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Legacy Outdoor Temperature and Light Sensor
If the Savvy or EC system is using one of the 8 analog inputs for a Relative Humidity sensor, it may have been installed
with an external current limiting device (#680002000) connected in series with the sensor (See Fig. 4). Unlike the Savvy
or EC controller, the Novar ES3.S does not require an external current limiter for Relative Humidity sensors and should
therefore be removed during the Novar ES3.S installation.
If the site being upgraded to Novar ES3.S is currently utilizing an OTS (part # 70700000), digital light sensor (OLS) (part
# 70800000) they must be replaced. The OTS (part # 70700000) must be replaced with the OTS-2 (part # 735070000) or
equivalent. The OLS (part # 70800000) must be replaced with the ALS (part #'s 708100000, 708101000, 813000101) or
equivalent. If wiring was done with a 30VA transformer previously, it must be replaced with a 40VA transformer (part#
730090000).
Outside Light Sensor Connections
The Novar analog (4-20 mA) outdoor light sensor should be connected to the Novar ES3.S according to the following
instructions.
NOTE: The xcm.10S/ Savvy base-plate transition board is available in two versions. One displays the Underwriters Lab-
oratories, Inc., (UL) label at the top; the other does not. The terminals used for the Analog Light Sensor (ALS) con-
nections differ, depending on the version of the transition board being used. Use the appropriate procedure
outlined below.
Transition Board - with or without UL Mark
1. Connect the white (+) wire from the ALS to the transition board at:
• Board with UL Mark: Terminal #59 (+) at the Outdoor Light Sensor Input connections.
• Board without UL Mark: Terminal #62 (+) at the Outdoor Temperature Sensor Input connections.
2. Connect the black (-) wire from the ALS to the transition board at:
• Board with UL Mark: Terminal #58 (-) at the Outdoor Light Sensor Input connections.
• Board without UL Mark: Terminal #59 (+) at the Outdoor Light Sensor Input connections
3. Connect the shield wire from the ALS to the transition board at Terminal #61 (Shield).
4. Verify that the Outdoor Light Sensor current mode switch is in the enabled (on) position.
Optional Universal Input Wiring
If the Outdoor Light Sensor input is to be used in the optional Universal Input configuration mode, the input wiring will be
different than that used in current mode. Refer to the steps below for proper wiring.
Transition Board - with or without UL Label
1. Connect the signal wire (+) from a 0-10V source or, one terminal of a thermistor, resistive or dry contact digital type
input to the transition board at
• Board with UL Label: Terminal #58 (-) at the Outdoor Light Sensor Input connections.
• Board without UL Label: Terminal #59 (+) at the Outdoor Light Sensor Input connections
2. Connect the return or ground wire (-) from a 0-10V source or, one terminal of a thermistor, resistive or dry contact
digital type input to the transition board at:
• Board with UL Label: Terminal #61 (Shield) at the Outdoor Light Sensor Input connections.
Fig. 4. Current limiting device.
5
NOVAR ES3.S EXECUTIVE CONTROLLER
31-00366—01
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