framed and
Overlay Handle / Handle Side Trim
& Door Panel Removal
mounting screw holes, and possibly the handle mounting screw holes. Remove the tape, then extract the panel
mounting screws, and possibly the handle mounting screws. Now, you should be able to slide the panel towards the
handle side, and out from under the door trim. (See Figure 2-24)
To install a new framed or overlay panel, refer to the Installation Manual. If reinstalling the existing panel, reverse
the steps above.
Magnetic
Trim Molding
Handle or
Handle-side
Trim
Screws
Piece of
Tape
Framed or
Overlay Panel