Wilo Flumen EXCEL-TRE 50-3 90-2 Series, Installation And Operating Instructions Manual

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Installation and operating instructions • Wilo-Flumen OPTI-TR 50-3 ... 120-1, Wilo-Flumen EXCEL-TRE 50-3 ... 90-2 • Ed.01/2022-07 13
sure-tight against the fluid and is sealed longitudinally watertight. The connection cable
has bare cable ends and is 10 m (33 ft) long as standard.
Wilo-Flumen EXCEL-TRE ...
Surface-cooled submersible motor in three-phase current design with permanently lubric-
ated und large-size rolling bearings. The motor winding is equipped with temperature
monitoring. The motor heat is given off directly to the surrounding fluid via the motor
housing. The connection cable is designed for heavy mechanical loads, sealed water pres-
sure-tight against the fluid and is sealed longitudinally watertight. The connection cable
has bare cable ends and is 10 m (33 ft) long as standard.
The submersible motor meets the IE3/IE4 motor efficiency class (according to
IEC 60034-30). Motors of the motor efficiency class “IE4” have been specified as “E4” in
the motor designation.
Technical data
Operating mode, immersed S1
Operating mode, non-immersed -
Fluid temperature 3 … 40 °C (37 … 104 °F)
Max. immersion depth 20 m (66 ft)
Protection class IP68
Insulation class H
Max. switching frequency 15/h
5.1.2 Gear Single-stage planetary gear with exchangeable transmission. Gear bearings have been di-
mensioned large to absorb resulting stirring forces and not transfer these to the motor
bearing.
5.1.3 Seal The system is sealed by a 3-chamber system:
• Pre-chamber
The high-volume pre-chamber has been filled with gear oil to absorb any leakage at the
seal on the fluid side. A mechanical seal is used as the seal on the fluid side. A rotary
shaft seal seals towards the gear chamber.
• Gear chamber
The gear chamber has been filled with gear oil to guarantee continuous lubrication of
the planetary gear and the gear bearings. A mechanical seal seals towards the sealing
chamber.
• Sealing chamber
The high-volume sealing chamber is filled with white oil and absorbs any leakage from
the gear chamber. A rotary shaft seal seals towards the motor.
5.1.4 Propeller Propeller made of solid or composite material with clogging-free propeller geometry.
OPTI-TR 50-3 ... EXCEL-TRE 50-3 ... OPTI-TR 60-3 ... EXCEL-TRE 60-3 ... OPTI-TR 80-3 ... OPTI-TR 90-2 ... EXCEL-TRE 90-2 ... OPTI-TR 120-1 ...
Nominal diameter in mm (in) 500
(20) 500
(20) 600
(23.5) 600
(23.5) 800
(31.5) 900
(35.5) 900
(35.5) 1200
(47)
Number of blades 3 3 3 3 3 2 2 3