Dometic 620615.321, 620615.326, 620625.321, 620625.326, 620626.321 Installation & Operating Instructions Manual

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Page 1
C
S
AVERTISSEMENT
USA
SERVICE OFFICE Dometic Corporation 509 South Poplar Street LaGrange, IN 46761 260-463-4858
CANADA
Dometic Distribution 866 Langs Drive Cambridge, Ontario CANADA N3H 2N7 (519) 653-4390
For Service Center Assistance Call:
800-544-4881
RECORD THIS UNIT INFORMATION FOR FUTURE REFERENCE: Model Number Serial Number Date Purchased
MODELS
620615, 620625, 620626 Series
Roof Top Air Conditioner
Used With
3105007 Return Air Kit
3105935 Quick Cool Return Air Kit
3308120 Genesis Air Filtration System Return Air Kit
This Unit Is Designed For OEM Installation. All Initial
Installations Must Be Approved By Dometic Corporation
AVERTISSEMENT
WARNING
!
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.
Lire et comprendre ce manuel avant de procéder à l'installation, à des réglages, de l'entretien ou des réparations. L'installation de cet appareil doit être effectuée par un réparateur qualifié. Toute modification de cet appareil peut être extrêmement dangereuse et entraîner des blessures ou dommages matériels.
!
U
INSTALLATION & OPERATING
INSTRUCTIONS
REVISION
Form No.3308472.012 1/04 (Replaces 3308472.004) (French 3308473.010) ©2004 Dometic Corporation LaGrange, IN 46761
Important: These Instructions
must stay with unit. Owner read carefully.
1
MODELS
620615.321
620615.326
620625.321
620625.326
620626.321
620626.326
Page 2
620615, 620625 & 620626 Installation & 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 recreational vehicle during the time the vehicle is manufactured.
2. Mounting on the roof of a recreational vehicle.
3. Connection to an air distribution system located in the ceiling/roof cavity of the recreational vehicle.
4. Roof construction with rafters/joists on minimum of 16 inch centers.
5. Minimum of 2.00" and maximum of 5.50" distance between roof to ceiling of recreational vehicle. Alter­nate installation methods will allow for roofs more than 5.50" thick.
C. The ability of the air conditioner to maintain the desired
inside temperature depends on the heat gain of the RV. Some preventative measures taken by the occupants of the RV 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 RV 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 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 RV, 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.
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620615, 620625 & 620626 Installation & Operating Instructions
SPECIFICATIONS
Cooling Amps Amps W.C. Supplied 1Unit/2Units
(BTU/HR) Amps Rotor Amps Rotor Max/Min Max/Min ***User (Pounds) Size**
Model Nominal Electrical Compressor Compressor Fan Motor Fan Motor SCFM-High Total Refrigerant Minimum AC Circuit Installed Minimum
No. Capacity Rating Rated Load Locked Rated Load Locked Speed Static R-22 (Oz.) Wire Size* Prote c ti o n Weight Generator
620615.321 13,500 115 VAC, 12.4 60.0 3.1 8.8 335 /250 0.12 / 0.65 15.5 12AWG 20 Amp 100 3.5 KW / 5.0 KW
620615.326 13,500 60 Hz., 1 PH 12.4 60.0 3.1 8.8 335 / 250 0.12 / 0.65 15.5 Copper 20 Amp 10 0 3.5 KW / 5.0 KW
620625.321 13,500 12.4 60.0 3.1 8.8 335 / 250 0.12 / 0.65 15.5 Up To 24' 20 Amp 100 3.5 KW / 5.0 KW
620625.326 13,500 12.4 60.0 3.1 8.8 335 / 250 0.12 / 0.65 15.5 20 Amp 100 3.5 KW / 5.0 KW
620626.321 15,000 12.0 64.0 3.3 8.5 380 / 250 0.12 / 0.65 21.5 20 Amp 100 3.5 KW / 5.0 KW
620626.326 15,000 12.0 64.0 3.3 8.5 380 / 250 0.12 / 0.65 21.5 20 Amp 100 3.5 KW / 5.0 KW
When sizing the generator, the total power usage of your recreational vehicle must be considered. Keep in mind generators lose power at high altitudes
an dfrom lack of maintenance.
* For wire length over 24 ft., consult the National Electric Code for proper sizing.
** Dometic Corporation gives GENERAL guidelines for generator requirements. These guidelines come from experiences people have had in actual applications.
*** CIRCUIT PROTECTION: Time Delay Fuse or HACR Circuit Breakers Required.
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620615, 620625 & 620626 Installation & Operating Instructions
INSTALLATION INSTRUCITONS
A. Precautions
WARNING
!
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 the National Electri­cal 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 per­sonnel 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 consid­ered:
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.
FIG. 2
L
1/2 L
2/3 L
L
1/3 L
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
poundswhen the RV is in motion. Normally a 200 lb. static load design will meet this require­ment.
CAUTION
It is the responsibility of the installer of this air conditioner system to ensure structural in­tegrity 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 prod­uct and the RV.
c. Check inside the RV for return air cover obstruc-
tions (i.e. door openings, room dividers, cur­tains, ceiling fixtures, etc.) See FIG. 3 & 4.
FIG. 3
9-1/2"
FIG. 1
Roof Vent Opening
2. Other Locations-When no roof vent is available or another location is desired, the following is recom­mended: 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.
28-3/4"
39"
3/4"
2"
17"
17"
20-7/8"
18-1/2"
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FIG. 4
AIR CONDITIONER DIMENSIONS (On Top Of Vehicle)
Air Grill Perimeter
620615, 620625 & 620626 Installation & Operating Instructions
2. Roof Vent Removal a. Unscrew and remove the roof vent. b. Remove all caulking compound around open-
ing.
FIG. 5
1-1/2"
17"
1-1/4"
1-1/2"
17"
1-3/4"
14-1/4 x 14-1/4 (±1/8")
3"
2"
3"
2"
20-7/8"
Genesis
Opening
C. Roof Preparation
1. Opening Requirments - Before preparing the ceiling opening, the type of system options must be de­cided upon. If a furnace is to be connected, wires must be run from the furnace to the Dometic A/C. Read all of the following instructions before begin­ning the installation. If a roof roof vent opening will not be used a 14-1/4" x 14-1/4" (±1/8") opening must be cut through the roof and ceiling of the RV. This opening must be located between the roof reinforcing members.
18-1/2"
c. Seal all screw holes and seams where the roof
gasket is located. Use a good grade of all weather sealant.
d. If the opening exceeds 14-3/8" x 14-3/8", it will
be necessary to install spacers.
e. If the opening is less than 14-1/8" x 14-1/8", it
must be enlarged.
3. New Opening-(Installation Other Than Vent Open­ing) a. Mark a 14-1/4" x 14-1/4" (±1/8") square on the
roof and carefully cut the opening.
b. Using the roof opening as a guide, cut the
matching hole in the ceiling.
d. The opening created must be framed to provide
adequate support and prevent air from being drawn from the roof cavity. Lumber 3/4" or more in thickness must be used. Remember to pro­vide an entrance hole for power supplies, fur­nace wiring and a four-conductor control cable.
FIG. 6
There may be electrical wiring between the roof and the ceiling. Disconnect 115 volt AC power cord and the positive (+) 12 volt DC ter­minal at the supply battery. Failure to follow this instruction may create a shock hazard causing death or severe personal injury.
The 14-1/4" x 14-1/4" (±1/8") opening is part of the return air system of the Air Conditioner and must be finished in accordance with NFPA Standard 501C Section 2.7.2.
Do Not Cut Roof Strucure Or Rafters
Leave Access For Power Supply Wiring
5
Good-Rafters Supported By Cross Beams
3/4" Min.
Good Location­Between Roof Rafters
Frame Opening So It Won't Collapse When Bolting Down
15" min.
Page 6
CAUTION
It is the responsibility of the installer of this air conditioner system to ensure structural in­tegrity 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 prod­uct and the RV.
4. Air Distribution System Sizing & Design (See Chart On Page 15)
CAUTION
It is the responsibility of the installer to insure the duct-work will not collapse or bend dur­ing and after the installation. Dometic Corpo­ration will not be liable for roof structural or ceiling damage due to improperly insulated, sealed or collapsed duct-work.
The Installer of this air conditioner system must design the air distribution system for this particular application. Several requirements for this system MUST be met for the air conditioner to operate properly. These require­ments are as follows:
FIG. 7
FRAME
INSULATION
DUCT
LOW VOLTAGE WIRES:
12VDC Furnace Load Shed Sensors
ROOF
(TOWARD BACK OF RV)
DUCT
a. The duct material must meet or exceed any
agency or RVIA Standard that may be in exist­ence at the time the RV is produced.
b. All discharge air ducts must be properly insu-
lated to prevent condensation from forming on their surfaces or adjacent surfaces during op­eration of the air conditioner. This insulation must be R-7 minimum.
c. Ducts and their joints must be sealed to prevent
condensation from forming on adjacent sur­faces during operation of the air conditioner.
d. Return air openings must have 40 square inches
minimum free area including the filter.
TOP VIEW
(BACK OF RV)
FRAME
14-1/4" (±1/8”)
OPENING
AC POWER SUPPLY WIRE
FRAME
CCC, CONTROL CABLE(S) or 7-Wire Analog Cable
SIDE VIEW
14-1/4" (±1/8”)
OPENING
CEILING
DUCT
DUCT
INSULATION
620615, 620625 & 620626 Installation & Operating Instructions
e. Return air to the air conditioner must be filtered
to prevent dirt accumulation on air conditioner cooling surface.
5. Air Distribution System Installation a. Dometic Corporation recommends the basic
configuration shown on page 16, for installing this air conditioner system. We have found by testing, that this configuration works best in most applications of this air conditioner sys­tem. It is the responsibility of the Installer of this system to review each RV floor plan and deter­mine the following:
Duct size
Duct layout
Register size
Register location
Receiver location
These items must be determined in conjunction with the Air Distribution System and Sizing and Design Require­ments listed in the chart on page15. Terminate the start of the duct at the back edge of the 14-1/4" x 14-1/4" (±1/ 8" opening)
Important: Alternate configurations and methods
may be used which still allow the air conditioner to operate properly; however, these alternate configura­tions and methods must be approved by the Dometic Corporation in writing. The following instructions are based upon the use of Dometic Return Air Kits
3105007.XXX, 3105935.XXX, or 3308120.XXX Genesis Air Filtration System. The 3107180.006 Bolt/Cover Kit has the mounting bolts and cover for the AC junction box for use with these kits.
D. Wiring Requirements
1. Route a copper 12 AWG, with ground, 115 VAC supply line from the fuse or circuit breaker box to the roof opening.
a. This supply line must be located in the front
portion of the 14-1/4" x 14-1/4" (±1/8") opening.
b. The power MUST be on a separate 20 Amp time
delay or HACR circuit breaker.
c. Make sure that at least 15" of supply wire
extends into the roof opening. This ensures easy connection at the junction box.
d. Wiring must comply with all National, State and
Local Wiring Codes.
e. Use a steel sleeve and a grommet or equivalent
methods to protect the wire where it passes into the opening.
2. Route a dedicated 12 VDC supply line (18 -22 AWG) from the RV's converter or battery to the roof open­ing. a. This supply line must be located in the front
portion of the 14-1/4" x 14-1/4" (±1/8") opening.
b. Make sure that at least 15" of supply wire
extends into the roof opening.
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FurnaceFurnace
TimerTimer
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Unit On
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FurnaceFurnace
TimerTimer
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H e a t
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620615, 620625 & 620626 Installation & Operating Instructions
3. If system includes a gas furnace, route two 18 gauge thermostat wires from the furnace to the 14-1/4" x 14-1/4" (±1/8") roof opening of the air conditioner that will control it. Make sure that at least 15" of the wire extends into the roof opening. If more than one furnace is to be used, route the second set of thermostat wire to the second air conditioner.
4. Route a 4-conductor control cable from the Re- ceiver mounting position into the 14-1/4" x 14-1/4" (±1/8") roof opening. Make sure that at least 15" of the wire extends into the roof opening and 6" extend from the wall at the mounting position of the Re-
ceiver . See Section E-2.
E. Receiver & Cable Installation
Note: The receiver monitors the temperature of the living
area. The following receiver location is recommended to maintain the selected temperature setting. Any other loca­tion must be approved by Dometic. See FIG.30.
1. Locate the receiver in a front to rear position on the ceiling, and to one side or the other of the return air cover. See FIG. 8A, 8B & 8C. Mounting the receiver from side to side is not recommended, but could be mounted this way as a last possibility.
Note: When used with the 3308120 Genesis Filtration System, do not mount the receiver where it will interfere with the filter removal. See FIG. 8A. When used with the 3105935 Quick Cool Return Air Grille do not install near the discharge air duct. See FIG. 8C. Note: To operate the air conditioner, the receiver must be installed in a location that will allow the remote to be in the line of sight of the receiver.
a. If another receiver mounting location is antici-
pated, observe the following general rules in determining the location and submit location to Dometic for approval.
Locate the Receiver 54" above the floor.
NEVER expose it to direct heat from lamps,
sun or other heat producing items.
Avoid locations close to doors that lead
outside, windows or adjoining outside walls or directly under cabinets or overhangs which limit air movement.
Avoid locations close to supply registers
and the air from them.
NEVER locate receiver in a room that is
warmer or cooler than the rest of the RV.
The major living area is normally a good
location.
2. Control Cable Installation A 4-conductor control cable must be routed from the roof opening to the Receiver
a. Choose the shortest, most direct route from the
14-1/4" x 14-1/4" (±1/8") opening to the Re-
ceiver location selected. Leave 6" of cable
extending through the wall. See Section D-4.
b. The control cable that should be used is a flat,
4-conductor telephone cable.
.
FIG. 8A
3308120 Genesis Filtration System
Do Not Mount Receiver Here, It Will Block Filter Removal
Front
Receiver May Be Mounted Here
FIG. 8B
3105007 Return Air Grille
Receiver May Be Mounted Here
Receiver May Be Mounted Here
FIG. 8C
3105935 Return Air Grille
Receiver May Be Mounted Here
Do Not Mount Receiver Here
Receiver May Be Mounted Here
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CAUTION
c. The control cable must be terminated with two
(2) RJ-11 telephone connectors. Refer to the crimp tool manufacture for crimping instruc­tions.
Important: RJ-11 connectors must be installed as
shown in FIG. 9A & 9C.
FIG. 9A
FIG. 9B
620615, 620625 & 620626 Installation & Operating Instructions
Do not slide the unit. This may damage the neoprene gasket attached to the bottom and may create a leaky installation.
FIG. 11
FRONT
FIG. 9C
Pin 1
RJ-11 Connector
Flat Four Conductor Cable
F. Placing The Air Conditioner On The Roof.
1. Remove the air conditioner from the carton and discard carton.
2. Place the air conditioner on the roof.
FIG. 10
4. Place the return air kit inside the RV. This box contains mounting hardware for the air conditioner and will be used inside the RV.
This completes the outside work, Minor adjustments can be done from inside of the RV if required.
G . Inst alling Air Conditioner
Installing unit with 3105007.XXX or 3105935.XXX
Return Air Cover. For unit with Genesis Air Filtra­tion System see page 10.
1. Installation Of Ceiling T emplate a. Check gasket alignment of the air conditioner
over the roof opening and adjust if necessary . Unit may be moved from below by slightly lift­ing. See FIG. 12.
FIG. 12
Center Unit From Below
This unit weighs approximately 100 pounds. To prevent back injury, use a mechanical hoist to place Air Conditioner on roof.
3. Lift and place the unit over the prepared opening using the gasket on the unit as a guide.
Roof Gasket
b. Remove return air cover and ceiling template
from the 3105007.XXX or 3105935.XXX kit car­ton.
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CAUTION
620615, 620625 & 620626 Installation & Operating Instructions
FIG. 13
Ceiling Template
Return Air Grill
c. Locate the four 8" x 1/4" x 20 unit mounting
bolts, junction box cover and Romex connec­tor in the 3107180.006 bolt kit.
d. Reach up into the return air opening and pull
the unit electrical cord down. Mount the junc­tion box with screws to the framing in front of the 14-1/4" x 14-1/4" (±1/8") opening . See FIG .
15.
FIG. 14
Furnace T stat Con­nection From A/C
DC Power Supply
Furnace
Center Unit From Below
Divider Plate
AC Power Supply
Roof Gasket
Pull Electrical Cord Down
Return Air Cover
Receiver Leads
EVENLY tighten the bolts to a torque of
40 to 50 inch pounds. This will compress the roof gasket to approximately 1/2". The bolts are self locking so over tight­ening is not necessary. See FIG. 16.
If bolts are left loose there may not be ad­equate roof seal or if over tightened, damage may occur to the air conditioner base or ceil­ing template. Tighten to specifications listed in this manual.
FIG. 16
Screws
Finger Tight
2. Installation Of Divider Plate a Measure the ceiling to roof thickness:
Front of Vehicle
Roof Gasket
Tighten to compress gasket to 1/2"
If distance is 2.0” - 3-3/4”, remove perfo-
rated tab from divider plate.
If distance is 3-3/4” - 5-1/2”, remove no tabs.
b. Remove the backing paper from double sided
tape located on ceiling template. See FIG. 17.
FIG. 17
FIG. 15
Fasten Junction Box To Front Of Opening
e. Install the Romex connector in the junction box. f. Hold the ceiling template up to the 14-1/4" x
14-1/4" (±1/8") opening. Be sure the large plate faces the rear of the RV .
S tart each mounting bolt through the ceil-
ing template and up into the unit base pan by hand. Install wood screw in each end of the ceiling template. This insures a tight fit of the return air cover to ceiling. See FIG.
16.
c. Place divider plate up to bottom of air condi-
tioner base pan firmly. The foam tape on the divider plate must seal to bottom of base pan. See FIG. 18.
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Micro-Therm
Filter
System
FILTER RESET
CLEAN FILTER
620615, 620625 & 620626 Installation & Operating Instructions
CAUTION
Improper installation and sealing of divider plate will cause the compressor to quick cycle on the cold control. This may result in fuse or circuit breaker opening and/or lack of cool­ing.
FIG. 18
Note: The adhesive on the insulation is extremely sticky.
Be sure the part is located where desired before pressing into place.
d. With slight pressure then push the divider plate
against the double sided tape on the ceiling template.
e. Locate the 1/8" x 7" x 18" self -adhesive insula-
tion supplied with the return air kit. Remove the backing paper from the insulation and carefully stick onto the ceiling template divider panel.
See FIG . 19.
FIG. 19
Excess width is intended to seal the di-
vider plate to the sides of the 14-1/4" x 14­1/4" (±1/8") opening. This is to help pre­vent cold air discharge from circulating into the air conditioner return air opening.
If the insulation is too high, stick excess
height of insulation to the air conditioner base pan. Do not cover up unit rating plate.
Installing unit with 3308120.XXX Genesis Air Fil-
tration System Return Air Kit. For unit with
3105007.XXX or 3105935.XXX Return Air Kit, see page 8.
FIG. 20
Foam Divider
Ceiling Template
Slider
Filter
Return Air Cover
Grill
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1. All Non-Center Duct Installations Note: The Genesis Air Filtration System can be installed on the units that use a center discharge duct through the 14-1/ 4" x 14-1/4" (±1/8") opening. Installing units with the center discharge duct go to page 11 "Section 2" Center Duct In­stallation.
a. Check gasket alignment of the air conditioner
over the roof opening and adjust if necessary . Unit may be moved from below by slightly lift­ing. See FIG. 12.
Remove return air cover, ceiling template,
foam divider and air filter from the 3308120 carton.
Locate the four 8" x 1/4" x 20 unit mount-
ing bolts, junction box cover and Romex connector in the 3107180.006 bolt kit.
Pull down the unit's electrical cord and fas-
ten the junction box with screws to the fram­ing in the front of the 14-1/4" x 14-1/4" (±1/ 8") opening. See FIG. 14 & 15.
Install the Romex connector in the junc-
tion box.
b. Installing Foam Divider
Locate the foam divider and insert it corner
to corner in the 14-1/4" x 14-1/4" (±1/8") opening with the adhesive tape up. (Do not remove paper to expose adhesive). The foam divider should be level with the ceiling (±1/4"). T ear off the excess at the pre-cut perforations in divider . See FIG . 21.
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620615, 620625 & 620626 Installation & Operating Instructions
FIG. 21
Base Pan
Upside Down Foam Divider
Place Foam Divider in (14-1/4" x 14-1/4" (±1/8") Ceiling Opening against Base Pan Bottom
c. Install Ceiling T emplate
Do Not Peel Tape Off Adhesive
Ceiling
Foam Divider Ceiling Level (±1/4") T ear Off Excess
Peel the paper off of the foam divider and
stick it in place on the center of the rear flange of the return air opening on the ceil­ing template. See FIG . 22.
FIG. 22
Adhesive
Peel Off Paper - Center Divider - Stick To Rear Flange On Ceiling Template
Foam Divider
Start each mounting bolt through the ceil-
ing template and up into the unit base pan by hand.
EVENLY tighten the bolts to a torque of
40 to 50 inch pounds. This will com­press the roof gasket to approximately 1/2". The bolts are self locking so over tightening is not necessary. See FIG.
16.
CAUTION
If bolts are left loose there may not be ad­equate roof seal or if over tightened, damage may ocur to the air conditioner base or ceiling template. Tighten to specifications listed in this manual.
d. Use Aluminum foil tape (not supplied) to seal
the ends of the foam divider to the sides of the opening. Make sure the area behind the flange
on the ceiling template is sealed. See FIG . 23.
FIG. 23
Route Wires Through Slot
Use Aluminum Foil Tape To Seal The Foam Divider To The Sides Of 14-1/4" x 14-1/4" (±1/8") Ceiling Opening
Catch Flange In Groove Of Return Air Cover
Make Sure To Seal Behind Flange
CAUTION
Improper installation and sealing of foam di­vider will cause the compressor to quick cycle on the cold control. This may result in fuse or circuit breaker opening and/or lack of cool­ing.
2. Center Discharge Duct Application Installation Note: If using non-center duct installation, refer to all Non­Center Duct Installations Section 1on page 10. Important: A duct adapter (not supplied) must be installed between the unit discharge and the customer installed cen­ter duct. This duct adapter must be approved by Dometic.
a. Check gasket alignment of the air conditioner
over the roof opening and adjust if necessary . Unit may be moved from below by slightly lift­ing. See FIG. 12.
Remove return air cover, ceiling template,
foam divider and air filter from the 3308120 carton.
Locate the four 8" x 1/4 x 20 unit mounting
bolts, junction box cover and Romex con­nector in the 3107180.006 bolt kit.
Pull down the unit's electrical cord and fas-
ten the junction box with screws to the fram­ing in the front of the 14-1/4" x 14-1/4" (±1/ 8") opening. See FIG . 14 & 15.
Install the Romex connector in the junc-
tion box.
b. Installing Foam Divider
Cut notch in the center section of the foam
divider to fit (approximately 2 x 8 inches) snugly around duct. See FIG. 24.
FIG. 24
Foam Divider
Tape Covered Adhesive
Mark And Cut 2" x 8" Opening For Center Duct
11
Page 12
620615, 620625 & 620626 Installation & Operating Instructions
Place the foam divider in the return air open-
ing above the center duct before ceiling tem­plate.
c. Install Ceiling T emplate
Apply a piece of foam weather stripping (not
supplied) to the upper side of ceiling tem­plate to make a seal between it and the duct. Use a soft piece of foam weather strip 1 x 3/4 x 10 inches. See FIG. 25.
FIG. 25
Weather Strip
Stick Weather Strip To Top Of Ceiling Template
Ceiling Template
St art each mounting bolt through the ceil-
ing template and up into the unit base pan by hand.
EVENLY tighten the bolts to a torque of
40 to 50 inch pounds. This will com­press the roof gasket to approximately 1/2". The bolts are self locking so over tightening is not necessary. See FIG.
16.
CAUTION
If bolts are left loose there may not be ad­equate roof seal or if over tightened, damage may ocur to the air conditioner base or ceiling template. Tighten to specifications listed in this manual.
d. Use Aluminum foil tape (not supplied) to seal
the ends of the foam divider to the sides of the opening. Make sure the area behind the flange on the ceiling template is sealed. See FIG . 23.
CAUTION
Improper installation and sealing of foam di­vider will cause the compressor to quick cycle on the cold control. This may result in fuse or circuit breaker opening and/or lack of cool­ing.
H. Wiring The System
Reach up into the return air opening and pull the re-
maining wires down.
1. Connection Of Low Voltage Wires
CAUTION
Disconnect the positive (+) 12 volt DC termi­nal at the supply battery. Damage to equip­ment could occur if the 12 volt DC is not shut off.
FIG. 26
Furnace T stat Con­nection From A/C
DC Power Supply
Furnace
a. Connect the previously run 12 VDC to the red
b. Connect the previously run furnace thermostat
c. Connect the receiver flat four conductor control
d. Insert the receiver cable into the receiver and
Center Unit From Below
AC Power Supply
Roof Gasket
Receiver Leads
Pull Electrical Cord Down
an d black wires protruding from the units return air opening. Connect +12 VDC to the red wire; –12 VDC to the black wire. (Do not connect wires if using the 3308120.XXX Genesis Air Filtration System Return Air Kit.) See Section I Decorative Cover Installation (Installating unit with 3308120.XXX Genesis Filtration System Return Air Kit).
wires (if applicable) to the blue/white wires protruding from the units return air opening. The polarity of these connections does not matter.
cable previously terminated (see Section E-2. Control Cable) into one of the receiver leads out of the air conditioner. Either one of the two (2) receiver cables can be used.
mount it in the desired location. See FIG. 14.
e. Cut the opening in the center duct using the
discharge opening in the ceiling template for a pattern. Seal the center duct to the ceiling tem­plate using foil tape, foam insulation or silicon sealant.
12
Page 13
Unit
On
620615, 620625 & 620626 Installation & Operating Instructions
FIG. 27
Unit On
Receiver
Connect The RJ-11 Plug T o Receiver
Cool
Heat
Point T owards Rear Or Front Of Vehicle
Timer
Furnace
Mount With Two Screws
2. Connection Of 115 Volt Power Supply
Disconnect 1 15 volt AC. Failure to follow these instructions could create a shock hazard causing death or severe personal injury.
a. Route power supply line through Romex con-
nector into junction box on side away from the ceiling template. Tighten connector.
I . Decorative Cover Installation
Installing unit with 3105007.XXX or 3105935.XXX
Return Air Cover. For Genesis Air Filtration Sys­tem Return Air Kit See Page 14.
Note: On models equipped with a solar panel, see wiring
instructions for the solar panel before proceeding.
1. Remove the return air grill from the return air cover.
2. Place the return air cover up to the ceiling tem­plate.
3. Install cover to template with #8 x 3/8” blunt point Phillips head screws provided (6 required).
4. Reinstall filter return air grill into return air cover. Align tabs with mating notches and snap into place
5. Install two hole plugs into screw holes in back of return air cover. See FIG. 28.
FIG. 28
Hole Plugs
6. This completes the installation of the air conditioner. We recommend that power be supplied to the air conditioner and check for proper operation. Refer to Operating Manual or User's Guide for a description of the air conditioner operation.
Return Air Cover
Return Air Grill
This product is equipped with a 3-wire (grounded) system for protection against shock hazard. Make sure that the product is wired into a properly grounded 115 volt AC circuit and the polarity is correct. Failure to do so could result in death, personal injury or damage to the equipment.
b. Connect white to white; black to black; and
green to green or bare copper wire using appro­priate sized twist connectors.
c. Tape the twist wire connectors to the supply
wire to assure they don't vibrate off. d. Push the wires into the box. e. Install the cover onto the junction box.
13
Page 14
Micro-Therm
Filter
System
FILTER RESET
CLEAN FILTER
620615, 620625 & 620626 Installation & Operating Instructions
Installing unit with 3308120.XXX Genesis Air Filtra-
tion System Return Air Kit. For 3105007.XXX or
3105935.XXX Return Air Kit See Page 13.
Note: On models equipped with a solar panel, see wiring
instructions for the solar panel before proceeding.
FIG. 29
Foam Divider
Slider
Return Air Cover
r c i
Handle
M
1. Install the slider in the return air cover and raise it to the ceiling template. See FIG. 29.
2. Route the wires from the return air cover through the template slot leaving about 3" between, and position wire here so they can be reached after plastic cover is installed. See FIG. 23.
3. Place the front of the return air cover against the ceiling and slide towards the rear. The flange on the ceiling template will catch in the groove on the return cover. Adjust the position (right to left) and install the front two screws. Start and tighten the remaining screws to hold it in place.
4. Connect together the wires from the thermostat, control box and filter indicator. a. Connect the red wire from the air conditioner
and the red wire from the filter indicator light with the red positive 12VDC supply wire. See FIG . 23.
b. Connect the black wire from the air conditioner
and the black wire from the filter indicator light with the black negative 12VDC supply wire.
See FIG. 23. Note: Number 10 cabinet screw can be used to replace the two front screws to hold the plastic cover flush to the ceil­ing, if required.
5. Tighten the screws holding the return air cover. Slide the filter from the right side (looking toward the RV front) over the wires. Make sure the wires are se­cured above the filter and are out of its way .
6. Place grill on return air cover and snap in place. Decal is on end over circuit board.
7. Place slide handle through slots in grill into the slide posts. Handle will fit in either direction.
r
e t l i
F m r
e h T
­o
m
e t s
y S
R E T
L I F
T E S
E R
Ceiling Template
Filter
Grill
N A E
L C
R E T L
I F
8. This completes the installation of the air conditioner. We recommend that power be supplied to the air conditioner and check for proper operation. Refer to Operating Manual or User's Guide for a description of the air conditioner operation.
14
Page 15
620615, 620625 & 620626 Installation & Operating Instructions
AIR DISTRIBUTION
DUCT SIZING & DESIGN CHART
Return Air Cover Model 3105007.XXX 3308120.XXX
3105935.XXX Genesis Air Filtration System
Roof Cavity Depth 2.0 In. Min. - 5-1/2 In. Max. 2.0 In. Min. - 5-1/2 In. Max. Duct Cross Sectional Area 21.0 Sq. In. Min. 32.0 Sq. In. Min.
Duct Size
Depth 1-1/2 In. Min. - 2-1/2 In. Max. 2.0 In. Min. - 2-1/2 In. Max. Width 7.0 In. Min. - 10.0 In. Max. 8.0 In. Min. - 10.0 In. Max. T ot al Duct Length 15.0 Ft. Min. - 40.0 Ft. Max. 15.0 Ft. Min. - 40.0 Ft. Max. Duct Length (short run) 1/3 Total Duct Length 1/3 Total Duct Length
Center Duct System (Only)
Depth 2.0" In. Min. - 2.0" Max. Width 8.0 In. Min. - 8.0 In. Max. T ot al Duct Length 15.0 Ft Min. - 40 Ft. Max. Duct Length (Short Run) 1/3 T otal Length
Register Requirements
Number Required Per Run 4 Min. 4 Min. Register Free Air Area 14.0 Sq. In. 14.0 Sq. In. Distance From Duct End 5.0 In. Min. - 8.0 In. Max. 5.0 In. Min. - 8.0 In. Max. Distance From Elbow 15.0 In. 15.0 In.
Duct Static
Note: Duct sizes listed are inside dimensions.
FIG. 30
Receiver
Flat Four Conductor Wire
Blower at High Speed, Filter & Grill In Place 0.12 - 0.65 In. W.C. 0.12 - 0.65 In. W.C.
14-1/4" x 14-1/4" (±1/8") Opening
Air Conditioner
DC Power Supply 2 Wires
AC Power Supply Wires
AC Breaker Box
15
Furnace 2 Wires
Furnace
Page 16
620615, 620625 & 620626 Installation & Operating Instructions
FIG. 31
Duct Size And Requirements For 3105007.XXX And 3105935.XXX Return Air Cover
Register Required Short Duct Run Minimum
1/3 T ot al Duct Length
Total Outlet Air Area Minimum 21.0 Sq. In.
Ducts Min. Max. Depth 1-1/2” 2-1/2” Width 7.0” 10.0” Total Length 15.0’ 40.0’
Register Required
Note: Duct Size is Inside Dimensions
FIG. 32
Duct Size And Requirements For 33308120.XXX Genesis Air Filtration System Kit
Register Required Short Duct Run Minimum
1/3 Tot al Duct Length
Total Outlet Air Area Minimum 32.0 Sq. In.
Ducts Min. Max. Depth 2.0” 2-1/2” Width 8.0” 10.0” Total Length 15.0’ 40.0’
Roof Rafters
Register Required
Registers
8 Min.-- 12 Max. (Per Unit) 14 Sq. In Free Area Per Register
Register Required
14-1/4"x14-1/4" (±1/8")
Roof Opening
Register Required
Registers
8 Min.-- 12 Max. (Per Unit) 14 Sq. In Free Area Per Register
Register Required
Note: Duct Size Is Inside Dimensions
Roof Rafters
Register Required
14-1/4"x14-1/4" (±1/8")
Roof Opening
16
Page 17
OPERATING INSTRUCTIONS
A . General Instructions
1. The remote uses 2 “AAA” batteries. It is recom­mended that a spare set of batteries be available.
2. All communications between the remote and receiver are validated when you hear a tone or beep.
3. The orange button turns the unit “ON” and “OFF”.
4. All changes require the hand held remote to be pointed at the receiver.
5. When settings are changed, you must hear the tone or beep to indicate the new settings are updated.
6. One of the LED’s (GREEN, ORANGE or RED) will be illuminated on the receiver depending on the mode selected.
7. The receiver’s Green LED will blink to alert the op­erator to the following: One blink with one second interval, frost control active. Two blinks with one second interval, DC voltage high (18VDC and over). Three blinks with one second interval, DC voltage low (9.75 VDC or lower). Blink ON for 1/2 second, OFF 1/2 second - See step 8 Delay Timer , Paragraph a.
8. Delay Timer (Present in all Modes) a. The short-cycle delay is activated every time
the compressor turns “OFF”. The timer will delay the compressor from restart until the 150 second time has elapsed.
b. Delay on start cycle is activated when ever the
fan is tuned “ON”. A 15 second delay is started before the compressor or heat is turned “ON”.
c. Delay-on-off cycle is present when the com-
pressor or heat is turned “OFF”. The fan will continue to operate for 15 seconds.
9. Low Battery a. The low battery symbol will appear in the dis-
play window.
b. When the low battery condition exists, and the
remote sends a signal to the receiver, it may be possible for the control system to go to the default setting (Cool Mode with 74° F set point). If this condition occurs replace the batteries.
B. Cooling Operation
1. Push the “MODE” button until the cool symbol is displayed.
2. Select fan speed by pushing the “FAN” button until the desired fan speed is displayed. a. High Speed (continuous fan, compressor cycles
withthermostat )
620615, 620625 & 620626 Installation & Operating Instructions
c. Auto High Speed (fan & compressor cycle with
the thermostat)
AUTO
d. Auto Low Speed (fan & compressor cycle with
the thermostat)
AUTO
3. Set the desired temperature by pushing the “UP(+)” or “DOWN (-)” button.
4. The receiver will beep when each change is com-
pleted. The GREEN LED will light.
C. Furnace Operation (if equipped)
1. Push the “MODE” button until the furnace symbol is displayed.
2. Set the desired temperature by pushing the “UP(+)” or “DOWN (-)” button.
3. The receiver will beep when each change is com-
pleted. The RED LED will light.
D. Dry - Air Operation
1. Push the “MODE” button until the dry - air symbol is displayed.
2. Set the desired temperature by pushing the “UP(+)” or “DOWN(-)” button.
3. The receiver will beep when each change is com-
pleted. The GREEN LED will light. See TIMER OP-
Note: In this mode the receiver monitors the room tempera-
ture in relationship with the set point. If the temperature is 1 °F above the set point the compressor and low fan will cycle “ON” for 15 minutes and “OFF” for 3 minutes. If the room temperature drops below the set point the compressor and low fan will cycle “ON” for 6 minutes and “OFF” for 15 min- utes until the set point is reached.
ERA TION.
Operation Mode Display Window
Temperature Fan Mode
Display
Up(+)
Down(-)
REMOTE CONTROL
(w/door closed)
10:00
75°F
AUTO
+
-
MODE
Low Battery
Military Time
Room Temperature
Orange ON/OFF Button
Fan
Mode
b. Low Speed (continuous fan, compressor cycles
with thermostat)
17
Page 18
SLEEP
IFEEL
F°/C°
IFEEL
620615, 620625 & 620626 Installation & Operating Instructions
Furnace
Timer
Unit OnUnit
On
Cool
Heat
E. Auto Change Operation
1. Push the “MODE” button until the auto change sym­bol is displayed.
2. Set the desired temperature by pushing the “UP(+)” or “DOWN (-)” button.
3. The receiver will beep when each change is com- pleted. The GREEN LED will light. See TIMER OP­ERA TION.
Note: In the auto change mode the temperature will be main­tained in the vehicle without the need to select cool or heat. A furnace or heat strip must be present and operational before this feature can operate. If the installation contains both a heat strip and furnace this feature will not select the furnace mode. Furnace mode must be selected manually . This mode should be used only in temperatures that will not require fur­nace operation.
Timer ON/OFF Display
Clock Display
UP(+)
Down(-)
F°/C° Button
Room
Reset Button
REMOTE CONTROL
(w/door open)
Clock
Timer
+
-
F°/C°
ROOM
10:00
ON
10:00
75
AUTO
10:00
OFF
IFEEL
°F
MODE
CLOCK
TIMER
SLEEP
SET
IFEEL
Set
Operation Mode Display Window
Low Battery RoomT emperature
I Feel Display
Sleep Display
Orange ON/OFF Button
Sleep
I Feel
F. Option Feature (electric heat strip - if
equipped)
1. Push the “MODE” button until the heat symbol is displayed.
2. Set the desired temperature by pushing the “UP(+)” or “DOWN (-)”
3.
The receiver will beep when each change is com- pleted. The GREEN LED will light.
button.
b. Low Speed (continuous fan operation)
3. The receiver will beep when each change is com-
pleted. The GREEN LED will light.
H. Room Temperature Display
1. Press the “ROOM” button to display the tempera­ture at the remote location.
2. The Room symbol will appear beside the tempera- ture display .
I. Sleep Operation
1. The cool, heat or furnace mode must be selected.
2. Set the temperature at the desired level, and push the sleep button. The sleep symbol will appear on the display and a beep will sound indicating that the unit is in sleep mode. See TIMER OPERA TION.
Note: In the sleep mode the temperature will be offset by 2 oF of the set point, which means, if the set point is 77 oF (during the cool operation) then in sleep mode it will automatically change to 79 oF. The sleep settings will become effective 2 hours after the sleep mode is selected.
J. System Override
1. This is useful in the event the remote batteries are low or the remote is misplaced.
2. System Override - Cooling Operation a. Push the “Cool” button on the receiver . b. System goes to the cooling mode with a set point
of 74 °F .
3. System Override - Heating Operation (if con-
nected to furnace)
a. Push the “Heat” button on the receiver. b. System goes to the “heat” mode with a set
point of 68 oF.
RECEIVER
Green LED
Orange LED
G. Fan Only Operation
1. Push the “MODE” button until the fan symbol is dis­played.
2. Select fan speed by pushing the “FAN” button until the desired fan speed is displayed. a. High Speed (continuous fan operation)
Red LED
Note: If an electric heat strip is present, the control system
will automatically choose this option even if a furnace is present. If the system does not have a heat strip then the furnace option will be chosen. The system can be turned “OFF” by pushing the same button (cool/heat) a second time.
K. “I Feel” Operation
1. The cool, heat, furnace or auto change mode must be selected.
18
Page 19
2. Set the temperature at the desired level, and push
I FEEL
08:00
ON
20:00
OFF
the “I Feel” button. The “I FEEL” symbol will ap- pear on the display and a beep will sound indicating that the unit is in “I FEEL” mode.
I FEEL
3. The hand held remote becomes the temperature sen­sor and must be positioned to send updated signals to the receiver every two minutes.
4. The temperature can be adjusted to the desired level from the remote for its specific location.
Note: If the remote is placed in a location where the receiver cannot locate a signal for 16 minutes, the system will ignore the hand held remote and retain the last set-point. Note: The remote should not be placed in an area that is warmer or colder than the rest of the living space (direct sun­light or air conditioner discharge drafts).
L. Fahrenheit/Celsius Temporary Display
1. Locate the F°/C° Button under the door of the hand held remote. Push the button to display Fahrenheit (F°) temperature reading or press again to display Celsius (C°).
M. Remote Reset
1. The “Reset Button” is located on the hand held re­mote under the door below the “Set Button”. De­press this button to delete all setting programmed into the control.
N. Timer Operation
Note: Every time the clock or timer button is pressed, the
display will blink for 15 seconds giving the operator enough time to change settings. If no changes are made in the 15 second time period the timer display will disappear . Note: Any mode that uses the clock/timer function of the hand held remote will be disabled if the line of sight communication between the remote and receiver are non existent (putting the remote in a drawer).
1. Setting The Clock a. When new batteries are installed, the clock will
display 0:00. b. Clock shows only military time. c. Push the clock button , the clock display should
blink.
620615, 620625 & 620626 Installation & Operating Instructions
d. Press and hold the “UP(+)” or “DOWN (-)” but-
ton to set the clock.
e. Press the “SET” button on hand held remote. Note: When the set button is depressed be careful not to push the reset button at the same time. All previous setting will be lost and need to be re-entered.
2. Setting The Timer to “ON” a. Press the “timer” button and the timer “ON”
clock will appear and blink.
b. Set timer by pushing and holding the “UP(+)” or
“DOWN (-)” buttons.
c. Point hand held remote at the receiver and press
the “SET” button.
d. Receiver should beep and the Orange LED illu-
minate (if unit is off).
Note: When timer “ON” mode is activated the unit will turn “ON” in the last selected mode of operation, select the desided
operation mode prior to setting timer . See TIMER OPERA­TION.
3. Setting The Timer to “OFF” a. Press the “timer” button twice and the timer
“OFF” clock will appear and blink.
b. Set timer by pushing and holding the “UP(+)” or
“DOWN (-)” buttons.
c. Point hand held remote at the receiver and press
the “SET” button.
d. Receiver should beep and the Orange LED illu-
minate (if unit is on).
Note: When timer “Off” mode is activated the unit will turn “OFF” when the clock & timer match. See TIMER OPERA-
TION.
4. Setting The Timer to “ON” &“OFF” a. Press the “timer” button three times and the
timer “ON” clock will blink and “OFF” clock will be visible.
b. Set “ON” timer by pushing and holding the “UP”
or “DOWN” buttons, then push the timer but­ton again and the “OFF” will blink. Press and hold “UP(+)” or “DOWN (-)” to set “OFF” time.
c. Point hand held remote at the receiver and press
the “SET” button.
d. Receiver should beep and the Orange LED illu-
minate (if unit is on). Note: The Orange LED will light indicating the timer sched­ule is active. The unit will cycle on and off in the last mode selected. See TIMER OPERA TION.
19
Page 20
620615, 620625 & 620626 Installation & Operating Instructions
RUN CAP
TO 11 5 VA C 1O 60 Hz.
ON SOME
IN LINE
TO 12 VDC POWER SUPPLY
TO FURNACE
USE COPPER CONDUCTORS ONLY
LINE SPLICE
IF USED
SOLAR OR
WIRING DIAGRAM FOR MODELS
620615.321, 620615.326, 620625.321, 620625.326, 620626.321& 620626.326
1
3
BLK
WHT
SWITCH
ELEMENT
BLK
HEAT ACCESSORY
NOT AVAILABLE
ON SOME
MODELS
BLK
LIMIT
TO FURNACE
WHT
T8
SOLAR OR
DIRTY FILTER
INDICATOR
IF USED
RED
BLK
BLW
T9
T10
BLW
RED
COM
-
+
K4
NO
COM
IN LINE COUPLERS
NO
T7
TO 12 VDC POWER SUPPLY
C
PTCR
COMPRESSOR
WHT
RED
RED
R
BLK
OL
S
C
BLK
T6
T2
T5
T1
K3
J2
J1
BLK
WHT
YEL
WHT
BLK
FAN
MOTOR
G/Y
BLK
G/Y
BRN
WHT
START
CAP
WHT
RED
FREEZE CONTROL
RUN CAP
FAN
HERM
PASSED
DIELECTRIC
RJ-11
LINE SPLICE
TO 115 VAC 1O 60 Hz. USE COPPER CONDUCTORS ONLY
3308574.015
20
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