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G) Cooling Fan
To maximize the life of the internal components and to allow continuous operation at full
rating, the Phase Three employs an automatic integral cooling fan. This fan operates when-
ever a load is applied to the charger.
If the fan fails to operate when the charger is on and a load is applied, it may be in need of
replacement. Replacement fans are available from NEWMAR. Specify part number 999-
1210-0, and refer to Replacement Fan with PCB connector.
Fan replacement procedure is as follows:
1) Remove the five screws on the front panel.
2) Remove the small cover plate on the lower end of the front panel. This will expose the fan
assembly which is held in place by two guides attached to the main cover.
3) Lift and slide the fan assembly completely out of the charger.
4) Disconnect the fan from the in-line wire connector.
5) Use a phillips screwdriver to remove the fan from the fan plate.
6) Install the new fan onto the fan plate with the molded arrow at the top of the fan facing
away from the plate.
7) Reconnect the in-line wire assembly and slide the fan back into the charger, taking care to
fit the assembly between the guides attached to the main cover. Replace the small cover
plate.
V)
APPLICATION NOTES
A) Start Up
1) Before powering up your charger, check for tight electrical connections to each battery in
your system. Switch off any d.c. loads on the batteries. Apply a.c. power. Observe the d.c.
ammeter on the front panel. This meter displays the total d.c. output of the charger, through
all banks. It will give some indication of the overall state of charge of your batteries. If the
meter is reading mid-scale or higher, it is an indication that the batteries are in a relatively
low state of charge. The charger, sensing this, is supplying high current to the batteries. If
the meter needle is at or near the bottom of the scale the batteries are at or nearing full
charge.
2) Apply a load to the charger by switching on some lights, a pump or some other d.c. appli-
ance. Observe the charger meter. It should read approximately the same as the expected
current draw of the appliance. As current is demanded from the battery system, the charger
will automatically increase its output in response to the increased load demand. When load
current exceeds 10-20 % of the charger's rated capacity, the charger will go into the absorp-
17
U.S.A. HEADQUARTERS
EURO WAREHOUSE
E
P
P
LECTRONIC
OWER
RODUCTS
P.O. Box 1306, Newport Beach, CA 92663
Phone:+31-35-603-2494
C
! ! ! ! !
N
Phone: 714-751-0488 Fax: 714-957-1621
OMMUNICATION
AVIGATION
Fax:+31-35-603-2149
E-Mail: sales@newmarpower.com
www.newmarpower.com
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