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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.  Fail-
ure to heed safety information increases the risk of personal in-
jury, property damage, and/or product damage.

HIGH VOLTAGE! 

Disconnect ALL power before servicing. Multiple

power sources may be present. Failure to do so may

cause property damage, personal injury or death.

Only personnel that have been trained to install, adjust, service 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 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.

Scroll equipped units should never be used to evacuate the air

conditioning system. Vacuums this low can cause internal
electrical arcing resulting in a damaged or failed compressor.

CAUTION

DZ11TA SERIES
CONDENSING UNIT

HEAT PUMP
INSTALLATION & SERVICE REFERENCE

SHIPPING INSPECTION

Always keep the unit upright; laying the unit on its side or top may
cause equipment damage. Shipping damage, and subsequent in-
vestigation 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 na-
tional codes. Installation in accordance with such codes and/or
prevailing local codes/regulations is the responsibility of the in-
staller.  The manufacturer assumes no responsibility for equip-
ment installed in violation of any codes or regulations.  Rated per-
formance is achieved after 20 hours of operation.  Rated perfor-
mance is delivered at the specified airflow. See outdoor unit speci-
fication sheet for split system models or product specification sheet
for packaged and light commercial models. Specification sheets
can be found at 

www.daikinac.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 prod-
uct to be installed, such as air conditioners or heat pumps, to ac-
cess 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 dis-
posal 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 of-

fice of the EPA.

If replacing a condensing unit or air handler, the system must be
manufacturer approved and Air Conditioning and Refrigeration
Institute (AHRI) matched.  

NOTE: 

Installation of unmatched sys-

tems is strongly discouraged.

Outdoor units are approved for operation above 55°F in cooling
mode.  Operation below 55°F in cooling mode requires the use of
an approved low ambient kit.

Damage to the unit caused by operating the unit in a structure
that is not complete (either as part of new construction or reno-
vation) is not covered under the warranty.

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.

INSTALLATION INSTRUCTIONS

 

Our continuing commitment to quality products may mean a change in specifications without notice.

©

  2018

5151 San Felipe St., Suite 500, Houston, TX  77056

www.daikinac.com

IOD-4032
4/2018

Summary of Contents for DZ11TA Series

Page 1: ...tion damage or installation of incorrectly shipped units CODES REGULATIONS This product is designed and manufactured to comply with na tional codes Installation in accordance with such codes and or prevailing local codes regulations is the responsibility of the in staller The manufacturer assumes no responsibility for equip ment installed in violation of any codes or regulations Rated per formance...

Page 2: ...s preferred When possible mini mize the amount of bends and turns ROOFTOP INSTALLATIONS If it is necessary to install this unit on a roof structure ensure the roof structure can support the weight and that proper consider ation is given to the weather tight integrity of the roof Since the unit can vibrate during operation sound vibration transmission should be considered when installing the unit V...

Page 3: ... tubing clean and dry prior to and during installation Tubing should always be cut square keeping ends round and free from burrs Clean the tubing to prevent contamination Do NOT let refrigerant lines come in direct contact with plumbing ductwork floor joists wall studs floors and walls When running refrigerant lines through a foundation or wall openings should allow for sound and vibration absorbi...

Page 4: ...iers which are continually wet when the unit is operating NOTE Be careful not to kink or dent refrigerant lines Kinked or dented lines will cause poor performance or compressor damage Do NOT make final refrigerant line connection until plugs are removed from refrigerant tubing NOTE Before brazing verify indoor piston size by checking the piston kit chart packaged with indoor unit LEAK TESTING NITR...

Page 5: ...fficient to carry the Minimum Circuit Ampacity MCA listed on the serial plate The supply voltage can be unbalanced phase to phase within 2 The following formula can be used to determine the percent age of voltage unbalance for your unit Percentage Voltage Unbalance 100 x Max Voltage Deviation From Average Voltage Average Voltage Example L1 L2 220V L2 L3 216V Average Voltage 220 216 213 3 649 3 Max...

Page 6: ...y reduced compared to marked values To correct disconnect power and switch any two leads at the unit contactor and re observe HIGH VOLTAGE CONNECTIONS Route power supply and ground wires through the high voltage port and terminate in accordance with the wiring diagram pro vided inside the control panel cover LOW VOLTAGE CONNECTIONS Condensing unit control wiring requires a five conductor low volt ...

Page 7: ...rature 5 Using an additional electronic thermometer measure the ambient 6 Adjust the charge until the hot gas temperature equals 105º F ambient or 5º F Remove charge to increase the tem perature NOTE When adjusting the charge allow the compressor to operate for about 10 minutes before taking readings NOTE Subsequent opening and replace of the cap will require only 1 2 to 1 hex flat See the table b...

Page 8: ...t of equipment 1 1 x temp rise In other cases measurement of external static pressure is helpful For details see the Installation Instructions for your indoor unit TROUBLE SHOOTING ANALYSIS TABLE COMPLAINT PROBABLE CAUSE REMEDY 1 High Head Pressure 1 Excessive charge of refrigerant in system 2 Inadequate supply of air across the condenser coil 3 Non condensate gases in the system 1 Purge or pump d...

Page 9: ...low 375 425 CFM ton will cause excessive discharge pressures that may cause the high pres sure switch to function Low Return Air Temperatures Return ductwork temperatures that are less than 60 F will cause low discharge pressure low suction pressure and excessive de frost cycling Undercharging An undercharged system will cause low discharge pressure low suction pressure and an accumulation of fros...

Page 10: ...10 THIS PAGE LEFT INTENTIONALLY BLANK ...

Page 11: ...ER MOTOR RELAY CS COMPRESSOR SOLENOID HPS HIGH PRESSURE SWITCH CHS CRANKCASE HEATER SWITCH SSHR SECOND STAGE HEAT RELAY CONTROLS SHOWN WITH THERMOSTAT IN OFF POSITION WIRING CODE FACTORY WIRING HIGH VOLTAGE LOW VOLTAGE OPTIONAL HIGH VOLTAGE FIELD WIRING HIGH VOLTAGE LOW VOLTAGE LVJB CONTROL BO X BK BR PU BK DFT YL PK LPS DFT W O RV DC RVC BK BK CH BK W2 RD YL C T1 L1 T2 L2 T3 L3 YL RD FC PU BR PU ...

Page 12: ...12 Our continuing commitment to quality products may mean a change in specifications without notice 2018 5151 San Felipe St Suite 500 Houston TX 77056 www daikinac com ...

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