WFCO WF-68100 User Manual

Operator Manual

For use with WFCO Deckmount Converter

WF-68100

TM

Distributed in the U.S.A. and Canada by

CHENG USA, INC.

Sales [phone]

Warranty Service [phone]

Fax [phone]

www.wfcoelectronics.com

TM

!

CAUTION

!

CAUTION and care must be taken when servicing this equipment.
To prevent severe shock or electrocution consult your servicing dealer.
No serviceable parts.

General Consumer Information

Power Factor Correction

less power, which reduces electric

OPERATI O N A L FEATURES

This feature causes the unit to consume
cost or allows more AC devices to be used.

Reverse Battery Protection
This feature prevents permanent damage to the converter from an incorrect

battery connection. Replace only with “ATC-style” fuses.

Automatic Cooling Fan
The fan is variable speed and current controlled.

Electronic Current Limiting
Automatically shuts down power during overload or short-circuit conditions.
Automatically returns to normal operation after conditions are corrected.
If the unit shuts off from an overload condition, the user needs to reduce the
load below 50% in order for the unit to come back on.

Over-Temperature Protection
Unit will shut down if temperature is too high.

2

Battery Type Selection Switch
For increased battery life span, you can select battery type between
AGM/Lead-Acid and Gel-Cell type of batteries. Gel-Cell type of batteries
requires lower output voltage and there is no need for bulk mode. Default
setting is (up) AGM/Lead-Acid type of batteries.

Manual Bulk Charging Switch
For AGM/Lead-Acid type of batteries, with a push of a button on the front
cover you can manually bring the converter to bulk charge mode.

LED Indicators
Lights show operating status of the converter:

- Green LED: converter powered up

- Amber LED: On when unit is turned off and the connected battery is full,
flickering occurs when battery is approaching low voltage.

- Red LED: converter is overloaded

Converter Operation Modes

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Troubleshooting WF-6800 Series Converter

All WFCO power converters are automatic three-stage switching
power supplies. The converter senses which mode it needs to be in by
checking the RV system voltage.

The three modes/stages of operation include:
Absorption mode/Normal operation

Nominal battery charge and supplies power to appliances

Bulk mode/Charge mode

Fast battery charge and supplies power to appliances

Float mode/Trickle charge

Trickle battery charge during storage

Absorption Mode: During this mode, the converter output is in the

13.7 Vdc range. This is the normal operation mode. This mode provides
the 12 Vdc and current required by the 12 Vdc RV appliances, as well as
slow charging the battery.

Bulk Mode: In this mode, the output voltage of the converter will
switch to 14.4 Vdc range for a maximum of four hours (not applicable
to Gel-Cell type of batteries). If the converter cycles between
“Absorption and Bulk mode,” there could be a shorted battery cell or
other issues.

Float Mode: In this mode, the converter is charging the battery
with a trickle voltage in the 13.2 Vdc range. When the converter senses
a demand (by turning on lights), the converter automatically returns
to the “Absorption mode.”

WF-6800 Series Converter - Front View

OPERATI O N A L FEATURES

If there is no DC output, first check the reverse polarity fuses on the back of
the WF-6800 Series deckmount converter. Then, visually inspect the fuses
for any breaks; if none are found, use a continuity tester to check for continuity.

DC
OUTPUT

X

68XX

-

WF
:
L

DE

MO

MODEL LABEL

SERIAL LABEL

Reverse
Battery
Protection
Fuses

AC INPUT

RECEPTACLE
AC OUTPUT
(Power Center)

SHORE POWER
AC OUTPUT
(30 A OR 50 A)

If the reverse polarity fuses are blown, it means the RV battery was accidentally
connected in reverse, either at the battery or at the converter. Reconnect
properly, then replace the fuse with the same type and amp rating as the
original “Littelfuse ” Type 257 automotive-style fuse.

®

IMPORTANT: These fuses protect the converter from damage in the
event that the RV battery is accidentally connected in reverse. A reverse
battery connection, even for a second, is the reason that these fuses will blow

WF-6800 Series Converter - Back View

ATC Style

POS+

NEG-

“Littelfuse ” Type 257 fuses

®

TROUBLESHOOTING INSTRUCTIONS

.

Bulk Mode

Manual Override

Switch

STATUS LED

3

4

GROUND

RED

BLACK