Magnum Energy RD1824, RD2824, RD4024 Operator's Manual
R D S eries
I nverter / C hargers
Opera tor ’s Ma nua l
I M P O R T A N T S AF E T Y I N S T R U CT I O N S
This ma n u a l c ontains im portant safety instructions tha t mus t me follow e d
dur ing the ins talla tion and opera tion of this product.
To r educe the ris k of e lectr ica l s hock, fir e, or other safety ha za rd, the following safety sym bols have bee n placed thr oughout this ma nua l to indica te
dangerous and im portant s afe ty ins tr u ctions .
WAR NI NG - I ndicates a da ngerous voltage or condition ex is ts .
CAUT I ON - I ndicates a cr itica l step necess ary for the safe installa tion
and opera tion of this dev ice.
NOTE - I ndicates an im por ta nt s ta tem ent. Follow thes e ins tr u ctions
clos e ly.
ATT E NTI ON - E lectrosta tic S ens itiv e D ev ices. Obs er v e pre c a utions for
handling.
All e lectrica l work m ust be perform e d in a ccordance with local, s ta te and
fede ral e le c trical codes.
R e ad all instructions and s afe ty infor mation contain e d in this m anual befor e
ins ta lling or us ing this produ ct.
This product is de s igned for indoor / com par tm ent ins ta lla tion. I t mus t not
be ex pose d to r ain, s n ow, m ois tur e or liquids of any ty pe.
Use ins ula ted tools to redu ce the ch a nce of ele ctr ica l shock or accidental
short cir cuits .
R e m ov e all jewelry such a s r ings , wa tch e s , bra cele ts , etc., when installing or
pe rfor ming mainte nance on the inverter.
Alway s disconnect the ba tterie s or energy sour ce prior to installing or pe r for m ing m ain tena nce on the inv e rter.
Liv e powe r m ay be pre s ent at m or e th a n one point s ince an inv er te r u tilizes
both ba tteries and AC .
Alway s v er ify prope r wiring prior to sta rting the inv e rter.
Ther e ar e n o us er s ervice able pa rts contained in this product.
S A V E T H E S E I N S T R U C T I O N S
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I M P O R T A N T
B A T T E R Y S A F E T Y I N S T R U CT I O N S
Wea r ey e protection s uch as safety glas s es whe n wor k ing with ba tterie s .
R e m ov e all jewelr y such a s r ings , watches, bracelets, etc., when ins ta lling or
pe rfor ming mainte nance on the inverter.
Nev e r work alone. Alwa ys ha v e som e one near you whe n work ing around
ba tteries.
Use pr oper lifting techniques when w or k ing with ba tterie s .
Nev e r use old or untes ted ba tterie s. C heck ea ch ba ttery 's la bel for age, ty pe
and date code to e nsur e all ba tteries are identical.
B atteries are sensitive to cha n ges in te m pe r a ture . Alway s insta ll ba tterie s in
a stable env ir onm ent.
I ns ta ll ba tte r ies in a well ventila ted ar e a. Ba tte r ies ca n produce ex plos ive
gas s es. For com pa r tm ent or enclos ur e ins ta lla tions , alway s v ent batteries to
the ou ts ide .
Provide at leas t one inch of air spa ce between ba tteries to prov ide optim um
cooling.
Nev e r sm ok e when in the vicinity of ba tte r ies.
To pre v ent a s pa r k a t the battery and r educe the cha nce of e x plos ion , a lway s
conne ct the ca ble s to the batteries firs t. Then conne ct the ca ble s to the
inv e rter.
Use ins ula ted tools at all tim es .
Alwa y s verify prope r pola rity and voltage be fore conne cting the ba tter ies to
the inve r ter.
To r educe the cha nce of fir e or explos ion, do not short- circuit the ba tteries.
I n the even of accidental e x posur e to battery acid, wa sh thorou ghly with
soa p and wa ter. I n the ev e n of e x posur e to the eyes , flood them for at leas t
15 m inutes with ru nning water and seek im me diate medica l attention.
R e cycle old ba tte r ies.
S A V E T H E S E I N S T R U C T I O N S
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Magnum Energy
RD Series Inverter/Charger
Table of Contents
S e c t io n D e s c r ipt i o n P a g e
1 . I n tr od u ct i o n 1
1. Features and Benefits 1
2. Standard Features 1
3. How an In verter/Charger W orks 3
4. Appliances and R un Time 3
5. The RD Series 5
2 . I ns t a ll a tio n 7
1. Unpacking and Inspection 7
2. Pre-Installation 7
Locating the In verter 7
Locating Dedicated Batteries (optional) 7
Hardw are / Materials R equired 8
Tools R equired 8
Wiring 8
AC Connections 8
DC Connections 8
AC Grounding 8
DC Grounding 8
Torque R equirements 9
AC Main P anel 9
Circuit Protection 9
Wire R outing 9
3. Installation 11
In v erter Mounting 11
Battery Installation 1 1
Battery Cables and Sizing 12
DC Wiring 12
DC Grounding 12
Negativ e Cable 12
Positiv e Cable 12
Battery Wiring 13
Pa rallel Connection 13
Series Connection 15
Series/P a rallel Connection 15
DC Fuse Block 17
AC Wiring 1 9
AC Input (Shore P ower) R outing 19
AC Input (Gener ator) R outing 19
Main AC Electrical P anel R outing 19
Wiring the Inv erter AC Input 21
Wiring the Inv erter AC Output 21
Final Inspection 21
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Table of Contents , continued
S e ct io n D e s cr ip tio n P a g e
2. I ns ta lla t i on , con tin ue d
4. Options 25
B atter y Te mpe ra ture S ens or I ns ta lla tion and W iring 2 5
R em ot e Contr ol I ns ta lla tio n and W irin g 2 5
AGS Modu le 25
S m a rt S hunt 2 5
S tackin g Cable K it 25
5. S ta rt-up an d Test 26
Conne ctin g the Batte ries to the I nverter 26
Fina l Ins pection and Pow er -up 26
C onfigu ring the I nverter 2 7
3. O p er a ti on 2 8
1. Ope ra ting th e I nv er ter 29
S ear ch 29
I nv erte r Mode 29
AC S hore Powe r Mode 2 9
B ulk Charge Mode 29
Abs or ption Cha rge Mode 29
Float Cha rge Mode 29
B attery S aver
Fa ult or Alarm C onditions 3 1
Low B at tery 3 1
High Ba ttery 3 1
Over loa d 3 1
Over tem pera ture 3 1
T M
Mode 29
4 . T r o u ble s h oot in g 3 3
1. B as ic Tr oubleshootin g 33
5 . P r e v e nt iv e Ma in te na n c e 3 4
1. R ecomm ended Inverter and Ba ttery Care 34
2. Off- S ea son S torage 34
6 . S p ec ific a ti on s 3 5
7 . W a r r an ty 3 6
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1 . I N T R O D UC T I ON
1 . F e a tu re s a n d B e ne fi ts
Congra tula tion s on your purcha se of the ME S er ies inverter/charger from Ma gnum
E nergy. The R D S er ies is a “ne w ge nera tion” inverte r de signed especially for ru gged
recreational vehicle usa ge. Powerfu l, yet s imple to us e, the Magnum Energy inv er ter
will provide you with yea rs of tr ouble- free perfor mance so you can e njoy the all of
th e com forts y ou hav e com e to expect from your R V, all backed by our lim ited 2 yea r
( 2 4- mon th war ra nty ) .
I nstallation is ea sy. S im ply conne ct the inv erte r’s outpu t to y our dis tr ibution
circuits or ele ctrica l panel; connect you r shor e power ca ble ( AC ) to the inv erte r’s
eas y- to-r ea ch ter mina l block; conne ct the batteries , and th en switch on the pow er.
Using the option al re mote control, y ou ca n ea sily operate your inverter from anywhere within your motor coach.
2 . S t a nd a r d F e a t u r e s
· Four Power Models (R D18 24, R D2 82 4, RD4 024 )
· S helf, B ulk hea d or Ups ide Down Mounting
· Modified S ine W av e Output
· Power Factor Correcte d Cha rge r ( S ine Wa ve)
· R S 4 85 Com m unication Por t
· R em ote Por t
· Fla s h Pr og ra m min g
· ON/O FF I nv er ter- mount ed S wit ch with LED I ndic ator
· 50 Amp Tra ns fer ( on D ua l I N / Dual O UT Models )
· E xtra Large AC Acces s Cov er with Te rm ina l S crew Block
· 36 0 degree DC C onnection Term inals wit h Cov er s
· B attery Tem pera ture S en sor - for optim um batte ry charging (optiona l)
· Alu min um C ov er
· S m ooth , Ae sthe tica lly Plea sing De sign
The following acce ssorie s ar e als o ava ila ble for RD S erie s pr oducts :
R em ote Con trol - for conv enient finge r tip opera tion
AGS Module - a utom atica lly s tarts and s tops your generator
S m ar t S hunt - prov ides precis e volta ge to D C current
S ta ck ing Ca ble Kit - des ign ed to a ccomm odate dual inv er ter configu ra tions
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1 . I N T R O D UC T I ON
2
F igu r e 1
R D S e r ie s I n v er te r / C ha r ge r
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1 . I N T R O D UC T I ON
3 . H o w a n I n v er te r / C ha r g e r W o r k s
An inv e rter ta ke s dir ect current ( DC ) from you r ba tterie s a nd turns it in to a lte rnating current ( AC) , exa ctly like you us e a t hom e. I t als o ta kes alterna ting current
when your motor coach is con nected to shor e power and tr ansfor ms it into dir ect
cur rent to re char ge your ba tterie s.
There are two m odes of ope ra tion as socia te d with an inv er ter / cha rger:
I nv er ter Mode :
Dir ec t current (DC ) fr om th e vehicle ’s ba tte ries is transfor med in to a lte rn at ing
cur rent ( AC ) for us e with you hous ehold electr ica l appliances .
Cha rger Mode :
Alternating current ( AC) is ta ke n directly from shor e power ( or othe r AC sour ces )
and pas sed directly to your household applia nce s. At the sam e tim e, th e incom ing
AC is als o converte d to DC to recha rge th e vehicle ’s batteries .
4 . A pp lia n c e s a n d R u n T im e
The RD S eries inv er ter/charger ca n power a wide ra nge of household a pplia nces
inclu ding sm all motors , ha ir dry er s, clock s a nd othe r ele ctrica l devic es . As with any
applia nce us ing batte ries for powe r, there is a certain length of tim e that it ca n run th is is ca lle d “r un tim e.” Ac tual run tim e depe nds on several var iables including the
size a nd the type of applia nce, the type of ba tteries installed in you r recreational
vehicle , as we ll as the ba tte ry ’s ca pa city and age. Other fa ctor s s uch as the batte ry ’s
state of charge and tem pera ture ca n als o affect the length of tim e y our applia nc es
can run.
Appliances such as TV s, VC Rs , ste re os, compute rs , coffe e pots, in ca ndescent
ligh ts and toa ste rs can all be s uccess fully powe re d by your inver ter. Lar ger electr ical
applia nces , however, such as s toves , wa ter he ate rs , etc. , ca n quic kly dr ain your
ba tterie s an d ar e not re com mende d for this applica tion.
All ele ctrica l a pplia nc e s ar e ra te d by the am ount of powe r the y cons ume. The
rating is prin ted on the product’s na me pla te label, us ua lly located on its ch as sis nea r
th e AC pow er cord. E ve n though it is difficult to calcu late e x actly how long an
inverter will run a particula r a pplia nce, the best adv ice is tria l an d er ror. Your RD
S erie s inv er ter ha s a built -in safegu ard th at autom atically pr otects your batte ries
fr om ov er dis char ge.
NOTE : For optimum pe rform ance , a m inim um batte ry bank of 200 AH r is
recom m ended.
D ev ic e L o ad D ev ic e L o ad
B lende r 4 00 W Coffee Ma k er 12 00 W
Com pute r 30 0 W C olor TV 15 0 W
Drill 50 0 W H air Dryer 10 00 W
Hot Plate 18 00 W I ron 100 0 W
Light ( Flo) 1 0 W Light (I nc) 10 0 W
Micr owave 1 000 W R e fridgerator 5 0 0 W
T a ble 1 - T y p ic a l A pp li a nc e P ow e r C on s um p tio n
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1 . I N T R O D UC T I ON
Power ON /O FF
S witch
Cha rgin g / I nver tin g
LE D
S tack Port
Ma gnum Net Por t
R em ote Por t
B attery Te mp S ensor
Port
F igu r e 2
R D S e r ie s I n v er te r / C ha r ge r
S w i tch , L E D a n d C on ne ct io n P or ts
AC Con ne ct ion s DC C onnect ion s
4
F igu r e 3
R D S e r ie s I n v er te r / C ha r ge r
E le ct ric a l C on ne ct i on P oi nts
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1 . I N T R O D UC T I ON
5 . T h e R D S e r ie s I n v er te r / C ha r ge r
The RD S eries inv er ter/charger is de signe d to allow ea sy acce ss to wiring, circuit
br ea kers, contr ols and LE D s ta tus indicator. Its die cas t ba se pla te with on e piece
alum in um cov er e ns ur es m ax imum dura bility with minimum weight, as well as cooler
m ore efficie nt opera tion . The inverter is equipped with the followin g fea tures :
ON / OFF Switch - us ed to m anually switch the inverter ON and OFF.
G re en LE D I ndica tor
· Medium flas h ( 1 every 2 seconds)
I ndica te s connected loads are being pow er ed from the ba tterie s ( inverting) .
· Fa st flas h ( 1 pe r second)
I ndica te s “s ea rch” m ode , conserv ing power when appliances are switch ed OF F.
· S olid
I ndica te s “bulk ” ch ar ge wh en the ba tteries a r e low a nd the inv er ter is connecte d
to shor e power.
· Fa st flas h ( 1 pe r second)
I ndica te s “a bsorption” ch ar ge wh en the ba tteries ar e alm os t fully recha rge d and
th e inverter is conne cted to shore pow er.
· S low fla sh ( 1 every 8 seconds)
I ndica te s “float” cha rge when ba tteries ar e fully ch ar ged and the inverte r is
connecte d to shore power.
· LE D off
I ndica te s a “fa ult” condition s uch as low ba ttery, overloa d or ov er temperature.
R em ote Control Por t - acc e pts conn ector for Ma gnum remote con trol ca ble .
BT S Port - accepts connector for re mot e ba ttery te mpe ra ture sensor ca ble .
Ma gnum Ne t Com m unic ation Port - accepts connector for Auto Gen S ta rt or S ma rt
S hunt ( DC current dis pla y) ca ble.
Pos itive Batte ry Te rm ina l - prov ides 360 de gree connection point for the pos itive
( + ) ca ble fr om the vehicle’s ba tterie s.
Negative Ba ttery Term inal - pr ovides 1 80 degree conn ection point for the
nega tive (- ) cable from the vehicle’s batte ries.
Cha ss is G round Conn ector - accepts cha ss is ground ca ble.
AC Access Cover - prov ides acc es s to internal AC screw term inal connections .
AC I nput Cir cuit Bre a ker - prote cts main AC (s hore powe r) inpu t circu it.
AC Ou tpu t 1 Circuit Break er ( optiona l) - prote cts the pr ima ry AC outpu t circu it
( on dua l out units only ) .
AC Ou tpu t 2 C ircuit B reaker ( optiona l) - protects se conda ry AC ou tpu t cir cuit
( on dua l out units only ) .
R D S eries Na mepla te La bel - pr ov ide s pr oduct and sa fety in for ma tion.
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2 . I N S T A LL A T I O N
th is pa ge left bla nk
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2 . I N S T A LL A T I O N
1 . Un pa ck in g a n d I n s pe ct ion
Ca re fully remove the RD S eries inv er ter fr om its shipping con ta ine r and ins pe ct all
contents . I f ite m s appear to be mis sing or da m aged, conta ct Magnum Energy
at (4 25 ) 35 3- 88 33 or your a uthor ized Ma gnum E nergy dea ler. I f a t all pos sible,
retain the shipping contain er in the ev en t the unit ever needs to be re turned for
fa ctory serv ice .
ATT E NTI ON: Ele ctr os ta tic S e nsitive Devices. Obs er ve pre ca utions for
handling.
2 . P r e - I n s ta lla tio n
B efore ins ta lling the inve rter, read a ll of the instructions and ca utionary m ar kings
containe d in this manual.
NOTE : T he inver ter is he avy. Us e proper lifting technique s during installation to
pr ev ent pe rs ona l inj ur y.
L oc at in g t h e I nv e rt er
The inverter must be mou nted in a cle an, dr y, ventila ted env ironm ent wh er e th e
am bient te mpe ra tures will not exceed 12 2 º F ( 50 º C) . The loca tion must be fully
access ible an d prote cted fr om ex pos ure to hea t producing device s. You ca n m ount
th e inverter horizonta lly, vertically or ups ide- dow n. I t mus t be secu re ly fa ste ned to a
shelf, bulk he ad, or other str uctural pa rt.
Allow en ough clea ra nce to a cces s the AC and DC conne ction points a s well as the
inverter’s cont r ols a nd s ta tus indicator. As with any inver ter, it sh ould be loca ted a s
close to the batte ries as poss ible. Longe r ba ttery ca ble runs te nd to loose efficienc y
and re duce the overall perfor mance of an inverter.
L oc at in g D ed ic a te d B a t te rie s ( o ptio na l)
Dedicated batte ries mus t be mounted in a clea n, dry, v entilated envir onm ent
where they are prote cted fr om high a nd low te mpe ra tures . The ba tteries m us t be
m ounte d upright ( if us ing liquid ba tterie s) . The
location m us t be fu lly access ible an d prote cted fr om ex pos ur e to he at pr oduc ing
de vices .
To ens ure optim um perfor mance, a ventila ted batte ry enclos ure is recom m ended.
The ba tterie s s hould be loca ted a s clos e as poss ible to the inv er ter. Longer ba ttery
cable ru ns te nd to loose efficie ncy and redu ce the overa ll perfor mance of an inverter.
Als o, do not m ount the batte ries be nea th the inv er ter (or in the s am e com pa rtm en t) .
B atterie s em it corros iv e fum es which could da mage the inv er ter ’s electr onics .
NOTE : For optim um pe rform an ce, Magnu m Energy re comm ends using AG M
( abs or bed gla ss ma t) batte ries such a s Life line
T M
brand batte ries .
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2 . I N S T A LL A T I O N
2 . P r e- I ns t a lla ti o n , continued
H a r dw a r e / Ma t er ia ls R e qu ir ed
Condu it, str ain- relie fs a nd appropr iate fittings
1/ 4" mou nting bolts an d lock wa shers
E lectr ical tape
W ire ties
T oo ls R e qu ir e d
Misc scr ew dr ivers Level 1/ 2" wr e nch
Drill and drill bits Plie rs W ire str ipper s
Level Pe ncil or Mark er Multim eter
W i rin g
Pre- pla n the wire and conduit runs . For ma xim um safety, run both AC and DC
wir es /ca bling in ( separate) conduit. Dir ect current wir ing, due to its potentia l to
ge ne ra te RFI , s hould be tie d toge ther with ele ctrica l tape. Wir ing and in sta lla tion
m ethods m us t confor m to all applicable electr ical codes .
NOTE : R un DC ca bling in tw isted pa irs , keeping th e runs a s sh ort a s practical.
A C Co nn ec tio ns
Use # 1 0 AW G ( or la rge r) THHN wire for all AC wir ing . Th e inverte r’s AC term inal
bloc ks a ccept up to # 6 AW G wir e.
D C Co nn ec tio ns
B attery to inverter ca bling shou ld be only as lon g as r equir ed. I f usin g # 2 /0 AWG
cables , do not ex ce ed 5 fe et (one wa y ) for 12 V DC s ystems .
Crimped and s ea led copper ring te rm ina l lugs with a 5/ 16” hole should be us ed to
connect the ba tter y cables to the inverter’s DC term ina ls .
A C Gr o un din g
The AC G round conn ection loca ted in the AC co mpa rtm ent m us t be wir ed to the ma in
AC Grou nd of the dis tr ibu tio n pa ne l.
D C Gr o un din g
The inverter/charger sh ould always be connecte d to a pe rm anent, gr ounded
wir ing sy st em . For the majority of installations, the negativ e ba ttery conductor is
bonded to the ve hicle’s s afety- gr ounding condu ctor ( gr ee n wire) a t only one point in
th e sy s tem . T he siz e for the conductor is usually ba sed on the size of th e la rges t
conductor in the DC sy s tem . DO NOT con nect the ba ttery ne ga tiv e ( -) cable to the
vehicle ’s safety groun d. Connect it only to the inv er ter ’s ne ga tiv e ba ttery te rm in al.
I f ther e are any non -fa ctory installed D C applia nces on board the ve hicle, DO NOT
gr ound the m at the sa fety groun d. Grou nd them only at the ne ga tiv e bu s of th e DC
load center (a s applica ble ).
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