Watts AERCO Edge [ii] - Page 120

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 120 of 196
6b VSP Pump Off Delay (Item 6 ≠ Off)
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6c VSP Pump Output (Item 6 ≠ Off)
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6d VSP Pump Relay (Item 6 ≠ Off)
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6e VSP Piping Configuration (Item 6 = Fire Rate)
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6f Boiler Plant Size (Item 6 = Fire Rate)
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6g Plant VSP Pump min spd (Item 6 = Fire Rate)
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6h Plant VSP Pump max spd (Item 6 = Fire Rate)
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6i Rem Blr VS Pump Add (Item 6 = Fire Rate)
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6j VSP Pump Decrease (Item 6 = Return Temp)
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6k VSP Pump Decr Time (Item 6 = Return Temp
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6l VSP Pump Incr Time (Item 6 = Return Temp
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6m VSP Pump Off Delay (Item 6 = Return Temp
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• Item 1: Auto-Manager Transfer: If enabled, BST Manager functionality can be
transferred to a designated Backup Manager. The Backup Manager must be
connected to all system level sensors, either via dual lead sensors or via Modbus
wiring. When enabled, the following additional parameters appear:
o Item 1a: Auto-Manager Timer: Specifies the time before switching over
Manager functionality. (Range: 10 to 120 seconds, Default = 30)
o Item 1b: Auto-Manager Addr: A read-only display of the address of the current
BST Manager.
o Item 1c: Backup Manager Addr: Enter the address of the unit designated as
the Backup Manager. It can be any address above 0 except the value of Auto-
Manager Addr. (Range: 0 to 16)
• Item 2: Hdr Temp Sensor: If plant operation is based on feedback from the
Header Temp Sensor, choose how to communicate with the sensor:
o Network: Choose this option if the Header Temp Sensor is wired to the Modbus
transmitter. If chosen, the following additional parameter appears:
▪ Item 2a: SH Hdr Temp Point: The Modbus point within the Modbus
address of the Header Temp Sensor (Range: 0 to 255, default = 14).
▪ Item 2b: SH Sensor Comm Addr: Specifies the Modbus transmitter
address (common to all Modbus sensors). (Range: 0 to 255, default = 240)
o FFWD Temp: Choose this option only if Control Type = C-More (in Section
6.2.1: Unit Settings); FFWD is the direct connect option in the C-More.
o Direct: Choose this option if the Modbus transmitter is connected directly to the
unit.
o BAS: Choose this option if header temperature is received from the site’s Building
Automation System.
o OFF: Disables header temperature sensor feedback functionality.
• Item 3: DHW Temp Sensor: Choose how to communicate with the sensor:
o Off: Disables DHW temperature sensor functionality.
o Network: Choose this option if DHW temp sensor is wired to the Modbus
transmitter. If chosen, the following additional parameter appears:
▪ Item 3a: DHW Hdr Sens Point: Specify the Modbus point within the
Modbus address where the DHW temp sensor resides.
(Range: 0 to 255, default = 17)