Watts AERCO Edge [ii] Operation Manual page 128

Edge [ii] Controller Operation Manual
SECTION 6 – ADVANCED SETUP
TABLE 6.11: Parameter Descriptions
Item Name
13 Warm Weather Shutdown
14 DHW Rem Setpt Source
15 OAR Min Outside Temp
16 OAR Max Setpoint
17 OAR Max Outside Temp
18 OAR Min Setpoint
19 Unit x Designation (x=1 to 16)
20 Default Swing Boiler Load
21 SH Swg Vlv Unit Add
22 DHW Swg Vlv Unit Add
23 DHW Pump Unit Address
24 DHW Setup
25 DHW Pump Control Type
26 DHW Pump Off Time
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OMM-139_E 8/25/2020
Description
(Application = 1, 3 – 7, SH Operating Mode = Outdoor Air
Reset, Outdoor Air Temp Sens ≠OFF in Cascade Configuration
screen) The threshold outside temperature above which the unit
shuts down. For example, if set to 65°F, when the outside
temperature is below 65°F the unit is in standby, but shuts down
when the temperature goes above 65°F. (Range: 30°F to 120°F)
(Application = 2, 4 - 6, 8; DHW Rem Setpt Signal = 1-5V or 0-
5V) Choose the remote setpoint source: Spare Analog In 1,
Spare Analog In 2 or Spare Analog In 3.
(Application = 1, 4 - 7, SH Operating Mode = Outdoor Air
Reset) The minimum outside air temperature the system will
read; it interacts with the OAR Max Setpoint. For example, if
OAR Min Outside Temp is set to -5°F and OAR Max Setpoint
is 180°F, when the outside temperature is -5°F or below, the
system will supply 180°F. (Range: -40°F to 140°F)
(Range: OAR Min Setpoint up to 210°F)
(Application = 1, , 4 - 7, SH Operating Mode = Outdoor Air
Reset) Outdoor Air Reset Maximum Outside Temperature that
the system will operate to. For example: if set to 60°F, the boiler
will operate between 60°F outside temperature and OAR Min
Outside Temp setting. (Range: -40°F to 140°F)
(Application = 1, , 4 - 7, SH Operating Mode = Outdoor Air
Reset) The minimum allowable setpoint.
(Range: 20°F to Max Outside Temp)
(Application = 4, 5) Choose the designation for each unit in the
BST cascade: SH, DHW or Swing.
(Application = 4, 5) Choose Swing Default SH or Swing
Default DHW. Specifies whether the swing units serve the
Space Heating side or DHW side when there is no DHW load, or
the unit(s) dedicated to DHW can keep up with DHW load.
(Application = 4, 5) The address of the unit to which valve V1 is
connected. (Range: 0 to 16)
(Application = 4) The address of unit to which valve V2 is
connected. (Range: 0 to 16)
(Application = 2, 4 – 8) The address of unit that controls the
DHW pump. (Range: 0 to 16)
(Application = 2, 4, 5) Choose one of the following: 2 Port
Tank, 4 Port Tank or Indirect Tank.
(Application = 2, 4 – 8) Choose between Constant On (even
when unit or plant is in standby) or Controlled (based on DHW
temp sensor feedback).
(Application = 2, 4 – 6) The minimum time the DHW pump must
stay off before restarting after being turned off. (Range: 0 to 600
sec.)
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