Wilo Helix2.0-VE, Инструкция по установке и эксплуатации

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16 Installation and operating instructions • Drive for Wilo-Helix2.0-VE / Wilo-Medana CH3-LE • Ed.01/2022-06
Fig. 5:
Transporting the drive
• Only lift the drive with approved lifting gear (e.g. block and tackle, crane). See also
chapter "Transport and temporary storage".
• Transport lugs mounted on the motor housing are only permitted for transporting the
motor!
NOTICE
Simplify subsequent work on the unit!
To ensure the entire unit does not have to be emptied, install shut-off
valves upstream and downstream of the pump.
CAUTION
Material damage due to turbine and generator operation!
Flowing through the pump in the direction of flow or against the direction
of flow can cause irreparable damage to the drive. Install a swing check
valve on the discharge side of each pump!
6.6 Double pump installation A double pump can be two single pumps operated in one common collector pipe.
NOTICE
For double pumps in a common collector pipe, one pump should be con-
figured as the main pump. The pressure sensor should be mounted on
this pump. The Wilo Net bus communication cable should be also moun-
ted and configured on main pump.
P
Fig. 6:
Fig. 6: Example relative pressure sensor connection in common collector pipe.
Two single pumps as double pump in common collector pipe:
In the example in Fig. 6, the main pump is the left-hand pump in the direction of flow. Con-
nect the pressure sensor to this pump! Connect and configure the two single pumps to form
a double pump. See chapter "double pump operation".
The measuring points of the pressure sensor must be on discharge side of the double-pump
system in the common collector pipe.