Installation, Operation and Maintenance manual
29
WSO Flex
14. Open the controller box with taking off the lid. If the controller panel is still to be
mounted on the controller box install the controller panel using 4 times of each
delivered M4 screws and M4 nuts. Install the 2 plastic strips inside the box on
top of the recently installed nuts and fasten strips with nuts delivered.
15. Wire the electric cable for motor through the side gland provided. If an EC fan is
supplied wire as well the electric cable for electronic signals in the plugged gland.
16. Connect the electric cable (in the side gland) coming from the connection box to
the motor terminals according the allocation plan (reference step 1 for controller
mounted on the unit). If an EC fan is supplied wire as well the electric cable for
electronic signals according allocation plan (see also point 1 controller mounted
on the unit).
17. Install the flexible transparent Δp hoses from the Δp coupling ends to the Δp
sensors on the controller panel.
18. At last wire supply cable (supplied by customer) through the bottom-gland and
connect the supply phases to the controller panel according the allocation plan
(reference step 2 for mounted controller).
19. Now double-check all connections are secure and safe. Once evaluated close all
boxes with their equivalent lid.
20. Now the unit can be operated by the controller on a place mounted by customer’s
choice.
Retrofit remote controller with wire
If a standard controller is mounted with a controller back plate without holes at the
right side, follow below procedure:
1. Install the tubes through provided holes like the M16 glands. If the glands are
already taken by other wires take out the Δp couplings M25 and wire the tubes
through these holes. Double-check whether the Δp tubes are long enough to be
connected to the connectors in the connection box.
2. The rest of the procedure are stated in ‘Controller mounted of the unit’, starting
from step 7.
AC Fan
Please see DOL Fan version terminal diagram on page 11 of the WSOflex-controller
manual. On this page the connections are described to be done. For maintenance
the motor with impeller can be dismounted from the fan housing. Either for
replacement to an EC fan, the fan housing can be dismounted by unscrewing the
bolts in the roof.
Plug supply in and out to check correct fan rotation (only for AC fan) shown by
‘Fan direction’ sticker situated on fan housing together with the cooling fan in
the motor at the bottom by the aid of a mirror.
