Dometic 3241.301 Installation & Operating Instructions Manual Download Page 6

6

FIG. 11

Install 2 Screws In Tabs

Duct Adapter Screw 

Holes Must Line Up 

If Necessary Rotate 

1/2 A Turn.

Fit Duct Adapter 

Inside Duct

If bolts are left loose there may not be an ad-

equate roof seal or if over tightened, damage 

may occur to the unit base or ceiling template. 

Tighten to torque specifications listed in this 

manual.

   

d. 

EVENLY TIGHTEN MOUNTING BOLTS TO A 

TORQUE OF 4.5 TO 5.6 NM 

(Newton Meters). 

This will compress the roof gasket to approxi-

mately 13 mm. The bolts are self locking so 

further tightening is not necessary. See FIG. 

10.

  6.  Template/Duct adapter

   

a.  Pull  duct  down  through  the  template  open-

ing.

   

b.   Cut the duct 13 mm to 25 mm below the tem-

plate opening. See FIG. 10.

   

c.  Align the template duct adapter with the tem-

plate duct hole making sure the screw holes 

line up (if not, rotate 1/2 turn). Insert template 

duct adapter into duct. Leave one loop of wire 

below the duct adapter groove. Do not insert 

adapter tabs inside the duct.

   

d.  Snap duct adapter into template and install 2 

screws through the duct adapter 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

Front

FIG. 8

Screw

FIG. 10

Start  3 

Mounting 

Bolts By 

Hand

Trim  Duct  13  mm  To 

25 mm Below Ceiling 

Template

Ceiling

Template

Do Not Disturb

Thermostat Bulb

Mounting Bolt

Mounting Bolt

 

4.  Base Pan Duct Adapter

   

a.  Remove the liner from the foam tape and posi-

tion on the base so screw hole and air openings 

are aligned. Place flange of duct on right hand 

side when facing front. See FIG. 8.

   

b.  Install # 10 screw to help hold the duct adapter 

to base pan if desired.

 

5.  Ceiling template installation

Note:

 The large center hole in the ceiling template goes 

to the rear. Insure that the thermostat bulb is not moved 

during installation. See FIG. 10.

   

a.  Plug the nine pin cord from the unit and three 

pin (if available on unit) heater cord into the 

control box on the ceiling template. See FIG. 

9.

   

b.  Route the previously run 220 - 240 VAC power 

supply wire into the junction box on the ceiling 

template. 

   

c.  Start each mounting bolt by hand before tight-

ening them. The 3 threaded inserts in the base 

pan can be seen to aid in starting the bolts. See 

FIG. 10.

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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