WFCO WF-9800 Series ULTRA III Deckmount Converter Instruction Manual

WFCO WF-9800 Series ULTRA III Deckmount Converter

Product Information

Specifications

• Model Number: WF-9800 Series
• Weight:
  • 35 A unit: 9.03 lbs
  • 45 A unit: 11.20 lbs
  • 55 A unit: 11.57 lbs
  • 65 A unit: 14.33 lbs
  • 75 A unit: 14.88 lbs
• Dimensions:
  • A: 7.50″ (WF-9835), 8.76″ (WF-9845, 9855), 10.26″ (WF-9865, 9875)
  • B: 5.53″ (WF-9835), 6.79″ (WF-9845, 9855), 7.52″ (WF-9865, 9875)
  • C: 1.97″ (WF-9835/45/55), 2.74″ (WF-9865/75)
  • D: 5.70″ (WF-9835), 5.94″ (WF-9845, 9855), 6.30″ (WF-9865, 9875)
  • E: 3.94″ (WF-9800 Series)

Product Usage Instructions

Installation Instructions

1. Select a mounting location near the shore power and battery (batteries).
2. Do not mount in an area where the owner may store items, as this could reduce the clearance requirements, obstruct ventilation openings, and affect the efficient operation of the converter.
3. Do not install close to appliances that are a source of heat or water (such as water heaters, furnaces, and under refrigerators). It is not designed for mounting in wet locations. It must be protected from direct contact with water.
4. To prevent fire or explosion, do not install in a compartment containing batteries or flammable materials (LP gas).
5. During the manufacturing process, be sure that all converter openings are protected from debris falling into the unit. This is a non-warranty item.

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.

INSTALLATION INSTRUCTIONS

OEM Installation of the WFCO WF-9800 Series Power Center

Select a mounting location near the shore power and battery (batteries).

• Do not mount in an area where the owner may store items, as this could reduce the clearance requirements, obstruct ventilation openings and affect the efficient operation of the converter.
• Do not install close to appliances that are a source of heat or water (such as water heaters, furnaces, and under refrigerators). It is not designed for mounting in wet locations. It must be protected from direct contact with water.

WARNING!
This equipment employs components that tend to produce arcs or sparks. To prevent fire or explosion,

DO NOT INSTALL IN COMPARTMENT CONTAINING BATTERIES OR FLAMMABLE MATERIALS (LP gas).

CAUTION !
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH THE SAME TYPE AND RATING FUSE.

The fuse rating which the manufacturer suggests for the output fuses will be marked on the unit. Replace only with same type and rating. During the manufacturing process, be sure that all converter openings are protected from debris falling into the unit. This is a non-warranty item.

NOTE : If the reverse battery protection fuses are blown during installation, be sure that the battery has been connected properly, then replace the fuses with ATC “Littelfuse ” ® Type 257 with the same rating as the original.

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 only 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.

WF-9800 Series Converter Dimensions

REVERSE POLARITY  FUSES USED:

• WF-9835 – 35 Adc
• WF-9845 – 30/30 Adc
• WF-9855 – 35/35 Adc
• WF-9865 – 40/40 Adc
• WF-9875 – 40/40 Adc

SPECIFICATIONS

WF-9800 Series Specifications

Output Load Curve
Model : WF-9835, 9845, 9855, 9865 and 9875

WF-9800 Facts Summary

Model No.

| ****

AC Input

| ****

DC Output

| ****

Dimensions

| ****

Weight (lbs)

| ****

Fan Cooled

---|---|---|---|---|---
Voltage

(V)

| Current

(A)

| Volts (V)| Amps

(A)

| Height

(in)

| Width

(in)

| Length

(in)

WF – 9835

| ****

120

Vac 60 Hz

| ****

7.4

| ****

Bulk Charge Mode:

14.4 Vdc, 4hr max.

Absorption Mode:

13.6 Vdc

Float Mode:

13.2 Vdc

| ****

35

| ****

3.94

| ****

5.70

| ****

7.48

| ****

9.03

| ****

Yes

WF – 9845

| ****

9.5

| ****

45

| ****

5.94

| ****

8.66

| ****

11.2

WF – 9855

| ****

11.5

| ****

55

| ****

5.94

| ****

8.66

| ****

11.57

WF – 9865

| ****

13.9

| ****

65

| ****

6.30

| ****

10.27

| ****

14.33

WF – 9875

| ****

15.7

| ****

75

| ****

6.30

| ****

10.27

| ****

14.88

OPERATIONAL FEATURES

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:
  When the converter senses that the RV system voltage is less than 13.2 Vdc (equivalent to less than 50% of battery charge) the converter will automatically go into the “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.

• If the output voltage drops below 13.2 Vdc, the converter automatically changes to a “Bulk mode” 14.4 Vdc (unless the converter is in overload condition).
  There are two signs of an overloaded converter:

  • Low output voltage, and full converter fold back or shutdown. In both cases, the converter will automatically turn ON, once the complete load is removed. For low output conditions, removing the extra (over the current rating) load will be sufficient.
  • If it is impractical to remove all the load, resetting the main breaker will have the same effect.

• Float Mode:
  If the RV is not being used for approximately 48 hours, with a “no load” condition and the shore power is plugged in, the converter will automatically go in to the “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” 13.6 Vdc.

TROUBLESHOOTING INSTRUCTIONS

Troubleshooting WF-9800 Series Converter
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.

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.

• Before the converter output voltage can be checked, it is necessary to disconnect both DC output wires from the converter (as shown below).
• Use a 5/16 hex driver to disconnect the wires. Cover each wire with electrical tape to prevent shorts.
• Plug the converter into a 120 VAC source. Using a voltmeter, check the converter output voltage.
• Place the Positive + (red) probe in the POS + output (red) and place the Negative- (black) test probe into the NEG- (black) output terminal of converter.
• Be sure you have good connections at the terminals. If the voltage reads 13.6 Vdc (+/- 0.2 volts), the converter is functioning properly.

If the converter output voltage reads in the 13.6 Vdc range and the battery is not charging, check for:

• an open inline fuse in the battery wire (if provided)
• an open wire between the converter and the RV battery
• loose ground
• improper torques

If the converter fuses and AC voltage are good, but the converter output still reads zero volts, the converter is not functioning properly. Contact Cheng USA, Inc. Tech Support at 1 877-294-8997.

COMPLIANCE

GENERAL COMPLIANCE INFORMATION
The WF-8900 Series units are UL-Listed, and cUL-Listed (Canadian). They comply with FCC Class B requirement (see below)

FCC Compliance Class B

NOTE : This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

LIMITED WARRANTY

Consumer Limited Warranty For WFCO Electronic Products
WFCO extends to the original owner a Two-Year Limited Product Warranty. This Warranty is in effect from the date of original purchase for a period of two (2) years. This Limited Warranty is extended specifically for and is limited to recreational vehicle application and is valid only within the continental United States, Alaska, Hawaii and the provinces of Canada. WFCO warrants to the owner that its products are free from defects in material and workmanship under normal use and service, based on its intended use and function. This Warranty is limited to the repair or replacement, at WFCO’ s discretion, of any defective parts or defective assembly. Any implied warranties of merchantability or fitness for intended use are limited in duration unless applicable State Law provides otherwise. You may have other rights as specified by each individual state.

EXCLUSIONS and LIMITATIONS
The OEM Warranty specifically does not apply to the following:

• Any WFCO product that has been repaired or altered by any unauthorized person. Any damage caused by misuse, faulty installation, testing, negligence or accident or any WFCO product installed in a commercial vehicle.
• Any WFCO product whose serial number has been defaced, altered or removed. Any WFCO product whose installation has not been in accordance with the WFCO written instruction.
• Any consequential damages arising from the loss of use of the product including, but not limited to, inconvenience, loss of service, loss of revenue, loss or damage to personal property and cost of all services performed in removing or replacing the WFCO product.

Specifications are subject to change without notice or obligation.

CONSUMER WARRANTY CLAIM PROCEDURE
Upon determination and validation by an authorized OEM dealer that a WFCO product has a defect, the dealer shall contact the WFCO warranty service number 877-294-8997 and obtain a return goods authorization (RGA) number. This number shall appear on all correspondence with warranty service. Upon validation of the warranty, WFCO shall replace or repair the product with a like product. The RGA number shall be placed on the outside of the carton used to return the product, for ease of identification. Do not mark directly on the product. The product must be packaged properly to avoid further damage to the product, which could cause a non-warrantable condition.

CD-M-00003-4

FAQ’S

What is the weight of the 55 A unit?

The weight of the 55 A unit is 11.57 lbs.

Can I install the converter in a wet location?

No, the converter is not designed for mounting in wet locations. It must be protected from direct contact with water.

Is the installation near appliances that produce heat or water allowed?

No, it is not recommended to install the converter close to appliances that are a source of heat or water, such water heaters, furnaces, and under refrigerators.

What is the purpose of reverse battery protection?

Reverse battery protection prevents permanent damage to the converter from an incorrect battery connection.

References

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