Installation summary
Installation of the SU90 system is a demanding task that requires careful preparations, a number of specific procedures, wiring and required system settings.
Context
An overall installation procedure is provided. This procedure does not describe any detailed tasks. Refer to the relevant tasks in this manual.
Note
In order to obtain maximum safety and optimal performance, it is very important that the installation procedures in this manual are complied to. You must do the tasks in the order they are described. The vessel owner must make sure that the installation shipyard holds the applicable competence to perform the installation, and that the applicable maritime authorities are available to verify and certify the installation.
The size, location and design of the sonar room must fulfil all the requirements to the vessel’s watertight integrity. In the event of a major leak, it must be possible to close all watertight hatches and/or doors to the room to maintain vessel stability and safety. The physical size of the sonar room must be limited, so that in the event of a major leak, the flooding of the room will not induce instability, or cause the vessel to capsize or sink.
The installation shipyard must provide all necessary design and installation drawings, as well as the relevant work standards and mounting procedures. If required, all documents provided by the shipyard for the physical installation of the SU90 system must be approved by the vessel’s national registry and corresponding maritime authority and/or classification society. Such approval must be obtained before the installation can begin. The shipowner and shipyard doing the installation are responsible for obtaining and paying for such approval.
Procedure
1 Based on the vessel drawings and best practice, determine where the hull unit shall be located.
Necessary considerations must be taken to avoid acoustic and electric disturbances.
The SU90 system can be provided with one of the following hull units:
Hull Unit Lowering depth (m) Transducer cable (m) Maximum speed (knots)
SU92 1.2 4.6 21
7
SU93 1.6 4.6 16
7
SU94 2.1 4.6 11
7
The same transducer is used on all hull unit types.
If a Hull Unit Controller is supplied with the system, the Motor Control Unit cabinet is used as a junction box.
Note
You may need to install the SU90 hull unit aft of an existing hull unit. If these hull units are placed one after the other along the keel, you must make sure that you have sufficient distance between them. When mounted in the longitudinal direction of the hull, the distance between two installation trunks must be minimum three -3- times the diameter of the forward trunk. This is important to increase performance and to reduce noise and excessive vibrations that can damage the hull unit.
2 Prepare the sonar room to meet the installation requirements.
3 Optionally: Install the gate valve.
On some vessels, additional transducer protection is required. One example is vessels working in arctic conditions. It is important for them to prevent ice from damaging the transducer. A gate valve is then added to the hull unit installation. By means of a mechanical construction it shuts off the bottom of the installation trunk when the SU90 system is not used.
For more information, refer to the end-user documentation provided by the manufacturer.
Note
The mounting flange will penetrate the hull. For this reason, correct installation of the mounting flange and the gate valve is crucial for the vessel safety.
4 Mount the installation trunk.
The installation trunk is not used when a gate valve is mounted.
Note
The installation trunk will penetrate the hull. For this reason, mounting the installation trunk correctly is a crucial part of the installation.
5 Mount the hull unit on top of the installation trunk or the transducer dock.
6 Install the SU90 system units.
Note that some SU90 system units may be commercial. Unless ordered specifically these are not included in the delivery, and must be purchased locally.
7 Install the cables between the SU90 system units.
This is described in the Cable layout and interconnections chapter. Observe the relevant cable plan, procedures, as well as the general requirements for cabling.
8 Install the cables between the SU90 system and the relevant peripheral devices.
This is described in the Cable layout and interconnections chapter. Observe the relevant cable plan, procedures, as well as the general requirements for cabling. For more information, refer to the end-user documentation provided by the manufacturer.
9 Turn on the SU90 system for the first time, and set it to work.
Note
In order to turn on the SU90 system in a safe and correct manner, the relevant procedures must be complied to!
10 Do a complete SU90 system test.
The tests are described in Setting to work chapter in this manual. They are also provided in the Harbour Acceptance Test and the Sea Acceptance Test documents.
11 Create a backup with the system configuration and software installation.
Once the configuration and testing have been finalized, you must back up the configuration data and software installation. Your backup will then include the operating system, the SU90 software, as well as all the interface parameters that you have defined.
Further requirements
Fill in and sign the Installation Remarks form, and send it to the Simrad support department as specified on the form.