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

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Installation and operating instructions • Drive for Wilo-Helix2.0-VE / Wilo-Medana CH3-LE • Ed.01/2022-06 85
19.2 Replacing the motor
NOTICE
The magnets inside the motor pose no risk to persons with pacemakers
provided that the motor is not opened and the rotor is not removed. The
motor/drive can be replaced without any risk.
• Carry out this steps to dismantle the motor on Helix2.0 range.
• Remove the inverter as described in Chapter 19.1
• Remove the 4 screws (Fig. 1, rep. 5) and pull the motor (Fig. 1, rep. 8) vertically upwards.
• Before reinstalling the new motor, align the motor key shaft (Fig. 1, rep. 11) with the
lantern (fig. 1, rep. 12).
• Press the new motor into the lantern and fasten with screws.
NOTICE
The motor must be pressed on as far as possible when it is installed.
DANGER
Risk of fatal injury!
There is a risk of fatal injury from electric shock when working on
electrical devices. Following removal of the electronic module, a po-
tentially fatal shock voltage may be present at the motor contacts.
Ensure system is voltage-free, cover or screen off adjacent live parts.
Close the shut-off devices upstream and downstream of the pump.
NOTICE
Increased bearing noises and unusual vibrations indicate bearing wear.
Then the bearing has to be changed by Wilo customer service.
WARNING
Risk of personal injury!
Opening the motor leads to high, suddenly occurring magnetic forces.
These can cause serious cuts, crushing injuries and bruises.
Do not open the motor!
Only allow Wilo customer service to dismantle and install the motor
flange and the bearing plate for maintenance and repair work.
19.3 Replacement fan electronic mod-
ule Remove the module, see section "Replacing the electronic module".open the cover of the
electronic module.
• Open the cover of the electronic module (Fig. 27).
• Disconnect the fan connection cable.(Fig. 28).
• Loosen the screws of the fan (Fig. 29).
• Remove the fan and release the cable with the rubber sleeve from the lower part of the
module (Fig. 30).