Expansion Tank; Filling The Cooling System; Electrical System; Introduction - Vetus EP2200E Instructions D'installation

8.2 Expansion tank

• Fit the expansion tank (A) at an easily accessible place above
the highest level (B) of the electric motor.
A
• Always use a flexible hose with internal diameter 16 mm (5/8") for
the connections between the keel cooler, expansion tank and mo-
tor.
• Keep the hoses as short and with as few bends as possible.
• Only use water and/or soap, thus no fatty or oily products, to help
make fitting the hoses to the hose connection points easier.
• Tighten each hose connection using rust-proof steel hose clamps.

8.3 Filling the cooling system

• Remove the lid from the expansion tank and fill the cooling sys-
tem.
Use a mixture of 40% antifreeze (on ethylene glycol basis) and
60% clean tap water and coolant or use coolant liquid only.
• See the operating manual for the specifications of the coolant liq-
uid to be used.
• Add liquid until the expansion tank is about half full.
vetus® Electric propulsion EP2200E, EP2200EH
9

9.1 Introduction

The electric motor is suitable for 24 Volts only.
The electrical system has an insulated return.
B
The electric wiring between the motor and the regulator is already
fitted.

9.2 Batteries

The common starter battery is not suitable for an electric propulsion
installation.
Instead, semi traction or traction batteries should be used.
The characteristics of these types of battery are:
Starter battery - fitted with a large number of very thin plates - es-
pecially suitable for providing a high current for a very short period.
This type of battery is not suitable for being discharged regularly by
more than 35% before being recharged, otherwise its useful life(*)
becomes considerably reduced.
Semi traction (Deep-cycle) battery - this type of battery is fitted with
fewer, but thicker plates than a starter battery - and is suitable for
providing a fairly large current (but not as large as a starter battery)
for a longer time.
Also, this type of battery can be discharged by 80% before needing
to be recharged, while maintaining a reasonable useful life(*).
Traction battery - this type of battery has tubular plates - and, like
the semi-traction battery, will provide a fairly large current for a long-
er time.
However, its useful life (*) when discharged regularly by 80% is con-
siderably longer than for a semi-traction battery, so it is often used
where the battery is discharged by 80% on a daily basis, in fork-lift
trucks, for example (cyclic operation).
(*) Useful life here means the number of charge-discharge cycles
that a battery can undergo before its capacity is permanently
reduced to 80%.
With an 80% discharge, the useful life of a semi-traction battery
is 300 to 400 charge-discharge cycles, while for a traction battery
this is 1500 to 2000 charge-discharge cycles.
Although traction batteries perform better than deep-cycle batter-
ies, they can only be recommended for very intensive use (hire boats,
for example) due to the much higher purchase price.
Note: The electrolyte levels of conventional traction and semi-trac-
tion batteries should be checked regularly and, if necessary, refilled.
Vetus can provide maintenance-free batteries of the type AGM (Ab-
sorbed Glass Mat), that, with approx. 375 charge cycles to a depth of
discharge of 80%, are excellently suited to electric propulsion.
The Vetus Gel batteries are also maintenance-free and, with approx.
750 charge cycles to a depth of discharge of 95%, are a reliable alter-
native to conventional traction batteries.

Electrical System

ENGLISH
17
370240.01