Dometic 459146.70X Installation & Operating Instructions Manual Download Page 12

12

A.  Controls

1.  The selector switch has seven positions includ-

ing "OFF". It controls the fan speeds, cooling 

modes, and heating modes of operation. See 

(FIG. 22).

FIG. 22

Colder

Black Graphic 

Fan

Red Graphic 

Heating

Blue Graphic

Cooling

2.  The thermostat controls the compressor ON/

OFF operation within a temperature range of 

approximately 65° F and 90° F measured at the 

ADB inlet.

B.  "OFF" Position ( )

1.  This is to turn unit off.

C.  Cooling Operation (Blue Graphic)

1.  Turn selector switch to cooling (blue graphic).
2.  Set the thermostat at the desired temperature 

level.

3. 

Select  the  fan  speed  that  best  satisfies  your 

needs:

a.  HIGH COOL: Selected when maximum cool-

ing and dehumidification required.

b.  LOW COOL: Selected when room is at de-

sired comfort level and needs to be main-

tained. Normally this speed used for night 

time operation.

The compressor will cycle on and off as 

cooling is required to maintain the select-

ed temperature level. The fan runs when 

the compressor is off to help keep the 

temperature uniform throughout the RV.

 

Wait at least 2 minutes before 

restarting the compressor when it has been 

manually cycled off with either the selector 

switch or the temperature set lever. Other-

wise, compressor will quick-cycle and could 

result in compressor or supply circuit over-

load.

OPERATING INSTRUCTIONS

D.  Heating Operation (Red Graphic)

The heat pump mode of operation will

 NOT 

replace a furnace for heating your RV in cold 

weather. The intent is to remove the chill on 

cool days or mornings.

1.  Set the thermostat to the desired temperature 

level.

2.  Turn the selector switch to heating (red graphic). 

There are two positions to select from (high and 

low. See (FIG. 22).

3.  The blower will come on immediately. The heat 

function will start if the thermostat is not satis-

fied.

The compressor will cycle on and off as 

heating is required to maintain the select-

ed temperature level. The fan runs when 

the compressor is off to help keep the 

temperature uniform throughout the RV.

 

Wait at least 2 minutes before 

restarting the compressor when it has been 

manually cycled off with either the selector 

switch or the temperature set lever. Other-

wise, compressor will quick-cycle and could 

result in compressor or supply circuit over-

load.

E.  Fan Operation (Black Graphic)

This will circulate the air in your RV without 

cooling or heating.

1.  Turn the selector switch to fan (black graphic). 

There are two positions to select from (high and 

low). See (FIG. 22).

F.  Center Air Discharge

1.  Slide lever to open and close. See (FIG. 23).

FIG. 23

Slide To Open

Or Close

Summary of Contents for 459146.70X

Page 1: ...structions MUST stay with this product Model 459146 70X 459146 71X B59146 71X REVISION A Form No 3315386 000 5 13 French 3315387 000_A 2013 Dometic Corporation LaGrange IN 46761 RECORD THIS INFORMATION FOR FUTURE REFERENCE Model Number Serial Number ADB Model Number ADB Serial Number Date Purchased Roof Top Unit Description Model Use With Air Distribution Box Model Control Heat Pump 459146 B59146 ...

Page 2: ...e 12 MAINTENANCE 13 A Air Filter 13 B ADB Housing 13 C Fan Motor 13 GENERAL INFORMATION 13 A Frost Formation 13 B Heat Gain 13 C Condensation 13 SERVICE UNIT DOES NOT OPERATE 14 WIRING DIAGRAMS 14 A Unit Wiring Diagram 14 B ADB Wiring Diagram 14 INTRODUCTION This air conditioner hereinafter referred to as unit or product is designed and intended for installation on the roof of a Recreational Vehic...

Page 3: ... all safety information and instructions to avoid possible injury or death Read and understand these instructions be fore installing using servicing performing maintenance on this product Incorrect installation operation servicing maintaining of this product can lead to seri ous injury Follow all instructions The installation MUST comply with all ap plicable local or national codes including the l...

Page 4: ...er sizing Dometic Corporation gives GENERAL guidelines for generator requirements These guidelines come from experiences people have had in actual applications When sizing the generator the total power usage of your RV must be considered Keep in mind generators lose power at high altitudes and from lack of maintenance CIRCUIT PROTECTION Time Delay Fuse or Circuit Breaker Required B Roof Requiremen...

Page 5: ...stalled on a relatively flat and level roof section measured with the RV parked on a level surface See table below for maximum acceptable tilt Model Number Max Tilt 459146 B59146 15 After Location Has Been Selected c Check for obstructions in the area where unit will be installed See FIG 1 FIG 2 29 7 8 34 7 8 13 1 8 18 Front Dimensions Are Nominal FIG 1 Keep This Area Free Of Obstructions Roof Ope...

Page 6: ...atching hole in the ceiling The opening created must be framed to pro vide adequate support and prevent air from being drawn from the roof cavity Framing stock 3 4 or more in thickness must be used Remember to provide an entrance hole for power supplies at the front of the opening See FIG 4 3 4 Min Leave Access For Power Supply Wiring FIG 4 15 Min At Front Of Opening Do Not Cut Roof Structure Or R...

Page 7: ...2 5 3 0 7 4 5 5 0 3 2 0 2 5 8 4 0 4 5 4 1 5 2 0 9 3 Do NOT slide unit Otherwise damage to gasket on bottom of unit may occur and could cause a leak Lift and place the unit over the prepared open ing using the gasket on the unit as a guide See FIG 5 FIG 5 Do Not Slide Lift And Place Front 4 Place the ADB kit inside the RV This box con tains mounting hardware for the unit and will be used inside the...

Page 8: ...ector b Install supplied non metallic cable connector in junction box hole cutout See FIG 11 for proper orientation c Route the previously run 120 Vac power sup ply wire through cable connector and into junction box d Secure 120 Vac power supply by tightening cable connector clamp making sure not to damage wires See FIG 11 e Hold the ceiling template up to the roof open ing and line up the channel...

Page 9: ... in compliance with all applicable electrical codes Failure to obey this warning could result in death or se rious injury c Connect white to white black to black using appropriate size connectors Secure bare copper wire under grounding screw in junc tion box See FIG 15 FIG 15 Junction Box Cover Junction Box Cover Screw d Tape the connectors to the supply wire to as sure they don t vibrate loose e ...

Page 10: ...rille into the ADB Slide re turn air vent grille tab into slot in ADB and rotate up and snap in place See FIG 20 INSTALLATION INSTRUCTIONS FIG 17 Hole In Ceiling Template ADB Hole Alignment Hole In ADB Cover 2 Install two 2 supplied sheet metal screws in side return air opening to secure ADB to ceiling template See FIG 18 3 Install eight 8 supplied wood screws inside the front rear and side doors ...

Page 11: ...1 FIG 21 Knob 8 The unit installation is now complete and is ready for operation The power supply to the unit may now be turned on 9 Verify that all features of the installed system work Please read the following operating in structions before attempting to run the unit INSTALLATION INSTRUCTIONS ...

Page 12: ...rature set lever Other wise compressor will quick cycle and could result in compressor or supply circuit over load OPERATING INSTRUCTIONS D Heating Operation Red Graphic The heat pump mode of operation will NOT replace a furnace for heating your RV in cold weather The intent is to remove the chill on cool days or mornings 1 Set the thermostat to the desired temperature level 2 Turn the selector sw...

Page 13: ...ng 1 Clean ADB housing and control panel with a soft cloth dampened with a mild detergent Never use furniture polish or scouring powders C Fan Motor 1 The blower motor is factory lubricated and re quires no service B Heat Gain The ability of this 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...

Page 14: ...urnt or circuit breaker is ON and not activated After the above checks call your local service center for further help This unit must be ser viced by qualified service personnel only When calling for service always give the following Unit model and serial number found on the identification label located on base pan of unit bottom Return air vent grille must be removed from ADB to view ADB model an...

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