WFCO WF-9800 User Manual

Operator Manual

For use with WFCO ULTRA III Deckmount Converter

WF-9800 Series

(model number located on the cover of the unit)

TM

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

ARTERRA DISTRIBUTION

Sales [phone]

Warranty Service [phone]

Fax [phone]

www.wfcoelectronics.com

Installation and Servicing of the WFCO WF-9800 Series Power Center

!

CAUTION

!

This product should be installed by an experienced technician.
CAUTION and care must be taken when servicing this equipment.

To prevent severe shock or electrocution consult your servicing dealer.
No serviceable parts.

!

WARNING

!

This unit employs components that tend to produce arcs or sparks.

To prevent fire or explosion, do not install in compartments

containing batteries or flammable materials

!

CAUTION

!

(LP gas).

To prevent fire, do not cover or obstruct ventilation openings.

Do not mount in zero-clearance compartment.

Overheating may result.

For continued protection against risk of fire, or electric shock

replace only with same type and ratings of fuse.

!

CAUTION

!

Check on a monthly basis the fluid level in any battery connected to RV
charging system.

TM

General Consumer Information

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

battery connection.

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.

DC Fuses
Reverse battery protection fuses; replace with
ATC “Littelfuse ” Type 257 fuse.

®

Lightweight

- 35 A unit weighs only 9.03 lbs.

- 45 A unit weighs only 11.20 lbs.

- 55 A unit weighs only 11.57 lbs.

- 65 A unit weighs only 14.33 lbs.

- 75 A unit weighs only 14.88 lbs.

This product is not ignition protected and should not be installed in an

®

LP compartment.

3

INSTAL L ATION INSTRUCTIONS

Distribution Panel/

Power Center

WF-8930/50NP
CHASSIS
(EARTH)
GROUND

GROUND BAR

12 V

BATTERY

Converter Operation Modes

TM

TM

Troubleshooting WF-9800 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

13.6 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 for a maximum of four hours. 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 of 13.2 Vdc. When the converter senses a demand
(by turning on lights), the converter automatically returns to the
“Absorption mode”.

OPERATI O N A L FEATURES

If the input from shore power is 105 Vac-130 Vac to the receptacle,
check the reverse battery protection fuse on the front plate of the
WF-9800 deckmount converter. Visually inspect the fuses for any
breaks/opens. If the fuses do not appear to be open, use a tester to
check for continuity.

DC
OUTPUT

-98XX

SHORE POWER
AC OUTPUT
(30 A OR 50 A)

RECEPTACLE
AC OUTPUT
(Power Center)

AC INPUT

F
W

:
EL

D

MO

MODEL LABEL

SERIAL LABEL

Reverse
Battery
Protection
Fuses

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 only reason that these fuses
will blow

.

6

7

TROUBLESHOOTING INSTRUCTIONS

Ground

FUSE

FUSE

RED

POS

+

NEG

BLACK

-

“Littelfuse ” Type 257 fuse

ATC Style

®