Phau Ntawv Qhia

En-10
5.2. External input and output
5.2.1. 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 492 ft (150 m).
• 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.
Y1 Y2
1
REMOTE CONTROL
Ex IN
2
Connected device
Terminal
● Dry contact terminal
When a power supply is unnecessary at the input device you want to connect, use the Dry
contact terminal.
*1
Terminal
(External in)
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
Edge
ON
OFF
When function setting is “Operation/Stop” mode 1.
Input signal Command
OFF → ON Operation
ON → OFF Stop
When function setting is “Forced stop” mode.
Input signal Command
OFF → ON Forced stop
ON → OFF Normal
* When the forced stop is triggered, indoor unit stops and Operation/Stop operation by a
remote controller is restricted.
When function setting is “Operation/Stop” mode 2.
Input signal Command
OFF → ON Operation
ON → OFF Stop (R.C. disabled)
5.2.2. External output
• A twisted pair cable (22AWG) should be used. Maximum length of cable is 82 ft (25 m).
• Use an external input and output cable with appropriate external dimension, depending
on the number of cables to be installed.
• Output voltage: Hi DC12V±2V, Lo 0V.
• Permissible current: 50mA
■
Output select
When interlocking with external device
CN47
PCB
Connected
device
Relay (locally purchased)
or
When displaying “Operation/Stop”
CN47
PCB
Connected device
Resistor
LED
■
Operation behavior
Functions of the external output terminal can be switched.
(♦... Factory setting)
Function setting Status Output voltage
60
00
Stop 0 V
♦
Operation DC 12 V
01 - 04
OFF 0 V
Cooling thermostat ON DC 12 V
05
OFF 0 V
Heating operation ON DC 12 V
06
Stop 0 V
Operation DC 12 V
07 - 08
OFF 0 V
Cooling thermostat ON DC 12 V
09
Normal 0 V
Error DC 12 V
10
Indoor unit fan stop 0 V
Indoor unit fan operation DC 12 V
11
External heater OFF 0 V
External heater ON DC 12 V
Refer to the Design & technical manual.
5.2.3. Connection methods
■
Wire modification
• Remove insulation from wire attached to wire kit connector.
• Remove insulation from locally purchased cable. Use crimp type insulated butt
connector to join field cable and wire kit wire.
• Connect the wire with connecting wire with solder.
IMPORTANT: Be sure to insulate the connection between the wires.
Locally purchased
Option parts
External output wire
Solder and insulate the connected parts.
• Connecting wires to the terminals.
Use ring terminals with insulating sleeves to connect to the terminal block.
• Connection terminals and wiring arrangement (Refer to “5.3. Other optional parts”)
5.3. Other optional parts
5.4.1. Connection method
• Connection terminals and wiring arrangement
In following figure, all the possible connections are done for description.
In actual installation, connections will differ according to each installation requirements.
External
input
External
input and
output PCB
Cable tie (accessories)
External output
or Fresh air
intake