Xylem TEKNOSPEED - Manual (Page 26)

If the water consumption decreases gradually, the system runs the pump at a slightly higher pressure for
approx. 60 seconds (with transmitter full scale equal to 10 bar ➞ + 0.2 bar), and then stops it if there is
no further water consumption.
If the system is powered the green (Power) light is on.
When the pump is running the yellow (Run) light is on.
If there is a shutdown or malfunction the red (Alarm) light comes on.
If an alarm is triggered, the red light will blink more or less rapidly depending on the cause of the shut-
down. Except for lack of water on the suction side, in all other cases the system will automatically start
again after 20 seconds. If the cause of the malfunction persists, after three attempts to restart the system
will definitively shut down.
Refer to experienced and qualified personnel for any adjustments and/or maintenance opera-
tions. Do not attempt to change the settings or open the control system.
Before using the equipment, read the manuals and store them safely.
Store the screwdriver supplied with the TKS system in a safe place.
7. Maintenance
Information for maintenance personnel
Observe the following directions if you need to carry out any service operations on the product .
Maintenance operations must be performed by qualified personnel only.
Before carrying out any maintenance operations, make sure that all the connections (even those
that are potential-free) are voltage-free.
Always disconnect the TEKNOSPEED converter from the power supply before carrying out any
operations on the system’s mechanical or electrical components.
After disconnection from the power source, wait at least 1 minute before carrying out any work on
TEKNOSPEED to allow the condensers in the internal circuit to discharge.
Read this user’s manual and the operating instructions for the electric pump and diaphragm tank
(if installed).
7.1 Routine Maintenance
The TKS system does not require any routine maintenance provided that the working limits described in
chapter 4 are observed.
The pumps do not require any routine maintenance (read the pump’s manual).
Check the air pre-charge in the surge tank, if installed, at least once a year (chapter 6.1.1).
7.2 Extraordinary Maintenance
Use adequate equipment and protections. Observe the accident prevention regulations in force.
Lift and handle the pumps carefully, using suitable hoisting equipment.
Use only original spare parts to replace any worn or faulty components.
WARNING !
Although the TKS system has a single-phase power supply, the pump’s motor is always a three-phase
motor connected to 230 V. The missing phases are created by the converter. For further information refer
to chapter 12.
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