Operating Instructions and Installation Instructions

ComNav Navigator G2 Installation & Operation Care & Maintenance

Document PN 29010081 V1.1 - 43 -

Care & Maintenance

The Navigator G2 GPS Compass Display has been designed to provide many years of

reliable service. The following periodic care and maintenance tips will help to ensure the

longevity of your GPS Compass Display.

Cleaning and Appearance

The Control Head should be carefully cleaned on are regular basis with a damp cloth and

mild soap.

Do not use abrasive cleaners or chemicals.

The Control Head and Distribution Unit are designed to be weatherproof and splash resistant,

but they should not be immersed in water for a prolonged period of time.

Environments exceeding a maximum temperature of 175° F (80° C) or below a minimum

temperature of -20° F (-30° C) MUST BE AVOIDED.

Exposure to prolonged direct sunlight should be avoided in order to prevent damage to the

electronics and housing, and UV-induced fading of the LCD.

Protection of Wires and Cabling

After installation, ensure that the system components are securely mounted and will not

shake loose due to the vibrations that can be expected in a marine vessel.

Ensure that the cabling and wiring to all system components are well secured with clamps or

alternative fasteners.

Many potential problems can be avoided by ensuring that cabling and wiring do not cause

strain on the connectors.

Periodic Checks

There are no user-serviceable parts or adjustments inside the Navigator G2 enclosure.

Should the unit become damaged in any way, return it to an authorized ComNav Dealer.

A few precautions will keep the unit in prime condition and result in years of trouble-free

service:

• The Navigator G2 housing does not require any special maintenance other than an

occasional cleaning.

• Avoid exposing the housing to solvents, acids, and bases as some of these may weaken

the casing.

• Although the Display Head is watertight, it is not designed for submersion under water.

• The DU-2 is not designed water proof; please avoid direct exposure to water.

Fuse Replacement

There are no replaceable fuses used in the Navigator G2. The Distribution Unit is

manufactured with two thermal-reset fuses. Should a fuse blow, turn off the ship power to the

Distribution Unit and determine the cause. After a period of time, up to several minutes, the

thermal fuse will reset and the Distribution Unit will function normally. The Ship Power LED

DOES NOT indicate when a thermal fuse has blown. The Power LED is connected directly to

the B+,B- terminals, before the thermal-reset fuse. If the thermal fuse had blown, switched

power to the display will not turn on.