Thermador PRSG304 Installation Instructions Manual page 17

STEP 6: ELECTRICAL REQUIREMENTS, CONNECTION & GROUNDING
Dual Fuel range models PRSE304, PRSE36 and PRSE48 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 four feet. Electrical
installations and grounding must be in in accordance with all local codes and ordinances, and/or the National
Electric Code, as applicable.
• 3-CONDUCTOR CORD - Where
local codes and ordinances permit
grounding through neutral, unit
may be connected to the power
supply with a 3-pole, 3-conductor
cord kit rated 125/250 volts, 50
amperes, and marked for use with
ranges. The cord kit must be
attached to the range junction box
with a strain relief which will fit a
1-3/8" diameter hole. If not
already equipped, the cord must
have #10 closed-loop lugs attached
to the free ends of the individual
conductors, preferable soldered in
place.
Locate the junction box on the rear
of the unit and remove cover. Refer
to Fig. 16 for PRSE304 range and
Fig. 16a for PRSE36 and PRSE48
ranges. Remove the knock out ring
in the junction box to provide a 1-
3/8" diameter hole. Install the
cord to the junction box, and make
the connections to the terminal
block provided. Refer to Figures 17
and 17a. The cord kit must be
plugged into a mating NEMA 10-
50R receptacle provided in the gas
and electrical supply zone, as
shown in Figures 3b and 3c on
Page 6.
• 4-CONDUCTOR CORD - Where
local codes and ordinances DO
NOT PERMIT GROUNDING
THROUGH NEUTRAL, unit must
be connected to the power supply
with a 3-pole, 4-conductor cord kit
rated 125/250 volts, 50 amperes,
and marked for use with ranges.
The cord kit must be attached to
the range junction box with a
strain relief which will fit a 1-3/8"
diameter hole. If not already
equipped, the cord must have #10
closed-loop lugs attached to the
free ends of the individual conduc-
tors, preferable soldered in place.
Locate the junction box on the rear
of the unit and remove cover. Refer
to Fig. 16 for PRSE304 range and
Fig. 16a for PRSE36 and PRSE48
ranges. Remove the knock out ring
in the junction box to provide a 1-
3/8" diameter hole. Remove the
ground strap retaining screw and
bend the ground strap up. Refer to
Fig. 18. Install the cord to the
junction box, and make the
connections to the terminal block
provided. Secure the ground lead
from the cord to the junction
box with the screw previously
used to secure the ground
strap. Refer to Fig. 18a. The
cord kit must be plugged into
a mating NEMA 14-50R
receptacle provided in the gas
and electrical supply zone, as
shown in Figures 3b and 3c
on Page 6.
• PERMANENT CONNECTION
(HARD-WIRING) - Units may
be hard wired to the power
supply. The installer must
provide approved flexible
aluminum conduit, 3/4" trade
size, maximum 6 feet long.
Locate the junction box on
the rear of the unit and
remove cover. Refer to Fig. 16
for PRSE304 range and Fig.
16a for PRSE36 and PRSE48
ranges. Remove the ground
strap retaining screw and
bend the ground strap up.
Refer to Fig. 18. The conduit
must be installed to the
junction box using an
approved conduit connector.
Wiring for the unit is to be
brought into the junction box
through the conduit. Refer to
Chart D on page 16 for rating
of wiring and sizing of
individual conductors. The
ends of the wiring must have
#10 closed-loop lugs at-
tached, preferable soldered in
place. Make the connections
Page 17
to the terminal block provided.
Secure the ground lead to the
junction box with the screw
previously used to secure the
ground strap. Refer to Fig. 18a.
The free end of the conduit must
be connected to a junction box
provided in the gas and electrical
supply zone, as shown in Figures
3b and 3c on page 6.
FIG. 16
Location of Junction Box on
PRES304 Range
8"
Hole for
6"
Connection of
Width
Cord or Conduit
of J-Box
FIG.
16a Location of Junction Box on
PRSE36, 48
MODEL
PRSE36
PRSE48
Hole for Con-
nection of Cord
or Conduit
6" Width of J-Box
DIM. "A"
13-1/4"
19"