Daikin FTX-N/U Manual page 453

FTX-N/U, FVXS-N, FDMQ-R Series
14.17 <KRP1C74> Wiring Adaptor
Accessories
Check if the following accessories are included in the kit.
Name Adaptor for wiring
Shape
Quantity ×1
Notes
Kits vary according to applicable models.
A special adaptor fixing plate and box are required for the following
models.
FDMQ KRP4A98
Caution
All wiring must be performed by an authorized electrician.
For electric wiring work, refer to also "Wiring diagram"
attached to the control box lid and this manual.
All wiring must be worked after shutting down power supply.
All field supplied parts and materials and electric works must
conform to local codes.
A circuit breaker capable of shutting down power supply to
the entire system must be installed.
Names of parts
Harness
X2A
X1 X2 X3 X4
F1U F2U
Terminals for operation status
Installation
Do not bundle low and high voltage wires together.
Bundle any excess wires with the attached clamps so as to keep loose wires off
the indoor unit PCB.
Harness PCB support Clamp Installation manual
×1 ×4 ×3
This function can not be used.
Terminals for controlling
auxiliary heater,humidifier,
and other equipment.
X1A
Electric wiring
Refer to the wiring diagram attached to the indoor unit before
attempting to wire.
Make sure wires to units do not pass over the PCB when wiring.
Wire the adaptor to the indoor unit as shown below.
×1
X1M
X2A
X2M
X1A
1 Thermo-ON and Fan ON status
Thermo-ON status
Contact terminals X1 and X2 close
while the indoor unit is Thermo-ON
(call for cooling or heating)
Example : Obtaining status
X1 (or X3)
Dry contact
to BMS or
Monitoring
panel
X2 (or X4)
2
Interlocking Humidifier and Heater
Humidifier output (Y2-YC)
Energized while heating
Thermo-ON (call for heating)
Heater output (Y1-YC)
Auxiliary heater output with
heat pump heating
Primary heater output when
heat pump lockout enabled
Mounting plate
for adaptor PCB
(KRP4A98)
451
X33A
Indoor unit PCB
Fan ON status
Contact terminals X3 and X4 close
when indoor unit fan is ON
Example : Interlock
X1 (or X3)
24VAC
Relay or
Actuator
X2 (or X4)
24VAC
24VAC
Humidifier
Interlock
Y2
Relay
24VAC
Heater
Y1
Relay
YC
24VAC
PCB support
Adaptor
(KRP1C74)
C: 2P263038-1F
EDUS091558E