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•Installation •Operation •Maintenance
This air conditioner design has been certified by the Canadian
Standards Association for installation in recreation vehicles.
SERVICE CALLS & QUESTIONS
Location and phone numbers of qualified Service Centers can
be found at our website http:/www.atwoodmobile.com or call
866-869-3116 to locate a Service Center.
WARNING
It is important that this installation
:
manual is read and understood before
installation. The unit must be installed by a
qualified service technician. Failure to properly
install the unit or attempting to modify it in any
way can be extremely hazardous and may
result in property damage and personal injury
and will void the warranty.
BEFORE INSTALLATION
Ensure that the installation instructions have been
properly read and understood.
Installation must conform to Local wiring codes and
regulations or, in the absence of local codes, the
Standard on Recreational Vehicles, NFPA 1192. and
National Electrical Code NFPA 70.
DO NOT attempt to modify or add components to the
installation procedure.
This equipment must only be serviced by a licensed
refrigeration mechanic to maintain warranty
coverage.
If your installation varies from the method outlined
please contact Atwood Mobile Products, LLC for specialty
advice.
Atwood will not be held responsible for problems
relating to incorrect or improper installation
methods.
AC IOM 12/03/2014 rev 8
574-206-9713
LITERATURE N U M B E R MPD 15000
GENERAL INFORMATION
I. PURPOSE
This Atwood Air Command air conditioning unit is
designed for installation on the roof of a recreational
vehicle to provide cooling with AC-1351 models and
cooling/heating with AC-1501 models.
-The roof must be capable of supporting the weight of the
unit which is 86lbs (39Kg).
-The absolute minimum thickness of the roof must
not be less than 1 inch (25mm).
-Roof thicknesses between 5.0-6.5 inches (125-165mm)
require extra-long hold down bolts Atwood PN 15086.
-Trimming of the ductwork and/or bolts may be
necessary depending on the roof thickness
It is important that the unit is installed properly and
according to the recommended guidelines.
II. ENSURING EFFECTIVE OPERATION
The effectiveness of the air conditioner is dependent on
several factors e.g. size and heat load of the vehicle. When
an Atwood unit is installed Atwood assumes that the
vehicle is well insulated with 1 inch (25mm) foam minimum
in all walls and roof, that the windows are of moderate size
(preferably double glazed) and the roof vents are airtight
when closed. Other methods of reducing heat load include:
-Closing all doors, hatches, windows and blinds
-Position the vehicle so if porch is used, it will face the sun
and protect the windows from direct radiation.
-Turning off appliances that might increase the heat load
-Ensuring the vehicle is parked in a shaded position.
In periods of extreme high temperature it is recommended
to start the air conditioner earlier in the morning to greatly
improve its ability to cope with the expected high heat load.
III. CONDENSATION
In areas of high humidity, the humid air within the RV will
cause "sweating" or condensation in parts of the unit as the
humid warm air contacts the colder air discharge system. If
this occurs please ensure the following:
-Closing all doors, hatches, windows and blinds to limit the
ingress of warm humid air
- Avoid running the inside fan on LOW or AUTO in such
conditions. Running the fan on HI fan speed will result in
higher airflow and reduce the tendency to have
condensation form.
1
Rooftop Air Conditioner
for Recreational Vehicles
Non-Ducted Models
AC-1351 & AC-1501
Effective 12/03/2014
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Table of Contents
Related Manuals for Atwood AC-1351
Summary of Contents for Atwood AC-1351
-
Page 1: General Information
Location and phone numbers of qualified Service Centers can designed for installation on the roof of a recreational be found at our website http:/www.atwoodmobile.com or call vehicle to provide cooling with AC-1351 models and 866-869-3116 to locate a Service Center. cooling/heating with AC-1501 models. -
Page 2: Main Components
INSTALLATION PARTS LIST MAIN COMPONENTS 1) Atwood AirCommand Rooftop Air conditioner 2) Roof Seal Gasket 2 Pcs 3) Adapter 4) Extension Duct 5) Brace Assembly 6) Plenum 7) Plenum Filters x2 FITTINGS & FIXTURES 8) M8 Bolts x 4 9) Hold Down Bars x 4... - Page 3 - If the vehicle is over 23’ in length, or has an unusually high heat load (see General Operating Information section regarding expectations about insulation etc.), Atwood recommends 2 or more units to cool effectively. - When considering the installation position remember to check for clearance around the plenum inside the vehicle.
- Page 4 - DO NOT slide the unit on the roof, this may damage the gasket and result in leaks. Note: Atwood recommends the use of the Molex connector 19421-0001 (Atwood PN 15024) described on the next page. AC IOM 12/03/2014 rev 8...
- Page 5 AC IOM 12/03/2014 rev 8...
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- Page 7 3.94 (100) Roof thicknesses between 5.0” and 6.5” require extra-long hold down bolts available as Atwood Service kit PN 15086 ASSEMBLE DUCT - Thread a hold down bar onto the M8 bolt and push the bolt almost all the way into the hole in each corner of the brace (Fig 9) - Leave a .40 inch gap between the hold down...
- Page 8 ATTACH DUCT TO UNIT - Raise the brace assembly and slip the extension duct over the outside diameter of the adapter underneath the rooftop unit. (Fig 11-12). When attaching the duct to the unit take care to ensure it forms a tight, unbroken seal that doesn’t allow discharge air to escape.
- Page 9 ATTACH PLENUM COVER - Secure the main plenum cover to the duct assembly with the 4 screws provided (Fig 15). TIP: It is important that these screws are not over tightened otherwise the plenum may crack. - Remove the filter elements by pulling them out of the plenum, and use the six self-tapping counter sunk screws to secure the covers edges to the...
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Page 10: Verifying Normal Operation
Replacement filters can be ordered directly from Atwood Mobile Products, LLC by calling 866-869-3118. II. Mounting Bolts Atwood suggests that the hold down bolts are initially checked for tightness within the first 3 months of installation, and thereafter every 12 months if the vehicle is in constant use. -
Page 11: General Specifications
Thermostat control module. A “cool only” 5 seconds and the room temperature will be displayed. After releasing the model (AC-1351) will not have the furnace SLEEP pushbutton the display will revert back to displaying the set point pushbutton on the display. - Page 12 OPERATING INSTRUCTIONS – Continued MODE - DRY - The DRY mode can provide mild dehumidification for room temperatures above the set point and when additional cooling is not required. - Press MODE pushbutton to highlight DRY. - Set the temperature to desired set point. Note: the fan speed is locked in LOW. - The compressor will cycle on and off at approximate intervals of 6 minutes to extract moisture from the air while not lowering the room air temperature - For humid room temperatures below the set point - a separate, specialty dehumidifier will be more effective.
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Page 13: Timer Button
OPERATING INSTRUCTIONS FOR ADJUSTING THE THERMOSTAT Infra red reception Temperature display SENSOR To receive wireless handset sign al area On/Off button ON/OFF Display timer setting, set or ro om Press once to start operation temperature in C or F Press again to stop operation AUTO COOL Room temperature... - Page 14 OPERATING INSTRUCTIONS FOR ADJUSTING THE THERMOSTAT (cont) 3. Mode setting MODE Press button to change the operation mode as follow:- Cool→Dry→Heat→Fan→Auto Cool/Heat Heat and Auto mode is not available for cooling only model. Auto mode is not available for model where furnace is primary heating.
- Page 15 OPERATING INSTRUCTIONS FOR ADJUSTING THE THERMOSTAT (cont) 7. On/Off timer setting When the system is on, setting the timer will turn off the unit after the programmed hours were counted down. When the system is off, setting the timer will turn on the unit after the programmed hours were counted down.
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Page 16: Troubleshooting
TROUBLESHOOTING Control Pad will not illuminate when ON/OFF Check circuit breaker is on button is pressed Control cable may be unplugged between outside unit and inside fascia Check power supply to vehicle Check circuit breaker is on Unit does not cool Control cable may be unplugged between outside unit and inside fascia Check power supply to vehicle... - Page 17 This warranty extends to the original owner of the product only and is subject to the following conditions: 1. For a period of two years from the date of purchase, Atwood will replace the complete air conditioner if the coils and plumbing leaks due to corrosion. This warranty includes reasonable labor charges required to replace the complete air conditioner.
- Page 18 AC IOM 12/03/2014 rev 8...