Installation and Operating Instructions Wilo-Cronoline
9
Englis
h
Installation
Installation site
The installation site should be a weather-resistant, frost-free
and dust-free area that has good air circulation. Select an easily
accessible installation site.
Keep a minimum distance of 8 inches [20 cm] between the motor
cover and surrounding surfaces.
1.
Insure the pump is installed in a way that no piping stresses
are transferred to the pump.
A straight piece of piping of 3 pipe diameters in length is
required on both sides to insure laminar flow.
Attach
p
ump
2.
Install only as shown (Figs. A/B):
- Installation with a horizontal motor (Fig. B) is permissible
only for pumps with an output of up to 20 HP.
- The motor may not point downwards (Fig. C).
- In the case of installation with horizontal motor (B), the air
vent valve must point upwards.
3.
If necessary, disassemble the motor and rotate
The electrical terminal box may not point downwards (Fig. C).
4.
The feet of the pump are drilled and tapped for floor or wall
mounting. Insure the volute is not stressed by the piping.
Connect flangeconnection
5.
Screw flange connection onto suction and discharge piping.
Caution: Dirt causes damage!
Dirt can render the pump inoperative.Before installing the
pump, complete all welding and soldering work and thoroughly
clean the pipe system.
min 3 x O
min 3 x O
1
1
Note:
Install an isolation valve (1) on the suction and dis-
charge sides of the pump so that the pump can be replaced
without having to empty the entire piping system.
A
B
C
Note:
The arrows on the flanges indicate the direction of
flow.
Note:
With motor output of 7.5 HP or more, a housekeep-
ing pad is recommended.
