Page 75
Figure 29. External Set Point Example
8.D.9.a External – Remote Set Point.
External (0 – 10VDC or 4 – 20mA)
•
An External heat demand can be initiated by a Building Management System (BMS) using a 0-10VDC or 4-20mA
signal. This input can be configured for Remote Set Point or Remote Firing Rate operations.
•
With Remote Set Point selected, the unit will initiate a heat demand once the analog input signal exceeds the
Demand On value. Once the demand is initiated, the analog input signal must be lower than Demand Off to remove
the heat demand. With an active demand, the unit will locate the set point according to the analog input signal.
•
Using the default values for Boiler Max Set Point (180°F), Boiler Min Set Point (140°F), Demand Minimum (2.5VDC),
Demand Maximum (10.0VDC), the unit will linearize the set point, as shown in
Figure 29
.
C O N F I G U R AT I O N
8.D.10 Time & Date
To navigate to the Time & Date Screen, touch the Time and Date area of ANY Screen.
The Time & Date Quick Start Screen allows adjustment of the following parameters:
• Hour
• Minute
• Month
• Day
• Year
NOTE: The Time is set in a 24 hour parameter but displays only as a 12 hour clock with the AM / PM automatically added.
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