5
– FUNCTIONING AND USE
COD.
35M12/24.D.2018
EN
THE PRESENT MANUAL BELONGS TO -
Schenker Italia
- ALL RIGHTS RESERVED
36
5.2 Introduction
– by pass mode
The watermaker makes use of a bypass mode which disables all the electronic main functioning (diagnosis,
automatic washing etc..). In this way the system works manually.
The bypass mode has to be activated only in the following situations:
1. First start-up procedure or restarting of the watermaker after service operation. The bypass is needed
to purge the whole residual air which would otherwise be interpreted by the system as a fault, with a
consequence of a system block after about 20 sec.
2. Electronic fault. In case of electronic control fault, the bypass mode guarantees the normal functioning
of the watermaker manually through the use of the pump1 selector. In this circumstance it is not
possible to perform the automatic washing.
CAUTION
Please, avoid to use the bypass mode if not strictly necessary. In this mode all the main electronic
controls of the watermaker and automatic sensors are disabled.
5.3 First start up procedure
The first start-up procedure is necessary to start a new plant for the first time or to restart it after having
performed the laying up procedure.
The purpose of the star up procedure is to essentially purge the air contained in the system.
This procedure has to be performed by making the watermaker functioning manually; this option is carried
out by activating the bypass mode, which bypass the electronic controls.
CAUTION
When by-pass mode
is “ON”, all the electronic controls (diagnosis, automatic washing, etc..) are
disabled.
5.3.1
Preliminary checks before proceeding with the startup procedure
Please, be sure to perform all the following checks before proceeding with the startup procedure:
1. Verify that all plant components are connected correctly.
2. Verify the 5 micron is installed correctly.
3. Be sure the seawater inlet valve and salt water drain valve are opened (If existing).
4. Be sure the reset valve is closed (lever
orthogonal
to the body valve) and the positioner completely
unscrewed.
5. Be sure the fresh water pressurizing pump of the boat is on.
6. Be sure the valve on the active carbon filter is opened.
7. Be sure the fresh water tank is full enough (at least 50lt) to perform washing procedure.
