Lennox 13ACD-042-230 - User Manual

506694-01 Issue 1720 Page 1 of 16
Save these instructions for future reference
INSTALLATION INSTRUCTIONS
13ACD Split System Air Conditioner
with Dry Nitrogen Holding Charge
215 Metropolitan Drive
West Columbia, SC 29170
This manual must be left with the homeowner for future reference.
This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in
manuals, be alert to the potential for personal injury or death.
Table of Contents
General ........................................................................2
Unit Dimensions - inches (mm) ...................................2
Parts Arrangement.......................................................2
Shipping and Packing List ...........................................3
Torque Requirements ..................................................3
Operating Gauge Set and Service Valves ...................3
Recovering Refrigerant from Existing System ............. 4
New Outdoor Unit Placement ......................................5
Replacement Line Set .................................................6
Brazing Connections ...................................................7
Removing Existing Metering Device and Flushing Line
Set and Indoor Coil ....................................................10
Installing New Indoor Metering Device ...................... 11
Leak Test Line Set and Indoor Coil ............................ 12
Evacuating Line Set, Indoor Coil and Outdoor Unit ... 13
Electrical ....................................................................14
Servicing Outdoor Unit Delivered Void of Nitrogen
Charge .......................................................................15
Maintenance ..............................................................15
This unit is factory-charged with dry nitrogen. The
unit is intended for installation in existing HCFC-22
systems. Carefully follow all installation procedures.
Open both service valves to evacuate system. This
unit is constructed without a factory installed lter drier.
Field-provided liquid line lter drier should be installed
per Figure 6A.
NOTE
Installation or repairs made by unqualied persons can
result in hazards to you and others. Installation MUST
conform with local building codes or, in the absence of
local codes, with the National Electrical Code NFPA
70/ANSI C1-1993 or current edition and Canadian
Electrical Code Part 1 CSA C22.1.
WARNING
Improper selection of a matching indoor unit and
a matching metering device, improper installation,
adjustment, alteration, service or maintenance may void
the warranty. The qualied installer or agency must use
factory-authorized kits or accessories when modifying
this products. Refer to the individual instructions
packaged with the kits or accessories when installing.
CAUTION
These instructions are intended as a general guide and
do not supersede national, state or local codes in any
way.
NOTE
This product contains a chemical known to the State
of California to cause cancer, birth defects or other
reproductive harm.
WARNING

Summary

General Unit Information

Unit Dimensions

Displays physical dimensions of the outdoor unit in inches and millimeters for various models.

Parts Arrangement

Illustrates the typical layout and identification of major components within the outdoor unit.

Operating Gauge Set and Service Valves

Using Manifold Gauge Set

Details how to use a manifold gauge set for checking system charge and its features.

Recovering Refrigerant from Existing System

Recovering Refrigerant

Outlines procedures for removing existing refrigerant using recovery methods and equipment.

New Outdoor Unit Placement

Clearance on All Sides

Specifies minimum clearance requirements around the outdoor unit for proper airflow and service access.

Positioning Considerations

Placing Outdoor Unit on Slab

Guidance on installing the outdoor unit on a slab, including slope and elevation requirements.

Replacement Line Set

Refrigerant Line Set

Information on selecting and sizing line sets for replacement, including connection types and recommendations.

Brazing Connections

Removing Existing Metering Device and Flushing Line Set and Indoor Coil

Typical Existing Fixed Orifice Removal Procedure

Details the process for removing a fixed orifice metering device from an uncased indoor coil.

Typical Existing Expansion Valve Removal Procedure

Connect Gauges and Equipment for Flushing Procedure

Flushing Line Set

Installing New Indoor Metering Device

Indoor Expansion Valve Installation

Sensing Bulb Installation

Equalizer Line Installation

Fixed Orifice (RFC) Device Installation

Leak Test Line Set and Indoor Coil

Test for Leaks

Provides the procedure to test the line set and indoor coil for leaks using refrigerant and nitrogen.

Evacuating Line Set, Indoor Coil and Outdoor Unit

Connect Gauge Set

Evacuate the System

Outlines the multi-step process for evacuating the system to specified micron levels.

Electrical

Size Circuit and Install Disconnect Switch

Check Existing Room Thermostat

Control Wiring

Servicing Outdoor Unit Delivered Void of Nitrogen Charge

Lennox 13ACD-042-230 Specifications

General

Cooling Capacity	3.5 Tons
Refrigerant	R-410A
Voltage	208/230V
Compressor Type	Scroll
Warranty	5-Year Limited Warranty on Parts
Phase	Single Phase