Remote Controller Installation; Optional Installation Work; Optional Kit Installation; External Input And Output - Fujitsu KHT Series Installation Manual

■ Connection cable
Earth (ground)
■ Remote controller cable
DIP switch
2-wire type
White
Red
Remote
controller
cable
Remote controller
"2 WIRE"
Factory setting
*Earth (Ground) the remote controller if it has a earth (ground) wire.
(2) After wiring is complete, secure the remote controller cable, connection cable, and
power supply cable with the cable clamps.
Cable tie (medium)
(Accessory)
Remote controller
cable
(3) Seal the cable outlet or other gaps with putty to prevent dew condensation or insect
from entering the electric control box.
(4) Replace the control box cover.
Do not bundle the remote controller cable, or wire the remote controller cable in parallel,
with the indoor unit connection wire (to the outdoor unit) and the power supply cable. It
may cause erroneous operation.

3. 9. Remote controller installation

To install and set the remote controller, refer to the installation manual of the remote
controller (wired type).
Control line
Power line
Outdoor Connection
unit cable
Print circuit board
(PCB)
3-wire type
Black
White
Red
Remote
controller
cable
Remote controller
Connecting the
Set to "3 WIRE"
Optional parts
Control box
Connection cable
(to outdoor unit)
CAUTION

4. OPTIONAL INSTALLATION WORK

4. 1. Optional kit installation

Regulation of cable differs from each locality, refer in accordance with local rules.
CN8 (Remote sensor)
Y1 Y1 Y2 Y2 Y3 Y3 1 1 2 2
Terminal
(External in)
This air conditioner can be connected with the following optional kits.
For details on how to install optional parts, refer to the installation manual included in each
item.
Connector No.
CN48
CN8
CN47*1
CN65*2 External input and output PCB (UTY-XCSX)
*1: For external output terminal setting, refer to Function No.60 in "6. FUNCTION SETTING".
*2: Other options (WLAN adapter, converters, etc.) may be available by using the optional
External input and output PCB.

4. 2. External input and output

4. 2. 1. External input
• Indoor unit functions such as Operation/Stop or Forced stop can be done by using
indoor unit terminals.
• "Operation/Stop" mode or "Forced stop" mode can be selected with function setting of
indoor unit.
• A twisted pair cable (22 AWG) should be used. Maximum length of cable is 150 m (492 ft.).
• Use an external input and output cable with appropriate external dimension, depending
on the number of cables to be installed.
• The wire connection should be separate from the power cable line.
Terminal
● Dry contact terminal
When a power supply is unnecessary at the input device you want to connect, use the Dry
contact terminal.
*1
Connected device
*1: The switch can be used on the following condition: DC 12 V to 24 V, 1 mA to 15 mA.
■ Operation behavior
● Input signal type
ON
Edge
OFF
When function setting is "Operation/Stop" mode 1.
Input signal
OFF → ON
Operation
ON → OFF
Stop
WARNING
CN48 CN65 CN47
(IR receiver) (External in/out PCB) (External out)
Option type
IR Receiver (UTY-LBTM)
Remote sensor (UTY-XSZX)
Connect wire (UTY-XWZXZG)
Connected device
PCB
Terminal
(External in)
Command
En-11