Aspen C90 User manual

1
C90$Owners$Manual$

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The C90 has three main battery switches , House On/Off ,Engine On /Off,
and Emergency Parallel. The normal operation position is to leave both
Engine$and$House$switches in the On Position, Emergency Parallel is Off.
Emergency parallel is rarely used, the boat has a Blue Sea’s Voltage
Sensitive relay (black box near switches) it disconnects the House Batteries
from the Start Battery. When the voltage on the Start Battery drops below
12.7 volts it disconnects, once the charging system has brought the Start
Battery back up to 12.7 volts it reconnects to the house battery bank.
The Batteries have three charge sources, First, 2 ProMariner Chargers (8A
for Start Battery and 20A for House Battery) Shore Power is connected and
AC Breakers at dash are switched on. Second, two 80W Solar Chargers
(10A) while anchored-automatic, Third is a 125A engine driven Alternator.
Thruster Battery Switches, These are mounted below the main
battery switches and are normally on. These must be switched off
when swimmers are in the water or for service. The thrusters are
very powerful and will suck objects in the water toward them. Do
not operate Thruster for more that 30 seconds at one time or motor
may over heat.

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The C100 fuel system includes two filters and a electric switching valve at the dash. In
normal operation there is no owner/operator activity other than to inspect the Raycore
Filters clear glass bowel for water (clear liquid) and drain in to cup through petcock at
bottom if present. If the boat has set unused for several days you will need to wait for
the engines electric fuel pump to stop before cranking (light buzzing noise). The engine
has its own fuel filter assembly but this is not typically changed as it is protected by the
Raycore unit. The engine has a manual fuel pump activation button on its port side fwd
near the top. The Raycor uses a 10 Micron 500 series diesel filter.
Fuel Tank Switch is located to the left
side of dash. Its is labeled Main and
Aux, Main is the engine side tank, Aux
is the port tank. Depress toggle for tank
desired. You typically will run on one
tank for 3 hrs then switch, so tanks drop
equally while underway. Each tank is 40
gallons approximately 36 is usable.
With full fuel at 14Kts you should have
approximately 16 Hrs running time.
This switch also swaps the engines fuel
return lines at the same time.

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Always On 12V power Fuse is just inside engine room door.
It supplies power to the boats 6 automatic bilge pumps,
heater, Co censor and other devices that need power to save
memory settings. It is not affected by battery switch
position. If Fuse is Burned Out, there is no bilge pump
protection from leaks. To change the fuse the Philips screws
need to be loosened for removal.
Engine room inside wall

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The Volvo D3 150 engine uses premium
15-40 oil. It’s best to check oils prior to
use. Be carful not to spill or overfill.
Change oil and filter when new at 50 hrs
then every 100 hrs after.
The ZF Transmission uses ATF (automatic tranz fluid) oil for its gear lubrication and
to engage its clutch. Check oil engine warm/Idling in nutural with dip stick pushed
against the threads but not screwed in to the housing. If the oil is low the clutch will
drop out and the boat will stop-find leak-refill. To top off, it’s easiest to fill through
the dip stick opening with supplied funnel check frequently while filling as
overfilling can damage the transmission. Change after 50 Hrs and then every 100
hrs, clean wire mesh filter.
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This Blue Seas Systems
unit separates the house
batteries from the start
batteries automatically
when the house voltage
is bellow 12.4 volts. No
user activity is required.
Battery Chargers
These ProMariner automatic
chargers are wired to come on
when the boats shore power is
connected and the A/C breakers at
the dash are switched on. The
chargers are 4 stage smart units
that charge aggressively if the
battery is low and then ramp down
as it fills. They then drop out
completely when full and then do a
small topping charge weekly. The
design greatly extends battery life
and over charging and subsequent
battery damage. Check battery
water levels monthly ,lower water
levels/ exposed plates will damage
the batteries lead plates requiring
replacement.
Under Dinette Hatch
Note: Chargers will only charge
if they see voltage. If batteries
have been run dead flat you will
need to use Emergency Parallel
Switch, charge for 10-15 minutes
to charge batteries enough for
Charger to see voltage.

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There are two raw water valves on the boat both in the Starboard
Lazarette (inside hull side fwd). The smaller one ½”is for the head
and the aft deck wash down. The larger one 1.5”is for the engine
cooling water.
½Inch raw water valve is run typically at 45 degrees to reduce its pressure
while underway and stop head overflow. These valves are typically left on
as running the boat with valves closed will damage the engine and
impellers.
Raw Water Valve OFF Raw Water Valve On, 45 degrees
Engine Cooling Water Ball Valve Off Engine Cooling Water ON
Be sure to close valve when cleaning the raw water strainer

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House Batteries 2ea
G27 12V Deep cycle,
wet lead acid, 4”
water lift muffler to
left, drain muffler
when stored for
winter with drain bolt
at bottom, re-silicone
bolt after.
Engine start battery G27
(Center), Teliflex SeaStar
hydraulic steering ram. Note:
Rudder packing should be re-
tightened/checked with each oil
change.
Drip-Less shaft seal

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Propane tank is in the Port Cockpit storage
locker. Note: Locker is plumbed with a
hose to a through hull overboard so a gas
leak would not inter the boat. If you ever
smell gas stop-turn off valve and open boat
to clear fumes. Find leak.
To use, make sure hose connection is
tight, open valve, gauge will show
aprox 90 Psi. If you hear a hissing or
smell gas turn valve off ,check
connections w/ soap 50/50 water
solution.. 15 pound tank will
typically last 2+ weeks.
Electric shut off valve only comes on if gas
controller by sink is on and sniffer smells no
gas.
The tank must be centered in compartment
to latch lid in place.
Start Battery
Location