Nederman FlexPAK, Руководство по настройке

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FlexPAK
DuctIsoDamp = On, see Section 3.1.12 Isolation
Damper Closing Duct and Section 4.2.37 DuctIs-
oDamp .
The damper must be NO (Normally Open), so
it is open when there no signal. This may re-
quire switching the function on NC dampers by
switching the compressed air connections or
similar.
8.1 Flush Cycle settings
One of the already occupied outputs is used to control
the Duct Closing Damper. Output DO12, is used to con-
trol Duct Isolation Damper; it is the same output that
controls Flush Valve 2.
If the Duct Isolation Damper is installed, it reduces the
flush function to only one flush valve, Flush Valve 1.
The software can still control both flush valves but
in this software, but the Flush Valve 2 setting is
changed.
8.1.1 FlushCy1(T) (Timer)
Control Flush Valve 1, has output DO5 Terminal 73 and
74.
This function is still in standard operation and set-
tings. Default setting T10 = 10 seconds.
8.1.2 FlushCy2(T) (Timer) (Dual Function)
Control Flush Valve 2 or Duct Isolation Damper, has
output DO12 Terminal 64 and 65.
This function is still in standard operation, the default
setting is changed and adapt to the Duct
Isolation Damper setting.
If you use DO12 to a Duct Isolation Damper, there is no
need to set FlushCy2(T). T=0 is the default.
1 Duct Isolation Damper setting
• T=0s (Default setting)
2 Flush Valve setting
• T=10s
8.2 Tuning Duct Isolation Damper se-
quence
Use Figure 3 as a reference when reading this tuning
description.
Normally the default setting is a proper starting point
to use and test the FlexPAK system. If a problem oc-
curs such as an unintended activation of the Duct Isol-
ation safety valve, it is time to consider tuning the
Duct Isolation Damper sequence.
8.2.1 FCDely(T) Parameter
Filter cleaning delay time is used to ensure that the
Duct Isolation Damper is closed before the first filter
cleaning (FC) pulse.
To set FCDely(T) parameter, it is necessary to know
how long time it takes for Duct Closing Damper to go
from Open to Closed.
Test the time it takes for the Duct Closing Damper to
close at the default Vacuum set point for the system.
Vacuum set points:
• FlexPAK 1000 = 20kPa
• FlexPAK 800 = 35kPa
Closing time is Approximately 5 seconds in a 35kPa va-
cuum.
8.2.2 FCDely(T) Parameter Calculation See,
Timing diagram
35kPa vacuum → Closing time = 5 seconds.
ClenCyl(TL) → TL = 3 seconds ( Load time is 3 seconds
to first FC pulse).
FCDely(T) = (Closing time) - (ClenCyl(TL)) = 5 - 3 = 2
seconds.
FCDely(T)T = 2 seconds.
T = 2s
→ 2 second delay before ClenCyl(TL) function
activates and 3 second load time before the first FC
pulse is activated.
8.2.3 Default FCDely(T) Parameter Settings
• TH = 1s Default setting (Do not change this para-
meter value!).
• TL = 2s Default setting.
• Ta = Elapsed time since FC Start Impulse was activ-
ated.
8.3 IsoVDly(T) Parameter Settings
Vacum Equalization Time
IsoVDly (T) is a delay timer to ensure a closed Duct
Isolation Damper until the vacuum in the filter housing
is higher than the duct system. Creating a high vacu-
um in the filter housing prevents a possible vacuum in
the duct system that could create a reverse flow of air
that triggers the Duct Isolation safety valve.
Always set IsoVDly(T) timer to a time longer
than ClenCyl(TH) parameter:
IsoVDly (T) = ClenCyl(TH) + X seconds.
X depends on the size of the pipe system
between the Duct Isolation
Damper and filter. Default is 4 seconds. In-
crease IsoVDly (T) parameter if a problem oc-
curs such as the unintended activation of the
Duct Isolation safety valve.
8.3.1 Default IsoVDly(T) Parameter Settings
TL= 4s delay after the third FC pulse occurs and be-
fore Duct Isolation Damper opens.
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