Thermador Masterpiece HMDW30WS Manuel D'instructions page 10

Electrical Requirements
The unit requires a 1 2 0 V AC, 60 H z. 1 5 A branch circuit.
The hood should only be connected to a dedicated circuit
(with ground) that has been installed according to relevant
regulations.
Check your local building codes for proper method of ins
tallation. In the U.S., if there are no applicable local codes,
this unit should be installed in accordance with the National
Electric Code ANSI/ N FPA No. 7 0 , Current Issue. In Canada,
installation must be in accordance with the CAN 1 - B1 4 9 . 1
and .2 - Installation Codes for Gas Burning Appliances and/
or local codes.
The appliance must be grounded. In the event of an elec
trical short circuit, grounding reduces the risk of electric
shock by providing a wire that allows the electric current to
escape.
WARNING
The appliance must be grounded.
Electrical Data on the Data Rating Label
Data, including the model and serial number, is located
on the product data rating label inside the appliance,
visible after removal of the ilter frame.
Ductwork Preparation
Discharge Direction
The exhaust air is discharged upwar
The hood can be mounted only with
Ducting Recommendations
-
Proper performance is dependent u
Local building codes may require the
systems when using ducted ventilati
speciied cubic feet per minute (CFM) of air movement.
The speciied CFM varies from locale to locale. It is the
- additional requirements and/or standards apply to speciic
DO NOT USE FLEXIBLE DUCT; it creates back pressure/
air turbulence and reduces performance. Always use metal
ductwork.
Always install a metal vent cover where the ductwork exits
the house. Hood must be vented to the outside of building
only.
COLD WEATHER installations should have an additional
backdraft damper installed to minimize backward cold air
low and a nonmetallic thermal break to minimize conduc
MAKE-UP AIR: Local building codes may require the use of
make-up air systems when using ducted ventilation systems
greater than speciied CFM of air movement.
The speciied CFM varies from locale to locale. It is the
additional requirements and/or standards apply to speciic
Elbows and transitions ittings reduce air low eficiency.