Viking RVMHC330SS Installation Instruction

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When the hood is vented to the outside, a hood exhaust 
duct is required. All ductwork must be metal; absolutely 
do not use plastic duct. Check that all connections are 
made securely. Please read the following carefully: 
Exhaust connEction: The hood exhaust has been 
designed to connect to a standard 3 ¼" X 10" rectangular 
duct. If round duct is required, a rectangular-to-round 
adapter must be used.
REaR Exhaust: If a rear or horizontal exhaust is to be 
used, care should be taken to align the exhaust with the 
space between the studs, or wall should be prepared 
at the time it is constructed by leaving enough space 
between wall studs to accommodate exhaust.
MaxiMuM duct lEngth: For satisfactory air 
movement, the total duct length of 3 ¼" X 10" rectangular 
or 6" diameter round duct should not exceed 140 feet.
Elbows, adapters, wall caps, roof caps, etc. present 
additional resistance to air flow and are equivalent to a 
section of straight duct which is longer than their actual 
physical size. When calculating the total length, add 
the equivalent lengths of all transitions and adapters 
plus the length of all straight duct sections. Figure 3 
shows the approximate feet of equivalent length of some 
typical ductwork parts. Use the values in parentheses for 
calculating air flow resistance equivalent, which should 
total less than 140 feet.
This appliance must be grounded. This oven is equipped 
with a cord having a grounding wire with a grounding 
plug. It must be plugged into a wall receptacle that is 
properly installed and grounded in accordance with the 
National Electrical Code and local codes and ordinances. 
In the event of an electrical short circuit, grounding 
reduces risk of electric shock by providing an escape 
wire for the electric current.
WARNING: Improper use of the grounding plug can 
result in a risk of electric shock.
Electrical Requirements
The oven is equipped with a 3-prong grounding plug.
DO NOT UNDER ANY CIRCUMSTANCES CUT OR 
REMOVE THE GROUNDING PIN FROM THE PLUG.
DO NOT USE AN EXTENSION CORD. If the power 
supply cord is too short, have a qualified electrician or 
serviceman install an outlet near the appliance.
The Power Supply Cord and plug must be connected to 
a separate 120 Volt AC, 60 Hz, 15 Amp, or more branch 
circuit, single grounded receptacle. The receptacle 
should be located inside the cabinet directly above 
the Convection Microwave Hood mounting location as 
shown in figure 2.
notE:
•  If you have any questions about the grounding or 
electrical instructions, consult a qualified electrician 
or serviceperson.
•  Neither Viking Range, LLC nor the dealer can accept 
any liability for damage to the oven or personal injury 
resulting from failure to observe the correct electrical 
connection procedures.
Electrical Grounding 
Instructions
Hood Exhaust Duct
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Ground 
Receptacle
Opening for 
Power Cord