4
Improper installation may damage equipment,
could endanger life, cause serious injury and/
or property damage.
WARNING
!
INSTALLATION INSTRUCITONS
A. Precautions
1.
Read Installation and Operating instructions care-
fully before attempting to start your air conditioner
installation.
2.
Dometic Corporation will not be liable for any dam-
ages or injury incurred due to failure in following
these instructions.
3.
Installation must comply with the National Electri-
cal Code ANSI/NFPA-70 and CSA Standard C22.1
(latest edition) and any State 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 per-
sonnel and some states require these people to be
licensed.
B. Choosing Proper Location For The Air
Conditioner
This air conditioner is specifically designed for installation on
the roof of a recreational vehicle (RV). When determining
your cooling requirments, the following should be consid-
ered:
•
Size of RV;
•
Window area (increases heat gain);
•
Amount of insulation in walls and roof;
•
Geographical location where the RV will be used;
•
Personal comfort level required.
1.
Normal Location-The air conditioner is designed to
fit over an existing roof vent opening. When the vent
is removed, it normally creates a 14-1/4" X 14-1/4"
(±1/8") 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 air conditioner
should be mounted slightly forward of center
(front to back) and centered from side to side.
b.
For two unit installations: Install one Air Condi-
tioner 1/3 and one Air Conditioner 2/3’s from
front of RV and centered from side to side.
FIG. 1
Roof Vent
Opening
FIG. 2
L
1/2 L
L
2/3 L
1/3 L
It is the responsibility of the installer of this
air conditioner system to ensure structural in-
tegrity of the RV roof. Never create a low spot
on the roof where water will collect. Water
standing around the air conditioner may leak
into the interior causing damage to the prod-
uct and the RV.
CAUTION
It is preferred that the air conditioner be installed in a relatively
flat and level roof section measured with the RV parked on
a level surface.
Note: A 8° slant to either side, or front to back, is acceptable
for 620615, 620625 & 620626 series.
3. After Location Has Been Selected:
a.
Check for obstructions in the area where air
conditioner will be installed. See FIG. 3 & 4.
b.
The roof must be designed to support 130
pounds when the RV is in motion. Normally a
200 lb. static load design will meet this require-
ment.
c.
Check inside the RV for return air cover obstruc-
tions (i.e. door openings, room dividers, cur-
tains, ceiling fixtures, etc.) See FIG. 3 & 4.
FIG. 3
9-1/2"
28-3/4"
39"
Micro-Therm Filter System
Micro-Therm Filter System
FILTER
RESET
FILTER
RESET
CLEAN
FILTER
CLEAN
FILTER
3/4"
17"
17"
2"
20-7/8"
18-1/2"
620615, 620625 & 620626 Installation & Operating Instructions
