Wilo Yonos MAXO Series, Инструкция по установке и эксплуатации

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EN
Connect
20
DN 65 DN 80 DN 100
Screw diameter M16
Strength class ≥ 4.6
Tightening torque 95 Nm
Screw length ≥ 65 mm ≥ 70 mm
Never interconnect 2 combination flanges.
5.6 Insulate
Only utilise thermal insulation shell in heating applica-
tions with fluid temperature > 20 °C.
During cold and air-conditioning applications use stand-
ard, diffusion-proof insulation materials. Empty conden-
sation drain ➜ Fig.
11
.
5.7 Following installation
◾ Check impermeability of the pipe/flange connection.
6 Connect
6.1 Personnel requisition
The electrical connection may only be performed by a
qualified electrician.
6.2 Requirements
ATTENTION
Wrong connection of the pump leads to damage to the
electronics.
◾ Observe voltage rating on the rating plate.
◾ Maximum back-up fuse: 10 A, inactive or circuit breaker
with C characteristic
◾ Never connect to an uninterruptible power supply or
IT-networks.
◾ During external connection of the pump deactivate a
pulse of the voltage (for example phase angle control).
◾ Switching the pump via triacs/solid-state relays must be
examined on a case-by-case basis.
◾ During deactivation with on-site power relay:
Rated current ≥ 10 A, rated voltage 250 V AC
◾ Note switching frequency:
– Switching on/off mains voltage ≤ 100/24 h
– ≤ 20/h at a switching frequency of 1 min between
switching on/off via mains voltage
◾ Secure pump with a residual-current device (type A or B).
◾ Leakage current I
eff
≤ 3.5 mA
◾ The electrical connection must be made via a fixed
connecting cable equipped with a connector device or an
all-pole switch with a contact opening width of at least
3 mm (VDE 0700/Part 1).
◾ To protect against leakage and for strain relief to the
threaded cable connection use a connection pipe with
sufficient outer diameter ➜ Fig.
15
.
◾ Use a heat-resistant connecting cable where fluid tem -
peratures exceed 90 °C.
◾ Lay the connection pipe in such a way that it touches
neither the pipes nor the pump.