Toshiba Q9+ Installation & Operation Manual page 182

Virtual Linear Pump External Device Delay Timer
Program Virtual Linear Pump Run External Devices
External
Device 1
During a properly configured Virtual Linear Pump operation, this
parameter establishes the time that the Virtual Linear Pump
operating level must remain within the
mum (Threshold)
External
old) to activate/deactivate the Sleep Timer (F382) or an auxiliary
Device 2
pump.
See Figures 31
Linear Pump Maximum (Threshold)
Minimum
Increasing Load
If the Virtual Linear Pump operating level of the Lead Pump is
within the
External Device Delay Timer times out, OUT1 will change states
and activate an auxiliary pump (Lag1).
Should the Virtual Linear Pump operating level return to the
tual Linear Pump Maximum (Threshold)
in excess of the External Device Delay Timer, OUT2 will change
states and activate the second auxiliary pump (Lag2).
Decreasing Load
If operating in the
the External Device Delay Timer times out while OUT2 is acti-
vated, OUT2 will change states and deactivate the second auxil-
iary pump (Lag2).
Should the system return to the
(Threshold)
Timer, OUT1 will change states and deactivate the auxiliary
pump (Lag1).
Note: Set the Sleep Timer Delay (F383) to two (2) times the
Virtual Linear Pump External Device Delay Timer (if using
the Sleep Timer function) as not to place the primary ASD
in the sleep mode with Lag1 and/or Lag2 running.
Set OUT1 and OUT2 to External Device 1 and 2, respectively, as
required.
PUMP ID
Lead Pump
Lag1 Pump
Lag2 Pump
Lag2 Pump
Lag1 Pump
Lead Pump
170
Direct Access Parameter Information
Q9 Plus ASD Install/Op Manual
or the Virtual Linear Pump Minimum (Thresh-
and 33 for additional information on the
and the
(Threshold).
Virtual Linear Pump Maximum
Virtual Linear Pump Minimum
Virtual Linear Pump Minimum
for a duration in excess of the External Device Delay
Auxiliary Pump Activation Sequence
IF @ AND
Max Zone Counter Time = 0
Max Zone Counter Time = 0
Max Zone Counter Time = 0
Min Zone Counter Time = 0
Min Zone Counter Time = 0
Min Zone Counter Time = 0
–
F480 F481
Virtual Linear Pump Maxi-
Virtual
Virtual Linear Pump
(Threshold), and the
Vir-
threshold for a duration
(Threshold), and
THEN OR
Activate
OUT1
Activate
OUT2
Run
Continuous
Deactivate
OUT2
Deactivate
OUT1
Sleep if
—
enabled
F480
Direct Access Number —
Parameter Type — Numerical
Factory Default — 5.0
Changeable During Run — Yes
Minimum — 0.1
Maximum — 6553.5
Units — Seconds
Note: The number of pumps used
may be increased by using
the optional expansion board
(Primary pump plus auxiliary
pumps).
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