Daikin DX14XA Series User manual
INSTALLATION INSTRUCTIONS
DX14XA SERIES
CONDENSING UNIT
IOD-1057A
09/2022
© 2022
www.daikincomfort.com
Important Safety Instructions
WARNING
WARNING
HIGH VOLTAGE
WARNING
Shipping Inspection
accept claims from dealers for transportation damage or
Codes & Regulations
This product is designed and manufactured to comply
for Daikin
residential or commercial products menu and then select
The United States Environmental Protection Agency
follow these regulations may harm the environment
must
NOTE: Installation of unmatched systems is strongly
NOTE:
2
Installation Clearances
there should
be a minimum of 60 inches between the top of the unit
Another important consideration in selecting a location for
60"
24"
12"
12"
12"
Rooftop Installations
NOTE: These units require special location consideration
minimum 3” clearance under the outdoor coil is required
Rigging
WARNING
NOTE:
3
Safe Refrigerant Handling
•
•
•
•
WARNING
•
•
•
•
WARNING
•
•
•
WARNING
CAUTION
Refrigerant Lines
Suct Liq Suct Liq Suct Liq
7 1/2 1 1/8 5/8 1 3/8 5/8 1 3/8 5/8
10 1 3/8 5/8 1 5/8 5/8 1 5/8 5/8
Cond Unit
(Tons)
REFRIGERANT LINE LENGTH (ft)
0-24
25-49*
50-74**
Line Diameter (In. OD)
than 50 feet
contact your local distributor for assistance.
NOTE: If changing
Filter Drier and Sight Glass
supplied sight glass/moisture indicator on the liquid line as
If the lines must pass under or through a concrete
Refrigerant Line Connections
WARNING
WARNING
charge the system to 10 psi using the appropriate
System Evacuation
Do not open
valves until the system is evacuated.
WARNING
necessary as some compressors create a mechanical
5
5000
3500
3000
2500
2000
1500
1000
500
10
PRESENT
ACUUM
IN
MICRONS
NO
NO
• If the pressure rises to 1000 microns or less and
•
•
Electrical Connections
WARNING
WARNING
Notice:
must
Rated
Voltage
Supply Voltage
Supply Voltage
197 253
506
The condensing unit rating plate lists pertinent electrical
Example:
L2 – L3 = 216 V
Avg. Voltage: (220+216+213) / 3
649 / 3
Maximum Deviation from Average = 220 – 216 = 4
% Voltage Unbalance = 100 x (4 / 216)
= 400 / 216
Wire
Size
10 15 20 25 30 35
77 51 NR NR NR NR NR
12 122 61 NR NR NR NR
10 193 129 97 77 55 NR NR
307 205 123 103 77
6 326 195 163 122 109
6
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
assuming no more than 2% voltage drop.
MCA for 7 Ton 230V unit = 43.3 (from S&R plate).
Applying previous table wire sizes less than #8 AWG
cannot be used for circuits which have a rating of 45A. The
#8 wire is not suitable since the maximum length for a 45A
circuit is 68’.
Solution: Use a #6 AWG wire suitable up to 109’.
NOTE: It is the contractors’s responsibility to follow the
NEC (USA) or CEC (Canada) when sizing the service wire
for this unit.
*Always refer to the unit’s S&R plate for actual ratings.
Overcurrent Protection
• Time delay fuses
•
NOTE:
Three Phase Compressor Rotation
CAUTION
ensuring the suction pressure drops and discharge
NOTE:
High Voltage Connections
Low Voltage Connections
NOTE:
S1 S2 R C O
T1
T2 T3 T5
R C O
C
7
System Start Up
NOTE:
•
•
WARNING
CAUTION
NOTICE:
CAUTION
Troubleshooting
Qualied Installer/Servicer Only
COMPLAINT PROBABLE CAUSE REMEDY
High Head Pressure
1. Excessive charge of refrigerant in the system
2. Inadequate supply of air across the condensor
coil.
3. Non-condensate gases in the system.
1. Purge or pump-down excessive charge.
2. Make certain that coil is not fouled in any way, or that air
is not re-circulating.
3. Purge these gases from the system. Recharge system, if
necessary.
Low Head Pressure
1. System low on refrigerant.
2. Compressor valve broken.
1. Charge systen until sight glass is clear of bubbles.
2. Replace compressor.
Low Suction Pressure
1. Liquid line valve closed.
2. Restricted liquid line.
3. The bulb of the thermal expansion valve has lost
its charge.
4. System low on refrigerant.
5. Dirty filters.
6. Coil frosted up.
7. Flash gas in the liquid line.
8. Quantity of air through evaporator not adequate.
1. Open the liquid line.
2. Replace filter-dryer.
3. Detach the bulb fron the suction line and hold in one
hand. If no liquid refrigerant goes through the valve, replace
the valve.
4. Test the unit for leaks. Add refrigerant until sight glass is
free from bubbles, after repairing leak.
5. Clean or replace filter.
6. Defrost and clean coil. Clean or replace filters.
7. Excessive liquid line drop. Check liquid line size.
8. Increase the blower speed.
High Suction Pressure
1. Expansion valve stuck open.
2. Expansion valve bulb not in contact with suction
line.
3. Suction and/or discharge valve leaking or broken.
1. Correct valve action or replace the valve.
2. Fasten bulb securely to suction line.
3. Replace compressor.
Compressor will not
start.
1. Disconnect switch open (if equipped).
2. Blown fuse or fuse at disconnect switch (if
equipped).
3. Thermostat set too high.
4. Selector switch in "OFF" position.
5. Contactor and/or relay coils burned out.
6. Loose or open electrical connection in either the
control or power circuit.
1. Close the disconnect switch (if equipped).
2. Check the cause of failure and replace the fuse (if
equipped).
3. Adjust to lower temperature.
4. Turn selector switch knob to "Cool" position.
5. Replace contactor and/or relay.
6. Inspect and secure all electrical connections.
9
DISCONNECT ALL POWER SERVICING OR INSTALLING THIS UNIT.
ULTIPLE POWER SOURCES PRESENTAILURE TO DO SO
CAUSE PERSONAL OR DEATH.
A1 A2
CC
L1 T1
CC
L2 T2
L3 T3
M
3~ COMP
COMPONENT LEGEND
RD
BK
GND
LINE
VOLTAGE
208-230/460/3PH/60Hz
POWER AND CONTROLS WIRING DIAGRAM
DX14XA 090-120, 3PH
NOTES
WIRE CODE
BK BLACK
BL BLUE
BL/PK BLUE WITH PINK STRIPE
BR BROWN
GR GREEN
OR ORANGE
PK PINK
PU PURPLE
RD RED
WH WHITE
YL YELLOW
YL/PK YELLOW WITH PINK STRIPE
HIGH VOLTAGE
LOW VOLTAGE
OPTIONAL HIGH VOLTAGE
OPTIONAL LOW VOLTAGE
CHASSIS GROUND
FIELD WIRING
FACTORY WIRING
HIGH VOLTAGE
LOW VOLTAGE
EARTH GROUND
0140R00758-B
L1
L3
L2YL
M
1~ CM
BK
BR
GR
WH
A1 A2
CS
BL/PK BL/PK
YL/PK
YLPU
GR
BK
BK
BL
PU YL BL
Y2 CY1
CCH
LVJB
2
CC COMPRESSOR CONTACTOR
CCHCRANKCASE HEATER
CCX COMPRESSOR CONTACTOR AUXILIARY
CM CONDENSER MOTOR
COMP COMPRESSOR
CS COMPRESSOR SOLENOID (STAGE 2)
GND EQUIPMENT GROUND
HPS HIGH PRESSURE SWITCH
LPS LOW PRESSURE SWITCH
LVJB LOW VOLTAGE JUNCTION BOX
REPLACEMENT WIRE MUST BE SAME SIZE AND TYPE
OF INSULATION AS ORIGINAL (AT LEAST 105° C). USE
COPPER CONDUCTORS ONLY. USE N.E.C. CLASS 2
WIRE FOR ALL LOW VOLTAGE FIELD CONNECTIONS.
TO INDOOR UNIT'S LOW VOLTAGE TERMINAL BLOCK
AND THERMOSTAT.
BL
OR
BL
BL
BL
WH
1
2
HPS
LPS
BKBR
YL
WH
YL/PK CCX
BK
BL
10
11
12
© 2022
www.daikincomfort.com
This manual suits for next models
2
Table of contents
Other Daikin Heat Pump manuals
Daikin
Daikin VRV IV RXYLQ10T7Y1B Series User manual
Daikin
Daikin RR20AVAK/DX160181XM/AA Operating instructions
Daikin
Daikin Altherma 3 R ECH2O User manual
Daikin
Daikin CHYHBH05AA How to use
Daikin
Daikin RXZ09NV1S User manual
Daikin
Daikin ERRA08-12EW1 How to use
Daikin
Daikin RXR28KVMA User manual
Daikin
Daikin Altherma 3 H HT User manual
Daikin
Daikin LFSLHS0200AXV1 Specification sheet
Daikin
Daikin FVXG50KV2CW User manual
Daikin
Daikin EKHHE200CV3 Operating instructions
Daikin
Daikin Altherma FWXV10AATV3 User manual
Daikin
Daikin M Series User manual
Daikin
Daikin FXFQ09PVJU User manual
Daikin
Daikin EHYHBX08AA User manual
Daikin
Daikin Altherma 3 R W How to use
Daikin
Daikin R13LV2S User manual
Daikin
Daikin SUPER MULTI NX 2MXS18GVJU User manual
Daikin
Daikin Altherma Large Monobloc User manual
Daikin
Daikin 4MKD90BVM User manual
Popular Heat Pump manuals by other brands
Bosch
Bosch FHP RT-20 Installation, operation and maintenance manual
Gorenje
Gorenje TCX 300 Instructions for use
Carrier
Carrier 25TPA7 installation instructions
IVT
IVT 12 THR-N installation manual
Aquacal
Aquacal H/AT100R Owner's manual and installation guide
Carrier
Carrier AQUAZONE 50RHC Installation and service instructions
Chiltrix
Chiltrix CX50 Installation and operation manual
CGC
CGC BULLDOG InnKeeper Installation, operation & maintenance manual
Dimplex
Dimplex WI 10TU Installation and operating instructions
Dimplex
Dimplex BWP 301 L Installation and operating instructions
Danfoss
Danfoss Optyma Integral Series instructions
Carrier
Carrier Performance 50VT Product data