Installation Guide
6  |  Sub-Zero Customer Care 800.222.7820
Plumbing Requirements
Installation must comply with all applicable plumbing codes.
Locate the water supply line within the shaded area shown 
in the illustration below. Connect the water supply line to 
the house supply with an easily accessible shut-o valve. 
Do not use self-piercing valves. The water supply line must 
be flush with the floor and cannot interfere with the instal-
lation of the anti-tip bracket.
Column and tall models with an ice maker or water dis-
penser feature a water filtration system. An in-line filter is 
required for drawer models with an ice maker when water 
conditions have a high sediment content.
A reverse osmosis system can be used provided there is 
constant water pressure of 35–120 psi 
(2.4–8.3 bar) sup-
plied to the unit at all times. In this application, the water 
filtration system must be bypassed. Refer to Water Filter 
Bypass on page 18. A copper line is not recommended for 
this application.
WATER SUPPLY LOCATION A
18" Model 3" (76)
24" Model 5⁄" (140)
30" Model 6" (152)
36" Model 9" (229)
3" (76)
6" (152)
RIGHT SIDE
OF OPENING
AREA EXTENDS 
1
/2" (13)
FORWARD ON FLOOR
A
Water supply location
PLUMBING REQUIREMENTS
Water Supply Line  ⁄" OD copper, braided 
stainless steel, or PEX tubing
Water Pressure 35–120 psi (2.4–8.3 bar)
Excess Water Line for Connection 36" (914) 
Site Preparation










