16
Figure 6.12
P/ N :16115 -1 B
pset 300
pact 380
• Now restart automatic operation by pressing Automatic on / manual off button.
6.5 Extra draw-off capacity
The DynaDrive has a pressure tank included as part of the system which will accommodate small leaks.
In some applications it may be appropriate to install an additional (or larger) accumulator (pressure tank)
capacity. These applications include:
• Long suction lines;
• Low flow appliances connected to the pump, such as evaporative air conditioners, slow filling toilet
cisterns, where flows can be a little as 0.5L/min (½ quart).
Any additional accumulators can be installed downstream of the controller (ie. between the controller and the
first outlet). Where extra draw-off capacity is utilised the additional pressure tank should have a pre-charge 70%
of the system set pressure. For installations requiring flow rates between 125-500mL/min (4 – 17oz/min), it is
common for the DynaDrive to run continuously. If this occurs, adjust up the min frequency setting (refer section
7.4) and install a larger pressure tank. If you have any further concerns, please contact your local Davey
representative.
6.6 Decommissioning the DynaDrive
Should it become necessary to decommission the DynaDrive to relocate the it, store it, or conduct some
service maintenance for example:
• Turn off the power to the DynaDrive and unplug it from electrical supply;
• Close any isolation valves on the suction side of the pump;
• Open a tap, or outlet on the delivery side of the pump and discharge excess pressure in the line;
• Close any isolation valves on the delivery side of the pump;
ATTENTION: It is essential that the system is de-pressurized before proceeding.
Failure to do so could result in harm to product &/or user.
• Unscrew the pressure tank from the top of the DynaDrive discharge/delivery outlet. NOTE: depending on
the installation it is possible that water may spill from the pipework and pressure tank. It would be good
practice to prepare for this;
• Unscrew pipework from the DynaDrive discharge/delivery outlet;
• Unscrew pipework from the DynaDrive suction inlet;
• Slide DynaDrive out of location.
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