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Edge [ii] Controller Operation Manual

SECTION 6 – ADVANCED SETUP

OMM-139_E • 8/25/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 162 of 196

Setpoint Range

The Setpoint Range screen includes all Setpoint and Setpoint Setback parameters that apply

to this unit only. This screen includes ? (Help) functionality.

NOTE

• Many of this screen’s parameters also appear in Section 6.3.4.6: Setpoint Range, which

is available only to units configured as a BST Client or BST Manager. That section is

available when this section is unavailable (see previous bullet).

• The parameters that appear on this screen depend on which Application is chosen in

Section 6.2.6: Unit Application Configuration.

1. Go to: Main Menu → Advanced Setup → Performance → Temperature Control →

Setpoint Range.

Application = Space Heating Application = Other

Figure 6.6.2.3: Temperature Control: Standalone Setpoint Range

2. Configure Unit Setpoint Low Limit and Unit Setpoint High Limit parameters (the names

include SH, DHW or Other, depending on the Unit Application chosen in Section 6.2.6:

Unit Application Configuration). Taken together, these two parameters determine the

temperature range within which the setpoint for the chosen Application can vary.

• Unit SH Setpt Low Limit

• Unit DHW Setpt Low Limit

• Unit Other Setpt Low Limit

Sets the minimum Setpoint Limiting temperature.

(Range: 20 to 245°F or Unit Setpt High Limit)

• Unit SH Setpt High Limit

• Unit DHW Setpt High Limit

• Unit Other Setpt High Limit

Sets the maximum Setpoint Limiting temperature.

(Range: 20 or Unit Setpt Low Limit up to 245°F)

3. The following Setpoint parameters are available for all value of the Unit Application

parameter:

• Setpoint Limiting: If Enabled, the Setpoint Limit Band appears (see below) and

Setpoint Limit functionality is enabled. This functionality acts as a temperature limiting

governor. Should a unit’s outlet temperature equal Setpoint High Limit, a PID function

will intervene and maintain the outlet temperature at the Setpoint High Limit minus the

Setpoint Limit Band:

Watts AERCO Edge [ii] User Manual

Questions and Answers: