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6
Description and function
6.1
Description of the product
6.2
Product characteristics
7
Installation and electrical con-
nection
Installation and operating instructions Wilo-Medana CH1-L, Wilo-Medana CH3-LE
Description and function
Fields of application:
Version with stainless steel housing:
MEDANA CH1-L
Distribution and boosting
Industrial systems
Cooling water circulation systems
Irrigation systems
See Fig. 1
1.
Suction port
2.
Pressure port
3.
Filler screw
4.
Drainage screw
5.
Stage casing
6.
Impeller
7.
Hydraulic shaft
8.
Suction housing
9.
Mechanical seal
10. Terminal box
11. Lantern
12. Condensate plugs
13. Variator
See Fig. 3a
1.
Valve on the suction side
2.
Valve on the discharge side
3.
Non-return valve
4.
Filler screw
5.
Drainage screw
6.
Piping or clamp holders
7.
Strainer
8.
Tank
9.
Mains water supply
10. Motor protection switch
11. Lifting hook
ƒ
Multistage centrifugal pump with horizontal axle (2 to 7 stages depending on the
model), non-self-priming.
ƒ
Suction/discharge ports with screwed connections. Axial suction, radial discharge
upwards.
ƒ
Shaft sealing with standardised mechanical seal.
ƒ
Integrated thermal motor protection (single-phase version), automatic reset.
ƒ
Condenser integrated into the terminal box (single-phase version).
ƒ
To move only the pump, use straps that are securely fastened to the motor trans-
port lugs ≥ 4.2 kw (Fig. 8).
All installation and electrical connection work must be carried out solely by author-
ised and qualified personnel, in accordance with applicable regulations.
en
13
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