Dometic 3241.301 Installation & Operating Instructions Manual Download Page 3

3

A.  Precautions

INSTALLATION INSTRUCTIONS

B.  Choosing Proper Location For The Unit

This unit is specifically designed for installation on the roof 

of a Caravan. When determining your cooling requirements, 

the following should be considered:

• 

Size of Caravan;

• 

Window area (increases heat gain);

• 

Amount of insulation in walls and roof;

• 

Geographical  location  where  the  Caravan  will  be 

used;

• 

Personal comfort level required.

 

1.  Normal location-The unit is designed to fit over an 

existing roof vent opening.

 

2.   Other locations - When no roof vent is available or 

another location is desired, the following is recom-

mended:

  

 

a.  For one unit installation: The unit should be 

mounted  slightly  forward  of  center  (front  to 

back) and centered from side to side.

 

 

b.  For two unit installations: Install one unit 1/3 

and one unit 2/3’s from front of Caravan and 

centered from side to side.

1/2L

L

L

1/3L

2/3L

FIG. 1

It is preferred that the unit be installed on a relatively 

flat 

and level

 roof section measured with the Caravan parked 

on a level surface, but up to a 8° tilt is acceptable.

 

3.  After location has been selected:

 

 

a.  Check for obstructions in the area where unit 

will be installed. See FIG. 2.

Improper installation may damage equipment, 

could endanger life, cause serious injury and/

or property damage.

 

1.  Read Installation and Operating Instructions care-

fully  before  attempting  to  start  this  unit  installa-

tion.

 

2.  The manufacturer will not be liable for any dam-

ages or injury incurred due to failure in following 

these instructions.

 

3.  The equipment shall be installed in accordance

with national wiring regulation per 

IEC 335-2-40, CI, 

7.12.1

. Installation must comply with all applicable 

codes and/or regulations.

 

4. 

DO NOT

 add any devices or accessories to this 

unit except those specifically authorized in writing 

by Dometic, LLC.

 

5.  This  equipment  must  be  serviced  by  qualified

personnel and some localities require these people 

to be licensed.

* The manufacturer gives 

GENERAL

 guidelines for genera-

tor requirements. These guidelines come from experiences 

people have had in actual applications. When sizing the 

generator, the total power usage of your  Caravan must be 

considered. Keep in mind generators lose power at high 

altitudes and from lack of maintenance.

 

Specifications

Type

3241

3242

A/C OR H/P

A/C

H/P

Nominal Cooling

Capacity (KW)

3.0

3.0

Electric Heat

Capacity (KW)

1.6

N/A

Electrical Rating

220 - 240 VAC 50 Hz., 1 Ph

Full Load Amps

(Compressor / Motor)

5.46 / .92

5.46 / .92

Locked Rotor Amps

(Comp / Motor)

27 / 2.3

27 / 2.3

Power (KW)

Comp Motor

1.34

1.33

Power (KW)

Heater

1.5

N/A

Refrigerant R410A

Grams / Oz.

525 / 18.5

695 / 24.5

Minimum Wire Size

Up to 8 meters use 1.5 mm

2

, Copper.

Consult Regulatory Codes.

Circuit Protection

10 Amp Time Delay Fuse,

or Circuit Breaker

* Generator Size

1 Unit - 3.5 KW

2 Unit - 5.0 KW

 FIG. 2

241 mm

737 mm

1016 mm

Dimensions Are  Nominal

Keep These Areas

Free Of Obstructions

305 mm

102 mm

102 mm

Dimensions Are  Nominal

362 mm x 362 mm

(± 3 mm) Opening

Front

Summary of Contents for 3241.301

Page 1: ...THIS UNIT INFORMATION FOR FUTURE REFERENCE Type Number Product Number Serial Number ADB Number ADB Serial Number Date Purchased This manual must be read and understood before installation adjustment s...

Page 2: ...p 3 Powerwhentheunitstartsmustbeabove198VAC and the frequency must be 50 Hz at all times D The ability of the air conditioner to maintain the de sired inside temperature depends on the heat gain of th...

Page 3: ...is unit installa tion 2 The manufacturer will not be liable for any dam ages or injury incurred due to failure in following these instructions 3 The equipment shall be installed in accordance withnati...

Page 4: ...ay create a shock hazard causing death or severe personal injury FIG 3 Dimensions Are Nominal Dimensions Are Nominal 70 mm overall depth 635 mm 508 mm Front 76 mm 125 mm 130 mm 76 mm 362 mm x 362 mm 3...

Page 5: ...placed with type Y attachments if done by qualified personal Thisunitweighsapproximately45Kilograms Topreventbackinjury useamechanicalhoist to place unit on roof Do not slide the unit This may damage...

Page 6: ...pter tabs into the ceiling template See FIG 11 3 Pin Heater Connector If Electric Heat Installed FIG 9 9 Pin Connector Control Box Return Air Opening Discharge Opening Remove Liner From Foam Tape Fron...

Page 7: ...End Of ADB To Ceiling Push Here To Engage Latches Then Remove Labels Auxiliary Screw Locations Auxiliary Screw Locations FIG 15 Install 2 Primary Mount Screw First Strain Relief b Tighten the strain r...

Page 8: ...2 3 minutes before turning on the unit This allows the refrigerant pressures in the unit system to equalize so the com pressor may restart B Cooling Operation Blue Graphic 1 Setthethermostatatthedesi...

Page 9: ...ed heat output and could fully stop fan rotation in extreme condi tions To avoid this the system controls turn off the compressor if out door temperature drops below 5 6 C and returns heating when the...

Page 10: ...10 ROOF MOUNT ASSEMBLY Rear Air Conditioner Heat Pump AC HP Discharge Duct Ceiling Template With Metal Brackets Mounting Bolts Air Distribution Box ADB Roof Opening FIG 19 Duct Adapter Vents Filter s...

Page 11: ...51 5 75 7 127 21 620 02 6 211 725 72 21752 6 02725 20 7 8 67 57 51 75 51 51 6 5 2 7 8 7 3 66 2035 6625 7 31 37 5 203 20 50 3 1 3 1 5 3 7 31 7 7 5 7 51 5 67 57 66 67 127 21 620 02 6 127 21 620 02 6 5 1...

Page 12: ...2 6 67 57 3 353 3 66 75 7 5 25 353 20 50 203 3 31 37 5 25 7 353 1 1 211 725 1 7 31 51 7 7 1 3 6 5 2 2035 6625 5 9 56 1 9 9 7 8 31 8 0 17 7 7 67 7 51 51 8 5 20 51 7 02725 9a 86 233 5 21 8 7256 21 5 1 7...

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