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and RS+V). There are no switches to set. The thermostat detects the remote sensor connection
and controls temperature based on the data received.
PERIMETER HEAT
The W1 and R terminals on the DSL-520P are designated for use with perimeter heat, one for
each zone. The perimeter heat will be activated when the thermostat requests heat and the SZP
control module is not demanding heat from the main heating source.
Terminal
R
W1
RS2, RS1
RS+V
1-4
DSL-520P OUTPUT TERMINALS, LED DESIGNATIONS
Function
24VAC input for perimeter heat
Perimeter heat dry contact output
Indoor remote sensor connections. Refer to the instructions
included with the sensor.
Communication terminals to the SZP control module. The termi-
nals must be connected 1-1, 2-2, 3-3, 4-4 to function and prevent
damage.
6
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