Dometic CARAVAN B3200 Manual

1
Type 3254.331 Heat Pump With Mechanical Controls Installation And Operating Instructions
INSTALLATION & OPERATING
INSTRUCTIONS
Important:TheseInstructions
must stay with unit.
Owner read carefully.
RECORD THIS UNIT INFORMATION FOR FUTURE
REFERENCE:
Model Number
SerialNumber
DatePurchased
This manual must be read and un-
derstood before installation, ad-
justment, service, or maintenance
is performed. This unit must be in-
stalled by a qualified service tech-
nician.Modificationofthisproduct
can be extremely hazardous and
could result in personal injury or
property damage.
MODEL B3200
Roof-Top Heat Pump
used with
Mechanical Air Distribution Box
Model
3254.331
FormNo.3310129.0001/06
©2006DometicCorporation
LaGrange,IN 46761
SERVICEOFFICE
DometicCorporation
ForInformation
Contact:
www.dometic.com

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Type 3254.331 Heat Pump With Mechanical Controls Installation And Operating Instructions
SAFETY INSTRUCTIONS
This manual has safety information and instruc-
tionsto helpusers eliminateor reducethe riskof
accidentsand injuries.
RECOGNIZE SAFETY INFORMATION
Thisisthesafety-alertsymbol.Whenyou see this
symbolinthis manual,bealert tothepotentialfor
personalinjury.
Follow recommended precautions and safe op-
eratinginstructions.
UNDERSTAND SIGNAL WORDS
Asignalword ,WARNING ORCAUTION isused
withthesafety-alertsymbol.Theygivethelevelof
riskforpotentialinjury.
indicates a potentiallyhazard-
oussituation which, ifnotavoided, couldresultin
deathorseriousinjury.
indicates a potentially hazard-
ous situation which, if not avoided may result in
minorormoderate injury.
used without the safety alert
symbol indicates, a potentially hazardous situa-
tion which, if not avoided may result in property
damage.
Readandfollowallsafetyinformationandinstruc-
tions.
!
WARNING
!
CAUTION
CAUTION
!
A. Productfeaturesorspecificationsasdescribedorillus-
trated are subject to change without notice.
B. This Air Conditioner Is Designed For:
1. InstallationonaCaravanduringthetime the ve-
hicleismanufactured.
2. MountingontheroofofaCaravan.
3. Roofconstructionwithrafters/joistsonminimumof
40.5 cm centers.
4. Minimumof 5cmand maximumof10 cmdistance
betweenrooftoceilingofCaravan.Alternateinstal-
lationmethodswillallowforroofsmorethan10cm
thick.
C. Theabilityoftheairconditionertomaintainthedesired
inside temperature depends on the heat gain of the
Caravan.
Somepreventativemeasurestakenbytheoccupantsof
theCaravancanreducetheheatgainandimprovethe
performance of the air conditioner. During extremely
highoutdoortemperatures,theheatgainofthevehicle
may be reduced by:
1. ParkingtheCaravaninashadedarea
2. Usingwindowshades(blindsand/orcurtains)
3. Keeping windows and doors shut or minimizing
usage
4. Avoidingtheuseofheatproducingappliances
Operation on High Fan/Cooling mode will give optimum or
maximum efficiency in high humidity or high outside tem-
peratures.
Startingtheairconditionerearlyinthemorningandgivingit
a "head start" on the expected high outdoor ambient will
greatly improve its ability to maintain the desired indoor
temperature.
Fora morepermanentsolution tohighheat gain,accesso-
rieslikeDometicA&Eoutdoorpatioandwindowawningswill
reduceheatgainbyremovingthedirectsun.Theyalsoadd
aniceareatoenjoycompanyduringthecooloftheevening.
D. Condensation
Note: The manufacturer of this air conditioner will not be
responsiblefordamagecausedbycondensedmoistureon
ceilings or other surfaces. Air contains moisture and this
moisture tends to condense on cold surfaces. When air
enterstheCaravan,condensedmoisturemayappearonthe
ceiling, windows, metal parts, etc. The air conditioner re-
moves this moisture from the air during normal operation.
Keepingdoorsandwindowsclosedwhenthisairconditioner
is in operation will minimize condensed moisture on cold
surfaces.
GENERAL INFORMATION

3
Type 3254.331 Heat Pump With Mechanical Controls Installation And Operating Instructions
A. Precautions
Improperinstallationmaydamage equipment,
could endanger life, cause serious injury and/
or property damage.
1. ReadInstallationand OperatingInstructionscare-
fully before attempting to start your air conditioner
installation.
2. DometicCorporationwillnotbeliableforanydam-
ages or injury incurred due to failure in following
these instructions.
3. InstallationmustcomplywithAllNationalElectrical
CodesorLocalCodesorregulations.
4. DONOTaddanydevicesoraccessoriestothisair
conditionerexceptthosespecificallyauthorizedby
Dometic.
5. This equipment must be serviced by qualified per-
sonnelandsomelocalitiesrequirethesepeopleto
belicensed.
INSTALLATION INSTRUCTIONS
SPECIFICATIONS
TheManufacturergivesonlygeneralguidelinesforGenerator
requirements. These Generator requirements come from
experiences consumers have with our equipment in field
applications. When sizing Generators, the total electrical
powerconsumptionofthecaravanmustbeconsidered.Keep
in mind that Generators lose power because of altitude
increaseabovesealevel,highoutsidetemperaturesandlack
ofmaintenance.
Type 3254.331
Heat Pump
Nominal Capacity (KW) 3.2
Electrical Rating 220 - 240 VAC 50 Hz. 1Ph.
FL Amps (Comp/Motor) 5.2/0.9
LR Amps (Comp/Motor) 26.0/4.4
Power (KW) 1.3
Min. Wire Size Up to 8 M, use 1.5 mm2 Copper
Circuit Protection 10 Amp Time Delay Fuse or
10 Amp Circuit Breaker
Generator Size
1 Unit 3.5 KW
2 Units 5.0 KW
B. Choosing Proper Location For The Air
Conditioner
Thisairconditioner isspecificallydesignedforinstalla-
tion on the roof of a Caravan. When determining your
cooling requirements, the following should be consid-
ered:
•SizeofCaravan;
•Windowarea(increasesheatgain);
•Amountofinsulation inwalls androof;
•GeographicallocationwheretheCaravan
will be used;
•Personalcomfortlevelrequired.
1. NormalLocation-Theairconditionerisdesignedto
fitoveranexisting roofventopening.SeeFIG. 1.
1/2L LL
1/3L
2/3L
FIG. 2
WARNING
!
FIG. 1
2. Other Locations-When no roof vent is available or
anotherlocationisdesired, thefollowingis recom-
mended:
a. For one unit installation: The air conditioner
should be mounted slightly forward of center
(front to back) and centered from side to side.
See FIG. 2.
b. Fortwounitinstallations:InstalloneAirCondi-
tioner 1/3 and one Air Conditioner 2/3’s from
frontofCaravanandcenteredfromsidetoside.
See FIG. 2.

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Type 3254.331 Heat Pump With Mechanical Controls Installation And Operating Instructions
3. Check the location acceptability before beginning
the installation.
a. Ifpossiblemounttheairconditionerinasection
oftheroofwhichisbothflatandlevelwhenthe
caravanisparkedonalevelsurface;otherwise,
asidewayspitchorforwardpitchupto8°canbe
tolerated, but a backward pitch can never be
accepted. See FIG. 3.
d. The roof must be designed to support 60 Kg.
when the Caravan is in motion. Normally a 90
Kg. static load design will meet this require-
ment.
FIG. 3 OK
Side Side
Good
8° With A/C
Facing Forward
b. Check for obstructions in the area where air
conditioner will be installed. See FIG. 4 & 5.
54 cm
KEEP THESE AREAS
FREE OF OBSTRUCTIONS 30 cm
REAR
OF
UNIT
10 cm
10 cm
10.5 cm
18 cm
18 cm
Center Line
of Unit
Center Line
of Unit
10 cm 10 cm
7.5 cm
7.5 cm
51 cm
Air Box
PERIMETER
35.5 x35.5 cm
OPENING
56 cm
35.5 x35.5 cm
OPENING
FIG. 4
c. Check inside the Caravan for return air kit
obstructions(i.e.dooropenings,roomdividers,
curtains, ceiling fixtures, etc.) See FIG. 6.
FIG. 5
97 cm
24 cm
73 cm
51
cm
56 cm
6.4 cm
It is the responsibility of the installer of this
air conditioner system to ensure structural
integrity of the Caravan roof. Never create a
low spot on the roof where water will collect.
Water standingaround the air conditioner may
leak into the interior causing damage to the
product and the Caravan.
CAUTION
Roof /Return Air Grill - Cross
Section
Light
35.5 cm
ProhibitsInstallation
Cabinet - Prohibits Use
FIG. 6

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Type 3254.331 Heat Pump With Mechanical Controls Installation And Operating Instructions
C. Roof Preparation
1. OpeningRequirements-Beforepreparingtheceil-
ing opening, read all of the following instructions
beforebeginningtheinstallation.
If a roof vent opening will not be used a 35.5 cm x
35.5 cm opening must be cut through the roof and
ceilingoftheCaravan.Thisopeningmustbelocated
betweentheroofreinforcingmembers.
FIG. 8
DoNotCut
RoofStructure
OrRafters
Good-Rafters
SupportedBy
CrossBeams
GoodLocation-
Between Roof
Rafters
Frame Opening So It
Won't Collapse When
Bolting Down Unit
Leave Access For Power
Supply Wiring
38 cm Min.
AtFrontOf
Opening
2.5 cm Min.
FIG. 7
There may be electrical wiring between the
roof and the ceiling. Disconnect 220-240 volt
AC power cord and the positive (+) 12 volt DC
terminal at the supply battery. Failure to fol-
low this instruction may create a shock haz-
ard causing death or severe personal injury.
WARNING
!
The35.5cmx35.5cmopeningispartofthereturn
air system of the Air Conditioner and must be
finished in accordance with all national or local
codes.
2. RoofVentRemoval
a. Unscrewandremovetheroofvent.
b. Remove all caulking compound around open-
ing.
c. Sealallscrewholesandseamswheretheroof
gasket is located. Use a good grade of all
weathersealant. SeeFIG. 7.
d. Iftheopeningexceeds36cmx36cm,itwillbe
necessary to re-size the opening to 35.5 cm x
35.5 cm.
e. Iftheopeningislessthan35cmx35cm,itmust
beenlarged.
3. NewOpening-(InstallationOtherThanVentOpen-
ing)
a. Marka35.5cmx35.5cmsquareontheroofand
carefullycut theopening.
b. Using the roof opening as a guide, cut the
matching hole in the ceiling.
c. Theopeningcreatedmustbeframedtoprovide
adequate support and prevent air from being
drawnfromtheroofcavity.Lumber2cmormore
in thickness must be used. Remember to pro-
videanentranceholeforpowersupply.SeeFIG.
8.
D. Wiring Requirements
1. 220-240VACSupplyLine
Routeacopper1.5mm2,withground,220-240VAC
supplylinefromthetimedelayfuseorcircuitbreaker
boxto theroofopening.
a. This supply line must be located in the front
portion of the 35.5 cm x 35.5 cm opening.
b. ThepowerMUSTbeonaseparate10Amptime
delay fuse or 10 Amp circuit breaker.
c. Make sure that at least 38 cm of supply wire
extendsintotheroofopening.Thisensuresand
easy connection at the junction box.
d. WiringmustcomplywithallNationalandLocal
WiringCodes.
e. Useasteelsleeveandagrommetorequivalent
methodstoprotectthewirewhereitpassesinto
theopening.
E. Placing Air Conditioner On The Roof
This unit weighs approximately 45 Kg. To
preventbackinjury,useamechanicalhoistto
place Air Conditioner on roof.
FIG. 9
1. Removethe airconditioner fromthe cartonanddis-
card carton. See FIG. 9.