Atwood AC-1361 - User Manual

AC IOM DUCTED 7/31/2013 rev 3 1
574-206-9713
Rooftop Air Conditioner
for Recreational Vehicles
Ducted Models
AC-1361 & AC-1511
•Installation •Operation • M a i n t e n a n ce Effective 07/31/2013
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 i n s t a ll a t i on i n s t r u c t i on s have been
properly read and und e r s t ood .
I n s t a ll a t i on m u s t conform to Local wiring codes and
r e g u l a t i on s or, in the absence of local codes, the
S t a nd a r d on R e c r e a t i on a l Vehicles, NFPA 1192. and
N a t i on a l E l e c t r i ca l Code NFPA 70.
DO NOT attempt to modify or add c o m pon e n t s to the
i n s t a ll a t i on procedure.
This e qu i p m e n t m u s t only be serviced by a li c e n s e d
r e f r i g e r a t i on mechanic to maintain warranty
coverage.
If your i n s t a ll a t i on varies from the m e t hod outlined
please c on t ac t A t w ood Mobile P r odu c t s , LLC for s p e c i a l t y
advice.
Atwood will not be held responsible for problems
relating to incorrect or improper installation
methods.
GENERAL INFORMATION
I. PURPOSE
This A t w ood AirCommand air c ond i t i on i n g unit is designed
for i n s t a ll a t i on on the roof of a r e c r e a t i on a l vehicle to
provide cooling with AC1361 models and cooling/heating
with AC1511 models.
-The roof m u s t be capable of s uppo r t i n g the w e i g h t of the
unit which is 86lbs (39Kg).
-The a b s o l u t e minimum t h i c k n e ss of the roof m u s t not be
less t h a n 1 inch (25mm).
-The maximum t h i c k n e ss of the roof m u s t not exceed
5 inches (125mm).
-Trimming of the du c t w o r k a nd / o r bo l t s may be n e c e ss a r y
depending on the roof t h i c k n e ss
It is important that the unit is i n s t a ll e d properly and
according to the recommended g u i d e li n e s .
II. ENSURING EFFECTIVE OPERATION
T h e e ff e c t i ve n e ss of the air c ond i t i on e r is d e p e nd e n t on
s eve r a l f ac t o r s e.g. size and h e a t load of the vehicle. When
an A t w ood unit is i n s t a ll e d A t w ood assumes that the
vehicle i s well i n s u l a t e d with 1 inch (25mm) foam minimum
in all walls and roof, that the w i ndo w s are of m od e r a t e s i z e
(preferably double glazed) and the roof ve n t s are airtight
when closed. O t h e r m e t hod s of reducing h e a t load include:
-Closing all doors, h a t c h e s , w i ndo w s and b li nd s
- P o s i t i on the vehicle so if porch is used, it will face the s un
and protect the w i ndo w s from d i r e c t radiation.
-Turning off appliances that m i g h t increase the h e a t load
- E n s u r i n g the vehicle is parked in a shaded po s i t i on .
In periods of e x t r e m e high t e m p e r a t u r e it is recommended
to s t a r t the air c ond i t i on e r earlier in the morning to greatly
improve i t s a b ili t y to cope with the e x p e c t e d high h e a t load.
III. CONDENSATION
In areas of high hu m i d i t y, the humid air within the RV will
cause “ s w e a t i n g ” or c ond e n s a t i on in p a r t s of the unit as the
humid warm air c on t ac t s the colder air discharge s y s t e m . If
t h i s occurs please ensure the following:
-Closing all doors, h a t c h e s , w i ndo w s and blinds to limit the
ingress of warm humid air
- Avoid running the inside fan on LOW or AUTO in s u c h
c ond i t i on s . Running the fan on HI fan speed will r e s u l t in
higher airflow and reduce the t e nd e n c y to have
c ond e n s a t i on form.
LITERATURE NUMBER MPD 15078

Summary

General Information and Purpose

Unit Purpose and Application

Outlines the design and intended application of the Atwood AirCommand AC unit in RVs.

Ensuring Effective Operation

Details factors affecting AC performance and methods to reduce vehicle heat load.

Managing Condensation

Explains condensation causes and provides guidance for its prevention and management.

Installation Preparation and Safety

Pre-Installation Checks and Codes

Emphasizes reading instructions and conforming to electrical and vehicle codes.

Critical Installation Warnings

Highlights hazards of improper installation, modification, and servicing requirements.

Installation Position and Roof Assessment

Unit Placement Guidelines

Details critical placement requirements for central location and direction of travel.

Roof Strength Requirements

Outlines how to assess roof strength and prepare the opening for the unit.

Installation Clearances

Specifies minimum clearance needed around the unit for proper operation and airflow.

Positioning Unit on Roof

Unit Placement and Sealing

Guides on placing the unit over the gasket and aligning mounting holes.

Securing the Unit

Details the process of securing the unit using hold down bars and bolts.

Lifting and Electrical Safety

Alerts users about unit weight, lifting safety, and electrical hazards during installation.

Roof Thickness and Interconnection Cables

Determine Roof Thickness

Provides a table to determine required duct and bolt lengths based on roof thickness.

Interconnection Cable Requirements

Explains the types of cables needed for power, furnace, and thermostat connections.

Wiring Diagram Overview

Shows the interconnection diagram for AC models with a wall-mounted thermostat.

AC Electrical Supply Connection

Connecting AC Power Supply

Details wiring connections for AC power supply to the unit according to codes.

COC-1 Connector Installation

Provides step-by-step instructions for installing the COC-1 power connector.

Wire Preparation for Connector

Illustrates proper wire stripping and preparation for the connector.

COC-1 Connector Installation Procedure

Wire Preparation and Routing

Details precise wire stripping, placement, and sheath routing for the connector.

Housing Assembly and Crimping

Guides on attaching the housing and using tools for secure wire crimping.

Connector Mating and Un-mating

Explains how to connect and disconnect the assembled COC-1 connector.

Ducted Model Installation Steps

Initial Unit Setup and Sealing

Covers cable installation, gasket placement, and initial power connection.

Polystyrene Baffle Installation

Provides instructions for cutting and inserting the polystyrene baffle into the plenum deck.

Ducted Model Installation Steps Continued

Plenum Deck Assembly and Attachment

Details attaching the hold down bars and raising the plenum deck assembly to the unit.

Securing the Plenum Deck

Guides on screwing hold down bolts and tightening them to the specified torque.

Final Ducted Model Installation Steps

Attaching Plenum Fascia

Instructs on attaching the plenum fascia using screws and covering them with plugs.

Verifying Normal Operation

Operational Checks

Lists steps to verify the unit's cooling and heating functions after installation.

Maintenance Procedures

Plenum Filter Cleaning and Replacement

Explains how to clean and maintain the unit's plenum filters.

Mounting Bolt Checks

Advises on checking the tightness of mounting bolts at specified intervals.

Storage Recommendations

Provides guidance on running the unit during vehicle storage.

Operating Instructions

Mode Selections

Describes how to select and use COOL, FAN, HEAT, DRY, and AUTO modes.

Special Functions

Explains the SLEEP, TIMER, and LOCK functions for enhanced control.

Thermostat Display and Controls

Display Settings & Remote Unit

Covers changing display units and the functionality of the remote control unit.

Basic Thermostat Operations

Details how to power the unit on/off and adjust the temperature settings.

Advanced Thermostat Adjustments

Temperature and Mode Settings

Explains advanced temperature setting, C/F conversion, and mode selection.

Overriding and Fan Speed

Details furnace overriding and fan speed adjustments.

Sleep Setting Function

Describes how to activate or deactivate the sleep mode on the thermostat.

Thermostat Timer and Error Codes

Timer Operation

Explains how to set the on/off timer for the air conditioner.

Error Code Interpretation

Lists and explains various error codes displayed by the thermostat.

General Specifications

Unit Dimensions and Weight

Lists physical dimensions and weights for the air conditioner and plenum.

Electrical and Performance Data

Provides electrical ratings, capacity, and refrigerant information.

Troubleshooting Common Issues

Unit Not Operating

Addresses common reasons for the unit not powering on or displaying issues.

Cooling or Heating Problems

Guides on diagnosing and resolving issues with cooling capacity or heating.

Atwood Air Conditioner Limited Warranty

Warranty Coverage and Duration

Outlines the terms, conditions, and duration of the manufacturer's warranty.

Warranty Exclusions and Limitations

Details what is not covered by the warranty and owner responsibilities.

Warranty Claim Process

Explains how to initiate a warranty claim and required procedures.

Wiring Diagram for Ducted Units

AC-1361;AC-1511 Electrical Schematics

Presents the detailed wiring diagram for ducted air conditioners and heat pumps.

Atwood AC-1361 Specifications

General

Brand	Atwood
Model	AC-1361
Category	Air Conditioner
Language	English