Wilo Economy MHIE, Инструкция по установке и эксплуатации

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CAUTION! Danger of material damage!
The pump must not operate at zero flow (closed
discharge valve) for more than 10 minutes with
cold water (T°C < 40°C) and more than 5 minutes
beyond 60° C.
• We recommend to ensure a minimum flow of
about 10 % of the pump nominal flow to avoid
any vapour lock at the top of the pump.
• Open the discharge valve and start the pump.
• Check pressure stability at discharge with a
manometer, if instability, perfect air draining.
• In case of failure, do the filling in again and start
the operation again.
• Check that the current input does not exceed
the value indicated on the motor-converter data
plate.
8.4 Operation of the converter
8.4.1 Control elements
The converter is controlled using the following
control elements:
Rotary knob
• Selecting a new parameter only requires rotating
the knob in direction “+” to the right or “-” to
the left.
• A short impulse on the rotary knob confirms this
new setting.
DIP switches
This converter has a block of five DIP switches
(Fig. 1D, pos. 1) each with two positions.
• DIP switch 1 switches from “OPERATION”
mode [DIP switch 1 OFF] to “SERVICE” mode
[DIP switch 1 ON] and back again. The
“OPERATION” position authorises the opera-
tion of the chosen mode and stops access to
the parameterisation (normal operation). The
“SERVICE” position allows the user to carry out
parameterisation of the different operations.
• DIP switch 2 is used to activate or deactivate the
“Access lock” (see section 8.3.6.5).
• DIP switches 3 and 4 must be kept in the
ON position.
• DIP switch 5 is not used and must be kept in the
OFF position.
Relay
(see section 10)
1 2 3 4 5
ON
8. Commissioning
8.1 Preliminary rinsing
The hydraulic features of every pump is tested
in factory, some water may remain in them. It
is recommended for hygien purposes, to carry
out a rinsing of the pump before any using with
potable water supply.
8.2 Filling – degassing
CAUTION! Danger of material damage!
Never operate the pump dry, even briefly !
Pump in load (Fig. 2).
• Close the discharge valve (rep. 3).
• Open the venting plug (rep. 5), the suction valve
(rep. 2) and completely fill the pump.
• Close the venting plug only after water flows out
and complete aeration.
WARNING! Danger of burn!
In hot water, a stream of water may escape from
the venting plug port.
• Take all required precautions as regards persons
and motor-converter.
Pump in suction (Fig. 1, 4).
Two possible cases:
1st case (Fig. 4.1).
• Close the discharge valve (Fig. 1, rep. 3), open
the suction valve (Fig. 1, rep. 2).
• Remove the venting plug (Fig. 1, rep. 5).
• Unscrew about 4 turns the bottom drain-priming
plug (Fig. 1, rep. 6) located on the pump casing.
• Put a funnel into the venting plug port and com-
pletely fill the pump and the suction pipe.
• After water flows out and total air exit, filling is
achieved.
• Screw the venting plug and the bottom
drain-priming plug back in.
2st case (Fig. 4.2).
• Filling can be made easier by fitting a vertical
pipe (Fig. 4, rep. 12) fitted with a Ø ½» stopcock
and a funnel, on the suction pipe of the pump.
• Close the discharge valve (Fig. 1, rep. 3), open
the suction valve (Fig. 1, rep. 2).
• Open the stopcock (Fig. 4, rep. 12) and the filling
plug (Fig. 1, rep. 5).
• Fill the pump and the suction pipe completely
until water flows out of the filling plug and air
bubbles have completely disappeared.
• Close the stopcock (Fig. 4, rep. 12) (which can
be left in place), remove the pipe and screw the
filling plug back in (Fig. 1, itrep. 5).
8.3 Starting up
WARNING! Danger of burn!
Depending on conveyed fluid and the operating
cycles of the pump, surface temperature (pump,
motor) can exceed 68°C.
• Take necessary means to avoid injuries !
English
WILO SE 11/2019