Robertshaw SLIMZONE ENVIRONMENTAL MODULE - Manual (Page 14)

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high balance point will cause the SZP control module to disable the auxiliary heat source,
and heating will be provided by the compressor only. An outside temperature that is below
the low balance point disables the compressor, and heating will be provided by the auxiliary
heat source only.
OUTDOOR TEMPERATURE PROBE INSTALLATION
Select a location for the outdoor probe that will provide accurate readings. Drill a hole to
feed the cable to the SZEM. Do not locate the probe where it will be influenced by sunlight.
The north side of the building or under the shadows of eaves are good locations. Avoid loca-
tions close to dryer vents or other sources of heat.
Mount the probe on the outside of the building using the screws and wall anchors provided
so that the tip is well away from the surface of the wall. The probe’s cable length is 8'
(2.4m); additional 2 conductor cable may be added to increase the length. Route the cable to
the SZEM module and connect the wires to the terminals marked ODT 1 and ODT 2 respec-
tively (polarity is unimportant).