Connect The Ac Pump To An Existing Three Phase Net; Commissioning; Filling And Bleeding - Wilo Yonos PARA High Flow Série Notice De Montage Et De Mise En Service

DANGER! Life-threatening danger posed by electric shock
If the mains and SSM cores are both in the same 5-wire cable (Tab. 7.2.2, version 2), the
SSM core may not be operated with protective low voltage, otherwise there could be
voltage transmission.

7.2.3 Connect the AC pump to an existing three phase net

Mains connection 3~230 V:
L1, L2, L3 and PE available. No neutral conductor N.
The voltage between any two phases must be 230 V.
NOTE: Make sure that 230 V is applied between the phases (L1-L2, L1-L3 or L2-L3).
Two phases (L1-L2, L1-L3 or L2-L3) are to be applied at the terminals L and N of the plug.
Mains connection 3~400 V:
1. L1, L2, L3, PE and neutral conductor N available (fig. 5).
The voltage between the neutral conductor (N) and any phase (L1, L2 or L3) must be
230 V.
2. L1, L2, L3 and PE available. No neutral conductor N.
The pump must have a mains transformer (accessory) connected upstream for pro-
viding the connection 1~230 V (L/N/PE).

8 Commissioning

Do not fail to observe the danger information and warnings in chapters 7, 8.5 and 9!
Prior to commissioning the pump, check that it was installed and connected correctly.
8.1

Filling and bleeding

NOTE: Incomplete bleeding will result in noises in the pump and unit.
Properly fill and bleed the system. The pump rotor compartment is vented automatically
after a short operating period. Dry running for short periods will not harm the pump.
NOTE: The pump body can be vented by briefly switching to speed stage 3 (maximum
speed stage).
WARNING! Risk of injury and damage to property!
It is not permitted to remove the motor head or the flange connection / threaded pipe
union for the purpose of bleeding the system!
• There is a risk of scalding!
Escaping fluid can lead to injuries and damage to property.
• Touching the pump can cause burns!
Depending on the operating status of the pump or unit (fluid temperature), the entire
pump can become very hot.
Installation and operating instructions Wilo-Yonos PARA High Flow
English
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