iWorx® PSU1
24
505-012, Effective: August 10, 2012
© 2012 Taco Electronic Solutions, Inc.
Commissioning
This screen displays PSU1 settings related to this topic and allows access to all of these settings from a single screen.
Pump Mod Set
This screen displays PSU1 settings related to this topic and allows access to all of these settings from a single screen.
Water Temp Alm
This screen displays PSU1 settings related to this topic and allows access to all of these settings from a single screen.
Auto Recovery
This screen displays PSU1 settings related to Auto Flow Recovery and provides access to all of these settings from a
single screen.
Setting
Range
Default
Description
Pump 1 Comm
Disable,
Enable,
Auto
Auto
Disable = Off, Enable = On, Auto = Automatic
Operation
Pump 2 Comm
Disable,
Enable,
Auto
Auto
Disable = Off, Enable = On, Auto = Automatic
Operation
Pump 1 Mod
0 to 100%
0%
Sets the pump 1 modulation level when
Pump 1 Comm is set to “Enable”
Pump 2 Mod
0 to 100%
0%
Sets the pump 2 modulation level when
Pump 2 Comm is set to “Enable”
Setting
Range
Default
Description
Gain
-4 to +5
0
Sets PI loop gain
On
0 to 100%
50%
Minimum modulation level while pump is on.
Modulation level will be 0% when pump is off
and will vary between "On" and 100% when
pump is on.
Ramp Up
0.00 to 20.00%
1.00%
Ramp up percent per second
Ramp Down
0.00 to 20.00%
0.5%
Ramp down percent per second
Out Min
0.0 to 10.0 V
0.0 V
Minimum output voltage for modulated pump
outputs corresponding to a modulation level
of 0%.
Out Max
0.0 to 10.0 V
0.0 V
Maximum output voltage for modulated pump
outputs corresponding to a modulation level
of 100%.
Setting
Range
Default
Description
High Limit
32.0 to 212°F
(0 to 100°C)
32 °F
(0.0°C)
Supply and return water temperature high
alarm limit
Low Limit
32.0 to 212°F
(0 to 100°C)
32 °F
(0.0°C)
Supply and return water temperature low
alarm limit
Setting
Range
Default
Description
Enable
Off, On
On
Enable Auto Flow Recovery
Number Restarts
0 to 4
4
Maximum number of system restart attempts
