Dometic 3254.331 Installation & Operating Instructions Manual
Type 3254.331 Heat Pump With Mechanical Controls Installation And Operating Instructions
RECORD THIS UNIT INFORMATION FOR FUTURE
REFERENCE:
Model Number
Serial Number
Date Purchased
MODEL B3200
Roof-T op Heat Pump
used with
Mechanical Air Distribution Box
SERVICE OFFICE
Dometic Corporation
For Information
Contact:
www.dometic.com
This manual must be read and understood before installation, adjustment, service, or maintenance
is performed. This unit must be installed by a qualified service technician. Modification of this product
can be extremely hazardous and
could result in personal injury or
property damage.
INST ALLA TION & OPERA TING
INSTRUCTIONS
Important: These Instructions
Form No. 3310129.000 1/06
©2006 Dometic Corporation
LaGrange, IN 46761
must stay with unit.
Owner read carefully.
Model
3254.331
1
Type 3254.331 Heat Pump With Mechanical Controls Installation And Operating Instructions
SAFETY INSTRUCTIONS
This manual has safety information and instructions to help users eliminate or reduce the risk of
accidents and injuries.
RECOGNIZE SAFETY INFORMATION
!
This is the safety-alert symbol. When you see this
symbol in this manual, be alert to the potential for
personal injury .
Follow recommended precautions and safe operating instructions.
UNDERSTAND SIGNAL WORDS
GENERAL INFORMATION
A. Product features or specifications as described or illus-
trated are subject to change without notice.
B. This Air Conditioner Is Designed For:
1. Installation on a Caravan during the time the vehicle is manufactured.
2. Mounting on the roof of a Caravan.
3. Roof construction with rafters/joists on minimum of
40.5 cm centers.
4. Minimum of 5 cm and maximum of 10 cm distance
between roof to ceiling of Caravan. Alternate installation methods will allow for roofs more than 10 cm
thick.
C. The ability of the air conditioner to maintain the desired
inside temperature depends on the heat gain of the
Caravan.
Some preventative measures taken by the occupants of
the Caravan can reduce the heat gain and improve the
performance of the air conditioner. During extremely
high outdoor temperatures, the heat gain of the vehicle
may be reduced by:
1. Parking the Caravan in a shaded area
2. Using window shades (blinds and/or curtains)
3. Keeping windows and doors shut or minimizing
usage
4. Avoiding the use of heat producing appliances
A signal word , WARNING OR CAUTION is used
with the safety-alert symbol. They give the level of
risk for potential injury .
WARNING
!
indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury .
CAUTION
!
indicates a potentially hazardous situation which, if not avoided may result in
minor or moderate injury .
CAUTION
used without the safety alert
symbol indicates, a potentially hazardous situation which, if not avoided may result in property
damage.
Read and follow all safety information and instructions.
Operation on High Fan/Cooling mode will give optimum or
maximum efficiency in high humidity or high outside temperatures.
Starting the air conditioner early in the morning and giving it
a "head start" on the expected high outdoor ambient will
greatly improve its ability to maintain the desired indoor
temperature.
For a more permanent solution to high heat gain, accessories like Dometic A&E outdoor patio and window awnings will
reduce heat gain by removing the direct sun. They also add
a nice area to enjoy company during the cool of the evening.
D. Condensation
Note: The manufacturer of this air conditioner will not be
responsible for damage caused by condensed moisture on
ceilings or other surfaces. Air contains moisture and this
moisture tends to condense on cold surfaces. When air
enters the Caravan, condensed moisture may appear on the
ceiling, windows, metal parts, etc. The air conditioner removes this moisture from the air during normal operation.
Keeping doors and windows closed when this air conditioner
is in operation will minimize condensed moisture on cold
surfaces.
2
Type 3254.331 Heat Pump With Mechanical Controls Installation And Operating Instructions
SPECIFICATIONS
Type 3254.331
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
The Manufacturer gives only general guidelines for Generator
requirements. These Generator requirements come from
experiences consumers have with our equipment in field
applications. When sizing Generators, the total electrical
power consumption of the caravan must be considered. Keep
in mind that Generators lose power because of altitude
increase above sea level, high outside temperatures and lack
of maintenance.
Heat Pump
INSTALLATION INSTRUCTIONS
A. Precautions
WARNING
!
B. Choosing Proper Location For The Air
Conditioner
This air conditioner 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 air conditioner is designed to
fit over an existing roof vent opening. See FIG. 1.
FIG. 1
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 air conditioner
should be mounted slightly forward of center
(front to back) and centered from side to side.
See FIG. 2.
Improper installation may damage equipment,
could endanger life, cause serious injury and/
or property damage.
1. Read Installation and Operating Instructions carefully before attempting to start your air conditioner
installation.
2. Dometic Corporation will not be liable for any damages or injury incurred due to failure in following
these instructions.
3. Installation must comply with All National Electrical
Codes or Local Codes or regulations.
4. DO NOT add any devices or accessories to this air
conditioner except those specifically authorized by
Dometic.
5. This equipment must be serviced by qualified personnel and some localities require these people to
be licensed.
FIG. 2
1/2L
L
b. For two unit installations: Install one Air Condi-
tioner 1/3 and one Air Conditioner 2/3’s from
front of Caravan and centered from side to side.
See FIG. 2.
2/3L
L
1/3L
3
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