LIMITED WARRANTY
For one (1) year from the date of purchase, The Guest Co., Inc.
will, at its discretion, repair or replace for the original consumer,
free of charge, any part or parts found upon examination by Guest
Co., Inc., 48 Elm St., Meriden, Connecticut to be defective in
material or workmanship or both. Proof of purchase required. All
transportation charges under this warranty must be borne by the
consumer.
I
THERE IS NO OTHER EXPRESSED WARRANTY. IMPLIED
WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
ARE LIMITED TO ONE YEAR FROM THE DATE OF
PURCHASE. THIS IS THE EXCLUSIVE REMEDY AND
CONSEQUENTIAL DAMAGES ARE EXCLUDED WHERE
PERMITTED BY LAW.
CUSTOMER SERVICE
If you, our customer, have any questions concerning Guest
products, parts or warranties, please contact our Service
Department Monday through Friday between 9:00 AM and 4:00
PM Eastern Time.
MODEL 2815M
(203)-238-0550
(203)-634-1696 fax
BATTERY CHARGER
The Guest Co.
48 Elm St. Meriden, CT 06450 USA
INSTALLATION AND OPERATION
INSTRUCTIONS FOR
MODELS 281 5M11 15 AND 281 5M123D
I
A Valley Forge Company
Writefor your free copy ofthe new GUEST catalog.
ShipWrite
4.
Services
1-24020
(formerly 2615AM)
I5AMP,2-BANK
IMPORTANT!
READ THESE INSTRUCTIONS BEFORE
INSTALLING AND USING THIS PRODUCT.
Keep these instructions for future reference
Description
Specifications
The Guest 2815M ChargePro is a solid-state “3-stage” battery
charger and is lightweight, silent and completely automatic. It can
produce a full 15 amps of 12 volt DC charging current while using
much less AC current than other chargers. This revolutionary new
design can rapidly recharge and individually maintain 2 separate
battery banks at one time. If a DC short or overload occurs, the
charger will reduce its output voltage to a safe level, then
automatically return to normal after the overload is removed. Its
water resistant polycarbonate housing and urethane coated circuitry
make it ideal for harsh environments. Every Guest 28l5M charger
is tested under load before shipment to assure superior reliability.
Total output current
maximum:
“float” mode:
Output voltage:
with 15 amp load:
finish (“float”) voltage:
Input voltage 2815M/1 15:
Input voltage 2615M/230:
Max. AC draw at 115 volts:
Housing dimensions
Application
Diagram 1
15 amps at 12 volts DC
0.1 to 0.3 amps at 13.! volts DC
12 volts DC minimum
13.5 volts DC (+7- 0.1 volts DC)
90 to 140 volts/SO or (0 Hz AC
190 to 240 volts/SO or 60 Hz AC
3 amps
9”H x 7 7/8”W x 4”D
-
-
Guest 2815M charging method
This battery charger is ideal for a wide variety of installations using
12 volt lead-acid or gel-cell batteries. Some of the most popular
battery configurations are:
•
•
Two Group 24 batteries
Two Group 27 batteries
•
One Group 4D battery and one Group 24 battery
Installations using more or larger batteries are possible, but it may
require a longer time to recharge the batteries in these installations.
Longer recharging times can also result if there is equipment on
board that requires substantial amounts of DC current while at
dockside, such as:
•
a DC only refrigerator or ice maker
•
a DC only air conditioner or heater
a large number of 12 volt DC lights in use
Iwo different versions of the Guest 281 5M are available:
• The model 2815M11 15 for 115 volt AC input, and
•
The model 2815M1230 for 230 volts AC input.
Both versions will function with either 50 Hz or 60 Hz AC inputs.
—1—
Time
0
>
C)
0
V
16
15
14
~V~V~VV~
13
12
11
~~VV~~VV
10
9
8
V
7
6
5
4
3
2
1
V
V
01 01 01 01 01
DC Amps
J RBuIk
~Absorbtion
0 Float
This device meets or exceeds FCC Part 15 Standards elating to
RF interference. This device is not intended for use with
combination 12/24 volt battery systems.
If your vessel does not already have an ABYC app’ oved AC
dockside power system, The Guest Company strongly
recommends that you consult with a qualified marine ~1ectrician
before installing this device. Improper AC conne tions can
cause physical injury or damage to your vessel.
-2-
Checklist for required tools and mate rials
Operation
When the 2815M charger senses a drop in battery voltage, it
automatically increases its output to re-charge the battery. By
using a sophisticated 3 stage charging method, it recharges your
batteries in the fastest, healthiest way.
The amp meter on the front of the charger shows the total
combined charging current during the first and second charging
stages, (“bulk” charging and “absorption” charging). When the
low battery approaches full charge, the charger reduces its output
to a “float” charging rate, indicated by the green LED light. This
low float voltage gently “tops off’ your batteries, then keeps them
fully charged and ready for use without overcharging.
The total 15 amp output of this charger is divided between both
ofthe batteries connected to it, however the charge being applied
to each battery is individually regulated.
When using the 281 SM to charge a single battery, a jumper wire,
(not included), must be connected between the two DC positive
(+) outputs ofthe charger. (See page 10.)
The Guest ChargePro 281 SM battery charger is fully automatic,
requires no maintenance, and can be left unattended indefinitely.
However, the electrolyte (battery acid) in lead-acid batteries can
gradually evaporate, particularly in warm climates. Check your
batteries once a month as a part ofyour maintenance routine.
)(
Tools
Electric drill with 1/4” and 1/16” drill bits
Wire cutting and crimping tools
2
Safety glasses, work gloves, and long sleeved shirt
Additional materials
4
4
20
20
1
6
as
~i
as
req.
Overload Protection
Ifan electrical overload(excessive demand) occurs in the DC system
connected to this charger, it will reduce its output voltage to a safe
level. In the event of a dead short, the charger’s output voltage will
effectively be zero volts.
Once the overload or short is removed, the 281 SM will automatically
resume normal operation.
-3-
1/4” slotted screwdriver
5/16” and 3/8” socket wrenches or nut driven
Portable DC volt meter
4
3
1
#10 SS hex head or round head machine bolt’
(Bolt length = mounting surface thickness ph s 1”)
each #10 SS flat washers, lock washers and hex nuts.
7” cable ties w/mounting holes (cx Beckson L-7M1-I)
# 8 x 3/4” SS pan head self-tapping screws (for
fastening cable ties to mounting surface).
AC wiring
5 amp AC circuit breaker or fuse (if one is rot already
installed and available in your Main AC panel)
#8 ring terminals (to attach the AC input wires to the
charger and to the main AC panel).
3 conductor, 14 gauge Marine UL listed AC cable to
bring powerfrom your AC Main panel to the charger.
DC wiring
Tinned, stranded copper wire to connect the charger’s
DC outputs to your batteries. (Red wire for positive (+)
connections and black wire for ne~ative (-)
connections).
Use the table “DC wire size” on page 8 to determine
the correct diameter wire to use ror your
installation.
#10 ring terminals to attach DC output wires to
charger.
5/16” ring terminals (for connecting the 1)C output
wires to the batteries’ positive (+) terminal pcsts).
ring terminal to fit the engine’s negative (-) ground post
-4-
Installation
Preparing the mounting location
1. Hold the battery charger against the surface wh ~re you
are planning to mount it. (Be sure that you will bc able to
Before beginning this installation -
drill holes through this surface later without damage to
wiring, tanks or other equipment.) Using a penc:1, mark
•
Open engine hatches and operate bilge blowers for 10
minutes to remove dangerous fumes and hydrogen gas.
the locations of the battery charger’s four mounting holes
onto the mounting surface
•
Disconnect all AC power sources.
•
Disconnect negative battery cables from all batteries.
•
Wear safety goggles, gloves and long sleeved shirt when
drilling or while handling batteries.
Choosing a mounting location
1. Mount this charger in an upright position only, with the
aluminum cooling fins running vertically. It is important
that the charger have at least 6 inches of unrestricted
airflow on all sides for effective cooling. Do not install
onto a carpeted, upholstered, or varnished surface.
2. Although this charger is ruggedly designed, avoid
mounting it in an areathat is open to rain, snow or spray.
3. Avoid mounting this charger within 3 feet of a compass,
TV or FM radio.
4. Select a mounting location which will allow the shortest
DC wires between the charger and the batteries.
5. Do not mount this unit directly over your batteries
because their corrosive fumes can damage the circuitry
inside this charger.
6. Be sure that the mounting location will allow access to
the connections on the charger after it is mounted.
-5-
2. Drill four 1/4” holes through the mounting surface at the
locations you marked with pencil.
Note: Do not mount the charger until ~~you
have
made thefollowing electrical connections
Electrical connections
Installing the Guest 2815M1115 or 2815M/230 ~equires
making two different types of electrical connections: the DC
(12 volt battery system) and the AC (dockside power)
Planning the DC connections
You can configure the Guest 281 SM charger to main:ain one
or two separate 12 volt batteries. There are several ways to
connect this charger into your present 12 volt system.
The simplest and most widely used connection metho i is:
1. Run one red DC wire from each of the charger’s :wo DC
positive (+) outputs to the positive posts ofeach battery.
When charging a single battery, you must conncct both
charging outputs to the battery.
2. Connect a black DC wire from the charger’s ommon
negative (-) terminal to the engine block’s ommon
negative ground terminal.
This method is illustrated in diagram 2 on page 7.
-6-
Making the DC connections
Planning the DC connections (cont.)
This is the most common type ofbattery charger installation:
1. Use the following table to determine the gauge
(thickness) of the wire you will need to carry the current
from the charger to your batteries safely and efficiently.
Diagram 2
Recommended DC wire sizes
Length of wire, (in feet) as measured from the battery
chargerto the farthest battery and back to the charger
red
Two 12 volt
batteries
--~----
12 volt DC negative
(-) ground
Two alternative methods for making the DC connections are:
I. connecting the DC positive (+) outputs of the charger to
the battery connections on your battery switches or
2. connecting the DC positive (+) outputs of the charger to
the output posts of your battery isolator. (Do NOT
connect the charger’s outputs to an isolator’s inputs.)
These methods are only recommended if your 281 SM will be
mounted much closer to your battery switches or battery
isolator, than it will be to your batteries.
For sample diagrams of these types of installations, refer to
Guest document 1-21681. This is included with all Guest
battery switches and isolators, and is available on request.
-7-
(maximum 3% voltage drop)
Max.
amps
10 feet
15 feet
20 feet
25 feet
30 feet
40 feet
50 feet
10
l4ga.
l2ga.
lOga.
tOga.
tOga.
8 ga.
6ga.
115
I2ga.
lOgs.
lOga.
Sga.
8ga.
6ga.
6ga.
20
10 ga.
10 ga.
8 ga.
6 ga.
6 ga.
6 ga.
4 ga.
25
10 ga.
8 ga.
6 ga.
6 ga.
6 ga.
4 ga.
4 ga.
30
10 ga.
8 ga.
6 ga.
6 ga.
4 ga.
4 ga.
2 ga.
40
8 ga.
6 ga.
6 ga.
4 ga.
4 ga.
2 ga.
2 ga.
50
6 ga.
6 ga.
4 ga.
4 ga.
2 ga.
2 ga.
1 ga.
from Section E9, table Vii ofthe American Boat and YachtCouncil (ABYC)
standards and Recommended Practices for 5mail Craft’
2. Find a path for the DC wires between the chargt~rand
your batteries. Remember to route the wires away from
hot surfaces or other areas where the wires could be
damaged. Make sure you will be able to fasten a ceVble tie
to a solid surface at least every 18 inches throughout the
length of the wires to support them according to ABYC
standard E-9. 1 5h.
-8-
I
The DC connections (continued)
3. You will also need to establish a path between the
charger’s common DC negative output and the common
negative (-) engine ground connection. This is normally
Remove the two screws on the lower face of the
expose the wiring terminals. The AC and DC
terminals are arranged as shown here:
Diagram 3
where the batteries’ negative cables connect to the engine
block. (When installing this unit in outboard powered
boats, the DC negative (-) charger output will be
connected directly to the negative (-) terminal of one or
both batteries.)
I
Do not connect any wires to the batteries or to the charger
until AFTER you have cut each one to size, crimped an
appropriate connector onto each end and securely mounted
the wires with the screw-down cable ties. This can help to
prevent accidental short-circuits during your installation.
4. After you have determined an appropriate path for the
DC wires to each battery, cut them to size, leaving three
feet extra. Strip 3/8” of insulation from the battery ends
of the red wires. Test fit a 5/16” ring terminal onto the
threaded positive (+) posts ofyour batteries. Remove the
ring terminal from the battery post and crimp or solder it
onto the battery end of the red wire.
5. Repeat step 4 for the red positive wire leading to the
other battery ‘s positive post~.
6. Repeat step 4 for the black wire, using a ring terminal
that will fit your engine’s negative ground terminal.
7. Use screw mounted cable ties or wire straps to fasten all
the wires between the batteries and the charger onto solid
surfaces. Avoid running wires over sharp edges or near
areas ofextreme heat.
-9-
to Battery 2
POSITIVE
POSITIVE
BLACK
to NEGATIVE
DC ground
(engine block)
NOTE: When charging only one I
a 12 ga. jumper wire must be a
between output posts DC #1 and DC
This is the correct way to attach terminals to the
Diagram 4
II 1l~
-10-
to
Making the AC connections
~AUflON!
If your vessel does not already have an ABYC approved AC
dockside power system. The Guest Company strongly recommends
that you consult with a qualified marine electrician before installing
this device. Improper AC connections can cause serious physical
injury and may damage your vessel.
Before making any AC connections, be certain that all sources of
AC current have been safely disconnected from the vessel.
DON’T ASSUME!
To use a grounded 3-prong outlet
Do not apply AC power until after you have made all cf the DC
connections. Use AC sockets with a ground fault interrupter
(GFCI) breaker. Do not use 2 blade ground adapter plug i.
1. Use only a heavy duty 3 conductor AC cord such a:; a Guest
part # U-2554 or Radio ShackTM part # 278-1258.
2. Crimp #8 ring terminals onto the three AC wires.
3. Make the AC connections on the front of the charger
according to diagram 3 on page 10.
4. Do not plug the charger’s cord into an AC outlet until
after you complete the following steps.
The Guest 2815M/1 15 and 2815M/230 chargers each require three
Finishing the wiring connections
AC connections. These connections are:
1. Connect the DC output wires to the DC output ten ninals of
the charger as shown in diagram 3 on page 10. Use a 3/8”
socket wrench or nut driver. Do not over tighten.
2. Connect the other end ofthe black (negative) DC ~ ire to the
engine’s common negative ground, or to the negativ~posts of
both batteries.
•
a Ground wire (normally green or green/yellow),
•
a Neutral wire (normally white or blue) and
•
a Hot or Line wire (normally black or brown).
To hard wire the charger into your AC system
1. Determine a safe path for the AC wiring between the charger and
Main AC panel. Avoid hot or sharp surfaces.
2. Fasten all wiring onto solid surfaces using screw-mounted cable
ties or cable straps every 18 inches.
3. Attach #8 ring terminals onto both ends of the AC wires by
crimping or soldering.
3. Install a 5 amp AC circuit breaker or fuse into the AC Hot wire
(black or brown), in your Main AC panel. Attach the AC Hot,
Ground and Neutral wires from the charger to the appropriate
connection points at the Main AC panel.
3. Connect the other ends of the red (positive) DC wires to the
positive posts of your batteries. NOTE: A small spark may
occur. This is normal.
4. Confirm that all sources of AC power are turned off. Connect
the AC input wires from the AC Main panel to the AC
terminals on the charger as shown on diagram 3 on page 10.
Use a 5/16” socket wrench or nut driver. Do not over tighten.
5. Replace the rectangular cover plate over the screw terminals
on the front of the charger, passing each wire through one of
the notches in the cover plate. Attach the cover plate to the
charger with the screws provided.
You are now ready to fasten the charger onto mounting ;urface.
-12-
—11—
r
Mounting the Battery Charger
Problem
1.
Charger does not
seem to be charging
batteries.
Fasten the charger onto the mounting surface as shown here:
Diagram 5
Cause
#10 lock washer
#10 flat washer
2.
The green LED
light blinks and the
amp me er porn er
fluctuates rapidly.
bolt
#10 flat washer
Fasten all wires leading from the charger onto the mounting
surface using cable ties. Avoid any sharp edges that might cut
the insulation ofthe wires. This completes your installation.
3.
The green LED
never turns on.
After 24 hours, use a voltmeter to check the voltage at the
positive and negative posts of each battery with the charger on.
Each battery should read between 13.2 to 13.6 volts DC. Ifyou
have large batteries, or a continuous DC load is present,
measure the battery voltages after 48 hours.
-13-
4.
The amp meter
does not move and
the green LED does
not light,
~
5.
The GFCI breaker,
(Ground
Fault
Circuit Interrupter),
turns off whenever
the
char er
is
turned on ~
I
Sol~tion
One or more defective or
damaged batteries,
1.
Test
batteries
and
replace i necessary.
2.
Charger has reduced its
output voltage
below
charging level due to a DC
overload or a DC short.
2.
Remove the source of
the overload or short,
and th~n re-test the
charger as described
under ‘Operation” to
confirm that it is
charging properly.
1.
Blown DC output fuses
due to the charger being
attached to the batteries
backwards.
I.
To repla~efuses:
a.
Unplug AC power.
b.
Remove charger cover.
A single battery has been
connected to the charger
without tying its two (+)
positive outputs together
with a jumper wire (Pg. 10)
c.
Inspect both fuses.
d.
If a fuse has blown, use
ONLY u Buss ATO 20
amp as ~. replacement.
I.
This could be due to:
1.
a.
A dead short or overload,
b.
One or more bad batteries.
c.
A heavy DC load on
batteries while charging.
(such as lights, pumps, etc.)
Disconnect the negative
(-) DC cutput wire from
the charger. Re-apply
AC po’.ver. The green
LED only should now
light. If it does, the
charger is OK. If not,
contact The Guest Co.
I.
Confirm that AC power is
available,
1.
Connect AC power
supply cr reset breaker,
2.
Inspect the charger’s AC
input wiring and wire
terminals for damage or
loose connections.
2.
Disconnect all
AC
power s)urces, and then
repair wiring.
3.
3.
Component failure.
Return i:harger to Guest
Service department.
1.
There is a problem in the
charger’s AC connections
or the AC power supply.
I.
Confirn’
2.
Testing your installation
Activate the battery charger by re-connecting your dockside AC
power. Observe the amp meter on the front of the charger. It
should show that current is flowing into your batteries. (Turn
on several DC lights if you are not sure if the meter is
registering.) When the batteries have reached full charge, the
green LED light on the front of the charger will turn on.
II
1.
(Note: Measure the
voltages
in
your
batteries as described
under “Operation” to
confirm that there is
actually a charging
problem.)
#10 hex nut
rubber washer
(included)
I
2.
.
Certain brands of GFCI
breakers are unusually
sensitive to “switching”
style power supplies.
-14-
that
the
charger’; AC cord is
intact, tien test the AC
power sipply.
2., Contact Guest service
for information.
Download PDF