WFCO WF-8725P User Manual
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Reverse Battery Protection
This feature prevents permanent damage to the converter from an
incorrect battery connection.
Automatic Cooling Fan (on the 8725 only)
The fan automatically turns ON to cool the unit after 4-8 Adc.
Electronic Current Limiting
Automatically shuts down power during overload or short-circuit conditions.
Automatically returns to normal operation after conditions are corrected.
DC Fuses
- Four 12 Vdc circuits (including one battery circuit)
- Maximum of 25 Adc fuse for DC circuits 1 through 4
- Reverse battery protection fuse: replace only with
ATC “Littelfuse ” Type 257 fuse
Circuit Breakers
- One 30 Aac “Main circuit” and max. of three 20 Aac “Branch circuits”
UL-Listed Main Circuit Breakers, rated for 120 Vac, maximum 25 Aac
Breaker Filler Plates:
2
IN
S
T
A
L
L
A
T
IO
N
IN
S
T
R
U
C
T
IO
N
S
Manufacturer
Cutler Hammer
Thomas Betts
ITE/Siemens
Square D
Murray
Model/Cat. No./Type
Type BR and C
Type TB or TBBD
Type QP or QT
Type HOM or HOMT
Type MP-T or MH-T
Acceptable circuit breakers are as follows:
UL-Listed Branch Circuit Breakers, rated for 120 Vac, maximum 20 Aac
Manufacturer
Cutler Hammer
Thomas Betts
ITE/Siemens
Square D
Murray
Model/Cat. No./Type
Type BR and C, Type BRD BD and A
Type TB and TBBD
Type QP or QT
Type HOM and HOMT
Type MH-T or MP-T
Acceptable circuit breakers are as follows:
Manufacturer
WFCO
Model/Cat. No./Type
FP-01 or FP-01B
-
type designation, and equal or greater interrupting rating, not to exceed 20 A.
- “Short-Circuit-Current” rating for the breaker should be 10,000 A.
A replacement or additional circuit breaker shall be of the same manufacturer,
®
General Consumer Information
TM
®
®
3
O
P
E
R
A
T
IO
N
A
L
F
E
A
T
U
R
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S
TM
Converter Operation Modes
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 range 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 range. When the converter senses a demand
(by turning on lights), the converter automatically returns to the
“Absorption mode”.