Radiant Heating Elements; Range Top Components - GE Profile PB975 Technical Service Manual

Radiant Heating Elements

The radiant heating elements consist of spiral-
wound resistance wire attached to micro porous
insulation with molded ceramic fi ber walls in a
corrosion protected metal tray. A thermal limiter is
attached to the tray.
The thermal limiter is a temperature limit/hot light
switch attached to the heating element tray. The
glass tube and metal rod extend across the center
of the element. The rod's expansion and contraction
operate the contacts inside the switch.
The temperature limit/hot light switch performs two
functions:
1. Turns on the HOT LIGHT when the glass tube
and metal rod temperature exceeds 150°F. The
hot light will remain on until the glass tube and
metal rod temperature has cooled below 150°F
(even after the surface unit switch has been
turned off).
2. Detects when the glass temperature above a
unit has exceeded its limit of approximately
1031°F and disconnects power to that
unit. When the glass temperature cools
below 1031°F, the unit will turn back on. The
temperature limit/hot light switch cannot be
calibrated.
Note: A surface unit pilot (element on indicator)
light, located over the top of each surface unit
selector knob, will turn on immediately when the
surface unit is turned on. The light will remain on
until the surface unit is turned off.

Range Top Components

The heating elements operate using 240 VAC and
come in various sizes:
•
•
•
•
RR
Tri-ring
Tri-ring-6"
Tri-ring-9"
Tri-ring-12"
Bridge - both elements
Bridge - center element
LR
Warmer
*Ratings are approximate.
RR
RF - both elements
RF - inner element
LF - both elements
Inner element
LR
Warmer
*Ratings are approximate.
– 59 –
6"
Tri-ring (Triple 6", 9", and 12")
Bridge
Warming Zone
Surface Element Ratings* - Model PB975
Element Wattage
Surface Element Ratings* - Model PB970
Element
Resistance
1500 38.4 Ω
3000
19.2 Ω
1050 54.9 Ω
900 64 Ω
1050 54.9 Ω
2600 22.2 Ω
800 72 Ω
1800 32 Ω
120
443 Ω
Wattage Resistance
1500 38.4 Ω
3000 19.2 Ω
1950 29.5 Ω
2500 23 Ω
1000 57.6 Ω
1500 22.2 Ω
120
443 Ω