Horizon Yacht Charters Sun Odyssey 490 2020 User manual

Information & operations manual for
Sun Odyssey 490 2020
‘After Physics’

Welcome
Welcome to Horizon Yacht Charters and your Sun Odyssey 490 “After Physics”. We hope you had
a pleasant journey and are looking forward to a fantastic holiday and some of the finest sailing
in the world here.
This manual is here to guide you through the in’s and out’s of your yacht. Please take the time
to read this manual and do not hesitate to ask any of our professional, friendly staff if you have
any questions.
All the yachts in the Horizon fleet are maintained to the highest standards so that you may enjoy
a trouble-free vacation, on a beautiful yacht. Please remember that these yachts are all privately
owned, and we ask that you care for it like it was your own.
Best wishes for a great vacation,
Sylvia and Andrew
Directors
Office Hours:
Monday –Sunday 08:30 –17:30
Telephone: [phone]
Duty Manager: [phone] (Technical questions, damage reports and emergencies)

1. Yacht specifications
2. 12-volt panel
3. Voltmeter
4. Charging
5. Inverter
6. Breakers and Fuses
7. Engine Start
8. Daily engine checks
9. Generator
10. Air conditioning
11. Cockpit electronics
12. V.H.F procedures
13. Stereo
14. Anchoring and windlass
15. In-Mast furling main
16. Picking up a mooring ball
17. Bilge pumps
18. Fresh water systems
19. Heads
20. Showers
21. Refrigeration
22. Using the stove and propane
23. Fire safety
24. BBQ grill
25. Swim platform
26. Dinghy and outboard

1. Yacht specifications
Length 49’
Beam 14’ 9”
Draft 5’ 5”
Fuel 63 Gallons
Water 169 gallons (Starboard aft 87 gal + Port Mid 53 gal)
Engine 80 hp Yanmar
Generator Onan MDKBJ/W
Location of:
Fresh water refills (1 Stbd aft and 1 port mid)
Diesel refill (Port aft quarters)
Manual bilge pump (Port helm)
Propane tank (Port transom locker)
Windlass Breaker (Port aft cabin bunk)
Diesel cut off valve (under port aft bunk)
Water tanks change over valve (Under stbd fwd saloon seat)
Generator (Port transom locker)

2. 12v & 110v Panel
Top Row:
Electronics
Navigation Lights
Steaming Light
Deck Floodlight
Anchor Light
Lower Row:
Cabin Lights
Primary Bilge Pump (Press once for auto and twice for manual)
Aux (Cockpit rope light)
Fresh Water Pump (On when using heads)
Refrigerator
Switches on panel flash if there is a fault, resettable fuses behind panel.

3. Voltmeter
Main Menu: Display and owner settings (Do not adjust owner settings)
Water and Fuel
Batteries
(House, Engine
and Generator
Return
Main Menu
Toggle Left
Toggle Right

4. Charging
Keeping your house batteries charged is essential to ensuring your 12volt systems will work.
Fridges, lights, fans, stereos, and Navigation instruments are some of the most important ones
and of course using them draws power from your house batteries. If you conserve energy, you
will not need to charge as often. If something is not being used, then turn it off. We often
explain that 12-volt power is like water; you need to replace what you use. You can recharge
your batteries with the auxiliary engine(s) or your 110-volt battery charger when running the
generator or on shore power.
Engines:
Motoring to a destination will automatically charge your batteries. When anchored or moored
you can run your engine(s) in neutral at 1400 RPMs to charge your batteries.
If your batteries get to 12.2 volts, then it is time to recharge your batteries. At 12.2 volts it
should take about 1.5 hours of charging to get them back to a good charge. It is important that
you recharge the batteries completely every day. This may take 2 or 3 charges per day. But you
can break this up into more charges for shorter periods of time. Once you think you have
charged enough or you just want to go for a sail, turn off the charging system. Wait about 15
minutes and then check the voltage of your house battery. A fully charged battery should come
to rest around 12.8 volts. If the batteries do not get to this level, then they need more charging.
Please note that you will see elevated voltage readings when charging and just after charging.
The latter is why you should wait 15 minutes before checking your voltage after charging.
Hold button and move shifter
to disengage transmission.

Charging with shore power and generator:
Using the 110volt charger via generator or shore power will charge your batteries; Just check
that the battery charger is turned on as this is not completely automatic. And check that you see
your house battery has an elevated charge level, 13 volts or more whilst charging.
There are two selector switches in the port aft cabin generator locker should stay in the auto
position (You can select shore or generator using the touch display at the nav desk). In the case
of a system failure, the switches can be operated manually. Call the manager on duty if there
is a system failure. On shore power you have air conditioning, 110v power to your outlets and
you are charging your batteries.
GE (Generator Battery
Charger)
2 (Main Battery
Charger)
1 (Main Battery
Charger)
Battery Charger Breakers

Generator not charging batteries:
•Check battery charger breakers are in the on position.
•Check transfer switches. Ensure selector switches are turned to generator and not shore
power.
•Check the main breaker on the left side of the generator. When this breaker is off the
generator will run but there no power going to the chargers and air conditioning units.
Not Receiving Power from Shore:
•Check selector switches are set to shore power and not generator.
•Check the cable is plugged in all the way, you should be able to twist the cable clockwise
on both ends.
•If you are still not receiving power from shore move the shore cable to another pedestal
and ensure the breakers on the pedestal are in the on position.
Selector Switches on Touch Display
Switched to shore
power
Blue Line indicates you are
receiving power from shore
Battery Charger and Outlets
Air Conditioning
Selector Switches and removable
handles in starboard aft cabin locker.

Batteries (Voltmeter and Switches)
Batteries
Domestic/Main Battery
Engine Start Battery
Generator Start Battery
Domestic/Main
Battery
Engine start battery
Generators start
battery
Bow thruster
battery (Owner use
only)
Bow Thruster Battery

Battery Switches:
Domestic (Main), Generator and Engine battery switches are in front of the port aft cabin
bunk. The battery switches must remain in the on positions unless instructed to do otherwise.
Engine Battery Switch
Domestic (Main) Battery Switch
Generator Battery Switch

5. Inverter
Warning: Leaving the Inverter turned on will severely deplete the house batteries. For that
reason, it is better to run the engines at the same time. If you have the Generator running,
there is no need to use the Inverter.
After Physics is equipped with a built-in Xantrex Pro Watt inverter that allows you to have access
to all outlets when the boat is underway. There is a remote switch located in the port aft
cabin that enables you to turn the inverter on.
To avoid additional drain on your batteries while operating electrical appliances on the inverter,
the engine should be turned on and revved up to 1400 rpms IN NEUTRAL
Switch the inverter off when you are not using it to help preserve battery power.
Note: The inverter will not operate the air conditioning unit; this is only available under
generator power or shore power.
Inverter Breaker (Port Aft Cabin
Locker)

6. Breakers and fuses
All 12V system fuses are in the port aft cabin locker.
1. 12 V Socket 11. High water alarm
2. Hifi 12. Electric toilet
3. Touch screen (Supply) Voltmeter 13. Gas solenoid
4. Propane dectector 14. Spare
5. VHF & AIS 15. Stratum 5
6. Shower drain pump 16. Freezer
7. Shower drain pump 17. Windlass
8. Shower drain pump 18. Engine comp ventilator
9. Shower drain pump 19. Spare
10. Electric toilet 20. Spare
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

110V Breakers (In port aft cabin bedside locker)
Air Conditioning
GFCI Breaker
If electrical outlets are inoperable,
please reset the GFCI Breaker.

7. Engine start
•Make sure the throttle is in neutral.
•Turn on the engine ignition by pressing the lower button on the panel (an audible
alarm should come on).
•Press the start button at the top of the panel.
•Once the engine is running, check that you have cooling water coming out of the
exhaust.
•To stop the engine, press the stop button until the engine stops and then turn off the
ignition panel using the lower button (press and hold until you see all five red lights lit,
then release).
Should you hear an engine alarm during normal operation, check the LCD display for
an identifying symbol and immediately shut down the engine - CALL HORIZON
All our yacht engines run with diesel fuel. There is a diesel filler cap on each transom
which is clearly marked “DIESEL” DO NOT PUT WATER IN HERE.
Start
Stop
Ignition
Hold in to disengage the
transmission

Fuel Gauge
Water and Fuel
Options
Fuel Tank

8. Daily engine checks
•Check the oil level using dip stick located to the left side of the engine. Access the dip stick
from the starboard cabin engine hatch. The level should be at least halfway between the
empty and full marks. To add oil, open the oil filler cap on the top of the engine.
•Behind the engine is the seawater filter (Raw water strainer).
•Next to the seawater filer (Raw water strainer) is the coolant reservoir. The coolant level
should be between the maximum and minimum lines.
•Check for any engine leaks or bilge water below engine.
•Check the fan belt, located at the front of the engine, for any damage and correct tension.
KEEP HANDS CLEAR OF ALL MOVING PARTS.
ANY PROBLEMS CALL HORIZON
Oil Fill +Coolant fill
Engine raw water strainer
Coolant reservoir

Engine access panel behind starboard cabin door.
Oil dip stick
Kill Switch (Leave in the Run
position)
Access to engine raw water strainer and coolant
reservoir in port aft cabin.

9. Generator
YOU MUST NOT RUN THE GENERATOR WHEN UNDERWAY.
After Physics is fitted with its own Onan generator which will run the 110v outlets, the air
conditioning and will also charge the batteries instead of the engine. The generator is in the
cockpit floor locker and is self-regulating and therefore there are no daily checks to perform.
Starting the Generator:
•Make sure the 110v systems are off prior to starting the generator (Make sure all air
conditioning units are off). Should be done prior to departure.
•Ensure that you have switched from shore power to generator power on the touch display at
the 12V panel.
•Press the Prime switch for 5 seconds.
•Press and hold the Start button until you hear the generator start.
•Allow the generator to warm up for 5 minutes and then gradually load up the system (battery
charger and air conditioning units), adding one load every 2 minutes.
Stopping the generator
•Turn off all 110v systems (air conditioning units and battery charger).
•Allow the generator to run for 5 mins without load to cool down.
•Push down quickly on the bottom of the switch and release.
•The generator will shut down.
Generator Reset Breaker
Generator Start panel

7. Using the touch display to start generator:
Hit the return button while on the main page to the screen below and then the AC
Source menu to get to the next page.
Home page
Return
Water and
Fuel Gauges
Battery Page
Next page
Previous page
Main Screen
AC Source menu
On/Off Button