STEP 1.
STEP 2.
STEP 3.
The rear panel and the front bottom toe kick grill
need to be removed. If the unit is installed, then it
needs to be pulled out. The mullion heater ohms out
around 1500 ohms. When connected, it draws very
low amps, around .08.
Remove the rear panel and locate the 3 plugs on the
right side ceiling. All plugs should be secured firmly
to the ceiling. The third plug back (closest to the
condenser fan motor) is for the mullion heater. The
red female push on connectors are not hooked up. It
could be bundled with a zip tie; if so, cut the zip tie
and straighten the wires out.
The white mullion heater wire with the red female
push on connector will connect to a blue male
push on connector that has a white cap. The blue
connector will have two white wires connected to
it.
You should be able to see the blue connector
through the front with the toe kick grill removed.
One of the white wires is coming from the
compressor electricals.
The wires can be pushed over the compressor
from the front or pulled from the rear by locating
the white wire coming off the compressor.
Return to
Residential Refrigeration
and Front Venting Commercial Refrigeration
Service Manual
8.10
Mullion Heater Hook-Up
Electrical System Repair Instructions
Page 8-34
Mullion Heater Plug
Blue Male Push on Connector
with 2 White Wires
Compressor
Electricals
