Guest 2722-B User manual

I-27122 Rev E EC 3429
1
R
MODEL 2722-B
30 AMP, 2 OUTPUTS, 3 STAGE
BATTERY CHARGER
OWNER’S MANUAL
Connections at a lance:
The Guest Model 2722-B charges 2 batteries, as shown below. In agreement with the
American Boat and Yacht ouncil (A.B.Y. .), Guest strongly recommends using a 25
Amp fuse in each positive (+) output cable.
1. harger POS (white wire with fuse)
to battery “ + “.
2. harger NEG (black wire) to battery “ - ".
3. Plug A line cord into a GF I protected
wall socket.
4. Remove connections in the reverse order.
SAVE THESE INSTRUCTIONS

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1. INTRODUCING THE CHARGER
The Guest hargePro Model 2722-B offers you a unique selection of independent
outputs to economically satisfy all battery combinations normally encountered in the
marine industry. Each product in the series is encapsulated in a waterproof,
shockproof, thermally conductive compound to provide you many years of trouble
free operation in wet and/or corrosive environments.
2. IMPORTANT SAFETY INSTRUCTIONS
This manual contains important safety and operating instructions for the charger.
Read the entire manual before using the charger. Also read all instructions and
cautions for the batteries and equipment in the vicinity of the batteries.
WARNINGS
THIS CHARGER SHOULD BE USED TO CHARGE ONLY 12-VOLT DC LEAD
ACID OR GEL CELL TYPE BATTERY SYSTEMS. USE ON OTHER THAN A 12
VDC SYSTEM CAN CAUSE THE BATTERY TO EXPLODE AND CAUSE
PERSONAL INJURY.
RISK OF EXPLOSIVE GASES! WORKING IN THE VICINITY OF LEAD ACID
BATTERIES IS DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES
DURING NORMAL OPERATION. THEREFORE IT IS OF UTMOST IMPORTANCE
YOU FOLLOW THESE INSTRUCTIONS EXACTLY.
Personal Safety Precautions
Adhere to the following personal safety precautions when installing or working with
the chargers:
1. Someone should be within voice range or close enough to come to your aid when
you work near a lead-acid battery.
2. Have plenty of fresh water and soap nearby in case battery acid contacts your
skin, clothing, or eyes.
3. Wear complete eye protection and clothing protection. Avoid touching your eyes
while working near a battery.
4. If battery acid contacts your skin or clothing, wash them immediately with soap
and water. If acid enters your eye, flood the eye with cold, running water for at
least ten minutes and get medical attention.
5. Never smoke or allow an open flame in the vicinity of the battery.

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6. Do not drop a metal tool onto the battery. It may spark, short circuit the battery and may
cause an explosion.
7. Remove all personal metal items such as rings, bracelets, necklaces, and watches when
working near a lead-acid battery. A battery can produce short circuit currents high enough to
weld a ring or the like to metal, causing a severe burn.
Preparin to Char e Precautions
Before charging a battery with the charger, read the following precautions:
1. Do NOT operate the charger if the input or output cables or an LED is damaged.
2. Make sure all accessories on the product you are charging are OFF.
3. If the battery or batteries must be removed from the product, always remove the grounded
terminal from the battery first.
4. Be sure the area around the battery is well ventilated while the battery is being charged. Gas
can be forcefully blown away using a piece of cardboard or other non-metallic material as a
“hand fan”.
5. lean battery terminals. Be careful to keep corrosion from coming in contact with your eyes.
6. Add distilled water in each cell until battery acid reaches levels specified by the battery
manufacturer. This helps purge excessive gas from cells. Do not overfill. For a battery without
cell caps, carefully follow the manufacturer’s recharging instructions. Check water levels
frequently.
7. Study all battery manufacturer’s precautions.
8. Never allow ring terminals to touch each other.
9. NEVER charge a frozen battery.
10. Please be sure the D system to which the charger is connected is not drawing excessive
current from the battery for extended periods of time while the charger is operating. This is
important to ensure the charger correctly transitions through each charging stage to finish
with the float voltage level. If the D system is drawing continuous current while charging,
reduced life or damage to the battery may occur.
Groundin Precaution
DANGER
Do not operate this char er with a two bladed round adapter plu or extension cord.
Doin so can result in serious personal injury.
CAUTION: To reduce the risk of shock, connect only to a properly grounded outlet.
3. INSTALLING THE CHARGER
Choosin Mountin Location
The charger should have at least eight inches of unobstructed area on all sides of the unit for
effective cooling. The case of this charger will become warm during operation. Do not install onto
a carpeted, upholstered, or varnished surface.

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Mountin the Char er
1. Use corrosion resistant # 10 bolts, backed by a flat washer, and secured to the
mounting surface with a split-ring washer.
2. Hold the charger to the mounting surface and mark the holes.
3. Remove the charger and drill the mounting holes.
4. Align the charger and assemble the mounting hardware. Secure.
Makin Connections
DANGER
Before workin on electrical equipment, first determine there is no live AC
power! Double-check power connections and all battery terminations.
heck polarity of battery posts. The POSITIVE (POS., P, +) battery post usually has
a larger diameter than the NEGATIVE (NEG., N, -) post.
Refer to Connections at a lance for proper D and A terminations.
4. OPERATING THE CHARGER
When this charger senses a drop in battery voltage, it automatically increases its
output to re-charge the battery. When the low battery returns to full charge, the 2722-
B maintains very small current flow to keep the batteries fully charged and ready for
use without overcharging. The total 30-amp output of this charger is divided between
the two outputs.
The Guest hargePro 2722-B battery charger is fully automatic, requires no
maintenance, and can be left unattended. However, the electrolyte (battery acid) in
lead acid batteries can gradually evaporate, particularly in warm climates. For this
reason, check the levels in your batteries once a month as a part of your normal
maintenance routine.
Timer Feature
The timer allows the charger to stay in the absorption mode for approximately 2 hrs.
Once it has timed out, it brings the output voltage down from 14.50VD (Absorption
voltage) to 13.30VD (Float voltage) while still maintaining output current. This keeps
the batteries from boiling while maintaining the current needed for dc loads.

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Overload Protection
If an electrical short or overload (excessive demand) occurs in the D wiring
connected to this charger. The charger will reduce its output voltage to avoid internal
damage. The Guest model 2722-B has initial electronic current limiting. When an
electrical short occurs, the red LED on the front panel will be on. The overload or
short must be removed in order for the charger to start charging again.
The LED Function Chart below describes the charging process.
Display Operatin condition
Red
Green
When the red LED is on, it indicates that your batteries are discharged
and the model 2722-B is recharging them at the "BULK" rate (stage 1).
This charging rate is 15 Amps.
While the red LED is on, the voltage measured (with the charger on) will
be 11.8 to 14.20 Volts.
If the red LED stays on for more than 24 hours, refer to Problem 1 in the
troubleshooting section in this manual.
Red
Green
When both the green and the red LED’s are on, the 2722-B is charging
at an "ABSORPTION" rate (stage 2). This mode of charging gradually
"tops off" your batteries, and reduces harmful sulfating. While both
LED’s are on, the voltage measured (with the charger on) should be
approx. 14.20 to 14.80 VD .
If both lights stay on longer than 24 hours, refer to Problem 2 in the
troubleshooting section in this manual.
Red
Green
When the green LED is on, the model 2722-B is charging at a "FLOAT”
or “MAINTENAN E" rate of less than 1.5 Amps, (stage 3). Your
batteries are now 90% charged and ready for use. This "float" charging
current will gradually decrease to as low as 0.1 Amps as the batteries
reach 100% charge. They will now be kept at full charge without over-
charging.
If the green LED stays on when your battery is known to be low, refer to
Problem 3 in the troubleshooting section in this manual.
If the timer feature is active only the Green LED will be on at a Float
voltage of 13.30 VD while still maintaining output current.
BOTH LEDs
OFF
Refer to trouble shooting section in this manual.

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5. MAINTAINING THE CHARGER
Periodically clean all of the battery terminals with baking soda and tighten all
connections. No other maintenance on the charger is required.
6. TROUBLESHOOTING
Problem Cause Solution
1. harger does
not seem to be
charging
batteries
properly.
1. Batteries too large for the
charger to support or too
many batteries attached
to charger.
2. Red LED is off due to a
D overload or a D
short.
3. One or more defective
batteries.
4. omponent failure.
1. Install a higher amperage
battery charger or a second
charger.
2. Remove source of overload
or short.
3. Test batteries and replace if
necessary.
4. Return charger to Guest
Service department.
2. Static on TV or
radio whenever
the charger is
turned on.
1. ertain TV’s and
radios are unusually
sensitive to RF
interference.
2. harger is mounted
within 3 feet of TV or
radio.
1. Increase the distance
between the charger and the
TV or radio.
2. onnect TV or radio to an
A circuit other than the A
circuit used by the charger.
3. The GF I
breaker, (Ground
Fault ircuit
Interrupter),
turns off
whenever the
charger is turned
on.
1. There is a problem with
the A connections or
dockside power system.
2. ertain brands of GF I
breakers are sensitive to
“switching” power
supplies
1. onfirm that the harger’s
A ground connections are
intact then test dockside
power.
2. ontact Guest service for
info.
4. Both LEDs are
off.
1. The timer may have
timed out.
2. External loads exceed
the charger’s output.
1. Recycle the charger’s A
voltage (unplug A cord of
charger and allow to sit 2 - 5
minutes before reapplying
the A cord) will reset the
Absorption timer allowing the
charger to cycle through its
three stages.

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7. SPECIFICATIONS
Output:
harging: 12.0 Volts D (min.) @ 15 Amps each output
Maintaining: 13.30 Volts D at 0.1 to 0.3 Amps
Input:
Rated A Voltage 100 - 130 volts/ 60 Hz A
urrent Draw 6.3 Amps at full output
Maximum recommended battery size:
For recharging: Up to 200 Amp-Hours each output
Maintenance only: Up to 350 Amp-Hours
Physical Dimensions:
Height x Width x Depth 6.5” x 9.5” x 2.75”
able Lengths:
D able Lengths 6ft
10
11
12
13
14
15
Guest Model 2722
-
B Char in Modes
0
20
40
60
80
100
% Rated Charging Current
FLOAT /
Maintenance
(GREEN)
ABSORPTION
(RED/GREEN)
BULK
(RED)
Output
Voltage
to
Battery

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LIMITED WARRANTY
For two (2) years from the date of purchase, The Guest o. will, at its discretion, repair or
replace for the original consumer, free of charge, any parts found defective in material or
workmanship.
Proof of purchase is required: A computerized register receipt is required. Handwritten receipts
are not accepted for warranty proof of purchase.
There is no other expressed warranty. Implied warranties, including those of merchantability and
fitness for a particular purpose, are limited to two years from the date of purchase. This is the
exclusive remedy and consequential damages excluded where permitted by law.
Tel: [phone] Email: [email protected]
Fax: [phone] Website: www.marinco.com