Step 6: Electrical Requirements, Connection & Grounding - Thermador PRO HARMONY PRD304GHC Manuel D'installation

Step 6: Electrical Requirements, Connection & Grounding
MODEL TYPE
30"
36"
48"
Before installing, turn power OFF at the service panel.
Lock service panel to prevent power from being turned
ON accidentally.
Prior to servicing appliance, always disconnect appliance
electrical supply cord, if so equipped, from wall receptacle.
If appliance is hard-wired to power supply, disconnect
power to unit by turning off the proper circuit breaker. Lock
service panel to prevent power from being turned ON
accidentally.
A neutral supply wire must be provided from the power
source (breaker) because critical range components,
including the surface burner spark re-ignition module,
require 120 VAC to operate safely and properly.
WARNING:
An improper 120/ 240 VAC power supply will cause
malfunction, damage to this appliance, and possibly
create a condition of shock hazard.
If the correct power supply circuit is not provided, it is the
responsibility and obligation of the installer and user to
have proper power supply connected. This must be
accomplished in accordance with all applicable local codes
and ordinances by a qualified electrician. It is the
responsibility of the installer to ensure compliance of local
codes. In the absence of local codes and ordinances, the
power supply connection shall be in accordance with the
National Electric Code.
Observe all governing codes and ordinances when
grounding. In the absence of these codes or ordinances
observe National Electrical Code ANSI/NFPA No. 70
current issue. See the following information in this section
for grounding method.
Electrical wiring diagrams and schematics have been
placed in the kick panel area of the range for access by a
qualified service technician (see Figure 27 on page 24).
The ranges are to be connected to a 240/208 VAC power
supply.
VOLTAGE CIRCUIT RATING
240/208 VAC
240/208 VAC
240/208 VAC
FREQUENCY
35 Amps
35 Amps
50 Amps
Table 3: Electrical Supply Circuit Requirements
Dual Fuel models must be connected to the power supply
utilizing one of the following methods. For all methods of
connection, the length of the cord or conduit/wiring must
allow the unit to be slid completely out of the cabinet
without having to unplug or disconnect the unit from the
power supply.
Recommended minimum free length of cord or conduit is
4ft (1.2 m). Electrical installations and grounding must be in
accordance with all local codes and ordinances, and/or the
National Electric Code, as applicable.
Permanent Connection (Hard Wiring)
Units may be hard wired to the power supply. The installer
must provide approved flexible aluminum conduit, ¾"
(19 mm) trade size, maximum 6ft (1.8 m) long.
Locate the terminal block on the rear of the unit and
remove cover (refer to Figure 10). The conduit must be
installed to the terminal block using an approved conduit
connector. The free end of the conduit must be connected
to a terminal block provided in the electrical supply zone,
as shown in Figure 4 on page 8.
Mount a strain relief (not provided) into the 1" (25.4 mm)
diameter hole located below the terminal block (see
Figure 10). Wiring for the unit is to be brought into the
terminal block through the conduit and through the strain
relief. The ends of the wiring must have 1/4" (6 mm) faston
closed-loop lugs attached, preferably soldered in place.
Make the connections to the terminal block provided.
If aluminum supply wiring exists in the installation, splice
the aluminum house wiring with appropriate-thickness
gauge copper wire for adapting to the range, using special
connectors designed and certified for joining copper and
aluminum wire. Follow the connector manufacturer's
recommended installation procedure.
Improper connection of aluminum house wiring can
result in a fire or shock hazard. Use only connectors
designed and certified for connecting to aluminum wire.
PHASE
60 Hz. Single
60 Hz. Single
60 Hz. Single
WARNING:
English 15