Robertshaw SLIMZONE ENVIRONMENTAL MODULE - Manual (Page 13)

TEMPERATURE PROBE INSTALLATION
Drill a 1/4" (4mm) hole into the ductwork at a recommended distance of 6" to 8" (15cm –
20cm) downstream from the coil, but before the bypass damper. Push the end of the wire
with the probe and fastener into the hole until the fastener touches the ductwork. Secure
using the two #8 sheet metal screws with anchors provided with the probe. Connect the
opposite end of the wires to the Duct 1 and Duct 2 terminals on the environmental module
(polarity is unimportant).
IMPORTANT!
If the SZEM module is to be installed without the duct temperature probe, set the low limit
setpoint down to a value of 21°F (-6°C) in order to ensure the low limit alarm will not be
triggered. The SZEM module will read a value of approximately 21°F (-6°C) when the duct
temperature probe is not connected.
OUTDOOR TEMPERATURE PROBE OPERATION AND INSTALLATION
OPERATION
The SZEM module measures the outdoor temperature using a temperature probe, with a
range of -55°F to 118°F (-48°C to 48°C). The module communicates this information to the
SZP control module via the communication link, which in turn makes this information avail-
able to the DSL-520P zone thermostats.
In the heat pump mode, the SZP control module uses the outdoor temperature to monitor
deviation from the maximum and minimum balance points. These balance points are pro-
grammed by the user at the SZP control module. An outside temperature that exceeds the
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