Lead/Lag - Watts AERCO Edge [ii] Operation Manual

Edge [ii] Controller Operation Manual
SECTION 6 – ADVANCED SETUP
Setpoint Limit Band: Sets the number of degrees below Setpoint High Limit the
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unit's outlet temperature must fall before the unit restarts (Range = 0°F to 10°F)
4. Set the Setpoint Schedule parameter to Enabled to Disabled. If Enabled, this feature
will lower the Setpoint during periods of reduced demand for heat, such as at night. If
Enabled, the following additional parameters appear (these same three parameter also
appear in Section 6.6.2.3: Setpoint Range
Setback Setpoint: The Setpoint that will be in effect during the Setback period.
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(Range = 60°F to 245°F)
Setback Start Time: The Setback period's start time (example: 11:00 PM).
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Setback Stop Time: The Setback period's end time (example: 5:00 AM).
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Lead/Lag

The Lead/Lag screen allows you to create a Lead/Lag profile that the BST Cascade will follow.
NOTE:
This screen is available only after BST Cascade functionality has been enabled (see the
Unit Mode parameter in
a BST Manager, the parameters apply to this unit and all BST Client units. If the unit is
configured as a BST Client, the parameters configured on the BST Manager will take
precedence.
Main Menu → Advanced Setup → BST Cascade → Operating Controls →
1. Go to:
Lead/Lag.
Figure 6.3.4.7: Operating Controls: Lead/Lag Control Screen
2. Set the Lead/Lag Setting to one of the following (default = Run Hours):
Run Hours: The Hours parameter appears; specify the number of hours after which
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the Lead unit is rotated. (Range: 25 - 225)
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Unit Size: Perform Lead/Lag based on unit size, starting with the smallest unit
capacity.
Select Lead/Lag: The Lead Unit and Lag Unit parameters appear. Specify the
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address of the Lead and Lag units. (Range: 0 to 127)
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OMM-139_E 8/25/2020
and can be changed in either screen):
Section 6.3.1: Cascade
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
Configuration). If the unit is configured as
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