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DX14XA SERIES
CONDENSING UNIT
Air Conditioning Installation
& Service Reference
Important Safety Instructions
The following symbols and labels are used throughout this
manual to indicate immediate or potential safety hazards.
It is the owner's and installer's responsibility to read
and comply with all safety information and instructions
accompanying these symbols. Failure to heed safety
information increases the risk of personal injury, property
damage, and/or product damage.
Only personnel that have been trained to install, adjust,
service, maintenance or repair (hereinafter, "service")
the equipment specified in this manual should service the
equipment. The manufacturer will not be responsible
for any injury or property damage arising from improper
service or service procedures. If you service this unit, you
assume responsibility for any injury or property damage
which may result. In addition, in jurisdictions that require
one or more licenses to service the equipment specified in
this manual, only licensed personnel should service the
equipment. Improper installation, adjustment, servicing,
maintenance or repair of the equipment specified in this
manual, or attempting to install, adjust, service or repair
the equipment specified in this manual without proper
training may result in product damage, property damage,
personal injury or death.
HIGH VOLTAGE
Disconnect all power before servicing or
installing this unit. Multiple power sources
may be present. Failure to do so may cause
property damage, personal injury or death.
Do not bypass safety devices.
Our continuing commitment to quality products may mean a change in specifications without notice.
© 2022
IOD-1057A
09/2022
WARNING
WARNING
WARNING
19001 Kermier Rd. Waller, TX 77484
www.daikincomfort.com
INSTALLATION INSTRUCTIONS
Shipping Inspection
Always keep the unit upright; laying the unit on its side
or top may cause equipment damage. Shipping damage,
and subsequent investigation is the responsibility of
the carrier. Verify the model number, specifications,
electrical characteristics, and accessories are correct
prior to installation. The distributor or manufacturer will not
accept claims from dealers for transportation damage or
installation of incorrectly shipped units.
Codes & Regulations
This product is designed and manufactured to comply
with national codes. Installation in accordance with such
codes and/or prevailing local codes/regulations is the
responsibility of the installer. The manufacturer assumes
no responsibility for equipment installed in violation of any
codes or regulations. Rated performance is achieved after
20 hours of operation. Rated performance is delivered at
the specified airflow. See outdoor unit specification sheet
for split system models or product specification sheet for
packaged and light commercial models. Specification
sheets can be found at www.daikincomfort.com for Daikin
brand products. Within the website, please select the
residential or commercial products menu and then select
the submenu for the type of product to be installed, such as
air conditioners or heat pumps, to access a list of product
pages that each contain links to that model's specification
sheet.
The United States Environmental Protection Agency
(EPA) has issued various regulations regarding the
introduction and disposal of refrigerants. Failure to
follow these regulations may harm the environment
and can lead to the imposition of substantial fines.
Should you have any questions please contact the local
office of the EPA.
If replacing a condensing unit or air handler, the system
must be manufacturer approved and Air Conditioning,
Heating, and Refrigeration Institute (AHRI) matched.
NOTE: Installation of unmatched systems is strongly
discouraged.
Refer to the unit Specification Sheet for the recommended
indoor model selection. NOTE: This unit must be used
with a purchased two stage room thermostat with 24 VAC
control circuitry.
Table of Contents
Related Manuals for Daikin DX14XA Series
Summary of Contents for Daikin DX14XA Series
- Page 1 Specification service, maintenance or repair (hereinafter, “service”) the equipment specified in this manual should service the sheets can be found at www.daikincomfort.com for Daikin equipment. The manufacturer will not be responsible brand products. Within the website, please select the...
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Page 2: Installation Clearances
Outdoor units are approved for operation above 55°F in For optimum performance, the minimum length cooling mode. Operation below 55°F requires the use of an interconnecting tubing is preferred. When possible approved low ambient kit. minimize the amount of bends and turns. Damage to the unit caused by operating the unit in a Rooftop Installations structure that is not complete (either as part of new... -
Page 3: Safe Refrigerant Handling
Safe Refrigerant Handling Use only refrigerant grade (dehydrated and sealed) copper tubing to connect the condensing unit with the While these items will not cover every conceivable indoor evaporator. After cutting the tubing, install plugs to situation, they should serve as a useful guide. keep refrigerant tubing clean and dry prior to and during installation. -
Page 4: Leak Testing (Nitrogen Or Nitrogen-Traced)
Insulation is necessary to prevent condensation from NOTE: Be careful not to kink or dent refrigerant forming and dropping from the suction line. Armflex (or lines. Kinked or dented lines will cause poor satisfactory equivalent) with 3/8” min. wall thickness is performance or compressor damage. -
Page 5: Electrical Connections
This unit is designed for three phase operation. DO NOT OPERATE ON A SINGLE PHASE POWER SUPPLY. 5000 Measure the power supply to the unit. The supply voltage 4500 must be in agreement with the unit rating plate power 4000 requirements. -
Page 6: Overcurrent Protection
Three Phase Compressor Rotation Example: A 7 ½ Ton unit is to be installed. The distance from the building to the unit is 75’. Calculate the minimum wire size CAUTION assuming no more than 2% voltage drop. Use care when handling scroll compressors. Dome MCA for 7 Ton 230V unit = 43.3 (from S&R plate). -
Page 7: Charge Verification
System Start Up Final Charge Adjustment Never operate the compressor with the suction valve The outdoor temperature must be 60°F or higher. Set the closed to test the compressor’s pumping efficiency. In room thermostat to COOL, fan switch to AUTO, and set the some cases, this can result in serious compressor damage temperature control well below room temperature. - Page 8 TROUBLESHOOTING ANALYSIS TABLE COMPLAINT PROBABLE CAUSE REMEDY 1. Excessive charge of refrigerant in the system 1. Purge or pump-down excessive charge. 2. Inadequate supply of air across the condensor 2. Make certain that coil is not fouled in any way, or that air coil.
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Page 9: Wiring Diagram
WIRING DIAGRAM Wiring is subject to change, always refer to the wiring diagram on the unit for the most up-to-date wiring. - Page 10 PAGE LEFT INTENTIONALLY BLANK.
- Page 11 PAGE LEFT INTENTIONALLY BLANK.
- Page 12 CUSTOMER FEEDBACK Daikin Comfort Technologies is very interested in all product comments. Please fill out the feedback form on the following link: https://daikincomfort.com/contact-us You can also scan the QR code on the right to be directed to the feedback page.